10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2021

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

1-16725

(Commission file number)

PRINCIPAL FINANCIAL GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware	42-1520346
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)

711 High Street, Des Moines, Iowa 50392

(Address of principal executive offices)

(515) 247-5111

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading symbol(s)	Name of each exchange on which registered
Common Stock	PFG	Nasdaq Global Select Market

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The total number of shares of the registrant’s Common Stock, $0.01 par value, outstanding as of October 21, 2021, was 265,069,422.

PRINCIPAL FINANCIAL GROUP, INC.

TABLE OF CONTENTS

		Page
Part I - FINANCIAL INFORMATION
Item 1.	Financial Statements	3
	Condensed Consolidated Statements of Financial Position as of September 30, 2021 (Unaudited) and December 31, 2020	3
	Unaudited Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2021 and 2020	4
	Unaudited Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2021 and 2020	5
	Unaudited Condensed Consolidated Statements of Stockholders’ Equity for the three and nine months ended September 30, 2021 and 2020	6
	Unaudited Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2021 and 2020	8
	Notes to Unaudited Condensed Consolidated Financial Statements — September 30, 2021	9
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	87
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	121
Item 4.	Controls and Procedures	128
Part II — OTHER INFORMATION
Item 1.	Legal Proceedings	128
Item 1A.	Risk Factors	128
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	129
Item 6.	Exhibits	130
Signature		131

2

PART I — FINANCIAL INFORMATION

Item 1. Financial Statements

Principal Financial Group, Inc.
Condensed Consolidated Statements of Financial Position

	September 30,		December 31,
	2021		2020
	(Unaudited)
	(in millions)
Assets
Fixed maturities, available-for-sale	$	76,557.1	$	78,710.3
Fixed maturities, trading		413.5		532.1
Equity securities (2021 and 2020 include $789.1 million and $902.5 million related to consolidated variable interest entities)		2,428.2		2,013.4
Mortgage loans (2021 and 2020 include $1,334.1 million and $319.0 million related to consolidated variable interest entities)		19,426.0		17,343.0
Real estate (2021 and 2020 include $653.3 million and $476.8 million related to consolidated variable interest entities)		1,965.6		1,797.3
Policy loans		762.1		784.0
Other investments (2021 and 2020 include $437.5 million and $348.5 million related to consolidated variable interest entities and $0.0 million and $28.5 million measured at fair value under the fair value option)		5,341.9		5,126.8
Total investments		106,894.4		106,306.9
Cash and cash equivalents (2021 and 2020 include $52.1 million and $28.8 million related to consolidated variable interest entities)		3,145.4		2,849.8
Accrued investment income		727.7		710.6
Premiums due and other receivables		1,713.2		1,723.8
Deferred acquisition costs		3,696.9		3,409.7
Property and equipment		1,065.4		1,019.0
Goodwill		1,648.4		1,711.0
Other intangibles		1,629.4		1,723.0
Separate account assets (2021 and 2020 include $34,420.2 million and $41,138.9 million related to consolidated variable interest entities)		177,850.5		175,951.4
Other assets		537.1		1,222.5
Total assets	$	298,908.4	$	296,627.7
Liabilities
Contractholder funds (2021 and 2020 include $350.7 million and $388.6 million related to consolidated variable interest entities)	$	43,828.9	$	43,237.7
Future policy benefits and claims		43,784.0		45,207.2
Other policyholder funds		1,063.8		1,059.4
Short-term debt		74.3		84.7
Long-term debt		4,279.7		4,279.2
Income taxes currently payable		8.2		22.3
Deferred income taxes		2,345.6		2,330.8
Separate account liabilities (2021 and 2020 include $34,420.2 million and $41,138.9 million related to consolidated variable interest entities)		177,850.5		175,951.4
Other liabilities (2021 and 2020 include $76.6 million and $24.5 million related to consolidated variable interest entities)		9,200.9		7,582.1
Total liabilities		282,435.9		279,754.8
Redeemable noncontrolling interest (2021 and 2020 include $309.7 million and $226.8 million related to consolidated variable interest entities)		343.3		255.6
Stockholders' equity
Common stock, par value $0.01 per share; 2,500.0 million shares authorized; 484.3 million and 481.9 million shares issued as of 2021 and 2020; 266.1 million and 273.3 million shares outstanding as of 2021 and 2020		4.8		4.8
Additional paid-in capital		10,436.5		10,321.6
Retained earnings		12,583.9		11,838.0
Accumulated other comprehensive income		1,619.2		2,383.1
Treasury stock, at cost (218.2 million and 208.6 million shares as of 2021 and 2020)		(8,573.7)		(7,988.6)
Total stockholders' equity attributable to Principal Financial Group, Inc.		16,070.7		16,558.9
Noncontrolling interest		58.5		58.4
Total stockholders' equity		16,129.2		16,617.3
Total liabilities and stockholders' equity	$	298,908.4	$	296,627.7

See accompanying notes.

3

Principal Financial Group, Inc.
Condensed Consolidated Statements of Operations
(Unaudited)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions, except per share data)
Revenues
Premiums and other considerations	$	1,230.5	$	1,184.3	$	3,335.3	$	4,628.4
Fees and other revenues		1,251.8		1,143.0		3,711.0		3,332.6
Net investment income		1,093.4		917.9		3,167.0		2,846.1
Net realized capital gains (losses)		(152.0)		65.5		(41.7)		169.5
Total revenues		3,423.7		3,310.7		10,171.6		10,976.6
Expenses
Benefits, claims and settlement expenses		1,770.9		1,839.8		4,958.4		6,299.8
Dividends to policyholders		28.2		29.9		75.3		90.2
Operating expenses		1,196.5		1,165.9		3,663.3		3,484.7
Total expenses		2,995.6		3,035.6		8,697.0		9,874.7
Income before income taxes		428.1		275.1		1,474.6		1,101.9
Income taxes		63.8		39.2		222.4		164.9
Net income		364.3		235.9		1,252.2		937.0
Net income (loss) attributable to noncontrolling interest		4.4		(0.1)		13.4		13.8
Net income attributable to Principal Financial Group, Inc.	$	359.9	$	236.0	$	1,238.8	$	923.2
Earnings per common share
Basic earnings per common share	$	1.34	$	0.86	$	4.58	$	3.36
Diluted earnings per common share	$	1.32	$	0.85	$	4.51	$	3.34

See accompanying notes.

4

Principal Financial Group, Inc.
Condensed Consolidated Statements of Comprehensive Income
(Unaudited)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Net income	$	364.3	$	235.9	$	1,252.2	$	937.0
Other comprehensive income (loss), net:
Net unrealized gains (losses) on available-for-sale securities		(23.6)		226.7		(606.1)		852.8
Net unrealized gains (losses) on derivative instruments		20.7		(25.1)		32.4		7.1
Foreign currency translation adjustment		(193.3)		94.3		(214.1)		(183.6)
Net unrecognized postretirement benefit obligation		9.3		10.5		21.2		31.9
Other comprehensive income (loss)		(186.9)		306.4		(766.6)		708.2
Comprehensive income		177.4		542.3		485.6		1,645.2
Comprehensive income attributable to noncontrolling interest		2.1		9.9		10.7		12.8
Comprehensive income attributable to Principal Financial Group, Inc.	$	175.3	$	532.4	$	474.9	$	1,632.4

See accompanying notes.

5

Principal Financial Group, Inc.
Condensed Consolidated Statements of Stockholders’ Equity
(Unaudited)

							Accumulated
			Additional				other						Total
	Common		paid-in		Retained		comprehensive		Treasury		Noncontrolling		stockholders'
	stock		capital		earnings		income		stock		interest		equity
	(in millions)
Balances as of July 1, 2020	$	4.8	$	10,259.6	$	11,441.4	$	1,450.7	$	(7,913.4)	$	67.9	$	15,311.0
Common stock issued		—		11.5		—		—		—		—		11.5
Stock-based compensation		—		21.9		(2.3)		—		—		—		19.6
Treasury stock acquired, common		—		—		—		—		(0.2)		—		(0.2)
Dividends to common stockholders		—		—		(153.7)		—		—		—		(153.7)
Distributions to noncontrolling interest		—		—		—		—		—		(1.1)		(1.1)
Contributions from noncontrolling interest		—		—		—		—		—		1.0		1.0
Adjustments to redemption amount of redeemable noncontrolling interest		—		(1.8)		—		—		—		0.1		(1.7)
Net income (1)		—		—		236.0		—		—		1.4		237.4
Other comprehensive income (1)		—		—		—		296.4		—		0.9		297.3
Balances as of September 30, 2020	$	4.8	$	10,291.2	$	11,521.4	$	1,747.1	$	(7,913.6)	$	70.2	$	15,721.1
Balances as of July 1, 2021	$	4.8	$	10,399.7	$	12,395.0	$	1,803.8	$	(8,370.2)	$	58.4	$	16,291.5
Common stock issued		—		14.4		—		—		—		—		14.4
Stock-based compensation		—		23.5		(2.8)		—		—		0.1		20.8
Treasury stock acquired, common		—		—		—		—		(203.5)		—		(203.5)
Dividends to common stockholders		—		—		(168.2)		—		—		—		(168.2)
Distributions to noncontrolling interest		—		—		—		—		—		(1.4)		(1.4)
Contributions from noncontrolling interest		—		—		—		—		—		1.6		1.6
Purchase of subsidiary shares from noncontrolling interest (1)		—		(1.1)		—		—		—		—		(1.1)
Net income (1)		—		—		359.9		—		—		1.7		361.6
Other comprehensive loss (1)		—		—		—		(184.6)		—		(1.9)		(186.5)
Balances as of September 30, 2021	$	4.8	$	10,436.5	$	12,583.9	$	1,619.2	$	(8,573.7)	$	58.5	$	16,129.2

(1) Excludes amounts attributable to redeemable noncontrolling interest. See Note 9, Stockholders’ Equity, for further details.

See accompanying notes.

6

Principal Financial Group, Inc.
Condensed Consolidated Statements of Stockholders’ Equity - continued
(Unaudited)

							Accumulated
			Additional				other						Total
	Common		paid-in		Retained		comprehensive		Treasury		Noncontrolling		stockholders'
	stock		capital		earnings		income		stock		interest		equity
	(in millions)
Balances as of January 1, 2020	$	4.8	$	10,182.6	$	11,074.3	$	1,037.9	$	(7,681.6)	$	67.8	$	14,685.8
Common stock issued		—		34.6		—		—		—		—		34.6
Stock-based compensation		—		74.4		(6.9)		—		—		—		67.5
Treasury stock acquired, common		—		—		—		—		(232.0)		—		(232.0)
Dividends to common stockholders		—		—		(460.8)		—		—		—		(460.8)
Distributions to noncontrolling interest		—		—		—		—		—		(24.3)		(24.3)
Contributions from noncontrolling interest		—		—		—		—		—		4.7		4.7
Purchase of subsidiary shares from noncontrolling interest (1)		—		(0.6)		—		—		—		(0.3)		(0.9)
Adjustments to redemption amount of redeemable noncontrolling interest		—		0.2		—		—		—		—		0.2
Effects of implementation of accounting change related to credit losses, net		—		—		(8.4)		—		—		—		(8.4)
Net income (1)		—		—		923.2		—		—		23.3		946.5
Other comprehensive income (1)		—		—		—		709.2		—		(1.0)		708.2
Balances as of September 30, 2020	$	4.8	$	10,291.2	$	11,521.4	$	1,747.1	$	(7,913.6)	$	70.2	$	15,721.1
Balances as of January 1, 2021	$	4.8	$	10,321.6	$	11,838.0	$	2,383.1	$	(7,988.6)	$	58.4	$	16,617.3
Common stock issued		—		57.3		—		—		—		—		57.3
Stock-based compensation		—		82.2		(7.3)		—		—		0.1		75.0
Treasury stock acquired, common		—		—		—		—		(585.1)		—		(585.1)
Dividends to common stockholders		—		—		(485.6)		—		—		—		(485.6)
Distributions to noncontrolling interest		—		—		—		—		—		(4.8)		(4.8)
Contributions from noncontrolling interest		—		—		—		—		—		5.4		5.4
Purchase of subsidiary shares from noncontrolling interest (1)		—		(16.4)		—		—		—		(1.7)		(18.1)
Adjustments to redemption amount of redeemable noncontrolling interest		—		(8.2)		—		—		—		(0.4)		(8.6)
Net income (1)		—		—		1,238.8		—		—		3.9		1,242.7
Other comprehensive loss (1)		—		—		—		(763.9)		—		(2.4)		(766.3)
Balances as of September 30, 2021	$	4.8	$	10,436.5	$	12,583.9	$	1,619.2	$	(8,573.7)	$	58.5	$	16,129.2

(1) Excludes amounts attributable to redeemable noncontrolling interest. See Note 9, Stockholders’ Equity, for further details.

See accompanying notes.

7

Principal Financial Group, Inc.
Condensed Consolidated Statements of Cash Flows
(Unaudited)

	For the nine months ended
	September 30,
	2021		2020
	(in millions)
Net cash provided by operating activities	$	2,107.0	$	3,110.4
Investing activities
Fixed maturities available-for-sale and equity securities with intent to hold:
Purchases		(11,065.1)		(12,060.6)
Sales		2,383.5		2,677.3
Maturities		8,162.3		6,247.7
Mortgage loans acquired or originated		(4,277.1)		(2,281.7)
Mortgage loans sold or repaid		2,142.3		1,877.0
Real estate acquired		(187.8)		(177.1)
Real estate sold		43.5		—
Net purchases of property and equipment		(108.9)		(82.9)
Net change in other investments		40.0		160.4
Net cash used in investing activities		(2,867.3)		(3,639.9)
Financing activities
Issuance of common stock		57.3		34.6
Acquisition of treasury stock		(585.1)		(232.0)
Payments for financing element derivatives		(27.6)		(22.2)
Purchase of subsidiary shares from noncontrolling interest		(24.2)		(0.9)
Dividends to common stockholders		(485.6)		(460.8)
Issuance of long-term debt		—		608.8
Principal repayments of long-term debt		(1.4)		(65.3)
Net proceeds from (repayments of) short-term borrowings		0.2		(12.3)
Investment contract deposits		7,341.8		7,798.7
Investment contract withdrawals		(6,566.4)		(6,520.3)
Net increase in banking operation deposits		1,346.9		441.8
Other		—		0.2
Net cash provided by financing activities		1,055.9		1,570.3
Net increase in cash and cash equivalents		295.6		1,040.8
Cash and cash equivalents at beginning of period		2,849.8		2,515.9
Cash and cash equivalents at end of period	$	3,145.4	$	3,556.7
Supplemental disclosure of non-cash activities:
Changes from re-designation of other postretirement employee benefits (“OPEB”) plan assets to cover non-retiree benefits:
Increases in equity securities re-designated from funded status of OPEB plan	$	548.1	$	—
Increases in other investments re-designated from funded status of OPEB plan		117.5		—
Decrease in tax receivable re-designated from funded status of OPEB plan		(9.1)		—
Decrease in accumulated other comprehensive income (“AOCI”) due to reclassifying excess assets out of funded status of OPEB plan		9.1		—
Decrease in other assets due to reclassifying excess assets out of funded status of OPEB plan		(665.6)		—
Assets received in kind from pension risk transfer transaction		109.5		1,062.4

See accompanying notes.

8

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements
September 30, 2021
(Unaudited)

1. Nature of Operations and Significant Accounting Policies

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Principal Financial Group, Inc. (“PFG”) have been prepared in conformity with accounting principles generally accepted in the U.S. (“U.S. GAAP”) for interim financial statements and with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2021, are not necessarily indicative of the results that may be expected for the year ended December 31, 2021, especially when considering risks and uncertainties, including those associated with the novel coronavirus (“COVID-19”), that may impact our business, results of operations, financial condition and liquidity. Our use of estimates and assumptions affect amounts reported and disclosed and includes, but is not limited to, the fair value of investments in the absence of quoted market values, investment impairments and valuation allowances, the fair value of derivatives, deferred acquisition costs (“DAC”) and other actuarial balances, measurement of goodwill and intangible assets, the liability for future policy benefits and claims, the value of pension and other postretirement benefits and accounting for income taxes and the valuation of deferred tax assets. Our estimates and assumptions could change in the future as more information becomes known about the impact of COVID-19. Our results of operations and financial condition may also be impacted by other uncertainties including evolving regulatory, legislative and standard-setter accounting interpretations and guidance.

These interim unaudited condensed consolidated financial statements should be read in conjunction with our annual audited financial statements as of December 31, 2020, included in our Form 10-K for the year ended December 31, 2020, filed with the United States Securities and Exchange Commission (“SEC”). The accompanying condensed consolidated statement of financial position as of December 31, 2020, has been derived from the audited consolidated statement of financial position but does not include all of the information and footnotes required by U.S. GAAP for complete financial statements.

Consolidation

We have relationships with various special purpose entities and other legal entities that must be evaluated to determine if the entities meet the criteria of a variable interest entity (“VIE”) or a voting interest entity (“VOE”). This assessment is performed by reviewing contractual, ownership and other rights, including involvement of related parties, and requires use of judgment. First, we determine if we hold a variable interest in an entity by assessing if we have the right to receive expected losses and expected residual returns of the entity. If we hold a variable interest, then the entity is assessed to determine if it is a VIE. An entity is a VIE if the equity at risk is not sufficient to support its activities, if the equity holders lack a controlling financial interest or if the entity is structured with non-substantive voting rights. In addition to the previous criteria, if the entity is a limited partnership or similar entity, it is a VIE if the limited partners do not have the power to direct the entity’s most significant activities through substantive kick-out rights or participating rights. A VIE is evaluated to determine the primary beneficiary. The primary beneficiary of a VIE is the enterprise with (1) the power to direct the activities of a VIE that most significantly impact the entity’s economic performance and (2) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE. When we are the primary beneficiary, we are required to consolidate the entity in our financial statements. We reassess our involvement with VIEs on a quarterly basis. For further information about VIEs, refer to Note 2, Variable Interest Entities.

If an entity is not a VIE, it is considered a VOE. VOEs are generally consolidated if we own a greater than 50% voting interest. If we determine our involvement in an entity no longer meets the requirements for consolidation under either the VIE or VOE models, the entity is deconsolidated. Entities in which we have management influence over the operating and financing decisions but are not required to consolidate, other than investments accounted for at fair value under the fair value option, are reported using the equity method.

9

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Recent Accounting Pronouncements

Description	Date of adoption	Effect on our consolidated financial statements or other significant matters
Standards not yet adopted:
Targeted improvements to the accounting for long-duration insurance contracts This authoritative guidance updates certain requirements in the accounting for long-duration insurance and annuity contracts. 1. The assumptions used to calculate the liability for future policy benefits on traditional and limited-payment contracts will be reviewed and updated periodically. Cash flow assumptions will be reviewed at least annually and updated when necessary with the impact recognized in net income. Discount rate assumptions are prescribed as the current upper-medium grade (low credit risk) fixed income instrument yield and will be updated quarterly with the impact recognized in other comprehensive income (“OCI”). 2. Market risk benefits, which are contracts or contract features that provide protection to the policyholder from capital market risk and expose us to other-than-nominal capital market risk, are measured at fair value. The periodic change in fair value is recognized in net income with the exception of the periodic change in fair value related to our own nonperformance risk, which is recognized in OCI. 3. DAC and other actuarial balances for all insurance and annuity contracts will be amortized on a constant basis over the expected term of the related contracts. 4. Additional disclosures are required, including disaggregated rollforwards of significant insurance liabilities and other account balances as well as disclosures about significant inputs, judgments, assumptions and methods used in measurement. The guidance for the liability for future policy benefits for traditional and limited-payment contracts and DAC will be applied on a modified retrospective basis; that is, to contracts in force as of the beginning of the earliest period presented based on their existing carrying amounts. An entity may elect to apply the changes retrospectively. The guidance for market risk benefits will be applied retrospectively. Early adoption is permitted.	January 1, 2023	Our implementation and evaluation process to date includes, but is not limited to the following: ● identifying and documenting contracts and contract features in scope of the guidance; ● identifying the actuarial models, systems and processes to be updated; ● evaluating and selecting our systems solutions for implementing the new guidance; ● building models and evaluating preliminary output as models are developed; ● evaluating and finalizing our key accounting policies; ● assessing the impact to our chart of accounts; ● developing format and content of new disclosures; ● conducting operational dry runs using model output and updated chart of accounts; ● evaluating transition requirements and impacts and ● establishing and documenting appropriate internal controls. As we progress through our implementation, we will be able to better assess the impact to our consolidated financial statements; however, we expect this guidance to significantly change how we account for many of our insurance and annuity products.

10

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Description	Date of adoption	Effect on our consolidated financial statements or other significant matters
Standards adopted:
Simplifying the accounting for income taxes This authoritative guidance simplifies the accounting for income taxes by removing certain exceptions, including exceptions related to the incremental approach for intraperiod tax allocation, calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. Also, the guidance clarifies the accounting for franchise taxes, transactions that result in a step-up in the tax basis of goodwill and enacted changes in tax laws or rates. It specifies that an entity is not required to allocate the consolidated amount of current and deferred tax expense to a legal entity that is not subject to tax in its separate financial statements, although an entity may elect to do so. The guidance will be applied based on varying transition methods defined by amendment. Early adoption is permitted.	January 1, 2021	This guidance did not have a material impact on our consolidated financial statements.
Facilitation of the effects of reference rate reform on financial reporting This authoritative guidance provides optional expedients and exceptions for contracts and hedging relationships affected by reference rate reform. An entity may elect not to apply certain modification accounting requirements to contracts affected by reference rate reform and instead account for the modified contract as a continuation of the existing contract. Also, an entity may apply optional expedients to continue hedge accounting for hedging relationships in which the critical terms change due to reference rate reform. This guidance eases the financial reporting impacts of reference rate reform on contracts and hedging relationships and is effective until December 31, 2022.	March 12, 2020	We adopted the guidance upon issuance prospectively and elected the applicable optional expedients and exceptions for contracts and hedging relationships impacted by reference rate reform through December 31, 2022. The guidance did not have an impact on our consolidated financial statements upon adoption.
Goodwill impairment testing This authoritative guidance simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 (which measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill to the carrying amount of that goodwill) from the goodwill impairment test. A goodwill impairment loss will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary.	January 1, 2020	This guidance reduces complexity and costs associated with performing a Step 2 test, should one be needed in the future. This guidance did not have a material impact on our consolidated financial statements at adoption.

11

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Description	Date of adoption	Effect on our consolidated financial statements or other significant matters
Credit losses This authoritative guidance requires entities to use a current expected credit loss (“CECL”) model to measure impairment for most financial assets that are not recorded at fair value through net income. Under the CECL model, an entity will estimate lifetime expected credit losses considering available relevant information about historical events, current conditions and reasonable and supportable forecasts. The CECL model does not apply to available-for-sale debt securities; however, the credit loss calculation and subsequent recoveries for available-for-sale securities are required to be recorded through an allowance. This guidance also expands the required credit loss disclosures.	January 1, 2020	We adopted the guidance using the modified retrospective approach. A cumulative effect adjustment of $8.4 million was recorded as a decrease to retained earnings. We recorded an offsetting increase in the allowance for credit loss for mortgage loans, reinsurance recoverables and commitments and a decrease for deferred tax impacts. See Note 3, Investments, for further details.

When we adopt new accounting standards, we have a process in place to perform a thorough review of the pronouncement, identify the financial statement and system impacts and create an implementation plan among our impacted business units to ensure we are compliant with the pronouncement on the date of adoption. This includes having effective processes and controls in place to support the reported amounts. Each of the standards listed above is in varying stages in our implementation process based on its issuance and adoption dates. We are on track to implement guidance by the respective effective dates.

Investments

Loan modifications related to COVID-19

Our commercial and residential mortgage loan portfolios can include loans that have been modified. We assess loan modifications on a case-by-case basis to evaluate whether a troubled debt restructuring (“TDR”) has occurred. In response to COVID-19, the Coronavirus Aid, Relief and Economic Security Act, which was subsequently amended by the Consolidated Appropriations Act, 2021, (collectively the “CARES Act”) provides a temporary suspension of TDR accounting for certain COVID-19 related loan modifications where the loan was not more than 30 days past due as of December 31, 2019. We elected the TDR relief in the CARES Act beginning in the second quarter of 2020. The CARES Act TDR relief does not apply to modifications completed subsequent to the earlier of 60 days after the national emergency related to COVID-19 ends, or January 1, 2022. In addition, the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (As Revised on April 7, 2020) (“Interagency Statement”) provides additional guidance to determine if a short-term COVID-19 related loan modification is a TDR. We consider the CARES Act and the Interagency Statement when assessing loan modifications to determine whether a TDR has occurred. See Note 3, Investments, under the caption “Mortgage Loan Modifications” for further details.

Derivatives

Overview

Derivatives are financial instruments whose values are derived from interest rates, foreign exchange rates, financial indices or the values of securities. Derivatives generally used by us include swaps, options, futures and forwards. Derivative positions are either assets or liabilities in the consolidated statements of financial position and are measured at fair value, generally by obtaining quoted market prices or through the use of pricing models. See Note 10, Fair Value Measurements, for policies related to the determination of fair value. Fair values can be affected by changes in interest rates, foreign exchange rates, financial indices, values of securities, credit spreads, and market volatility and liquidity.

12

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Accounting and Financial Statement Presentation

We designate derivatives as either:

(a) a hedge of the exposure to changes in the fair value of a recognized asset or liability or an unrecognized firm commitment, including those denominated in a foreign currency (“fair value hedge”);

(b) a hedge of a forecasted transaction or the exposure to variability of cash flows to be received or paid related to a recognized asset or liability, including those denominated in a foreign currency (“cash flow hedge”);

(c) a hedge of a net investment in a foreign operation or

(d) a derivative not designated as a hedging instrument.

Our accounting for the ongoing changes in fair value of a derivative depends on the intended use of the derivative and the designation, as described above, and is determined when the derivative contract is entered into or at the time of redesignation. Hedge accounting is used for derivatives that are specifically designated in advance as hedges and that reduce our exposure to an indicated risk by having a high correlation between changes in the value of the derivatives and the items being hedged at both the inception of the hedge and throughout the hedge period. Cash flows associated with derivatives are included within operating and financing activities in the consolidated statements of cash flows.

Fair Value Hedges. When a derivative is designated as a fair value hedge and is determined to be highly effective, changes in its fair value, along with changes in the fair value of the hedged asset, liability or firm commitment attributable to the hedged risk, are reported in the same consolidated statements of operations line item that is used to report the earnings effect of the hedged item. For fair value hedges of fixed maturities, available-for-sale, these changes in fair value are reported in net investment income. A fair value hedge determined to be highly effective may still result in a mismatch between the change in the fair value of the hedging instrument and the change in the fair value of the hedged item attributable to the hedged risk. Certain fair value hedges use the last-of-layer method to hedge a designated amount (the "last layer") within a closed portfolio of prepayable assets that is expected to remain outstanding for the length of the hedging relationship and is not expected to be impacted by prepayments, defaults or other factors that affect the timing and amount of cash flows. Prepayment risk is excluded when measuring the change in fair value attributable to the hedged risk under the last-of-layer method.

Cash Flow Hedges. When a derivative is designated as a cash flow hedge and is determined to be highly effective, changes in its fair value are recorded as a component of OCI. At the time the variability of cash flows being hedged impacts net income, the related portion of deferred gains or losses on the derivative instrument is reclassified and reported in net income.

Net Investment in a Foreign Operation Hedge. When a derivative is used as a hedge of a net investment in a foreign operation, its change in fair value, to the extent effective as a hedge, is recorded as a component of OCI. If the foreign operation is sold or upon complete or substantially complete liquidation, the deferred gains or losses on the derivative instrument are reclassified into net income.

Non-Hedge Derivatives. If a derivative does not qualify or is not designated for hedge accounting, all changes in fair value are reported in net income without considering the changes in the fair value of the economically associated assets or liabilities.

Hedge Documentation and Effectiveness Testing. At inception, we formally document all relationships between hedging instruments and hedged items, as well as our risk management objective and strategy for undertaking various hedge transactions. This process includes associating all derivatives designated as fair value or cash flow hedges with specific assets or liabilities on the consolidated statements of financial position or with specific firm commitments or forecasted transactions. Documentation of fair value hedges that use the last-of-layer method supports the expectation that the hedged last layer amount is anticipated to be outstanding at the end of the hedging relationship and includes expectations of prepayments, defaults or other factors that affect the timing and amount of cash flows. Effectiveness of the hedge is formally assessed at inception and throughout the life of the hedging relationship. Even if a hedge is determined to be highly effective, the hedge may still result in a mismatch between the change in the fair value of the hedging instrument and the change in the fair value of the hedged item attributable to the hedged risk.

13

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

We use qualitative and quantitative methods to assess hedge effectiveness. Qualitative methods may include monitoring changes to terms and conditions and counterparty credit ratings. Quantitative methods may include statistical tests including regression analysis and minimum variance and dollar offset techniques. For last-of-layer method hedges, the assessment of hedge effectiveness includes confirming we expect the hedged last layer amount to be outstanding at the end of the hedging relationship.

Termination of Hedge Accounting. We prospectively discontinue hedge accounting when (1) the criteria to qualify for hedge accounting is no longer met, e.g., a derivative is determined to no longer be highly effective in offsetting the change in fair value or cash flows of a hedged item; (2) the derivative expires, is sold, terminated or exercised or (3) we remove the designation of the derivative being the hedging instrument for a fair value or cash flow hedge.

If it is determined that a derivative no longer qualifies as an effective hedge, the derivative will continue to be carried on the consolidated statements of financial position at its fair value, with changes in fair value recognized prospectively in net realized capital gains (losses). The asset or liability under a fair value hedge will no longer be adjusted for changes in fair value pursuant to hedging rules and the existing basis adjustment is amortized to the consolidated statements of operations line associated with the asset or liability. If a last-of-layer method hedging relationship is discontinued, the outstanding basis adjustment is allocated to the individual assets in the closed portfolio and those amounts are amortized consistent with the amortization of other discounts or premiums associated with those assets.

The component of AOCI related to discontinued cash flow hedges that are no longer highly effective is amortized to the consolidated statements of operations consistent with the net income impacts of the original hedged cash flows. If a cash flow hedge is discontinued because it is probable the hedged forecasted transaction will not occur, the deferred gain or loss is immediately reclassified from AOCI into net income.

Embedded Derivatives. We purchase and issue certain financial instruments and products that contain a derivative that is embedded in the financial instrument or product. We assess whether this embedded derivative is clearly and closely related to the asset or liability that serves as its host contract. If we deem that the embedded derivative's terms are not clearly and closely related to the host contract, and a separate instrument with the same terms would qualify as a derivative instrument, the derivative is bifurcated from that contract and held at fair value on the consolidated statements of financial position, with changes in fair value reported in net income.

Separate Accounts

The separate accounts are legally segregated and are not subject to the claims that arise out of any of our other business. The client, rather than us, directs the investments and bears the investment risk of these funds. The separate account assets represent the fair value of funds that are separately administered by us for contracts with equity, real estate and fixed income investments and are presented as a summary total within the consolidated statements of financial position. An equivalent amount is reported as separate account liabilities, which represent the obligation to return the monies to the client. We receive fees for mortality, withdrawal and expense risks, as well as administrative, maintenance and investment advisory services that are included in the consolidated statements of operations. Net deposits, net investment income and realized and unrealized capital gains and losses of the separate accounts are not reflected in the consolidated statements of operations.

Separate account assets and separate account liabilities include certain international retirement accumulation products where the segregated funds and associated obligation to the client are consolidated within our financial statements. We have determined that summary totals are the most meaningful presentation for these funds.

As of September 30, 2021 and December 31, 2020, the separate accounts included a separate account valued at $94.5 million and $80.4 million, respectively, which primarily included shares of our stock that were allocated and issued to eligible participants of qualified employee benefit plans administered by us as part of the policy credits issued under our 2001 demutualization. These shares are included in both basic and diluted earnings per share calculations. In the consolidated statements of financial position, the separate account shares are recorded at fair value and are reported as separate account assets with a corresponding separate account liability. Changes in fair value of the separate account shares are reflected in both the separate account assets and separate account liabilities and do not impact our results of operations.

14

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

2. Variable Interest Entities

We have relationships with various types of entities which may be VIEs. Certain VIEs are consolidated in our financial results. See Note 1, Nature of Operations and Significant Accounting Policies, under the caption “Consolidation” for further details of our consolidation accounting policies. We did not provide financial or other support to investees designated as VIEs for the periods ended September 30, 2021 and December 31, 2020.

Consolidated Variable Interest Entities

Mandatory Retirement Savings Funds

We hold an equity interest in Chilean mandatory privatized social security funds in which we provide asset management services. We determined the mandatory privatized social security funds, which also include contributions for voluntary pension savings, voluntary non-pension savings and compensation savings accounts, are VIEs. This is because the equity holders as a group lack the power, due to voting rights or similar rights, to direct the activities of the entity that most significantly impact the entity's economic performance and also because equity investors are protected from below-average market investment returns relative to the industry’s return, due to a regulatory guarantee that we provide. Further we concluded we are the primary beneficiary through our power to make decisions and our significant variable interest in the funds. The purpose of the funds, which reside in legally segregated entities, is to provide long-term retirement savings. The obligation to the customer is directly related to the assets held in the funds and, as such, we present the assets as separate account assets and the obligation as separate account liabilities within our consolidated statements of financial position.

Principal International Hong Kong offers retirement pension schemes in which we provide trustee, administration and asset management services to employers and employees under the Hong Kong Mandatory Provident Fund and Occupational Retirement Schemes Ordinance pension schemes. Each pension scheme has various guaranteed and non-guaranteed constituent funds, or investment options, in which customers can invest their money. The guaranteed funds provide either a guaranteed rate of return to the customer or a minimum guarantee on withdrawals under certain qualifying events. We determined the guaranteed funds are VIEs due to the fact the equity holders, as a group, lack the obligation to absorb expected losses due to the guarantee we provide. We concluded we are the primary beneficiary because we have the power to make decisions and to receive benefits and the obligation to absorb losses that could be potentially significant to the VIE. Therefore, we consolidate the underlying assets and liabilities of the funds and present as separate accounts or within the general account, depending on the terms of the guarantee.

Real Estate

We invest in several real estate limited partnerships and limited liability companies. The entities invest in real estate properties. Certain of these entities are VIEs based on the combination of our significant economic interest and related voting rights. We determined we are the primary beneficiary as a result of our power to control the entities through our significant ownership. Due to the nature of these real estate investments, the investment balance will fluctuate as we purchase and sell interests in the entities and as capital expenditures are made to improve the underlying real estate.

Sponsored Investment Funds

We sponsor and invest in certain investment funds for which we provide asset management services. Although our asset management fee is commensurate with the services provided and consistent with fees for similar services negotiated at arms-length, we have a variable interest for funds where our other interests are more than insignificant. The funds are VIEs as the equity holders lack power through voting rights to direct the activities of the entity that most significantly impact its economic performance. We determined we are the primary beneficiary of the VIEs where our interest in the entity is more than insignificant and we are the asset manager.

15

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Residential Mortgage Loans

We invest in ABS trusts. The trusts issue various collateralized mortgage obligation certificates and purchase residential mortgage loans. The trusts are considered VIEs due to insufficient equity to sustain themselves. We concluded we are the primary beneficiary as we purchase substantially all of the certificates and have the obligation to absorb losses that could potentially be significant to the VIEs.

Assets and Liabilities of Consolidated Variable Interest Entities

The carrying amounts of our consolidated VIE assets, which can only be used to settle obligations of consolidated VIEs, and liabilities of consolidated VIEs for which creditors do not have recourse were as follows:

	September 30, 2021				December 31, 2020
	Total		Total		Total		Total
	assets		liabilities		assets		liabilities
	(in millions)
Mandatory retirement savings funds (1)	$	35,161.0	$	34,771.0	$	41,995.2	$	41,527.9
Real estate (2)		691.0		42.8		499.0		21.3
Sponsored investment funds (3)		525.9		13.3		419.5		3.2
Residential mortgage loans (4)		1,337.5		21.0		319.8		—
Total	$	37,715.4	$	34,848.1	$	43,233.5	$	41,552.4

(1) The assets of the mandatory retirement savings funds primarily include separate account assets and equity securities. The liabilities primarily include separate account liabilities and contractholder funds.

(2) The assets of the real estate VIEs primarily include real estate and cash. Liabilities primarily include other liabilities.

(3) The assets of sponsored investment funds are primarily fixed maturities and equity securities, certain of which are reported with other investments, and cash. The consolidated statements of financial position included a $309.7 million and $226.8 million redeemable noncontrolling interest for sponsored investment funds as of September 30, 2021 and December 31, 2020, respectively.

(4) The assets of the residential mortgage loans VIEs primarily include residential mortgage loans. The liabilities include other liabilities as of September 30, 2021. Prior to 2021, the liabilities were eliminated in our consolidated results.

Unconsolidated Variable Interest Entities

We hold a variable interest in a number of VIEs where we are not the primary beneficiary. Our investments in these VIEs are reported in fixed maturities, available-for-sale; fixed maturities, trading; equity securities and other investments in the consolidated statements of financial position and are described below.

Unconsolidated VIEs include certain commercial mortgage-backed securities (“CMBS”), residential mortgage-backed pass-through securities (“RMBS”) and other asset-backed securities (“ABS”). All of these entities were deemed VIEs because the equity within these entities is insufficient to sustain them. We determined we are not the primary beneficiary in the entities within these categories of investments. This determination was based primarily on the fact we do not own the class of security that controls the unilateral right to replace the special servicer or equivalent function.

We invest in cash collateralized debt obligations, collateralized bond obligations, collateralized loan obligations and other collateralized structures, which are VIEs due to insufficient equity to sustain the entities. We have determined we are not the primary beneficiary of these entities primarily because we do not control the economic performance of the entities and were not involved with the design of the entities or because we do not have a potentially significant variable interest in the entities for which we are the asset manager.

16

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

We have invested in various VIE trusts and similar entities as a debt holder. Most of these entities are classified as VIEs due to insufficient equity to sustain them. In addition, we have an entity classified as a VIE based on the combination of our significant economic interest and lack of voting rights. We have determined we are not the primary beneficiary primarily because we do not control the economic performance of the entities and were not involved with the design of the entities.

We have invested in partnerships and other funds, which are classified as VIEs. The entities are VIEs as equity holders lack the power to control the most significant activities of the entities because the equity holders do not have either the ability by a simple majority to exercise substantive kick-out rights or substantive participating rights. We have determined we are not the primary beneficiary because we do not have the power to direct the most significant activities of the entities.

As previously discussed, we sponsor and invest in certain investment funds that are VIEs. We determined we are not the primary beneficiary of the VIEs for which we are the asset manager but do not have a potentially significant variable interest in the funds.

We hold an equity interest in Mexican mandatory privatized social security funds in which we provide asset management services. Our equity interest in the funds is considered a variable interest. We concluded the funds are VIEs because the equity holders as a group lack decision-making ability through their voting rights. We are not the primary beneficiary of the VIEs because although we, as the asset manager, have the power to direct the activities of the VIEs, we do not have a potentially significant variable interest in the funds.

17

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

The carrying value and maximum loss exposure for our unconsolidated VIEs were as follows:

			Maximum exposure to
	Asset carrying value		loss (1)
	(in millions)
September 30, 2021
Fixed maturities, available-for-sale:
Corporate	$	294.3	$	286.0
Residential mortgage-backed pass-through securities		2,882.6		2,816.2
Commercial mortgage-backed securities		5,283.2		5,086.5
Collateralized debt obligations (2)		3,566.3		3,569.6
Other debt obligations		7,080.5		6,942.3
Fixed maturities, trading:
Residential mortgage-backed pass-through securities		133.3		133.3
Commercial mortgage-backed securities		26.3		26.3
Collateralized debt obligations (2)		10.9		10.9
Other debt obligations		8.5		8.5
Equity securities		123.5		123.5
Other investments:
Other limited partnership and fund interests (3)		1,159.6		1,996.0
December 31, 2020
Fixed maturities, available-for-sale:
Corporate	$	296.9	$	285.7
Residential mortgage-backed pass-through securities		2,986.8		2,857.6
Commercial mortgage-backed securities		4,942.3		4,741.2
Collateralized debt obligations (2)		4,027.5		4,045.9
Other debt obligations		7,045.9		6,832.6
Fixed maturities, trading:
Residential mortgage-backed pass-through securities		190.5		190.5
Commercial mortgage-backed securities		27.1		27.1
Collateralized debt obligations (2)		20.6		20.6
Other debt obligations		9.4		9.4
Equity securities		121.7		121.7
Other investments:
Other limited partnership and fund interests (3)		999.1		1,739.0

(1) Our risk of loss is limited to our initial investment measured at amortized cost for fixed maturities, available-for-sale. Our risk of loss is limited to our investment measured at fair value for our fixed maturities, trading and equity securities. Our risk of loss is limited to our carrying value plus any unfunded commitments and/or guarantees and similar provisions for our other investments. A carrying value of zero is used if distributions have been received in excess of our investment, resulting in a negative carrying value for the investment. Unfunded commitments are not liabilities on our consolidated statements of financial position because we are only required to fund additional equity when called upon to do so by the general partner or investment manager.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

(3) As of September 30, 2021 and December 31, 2020, the maximum exposure to loss for other limited partnership and fund interests includes $133.2 million and $141.2 million, respectively, of debt within certain of our managed international real estate funds that is fully secured by assets whose value exceeds the amount of the debt, but also includes recourse to the investment manager.

18

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Money Market Funds

We are the investment manager for certain money market mutual funds. These types of funds are exempt from assessment under any consolidation model due to a scope exception for money market funds registered under Rule 2a-7 of the Investment Company Act of 1940 or similar funds. As of September 30, 2021 and December 31, 2020, money market mutual funds we manage held $5.1 billion and $4.4 billion in total assets, respectively. We have no contractual obligation to contribute to these funds; however, we provide support through the waiver of fees and through expense reimbursements. The amount of fees waived and expenses reimbursed was insignificant.

3. Investments

Fixed Maturities and Equity Securities

Fixed maturities include bonds, ABS, redeemable preferred stock and certain non-redeemable preferred securities. Equity securities include mutual funds, common stock, non-redeemable preferred stock and required regulatory investments. We classify fixed maturities as either available-for-sale or trading at the time of the purchase and, accordingly, carry them at fair value. Equity securities are also carried at fair value. See Note 10, Fair Value Measurements, for methodologies related to the determination of fair value. Unrealized gains and losses related to fixed maturities, available-for-sale, excluding those in fair value hedging relationships, are reflected in stockholders’ equity, net of adjustments associated with DAC and related actuarial balances, derivatives in cash flow hedge relationships and applicable income taxes. Mark-to-market adjustments on equity securities and mark-to-market adjustments on certain fixed maturities, trading are reflected in net realized capital gains (losses). Unrealized gains and losses related to hedged portions of fixed maturities, available-for-sale in fair value hedging relationships are reflected in net investment income. Mark-to-market adjustments related to certain securities carried at fair value with an investment objective to realize economic value through mark-to-market changes are reflected in net investment income.

The amortized cost of fixed maturities includes cost adjusted for amortization of premiums and discounts, computed using the interest method. The amortized cost of fixed maturities, available-for-sale is adjusted for changes in fair value of the hedged portions of securities in fair value hedging relationships and excludes accrued interest receivable. Accrued interest receivable is reported in accrued investment income on the consolidated statements of financial position. Fixed maturities, available-for-sale are subject to an allowance for credit loss and changes in the allowance are reported in net income as a component of net realized capital gains (losses). Interest income, as well as prepayment fees and the amortization of the related premium or discount, is reported in net investment income. For loan-backed and structured securities, we recognize income using a constant effective yield based on currently anticipated cash flows.

19

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

The amortized cost, gross unrealized gains and losses, allowance for credit loss and fair value of fixed maturities, available-for-sale were as follows:

			Gross		Gross		Allowance
	Amortized		unrealized		unrealized		for credit
	cost (1)		gains		losses		loss		Fair value
	(in millions)
September 30, 2021
Fixed maturities, available-for-sale:
U.S. government and agencies	$	1,821.7	$	140.6	$	40.5	$	—	$	1,921.8
Non-U.S. governments		906.3		139.3		0.8		—		1,044.8
States and political subdivisions		8,255.6		1,004.3		26.9		—		9,233.0
Corporate		41,412.9		4,350.9		203.0		15.9		45,544.9
Residential mortgage-backed pass-through securities		2,816.2		82.8		16.4		—		2,882.6
Commercial mortgage-backed securities		5,086.5		219.2		22.2		0.3		5,283.2
Collateralized debt obligations (2)		3,569.6		7.3		10.6		—		3,566.3
Other debt obligations		6,942.3		162.1		23.8		0.1		7,080.5
Total fixed maturities, available-for-sale	$	70,811.1	$	6,106.5	$	344.2	$	16.3	$	76,557.1

			Gross		Gross		Allowance
	Amortized		unrealized		unrealized		for credit
	cost (1)		gains		losses		loss		Fair value
		(in millions)
December 31, 2020
Fixed maturities, available-for-sale:
U.S. government and agencies	$	1,893.1	$	228.9	$	10.5	$	—	$	2,111.5
Non-U.S. governments		881.6		192.1		—		—		1,073.7
States and political subdivisions		8,004.9		1,175.5		12.6		—		9,167.8
Corporate		41,289.9		6,160.9		95.1		0.9		47,354.8
Residential mortgage-backed pass-through securities		2,857.6		129.4		0.2		—		2,986.8
Commercial mortgage-backed securities		4,741.2		241.3		35.9		4.3		4,942.3
Collateralized debt obligations (2)		4,045.9		8.7		24.9		2.2		4,027.5
Other debt obligations		6,832.6		243.2		29.9		—		7,045.9
Total fixed maturities, available-for-sale	$	70,546.8	$	8,380.0	$	209.1	$	7.4	$	78,710.3

(1) Amortized cost excludes accrued interest receivable of $570.1 million and $552.5 million as of September 30, 2021 and December 31, 2020, respectively.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

The amortized cost and fair value of fixed maturities, available-for-sale as of September 30, 2021, by expected maturity, were as follows:

	Amortized cost		Fair value
	(in millions)
Due in one year or less	$	2,216.3	$	2,245.6
Due after one year through five years		10,723.2		11,323.9
Due after five years through ten years		14,142.4		15,275.6
Due after ten years		25,314.6		28,899.4
Subtotal		52,396.5		57,744.5
Mortgage-backed and other asset-backed securities		18,414.6		18,812.6
Total	$	70,811.1	$	76,557.1

20

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Actual maturities may differ because borrowers may have the right to call or prepay obligations. Our portfolio is diversified by industry, issuer and asset class. Credit concentrations are managed to established limits.

Net Realized Capital Gains and Losses

Net realized capital gains and losses on sales of investments are determined on the basis of specific identification. In general, in addition to realized capital gains and losses on investment sales and periodic settlements on derivatives not designated as hedges, we report gains and losses related to the following in net realized capital gains (losses) on the consolidated statements of operations: mark-to-market adjustments on certain equity securities, mark-to-market adjustments on certain fixed maturities, trading, mark-to-market adjustments on sponsored investment funds, mark-to-market adjustments on derivatives not designated as hedges, cash flow hedge gains (losses) when the hedged item impacts realized capital gains (losses), changes in the valuation allowance for fixed maturities available-for-sale and certain financing receivables, impairments of real estate held for investment and impairments on equity method investments. Investment gains and losses on sales of certain real estate held for sale due to investment strategy and mark-to-market adjustments on certain securities carried at fair value with an investment objective to realize economic value through mark-to-market changes are reported as net investment income and are excluded from net realized capital gains (losses). The major components of net realized capital gains (losses) on investments were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Fixed maturities, available-for-sale:
Gross gains	$	13.0	$	22.3	$	61.2	$	128.6
Gross losses		(0.9)		(12.8)		(29.0)		(38.6)
Net credit losses		(9.6)		(9.1)		(27.4)		(25.3)
Hedging, net (1)		—		(0.2)		(1.0)		(9.8)
Fixed maturities, trading (2)		(4.0)		(1.5)		(28.7)		7.2
Equity securities (3)		31.2		52.8		85.5		28.4
Mortgage loans		2.6		(0.3)		14.2		(15.3)
Derivatives (1)		(173.7)		(42.5)		(153.9)		52.3
Other		(10.6)		56.8		37.4		42.0
Net realized capital gains (losses)	$	(152.0)	$	65.5	$	(41.7)	$	169.5

(1) The change in fair value of fixed maturities, available-for-sale and the change in fair value of derivative hedging instruments in fair value hedging relationships are reported in net investment income with the earnings effect of fixed maturities, available-for-sale. Gains (losses) for fixed maturities, available-for-sale related to terminated cash flow hedges continue to be reflected in net realized capital gains (losses).

(2) Unrealized gains (losses) on fixed maturities, trading still held at the reporting date were $(4.1) million and $(1.5) million for the three months ended September 30, 2021 and 2020, respectively, and $(27.6) million and $8.7 million for the nine months ended September 30, 2021 and 2020, respectively.

(3) Unrealized gains (losses) on equity securities still held at the reporting date were $21.5 million and $48.0 million for the three months ended September 30, 2021 and 2020, respectively, and $54.0 million and $30.0 million for the nine months ended September 30, 2021 and 2020, respectively. This excludes $3.7 million and $2.7 million for the three months ended September 30, 2021 and 2020, respectively, and $9.6 million and $13.2 million for the nine months ended September 30, 2021 and 2020, respectively, of unrealized gains on equity securities still held at the reporting date that were reported in net investment income.

Proceeds from sales of investments (excluding call and maturity proceeds) in fixed maturities, available-for-sale were $273.6 million and $628.6 million for the three months ended September 30, 2021 and 2020, and $1,870.7 million and $2,176.2 million for the nine months ended September 30, 2021 and 2020, respectively.

21

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Allowance for Credit Loss

We have a process in place to identify fixed maturity securities that could potentially require an allowance for credit loss. This process involves monitoring market events that could impact issuers’ credit ratings, business climate, management changes, litigation and government actions and other similar factors. This process also involves monitoring late payments, pricing levels, downgrades by rating agencies, key financial ratios, financial statements, revenue forecasts and cash flow projections as indicators of credit issues.

Each reporting period, all securities in an unrealized loss position are reviewed to determine whether a decline in value is due to credit. Relevant facts and circumstances considered include: (1) the extent the fair value is below cost; (2) the reasons for the decline in value; (3) the financial position and access to capital of the issuer, including the current and future impact of any specific events and (4) for structured securities, the adequacy of the expected cash flows. To the extent we determine an unrealized loss is due to credit, an allowance for credit loss is recognized through a reduction to net income.

We estimate the amount of the allowance for credit loss as the difference between amortized cost and the present value of the expected cash flows of the security. The present value is determined using the best estimate cash flows discounted at the effective interest rate implicit to the security at the date of purchase or the current yield to accrete an asset-backed or floating rate security. The methodology and assumptions for establishing the best estimate cash flows vary depending on the type of security. The ABS cash flow estimates are based on security specific facts and circumstances that may include collateral characteristics, expectations of delinquency and default rates, loss severity and prepayment speeds and structural support, including subordination and guarantees. The corporate security cash flow estimates are derived from scenario-based outcomes of expected corporate restructurings or liquidations using bond specific facts and circumstances including timing, security interests and loss severity. We do not measure a credit loss allowance on accrued interest receivable because we write off the accrued interest receivable balance to net investment income in a timely manner when we have concern regarding collectability.

Amounts on fixed maturities, available-for-sale deemed to be uncollectible are written off and removed from the allowance for credit loss. A write-off may also occur if we intend to sell a security or whether it is more likely than not we will be required to sell the security before the recovery of its amortized cost which, in some cases, may extend to maturity.

A rollforward of the allowance for credit loss by major security type was as follows.

	For the three months ended September 30, 2021
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance	$	—	$	—	$	—	$	8.5	$	—	$	0.2	$	—	$	—	$	8.7
Additions for credit losses not previously recorded		—		—		—		7.8		—		0.1		—		0.1		8.0
Foreign currency translation adjustment		—		—		—		(0.4)		—		—		—		—		(0.4)
Ending balance	$	—	$	—	$	—	$	15.9	$	—	$	0.3	$	—	$	0.1	$	16.3

22

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the three months ended September 30, 2020
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance	$	—	$	—	$	—	$	2.8	$	—	$	3.4	$	1.0	$	—	$	7.2
Additions for credit losses not previously recorded		—		—		—		3.4		—		1.2		—		—		4.6
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		—		—		—		—		—		1.0		0.9		—		1.9
Write-offs charged against allowance		—		—		—		—		—		(1.6)		—		—		(1.6)
Ending balance	$	—	$	—	$	—	$	6.2	$	—	$	4.0	$	1.9	$	—	$	12.1

	For the nine months ended September 30, 2021
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance	$	—	$	—	$	—	$	0.9	$	—	$	4.3	$	2.2	$	—	$	7.4
Additions for credit losses not previously recorded		—		—		—		15.4		—		0.4		—		0.1		15.9
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		—		—		—		—		—		2.4		0.4		—		2.8
Write-offs charged against allowance		—		—		—		—		—		(6.8)		(2.6)		—		(9.4)
Foreign currency translation adjustment		—		—		—		(0.4)		—		—		—		—		(0.4)
Ending balance	$	—	$	—	$	—	$	15.9	$	—	$	0.3	$	—	$	0.1	$	16.3
Accrued interest written off to net investment income	$	—	$	—	$	—	$	0.2	$	—	$	—	$	—	$	—	$	0.2

23

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the nine months ended September 30, 2020
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance (2)	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Additions for credit losses not previously recorded		—		—		—		13.2		—		2.9		0.1		0.1		16.3
Reductions for securities sold during the period		—		—		—		(7.0)		—		—		—		—		(7.0)
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		—		—		—		—		—		2.7		1.8		(0.1)		4.4
Write-offs charged against allowance		—		—		—		—		—		(1.6)		—		—		(1.6)
Ending balance	$	—	$	—	$	—	$	6.2	$	—	$	4.0	$	1.9	$	—	$	12.1

(1) Primarily consists of collateralized loan obligations backed by secured corporate loans.

(2) The allowance for credit loss associated with fixed maturities, available-for-sale was applied prospectively upon adoption of authoritative guidance effective January 1, 2020.

We did not write off any accrued interest to net investment income during the three months ended September 30, 2021 or during 2020.

Available-for-Sale Securities in Unrealized Loss Positions Without an Allowance for Credit Loss

For available-for-sale securities with unrealized losses for which an allowance for credit loss has not been recorded, the gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position were as follows:

	September 30, 2021
	Less than				Greater than or
	twelve months				equal to twelve months				Total
			Gross				Gross				Gross
	Fair		unrealized		Fair		unrealized		Fair		unrealized
	value		losses		value		losses		value		losses
	(in millions)
Fixed maturities, available-for-sale (1):
U.S. government and agencies	$	400.1	$	14.9	$	150.8	$	25.7	$	550.9	$	40.6
Non-U.S. governments		47.7		0.8		—		—		47.7		0.8
States and political subdivisions		632.3		10.9		245.1		15.9		877.4		26.8
Corporate		4,287.4		141.3		448.6		48.6		4,736.0		189.9
Residential mortgage-backed pass-through securities		1,229.4		15.9		21.8		0.6		1,251.2		16.5
Commercial mortgage-backed securities		480.6		4.9		321.6		14.1		802.2		19.0
Collateralized debt obligations (2)		1,235.9		2.9		461.3		7.7		1,697.2		10.6
Other debt obligations		2,334.4		17.3		177.4		6.5		2,511.8		23.8
Total fixed maturities, available-for-sale	$	10,647.8	$	208.9	$	1,826.6	$	119.1	$	12,474.4	$	328.0

(1) Fair value and gross unrealized losses are excluded for available-for-sale securities for which an allowance for credit loss has been recorded.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

24

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Of the total amounts, Principal Life Insurance Company’s (“Principal Life”) consolidated portfolio represented $10,793.0 million in available-for-sale fixed maturities with gross unrealized losses of $231.9 million. Of the available-for-sale fixed maturities within Principal Life’s consolidated portfolio in a gross unrealized loss position, 91% were investment grade (rated AAA through BBB-) with an average price of 98 (carrying value/amortized cost) as of September 30, 2021. Gross unrealized losses in our fixed maturities portfolio increased during the nine months ended September 30, 2021, primarily due to an increase in interest rates, partially offset by tightening of credit spreads.

For those securities that had been in a continuous unrealized loss position for less than twelve months, Principal Life's consolidated portfolio held 1,400 securities with a carrying value of $9,056.8 million and unrealized losses of $136.9 million reflecting an average price of 99 as of September 30, 2021. Of this portfolio, 91% was investment grade (rated AAA through BBB-) as of September 30, 2021, with associated unrealized losses of $124.8 million. The unrealized losses on these securities can primarily be attributed to changes in market interest rates and changes in credit spreads since the securities were acquired.

For those securities that had been in a continuous unrealized loss position greater than or equal to twelve months, Principal Life’s consolidated portfolio held 280 securities with a carrying value of $1,736.2 million and unrealized losses of $95.0 million as of September 30, 2021. The average credit rating of this portfolio was AA- with an average price of 95 as of September 30, 2021. Of the $95.0 million in unrealized losses, the corporate sector accounts for $25.5 million in unrealized losses with an average price of 94 and an average credit rating of BBB-. Furthermore, unrealized losses include $13.8 million within the commercial mortgage-backed security sector with an average of price of 96 and an average credit rating of AAA and $7.7 million within the collateralized debt obligation sector with an average price of 98 and an average credit rating of AA+. The unrealized losses on these securities can primarily be attributed to changes in market interest rates and changes in credit spreads since the securities were acquired.

Because we expected to recover our amortized cost, we did not record an allowance for credit loss on these securities as of September 30, 2021. Because it was not our intent to sell the fixed maturity available-for-sale securities with unrealized losses and it was not more likely than not that we would be required to sell these securities before recovery of the amortized cost, which may be at maturity, we did not write down these investments to fair value.

	December 31, 2020
	Less than				Greater than or
	twelve months				equal to twelve months				Total
			Gross				Gross				Gross
	Fair		unrealized		Fair		unrealized		Fair		unrealized
	value		losses		value		losses		value		losses
	(in millions)
Fixed maturities, available-for-sale (1):
U.S. government and agencies	$	351.1	$	10.4	$	—	$	—	$	351.1	$	10.4
States and political subdivisions		363.5		12.5		—		—		363.5		12.5
Corporate		1,578.7		54.4		267.9		40.6		1,846.6		95.0
Residential mortgage-backed pass-through securities		92.3		0.2		1.6		—		93.9		0.2
Commercial mortgage-backed securities		970.9		22.1		137.4		12.2		1,108.3		34.3
Collateralized debt obligations (2)		1,750.6		11.1		931.1		12.9		2,681.7		24.0
Other debt obligations		802.3		28.1		61.1		1.7		863.4		29.8
Total fixed maturities, available-for-sale	$	5,909.4	$	138.8	$	1,399.1	$	67.4	$	7,308.5	$	206.2

(1) Fair value and gross unrealized losses are excluded for available-for-sale securities for which an allowance for credit loss has been recorded.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

25

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Of the total amounts, Principal Life’s consolidated portfolio represented $7,029.6 million in available-for-sale fixed maturities with gross unrealized losses of $173.9 million. Of the available-for-sale fixed maturities within Principal Life’s consolidated portfolio in a gross unrealized loss position, 89% were investment grade (rated AAA through BBB-) with an average price of 98 (carrying value/amortized cost) as of December 31, 2020. Gross unrealized losses in our fixed maturities portfolio increased during the year ended December 31, 2020, primarily due to widening of credit spreads, partially offset by a decrease in interest rates.

For those securities that had been in a continuous unrealized loss position for less than twelve months, Principal Life’s consolidated portfolio held 619 securities with a carrying value of $5,638.3 million and unrealized losses of $122.4 million reflecting an average price of 98 as of December 31, 2020. Of this portfolio, 89% was investment grade (rated AAA through BBB-) as of December 31, 2020, with associated unrealized losses of $98.4 million. The unrealized losses on these securities can primarily be attributed to changes in market interest rates and changes in credit spreads since the securities were acquired.

For those securities that had been in a continuous unrealized loss position greater than or equal to twelve months, Principal Life’s consolidated portfolio held 198 securities with a carrying value of $1,391.3 million and unrealized losses of $51.5 million as of December 31, 2020. The average credit rating of this portfolio was AA- with an average price of 96 as of December 31, 2020. Of the $51.5 million in unrealized losses, the corporate sector accounts for $24.9 million in unrealized losses with an average price of 92 and an average credit rating of BB+. Furthermore, unrealized losses include $12.9 million within the collateralized debt obligation sector with an average price of 99 and an average credit rating of AA+ and $11.9 million within commercial mortgage-backed security sector with an average of price of 92 and an average credit rating of AA+. The unrealized losses on these securities can primarily be attributed to changes in market interest rates and changes in credit spreads since the securities were acquired.

Because we expected to recover our amortized cost, we did not record an allowance for credit loss on these securities as of December 31, 2020. Because it was not our intent to sell the fixed maturity available-for-sale securities with unrealized losses and it was not more likely than not that we would be required to sell these securities before recovery of the amortized cost, which may be at maturity, we did not write down these investments to fair value.

Net Unrealized Gains and Losses on Available-for-Sale Securities and Derivative Instruments

The net unrealized gains and losses on investments in available-for-sale securities and the net unrealized gains and losses on derivative instruments in cash flow hedge relationships are reported as separate components of stockholders’ equity. The cumulative amount of net unrealized gains and losses on available-for-sale securities and derivative instruments in cash flow hedge relationships net of adjustments related to DAC and related actuarial balances, policyholder liabilities, noncontrolling interest and applicable income taxes was as follows:

	September 30, 2021		December 31, 2020
	(in millions)
Net unrealized gains on fixed maturities, available-for-sale (1)	$	5,749.7	$	8,193.0
Net unrealized gains on derivative instruments		79.6		38.9
Adjustments for assumed changes in amortization patterns		(316.5)		(437.3)
Adjustments for assumed changes in policyholder liabilities		(1,029.2)		(2,603.9)
Net unrealized gains on other investments and noncontrolling interest adjustments		55.9		78.0
Provision for deferred income taxes		(956.7)		(1,112.2)
Net unrealized gains on available-for-sale securities and derivative instruments	$	3,582.8	$	4,156.5

(1) Excludes net unrealized gains (losses) on fixed maturities, available-for-sale included in fair value hedging relationships.

26

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Financing Receivables

Mortgage Loans

Mortgage loans consist of commercial and residential mortgage loans. Our commercial mortgage loan portfolio consists primarily of non-recourse, fixed rate mortgages on stabilized properties. Our residential mortgage loan portfolio is composed of first lien and home equity mortgages concentrated in Chile and the United States.

Commercial and residential mortgage loans are generally reported at cost adjusted for amortization of premiums and accrual of discounts, computed using the interest method and net of valuation allowances. Amortized cost excludes accrued interest receivable. Interest income is accrued on the principal amount of the loan based on the loan’s contractual interest rate. Interest income, as well as prepayment of fees and the amortization of the related premium or discount, is reported in net investment income on the consolidated statements of operations. Accrued interest receivable is reported in accrued investment income on the consolidated statements of financial position. Any changes in the loan valuation allowances are reported in net realized capital gains (losses) on the consolidated statements of operations. Further details relating to our valuation allowance are included under the caption “Financing Receivables Valuation Allowance.”

Direct Financing Leases

Our direct financing leases are concentrated in Chile. Our Chilean operations enter into private placement contracts for commercial, industrial and office space properties whereby our Chilean operations purchase the real estate and/or building from the seller-lessee but then lease the property back to the seller-lessee. Ownership of the property is transferred to the lessee by the end of the lease term. Direct financing leases are reported as a component of other investments in the consolidated statements of financial position.

Reinsurance Recoverables

Our reinsurance recoverables include amounts due from reinsurers for paid or unpaid claims, claims incurred but not reported or policy benefits. We cede life, disability, medical and long-term care insurance to other insurance companies through reinsurance. Reinsurance recoverables are reported with premiums due and other receivables in the consolidated statements of financial position.

27

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Credit Quality Information for Financing Receivables

The amortized cost of our financing receivables by credit risk and vintage was as follows:

	As of September 30, 2021
	2021		2020		2019		2018		2017		Prior		Total
		(in millions)
Commercial mortgage loans:
A- and above	$	1,852.4	$	1,812.6	$	2,447.0	$	2,411.6	$	1,623.0	$	4,504.4	$	14,651.0
BBB+ thru BBB-		233.1		296.9		294.0		160.5		183.3		384.8		1,552.6
BB+ thru BB-		23.8		5.4		—		—		—		56.1		85.3
B+ and below		—		—		—		9.0		—		34.7		43.7
Total	$	2,109.3	$	2,114.9	$	2,741.0	$	2,581.1	$	1,806.3	$	4,980.0	$	16,332.6
Direct financing leases:
A- and above	$	—	$	44.1	$	1.4	$	40.3	$	17.1	$	255.0	$	357.9
BBB+ thru BBB-		25.1		59.4		22.7		18.3		16.0		53.1		194.6
BB+ thru BB-		51.6		13.8		1.9		—		—		2.1		69.4
B+ and below		1.5		—		—		—		—		—		1.5
Total	$	78.2	$	117.3	$	26.0	$	58.6	$	33.1	$	310.2	$	623.4
Residential mortgage loans:
Performing	$	1,665.2	$	585.2	$	181.5	$	101.5	$	117.5	$	470.3	$	3,121.2
Non-performing		0.7		1.8		1.3		0.6		0.8		4.0		9.2
Total	$	1,665.9	$	587.0	$	182.8	$	102.1	$	118.3	$	474.3	$	3,130.4
Reinsurance recoverables													$	1,122.7

28

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	As of December 31, 2020
	2020		2019		2018		2017		2016		Prior		Total
	(in millions)
Commercial mortgage loans:
A- and above	$	1,807.6	$	2,486.8	$	2,464.7	$	1,780.8	$	1,417.8	$	3,697.0	$	13,654.7
BBB+ thru BBB-		149.1		194.1		352.5		262.7		75.8		499.7		1,533.9
BB+ thru BB-		23.7		69.0		—		—		9.1		43.9		145.7
B+ and below		39.4		20.0		—		5.8		6.6		35.5		107.3
Total	$	2,019.8	$	2,769.9	$	2,817.2	$	2,049.3	$	1,509.3	$	4,276.1	$	15,441.6
Direct financing leases:
A- and above	$	43.9	$	1.6	$	42.6	$	19.2	$	15.3	$	202.9	$	325.5
BBB+ thru BBB-		94.9		5.5		11.3		18.4		3.0		35.5		168.6
BB+ thru BB-		13.3		—		—		—		—		1.9		15.2
B+ and below		57.6		22.5		11.9		—		1.0		108.5		201.5
Total	$	209.7	$	29.6	$	65.8	$	37.6	$	19.3	$	348.8	$	710.8
Residential mortgage loans:
Performing	$	699.1	$	336.7	$	167.0	$	165.1	$	167.6	$	398.7	$	1,934.2
Non-performing		—		2.0		0.8		1.4		0.4		12.7		17.3
Total	$	699.1	$	338.7	$	167.8	$	166.5	$	168.0	$	411.4	$	1,951.5
Reinsurance recoverables													$	1,098.0

The amortized cost of commercial mortgage loans, direct financing leases and residential mortgage loans excluded accrued interest receivable of $59.3 million, $1.1 million and $16.5 million, respectively, as of September 30, 2021. The amortized cost of commercial mortgage loans, direct financing leases and residential mortgage loans excluded accrued interest receivable of $60.0 million, $0.5 million and $2.0 million, respectively, as of December 31, 2020.

Financing Receivables Credit Monitoring

Commercial Mortgage Loan Credit Risk Profile Based on Internal Rating

We actively monitor and manage our commercial mortgage loan and direct financing lease portfolios. All commercial mortgage loans and direct financing leases are analyzed regularly and substantially all are internally rated, based on a proprietary risk rating cash flow model, in order to monitor the financial quality of these assets. The models stress expected cash flows at various levels and at different points in time depending on the durability of the income stream, which includes our assessment of factors such as location (macro and micro markets), tenant quality and lease expirations. Our internal rating analysis presents expected losses in terms of an S&P Global (“S&P”) bond equivalent rating for domestic commercial mortgage loans and Feller rate equivalent for Chilean commercial mortgage loans and direct financing leases. As the credit risk for commercial mortgage loans and direct financing leases increases, we adjust our internal ratings downward with loans in the category “B+ and below” having the highest risk for credit loss. Internal ratings on commercial mortgage loans and direct financing leases are updated at least annually and potentially more often for certain investments with material changes in collateral value or occupancy and for investments on an internal “watch list”.

Commercial mortgage loans and direct financing leases that require more frequent and detailed attention are identified and placed on an internal “watch list”. Among the criteria that may indicate a potential problem are significant negative changes in ratios of loan to value or contract rents to debt service, major tenant vacancies or bankruptcies, borrower sponsorship problems, late payments, delinquent taxes and loan relief/restructuring requests.

29

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Residential Mortgage Loan Credit Risk Profile Based on Performance Status

Our residential mortgage loan portfolio is monitored based on performance of the loans. Monitoring on a residential mortgage loan increases when the loan is delinquent or earlier if there is an indication of potential impairment. We define non-performing domestic residential mortgage loans as loans 90 days or greater delinquent or on non-accrual status. We define non-performing residential first lien mortgages in the Chilean market as loans that have missed a specified number of coupon payments based on the nature of the loans and collection practices in that market.

Non-Accrual Financing Receivables

Financing receivables are placed on non-accrual status if we have concern regarding the collectability of future payments or if a financing receivable has matured without being paid off or extended. Factors considered may include conversations with the borrower, loss of major tenant, bankruptcy of borrower or major tenant, decreased property cash flow for commercial mortgage loans and direct financing leases or number of days past due and other circumstances for residential mortgage loans. Based on an assessment as to the collectability of the principal, a determination is made to apply any payments received either against the principal, against the valuation allowance or according to the contractual terms. When a financing receivable is placed on non-accrual status, the accrued unpaid interest receivable is reversed against interest income. Accrual of interest resumes after factors resulting in doubts about collectability have improved. Financing receivables in the Chilean market are carried on accrual for a longer period of delinquency than domestic financing receivables, as assessment of collectability is based on the nature of the financing receivables and collection practices in that market.

The amortized cost of financing receivables on non-accrual status was as follows:

		September 30, 2021
					Amortized cost
	Beginning		Ending		of nonaccrual
	amortized cost		amortized cost		assets without
	on nonaccrual		on nonaccrual		a valuation
	status		status		allowance
		(in millions)
Commercial mortgage loans	$	10.7	$	4.6	$	—
Residential mortgage loans		10.8		6.2		0.7
Total	$	21.5	$	10.8	$	0.7

	December 31, 2020
					Amortized cost
	Beginning		Ending		of nonaccrual
	amortized cost		amortized cost		assets without
	on nonaccrual		on nonaccrual		a valuation
	status		status		allowance
		(in millions)
Commercial mortgage loans	$	5.0	$	10.7	$	—
Residential mortgage loans		6.8		10.8		0.7
Total	$	11.8	$	21.5	$	0.7

No interest income was recognized on non-accrual financing receivables during 2021 and 2020.

30

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

The aging of our financing receivables, based on amortized cost, was as follows:

	September 30, 2021
													Amortized
													cost
					90 days or								90 days or
	30-59 days		60-89 days		more past		Total past						more and
	past due		past due		due		due		Current		Total (1)		accruing
	(in millions)
Commercial mortgage loans	$	5.3	$	0.1	$	7.3	$	12.7	$	16,319.9	$	16,332.6	$	2.7
Direct financing leases		—		—		3.6		3.6		619.8		623.4		3.6
Residential mortgage loans		34.8		7.4		7.4		49.6		3,080.8		3,130.4		3.0
Total	$	40.1	$	7.5	$	18.3	$	65.9	$	20,020.5	$	20,086.4	$	9.3

	December 31, 2020
													Amortized
													cost
					90 days or								90 days or
	30-59 days		60-89 days		more past		Total past						more and
	past due		past due		due		due		Current		Total (1)		accruing
	(in millions)
Commercial mortgage loans	$	42.1	$	9.2	$	12.0	$	63.3	$	15,378.3	$	15,441.6	$	1.3
Direct financing leases		—		3.2		—		3.2		707.6		710.8		—
Residential mortgage loans		66.6		8.8		10.9		86.3		1,865.2		1,951.5		6.5
Total	$	108.7	$	21.2	$	22.9	$	152.8	$	17,951.1	$	18,103.9	$	7.8

(1) As of both September 30, 2021 and December 31, 2020, no reinsurance recoverables were considered past due.

Financing Receivables Valuation Allowance

We establish a valuation allowance to provide for the risk of credit losses inherent in our financing receivables. The valuation allowance is maintained at a level believed adequate by management to absorb estimated expected credit losses. The valuation allowance is based on amortized cost excluding accrued interest receivable and includes reserves for pools of financing receivables with similar risk characteristics. We do not measure a credit loss allowance on accrued interest receivable because we write off the uncollectible accrued interest receivable balance to net investment income in a timely manner, generally within 90 days domestically or, in the Chilean market, based on the nature of the loans and collection practices in that market. During 2021 and 2020, we did not write off any commercial mortgage loan accrued interest receivable or residential mortgage loan accrued interest receivable.

For commercial and residential mortgage loans and direct financing leases, management’s periodic evaluation and assessment of the valuation allowance adequacy is based on known and inherent risks in the portfolio, adverse situations that may affect a borrower's ability to repay, the estimated value of the underlying collateral, composition of the portfolio, portfolio delinquency information, underwriting standards, peer group information, current and forecasted economic conditions, loss experience and other relevant factors. For reinsurance recoverables, management’s periodic evaluation and assessment of the valuation allowance adequacy is based on known and inherent risks, adverse situations that may affect a reinsurer’s ability to repay, current and forecasted economic conditions, industry loss experience and other relevant factors.

31

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Our commercial mortgage loans and direct financing leases are pooled by risk rating level with an estimated loss ratio applied against each risk rating level. The loss ratio is generally based upon historical loss experience for each risk rating level as adjusted for certain current and forecasted environmental factors management believes to be relevant. Environmental factors are forecasted for two years or less with immediate reversion to historical experience. The allowance for direct financing leases is also adjusted for the residual value of the leased assets. A commercial mortgage loan or direct financing lease is evaluated individually if it does not continue to share similar risk characteristics of a pool. We analyze the need for an individual evaluation for any domestic commercial mortgage loan that is delinquent for 60 days or more, in process of foreclosure, restructured, on the internal “watch list” or that currently is evaluated individually. We analyze the need for an individual evaluation for any Chilean commercial mortgage loan or direct financing lease that is considered past due based on collection practices in the Chilean market and the nature of the loan or lease.

We estimate expected credit losses for certain commercial mortgage loan or direct financing lease commitments where we have a contractual obligation to extend credit. The expected credit losses are estimated based on the commercial mortgage loan or direct financing lease valuation allowance process described previously, adjusted for probability of funding. The estimated expected credit losses for commercial mortgage loan and direct financing lease commitments are reported in other liabilities on the consolidated statements of financial position. The change in the credit loss liability for commitments is included in net realized capital gains (losses) on the consolidated statements of operations. Once funded, expected credit losses for commercial mortgage loans or direct financing leases are included within the commercial mortgage loan or direct financing lease valuation allowance described previously.

We evaluate residential mortgage loans based on aggregated risk factors and historical loss experience by pool type. We adjust these quantitative factors for qualitative factors of present and forecasted conditions. Qualitative factors include items such as economic and business conditions, changes in the portfolio, value of underlying collateral and concentrations. A residential mortgage loan is evaluated individually if it does not continue to share similar risk characteristics of a pool. We analyze the need for an individual evaluation for any domestic residential mortgage loan that is delinquent for 60 days or more, in process of foreclosure, restructured, on the internal “watch list” or that currently is evaluated individually. We analyze the need for an individual evaluation for any Chilean residential mortgage loan that is considered past due based on collection practices in the Chilean market and the nature of the loan.

As discussed previously, commercial and residential mortgage loans and direct financing leases are evaluated individually if the asset does not continue to share similar risk characteristics of a pool. When we determine a commercial or residential mortgage loan is probable of foreclosure, a valuation allowance is established equal to the difference between the carrying amount of the mortgage loan and the estimated value of the collateral reduced by the cost to sell. For certain commercial mortgage loans where repayment is expected to be provided substantially through the operation or sale of the collateral and the borrower is experiencing financial difficulty, we elect to establish a valuation allowance equal to the difference between the carrying amount of the mortgage loan and the estimated value of the real estate collateral, which may be reduced by the cost to sell. Estimated value may also be based on either the present value of the expected future cash flows discounted at the asset’s effective interest rate or the asset’s observable market price. Subsequent changes in the estimated value are reflected in the valuation allowance. Amounts on financing receivables deemed to be uncollectible are charged off and removed from the valuation allowance. The change in the valuation allowance for loans and direct financing leases is included in net realized capital gains (losses) on the consolidated statements of operations.

32

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Our reinsurance recoverables are pooled by reinsurer risk rating with an estimated loss ratio applied against each risk rating level. The loss ratio is generally based upon industry historical loss experience and expected recovery timing as adjusted for certain current and forecasted environmental factors management believes to be relevant. Environmental factors are forecasted for five years or less with immediate reversion to industry historical experience. A reinsurance recoverable is evaluated individually if it does not continue to share similar risk characteristics of a pool. We analyze the need for an individual evaluation for any reinsurance recoverable based on past due payments and changes in reinsurer risk ratings. The change in the valuation allowance for reinsurance recoverables is included in benefits, claims and settlement expenses on the consolidated statements of operations.

A rollforward of our valuation allowance was as follows:

	For the three months ended September 30, 2021
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance	$	36.6	$	0.3	$	3.2	$	2.6	$	42.7
Provision (1)		(2.1)		—		(1.4)		0.1		(3.4)
Charge-offs		—		—		(0.2)		—		(0.2)
Recoveries		—		—		1.0		—		1.0
Foreign currency translation adjustment		(0.1)		—		—		—		(0.1)
Ending balance	$	34.4	$	0.3	$	2.6	$	2.7	$	40.0

	For the three months ended September 30, 2020
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance	$	40.4	$	0.2	$	5.6	$	2.5	$	48.7
Provision		1.7		(0.1)		(0.3)		0.1		1.4
Charge-offs		—		—		(0.1)		—		(0.1)
Recoveries		—		—		0.6		—		0.6
Ending balance	$	42.1	$	0.1	$	5.8	$	2.6	$	50.6

33

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the nine months ended September 30, 2021
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance	$	43.2	$	0.1	$	6.9	$	2.7	$	52.9
Provision (1)		(8.6)		0.2		(6.5)		—		(14.9)
Charge-offs		—		—		(0.5)		—		(0.5)
Recoveries		—		—		2.7		—		2.7
Foreign currency translation adjustment		(0.2)		—		—		—		(0.2)
Ending balance	$	34.4	$	0.3	$	2.6	$	2.7	$	40.0

	For the nine months ended September 30, 2020
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance (2)	$	27.3	$	—	$	3.3	$	2.5	$	33.1
Provision (3)		14.8		0.1		1.0		0.1		16.0
Charge-offs		—		—		(0.3)		—		(0.3)
Recoveries		—		—		1.8		—		1.8
Ending balance	$	42.1	$	0.1	$	5.8	$	2.6	$	50.6

(1) During the three and nine months ended September 30, 2021, certain valuation allowances for commercial and residential mortgage loans were released. This release was a result of further adjustments to our current and forecasted environmental factors management believed to be relevant as global economic activity improved from previously adverse impacts due to COVID-19.

(2) Upon adoption of authoritative guidance effective January 1, 2020, we updated accounting policies and methodology, adjusted the commercial and residential mortgage loan valuation allowance and established a valuation allowance for reinsurance recoverables. See Note 1, Nature of Operations and Significant Accounting Policies under the caption, “Recent Accounting Pronouncements” for further details.

(3) During the nine months ended September 30, 2020, COVID-19 adversely impacted global economic activity and contributed to significant volatility in financial markets. As a result, certain current and forecasted environmental factors management believed to be relevant were adjusted, resulting in an increase in the valuation allowance for commercial and residential mortgage loans and direct financing leases.

Mortgage Loans

We periodically purchase mortgage loans as well as sell mortgage loans we have originated. Mortgage loans purchased and sold were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Commercial mortgage loans:
Purchased	$	1.5	$	65.0	$	106.3	$	151.3
Sold		—		3.3		66.3		4.4
Residential mortgage loans:
Purchased (1)		1,142.0		242.0		1,955.0		736.5
Sold		29.5		24.6		73.1		98.0

(1) Includes mortgage loans purchased by residential mortgage loan VIEs established in 2021.

34

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Our commercial mortgage loan portfolio is diversified by geographic region and specific collateral property type as follows:

	September 30, 2021				December 31, 2020
	Amortized		Percent		Amortized		Percent
	cost		of total		cost		of total
	($ in millions)
Geographic distribution
New England	$	588.4	3.6	%	$	593.9	3.8	%
Middle Atlantic		4,508.0	27.5			4,438.2	28.8
East North Central		596.4	3.7			572.6	3.7
West North Central		290.4	1.8			267.5	1.7
South Atlantic		2,455.1	15.0			2,368.9	15.3
East South Central		374.9	2.3			316.6	2.1
West South Central		1,249.6	7.7			1,315.9	8.5
Mountain		1,006.9	6.2			936.2	6.1
Pacific		4,825.0	29.5			4,183.0	27.1
International		437.9	2.7			448.8	2.9
Total	$	16,332.6	100.0	%	$	15,441.6	100.0	%
Property type distribution
Office	$	4,839.0	29.7	%	$	4,491.7	29.0	%
Retail		1,689.7	10.3			1,815.3	11.8
Industrial		2,970.6	18.2			2,488.7	16.1
Apartments		6,059.0	37.1			5,958.0	38.6
Hotel		86.6	0.5			89.4	0.6
Mixed use/other		687.7	4.2			598.5	3.9
Total	$	16,332.6	100.0	%	$	15,441.6	100.0	%

Mortgage Loan Modifications

We assess COVID-19 related loan modifications to determine if they are in scope of the CARES Act TDR relief and the Interagency Statement guidance, which was effective in the second quarter of 2020. See Note 1, Nature of Operations and Significant Accounting Policies, under the caption “Investments” for further details. COVID-19 related loan modifications typically include delayed principal and interest payments. Based on the terms of the delayed principal and interest payments, past due status generally will not advance and loans generally will not be placed on non-accrual status during the delay. We did not have a significant amount of COVID-19 related loan modifications that were in scope of the CARES Act TDR relief or the Interagency Statement guidance for the three and nine months ended September 30, 2021 and 2020.

We assess loan modifications outside the scope of the CARES Act TDR relief or Interagency Statement guidance on a case-by-case basis to evaluate whether a TDR has occurred. When we have commercial mortgage loan TDRs, they are modified to delay or reduce principal payments and to reduce or delay interest payments. The commercial mortgage loan modifications result in delayed cash receipts, a decrease in interest income and loan rates that are considered below market. When we have residential mortgage loan TDRs, they include modifications of interest-only payment periods, delays in principal balloon payments and interest rate reductions. Residential mortgage loan modifications result in delayed or decreased cash receipts and a decrease in interest income.

When we have commercial mortgage loan TDRs, they are reserved for in the mortgage loan valuation allowance at the estimated fair value of the underlying collateral reduced by the cost to sell.

When we have residential mortgage loan TDRs, they are specifically reserved for in the mortgage loan valuation allowance if losses result from the modification. Residential mortgage loans that have defaulted or have been discharged through bankruptcy are reduced to the expected collectible amount.

35

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

We did not have any significant loans that were modified and met the criteria of a TDR for the three and nine months ended September 30, 2021 and 2020.

Securities Posted as Collateral

As of September 30, 2021 and December 31, 2020, we posted $5,010.7 million and $4,604.9 million, respectively, in commercial mortgage loans and residential first lien mortgages to satisfy collateral requirements associated with our obligation under funding agreements with Federal Home Loan Bank of Des Moines (“FHLB Des Moines”). In addition, as of September 30, 2021 and December 31, 2020, we posted $2,561.9 million and $2,563.9 million, respectively, in fixed maturities, available-for-sale and trading securities to satisfy collateral requirements primarily associated with a reinsurance arrangement, our derivative credit support annex (collateral) agreements, Futures Commission Merchant (“FCM”) agreements, a lending arrangement and our obligation under funding agreements with FHLB Des Moines. Since we did not relinquish ownership rights on these instruments, they are reported as mortgage loans, fixed maturities, available-for-sale and fixed maturities, trading, respectively, on our consolidated statements of financial position. Of the securities posted as collateral, as of September 30, 2021 and December 31, 2020, $227.7 million and $133.4 million, respectively, could be sold or repledged by the secured party.

Balance Sheet Offsetting

Financial assets subject to master netting agreements or similar agreements were as follows:

			Gross amounts not offset in the
			consolidated statements
			of financial position
	Gross amount
	of recognized		Financial		Collateral
	assets (1)		instruments (2)		received		Net amount
	(in millions)
September 30, 2021
Derivative assets	$	328.1	$	(112.1)	$	(208.1)	$	7.9
Reverse repurchase agreements		24.2		—		(24.2)		—
Total	$	352.3	$	(112.1)	$	(232.3)	$	7.9
December 31, 2020
Derivative assets	$	463.5	$	(132.5)	$	(293.5)	$	37.5
Reverse repurchase agreements		63.7		—		(63.7)		—
Total	$	527.2	$	(132.5)	$	(357.2)	$	37.5

(1) The gross amount of recognized derivative and reverse repurchase agreement assets are reported with other investments and cash and cash equivalents, respectively, on the consolidated statements of financial position. The gross amounts of derivative and reverse repurchase agreement assets are not netted against offsetting liabilities for presentation on the consolidated statements of financial position.

(2) Represents amount of offsetting derivative liabilities that are subject to an enforceable master netting agreement or similar agreement that are not netted against the gross derivative assets for presentation on the consolidated statements of financial position.

36

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Financial liabilities subject to master netting agreements or similar agreements were as follows:

			Gross amounts not offset in the
			consolidated statements
			of financial position
	Gross amount
	of recognized		Financial		Collateral
	liabilities (1)		instruments (2)		pledged		Net amount
	(in millions)
September 30, 2021
Derivative liabilities	$	242.2	$	(112.1)	$	(73.9)	$	56.2
December 31, 2020
Derivative liabilities	$	186.2	$	(132.5)	$	(45.7)	$	8.0

(1) The gross amount of recognized derivative liabilities is reported with other liabilities on the consolidated statements of financial position. The above excludes $356.1 million and $467.8 million of derivative liabilities as of September 30, 2021 and December 31, 2020, respectively, which are primarily embedded derivatives that are not subject to master netting agreements or similar agreements. The gross amounts of derivative liabilities are not netted against offsetting assets for presentation on the consolidated statements of financial position.

(2) Represents amount of offsetting derivative assets that are subject to an enforceable master netting agreement or similar agreement that are not netted against the gross derivative liabilities for presentation on the consolidated statements of financial position.

The financial instruments that are subject to master netting agreements or similar agreements include right of setoff provisions. Derivative instruments include provisions to setoff positions covered under the agreements with the same counterparties and provisions to setoff positions outside of the agreements with the same counterparties in the event of default by one of the parties. Derivative instruments also include collateral or variation margin provisions, which are generally settled daily with each counterparty. See Note 4, Derivative Financial Instruments, for further details.

Repurchase and reverse repurchase agreements include provisions to setoff other repurchase and reverse repurchase balances with the same counterparty. Repurchase and reverse repurchase agreements also include collateral provisions with the counterparties. For reverse repurchase agreements we require the counterparties to pledge collateral with a value greater than the amount of cash transferred. We have the right but do not sell or repledge collateral received in reverse repurchase agreements. Repurchase agreements are structured as secured borrowings for all counterparties. We pledge fixed maturities available-for-sale, which the counterparties have the right to sell or repledge. Interest incurred on repurchase agreements is reported as part of operating expenses on the consolidated statements of operations. Net proceeds related to repurchase agreements are reported as a component of financing activities on the consolidated statements of cash flows. We did not have any outstanding repurchase agreements as of September 30, 2021 and December 31, 2020.

4. Derivative Financial Instruments

Derivatives are generally used to hedge or reduce exposure to market risks associated with assets held or expected to be purchased or sold and liabilities incurred or expected to be incurred. Derivatives are used to change the characteristics of our asset/liability mix consistent with our risk management activities. Derivatives are also used in asset replication strategies.

Types of Derivative Instruments

Interest Rate Contracts

Interest rate risk is the risk we will incur economic losses due to adverse changes in interest rates. Sources of interest rate risk include the difference between the maturity and interest rate changes of assets with the liabilities they support, timing differences between the pricing of liabilities and the purchase or procurement of assets and changing cash flow profiles from original projections due to prepayment options embedded within asset and liability contracts. We use various derivatives to manage our exposure to fluctuations in interest rates.

37

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Interest rate swaps are contracts in which we agree with other parties to exchange, at specified intervals, the difference between fixed rate and/or floating rate interest amounts based upon designated market rates or rate indices and an agreed upon notional principal amount. Generally, no cash is exchanged at the outset of the contract and no principal payments are made by any party. Cash is paid or received based on the terms of the swap. We use interest rate swaps primarily to more closely match the interest rate characteristics of assets and liabilities and to mitigate the risks arising from timing mismatches between assets and liabilities (including duration mismatches). We also use interest rate swaps to hedge against changes in the value of assets we anticipate acquiring and other anticipated transactions and commitments. Interest rate swaps are used to hedge against changes in the value of the guaranteed minimum withdrawal benefit (“GMWB”) liability. The GMWB rider on our variable annuity products provides for guaranteed minimum withdrawal benefits regardless of the actual performance of various equity and/or fixed income funds available with the product.

Interest rate options, including interest rate caps and interest rate floors, which can be combined to form interest rate collars, are contracts that entitle the purchaser to pay or receive the amounts, if any, by which a specified market rate exceeds a cap strike interest rate, or falls below a floor strike interest rate, respectively, at specified dates. We use interest rate options to manage prepayment risks in our assets and minimum guaranteed interest rates and lapse risks in our liabilities.

A swaption is an option to enter into an interest rate swap at a future date. We have purchased swaptions to hedge interest rate exposure for certain assets and liabilities. Swaptions not only hedge against the downside risk, but also allow us to take advantage of any upside benefits.

In exchange-traded futures transactions, we agree to purchase or sell a specified number of contracts, the values of which are determined by the values of designated classes of securities, and to post variation margin on a daily basis in an amount equal to the difference in the daily market values of those contracts. We enter into exchange-traded futures with regulated futures commissions merchants who are members of a trading exchange. We have used exchange-traded futures to reduce market risks from changes in interest rates and to alter mismatches between the assets in a portfolio and the liabilities supported by those assets.

Interest rate forwards, including to be announced (“TBA”) forwards and treasury forwards, are contracts to take delivery of a fixed income security at a specified price at a future date. TBA forwards deliver government guaranteed mortgage-backed securities and treasury forwards deliver U.S. Treasury bonds. At inception of these forward contracts we do not intend to take physical delivery. We have used TBA forwards to gain exposure to the investment risk and return of agency mortgage-backed security pools in order to reduce asset and liability duration mismatch. Treasury forwards are used to hedge against changes in the value of the GMWB liability.

Foreign Exchange Contracts

Foreign currency risk is the risk we will incur economic losses due to adverse fluctuations in foreign currency exchange rates. This risk arises from foreign currency-denominated funding agreements issued to nonqualified institutional investors in the international market, foreign currency-denominated fixed maturity and equity securities, and our international operations, including expected cash flows and potential acquisition and divestiture activity. We use various derivatives to manage our exposure to fluctuations in foreign currency exchange rates.

Currency swaps are contracts in which we agree with other parties to exchange, at specified intervals, a series of principal and interest payments in one currency for that of another currency. Generally, the principal amount of each currency is exchanged at the beginning and termination of the currency swap by each party. The interest payments are primarily fixed-to-fixed rate; however, they may also be fixed-to-floating rate or floating-to-fixed rate. These transactions are entered into pursuant to master agreements that provide for a single net payment to be made by one counterparty for payments made in the same currency at each due date. We use currency swaps to reduce market risks from changes in currency exchange rates with respect to investments or liabilities denominated in foreign currencies that we either hold or intend to acquire or sell.

Currency forwards are contracts in which we agree with other parties to deliver or receive a specified amount of an identified currency at a specified future date. Typically, the price is agreed upon at the time of the contract and payment for such a contract is made at the specified future date. We use currency forwards to reduce market risks from changes in currency exchange rates with respect to investments or liabilities denominated in foreign currencies that we either hold or intend to acquire or sell. We use currency forwards to hedge certain net equity investments in foreign operations, including certain sponsored investment funds.

38

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Currency options are contracts that give the holder the right, but not the obligation to buy or sell a specified amount of the identified currency within a limited period of time at a contracted price. The contracts are net settled in cash, based on the differential in the current foreign exchange rate and the strike price. Purchased and sold options can be combined to form a foreign currency collar where we receive a payment if the foreign exchange rate is below the purchased option strike price and make a payment if the foreign exchange rate is above the sold option strike price. We use currency options to hedge expected cash flows from our foreign operations.

Equity Contracts

Equity risk is the risk that we will incur economic losses due to adverse fluctuations in common stock prices. We use various derivatives to manage our exposure to equity risk, which arises from products in which the return or interest we credit is tied to an external equity index as well as products subject to minimum contractual guarantees.

We purchase equity call spreads (“option collars”) to hedge the equity participation rates promised to contractholders in conjunction with our fixed deferred annuity and universal life products that credit interest based on changes in an external equity index. We use exchange-traded futures and equity put options to hedge against changes in the value of the GMWB liability related to the GMWB rider on our variable annuity product. The premium associated with certain options is paid quarterly over the life of the option contract.

We also use exchange-traded futures in various fund strategies to manage an absolute return and volatility reduction objective for equity risk against respective benchmarks.

Credit Contracts

Credit risk relates to the uncertainty associated with the continued ability of a given obligor to make timely payments of principal and interest. We use credit default swaps to enhance the return on our investment portfolio by providing comparable exposure to fixed income securities that might not be available in the primary market. They are also used to hedge credit exposures in our investment portfolio. Credit derivatives are used to sell or buy credit protection on an identified name or names on an unfunded or synthetic basis in return for receiving or paying a quarterly premium. The premium generally corresponds to a referenced name’s credit spread at the time the agreement is executed. In cases where we sell protection, we also buy a quality cash bond to match against the credit default swap, thereby entering into a synthetic transaction replicating a cash security. When selling protection, if there is an event of default by the referenced name, as defined by the agreement, we are obligated to pay the counterparty the referenced amount of the contract and receive in return the referenced security in a principal amount equal to the notional value of the credit default swap.

Other Contracts

Embedded Derivatives. We purchase or issue certain financial instruments or products that contain a derivative instrument that is embedded in the financial instrument or product. When it is determined that the embedded derivative possesses economic characteristics that are not clearly or closely related to the economic characteristics of the host contract and a separate instrument with the same terms would qualify as a derivative instrument, the embedded derivative is bifurcated from the host instrument for measurement purposes. The embedded derivative, which is reported with the host instrument in the consolidated statements of financial position, is carried at fair value.

We offer group annuity contracts that have guaranteed separate accounts as an investment option. We also offer funds with embedded fixed rate guarantees as investment options in our defined contribution plans in Hong Kong.

We have fixed deferred annuities and universal life products that credit interest based on changes in an external equity index. We also have certain variable annuity products with a GMWB rider, which allows the customer to make withdrawals of a specified annual amount, either for a fixed number of years or for the lifetime of the customer, even if the account value is fully exhausted. Declines in the equity markets may increase our exposure to benefits under contracts with the GMWB. We economically hedge the exposure in these contracts, as previously explained.

39

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Exposure

Our risk of loss is typically limited to the fair value of our derivative instruments and not to the notional or contractual amounts of these derivatives. We are also exposed to credit losses in the event of nonperformance of the counterparties. Our current credit exposure is limited to the value of derivatives that have become favorable to us. This credit risk is minimized by purchasing such agreements from financial institutions with high credit ratings and by establishing and monitoring exposure limits. We also utilize various credit enhancements, including collateral and credit triggers to reduce the credit exposure to our derivative instruments.

Derivatives may be exchange-traded or they may be privately negotiated contracts, which are usually referred to as over-the-counter (“OTC”) derivatives. Certain of our OTC derivatives are cleared and settled through central clearing counterparties (“OTC cleared”), while others are bilateral contracts between two counterparties (“bilateral OTC”). Our derivative transactions are generally documented under International Swaps and Derivatives Association, Inc. (“ISDA”) Master Agreements. Management believes that such agreements provide for legally enforceable set-off and close-out netting of exposures to specific counterparties. Under such agreements, in connection with an early termination of a transaction, we are permitted to set off our receivable from a counterparty against our payables to the same counterparty arising out of all included transactions. For reporting purposes, we do not offset fair value amounts of bilateral OTC derivatives for the right to reclaim cash collateral or the obligation to return cash collateral against fair value amounts recognized for derivative instruments executed with the same counterparties under master netting agreements. OTC cleared derivatives have variation margin that is legally characterized as settlement of the derivative exposure, which reduces their fair value in the consolidated statements of financial position.

We posted $232.3 million and $148.3 million in cash and securities under collateral arrangements as of September 30, 2021 and December 31, 2020, respectively, to satisfy collateral and initial margin requirements associated with our derivative credit support agreements and FCM agreements.

Certain of our derivative instruments contain provisions that require us to maintain an investment grade rating from each of the major credit rating agencies on our debt. If the ratings on our debt were to fall below investment grade, it would be in violation of these provisions and the counterparties to the derivative instruments could request immediate payment or demand immediate and ongoing full overnight collateralization on derivative instruments in net liability positions. The aggregate fair value, inclusive of accrued interest, of all derivative instruments with credit-risk-related contingent features that were in a liability position without regard to netting under derivative credit support annex agreements as of September 30, 2021 and December 31, 2020, was $165.9 million and $180.2 million, respectively. Cleared derivatives have contingent features that require us to post excess margin as required by the FCM. The terms surrounding excess margin vary by FCM agreement. With respect to derivatives containing collateral triggers, we posted collateral and initial margin of $232.3 million and $148.3 million as of September 30, 2021 and December 31, 2020, respectively, in the normal course of business, which reflects netting under derivative agreements. If the credit-risk-related contingent features underlying these agreements were triggered on September 30, 2021, we would be required to post an additional $57.8 million of collateral to our counterparties.

As of September 30, 2021 and December 31, 2020, we had received $176.9 million and $225.2 million, respectively, of cash collateral associated with our derivative credit support annex agreements and FCM agreements, for which we recorded a corresponding liability reflecting our obligation to return the collateral.

40

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Notional amounts are used to express the extent of our involvement in derivative transactions and represent a standard measurement of the volume of our derivative activity. Notional amounts represent those amounts used to calculate contractual flows to be exchanged and are not paid or received, except for contracts such as currency swaps. Credit exposure represents the gross amount owed to us under derivative contracts as of the valuation date. The notional amounts and credit exposure of our derivative financial instruments by type were as follows:

	September 30, 2021		December 31, 2020
	(in millions)
Notional amounts of derivative instruments
Interest rate contracts:
Interest rate swaps	$	44,028.9	$	44,472.1
Interest rate options		2,373.9		2,083.9
Interest rate forwards		2,181.6		1,000.0
Interest rate futures		1,585.0		188.5
Swaptions		—		62.0
Foreign exchange contracts:
Currency swaps		1,152.6		1,045.5
Currency forwards		1,006.7		1,115.8
Equity contracts:
Equity options		2,284.4		1,857.8
Equity futures		117.4		218.1
Credit contracts:
Credit default swaps		310.0		295.0
Other contracts:
Embedded derivatives		10,141.6		9,953.8
Total notional amounts at end of period	$	65,182.1	$	62,292.5
Credit exposure of derivative instruments
Interest rate contracts:
Interest rate swaps	$	215.1	$	291.0
Interest rate options		31.9		51.0
Interest rate forwards		—		6.2
Foreign exchange contracts:
Currency swaps		46.0		43.3
Currency forwards		8.9		45.4
Equity contracts:
Equity options		36.2		33.2
Credit contracts:
Credit default swaps		3.0		3.4
Total gross credit exposure		341.1		473.5
Less: collateral received		217.9		294.7
Net credit exposure	$	123.2	$	178.8

41

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

The fair value of our derivative instruments classified as assets and liabilities was as follows:

	Derivative assets (1)				Derivative liabilities (2)
	September 30, 2021		December 31, 2020		September 30, 2021		December 31, 2020
	(in millions)
Derivatives designated as hedging instruments
Interest rate contracts	$	0.6	$	—	$	21.2	$	27.8
Foreign exchange contracts		46.2		21.1		15.2		44.7
Total derivatives designated as hedging instruments	$	46.8	$	21.1	$	36.4	$	72.5
Derivatives not designated as hedging instruments
Interest rate contracts	$	234.2	$	339.3	$	62.6	$	33.0
Foreign exchange contracts		7.9		66.5		78.8		29.2
Equity contracts		36.3		33.2		62.6		49.0
Credit contracts		2.9		3.4		2.6		2.5
Other contracts		—		—		355.3		467.8
Total derivatives not designated as hedging instruments		281.3		442.4		561.9		581.5
Total derivative instruments	$	328.1	$	463.5	$	598.3	$	654.0

(1) The fair value of derivative assets is reported with other investments on the consolidated statements of financial position.

(2) The fair value of derivative liabilities is reported with other liabilities on the consolidated statements of financial position, with the exception of certain embedded derivative liabilities. Embedded derivatives with a net liability fair value of $355.3 million and $467.8 million as of September 30, 2021 and December 31, 2020, respectively, are reported with contractholder funds on the consolidated statements of financial position.

Credit Derivatives Sold

When we sell credit protection, we are exposed to the underlying credit risk similar to purchasing a fixed maturity security instrument. Our credit derivative contracts sold reference a single name or reference security (referred to as “single name credit default swaps”). These instruments are either referenced in an OTC credit derivative transaction or embedded within an investment structure that has been fully consolidated into our financial statements.

These credit derivative transactions are subject to events of default defined within the terms of the contract, which normally consist of bankruptcy, failure to pay, or modified restructuring of the reference entity and/or issue. If a default event occurs for a reference name or security, we are obligated to pay the counterparty an amount equal to the notional amount of the credit derivative transaction. As a result, our maximum future payment is equal to the notional amount of the credit derivative. In certain cases, we also may have purchased credit protection with identical underlyings to certain of our sold protection transactions. As of September 30, 2021 and December 31, 2020, we did not purchase credit protection relating to our sold protection transactions. In certain circumstances, our potential loss could also be reduced by any amount recovered in the default proceedings of the underlying credit name.

42

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

The following tables show our credit default swap protection sold by types of contract, types of referenced/underlying asset class and external agency rating for the underlying reference security. The maximum future payments are undiscounted and have not been reduced by the effect of any offsetting transactions, collateral or recourse features described above.

	September 30, 2021
							Weighted
					Maximum		average
	Notional		Fair		future		expected life
	amount		value		payments		(in years)
	(in millions)
Single name credit default swaps
Corporate debt
A	$	20.0	$	0.4	$	20.0	3.7
BBB		110.0		2.0		110.0	3.3
Sovereign
A		20.0		0.5		20.0	3.7
BBB		15.0		—		15.0	0.2
Total credit default swap protection sold	$	165.0	$	2.9	$	165.0	3.1

	December 31, 2020
							Weighted
					Maximum		average
	Notional		Fair		future		expected life
	amount		value		payments		(in years)
	(in millions)
Single name credit default swaps
Corporate debt
A	$	20.0	$	0.5	$	20.0	4.5
BBB		115.0		2.1		115.0	3.9
Sovereign
A		20.0		0.6		20.0	4.5
BBB		15.0		0.1		15.0	1.0
Total credit default swap protection sold	$	170.0	$	3.3	$	170.0	3.8

Fair Value and Cash Flow Hedges

Fair Value Hedges

We use fixed-to-floating rate interest rate swaps to more closely align the interest rate characteristics of certain assets and have used them to align the interest rate characteristics of certain liabilities. In general, these swaps are used in asset and liability management to modify duration, which is a measure of sensitivity to interest rate changes.

The net interest effect of interest rate swap transactions for derivatives in fair value hedges is recorded as an adjustment to income or expense of the underlying hedged item in our consolidated statements of operations.

43

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

The following amounts were recorded on the consolidated statements of financial position related to cumulative basis adjustments for fair value hedges. The amortized cost includes the amortized cost basis and the fair value hedging basis adjustment.

					Cumulative amount of fair
					value hedging basis adjustment
Line item in the consolidated statements					increase included in the
of financial position in which the	Amortized cost of hedged item				amortized cost of the hedged item
hedged item is included	September 30, 2021		December 31, 2020		September 30, 2021		December 31, 2020
	(in millions)
Fixed maturities, available-for-sale (1):
Active hedging relationships	$	829.2	$	476.1	$	1.0	$	21.4
Discontinued hedging relationships		80.2		135.1		3.1		5.2
Total fixed maturities, available-for-sale in active or discontinued hedging relationships	$	909.4	$	611.2	$	4.1	$	26.6

(1) These amounts include the amortized cost basis of closed portfolios used to designate last-of-layer hedging relationships in which the hedged last layer amount is expected to remain at the end of the hedging relationship. As of September 30, 2021 and December 31, 2020, the amortized cost basis of the closed portfolios used in these hedging relationships was $347.7 million and $0.0 million, respectively, the cumulative basis adjustments associated with these hedging relationships was $(1.9) million and $0.0 million, respectively, and the amount of the designated hedged items were $210.0 million and $0.0 million, respectively.

Cash Flow Hedges

We utilized floating-to-fixed rate interest rate swaps to eliminate the variability in cash flows of recognized financial assets and liabilities and forecasted transactions.

We enter into currency exchange swap agreements to convert both principal and interest payments of certain foreign denominated assets and liabilities into U.S. dollar denominated fixed rate instruments to eliminate the exposure to future currency volatility on those items.

The net interest effect of interest rate swap and currency swap transactions for derivatives in cash flow hedges is recorded as an adjustment to income or expense of the underlying hedged item in our consolidated statements of operations.

The following table shows the effect of derivatives in cash flow hedging relationships on the consolidated statements of financial position.

		Amount of gain (loss) recognized in AOCI on derivatives
		For the three months ended				For the nine months ended
Derivatives in cash		September 30,				September 30,
flow hedging relationships	Related hedged item	2021		2020		2021		2020
		(in millions)
Interest rate contracts	Fixed maturities, available-for-sale	$	—	$	—	$	—	$	(3.0)
Interest rate contracts	Investment contracts		0.6		—		0.6		—
Foreign exchange contracts	Fixed maturities, available-for-sale		30.5		(29.3)		52.3		17.2
Total		$	31.1	$	(29.3)	$	52.9	$	14.2

We expect to reclassify net gains of $22.1 million from AOCI into net income in the next 12 months, which includes both net deferred gains on discontinued hedges and net gains on periodic settlements of active hedges. Actual amounts may vary from this amount as a result of market conditions.

44

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Effect of Fair Value and Cash Flow Hedges on Consolidated Statements of Operations

The following tables show the effect of derivatives in fair value and cash flow hedging relationships and the related hedged items on the consolidated statements of operations.

	For the three months ended September 30, 2021
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains (losses)		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	1,093.4	$	(152.0)	$	1,770.9
Losses on fair value hedging relationships:
Interest rate contracts:
Loss recognized on hedged item	$	(4.0)	$	—	$	—
Gain recognized on derivatives		5.4		—		—
Amortization of hedged item basis adjustments		(0.5)		—		—
Amounts related to periodic settlements on derivatives		(2.4)		—		(0.1)
Total loss recognized for fair value hedging relationships	$	(1.5)	$	—	$	(0.1)
Gains on cash flow hedging relationships:
Interest rate contracts:
Gain reclassified from AOCI on derivatives	$	3.8	$	—	$	—
Gain reclassified from AOCI as a result that a forecasted transaction is no longer probable of occurring		—		0.1		—
Foreign exchange contracts:
Amounts related to periodic settlements on derivatives		2.6		—		—
Total gain recognized for cash flow hedging relationships	$	6.4	$	0.1	$	—

45

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the three months ended September 30, 2020
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	917.9	$	65.5	$	1,839.8
Losses on fair value hedging relationships:
Interest rate contracts:
Loss recognized on hedged item	$	(2.1)	$	—	$	—
Gain recognized on derivatives		1.8		—		—
Amortization of hedged item basis adjustments		(0.6)		—		—
Amounts related to periodic settlements on derivatives		(1.8)		—		—
Total loss recognized for fair value hedging relationships	$	(2.7)	$	—	$	—
Gains (losses) on cash flow hedging relationships:
Interest rate contracts:
Gain (loss) reclassified from AOCI on derivatives	$	4.4	$	0.1	$	(0.1)
Foreign exchange contracts:
Gain reclassified from AOCI on derivatives		—		0.2		—
Amounts related to periodic settlements on derivatives		2.0		—		—
Total gain (loss) recognized for cash flow hedging relationships	$	6.4	$	0.3	$	(0.1)

46

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the nine months ended September 30, 2021
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains (losses)		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	3,167.0	$	(41.7)	$	4,958.4
Losses on fair value hedging relationships:
Interest rate contracts:
Loss recognized on hedged item	$	(20.5)	$	—	$	—
Gain recognized on derivatives		22.2		—		—
Amortization of hedged item basis adjustments		(1.5)		—		—
Amounts related to periodic settlements on derivatives		(6.8)		—		(0.1)
Total loss recognized for fair value hedging relationships	$	(6.6)	$	—	$	(0.1)
Gains (losses) on cash flow hedging relationships:
Interest rate contracts:
Gain (loss) reclassified from AOCI on derivatives	$	11.9	$	—	$	(0.1)
Gain reclassified from AOCI as a result that a forecasted transaction is no longer probable of occurring		—		0.5		—
Foreign exchange contracts:
Gain reclassified from AOCI on derivatives		—		0.7		—
Amounts related to periodic settlements on derivatives		7.0		—		—
Total gain (loss) recognized for cash flow hedging relationships	$	18.9	$	1.2	$	(0.1)

47

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the nine months ended September 30, 2020
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	2,846.1	$	169.5	$	6,299.8
Losses on fair value hedging relationships:
Interest rate contracts:
Gain recognized on hedged item	$	9.1	$	—	$	—
Loss recognized on derivatives		(9.7)		—		—
Amortization of hedged item basis adjustments		(1.9)		—		—
Amounts related to periodic settlements on derivatives		(4.1)		—		—
Total loss recognized for fair value hedging relationships	$	(6.6)	$	—	$	—
Gains (losses) on cash flow hedging relationships:
Interest rate contracts:
Gain (loss) reclassified from AOCI on derivatives	$	13.8	$	2.7	$	(0.1)
Foreign exchange contracts:
Gain reclassified from AOCI on derivatives		—		6.4		—
Amounts related to periodic settlements on derivatives		6.2		—		—
Total gain (loss) recognized for cash flow hedging relationships	$	20.0	$	9.1	$	(0.1)

Net Investment Hedges

We may take measures to hedge our net equity investments in our foreign operations from currency risk. This is accomplished with the use of currency forwards.

Gains and losses associated with net investment hedges are recorded in AOCI and will be released into net income if our investment in the foreign operation is sold or substantially liquidated.

48

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

The following tables show the effect of foreign exchange contracts used to hedge a portion of our net investment in certain sponsored investment funds on the consolidated financial statements.

					Amount of gain
	Amount of gain recognized				reclassified from AOCI into
	in AOCI on derivatives				net realized capital gains (losses)
	for the three months ended				for the three months ended
	September 30,				September 30,
Derivatives in net investment hedging relationships	2021		2020		2021		2020
	(in millions)
Foreign exchange contracts	$	1.3	$	0.8	$	—	$	(7.1)
Total	$	1.3	$	0.8	$	—	$	(7.1)

					Amount of gain
	Amount of gain				reclassified from AOCI into
	recognized in AOCI on derivatives				net realized capital gains (losses)
	for the nine months ended				for the nine months ended
	September 30,				September 30,
Derivatives in net investment hedging relationships	2021		2020		2021		2020
		(in millions)
Foreign exchange contracts	$	2.3	$	10.1	$	—	$	(7.1)
Total	$	2.3	$	10.1	$	—	$	(7.1)

Derivatives Not Designated as Hedging Instruments

Our use of futures, certain swaptions and swaps, option collars, options and forwards are effective from an economic standpoint, but they have not been designated as hedges for financial reporting purposes. As such, periodic changes in the market value of these instruments, which includes mark-to-market gains and losses as well as periodic and final settlements, primarily flow directly into net realized capital gains (losses) on the consolidated statements of operations.

The following table shows the effect of derivatives not designated as hedging instruments, including fair value changes of embedded derivatives that have been bifurcated from the host contract, on the consolidated statements of operations.

	Amount of gain (loss) recognized in				Amount of gain (loss) recognized in
	net income on derivatives for the				net income on derivatives for the
	three months ended September 30,				nine months ended September 30,
Derivatives not designated as hedging instruments	2021		2020		2021		2020
	(in millions)
Interest rate contracts	$	(29.7)	$	(73.5)	$	(131.4)	$	407.0
Foreign exchange contracts		(91.9)		27.2		(117.9)		(5.4)
Equity contracts		18.9		(27.6)		(26.8)		(38.7)
Credit contracts		0.1		0.3		—		1.3
Other contracts		(75.2)		23.1		106.5		(339.2)
Total	$	(177.8)	$	(50.5)	$	(169.6)	$	25.0

49

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

5. Insurance Liabilities

Liability for Unpaid Claims

The liability for unpaid claims is reported in future policy benefits and claims within our consolidated statements of financial position. Activity associated with unpaid claims was as follows:

	For the nine months ended September 30,
	2021		2020
	(in millions)
Balance at beginning of period	$	2,534.9	$	2,365.5
Less: reinsurance recoverable		436.9		403.8
Net balance at beginning of period		2,098.0		1,961.7
Incurred:
Current year		736.0		985.5
Prior years		441.7		37.9
Total incurred		1,177.7		1,023.4
Payments:
Current year		313.6		595.7
Prior years		773.2		335.1
Total payments		1,086.8		930.8
Net balance at end of period		2,188.9		2,054.3
Plus: reinsurance recoverable		437.9		425.4
Balance at end of period	$	2,626.8	$	2,479.7
Amounts not included in the rollforward above:
Claim adjustment expense liabilities	$	59.5	$	58.0

Incurred liability adjustments relating to prior years, which affected current operations during 2021 and 2020, resulted in part from developed claims for prior years being different than were anticipated when the liabilities for unpaid claims were originally estimated. These trends have been considered in establishing the current year liability for unpaid claims.

6. Income Taxes

Effective Income Tax Rate

Our provision for income taxes may not have the customary relationship of taxes to income. A reconciliation between the U.S. corporate income tax rate and the effective income tax rate was as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
U.S. corporate income tax rate	21	%	21	%	21	%	21	%
Dividends received deduction	(4)		(7)		(4)		(5)
Tax credits	(3)		(5)		(2)		(3)
Interest exclusion from taxable income	(1)		(1)		(1)		(1)
Foreign country statutory rate differential	(1)		1		—		—
Impact of equity method presentation	—		(2)		(1)		(1)
State income taxes	1		2		1		1
Low income housing tax credit amortization	1		1		1		1
Other	1		4		—		2
Effective income tax rate	15	%	14	%	15	%	15	%

50

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

7. Employee and Agent Benefits

Components of Net Periodic Benefit Cost

					Other postretirement
	Pension benefits				benefits
	For the three months ended				For the three months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Service cost	$	20.8	$	18.2	$	—	$	—
Interest cost		25.8		29.3		0.5		0.7
Expected return on plan assets		(45.7)		(39.1)		(1.1)		(9.0)
Amortization of prior service benefit		(4.2)		(4.3)		(0.3)		(0.3)
Recognized net actuarial (gain) loss		17.5		18.9		(0.2)		—
Net periodic benefit cost (income)	$	14.2	$	23.0	$	(1.1)	$	(8.6)

					Other postretirement
	Pension benefits				benefits
	For the nine months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Service cost	$	62.4	$	54.5	$	—	$	—
Interest cost		77.4		88.0		1.6		2.1
Expected return on plan assets		(137.0)		(117.5)		(3.5)		(27.0)
Amortization of prior service benefit		(12.6)		(12.7)		(0.8)		(0.8)
Recognized net actuarial (gain) loss		52.6		56.6		(0.4)		—
Net periodic benefit cost (income)	$	42.8	$	68.9	$	(3.1)	$	(25.7)

The components of net periodic benefit cost including the service cost component are included in operating expenses on the consolidated statements of operations.

Contributions

Our funding policy for our qualified pension plan is to fund the plan annually in an amount at least equal to the minimum annual contribution required under the Employee Retirement Income Security Act (“ERISA”) and, generally, not greater than the maximum amount that can be deducted for federal income tax purposes. It is too early to determine, but we do not anticipate that we will be required to fund a minimum required contribution under ERISA. Regardless, it is possible that we may fund the qualified and nonqualified pension plans in 2021 for a combined total of up to $125.0 million. During the three and nine months ended September 30, 2021, we contributed $20.7 million and $92.1 million to these plans, respectively.

Other Postretirement Plan Changes

Effective January 1, 2021, $656.5 million of assets in excess of the expected liability to cover the postretirement medical benefits for retirees were re-designated for non-retiree benefits. The elections were made pursuant to plan provisions, which provide for assets in excess of 125% of expected liabilities to fund other benefits covered under the plans. The re-designated assets, net of associated tax receivable impacts related to a tax adjustment to accumulated other comprehensive income, are not included as part of the asset balances presented in the footnote as they no longer qualify as plan assets in accordance with U.S. GAAP. The re-designated assets are included in equity securities and other investments on our consolidated statements of financial position beginning January 1, 2021.

51

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Change in Plan Assets

The other postretirement benefits plans’ change in plan assets, reconciled to amounts recognized in the consolidated statements of financial position, was as follows:

	September 30,		December 31,
	2021		2020
	(in millions)
Change in plan assets
Fair value of plan assets, beginning balance	$	780.6	$	732.8
Actual return on plan assets		(2.9)		53.1
Employer contribution		1.1		1.5
Participant contributions		4.6		6.0
Benefits paid		(10.2)		(12.8)
Assets re-designated for non-retiree benefits		(656.5)		—
Fair value of plan assets, ending balance	$	116.7	$	780.6
Amount recognized in statement of financial position
Other assets	$	11.7	$	675.5
Other liabilities		(1.8)		(2.9)
Total	$	9.9	$	672.6

8. Contingencies, Guarantees and Indemnifications

Litigation and Regulatory Contingencies

We are regularly involved in litigation, both as a defendant and as a plaintiff, but primarily as a defendant. Litigation naming us as a defendant ordinarily arises out of our business operations as a provider of asset management and accumulation products and services, individual life insurance, specialty benefits insurance and our investment activities. Some of the lawsuits may be class actions, or purport to be, and some may include claims for unspecified or substantial punitive and treble damages.

We may discuss such litigation in one of three ways. We accrue a charge to income and disclose legal matters for which the chance of loss is probable and for which the amount of loss can be reasonably estimated. We may disclose contingencies for which the chance of loss is reasonably possible and provide an estimate of the possible loss or range of loss or a statement that such an estimate cannot be made. Finally, we may voluntarily disclose loss contingencies for which the chance of loss is remote in order to provide information concerning matters that potentially expose us to possible losses.

In addition, regulatory bodies such as state insurance departments, the SEC, the Financial Industry Regulatory Authority (“FINRA”), the Department of Labor (“DOL”) and other regulatory agencies in the U.S. and in international locations in which we do business, regularly make inquiries and conduct examinations or investigations concerning our compliance with, among other things, insurance laws, securities laws, ERISA and laws governing the activities of broker-dealers. We receive requests from regulators and other governmental authorities relating to industry issues and may receive additional requests, including subpoenas and interrogatories, in the future.

On November 12, 2014, Frederick Rozo filed a class action lawsuit in the United States District Court for the Southern District of Iowa against Principal Life and us. We were later dismissed as a defendant. The Plaintiff alleged that defendants breached fiduciary duties and engaged in prohibited transactions under ERISA in connection with a general account guaranteed product known as the Principal Fixed Income Option (“PFIO”). On May 12, 2017, the district court certified a nationwide class of participants and beneficiaries who had funds invested in one of the PFIO contracts. On September 25, 2018, the district court granted Principal Life’s motion for summary judgment. On February 3, 2020, the Eighth Circuit Court of Appeals reversed that ruling and remanded the case back to the district court. A bench trial was held before the district court November 3-10, 2020. The court issued its ruling on April 8, 2021, and found in favor of Principal Life on all claims. The Plaintiff has appealed this ruling to the Eighth Circuit Court of Appeals. Principal Life will continue to aggressively defend the case.

52

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

While the outcome of any pending or future litigation or regulatory matter cannot be predicted, management does not believe any such matter will have a material adverse effect on our business or financial position. As of September 30, 2021, we had no estimated loss accrued related to the legal matter discussed above because we believe the chance of loss from this matter is not probable and the amount of loss cannot be reasonably estimated.

To the extent such matters present a reasonably possible chance of loss, we are generally not able to estimate the possible loss or range of loss associated therewith. The outcome of such matters is always uncertain and unforeseen results can occur. It is possible that such outcomes could require us to pay damages or make other expenditures or establish accruals in amounts that we could not estimate at September 30, 2021.

Guarantees and Indemnifications

In the normal course of business, we have provided guarantees to third parties primarily related to former subsidiaries and joint ventures. The terms of these agreements range in duration and often are not explicitly defined. The maximum exposure under these agreements as of September 30, 2021, was approximately $104.0 million. At inception, the fair value of such guarantees was insignificant. In addition, we believe the likelihood is remote that material payments will be required. Therefore, any liability accrued within our consolidated statements of financial position is insignificant. Should we be required to perform under these guarantees, we generally could recover a portion of the loss from third parties through recourse provisions included in agreements with such parties, the sale of assets held as collateral that can be liquidated in the event performance is required under the guarantees or other recourse generally available to us; therefore, such guarantees would not result in a material adverse effect on our business or financial position. While the likelihood is remote, such outcomes could materially affect net income in a particular quarter or annual period. Furthermore, in connection with our contingent funding agreements, we are required to purchase any principal and interest strips of U.S. Treasury securities that are due and not paid from the associated unconsolidated trusts. The maximum exposure under these agreements as of September 30, 2021, was $750.0 million.

We manage mandatory privatized social security funds in Chile. By regulation, we have a required minimum guarantee on the funds’ relative return. Because the guarantee has no limitation with respect to duration or amount, the maximum exposure of the guarantee in the future is indeterminable.

We are also subject to various other indemnification obligations issued in conjunction with divestitures, acquisitions and financing transactions whose terms range in duration and often are not explicitly defined. Certain portions of these indemnifications may be capped, while other portions are not subject to such limitations; therefore, the overall maximum amount of the obligation under the indemnifications cannot be reasonably estimated. At inception, the fair value of such indemnifications was insignificant. In addition, we believe the likelihood is remote that material payments will be required. Therefore, any liability accrued within our consolidated statements of financial position is insignificant. While we are unable to estimate with certainty the ultimate legal and financial liability with respect to these indemnifications, we believe that performance under these indemnifications would not result in a material adverse effect on our business or financial position. While the likelihood is remote, performance under these indemnifications could materially affect net income in a particular quarter or annual period.

9. Stockholders’ Equity

Common Stock Dividends

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
Dividends declared per common share	$	0.63	$	0.56	$	1.80	$	1.68

53

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Reconciliation of Outstanding Common Shares

	For the three months ended		For the nine months ended
	September 30,		September 30,
	2021	2020	2021	2020
	(in millions)
Beginning balance	269.0	274.0	273.3	276.6
Shares issued	0.3	0.6	2.4	2.4
Treasury stock acquired	(3.2)	(0.1)	(9.6)	(4.5)
Ending balance	266.1	274.5	266.1	274.5

In November 2018, our Board of Directors (“Board”) authorized a share repurchase program of up to $500.0 million of our outstanding common stock, which was completed in February 2020. In February 2020, our Board authorized a share repurchase program of up to $900.0 million of our outstanding common stock, which has no expiration date. In June 2021, our Board authorized a share repurchase program of up to $1.2 billion of our outstanding common stock, which has no expiration date. Shares repurchased under these programs are accounted for as treasury stock, carried at cost and reflected as a reduction to stockholders’ equity.

Other Comprehensive Income (Loss)

	For the three months ended						For the nine months ended
	September 30, 2021						September 30, 2021
	Pre-Tax		Tax		After-Tax		Pre-Tax		Tax		After-Tax
	(in millions)
Net unrealized losses on available-for-sale securities during the period	$	(546.4)	$	127.4	$	(419.0)	$	(2,461.6)	$	554.9	$	(1,906.7)
Reclassification adjustment for gains included in net income (1)		(2.6)		0.2		(2.4)		(3.8)		0.2		(3.6)
Adjustments for assumed changes in amortization patterns		32.2		(6.8)		25.4		121.3		(25.5)		95.8
Adjustments for assumed changes in policyholder liabilities		477.2		(104.8)		372.4		1,573.7		(365.3)		1,208.4
Net unrealized losses on available-for-sale securities		(39.6)		16.0		(23.6)		(770.4)		164.3		(606.1)
Net unrealized gains on derivative instruments during the period		31.2		(6.6)		24.6		53.7		(11.3)		42.4
Reclassification adjustment for gains included in net income (2)		(3.9)		0.8		(3.1)		(13.0)		2.7		(10.3)
Adjustments for assumed changes in amortization patterns		(0.5)		0.1		(0.4)		(0.5)		0.1		(0.4)
Adjustments for assumed changes in policyholder liabilities		(0.4)		—		(0.4)		1.0		(0.3)		0.7
Net unrealized gains on derivative instruments		26.4		(5.7)		20.7		41.2		(8.8)		32.4
Foreign currency translation adjustment		(189.3)		(4.0)		(193.3)		(209.5)		(4.6)		(214.1)
Unrecognized postretirement benefit obligation during the period		—		—		—		(9.1)		1.9		(7.2)
Amortization of amounts included in net periodic benefit cost (4)		12.8		(3.5)		9.3		38.8		(10.4)		28.4
Net unrecognized postretirement benefit obligation		12.8		(3.5)		9.3		29.7		(8.5)		21.2
Other comprehensive loss	$	(189.7)	$	2.8	$	(186.9)	$	(909.0)	$	142.4	$	(766.6)

54

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the three months ended						For the nine months ended
	September 30, 2020						September 30, 2020
	Pre-Tax		Tax		After-Tax		Pre-Tax		Tax		After-Tax
	(in millions)
Net unrealized gains on available-for-sale securities during the period	$	960.1	$	(200.0)	$	760.1	$	2,378.1	$	(500.1)	$	1,878.0
Reclassification adjustment for (gains) losses included in net income (1)		2.9		(1.0)		1.9		(54.5)		12.6		(41.9)
Adjustments for assumed changes in amortization patterns		(109.0)		22.9		(86.1)		(112.9)		23.7		(89.2)
Adjustments for assumed changes in policyholder liabilities		(565.7)		116.5		(449.2)		(1,136.0)		241.9		(894.1)
Net unrealized gains on available-for-sale securities		288.3		(61.6)		226.7		1,074.7		(221.9)		852.8
Net unrealized gains (losses) on derivative instruments during the period		(29.2)		6.2		(23.0)		26.2		(4.9)		21.3
Reclassification adjustment for gains included in net income (2)		(4.6)		0.9		(3.7)		(22.8)		4.2		(18.6)
Adjustments for assumed changes in amortization patterns		0.2		—		0.2		0.9		(0.2)		0.7
Adjustments for assumed changes in policyholder liabilities		1.7		(0.3)		1.4		4.6		(0.9)		3.7
Net unrealized gains (losses) on derivative instruments		(31.9)		6.8		(25.1)		8.9		(1.8)		7.1
Foreign currency translation adjustment during the period		75.5		5.5		81.0		(231.1)		2.7		(228.4)
Reclassification adjustment for losses included in net income (3)		11.5		1.8		13.3		43.0		1.8		44.8
Foreign currency translation adjustment		87.0		7.3		94.3		(188.1)		4.5		(183.6)
Unrecognized postretirement benefit obligation during the period		—		—		—		0.6		(0.2)		0.4
Amortization of amounts included in net periodic benefit cost (4)		14.3		(3.8)		10.5		43.1		(11.6)		31.5
Net unrecognized postretirement benefit obligation		14.3		(3.8)		10.5		43.7		(11.8)		31.9
Other comprehensive income	$	357.7	$	(51.3)	$	306.4	$	939.2	$	(231.0)	$	708.2

(1) Pre-tax reclassification adjustments relating to available-for-sale securities are reported in net realized capital gains (losses) on the consolidated statements of operations.

(2) See Note 4, Derivative Financial Instruments, under the caption “Effect of Fair Value and Cash Flow Hedges on Consolidated Statements of Operations” for further details.

(3) The 2020 pre-tax reclassification adjustment primarily related to the release of the cumulative translation adjustment from the dissolution of a foreign subsidiary. The adjustment was reported in net realized capital gains (losses) on the consolidated statements of operations. For both the three and nine months ended September 30, 2020, $8.7 million of this reclassification relates to noncontrolling interest and is reported in net income attributable to noncontrolling interest on the consolidated statements of operations.

(4) Amount is comprised of amortization of prior service cost (benefit) and recognized net actuarial (gain) loss, which is reported in operating expenses on the consolidated statements of operations. See Note 7, Employee and Agent Benefits, under the caption “Components of Net Periodic Benefit Cost” for further details.

55

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Accumulated Other Comprehensive Income

			Noncredit
	Net unrealized		component of		Net unrealized		Foreign		Unrecognized		Accumulated
	gains on		impairment losses		gains		currency		postretirement		other
	available-for-sale		on fixed maturities		on derivative		translation		benefit		comprehensive
	securities(1)		available-for-sale		instruments		adjustment		obligation		income
	(in millions)
Balances as of July 1, 2020	$	3,388.2	$	—	$	85.6	$	(1,608.9)	$	(414.2)	$	1,450.7
Other comprehensive income during the period, net of adjustments		224.7		—		(21.4)		79.8		—		283.1
Amounts reclassified from AOCI		1.9		—		(3.7)		4.6		10.5		13.3
Other comprehensive income		226.6		—		(25.1)		84.4		10.5		296.4
Balances as of September 30, 2020	$	3,614.8	$	—	$	60.5	$	(1,524.5)	$	(403.7)	$	1,747.1
Balances as of July 1, 2021	$	3,555.8	$	—	$	29.9	$	(1,333.3)	$	(448.6)	$	1,803.8
Other comprehensive loss during the period, net of adjustments		(21.2)		—		23.8		(191.0)		—		(188.4)
Amounts reclassified from AOCI		(2.4)		—		(3.1)		—		9.3		3.8
Other comprehensive loss		(23.6)		—		20.7		(191.0)		9.3		(184.6)
Balances as of September 30, 2021	$	3,532.2	$	—	$	50.6	$	(1,524.3)	$	(439.3)	$	1,619.2

			Noncredit
	Net unrealized		component of		Net unrealized		Foreign		Unrecognized		Accumulated
	gains on		impairment losses		gains		currency		postretirement		other
	available-for-sale		on fixed maturities		on derivative		translation		benefit		comprehensive
	securities (1)		available-for-sale (2)		instruments		adjustment		obligation		income
	(in millions)
Balances as of January 1, 2020	$	2,806.0	$	(44.1)	$	53.4	$	(1,341.8)	$	(435.6)	$	1,037.9
Other comprehensive income during the period, net of adjustments		894.8		—		25.7		(218.8)		0.4		702.1
Amounts reclassified from AOCI		(41.9)		—		(18.6)		36.1		31.5		7.1
Other comprehensive income		852.9		—		7.1		(182.7)		31.9		709.2
Effects of implementation of accounting change related to credit losses, net		(44.1)		44.1		—		—		—		—
Balances as of September 30, 2020	$	3,614.8	$	—	$	60.5	$	(1,524.5)	$	(403.7)	$	1,747.1
Balances as of January 1, 2021	$	4,138.3	$	—	$	18.2	$	(1,312.9)	$	(460.5)	$	2,383.1
Other comprehensive loss during the period, net of adjustments		(602.5)		—		42.7		(211.4)		(7.2)		(778.4)
Amounts reclassified from AOCI		(3.6)		—		(10.3)		—		28.4		14.5
Other comprehensive loss		(606.1)		—		32.4		(211.4)		21.2		(763.9)
Balances as of September 30, 2021	$	3,532.2	$	—	$	50.6	$	(1,524.3)	$	(439.3)	$	1,619.2

(1) Net unrealized losses on available-for-sale debt securities for which an allowance for credit loss has been recorded were $16.2 million and $4.0 million as of September 30, 2021 and 2020, respectively.

(2) Prior to the implementation of authoritative guidance in 2020, the noncredit component of impairment losses on fixed maturities, available-for-sale was included as a separate component of stockholders’ equity.

Noncontrolling Interest

Interests held by unaffiliated parties in consolidated entities are reflected in noncontrolling interest, which represents the noncontrolling partners’ share of the underlying net assets of our consolidated subsidiaries. Noncontrolling interest that is not redeemable is reported in the equity section of the consolidated statements of financial position.

The noncontrolling interest holders in certain of our consolidated entities maintain an equity interest that is redeemable at the option of the holder, which may be exercised on varying dates. Since redemption of the noncontrolling interest is outside of our control, this interest is excluded from stockholders’ equity and reported separately as redeemable noncontrolling interest on the consolidated statements of financial position. Our redeemable noncontrolling interest primarily relates to consolidated sponsored investment funds for which interests are redeemed at fair value from the net assets of the funds.

56

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

For our redeemable noncontrolling interest related to other consolidated subsidiaries, redemptions are required to be purchased at fair value or a value based on a formula that management intended to reasonably approximate fair value based on a fixed multiple of earnings over a measurement period. The carrying value of the redeemable noncontrolling interest is compared to the redemption value at each reporting period. Any adjustments to the carrying amount of the redeemable noncontrolling interest for changes in redemption value prior to exercise of the redemption option are determined after the attribution of net income or loss of the subsidiary and are recognized in the redemption value as they occur. Adjustments to the carrying value of redeemable noncontrolling interest result in adjustments to additional paid-in capital and/or retained earnings. Adjustments are recorded in retained earnings to the extent the redemption value of the redeemable noncontrolling interest exceeds its fair value and will impact the numerator in our earnings per share calculations. All other adjustments to the redeemable noncontrolling interest are recorded in additional paid-in capital.

Following is a reconciliation of the changes in the redeemable noncontrolling interest (in millions):

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Balance at beginning of period	$	330.6	$	272.7	$	255.6	$	264.9
Net income (loss) attributable to redeemable noncontrolling interest		2.7		(1.5)		9.5		(9.5)
Redeemable noncontrolling interest of deconsolidated entities		(37.4)		(47.3)		(37.4)		(47.3)
Contributions from redeemable noncontrolling interest		60.2		49.7		148.2		124.3
Distributions to redeemable noncontrolling interest		(11.7)		(6.0)		(34.8)		(53.8)
Purchase of subsidiary shares from redeemable noncontrolling interest (1)		(0.7)		—		(6.1)		—
Change in redemption value of redeemable noncontrolling interest		—		1.7		8.6		(0.2)
Stock-based compensation attributable to redeemable noncontrolling interest		—		0.1		—		0.1
Other comprehensive income (loss) attributable to redeemable noncontrolling interest		(0.4)		9.1		(0.3)		—
Balance at end of period	$	343.3	$	278.5	$	343.3	$	278.5

(1) In second quarter 2021, we acquired the remaining interest in Principal Innovations, Inc. and its wholly owned subsidiary, RobustWealth, Inc.

10. Fair Value Measurements

We use fair value measurements to record fair value of certain assets and liabilities and to estimate fair value of financial instruments not recorded at fair value but required to be disclosed at fair value. Certain financial instruments, particularly policyholder liabilities other than investment contracts, are excluded from these fair value disclosure requirements.

Valuation Hierarchy

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three levels. The level in the fair value hierarchy within which the fair value measurement in its entirety falls is determined based on the lowest level input that is significant to the fair value measurement in its entirety considering factors specific to the asset or liability.

● Level 1 – Fair values are based on unadjusted quoted prices in active markets for identical assets or liabilities.

● Level 2 – Fair values are based on inputs other than quoted prices within Level 1 that are observable for the asset or liability, either directly or indirectly.

● Level 3 – Fair values are based on at least one significant unobservable input for the asset or liability.

57

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Determination of Fair Value

The following discussion describes the valuation methodologies and inputs used for assets and liabilities measured at fair value on a recurring basis. The techniques utilized in estimating the fair value of financial instruments are reliant on the assumptions used. Care should be exercised in deriving conclusions about our business, its value or financial position based on the fair value information of financial instruments presented below.

Fair value estimates are made based on available market information and judgments about the financial instrument at a specific point in time. Such estimates do not consider the tax impact of the realization of unrealized gains or losses. In addition, the disclosed fair value may not be realized in the immediate settlement of the financial instrument. We validate prices through an investment analyst review process, which includes validation through direct interaction with external sources, review of recent trade activity or use of internal models. In circumstances where broker quotes are used to value an instrument, we generally receive one non-binding quote. Broker quotes are validated through an investment analyst review process, which includes validation through direct interaction with external sources and use of internal models or other relevant information. We did not make any significant changes to our valuation processes during 2021.

Fixed Maturities

Fixed maturities include bonds, ABS, redeemable preferred stock and certain non-redeemable preferred securities. When available, the fair value of fixed maturities is based on quoted prices of identical assets in active markets. These are reflected in Level 1 and primarily include U.S. Treasury bonds and actively traded redeemable corporate preferred securities.

When quoted prices of identical assets in active markets are not available, our first priority is to obtain prices from third party pricing vendors. We have regular interaction with these vendors to ensure we understand their pricing methodologies and to confirm they are utilizing observable market information. Their methodologies vary by asset class and include inputs such as estimated cash flows, benchmark yields, reported trades, broker quotes, credit quality, industry events and economic events. Fixed maturities with validated prices from pricing services, which includes the majority of our public fixed maturities in all asset classes, are generally reflected in Level 2. Also included in Level 2 are corporate bonds when quoted market prices are not available, for which an internal model using substantially all observable inputs or a matrix pricing valuation approach is used. In the matrix approach, securities are grouped into pricing categories that vary by sector, rating and average life. Each pricing category is assigned a risk spread based on studies of observable public market data from the investment professionals assigned to specific security classes. The expected cash flows of the security are then discounted back at the current Treasury curve plus the appropriate risk spread. Although the matrix valuation approach provides a fair valuation of each pricing category, the valuation of an individual security within each pricing category may also be impacted by company specific factors.

If we are unable to price a fixed maturity security using prices from third party pricing vendors or other sources specific to the asset class, we may obtain a broker quote or utilize an internal pricing model specific to the asset utilizing relevant market information, to the extent available and where at least one significant unobservable input is utilized. These are reflected in Level 3 in the fair value hierarchy and can include fixed maturities across all asset classes. As of September 30, 2021, 1% of our total fixed maturities were Level 3 securities valued using internal pricing models.

The primary inputs, by asset class, for valuations of the majority of our Level 2 investments from third party pricing vendors or our internal pricing valuation approach are described below.

U.S. Government and Agencies/Non-U.S. Governments. Inputs include recently executed market transactions, interest rate yield curves, maturity dates, market price quotations and credit spreads relating to similar instruments.

States and Political Subdivisions. Inputs include Municipal Securities Rulemaking Board reported trades, U.S. Treasury and other benchmark curves, material event notices, new issue data and obligor credit ratings.

Corporate. Inputs include recently executed transactions, market price quotations, benchmark yields, issuer spreads and observations of equity and credit default swap curves related to the issuer. For private placement corporate securities valued through the matrix valuation approach inputs include the current Treasury curve and risk spreads based on sector, rating and average life of the issuance.

58

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

RMBS, CMBS, Collateralized Debt Obligations and Other Debt Obligations. Inputs include cash flows, priority of the tranche in the capital structure, expected time to maturity for the specific tranche, reinvestment period remaining and performance of the underlying collateral including prepayments, defaults, deferrals, loss severity of defaulted collateral and, for RMBS, prepayment speed assumptions. Other inputs include market indices and recently executed market transactions.

Equity Securities

Equity securities include mutual funds, common stock, non-redeemable preferred stock and required regulatory investments. Fair values of equity securities are determined using quoted prices in active markets for identical assets when available, which are reflected in Level 1. When quoted prices are not available, we may utilize internal valuation methodologies appropriate for the specific asset that use observable inputs such as underlying share prices or the net asset value (“NAV”), which are reflected in Level 2. Fair values might also be determined using broker quotes or through the use of internal models or analysis that incorporate significant assumptions deemed appropriate given the circumstances and consistent with what other market participants would use when pricing such securities, which are reflected in Level 3.

Derivatives

The fair values of exchange-traded derivatives are determined through quoted market prices, which are reflected in Level 1. Exchange-traded derivatives include futures that are settled daily, which reduces their fair value in the consolidated statements of financial position. The fair values of OTC cleared derivatives are determined through market prices published by the clearinghouses, which are reflected in Level 2. The clearinghouses utilize the secured overnight financing rate curve in their valuation. Variation margin associated with OTC cleared derivatives is settled daily, which reduces their fair value in the consolidated statements of financial position. The fair values of bilateral OTC derivative instruments are determined using either pricing valuation models that utilize market observable inputs or broker quotes. The majority of our bilateral OTC derivatives are valued with models that use market observable inputs, which are reflected in Level 2. Significant inputs include contractual terms, interest rates, currency exchange rates, credit spread curves, equity prices and volatilities. These valuation models consider projected discounted cash flows, relevant swap curves and appropriate implied volatilities. Certain bilateral OTC derivatives utilize unobservable market data, primarily independent broker quotes that are nonbinding quotes based on models that do not reflect the result of market transactions, which are reflected in Level 3.

Our non-cleared derivative contracts are generally documented under ISDA Master Agreements, which provide for legally enforceable set-off and close-out netting of exposures to specific counterparties. Collateral arrangements are bilateral and based on current ratings of each entity. We utilize the LIBOR interest rate curve to value our positions, which includes a credit spread. This credit spread incorporates an appropriate level of nonperformance risk into our valuations given the current ratings of our counterparties, as well as the collateral agreements in place. Counterparty credit risk is routinely monitored to ensure our adjustment for nonperformance risk is appropriate. Our centrally cleared derivative contracts are conducted with regulated centralized clearinghouses, which provide for daily exchange of cash collateral or variation margin equal to the difference in the daily market values of those contracts that eliminates the nonperformance risk on these trades.

Interest Rate Contracts. For non-cleared contracts we use discounted cash flow valuation techniques for interest rate swaps and have used for swaptions to determine the fair value using observable swap curves as the inputs. These are reflected in Level 2. We have forward contracts for which we obtain prices from third party pricing vendors. These are reflected in Level 2. For centrally cleared contracts we use published prices from clearinghouses. These are reflected in Level 2. In addition, we had interest rate options that were valued using broker quotes. These were reflected in Level 3.

Foreign Exchange Contracts. We use discounted cash flow valuation techniques that utilize observable swap curves and exchange rates as the inputs to determine the fair value of foreign currency swaps. These are reflected in Level 2. Currency forwards and currency options are valued using observable market inputs, including forward currency exchange rates. These are reflected in Level 2. In addition, we have had a limited number of non-standard currency swaps that are valued using broker quotes. These were reflected within Level 3.

Equity Contracts. We use an option pricing model using observable implied volatilities, dividend yields, index prices and swap curves as the inputs to determine the fair value of equity options. These are reflected in Level 2.

59

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Credit Contracts. We use either the ISDA Credit Default Swap Standard discounted cash flow model that utilizes observable default probabilities and recovery rates as inputs to determine the fair value of credit default swaps. These are reflected in Level 2. In addition, we have a limited number of credit default swaps that are valued using broker quotes. These are reflected within Level 3.

Other Investments

Other investments reported at fair value include invested assets of consolidated sponsored investment funds, unconsolidated sponsored investment funds, other investment funds reported at fair value, equity method real estate investments for which the fair value option was elected and certain nonredeemable preferred stock.

Invested assets of consolidated sponsored investment funds include equity securities, fixed maturities and derivative assets, for which fair values are determined as previously described, and are reflected in Level 1 and Level 2.

The fair value of unconsolidated sponsored investment funds and other investment funds is determined using the NAV of the fund. The NAV of the fund represents the price at which we would be able to initiate a transaction. Investments for which the NAV represents a quoted price in an active market for identical assets are reflected in Level 1. Investments that do not have a quoted price in an active market are reflected in Level 2.

Equity method real estate investments for which the fair value option was elected were reflected in Level 3. The equity method real estate investments consisted of underlying real estate and debt. The real estate fair value was estimated using a discounted cash flow valuation model that utilized public real estate market data inputs such as transaction prices, market rents, vacancy levels, leasing absorption, market cap rates and discount rates. The debt fair value was estimated using a discounted cash flow analysis based on our incremental borrowing rate for similar borrowing arrangements. The last equity method real estate investment for which the fair value option was elected was sold in the third quarter of 2021.

The fair value of certain redeemable and nonredeemable preferred stock is based on an internal model using unobservable inputs, which is reflected in Level 3. The redeemable preferred stock was sold in the third quarter of 2020.

Cash Equivalents

Certain cash equivalents are reported at fair value on a recurring basis and include money market instruments and other short-term investments with maturities of three months or less. Fair values of these cash equivalents may be determined using public quotations, when available, which are reflected in Level 1. When public quotations are not available, because of the highly liquid nature of these assets, carrying amounts may be used to approximate fair values, which are reflected in Level 2.

Separate Account Assets

Separate account assets include equity securities, debt securities, cash equivalents and derivative instruments, for which fair values are determined as previously described, and are reflected in Level 1, Level 2 and Level 3. Separate account assets also include commercial mortgage loans, for which the fair value is estimated by discounting the expected total cash flows using market rates that are applicable to the yield, credit quality and maturity of the loans. The market clearing spreads vary based on mortgage type, weighted average life, rating and liquidity. These are reflected in Level 3. Finally, separate account assets include real estate, for which the fair value is estimated using discounted cash flow valuation models that utilize various public real estate market data inputs. In addition, each property is appraised annually by an independent appraiser. The real estate included in separate account assets is recorded net of related mortgage encumbrances for which the fair value is estimated using discounted cash flow analysis based on our incremental borrowing rate for similar borrowing arrangements. The real estate within the separate accounts is reflected in Level 3.

60

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Investment and Universal Life Contracts

Certain universal life, annuity and other investment contracts include embedded derivatives that have been bifurcated from the host contract and are measured at fair value on a recurring basis, which are reflected in Level 3. The key assumptions for calculating the fair value of the embedded derivative liabilities are market assumptions (such as equity market returns, interest rate levels, market volatility and correlations) and policyholder behavior assumptions (such as lapse, mortality, utilization and withdrawal patterns). Risk margins are included in the policyholder behavior assumptions. The assumptions are based on a combination of historical data and actuarial judgment. The embedded derivative liabilities are valued using models that incorporate a spread reflecting our own creditworthiness.

The assumption for our own nonperformance risk for investment contracts and any embedded derivatives bifurcated from certain universal life, annuity and investment contracts is based on the current market credit spreads for debt-like instruments we have issued and are available in the market.

Other Liabilities

Derivative liabilities of consolidated sponsored investment funds are reported at fair value within other liabilities. Fair values of these derivatives are determined as previously described and are reflected in Level 2.

61

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Assets and liabilities measured at fair value on a recurring basis were as follows:

	September 30, 2021
	Assets/		Amount
	(liabilities)		measured at
	measured at		net asset		Fair value hierarchy level
	fair value		value (4)		Level 1		Level 2		Level 3
	(in millions)
Assets
Fixed maturities, available-for-sale:
U.S. government and agencies	$	1,921.8	$	—	$	1,606.0	$	315.8	$	—
Non-U.S. governments		1,044.8		—		1.0		1,043.8		—
States and political subdivisions		9,233.0		—		—		9,233.0		—
Corporate		45,544.9		—		41.6		44,697.5		805.8
Residential mortgage-backed pass-through securities		2,882.6		—		—		2,882.6		—
Commercial mortgage-backed securities		5,283.2		—		—		5,269.0		14.2
Collateralized debt obligations (1)		3,566.3		—		—		3,515.9		50.4
Other debt obligations		7,080.5		—		—		7,058.3		22.2
Total fixed maturities, available-for-sale		76,557.1		—		1,648.6		74,015.9		892.6
Fixed maturities, trading		413.5		—		0.5		413.0		—
Equity securities		2,428.2		—		1,089.9		1,338.3		—
Derivative assets (2)		328.1		—		—		327.4		0.7
Other investments		784.4		92.6		312.0		377.1		2.7
Cash equivalents		1,786.9		—		65.9		1,721.0		—
Sub-total excluding separate account assets		82,298.2		92.6		3,116.9		78,192.7		896.0
Separate account assets		177,850.5		8,165.2		110,111.4		58,306.6		1,267.3
Total assets	$	260,148.7	$	8,257.8	$	113,228.3	$	136,499.3	$	2,163.3
Liabilities
Investment and universal life contracts (3)	$	(355.3)	$	—	$	—	$	—	$	(355.3)
Derivative liabilities (2)		(242.9)		—		—		(242.2)		(0.7)
Other liabilities		(1.8)		—		—		(1.8)		—
Total liabilities	$	(600.0)	$	—	$	—	$	(244.0)	$	(356.0)
Net assets	$	259,548.7	$	8,257.8	$	113,228.3	$	136,255.3	$	1,807.3

62

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	December 31, 2020
	Assets/		Amount
	(liabilities)		measured at
	measured at		net asset		Fair value hierarchy level
	fair value		value (4)		Level 1		Level 2		Level 3
	(in millions)
Assets
Fixed maturities, available-for-sale:
U.S. government and agencies	$	2,111.5	$	—	$	1,768.3	$	343.2	$	—
Non-U.S. governments		1,073.7		—		1.1		1,072.6		—
States and political subdivisions		9,167.8		—		—		9,167.8		—
Corporate		47,354.8		—		—		47,064.0		290.8
Residential mortgage-backed pass-through securities		2,986.8		—		—		2,986.8		—
Commercial mortgage-backed securities		4,942.3		—		—		4,929.1		13.2
Collateralized debt obligations (1)		4,027.5		—		—		4,000.3		27.2
Other debt obligations		7,045.9		—		—		7,016.7		29.2
Total fixed maturities, available-for-sale		78,710.3		—		1,769.4		76,580.5		360.4
Fixed maturities, trading		532.1		—		0.5		531.6		—
Equity securities		2,013.4		—		659.7		1,353.7		—
Derivative assets (2)		463.5		—		—		462.9		0.6
Other investments		746.3		75.7		252.8		385.9		31.9
Cash equivalents		1,466.4		—		38.3		1,428.1		—
Sub-total excluding separate account assets		83,932.0		75.7		2,720.7		80,742.7		392.9
Separate account assets		175,951.4		155.8		102,550.5		64,351.9		8,893.2
Total assets	$	259,883.4	$	231.5	$	105,271.2	$	145,094.6	$	9,286.1
Liabilities
Investment and universal life contracts (3)	$	(467.8)	$	—	$	—	$	—	$	(467.8)
Derivative liabilities (2)		(186.1)		—		—		(180.4)		(5.7)
Other liabilities		(0.4)		—		—		(0.4)		—
Total liabilities	$	(654.3)	$	—	$	—	$	(180.8)	$	(473.5)
Net assets	$	259,229.1	$	231.5	$	105,271.2	$	144,913.8	$	8,812.6

(1) Primarily consists of collateralized loan obligations backed by secured corporate loans.

(2) Within the consolidated statements of financial position, derivative assets are reported with other investments and derivative liabilities are reported with other liabilities. The amounts are presented gross in the tables above to reflect the presentation on the consolidated statements of financial position; however, are presented net for purposes of the rollforward in the Changes in Level 3 Fair Value Measurements tables. Refer to Note 4, Derivative Financial Instruments, for further information on fair value by class of derivative instruments.

(3) Includes bifurcated embedded derivatives that are reported at net asset (liability) fair value within the same line item in the consolidated statements of financial position in which the host contract is reported.

(4) Certain investments are measured at fair value using the NAV per share (or its equivalent) practical expedient and have not been classified in the fair value hierarchy. Other investments using the NAV practical expedient consist of certain fund interests that are restricted until maturity with unfunded commitments totaling $10.8 million and $15.1 million as of September 30, 2021 and December 31, 2020, respectively. Separate account assets using the NAV practical expedient consist of hedge funds and a real estate fund with varying investment strategies that also have a variety of redemption terms and conditions. We do not have unfunded commitments associated with these funds.

63

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Changes in Level 3 Fair Value Measurements

The reconciliation for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) was as follows:

	For the three months ended September 30, 2021
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	July 1,		net income		comprehensive		settlements		into		out of		September 30,
	2021		(2)		income (3)		(4)		Level 3		Level 3		2021
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	549.0	$	(7.8)	$	10.5	$	229.0	$	25.1	$	—	$	805.8
Commercial mortgage-backed securities		11.6		—		(0.1)		2.7		—		—		14.2
Collateralized debt obligations		195.6		—		—		27.6		—		(172.8)		50.4
Other debt obligations		61.4		—		(0.2)		(14.0)		—		(25.0)		22.2
Total fixed maturities, available-for-sale		817.6		(7.8)		10.2		245.3		25.1		(197.8)		892.6
Other investments		44.5		(0.1)		(0.6)		(41.1)		—		—		2.7
Separate account assets (1)		1,217.4		71.0		—		(21.1)		—		—		1,267.3
Liabilities
Investment and universal life contracts		(281.6)		(80.4)		0.1		6.6		—		—		(355.3)
Derivatives
Net derivative assets (liabilities)		(8.9)		(1.8)		—		10.7		—		—		—

	For the three months ended September 30, 2020
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	July 1,		net income		comprehensive		settlements		into		out of		September 30,
	2020		(2)		income (3)		(4)		Level 3		Level 3		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	275.0	$	(1.0)	$	4.3	$	27.5	$	—	$	(24.5)	$	281.3
Commercial mortgage-backed securities		13.1		(0.4)		—		—		0.3		—		13.0
Collateralized debt obligations		2.8		(0.9)		0.4		16.1		—		—		18.4
Other debt obligations		71.2		—		(0.2)		(35.1)		—		(6.8)		29.1
Total fixed maturities, available-for-sale		362.1		(2.3)		4.5		8.5		0.3		(31.3)		341.8
Other investments		38.7		2.7		—		(11.0)		—		—		30.4
Separate account assets (1)		8,821.3		72.3		—		(38.4)		—		—		8,855.2
Liabilities
Investment and universal life contracts		(576.0)		23.2		—		0.4		—		—		(552.4)
Derivatives
Net derivative assets (liabilities)		(14.2)		4.7		—		(0.9)		—		—		(10.4)

64

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the nine months ended September 30, 2021
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	January 1,		net income		comprehensive		settlements		into		out of		September 30,
	2021		(2)		income (3)		(4)		Level 3		Level 3		2021
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	290.8	$	(12.7)	$	5.8	$	354.3	$	167.6	$	—	$	805.8
Commercial mortgage-backed securities		13.2		(1.0)		(0.6)		2.6		—		—		14.2
Collateralized debt obligations		27.2		(2.0)		1.8		337.5		84.1		(398.2)		50.4
Other debt obligations		29.2		—		0.6		(3.2)		20.6		(25.0)		22.2
Total fixed maturities, available-for-sale		360.4		(15.7)		7.6		691.2		272.3		(423.2)		892.6
Other investments		31.9		12.5		(0.6)		(41.1)		—		—		2.7
Separate account assets (1)		8,893.2		215.6		—		(7,841.5)		—		—		1,267.3
Liabilities
Investment and universal life contracts		(467.8)		89.3		0.2		23.0		—		—		(355.3)
Derivatives
Net derivative assets (liabilities)		(5.1)		(6.2)		—		11.3		—		—		—

65

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the nine months ended September 30, 2020
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	January 1,		net income		comprehensive		settlements		into		out of		September 30,
	2020		(2)		income (3)		(4)		Level 3		Level 3		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	81.7	$	(1.0)	$	(6.3)	$	38.3	$	342.0	$	(173.4)	$	281.3
Commercial mortgage-backed securities		12.9		(1.3)		1.1		—		0.3		—		13.0
Collateralized debt obligations		199.0		(1.9)		(22.2)		158.1		—		(314.6)		18.4
Other debt obligations		91.3		—		(1.6)		(37.8)		46.1		(68.9)		29.1
Total fixed maturities, available-for-sale		384.9		(4.2)		(29.0)		158.6		388.4		(556.9)		341.8
Fixed maturities, trading		0.3		—		—		—		—		(0.3)		—
Other investments		39.0		5.0		(2.9)		(10.7)		—		—		30.4
Separate account assets (1)		8,968.0		225.4		—		(338.2)		—		—		8,855.2
Liabilities
Investment and universal life contracts		(214.2)		(335.5)		(0.3)		(2.4)		—		—		(552.4)
Derivatives
Net derivative assets (liabilities)		13.0		6.5		—		(3.4)		—		(26.5)		(10.4)

(1) Gains and losses for separate account assets do not impact net income as the change in value of separate account assets is offset by a change in value of separate account liabilities. Foreign currency translation adjustments related to the Principal International segment separate account assets are recorded in AOCI and are offset by foreign currency translation adjustments of the corresponding separate account liabilities.

(2) Both realized gains (losses) and mark-to-market unrealized gains (losses) are generally reported in net realized capital gains (losses) within the consolidated statements of operations. Realized and unrealized gains (losses) on certain securities with an investment objective to realize economic value through mark-to-market changes are reported in net investment income within the consolidated statements of operations. Changes in unrealized gains (losses) included in net income relating to positions still held were:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	(7.8)	$	—	$	(12.6)	$	—
Commercial mortgage-backed securities		—		(0.4)		—		(1.3)
Collateralized debt obligations		—		(0.9)		(2.0)		(1.9)
Total fixed maturities, available-for-sale		(7.8)		(1.3)		(14.6)		(3.2)
Other investments		(0.1)		1.7		12.6		4.0
Separate account assets		71.5		72.3		215.6		211.2
Liabilities
Investment and universal life contracts		(76.4)		29.4		86.1		(344.8)
Derivatives
Net derivative assets (liabilities)		(0.7)		4.6		(0.6)		5.2

66

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

(3) Changes in unrealized gains (losses) included in OCI, including foreign currency translation adjustments related to our Principal International segment, relating to positions still held were:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	10.6	$	3.6	$	4.4	$	(2.1)
Commercial mortgage-backed securities		(0.2)		—		(0.6)		1.1
Collateralized debt obligations		—		0.3		2.1		(0.6)
Total fixed maturities, available-for-sale		10.4		3.9		5.9		(1.6)
Other investments		(0.6)		—		(0.6)		(2.9)
Liabilities
Investment and universal life contracts		0.1		—		0.2		(0.3)

(4) Gross purchases, sales, issuances and settlements were:

	For the three months ended September 30, 2021
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	268.5	$	(3.4)	$	—	$	(36.1)	$	229.0
Commercial mortgage-backed securities		2.7		—		—		—		2.7
Collateralized debt obligations		27.6		—		—		—		27.6
Other debt obligations		—		—		—		(14.0)		(14.0)
Total fixed maturities, available-for-sale		298.8		(3.4)		—		(50.1)		245.3
Other investments		—		(41.1)		—		—		(41.1)
Separate account assets (5)		—		(2.0)		(34.4)		15.3		(21.1)
Liabilities
Investment and universal life contracts		—		—		(3.5)		10.1		6.6
Derivatives
Net derivative assets (liabilities)		—		10.7		—		—		10.7

67

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the three months ended September 30, 2020
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	42.6	$	(4.4)	$	—	$	(10.7)	$	27.5
Collateralized debt obligations		16.0		—		—		0.1		16.1
Other debt obligations		—		—		—		(35.1)		(35.1)
Total fixed maturities, available-for-sale		58.6		(4.4)		—		(45.7)		8.5
Other investments		—		(11.0)		—		—		(11.0)
Separate account assets (5)		4.2		(0.2)		(42.2)		(0.2)		(38.4)
Liabilities
Investment and universal life contracts		—		—		(6.3)		6.7		0.4
Derivatives
Net derivative assets (liabilities)		—		(0.9)		—		—		(0.9)

	For the nine months ended September 30, 2021
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	469.3	$	(14.3)	$	—	$	(100.7)	$	354.3
Commercial mortgage-backed securities		2.7		—		—		(0.1)		2.6
Collateralized debt obligations		362.0		—		—		(24.5)		337.5
Other debt obligations		25.1		—		—		(28.3)		(3.2)
Total fixed maturities, available-for-sale		859.1		(14.3)		—		(153.6)		691.2
Other investments		—		(41.1)		—		—		(41.1)
Separate account assets (5)		36.7		(7,795.2)		(175.4)		92.4		(7,841.5)
Liabilities
Investment and universal life contracts		—		—		(11.7)		34.7		23.0
Derivatives
Net derivative assets (liabilities)		—		11.3		—		—		11.3

68

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the nine months ended September 30, 2020
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	77.5	$	(5.4)	$	—	$	(33.8)	$	38.3
Collateralized debt obligations		157.8		—		—		0.3		158.1
Other debt obligations		14.3		—		—		(52.1)		(37.8)
Total fixed maturities, available-for-sale		249.6		(5.4)		—		(85.6)		158.6
Other investments		0.3		(11.0)		—		—		(10.7)
Separate account assets (5)		72.2		(185.8)		(269.0)		44.4		(338.2)
Liabilities
Investment and universal life contracts		—		—		(18.5)		16.1		(2.4)
Derivatives
Net derivative assets (liabilities)		—		(3.4)		—		—		(3.4)

(5) Issuances and settlements include amounts related to mortgage encumbrances associated with real estate in our separate accounts.

Transfers

Transfers of assets and liabilities measured at fair value on a recurring basis between fair value hierarchy levels were as follows:

	For the three months ended September 30, 2021
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	25.1	$	—	$	—
Collateralized debt obligations		—		—		—		172.8
Other debt obligations		—		—		—		25.0
Total fixed maturities, available-for-sale		—		25.1		—		197.8

	For the three months ended September 30, 2020
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	—	$	—	$	24.5
Commercial mortgage-backed securities		—		0.3		—		—
Other debt obligations		—		—		—		6.8
Total fixed maturities, available-for-sale		—		0.3		—		31.3

69

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the nine months ended September 30, 2021
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	167.6	$	—	$	—
Collateralized debt obligations		—		84.1		—		398.2
Other debt obligations		—		20.6		—		25.0
Total fixed maturities, available-for-sale		—		272.3		—		423.2

	For the nine months ended September 30, 2020
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	342.0	$	—	$	173.4
Commercial mortgage-backed securities		—		0.3		—		—
Collateralized debt obligations		—		—		—		314.6
Other debt obligations		—		46.1		—		68.9
Total fixed maturities, available-for-sale		—		388.4		—		556.9
Fixed maturities, trading		—		—		—		0.3
Derivatives
Net derivative assets (liabilities)		—		—		—		26.5

Assets transferred into Level 3 during the three and nine months ended September 30, 2021 and 2020, primarily included those assets for which we are now unable to obtain pricing from a recognized third party pricing vendor as well as assets that were previously priced using a matrix valuation approach that may no longer be relevant when applied to asset-specific situations.

Assets transferred out of Level 3 during the three and nine months ended September 30, 2021 and 2020, primarily included those assets for which we are now able to obtain pricing from a recognized third party pricing vendor or from internal models using substantially all market observable information.

Quantitative Information about Level 3 Fair Value Measurements

The following table provides quantitative information about the significant unobservable inputs used for recurring fair value measurements categorized within Level 3, excluding assets and liabilities for which significant quantitative unobservable inputs are not developed internally, which primarily consists of those valued using broker quotes. Refer to “Assets and liabilities measured at fair value on a recurring basis” for a complete valuation hierarchy summary.

70

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	September 30, 2021
	Assets /
	(liabilities)
	measured at		Valuation	Unobservable	Input/range of				Weighted
	fair value		technique(s)	input description	inputs				average
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	746.9	Discounted cash flow	Discount rate (1)	0.7	%   -	18.6	%	7.0	%
				Illiquidity premium	0	basis points (“bps”)-	70	bps	7	bps
				Potential loss severity			16.4	%	16.4	%
				Probability of default			100.0	%	100.0	%
Commercial mortgage-backed securities		2.7	Discounted cash flow	Discount rate (1)			3.9	%	3.9	%
Collateralized debt obligations		1.0	Discounted cash flow	Discount rate (1)			3.0	%	3.0	%
				Illiquidity premium			291	bps	291	bps
Other debt obligations		22.2	Discounted cash flow	Discount rate (1)	2.5	%   -	10.0	%	2.8	%
				Illiquidity premium	225	bps-	500	bps	235	bps
Other investments		1.3	Market comparables - other investments	Revenue multiples (2)	6.8	x    -	9.1	x	8.0	x
Separate account assets		1,268.0	Discounted cash flow - mortgage loans	Discount rate (1)			1.2	%	1.2	%
				Illiquidity premium			60	bps	60	bps
				Credit spread rate			109	bps	109	bps
			Discounted cash flow - real estate	Discount rate (1)	5.5	%   -	11.9	%	7.5	%
				Terminal capitalization rate	4.5	%   -	9.3	%	5.9	%
				Average market rent growth rate	1.5	%   -	3.6	%	2.8	%
			Discounted cash flow - real estate debt	Loan to value	29.0	%   -	60.2	%	43.6	%
				Market interest rate	2.3	%   -	4.5	%	2.8	%

Liabilities
Investment and universal life contracts (6)	(355.3)	Discounted cash flow	Long duration interest rate	1.9	%   -	2.1	%	(3)	2.0%
			Long-term equity market volatility	17.9	%   -	32.0	%		22.1%
			Nonperformance risk	0.2	%   -	1.0	%		0.8%
			Utilization rate	See note (4)
			Lapse rate	0.0	%   -	17.0	%		5.1%
			Mortality rate	See note (5)

71

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	December 31, 2020
	Assets /
	(liabilities)
	measured at		Valuation	Unobservable	Input/range of					Weighted
	fair value		technique(s)	input description	inputs					average
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	286.1	Discounted cash flow	Discount rate (1)		0.9	%   -	11.7	%	7.3	%
				Illiquidity premium		0	bps-	60	bps	19	bps
				Comparability adjustment		0	bps-	769	bps	359	bps
				Potential loss severity				54.6	%	54.6	%
				Probability of default				100.0	%	100.0	%
Commercial mortgage-backed securities		1.1	Discounted cash flow	Probability of default				100.0	%	100.0	%
				Potential loss severity				78.4	%	78.4	%
Collateralized debt obligations		0.7	Discounted cash flow	Potential loss severity				40.5	%	40.5	%
				Probability of default				100.0	%	100.0	%
Other debt obligations		0.8	Discounted cash flow	Discount rate (1)				10.0	%	10.0	%
				Illiquidity premium				500	bps	500	bps
Other investments		30.4	Discounted cash flow - other investments	Discount rate (1)		25.0	%   -	30.0	%	27.5	%
				Terminal earnings before interest, taxes, depreciation and amortization multiple		3.8	x    -	4.7	x	4.2	x
			Market comparables - other investments	Revenue multiples (2)		6.0	x    -	8.0	x	7.0	x
			Discounted cash flow - real estate	Discount rate (1)				6.5	%	6.5	%
				Terminal capitalization rate				5.3	%	5.3	%
				Average market rent growth rate				2.6	%	2.6	%
			Discounted cash flow - real estate debt	Loan to value				52.6	%	52.6	%
				Credit spread				3.3	%	3.3	%
Separate account assets		8,893.2	Discounted cash flow - mortgage loans	Discount rate (1)				1.2	%	1.2	%
				Illiquidity premium				60	bps	60	bps
				Credit spread rate				110	bps	110	bps
			Discounted cash flow - real estate	Discount rate (1)		5.6	%   -	11.9	%	6.9	%
				Terminal capitalization rate		4.5	%   -	9.3	%	5.7	%
				Average market rent growth rate		1.5	%   -	4.8	%	3.0	%
			Discounted cash flow - real estate debt	Loan to value		6.3	%   -	74.2	%	47.5	%
				Market interest rate		2.0	%   -	5.0	%	3.4	%

72

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	December 31, 2020
	Assets /
	(liabilities)
	measured at		Valuation	Unobservable	Input/range of					Weighted
	fair value		technique(s)	input description	inputs					average
	(in millions)
Liabilities
Investment and universal life contracts (6)		(467.8)	Discounted cash flow	Long duration interest rate		1.2	%   -	1.4	% (3)	1.3	%
				Long-term equity market volatility		17.6	%   -	26.9	%	19.6	%
				Nonperformance risk		0.1	%   -	1.4	%	0.9	%
				Utilization rate		See note (4)
				Lapse rate		0.0	%   -	16.0	%	5.8	%
				Mortality rate		See note (5)

(1) Represents market comparable interest rate or an index adjusted rate used as the base rate in the discounted cash flow analysis prior to any illiquidity or other adjustments, where applicable.

(2) Revenue multiples are amounts used when we have determined market participants would use such multiples to value the investments.

(3) Represents the range of rate curves used in the valuation analysis that we have determined market participants would use when pricing the instrument. Derived from interpolation between various observable swap rates.

(4) This input factor is the number of contractholders taking withdrawals as well as the amount and timing of the withdrawals and a range does not provide a meaningful presentation.

(5) This input is based on an appropriate industry mortality table and a range does not provide a meaningful presentation.

(6) Includes bifurcated embedded derivatives that are reported at net asset (liability) fair value within the same line item in the consolidated statements of financial position in which the host contract is reported.

Market comparable discount rates are used as the base rate in the discounted cash flows used to determine the fair value of certain assets. The use of a higher or lower discount rate would have caused the fair value of the assets to significantly decrease or increase, respectively. Additionally, we may adjust the base discount rate or the modeled price by applying an illiquidity premium given the highly structured nature of certain assets. The use of a higher or lower illiquidity premium would have caused significant decreases or increases, respectively, in the fair value of the asset.

Embedded derivatives within our investment and universal life contracts liability can be in either an asset or liability position, depending on certain inputs at the reporting date. Increases to an asset or decreases to a liability are described as increases to fair value. The use of a higher or lower market volatility would have caused significant decreases or increases, respectively, in the fair value of embedded derivatives in investment and universal life contracts. Long duration interest rates are used as the mean return when projecting the growth in the value of associated account value and impact the discount rate used in the discounted future cash flows valuation. The amount of claims will increase if account value is not sufficient to cover guaranteed withdrawals. The use of higher or lower risk-free rates would have caused the fair value of the embedded derivative to significantly increase or decrease, respectively. The use of a higher or lower rate for our own credit risks, which impact the rates used to discount future cash flows, would have significantly increased or decreased, respectively, the fair value of the embedded derivative.

The use of a lower or higher mortality rate assumption would have caused the fair value of the embedded derivative to decrease or increase, respectively. The use of a lower or higher overall lapse rate assumption would have caused the fair value of the embedded derivative to decrease or increase, respectively. The lapse rate assumption may vary dynamically based on the relationship of the guarantee and associated account value. A stronger or weaker dynamic lapse rate assumption would have caused the fair value of the embedded derivative to decrease or increase, respectively. The utilization rate assumption includes how many contractholders will take withdrawals, when they will take them and how much of their benefit they will take. The use of a higher or lower assumption of the number of contractholders taking withdrawals would have caused the fair value of the embedded derivative to decrease or increase, respectively. Assuming contractholders take withdrawals earlier or later would have caused the fair value of the embedded derivative to decrease or increase, respectively. Assuming contractholders take more or less of their benefit would have caused the fair value of the embedded derivative to decrease or increase, respectively.

73

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

No significant assets and liabilities were measured at fair value on a nonrecurring basis for the three and nine months ended September 30, 2021 and 2020.

Fair Value Option

We elected fair value accounting for certain real estate ventures that were subject to the equity method of accounting because the nature of the investments was to add value to the properties and generate income from the operations of the properties. Other equity method real estate investments were not fair valued because the investments mainly generated income from the operations of the underlying properties. The last equity method real estate investment for which the fair value option was elected was sold in the third quarter of 2021.

The following tables present information regarding the assets and liabilities for which the fair value option was elected.

	September 30, 2021		December 31, 2020
	(in millions)
Real estate ventures (1)
Fair value	$	—	$	28.5

(1) Reported with other investments in the consolidated statements of financial position.

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in millions)
Real estate ventures
Change in fair value pre-tax gain (1)	$	(0.1)	$	1.7	$	12.6	$	4.0

(1) Reported in net investment income on the consolidated statements of operations.

Financial Instruments Not Reported at Fair Value

The carrying value and estimated fair value of financial instruments not recorded at fair value on a recurring basis but required to be disclosed at fair value were as follows:

	September 30, 2021
					Fair value hierarchy level
	Carrying amount		Fair value		Level 1		Level 2		Level 3
	(in millions)
Assets (liabilities)
Mortgage loans	$	19,426.0	$	20,504.4	$	—	$	—	$	20,504.4
Policy loans		762.1		961.7		—		—		961.7
Other investments		344.7		334.5		—		244.2		90.3
Cash and cash equivalents		1,358.5		1,358.5		1,334.4		24.1		—
Investment contracts		(36,067.9)		(36,717.2)		—		(7,500.2)		(29,217.0)
Short-term debt		(74.3)		(74.3)		—		(74.3)		—
Long-term debt		(4,279.7)		(4,827.7)		—		(4,788.3)		(39.4)
Separate account liabilities		(161,410.9)		(160,362.4)		—		—		(160,362.4)
Bank deposits (1)		(385.3)		(387.8)		—		(387.8)		—
Cash collateral payable		(176.9)		(176.9)		(176.9)		—		—

74

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	December 31, 2020
					Fair value hierarchy level
	Carrying amount		Fair value		Level 1		Level 2		Level 3
	(in millions)
Assets (liabilities)
Mortgage loans	$	17,343.0	$	18,762.6	$	—	$	—	$	18,762.6
Policy loans		784.0		1,037.7		—		—		1,037.7
Other investments		347.2		338.5		—		247.1		91.4
Cash and cash equivalents		1,383.4		1,383.4		1,369.7		13.7		—
Investment contracts		(35,449.9)		(36,738.7)		—		(5,276.9)		(31,461.8)
Short-term debt		(84.7)		(84.7)		—		(84.7)		—
Long-term debt		(4,279.2)		(4,949.9)		—		(4,908.7)		(41.2)
Separate account liabilities		(160,316.4)		(159,129.2)		—		—		(159,129.2)
Bank deposits (1)		(423.5)		(429.7)		—		(429.7)		—
Cash collateral payable		(224.6)		(224.6)		(224.6)		—		—

(1) Excludes deposit liabilities without defined or contractual maturities.

11. Segment Information

We provide financial products and services through the following segments: Retirement and Income Solutions, Principal Global Investors, Principal International and U.S. Insurance Solutions. In addition, we have a Corporate segment. The segments are managed and reported separately because they provide different products and services, have different strategies or have different markets and distribution channels.

The Retirement and Income Solutions segment provides retirement and related financial products and services primarily to businesses, their employees and other individuals. The segment is organized into Retirement and Income Solutions – Fee, which includes full service accumulation, trust services, individual variable annuities, the pieces of the Institutional Retirement & Trust (“IRT”) business of Wells Fargo Bank, N.A. (“Acquired Business”) that have not yet migrated to Principal (migration of retirement business completed in the second quarter of 2021; remaining migration estimated to be completed in 2022) and acquisition, integration and migration expenses associated with the purchase of the Acquired Business; and Retirement and Income Solutions – Spread, which includes individual fixed annuities, investment only, pension risk transfer and banking services.

The Principal Global Investors segment provides asset management services to our asset accumulation business, our insurance operations, the Corporate segment and third party clients. This segment also includes our mutual fund business.

The Principal International segment has operations in Latin America (Brazil, Chile and Mexico) and Asia (China, Hong Kong Special Administrative Region, India and Southeast Asia). We focus on locations with large middle classes, favorable demographics and growing long-term savings, ideally with voluntary or mandatory pension markets. We entered these locations through acquisitions, start-up operations and joint ventures.

The U.S. Insurance Solutions segment focuses on solutions for small-to-medium sized businesses and their employees. The segment is organized into Specialty Benefits insurance, which provides group dental and vision insurance, individual and group disability insurance, critical illness, accident, group life insurance and non-medical fee-for-service claims administration; and Individual Life insurance, which provides universal life, variable universal life, indexed universal life and traditional life insurance.

Our Corporate segment manages the assets representing capital that has not been allocated to any other segment. Financial results of the Corporate segment primarily reflect our financing activities (including financing costs), income on capital not allocated to other segments, inter-segment eliminations, income tax risks and certain income, expenses and other adjustments not allocated to the segments based on the nature of such items. Results of Principal Securities, Inc. (“PSI”), our retail broker-dealer and registered investment advisor (“RIA”); RobustWealth, Inc. (“RobustWealth”), our financial technology company; and our exited group medical and long-term care insurance businesses are reported in this segment.

75

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Management uses segment pre-tax operating earnings in evaluating performance, which is consistent with the financial results provided to and discussed with securities analysts. We determine segment pre-tax operating earnings by adjusting U.S. GAAP income before income taxes for pre-tax net realized capital gains (losses), as adjusted, pre-tax other adjustments that management believes are not indicative of overall operating trends and certain adjustments related to equity method investments and noncontrolling interest. While these items may be significant components in understanding and assessing the consolidated financial performance, management believes the presentation of pre-tax operating earnings enhances the understanding of our results of operations by highlighting pre-tax earnings attributable to the normal, ongoing operations of the business.

The pre-tax net realized capital gains (losses), as adjusted, excluded from pre-tax operating earnings reflects consolidated U.S. GAAP pre-tax net realized capital gains (losses) excluding the following items that are included in pre-tax operating earnings:

● Periodic settlements and accruals on derivative instruments not designated as hedging instruments,

● Certain market value adjustments of derivatives and embedded derivatives and

● Certain market value adjustments of derivative instruments used to economically hedge embedded derivatives.

Pre-tax net realized capital gains (losses), as adjusted, are further adjusted for:

● Amortization of hedge accounting book value adjustments for certain discontinued hedges,

● Certain hedge accounting market value revenue adjustments,

● Certain market value adjustments to fee revenues,

● Pre-tax net realized capital gains (losses) adjustments related to equity method investments,

● Pre-tax net realized capital gains (losses) adjustments related to sponsored investment funds,

● Recognition of deferred front-end fee revenues for sales charges on retirement and life insurance products and services,

● Related changes in the amortization pattern of DAC and related actuarial balances,

● Certain hedge accounting market value expense adjustments and

● Net realized capital gains (losses) distributed.

Segment operating revenues reflect consolidated U.S. GAAP total revenues excluding:

● Net realized capital gains (losses), except periodic settlements and accruals on derivatives not designated as hedging instruments and certain market value adjustments of derivative instruments used to economically hedge embedded derivatives, and their impact on:

● Amortization of hedge accounting book value adjustments for certain discontinued hedges,

● Certain hedge accounting market value revenue adjustments,

● Certain market value adjustments to fee revenues,

● Pre-tax net realized capital gains (losses) adjustments related to equity method investments,

● Pre-tax net realized capital gains (losses) adjustments related to sponsored investment funds and

● Recognition of deferred front-end fee revenues for sales charges on retirement and life insurance products and services.

● Pre-tax other adjustments and income taxes of equity method investments and

● Pre-tax other adjustments management believes are not indicative of overall operating trends.

The accounting policies of the segments are consistent with the accounting policies for the consolidated financial statements, with the exception of: (1) pension and OPEB cost allocations, (2) certain expenses deemed to benefit the entire organization and (3) income tax allocations. For purposes of determining pre-tax operating earnings, the segments are allocated the service component of pension and other postretirement benefit costs. The Corporate segment reflects the non-service components of pension and other postretirement benefit costs as assumptions are established and funding decisions are managed from a company-wide perspective. Additionally, the Corporate segment reflects expenses that benefit the entire organization for which the segments are not able to influence the spend. This includes expenses such as public company costs, executive management costs, acquisition and disposition costs, among others. The Corporate segment functions to absorb the risk inherent in interpreting and applying tax law. For purposes of determining non-GAAP operating earnings, the segments are allocated tax adjustments consistent with the positions we took on tax returns. The Corporate segment results reflect any differences between the tax returns and the estimated resolution of any disputes.

76

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

The following tables summarize select financial information by segment, including operating revenues for our products and services, and reconcile segment totals to those reported in the consolidated financial statements:

	September 30, 2021		December 31, 2020
	(in millions)
Assets:
Retirement and Income Solutions	$	216,039.3	$	207,288.4
Principal Global Investors		2,358.4		2,294.3
Principal International		43,524.9		51,707.6
U.S. Insurance Solutions		32,702.7		31,438.9
Corporate		4,283.1		3,898.5
Total consolidated assets	$	298,908.4	$	296,627.7

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Operating revenues by segment:
Retirement and Income Solutions:
Retirement and Income Solutions – Fee	$	580.9	$	531.6	$	1,723.9	$	1,584.1
Retirement and Income Solutions – Spread		1,072.0		1,048.3		2,823.9		4,081.5
Total Retirement and Income Solutions (1)		1,652.9		1,579.9		4,547.8		5,665.6
Principal Global Investors (2)		465.2		382.8		1,334.1		1,126.5
Principal International		328.1		225.3		942.3		802.2
U.S. Insurance Solutions:
Specialty Benefits insurance		684.4		618.1		2,007.9		1,884.1
Individual Life insurance		505.7		503.3		1,539.1		1,448.8
Eliminations		—		—		(0.1)		(0.1)
Total U.S. Insurance Solutions		1,190.1		1,121.4		3,546.9		3,332.8
Corporate		(14.3)		(17.0)		(21.8)		(24.0)
Total segment operating revenues		3,622.0		3,292.4		10,349.3		10,903.1
Net realized capital gains (losses), net of related revenue adjustments		(188.2)		31.6		(157.0)		105.4
Adjustments related to equity method investments		(10.1)		(13.3)		(20.7)		(31.9)
Total revenues per consolidated statements of operations	$	3,423.7	$	3,310.7	$	10,171.6	$	10,976.6
Pre-tax operating earnings (losses) by segment:
Retirement and Income Solutions	$	243.2	$	281.1	$	811.4	$	700.1
Principal Global Investors		190.1		140.9		515.6		361.0
Principal International		81.0		58.7		203.8		184.0
U.S. Insurance Solutions		151.6		(134.1)		373.4		150.4
Corporate		(97.1)		(69.7)		(273.6)		(244.8)
Total segment pre-tax operating earnings		568.8		276.9		1,630.6		1,150.7
Pre-tax net realized capital gains (losses), as adjusted (3)		(133.5)		9.9		(141.7)		(41.1)
Adjustments related to equity method investments and noncontrolling interest		(7.2)		(11.7)		(14.3)		(7.7)
Income before income taxes per consolidated statements of operations	$	428.1	$	275.1	$	1,474.6	$	1,101.9

(1) Reflects inter-segment revenues of $106.0 million and $87.5 million for the three months ended September 30, 2021 and 2020, respectively, $307.7 million and $249.1 million for the nine months ended September 30, 2021 and 2020, respectively.

(2) Reflects inter-segment revenues of $79.7 million and $65.6 million for the three months ended September 30, 2021 and 2020, respectively, $223.9 million and $200.7 million for the nine months ended September 30, 2021 and 2020, respectively.

77

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

(3) Pre-tax net realized capital gains (losses), as adjusted, is derived as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Net realized capital gains (losses):
Net realized capital gains (losses)	$	(152.0)	$	65.5	$	(41.7)	$	169.5
Derivative and hedging-related revenue adjustments		(30.6)		(37.0)		(108.4)		(85.7)
Market value adjustments to fee revenues		(0.2)		—		(0.6)		—
Adjustments related to equity method investments		(10.8)		0.2		(18.3)		(4.9)
Adjustments related to sponsored investment funds		5.8		5.1		15.9		12.5
Recognition of front-end fee revenue		(0.4)		(2.2)		(3.9)		14.0
Net realized capital gains (losses), net of related revenue adjustments		(188.2)		31.6		(157.0)		105.4
Amortization of deferred acquisition costs and other actuarial balances		9.9		62.1		22.8		(67.7)
Capital gains distributed		(33.0)		(43.7)		(86.3)		(15.7)
Market value adjustments of embedded derivatives		77.8		(40.1)		78.8		(63.1)
Pre-tax net realized capital gains (losses), as adjusted (a)	$	(133.5)	$	9.9	$	(141.7)	$	(41.1)

(a) As adjusted before noncontrolling interest capital gains (losses).

78

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

12. Revenues from Contracts with Customers

The following tables summarize disaggregation of revenues from contracts with customers, including select financial information by segment, and reconcile totals to those reported in the consolidated financial statements. Revenues from contracts with customers are included in fees and other revenues on the consolidated statements of operations.

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Revenue from contracts with customers by segment:
Retirement and Income Solutions:
Retirement and Income Solutions – Fee	$	144.2	$	133.4	$	433.8	$	441.0
Retirement and Income Solutions – Spread		2.4		2.1		7.2		6.2
Total Retirement and Income Solutions		146.6		135.5		441.0		447.2
Principal Global Investors		453.5		377.0		1,303.6		1,108.1
Principal International		125.1		111.1		373.5		322.2
U.S. Insurance Solutions:
Specialty Benefits insurance		3.9		3.9		11.4		11.2
Individual Life insurance		15.8		12.0		44.5		35.8
Eliminations		—		—		(0.1)		(0.1)
Total U.S. Insurance Solutions		19.7		15.9		55.8		46.9
Corporate		51.6		42.4		155.9		111.2
Total segment revenue from contracts with customers		796.5		681.9		2,329.8		2,035.6
Adjustments for fees and other revenues not within the scope of revenue recognition guidance (1)		455.9		463.3		1,385.7		1,283.0
Pre-tax other adjustments (2)		(0.6)		(2.2)		(4.5)		14.0
Total fees and other revenues per consolidated statements of operations	$	1,251.8	$	1,143.0	$	3,711.0	$	3,332.6

(1) Fees and other revenues not within the scope of the revenue recognition guidance primarily represent revenue on contracts accounted for under the financial instruments or insurance contracts standards.

(2) Pre-tax other adjustments relate to the recognition of deferred front-end fee revenues for sales charges on retirement and life insurance products and certain market value adjustments to fee revenues.

Retirement and Income Solutions – Fee

Retirement and Income Solutions – Fee offers service and trust agreements for defined contribution retirement plans, including 401(k) plans, 403(b) plans, and employee stock ownership plans. The investment components of these service agreements are in the form of mutual fund offerings. In addition, plan sponsor retirement plan trust and custody services are also available through an affiliated trust company. With the Acquired Business, services and trust agreements are also offered to non-retirement customers including insurance companies, endowments and other financial institutions.

Fees and other revenues are earned for administrative activities performed for the defined contribution retirement plans including recordkeeping and reporting as well as trust and custody, asset management and investment services. Fees and other revenues are earned for administrative activities performed for non-retirement plan customers including trust and custody services, defined benefit administration and investment management activities. The majority of these activities are performed daily over time. Fee-for-service transactions are also provided upon client request. These services are considered distinct or grouped into a bundle until a distinct performance obligation is identified. Some performance obligations are considered a series of distinct services, which are substantially the same and have the same pattern of transfer to the customer.

79

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Fees and other revenues can be based on a fixed contractual rate for these services or can be variable based upon contractual rates applied to the market value of the client’s investment portfolio each day. If the consideration for this series of performance obligations is based on daily market value, it is considered variable each day as the services are performed over time. The consideration becomes unconstrained and thus recognized as revenue for each day’s series of distinct services once the market value of the clients’ investment portfolios is determined at market close or carried over at the end of the day for days when the market is closed. Additionally, fixed fees and other revenues are recognized point-in-time as fee-for-service transactions upon completion.

The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021			2020
	(in millions)
Administrative service fee revenue	$	144.2	$	132.8	$	431.4	$	439.7
Other fee revenue		—		0.6		2.4		1.3
Total revenues from contracts with customers		144.2		133.4		433.8		441.0
Fees and other revenues not within the scope of revenue recognition guidance		324.1		293.5		964.3		829.1
Total fees and other revenues		468.3		426.9		1,398.1		1,270.1
Premiums and other considerations		—		0.7		0.5		3.4
Net investment income		112.6		104.0		325.3		310.6
Total operating revenues	$	580.9	$	531.6	$	1,723.9	$	1,584.1

Retirement and Income Solutions - Spread

Retirement and Income Solutions – Spread offers individual retirement accounts (“IRAs”) through Principal Bank, which are primarily funded by retirement savings rolled over from qualified retirement plans. The IRAs are held in savings accounts, money market accounts and certificates of deposit. Revenues are earned through fees as the performance of establishing and maintaining IRA accounts is completed. Fee-for-service transactions are also provided upon client request. The establishment fees and annual maintenance fees are accrued into earnings over a period of time using the average account life. Upfront and recurring bank fees are related to performance obligations that have the same pattern of transfer to the customer and are recognized in income over time with control transferred to the customers utilizing the output method. These fees are based on a fixed contractual rate. Fixed fees and other revenues are also recognized point-in-time as fee-for-service transactions upon completion. Additionally, commission income is earned on advisory services provided to customers. The revenues are earned over time as the service is performed based upon contractual rates applied to the market value of the clients’ portfolios.

The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Deposit account fee revenue	$	2.2	$	2.1	$	6.7	$	6.2
Commission income		0.2		—		0.5		—
Total revenues from contracts with customers		2.4		2.1		7.2		6.2
Fees and other revenues not within the scope of revenue recognition guidance		2.1		1.9		6.8		7.8
Total fees and other revenues		4.5		4.0		14.0		14.0
Premiums and other considerations		482.1		517.1		1,111.9		2,497.7
Net investment income		585.4		527.2		1,698.0		1,569.8
Total operating revenues	$	1,072.0	$	1,048.3	$	2,823.9	$	4,081.5

80

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Principal Global Investors

Fees and other revenues earned for asset management, investment advisory and distribution services provided to institutional and retail clients are based largely upon contractual rates applied to the specified amounts of the clients’ portfolios. Each service is a distinct performance obligation, or a series of distinct services that are a single performance obligation in that the services are substantially the same and have the same pattern of transfer to the customer. Fees and other revenues received for performance obligations such as asset management and other services are typically recognized over time utilizing the output method as the service is performed. Performance fees and transaction fees on certain accounts are recognized in income when the probability of significant reversal will not occur upon resolution of the uncertainty, which could be based on a variety of factors such as market performance or other internal metrics. Asset management fees are accrued each month based on the fee terms within the applicable agreement and are generally billed quarterly when values used for the calculation are available. Management fees and performance fees are variable consideration as they are subject to fluctuation based on assets under management (“AUM”) and other constraints. These fees are not recognized until unconstrained at the end of each reporting period.

The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Management fee revenue	$	389.9	$	330.2	$	1,119.9	$	954.7
Other fee revenue		63.6		46.8		183.7		153.4
Total revenues from contracts with customers		453.5		377.0		1,303.6		1,108.1
Fees and other revenues not within the scope of revenue recognition guidance		11.0		4.8		27.1		14.2
Total fees and other revenues		464.5		381.8		1,330.7		1,122.3
Net investment income		0.7		1.0		3.4		4.2
Total operating revenues	$	465.2	$	382.8	$	1,334.1	$	1,126.5

Principal International

Fees and other revenues are earned for asset management and distribution services provided to retail and institutional clients in addition to trustee and/or administrative services performed for retirement savings plans. Each service is considered a distinct performance obligation; however, if the services are not distinct on their own, we combine them into a distinct bundle or we have a series of distinct services that are substantially the same and have the same pattern of transfer to the customer. Fees and other revenues are typically based upon contractual rates applied to the market value of the clients’ investment portfolios and are considered variable consideration. The transaction price generally includes the amount determined at the end of the reporting period, whereby fees are deducted from the clients’ investment portfolios and are recognized as revenue when no longer constrained and satisfied as the services are performed over time utilizing the output method. In addition, payments to customers can take the form of an incentive given by us to entice the customer to purchase its goods or services. Incentives offered to customers are recognized as part of the transaction price as a reduction of revenue either over the period the customer remains in order to receive the incentive or monthly throughout the life of the contract.

Incentive-based fees are recognized in income when the probability of significant reversal will not occur upon the resolution of the uncertainty, which is based on market performance.

Fees for managing customers’ mandatory retirement savings accounts in Chile are collected with each monthly deposit made by our customers. If a customer stops contributing before retirement age, we collect no fees but services are still provided. We recognize revenue from these contracts as services are performed over the life of the contract and review annually.

81

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Management fee revenue	$	123.0	$	110.1	$	367.8	$	319.3
Other fee revenue		2.1		1.0		5.7		2.9
Total revenues from contracts with customers		125.1		111.1		373.5		322.2
Fees and other revenues not within the scope of revenue recognition guidance		1.0		1.4		3.1		4.2
Total fees and other revenues		126.1		112.5		376.6		326.4
Premiums and other considerations		36.6		16.6		105.8		130.2
Net investment income		165.4		96.2		459.9		345.6
Total operating revenues	$	328.1	$	225.3	$	942.3	$	802.2
Revenues from contracts with customers by region:
Latin America	$	91.5	$	80.7	$	273.3	$	236.5
Asia		33.5		30.5		99.3		85.8
Principal International corporate / regional offices		0.5		0.2		2.0		0.7
Eliminations		(0.4)		(0.3)		(1.1)		(0.8)
Total revenues from contracts with customers	$	125.1	$	111.1	$	373.5	$	322.2

U.S. Insurance Solutions

Fees and other revenues are earned for administrative services performed including recordkeeping and reporting services for fee-for-service products, nonqualified benefit plans, separate accounts and dental networks. Services within contracts are not distinct on their own; however, we combine the services into a distinct bundle and account for the bundle as a single performance obligation, which is satisfied over time utilizing the output method as services are rendered. The transaction price corresponds with the performance completed to date, for which the value is recognized as revenue during the period. Variability of consideration is resolved at the end of each period and payments are due when billed.

Commission income is earned through sponsored brokerage services. Performance obligations are satisfied at a point in time, upon delivery of a placed case, and the transaction price calculated per the compensation schedule is recognized as revenue.

The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Specialty Benefits insurance:
Administrative service fees	$	3.9	$	3.9	$	11.4	$	11.2
Total revenues from contracts with customers		3.9		3.9		11.4		11.2
Fees and other revenues not within the scope of revenue recognition guidance		5.4		4.9		14.9		14.4
Total fees and other revenues		9.3		8.8		26.3		25.6
Premiums and other considerations		629.6		570.9		1,851.7		1,741.8
Net investment income		45.5		38.4		129.9		116.7
Total operating revenues	$	684.4	$	618.1	$	2,007.9	$	1,884.1

82

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Individual Life insurance:
Administrative service fees	$	6.8	$	5.4	$	19.3	$	16.1
Commission income		9.0		6.6		25.2		19.7
Total revenues from contracts with customers		15.8		12.0		44.5		35.8
Fees and other revenues not within the scope of revenue recognition guidance		204.1		232.6		635.8		634.4
Total fees and other revenues		219.9		244.6		680.3		670.2
Premiums and other considerations		82.2		79.0		265.4		255.3
Net investment income		203.6		179.7		593.4		523.3
Total operating revenues	$	505.7	$	503.3	$	1,539.1	$	1,448.8

Corporate

Fees and other revenues are earned on the performance of selling and servicing of securities and related products offered through PSI, an introducing broker-dealer registered with the FINRA.

PSI enters into selling and distribution agreements with the obligation to sell or distribute the securities products, such as mutual funds, annuities and products sold through RIAs, to individual clients in return for front-end sales charges, 12b-1 service fees, annuity fees and asset-based fees. Front-end sales charges, 12b-1 fees and annuity fees are related to a single sale and are earned at the time of sale. PSI also enters into agreements with individual customers to provide securities trade execution and custody through a brokerage services platform in return for ticket charge and other service fee revenue. These services are bundled as one single distinct service referred to as brokerage services. This revenue is related to distinct transactions and is earned at a point in time.

PSI also enters into agreements with individual customers to provide trade execution, clearing services, custody services and investment research services through our proprietary offered fee-based products. These services are bundled as one single distinct service referred to as advisory services. In addition, for outside RIA business PSI performs sales and distribution services only. The revenues are earned over time as the service is performed utilizing the output method.

A majority of our revenue is based upon contractual rates applied to the market value of the clients’ portfolios and considered variable consideration.

The Corporate segment also includes inter-segment eliminations of fees and other revenues. The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021			2020
	(in millions)
Commission income	$	99.8	$	78.0	$	287.5	$	231.0
Other fee revenue		17.3		13.6		51.0		38.3
Eliminations		(65.5)		(49.2)		(182.6)		(158.1)
Total revenues from contracts with customers		51.6		42.4		155.9		111.2
Fees and other revenues not within the scope of revenue recognition guidance		(91.8)		(75.8)		(266.3)		(221.1)
Total fees and other revenues		(40.2)		(33.4)		(110.4)		(109.9)
Net investment income		25.9		16.4		88.6		85.9
Total operating revenues	$	(14.3)	$	(17.0)	$	(21.8)	$	(24.0)

83

Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Contract Costs

Sales compensation and other incremental costs of obtaining a contract are capitalized and amortized over the period of contract benefit if the costs are expected to be recovered. The contract cost asset, which is included in other assets on the consolidated statements of financial position, was $187.2 million and $173.0 million as of September 30, 2021 and December 31, 2020, respectively.

We apply the practical expedient for certain costs where we recognize the incremental costs of obtaining these contracts as an expense when incurred if the amortization period of the assets is one year or less. These costs, along with costs that are not deferrable, are included in operating expenses on the consolidated statements of operations.

Deferred contract costs consist primarily of commissions and variable compensation. We amortize capitalized contract costs on a straight-line basis over the expected contract life, reflecting lapses as they are incurred. Deferred contract costs are subject to impairment testing on an annual basis, or when a triggering event occurs that could warrant an impairment. To the extent future revenues less future maintenance expenses are not adequate to cover the asset balance, an impairment is recognized. Amortization expense of $8.0 million and $5.6 million for the three months ended September 30, 2021 and 2020 and $24.1 million and $17.6 million for the nine months ended September 30, 2021 and 2020, respectively, was recorded in operating expenses on the consolidated statements of operations and no impairment loss was recognized in relation to the costs capitalized.

13. Stock-Based Compensation Plans

As of September 30, 2021, we had the 2021 Stock Incentive Plan, the 2020 Directors Stock Plan, the 2014 Stock Incentive Plan, the Employee Stock Purchase Plan, the 2014 Directors Stock Plan, the Amended and Restated 2010 Stock Incentive Plan, the 2005 Directors Stock Plan, the Stock Incentive Plan and the Directors Stock Plan (“Stock-Based Compensation Plans”). No new grants will be made under the 2020 Directors Stock Plan, the 2014 Stock Incentive Plan, the 2014 Directors Stock Plan, the Amended and Restated 2010 Stock Incentive Plan, the 2005 Directors Stock Plan, the Stock Incentive Plan or the Directors Stock Plan. Under the terms of the 2021 Stock Incentive Plan grants may be nonqualified stock options, incentive stock options qualifying under Section 422 of the Internal Revenue Code, restricted stock, restricted stock units, stock appreciation rights, performance shares, performance units or other stock-based awards. To date, we have not granted any incentive stock options, restricted stock or performance units under any plans.

As of September 30, 2021, the maximum number of new shares of common stock available for grant under the 2021 Stock Incentive Plan was 24.4 million.

For awards with graded vesting, we use an accelerated expense attribution method. The compensation cost that was charged against net income for stock-based awards granted under the Stock-Based Compensation Plans was as follows:

	For the nine months ended September 30,
	2021		2020
	(in millions)
Compensation cost	$	74.1	$	67.0
Related income tax benefit		15.3		13.1
Capitalized as part of an asset		1.1		1.2

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Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

Nonqualified Stock Options

Nonqualified stock options were granted to certain employees under the 2014 Stock Incentive Plan. Total options granted were 0.9 million for the nine months ended September 30, 2021. The fair value of stock options is estimated using the Black-Scholes option pricing model. The following is a summary of the assumptions used in this model for the stock options granted during the period:

	For the nine months ended
	September 30, 2021
Expected volatility		34.2	%
Expected term (in years)		7.0
Risk-free interest rate		1.2	%
Expected dividend yield		3.82	%
Weighted average estimated fair value per common share	$	15.67

As of September 30, 2021, we had $5.8 million of total unrecognized compensation cost related to nonvested stock options. The cost is expected to be recognized over a weighted-average service period of approximately 1.5 years.

Performance Share Awards

Performance share awards were granted to certain employees under the 2014 Stock Incentive Plan. Total performance share awards granted were 0.3 million for the nine months ended September 30, 2021. The performance share awards granted represent initial target awards and do not reflect potential increases or decreases resulting from the final performance results to be determined at the end of the performance period. The actual number of common shares to be awarded at the end of each performance period will range between 0% and 150% of the initial target awards. The fair value of performance share awards is determined based on the closing stock price of our common shares on the grant date. The weighted-average grant date fair value of these performance share awards granted was $58.68 per common share.

As of September 30, 2021, we had $8.7 million of total unrecognized compensation cost related to nonvested performance share awards granted. The cost is expected to be recognized over a weighted-average service period of approximately 1.5 years.

Restricted Stock Units

Restricted stock units were issued to certain employees pursuant to the 2021 Stock Incentive Plan and the 2014 Stock Incentive Plan and were issued to non-employee directors pursuant to the 2021 Stock Incentive Plan and the 2020 Directors Stock Plan. Total restricted stock units granted were 1.1 million for the nine months ended September 30, 2021. The fair value of restricted stock units is determined based on the closing stock price of our common shares on the grant date. The weighted-average grant date fair value of these restricted stock units granted was $59.11 per common share.

As of September 30, 2021, we had $63.9 million of total unrecognized compensation cost related to nonvested restricted stock unit awards granted. The cost is expected to be recognized over a weighted-average period of approximately 1.7 years.

Employee Stock Purchase Plan

Under the Employee Stock Purchase Plan, employees purchased 0.8 million shares for the nine months ended September 30, 2021. The weighted average fair value of the discount on the stock purchased was $15.47 per share.

As of September 30, 2021, a total of 4.2 million of new shares were available to be made issuable by us for this plan.

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Principal Financial Group, Inc.
Notes to Condensed Consolidated Financial Statements — (continued)
September 30, 2021
(Unaudited)

14. Earnings Per Common Share

The computations of the basic and diluted per share amounts were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions, except per share data)
Net income	$	364.3	$	235.9	$	1,252.2	$	937.0
Subtract:
Net income attributable to noncontrolling interest		4.4		(0.1)		13.4		13.8
Total	$	359.9	$	236.0	$	1,238.8	$	923.2
Weighted-average shares outstanding:
Basic		268.0		274.8		270.7		274.7
Dilutive effects:
Stock options		1.3		0.4		1.2		0.3
Restricted stock units		2.2		1.5		2.0		1.3
Performance share awards		0.4		0.1		0.5		0.1
Diluted		271.9		276.8		274.4		276.4
Net income per common share:
Basic	$	1.34	$	0.86	$	4.58	$	3.36
Diluted	$	1.32	$	0.85	$	4.51	$	3.34

The calculation of diluted earnings per share for the three and nine months ended September 30, 2021 and 2020, excludes the incremental effect related to certain outstanding stock-based compensation grants due to their anti-dilutive effect.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following analysis discusses our financial condition as of September 30, 2021, compared with December 31, 2020, and our consolidated results of operations for the three and nine months ended September 30, 2021 and 2020, prepared in conformity with U.S. GAAP. The discussion and analysis includes, where appropriate, factors that may affect our future financial performance. The discussion should be read in conjunction with our Form 10-K, for the year ended December 31, 2020, filed with the SEC and the unaudited condensed consolidated financial statements and the related notes to the financial statements and the other financial information included elsewhere in this Form 10-Q.

Forward-Looking Information

Our narrative analysis below contains forward-looking statements intended to enhance the reader’s ability to assess our future financial performance. Forward-looking statements include, but are not limited to, statements that represent our beliefs concerning future operations, strategies, financial results or other developments, and contain words and phrases such as “anticipate,” “believe,” “plan,” “estimate,” “expect,” “intend” and similar expressions. Forward-looking statements are made based upon management’s current expectations and beliefs concerning future developments and their potential effects on us. Such forward-looking statements are not guarantees of future performance.

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Actual results may differ materially from those included in the forward-looking statements as a result of risks and uncertainties including, but not limited to, the following: (1) adverse capital and credit market conditions may significantly affect our ability to meet liquidity needs, as well as our access to capital and cost of capital; (2) conditions in the global capital markets and the economy generally may materially and adversely affect our business and results of operations; (3) volatility or declines in the equity, bond or real estate markets could reduce our AUM and may result in investors withdrawing from the markets or decreasing their rates of investment, all of which could reduce our revenues and net income; (4) changes in interest rates or credit spreads or a sustained low interest rate environment may adversely affect our results of operations, financial condition and liquidity, and our net income can vary from period to period; (5) the elimination of LIBOR may affect the value of certain derivatives and floating rate securities we hold or have issued and the profitability of certain real estate lending activity or businesses; (6) our investment portfolio is subject to several risks that may diminish the value of our invested assets and the investment returns credited to customers, which could reduce our sales, revenues, AUM and net income; (7) our valuation of investments and the determinations of the amount of allowances and impairments taken on our investments may include methodologies, estimations and assumptions which are subject to differing interpretations and, if changed, could materially adversely affect our results of operations or financial condition; (8) any impairments of or valuation allowances against our deferred tax assets could adversely affect our results of operations and financial condition; (9) we may face losses on our insurance and annuity products if our actual experience differs significantly from our pricing and reserving assumptions; (10) the pattern of amortizing our DAC asset and other actuarial balances on our universal life-type insurance contracts, participating life insurance policies and certain investment contracts may change, impacting both the level of our DAC asset and other actuarial balances and the timing of our net income; (11) changes in laws or regulations may reduce our profitability or impact how we do business; (12) our ability to pay stockholder dividends and meet our obligations may be constrained by the limitations on dividends Iowa insurance laws impose on Principal Life; (13) changes in accounting standards may adversely affect our reported results of operations and financial condition; (14) litigation and regulatory investigations may affect our financial strength or reduce our profitability; (15) from time to time we may become subject to tax audits, tax litigation or similar proceedings, and as a result we may owe additional taxes, interest and penalties in amounts that may be material; (16) applicable laws and our certificate of incorporation and by-laws may discourage takeovers and business combinations that some stockholders might consider in their best interests; (17) competition, including from companies that may have greater financial resources, broader arrays of products, higher ratings and stronger financial performance, may impair our ability to retain existing customers, attract new customers and maintain our profitability; (18) a downgrade in our financial strength or credit ratings may increase policy surrenders and withdrawals, reduce new sales, terminate relationships with distributors, impact existing liabilities and increase our cost of capital, any of which could adversely affect our profitability and financial condition; (19) client terminations or withdrawals or changes in investor preferences may lead to a reduction in revenues for our asset management and accumulation businesses; (20) guarantees within certain of our products that protect policyholders may decrease our net income or increase the volatility of our results of operations or financial position under U.S. GAAP if our hedging or risk management strategies prove ineffective or insufficient; (21) our international businesses face political, legal, operational and other risks that could reduce our profitability in those businesses; (22) we face risks arising from our participation in joint ventures; (23) we may need to fund deficiencies in our Closed Block assets; (24) the ongoing COVID-19 pandemic and the resulting financial market impacts could adversely affect our business, results of operations, financial condition and liquidity; (25) our reinsurers could default on their obligations or increase their rates, which could adversely impact our net income and financial condition; (26) we face risks related to our acquisition of Wells Fargo Bank, N.A.’s IRT business; (27) we face risks arising from future acquisitions of businesses; (28) a pandemic, terrorist attack, military action or other catastrophic event could adversely affect our operations, net income or financial condition; (29) our financial results may be adversely impacted by global climate changes; (30) technological and societal changes may disrupt our business model and impair our ability to retain existing customers, attract new customers and maintain our profitability; (31) damage to our reputation may adversely affect our revenues and profitability; (32) we may not be able to protect our intellectual property and may be subject to infringement claims; (33) if we are unable to attract, develop and retain qualified employees and sales representatives and develop new distribution sources, our results of operations, financial condition and sales of our products may be adversely impacted; (34) interruptions in information technology, infrastructure or other internal or external systems used for our business operations, or a failure to maintain the confidentiality, integrity or availability of data residing on such systems, could disrupt our business, damage our reputation and adversely impact our profitability; (35) loss of key vendor relationships or failure of a vendor to protect information of our customers or employees could adversely affect our business or result in losses and (36) our enterprise risk management framework may not be fully effective in identifying or mitigating all of the risks to which we are exposed.

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Overview

We provide financial products and services through the following reportable segments:

● Retirement and Income Solutions is organized into Retirement and Income Solutions – Fee, which includes full service accumulation, trust services, individual variable annuities, the pieces of the Acquired Business that have not yet migrated to Principal (migration of retirement business completed in second quarter 2021; remaining migration estimated to be completed in 2022) and acquisition, integration and migration expenses associated with the purchase of the Acquired Business; and Retirement and Income Solutions – Spread, which includes individual fixed annuities, investment only, pension risk transfer and banking services. We offer a comprehensive portfolio of products and services for retirement savings and retirement income:

● To businesses of all sizes, we offer products and services for defined contribution plans, including 401(k) and 403(b) plans, defined benefit pension plans, nonqualified executive benefit plans, employee stock ownership plan services and pension closeout services. For more basic retirement services, we offer SIMPLE IRAs and payroll deduction plans;

● To large institutional clients, we also offer investment only products, including investment only guaranteed investment contracts (“GICs”); and

● To employees of businesses and other individuals, we offer the ability to accumulate savings for retirement and other purposes through mutual funds, individual annuities and bank products, along with retirement income options.

● Principal Global Investors, which includes our mutual fund business, manages assets for sophisticated investors around the world using focused investment teams that provide diverse investment capabilities including equity, fixed income, real estate and other alternative investments. We also have experience in asset allocation, stable value management and other structured investment strategies. We focus on providing services to our other segments in addition to our retail mutual fund and third party institutional clients.

● Principal International, which offers pension accumulation products and services, mutual funds, asset management, income annuities and life insurance accumulation products through operations in Latin America (Brazil, Chile and Mexico) and Asia (China, Hong Kong Special Administrative Region, India and Southeast Asia).

● U.S. Insurance Solutions is organized into Specialty Benefits insurance, which provides group dental and vision insurance, individual and group disability insurance, critical illness, accident, group life insurance and non-medical fee-for-service claims administration; and Individual Life insurance, which provides universal life, variable universal life, indexed universal life and traditional life insurance. We focus our solutions on small-to-medium sized businesses and their employees with an emphasis on business owners and executives.

● Corporate, which manages the assets representing capital that has not been allocated to any other segment. Financial results of the Corporate segment primarily reflect our financing activities (including financing costs), income on capital not allocated to other segments, inter-segment eliminations, income tax risks and certain income, expenses and other adjustments not allocated to the segments based on the nature of such items. Results of PSI, our retail broker-dealer and RIA; RobustWealth, our financial technology company; and our exited group medical and long-term care insurance businesses are reported in this segment.

Strategic Review

On June 28, 2021, we announced changes to our portfolio and capital management strategy to drive profitable growth, reduce capital intensity, sharpen our strategic focus and generate long-term value for shareholders. These changes were approved by our Board following a comprehensive review of our business mix and capital management options (the “Strategic Review”) that was undertaken as a part of our entry into a cooperation agreement with one of our largest investors, Elliott Investment Management, LP.

The Strategic Review, initiated in February 2021, was led by the Finance Committee of the Board, which is comprised entirely of independent directors. Key results of the Strategic Review include (1) discontinuing sales of U.S. retail fixed annuities and consumer life insurance products; (2) investing and expanding in growth areas for fee-based businesses: retirement in the U.S. and emerging markets, global asset management and U.S. specialty benefits and protection in the small-to-medium-sized business market and (3) strengthening our capital management strategy, which includes additional share repurchases. For share repurchase information, see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 9, Stockholders’ Equity.”

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As of September 30, 2021, we discontinued sales of U.S. retail fixed annuities and consumer life insurance products, as outlined in the Strategic Review. We continue to evaluate strategic alternatives for our universal life insurance products with lifetime secondary guarantee provisions along with our U.S. retail fixed annuities business. Therefore, the future impact of the Strategic Review on our consolidated financial statements has not been fully assessed.

Transactions Affecting Comparability of Results of Operations

Actuarial Assumption Updates

We periodically review and update actuarial assumptions that are inputs to the models for DAC and other actuarial balances and make model refinements as necessary. During the third quarter of 2021, assumption updates and model refinements were made resulting in an unlocking of DAC and other actuarial balances that decreased consolidated net income attributable to Principal Financial Group, Inc. by $14.2 million for the three months ended September 30, 2021. During the third quarter of 2020, assumption updates and model refinements were made resulting in an unlocking of DAC and other actuarial balances that decreased consolidated net income attributable to Principal Financial Group, Inc. by $118.2 million for the three months ended September 30, 2020.

The following table presents the increase (decrease) to pre-tax operating earnings for each segment.

	For the three months ended
	September 30,
	2021		2020
	(in millions)
Retirement and Income Solutions	$	(67.3)	$	70.1
Principal International		—		2.7
U.S. Insurance Solutions		34.6		(215.1)

The Individual Life insurance business actuarial assumption updates and model refinements affected several line items within our income statement. The following table presents the increase (decrease) to the Individual Life insurance income statement line items.

	For the three months ended
	September 30,
	2021		2020
	(in millions)
Pre-tax operating earnings	$	32.1	$	(215.1)
Fees and other revenues		(10.0)		22.4
Benefits, claims and settlement expenses		(13.0)		154.1
Dividends to policyholders		—		1.1
Operating expenses		(29.1)		82.3

Other Factors Affecting Comparability of Results of Operations

Fluctuations in Foreign Currency to U.S. Dollar Exchange Rates

Fluctuations in foreign currency to U.S. dollar exchange rates for countries in which we have operations can affect reported financial results. In years when foreign currencies weaken against the U.S. dollar, translating foreign currencies into U.S. dollars results in fewer U.S. dollars to be reported. When foreign currencies strengthen, translating foreign currencies into U.S. dollars results in more U.S. dollars to be reported.

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Foreign currency exchange rate fluctuations create variances in our financial statement line items. The most significant impact occurs within our Principal International segment where pre-tax operating earnings were positively impacted $3.7 million and $13.4 million for the three and nine months ended September 30, 2021, respectively, as a result of fluctuations in foreign currency to U.S. dollar exchange rates. This impact was calculated by comparing (a) the difference between current year results and prior year results to (b) the difference between current year results and prior year results translated using current year exchange rates for both periods. We use this approach to calculate the impact of exchange rates on all revenue and expense line items. For a discussion of our approaches to managing foreign currency exchange rate risk, see Item 3. “Quantitative and Qualitative Disclosures About Market Risk — Foreign Currency Risk.”

Variable Investment Income

Variable investment income includes certain types of investment returns such as prepayment fees and income (loss) from certain elements of our other alternative asset classes, including results of value-add real estate sales activity. Due to its unpredictable nature, variable investment income may or may not be material to our financial results for a given reporting period and may create variances when comparing different reporting periods. For additional information, see “Investment Results.”

Recent Accounting Changes

For recent accounting changes, see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 1, Nature of Operations and Significant Accounting Policies” under the caption, “Recent Accounting Pronouncements.”

Results of Operations

The following table presents summary consolidated financial information for the periods indicated:

	For the three months ended September 30,						For the nine months ended September 30,
					Increase						Increase
	2021		2020		(decrease)		2021		2020		(decrease)
	(in millions)
Revenues:
Premiums and other considerations	$	1,230.5	$	1,184.3	$	46.2	$	3,335.3	$	4,628.4	$	(1,293.1)
Fees and other revenues		1,251.8		1,143.0		108.8		3,711.0		3,332.6		378.4
Net investment income		1,093.4		917.9		175.5		3,167.0		2,846.1		320.9
Net realized capital gains (losses)		(152.0)		65.5		(217.5)		(41.7)		169.5		(211.2)
Total revenues		3,423.7		3,310.7		113.0		10,171.6		10,976.6		(805.0)
Expenses:
Benefits, claims and settlement expenses		1,770.9		1,839.8		(68.9)		4,958.4		6,299.8		(1,341.4)
Dividends to policyholders		28.2		29.9		(1.7)		75.3		90.2		(14.9)
Operating expenses		1,196.5		1,165.9		30.6		3,663.3		3,484.7		178.6
Total expenses		2,995.6		3,035.6		(40.0)		8,697.0		9,874.7		(1,177.7)
Income before income taxes		428.1		275.1		153.0		1,474.6		1,101.9		372.7
Income taxes		63.8		39.2		24.6		222.4		164.9		57.5
Net income		364.3		235.9		128.4		1,252.2		937.0		315.2
Net income (loss) attributable to noncontrolling interest		4.4		(0.1)		4.5		13.4		13.8		(0.4)
Net income attributable to Principal Financial Group, Inc.	$	359.9	$	236.0	$	123.9	$	1,238.8	$	923.2	$	315.6

Three Months Ended September 30, 2021 Compared to Three Months Ended September 30, 2020

Net Income Attributable to Principal Financial Group, Inc.

Net income attributable to Principal Financial Group, Inc. increased primarily due to a less unfavorable impact of actuarial assumption updates and model refinements in 2021 compared to 2020.

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Total Revenues

Premiums increased for the U.S. Insurance Solutions segment $37.7 million due to growth in our Specialty Benefits insurance business and $21.5 million from dental premium credits associated with COVID-19 that lowered premiums in 2020. Premiums increased $20.0 million for the Principal International segment primarily due to higher single premium annuity sales in Chile. Partially offsetting these increases was a $35.7 million decrease in premiums for the Retirement and Income Solutions segment primarily due to lower sales of single premium group and individual annuities with life contingencies. The single premium group annuity product, which is typically used to fund defined benefit plan terminations, can generate large premiums from very few customers and therefore premiums tend to vary from period to period.

Fees and other revenues increased for the Principal Global Investors segment primarily due to $59.7 million higher management fee revenue as a result of increased average AUM and an $11.1 million increase in performance fee revenue primarily in our real estate business. Fees and other revenues increased $41.7 million for the Retirement and Income Solutions segment primarily related to higher fees stemming from an increase in mean account values, which resulted from continued growth in the equity markets.

For net investment income and net realized capital gains (losses) variance information, see “Investments — Investment Results” under the captions “Net Investment Income” and “Net Realized Capital Gains (Losses),” respectively.

Total Expenses

Benefits, claims and settlement expenses decreased for the U.S. Insurance Solutions segment primarily due to a $169.6 million impact associated with actuarial assumption updates and model refinements, which were favorable in 2021 compared to unfavorable in 2020. This decrease was partially offset by $31.4 million due to growth in the business and $14.9 million in higher non-COVID-19 claims. Benefits, claims and settlement expenses decreased $43.3 million for the Retirement and Income Solutions segment primarily due to a lower increase in reserves, stemming from lower sales of single premium group and individual annuities with life contingencies. Benefits, claims and settlement expenses increased for the Principal International segment primarily due to $49.5 million higher inflation-based interest crediting rates to customers and a $19.8 million increase in reserves from higher single premium annuity sales in Chile.

Operating expenses increased for the Retirement and Income Solutions segment primarily due to a $39.8 million increase in DAC amortization due to less favorable financial markets in the third quarter of 2021 compared to the third quarter of 2020 and a $24.3 million increase in variable compensation expense. Operating expenses increased for the Principal Global Investors segment primarily due to a $14.8 million increase in variable compensation expense, a $7.0 million increase in variable expenses related to increased AUM and a $6.1 million increase in non-variable staff costs. Operating expenses increased $12.3 million for the Corporate segment primarily related to interest income on tax settlements recorded in 2020. Operating expenses decreased $91.6 million for the U.S. Insurance Solutions segment primarily due to the impact associated with actuarial assumption updates and model refinements in the Individual Life insurance business, which were favorable in 2021 compared to unfavorable in 2020.

Income Taxes

The effective income tax rates were 15% and 14% for the three months ended September 30, 2021 and 2020, respectively. See Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 6, Income Taxes” for a reconciliation between the U.S. corporate income tax rate and the effective income tax rate.

Nine Months Ended September 30, 2021 Compared to Nine Months Ended September 30, 2020

Net Income Attributable to Principal Financial Group, Inc.

Net income attributable to Principal Financial Group, Inc. increased primarily due to a $208.9 million after-tax increase in variable investment income and a $104.0 million less unfavorable impact of actuarial assumption updates and model refinements in 2021 compared to 2020.

Total Revenues

Premiums decreased $1,388.7 million for the Retirement and Income Solutions segment primarily due to lower sales of single premium group and individual annuities with life contingencies.

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Fees and other revenues increased for the Principal Global Investors segment primarily due to $165.2 million higher management fee revenue as a result of increased average AUM and a $19.5 million increase in performance fee revenue primarily in our real estate business. Fees and other revenues increased $127.4 million for the Retirement and Income Solutions segment primarily due to higher fees stemming from an increase in mean account values, which resulted from continued growth in the equity markets. Fees and other revenues increased for the Principal International segment primarily due to $19.9 million foreign currency tailwinds in Latin America, $13.5 million in Asia primarily due to continued growth in the business and $8.1 million in Chile primarily due to an increase in deposits for which we collect fees.

For net investment income and net realized capital gains (losses) variance information, see “Investments — Investment Results” under the captions “Net Investment Income” and “Net Realized Capital Gains (Losses),” respectively.

Total Expenses

Benefits, claims and settlement expenses decreased $1,484.8 million for the Retirement and Income Solutions segment primarily due to a lower increase in reserves, stemming from lower sales of single premium group and individual annuities with life contingencies.

Operating expenses increased for the Retirement and Income Solutions segment primarily due to a $34.5 million increase due to variable compensation expense, a $29.9 million impact from growth in the business and a $20.3 million increase in expenses associated with the integration of the Acquired Business. Operating expenses increased for the Corporate segment primarily due to a $41.0 million increase in amounts credited to employee accounts in a nonqualified defined contribution pension plan, a $16.7 million increase in compensation costs largely due to an increase in incentive compensation and $14.1 million related to interest income on tax settlements recorded in 2020. Operating expenses increased for the Principal Global Investors segment primarily due to a $20.1 million increase in variable compensation expense, a $17.2 million increase in variable expenses related to increased AUM and a $9.2 million increase in non-variable staff costs. Partially offsetting these increases was a $112.4 million decrease in the U.S. Insurance Solutions segment primarily due to the impact associated with actuarial assumption updates and model refinements, which were favorable in 2021 compared to unfavorable in 2020.

Income Taxes

The effective income tax rate was 15% for both the nine months ended September 30, 2021 and 2020. See Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 6, Income Taxes” for a reconciliation between the U.S. corporate income tax rate and the effective income tax rate.

Results of Operations by Segment

For results of operations by segment see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 11, Segment Information.”

Retirement and Income Solutions Segment

Retirement and Income Solutions Segment Summary Financial Data

Net revenue is a key metric used to understand Retirement and Income Solutions earnings growth. Net revenue is defined as operating revenues less benefits, claims and settlement expenses less dividends to policyholders. Net revenue from Retirement and Income Solutions – Fee is primarily fee based and is also impacted by changes in the equity markets and interest rates. Net revenue from Retirement and Income Solutions – Spread is primarily driven by the difference between investment income earned on the underlying general account assets and the interest rate credited to the contracts.

The following table presents the Retirement and Income Solutions net revenue for the periods indicated:

	For the three months ended						For the nine months ended
	September 30,						September 30,
					Increase						Increase
	2021		2020		(decrease)		2021		2020		(decrease)
	(in millions)
Retirement and Income Solutions – Fee	$	448.2	$	530.2	$	(82.0)	$	1,486.8	$	1,481.2	$	5.6
Retirement and Income Solutions – Spread		240.5		166.4		74.1		678.5		466.8		211.7
Total Retirement and Income Solutions	$	688.7	$	696.6	$	(7.9)	$	2,165.3	$	1,948.0	$	217.3

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The following table presents certain summary financial data relating to the Retirement and Income Solutions segment for the periods indicated:

	For the three months ended						For the nine months ended
	September 30,						September 30,
					Increase						Increase
	2021		2020		(decrease)		2021		2020		(decrease)
	(in millions)
Operating revenues:
Premiums and other considerations	$	482.1	$	517.8	$	(35.7)	$	1,112.4	$	2,501.1	$	(1,388.7)
Fees and other revenues		472.8		430.9		41.9		1,412.1		1,284.1		128.0
Net investment income		698.0		631.2		66.8		2,023.3		1,880.4		142.9
Total operating revenues		1,652.9		1,579.9		73.0		4,547.8		5,665.6		(1,117.8)
Expenses:
Benefits, claims and settlement expenses, including dividends to policyholders		964.2		883.3		80.9		2,382.5		3,717.6		(1,335.1)
Operating expenses		445.5		415.5		30.0		1,353.9		1,247.9		106.0
Total expenses		1,409.7		1,298.8		110.9		3,736.4		4,965.5		(1,229.1)
Pre-tax operating earnings	$	243.2	$	281.1	$	(37.9)	$	811.4	$	700.1	$	111.3

Three Months Ended September 30, 2021 Compared to Three Months Ended September 30, 2020

Pre-Tax Operating Earnings

Pre-tax operating earnings decreased in our Fee business primarily due to a $104.1 million impact associated with actuarial assumption updates and model refinements, which were unfavorable in 2021 versus favorable in 2020. Pre-tax operating earnings increased in our Spread business primarily due to a $74.7 million increase in variable investment income partially offset by a $33.3 million favorable impact associated with actuarial assumption updates and model refinements in 2020.

Net Revenue

Net revenue decreased in our Fee business primarily due to a $131.2 million impact associated with actuarial assumption updates and model refinements, which were unfavorable in 2021 versus favorable in 2020 partially offset by a $41.4 million increase related to higher fees stemming from an increase in mean account values, which resulted from continued growth in the equity markets. Net revenue increased in our Spread business primarily due to a $74.7 million increase in variable investment income.

Operating Expenses

Operating expenses increased in our Fee business primarily due to a $15.3 million impact from growth in the business and a $13.5 million increase due to variable compensation expense. These increases were partially offset by a $27.1 million impact associated with actuarial assumption updates and model refinements, which were favorable in 2021 versus unfavorable in 2020. Operating expenses increased in our Spread business primarily due to a $24.4 million favorable impact associated with actuarial assumption updates and model refinements in 2020.

Nine Months Ended September 30, 2021 Compared to Nine Months Ended September 30, 2020

Pre-Tax Operating Earnings

Pre-tax operating earnings decreased in our Fee business primarily due to a $104.1 million impact associated with actuarial assumption updates and model refinements, which were unfavorable in 2021 versus favorable in 2020, and an $84.7 million increase in operating expenses, which is described below. The decrease in our Fee business pre-tax operating earnings was partially offset by a $128.0 million increase related to higher fees stemming from an increase in mean account values, which resulted from continued growth in the equity markets. Pre-tax operating earnings increased in our Spread business primarily due to a $165.8 million increase in variable investment income.

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Net Revenue

Net revenue increased in our Fee business primarily due to a $128.0 million increase related to higher fees stemming from an increase in mean account values, which resulted from continued growth in the equity markets, and a $9.5 million increase in variable investment income. These increases were largely offset by a $131.2 million impact associated with actuarial assumption updates and model refinements, which were unfavorable in 2021 versus favorable in 2020. Net revenue increased in our Spread business primarily due to a $165.8 million increase in variable investment income and a $49.4 million increase primarily due to COVID-19 related reserve gains.

Operating Expenses

Operating expenses increased in our Fee business due to a $34.5 million increase due to variable compensation expense, a $29.9 million impact from growth in the business and a $20.3 million increase in expenses associated with the integration of the Acquired Business. These increases were partially offset by a $27.1 million impact associated with actuarial assumption updates and model refinements, which were favorable in 2021 versus unfavorable in 2020. Operating expenses increased in our Spread business primarily due to a $24.4 million favorable impact associated with actuarial assumption updates and model refinements in 2020.

Principal Global Investors Segment

Principal Global Investors Segment Summary Financial Data

AUM is the base by which we generate management fee revenues. Market performance and net cash flow are the two main drivers of AUM growth. Market performance reflects equity, fixed income, real estate and other alternative investment performance. Net cash flow reflects client deposits and withdrawals. The fee levels on these client deposits and withdrawals are increasingly becoming the more important factor to revenue growth and will vary widely based on business and/or product mix.

The following table presents the AUM rollforward for assets managed by Principal Global Investors for the periods indicated:

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in billions)
AUM, beginning of period	$	532.3	$	450.1	$	502.1	$	458.6
Net cash flow		2.2		(0.4)		3.3		2.4
Investment performance		2.1		19.3		31.9		9.6
Operations disposed (1)		—		(0.8)		—		(0.9)
Other		(1.2)		0.2		(1.9)		(1.3)
AUM, end of period	$	535.4	$	468.4	$	535.4	$	468.4

(1) During the third quarter of 2020, we made the decision to close our large cap strategy managed by Columbus Circle Investors and we returned the balance of the credit fund managed by the Finisterre emerging market debt team, which announced the fund’s closure in the second quarter of 2020.

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The following table presents certain summary financial data relating to the Principal Global Investors segment for the periods indicated:

	For the three months ended September 30,						For the nine months ended September 30,
					Increase						Increase
	2021		2020		(decrease)		2021		2020		(decrease)
	(in millions)
Operating revenues:
Fees and other revenues	$	464.5	$	381.8	$	82.7	$	1,330.7	$	1,122.3	$	208.4
Net investment income		0.7		1.0		(0.3)		3.4		4.2		(0.8)
Total operating revenues		465.2		382.8		82.4		1,334.1		1,126.5		207.6
Expenses:
Total expenses		273.3		240.4		32.9		813.7		760.9		52.8
Pre-tax operating earnings attributable to noncontrolling interest		1.8		1.5		0.3		4.8		4.6		0.2
Pre-tax operating earnings	$	190.1	$	140.9	$	49.2	$	515.6	$	361.0	$	154.6

Three Months Ended September 30, 2021 Compared to Three Months Ended September 30, 2020

Pre-Tax Operating Earnings

Pre-tax operating earnings increased primarily due to $59.7 million higher management fee revenue as a result of increased average AUM and an $11.1 million increase in performance fee revenue primarily in our real estate business. This was partially offset by a $14.8 million increase in variable compensation expense.

Nine Months Ended September 30, 2021 Compared to Nine Months Ended September 30, 2020

Pre-Tax Operating Earnings

Pre-tax operating earnings increased primarily due to $165.2 million higher management fee revenue as a result of increased average AUM and a $19.5 million increase in performance fee revenue primarily in our real estate business. This was partially offset by a $20.1 million increase in variable compensation expense.

Principal International Segment

Principal International Segment Summary Financial Data

AUM is generally a key indicator of earnings growth for the segment, as AUM is the base by which we can generate local currency profits. The Cuprum business in Chile differs in that the majority of fees are collected with each deposit by the mandatory retirement customers, based on a capped salary level, as opposed to asset levels. Net customer cash flow and market performance are the two main drivers of local currency AUM growth. Net customer cash flow reflects our ability to attract and retain client deposits. Market performance reflects the investment returns on our underlying AUM. Our financial results are also impacted by fluctuations of the foreign currency to U.S. dollar exchange rates for the locations in which we have business. AUM of our foreign subsidiaries is translated into U.S. dollar equivalents at the end of the reporting period using the spot foreign exchange rates. Revenue and expenses for our foreign subsidiaries are translated into U.S. dollar equivalents at the average foreign exchange rates for the reporting period.

The following table presents the Principal International segment AUM rollforward for the periods indicated:

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in billions)
AUM, beginning of period	$	167.1	$	143.5	$	165.2	$	169.7
Net cash flow		0.4		1.8		1.8		3.0
Investment performance		(0.6)		1.7		1.8		2.5
Effect of exchange rates		(10.8)		1.4		(10.7)		(26.1)
Other		(0.3)		(1.4)		(2.3)		(2.1)
AUM, end of period	$	155.8	$	147.0	$	155.8	$	147.0

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Net revenue is a key metric used to understand the earnings growth for the Principal International segment. The following table presents the net revenue of the Principal International segment for the periods indicated:

	For the three months ended September 30,						For the nine months ended September 30,
					Increase						Increase
	2021		2020		(decrease)		2021		2020		(decrease)
	(in millions)
Net revenue	$	196.3	$	165.4	$	30.9	$	548.6	$	491.8	$	56.8

The following table presents certain summary financial data relating to the Principal International segment for the periods indicated:

	For the three months ended September 30,						For the nine months ended September 30,
					Increase						Increase
	2021		2020		(decrease)		2021		2020		(decrease)
	(in millions)
Operating revenues:
Premiums and other considerations	$	36.6	$	16.6	$	20.0	$	105.8	$	130.2	$	(24.4)
Fees and other revenues		126.1		112.5		13.6		376.6		326.4		50.2
Net investment income		165.4		96.2		69.2		459.9		345.6		114.3
Total operating revenues		328.1		225.3		102.8		942.3		802.2		140.1
Expenses:
Benefits, claims and settlement expenses		131.8		59.9		71.9		393.7		310.4		83.3
Operating expenses		114.7		106.2		8.5		342.5		306.1		36.4
Total expenses		246.5		166.1		80.4		736.2		616.5		119.7
Pre-tax operating earnings attributable to noncontrolling interest		0.6		0.5		0.1		2.3		1.7		0.6
Pre-tax operating earnings	$	81.0	$	58.7	$	22.3	$	203.8	$	184.0	$	19.8

Three Months Ended September 30, 2021 Compared to Three Months Ended September 30, 2020

Pre-Tax Operating Earnings

Pre-tax operating earnings increased in Latin America primarily due to $23.9 million favorable variable investment income in Chile.

Net Revenue

Net revenue increased in Latin America primarily due to $23.9 million favorable variable investment income in Chile and $5.3 million foreign currency tailwinds.

Nine Months Ended September 30, 2021 Compared to Nine Months Ended September 30, 2020

Pre-Tax Operating Earnings

Pre-tax operating earnings increased in Latin America primarily due to $9.8 million foreign currency tailwinds. Pre-tax operating earnings increased $8.2 million in Asia primarily due to continued growth in the business.

Net Revenue

Net revenue increased in Latin America primarily due to $25.1 million foreign currency tailwinds and $8.7 million higher inflation-based investment returns on average invested assets and cash. Net revenue increased $15.3 million in Asia primarily due to continued growth in the business.

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U.S. Insurance Solutions Segment

U.S. Insurance Solutions Segment Summary Financial Data

Premium and fees are a key metric for growth in the U.S. Insurance Solutions segment. We receive premiums on our specialty benefits insurance products as well as our traditional life insurance products. Fees are generated from our specialty benefits fee-for-service products as well as our universal life, variable universal life and indexed universal life insurance products. We use several reinsurance programs to help manage the mortality and morbidity risk. Premium and fees are reported net of reinsurance premiums.

The following table presents the U.S. Insurance Solutions segment premium and fees for the periods indicated:

	For the three months ended September 30,						For the nine months ended September 30,
					Increase						Increase
	2021		2020		(decrease)		2021		2020		(decrease)
	(in millions)
Premium and fees:
Specialty Benefits insurance	$	638.9	$	579.7	$	59.2	$	1,878.0	$	1,767.4	$	110.6
Individual Life insurance		302.1		323.6		(21.5)		945.7		925.5		20.2

The following table presents certain summary financial data relating to the U.S. Insurance Solutions segment for the periods indicated:

	For the three months ended September 30,						For the nine months ended September 30,
					Increase						Increase
	2021		2020		(decrease)		2021		2020		(decrease)
	(in millions)
Operating revenues:
Premiums and other considerations	$	711.8	$	649.9	$	61.9	$	2,117.1	$	1,997.1	$	120.0
Fees and other revenues (1)		229.2		253.4		(24.2)		706.5		695.7		10.8
Net investment income		249.1		218.1		31.0		723.3		640.0		83.3
Total operating revenues		1,190.1		1,121.4		68.7		3,546.9		3,332.8		214.1
Expenses:
Benefits, claims and settlement expenses (1)		744.0		864.8		(120.8)		2,247.7		2,168.9		78.8
Dividends to policyholders (1)		28.2		29.7		(1.5)		75.1		90.0		(14.9)
Operating expenses (1)		266.3		361.0		(94.7)		850.7		923.5		(72.8)
Total expenses		1,038.5		1,255.5		(217.0)		3,173.5		3,182.4		(8.9)
Pre-tax operating earnings (losses) (1)	$	151.6	$	(134.1)	$	285.7	$	373.4	$	150.4	$	223.0

(1) For further details related to the impact associated with actuarial assumption updates and model refinements for the three months ended September 30, 2021 and 2020, see “Transactions Affecting Comparability of Results of Operations — Actuarial Assumption Updates.”

Three Months Ended September 30, 2021 Compared to Three Months Ended September 30, 2020

Pre-Tax Operating Earnings (Losses)

Pre-tax operating earnings in our Specialty Benefits insurance business increased $21.0 million from less unfavorable COVID-19 impacts in 2021 compared to 2020, $5.8 million in higher variable investment income and $5.6 million due to lower non-COVID-19 claims. Pre-tax operating earnings in our Individual Life insurance business increased $247.2 million due to the impact associated with actuarial assumption updates and model refinements, which were favorable in 2021 compared to unfavorable in 2020.

Operating Revenues

Premium and fees increased in our Specialty Benefits Insurance business due to $37.7 million from growth in the business and $21.5 million in dental premium credits associated with COVID-19 that lowered premium and fees in 2020. Premium and fees decreased in our Individual Life insurance business primarily due to a $32.4 million impact associated with actuarial assumption updates and model refinements, which were unfavorable in 2021 compared to favorable in 2020, partially offset by a $10.9 million increase from growth in the business.

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Net investment income increased primarily from higher variable investment income.

Total Expenses

Benefits, claims and settlement expenses in our Specialty Benefits insurance business increased $23.6 million due to growth in the business partially offset by $5.6 million in lower claims. Benefits, claims and settlement expenses decreased in our Individual Life insurance business primarily due to a $167.1 million impact associated with actuarial assumption updates and model refinements, which were favorable in 2021 compared to unfavorable in 2020, partially offset by $20.5 million in higher non-COVID-19 claims and $11.0 million in higher COVID-19 claims.

Operating expenses decreased primarily due to the impact associated with actuarial assumption updates and model refinements in our Individual Life insurance business, which were favorable in 2021 compared to unfavorable in 2020.

Nine Months Ended September 30, 2021 Compared to Nine Months Ended September 30, 2020

Pre-Tax Operating Earnings

Pre-tax operating earnings decreased in our Specialty Benefits insurance business due to a $101.6 million impact related to COVID-19, which was unfavorable in 2021 compared to favorable in 2020, primarily due to temporary dental and vision office closures in 2020. This decrease was partially offset by $25.6 million in lower non-COVID-19 claims and $10.3 million in growth of the business. Pre-tax operating earnings in our Individual Life insurance business increased $279.4 million primarily due to the impact associated with actuarial assumption updates and model refinements, which were favorable in 2021 compared to unfavorable in 2020.

Operating Revenues

Premiums and fees increased primarily due to growth in the business.

Net investment income increased $54.0 million from higher variable investment income and $15.3 million from growth in average invested assets.

Total Expenses

Benefits claims and settlement expenses in our Specialty Benefits insurance business increased $130.3 million from unfavorable COVID-19 impacts in 2021 compared to favorable in 2020 primarily associated with lower claims due to temporary dental and vision office closures in 2020. Benefits, claims and settlement expenses decreased in our Individual Life insurance business $170.1 million due to the impact associated with actuarial assumption updates and model refinements, which were favorable in 2021 compared to unfavorable in 2020. This decrease was partially offset by $35.8 million in more unfavorable COVID-19 related impacts in 2021 compared to 2020, $33.8 million due to growth in the business and $12.8 million in higher non-COVID-19 claims.

Dividends to policyholders in our Individual Life insurance business decreased $8.4 million due to the normal decline in the Closed Block business and $6.4 million due to a decrease in the policyholder dividend obligation resulting from higher claims.

Operating expenses in our Specialty Benefits business increased $25.9 million primarily due to growth in business. Operating expenses in our Individual Life insurance business decreased $98.7 million primarily due to the impact associated with actuarial assumption updates and model refinements, which were favorable in 2021 compared to unfavorable in 2020.

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Corporate Segment

Corporate Segment Summary Financial Data

The following table presents certain summary financial data relating to the Corporate segment for the periods indicated:

	For the three months ended September 30,						For the nine months ended September 30,
					Increase						Increase
	2021		2020		(decrease)		2021		2020		(decrease)
	(in millions)
Operating revenues:
Total operating revenues	$	(14.3)	$	(17.0)	$	2.7	$	(21.8)	$	(24.0)	$	2.2
Expenses:
Total expenses		82.3		53.1		29.2		252.5		202.9		49.6
Pre-tax operating earnings (losses) attributable to noncontrolling interest		0.5		(0.4)		0.9		(0.7)		17.9		(18.6)
Pre-tax operating losses	$	(97.1)	$	(69.7)	$	(27.4)	$	(273.6)	$	(244.8)	$	(28.8)

Three Months Ended September 30, 2021 Compared to Three Months Ended September 30, 2020

Pre-Tax Operating Losses

Pre-tax operating losses increased primarily due to expense increases, including $12.3 million related to interest income on tax settlements recorded in 2020 and a $6.1 million increase in compensation costs largely due to an increase in incentive compensation.

Nine Months Ended September 30, 2021 Compared to Nine Months Ended September 30, 2020

Pre-Tax Operating Losses

Pre-tax operating losses increased primarily due to a $16.7 million increase in compensation costs largely due to an increase in incentive compensation and $14.1 million related to interest income on tax settlements recorded in 2020.

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Liquidity and Capital Resources

Liquidity and capital resources represent the overall strength of a company and its ability to generate strong cash flows, borrow funds at a competitive rate and raise new capital to meet operating and growth needs. We are in a strong capital and liquidity position as we face the uncertain, volatile and potentially material adverse economic disruptions to our business brought on by the COVID-19 pandemic. We are monitoring our liquidity closely and feel confident in our ability to meet all long-term obligations to customers, policyholders and debt holders. Our sources of strength include our laddered long-term debt maturities with the next maturity not until 2022, access to revolving credit facility and contingent funding arrangements, a strong risk-based capital position and our available cash and liquid assets. The combination of these financial levers will enable us to manage through this period of economic volatility. Our legal entity structure has an impact on our ability to meet cash flow needs as an organization. Following is a simplified organizational structure.

Liquidity

Our liquidity requirements have been and will continue to be met by funds from consolidated operations as well as the issuance of commercial paper, common stock, debt or other capital securities and borrowings from credit facilities. We believe the cash flows from these sources are sufficient to satisfy the current liquidity requirements of our operations, including reasonably foreseeable contingencies.

We maintain a level of cash and securities which, combined with expected cash inflows from investments and operations, we believe to be adequate to meet anticipated short-term and long-term payment obligations. We will continue our prudent capital management practice of regularly exploring options available to us to maximize capital flexibility, including accessing the capital markets and careful attention to and management of expenses.

We perform rigorous liquidity stress testing to ensure our asset portfolio includes sufficient high quality liquid assets that could be utilized to bolster our liquidity position under increasingly stressed market conditions. These assets could be utilized as collateral for secured borrowing transactions with various third parties or by selling the securities in the open market if needed.

We also manage liquidity risk by limiting the sales of liabilities with features such as puts or other options that can be exercised at inopportune times. For example, as of September 30, 2021, approximately $13.4 billion, or 99%, of our institutional guaranteed investment contracts and funding agreements cannot be redeemed by contractholders prior to maturity. Our individual annuity liabilities also contain surrender charges and other provisions limiting early surrenders.

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The following table summarizes the withdrawal characteristics of our domestic general account investment contracts as of September 30, 2021.

	Contractholder funds		Percentage
	(in millions)
Not subject to discretionary withdrawal	$	14,660.8	41.4	%
Subject to discretionary withdrawal with adjustments:
Specified surrender charges		9,741.9	27.5
Market value adjustments		5,932.9	16.7
Subject to discretionary withdrawal without adjustments		5,087.9	14.4
Total domestic investment contracts	$	35,423.5	100.0	%

Universal life insurance and certain traditional life insurance policies are also subject to discretionary withdrawals by policyholders. However, life insurance policies tend to be less susceptible to withdrawal than our investment contracts because policyholders may be subject to a new underwriting process in order to obtain a new life insurance policy. In addition, our life insurance liabilities include surrender charges to discourage early surrenders.

We had the following short-term credit facilities with various financial institutions as of September 30, 2021:

	Financing				Amount
Obligor/Applicant	structure	Maturity	Capacity		outstanding (3)
			(in millions)
PFG, PFS, and Principal Life as co-borrowers (1)	Credit facility	November 2023	$	600.0	$	—
PFG, PFS, Principal Financial Services V (UK) LTD and Principal Life as co-borrowers (1)	Credit facility	November 2023		200.0		—
Principal International Chile (2)	Unsecured lines of credit			213.9		74.3
Total			$	1,013.9	$	74.3

(1) The credit facility is supported by eighteen banks.

(2) The unsecured lines of credit can be used for repurchase agreements or other borrowings. Each line has a maturity of less than one year.

(3) The amount outstanding is reported in short-term debt on the consolidated statements of financial position.

The revolving credit facilities are committed and available for general corporate purposes. These credit facilities also provide 100% back-stop support for our commercial paper program, of which we had no outstanding balances as of September 30, 2021 and December 31, 2020. Most of the banks supporting the credit facilities have other relationships with us. Due to the financial strength and the strong relationships we have with these providers, we are comfortable we have very low risk the financial institutions would be unable or unwilling to fund these facilities.

The Holding Companies: PFG and PFS. The principal sources of funds available to our parent holding company, PFG, are dividends from subsidiaries as well as its ability to borrow funds at competitive rates and raise capital to meet operating and growth needs. These funds are used by PFG to meet its obligations, which include the payment of dividends on common stock, debt service and the repurchase of stock. The declaration and payment of common stock dividends is subject to the discretion of our Board and will depend on our overall financial condition, results of operations, capital levels, cash requirements, future prospects, receipt of dividends from Principal Life (as described below), risk management considerations and other factors deemed relevant by the Board. No significant restrictions limit the payment of dividends by PFG, except those generally applicable to corporations incorporated in Delaware.

Dividends from Principal Life, our primary subsidiary, are limited by Iowa law. Under Iowa law, Principal Life may pay dividends only from the earned surplus arising from its business and must receive the prior approval of the Commissioner of Insurance of the State of Iowa (the “Commissioner”) to pay stockholder dividends or make any other distribution if such distribution would exceed certain statutory limitations. Iowa law gives the Commissioner discretion to disapprove requests for distributions in excess of these limitations. Extraordinary dividends include those made, together with dividends and other distributions, within the preceding twelve months that exceed the greater of (i) 10% of statutory policyholder surplus as of the previous year-end or (ii) the statutory net gain from operations from the previous calendar year, not to exceed earned surplus. Based on statutory results for the year ended December 31, 2020, the ordinary stockholder dividend limitation for Principal Life is approximately $932.5 million in 2021. However, because the dividend test is based on dividends previously paid over rolling 12-month periods, if paid before a specified date during 2021, some or all of such dividends may be extraordinary and require regulatory approval.

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Total stockholder dividends paid by Principal Life to its parent for the nine months ended September 30, 2021, were $900.0 million, $600.0 million of which was extraordinary and approved by the Commissioner. As of September 30, 2021, we had $2,466.2 million of cash and liquid assets held in our holding companies and other subsidiaries, which is available for corporate purposes. This includes assets in excess of targeted statutory capital ratios and immediate working capital needs. Corporate balances held in foreign holding companies meet the indefinite reinvestment exception.

Operations. Our primary consolidated cash flow sources are premiums from insurance products, pension and annuity deposits, asset management fee revenues, administrative services fee revenues, income from investments and proceeds from the sales or maturity of investments. Cash outflows consist primarily of payment of benefits to policyholders and beneficiaries, income and other taxes, current operating expenses, payment of dividends to policyholders, payments in connection with investments acquired, payments made to acquire subsidiaries, payments relating to policy and contract surrenders, withdrawals, policy loans, interest payments and repayment of short-term debt and long-term debt. Our investment strategies are generally intended to provide adequate funds to pay benefits without forced sales of investments. For a discussion of our investment objectives and strategies, see “Investments.”

Cash Flows. Cash flow activity, as reported in our consolidated statements of cash flows, provides relevant information regarding our sources and uses of cash. The following discussion of our operating, investing and financing portions of the cash flows excludes cash flows attributable to the separate accounts.

Net cash provided by operating activities was $2,107.0 million and $3,110.4 million for the nine months ended September 30, 2021 and 2020, respectively. Our insurance business typically generates positive cash flows from operating activities, as premiums collected from our insurance products and income received from our investments exceed acquisition costs, benefits paid, redemptions and operating expenses. These positive cash flows are then invested to support the obligations of our insurance and investment products and required capital supporting these products. Our cash flows from operating activities are affected by the timing of premiums, fees and investment income received and benefits and expenses paid. The decrease in cash provided by operating activities was primarily due to fluctuations in receivables and payables associated with the timing of settlements in 2021 as compared to 2020. Additionally, increases in net income were offset in part by proceeds from real estate sold in 2020 with no corresponding activity in 2021.

Net cash used in investing activities was $2,867.3 million and $3,639.9 million for the nine months ended September 30, 2021 and 2020, respectively. The decrease in cash used in investing activities was primarily due to lower net purchases of available-for-sale securities in 2021 as compared to 2020. The decrease was offset in part by increased net purchases of mortgage loans and lower Chile direct financing lease maturities in in 2021 as compared to 2020.

Net cash provided by financing activities was $1,055.9 million and $1,570.3 million for the nine months ended September 30, 2021 and 2020, respectively. The decrease in cash provided by financing activities was due to proceeds from long-term debt issued in 2020 with no corresponding activity in 2021 and lower net investment contract deposits in 2021 as compared to 2020. These decreases were partially offset by increased banking operation deposits due to a new bank sweep product launched in the third quarter of 2021 associated with the Acquired Business.

Shelf Registration. Under our current shelf registration, we have the ability to issue, in unlimited amounts, unsecured senior debt securities or subordinated debt securities, junior subordinated debt, preferred stock, common stock, warrants, depositary shares, purchase contracts and purchase units of PFG. Our wholly owned subsidiary, PFS, may guarantee, fully and unconditionally or otherwise, our obligations with respect to any non-convertible securities, other than common stock, described in the shelf registration.

Guarantors and Issuers of Guaranteed Securities. PFG has issued certain notes pursuant to transactions registered under the Securities Act of 1933. Such notes include all currently outstanding senior notes and junior subordinated notes, which are subordinated to all our senior debt (collectively, the “registered notes”). For additional information on the senior notes and junior subordinated notes, see Item 8. “Financial Statements and Supplementary Data, Notes to Consolidated Financial Statements, Note 9, Debt” in our Annual Report on Form 10-K for the year ended December 31, 2020.

PFS, a wholly owned subsidiary of PFG, has guaranteed each of the registered notes on a full and unconditional basis. The full and unconditional guarantees require PFS to satisfy the obligations of the guaranteed security immediately, if and when PFG has failed to make a scheduled payment thereunder. If PFS does not make such payment, any holder of the guaranteed security may immediately bring suit directly against PFS for payment of amounts due and payable. No other subsidiary of PFG has guaranteed any of the registered notes.

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Summary financial information is presented below on a combined basis for PFG and PFS (the “obligor group”) and transactions between the obligor group have been eliminated. The summary financial information excludes subsidiaries that are not issuers or guarantors. Any investments by the obligor group in other subsidiaries have been excluded.

	September 30, 2021		December 31, 2020
	(in millions)
Summary Statements of Financial Position Information:
Total investments	$	1,350.7	$	1,254.9
Cash and cash equivalents		803.8		661.6
Goodwill		618.5		618.5
Other intangibles		482.5		503.6
Other assets		435.8		457.8
Due from non-obligor subsidiaries		78.3		169.5
Total assets		3,821.9		3,757.3
Long-term debt		4,225.2		4,223.3
Other liabilities		696.7		806.7
Due to non-obligor subsidiaries		934.9		843.4
Total liabilities		5,900.5		5,904.7

	For the nine months ended		For the year ended
	September 30, 2021		December 31, 2020
	(in millions)
Summary Statements of Operations Information:
Total revenues	$	178.3	$	396.2
Total expenses		505.7		731.7
Net loss		(249.1)		(243.6)

Short-Term Debt. The components of short-term debt were as follows:

	September 30, 2021		December 31, 2020
	(in millions)
Other recourse short-term debt	$	74.3	$	84.7
Total short-term debt	$	74.3	$	84.7

The short-term credit facilities are used for general corporate purposes and borrowings outstanding can fluctuate as part of working capital management.

Long-Term Debt. On June 12, 2020, we issued $500.0 million of senior notes at a discount. On August 3, 2020, we issued an additional $100.0 million of senior notes at a premium. The proceeds from these notes were used for general corporate purposes.

Contingent Funding Agreements for Senior Debt Issuance. In March 2018, we entered into two contingent funding agreements that give us the right at any time over a ten-year or thirty-year period to issue up to $400.0 million or $350.0 million, respectively, of senior notes.

Stockholders’ Equity. The following table summarizes our return of capital to common stockholders.

	For the nine months ended		For the year ended
	September 30, 2021		December 31, 2020
	(in millions)
Dividends to stockholders	$	485.6	$	614.5
Repurchase of common stock (1)		585.1		307.0
Total cash returned to common stockholders	$	1,070.7	$	921.5

(1) Includes common stock utilized to execute certain stock incentive awards and shares purchased as part of publicly announced programs.

For additional stockholders’ equity information, see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 9, Stockholders’ Equity.”

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Capitalization

The following table summarizes our capital structure:

	September 30, 2021			December 31, 2020
	($ in millions)
Debt:
Short-term debt	$	74.3		$	84.7
Long-term debt		4,279.7			4,279.2
Total debt		4,354.0			4,363.9
Total stockholders’ equity attributable to PFG		16,070.7			16,558.9
Total capitalization	$	20,424.7		$	20,922.8
Debt to equity		27	%		26	%
Debt to capitalization		21	%		21	%

Contractual Obligations and Contractual Commitments

As of September 30, 2021, no significant changes to contractual obligations and contractual commitments have occurred since December 31, 2020.

Off-Balance Sheet Arrangements

Variable Interest Entities. We have relationships with various types of special purpose entities and other entities where we have a variable interest as described in Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 2, Variable Interest Entities.” We have made commitments to fund certain limited partnerships, some of which are classified as unconsolidated variable interest entities.

Guarantees and Indemnifications. As of September 30, 2021, no significant changes to guarantees and indemnifications have occurred since December 31, 2020. For guarantee and indemnification information, see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 8, Contingencies, Guarantees and Indemnifications” under the caption, “Guarantees and Indemnifications.”

Financial Strength and Credit Ratings

Our ratings are influenced by the relative ratings of our peers/competitors as well as many other factors including our operating and financial performance, capital levels, asset quality, liquidity, asset/liability management, overall portfolio mix, financial leverage (i.e., debt), risk exposures, operating leverage and other factors.

In June 2021, Fitch affirmed the ‘AA-’ financial strength ratings of Principal Life and Principal National Life Insurance Company (“PNLIC”). Fitch also affirmed PFG’s senior unsecured debt at ‘A-’. The outlook on all ratings was revised from ‘negative’ to ‘stable’. The rating affirmation and revision of the outlook follows our announcement of the results of the Strategic Review.

In June 2021, Moody’s commented that our ratings and positive outlook remain unchanged after completion of the Strategic Review.

In June 2021, S&P affirmed the financial strength rating of Principal Life and PNLIC at ‘A+’. S&P also affirmed the issuer credit ratings of PFG and PFS at ‘A-‘. The outlook on all ratings changed from ‘negative’ to ‘stable’. The rating affirmation and revision of the outlook follows our announcement of the result of the Strategic Review.

In May 2021, Fitch and Moody’s revised their U.S. life insurance industry outlooks to ‘stable’ from ‘negative’. S&P continues to have a ‘stable’ industry outlook, while A.M. Best’s outlook remains ‘negative’.

In February 2021, A.M. Best affirmed the financial strength ratings of Principal Life and PNLIC at ‘A+’. Concurrently, A.M. Best affirmed the long-term issuer credit ratings at ‘aa’. The outlook remains ‘stable’ for all credit ratings. The affirmation reflects the strength of our consolidated statement of financial position as well as our strong operating performance, favorable business profile and very strong enterprise risk management.

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The following table summarizes our significant financial strength and debt ratings from the major independent rating organizations. A rating is not a recommendation to buy, sell or hold securities. Such a rating may be subject to revision or withdrawal at any time by the assigning rating agency. Each rating should be evaluated independently of any other rating.

	A.M. Best	Fitch	Moody’s	S&P
Principal Financial Group
Senior Unsecured Debt	a	A-	Baa1	A-
Junior Subordinated Debt	a-		Baa2	BBB
Long-Term Issuer Default Rating		A
Principal Life Insurance Company
Insurer Financial Strength	A+	AA-	A1	A+
Issuer Credit Rating	aa
Commercial Paper	AMB‑1+		P-1	A-1+
Principal National Life Insurance Company
Insurer Financial Strength	A+	AA-	A1	A+

Fair Value Measurement

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three levels. The fair value hierarchy gives the highest priority (Level 1) to unadjusted quoted prices in active markets for identical assets or liabilities and gives the lowest priority (Level 3) to unobservable inputs. The level in the fair value hierarchy within which the fair value measurement in its entirety falls is determined based on the lowest level input that is significant to the fair value measurement in its entirety considering factors specific to the asset or liability. See Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 10, Fair Value Measurements” for further details, including a reconciliation of changes in Level 3 fair value measurements.

As of September 30, 2021, 45% of our net assets (liabilities) were Level 1, 54% were Level 2 and 1% were Level 3. Excluding separate account assets as of September 30, 2021, 4% of our net assets (liabilities) were Level 1, 95% were Level 2 and 1% were Level 3.

As of December 31, 2020, 41% of our net assets (liabilities) were Level 1, 56% were Level 2 and 3% were Level 3. Excluding separate account assets as of December 31, 2020, 3% of our net assets (liabilities) were Level 1, 97% were Level 2 and 0% were Level 3.

Changes in Level 3 Fair Value Measurements

Net assets (liabilities) measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as of September 30, 2021, were $1,807.3 million as compared to $8,812.6 million as of December 31, 2020. The decrease was primarily related to net sales in our separate account assets due to the restructure of certain separate account real estate assets into a partnership entity that is carried at NAV.

Investments

We had total consolidated assets as of September 30, 2021, of $298,908.4 million, of which $106,894.4 million were invested assets. The rest of our total consolidated assets are comprised primarily of separate account assets for which we do not bear investment risk; therefore, the discussion and financial information below does not include such assets.

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Overall Composition of Invested Assets

Invested assets as of September 30, 2021, were predominantly high quality and broadly diversified across asset class, individual credit, industry and geographic location. Asset allocation is determined based on cash flow and the risk/return requirements of our products. As shown in the following table, the major categories of invested assets are fixed maturities and commercial mortgage loans.

	September 30, 2021				December 31, 2020
	Carrying amount		% of total		Carrying amount		% of total
	($ in millions)
Fixed maturities:
Public	$	49,054.9	46	%	$	51,966.5	49	%
Private		27,915.7	26			27,275.9	26
Equity securities		2,428.2	2			2,013.4	2
Mortgage loans:
Commercial		16,298.2	15			15,398.4	14
Residential		3,127.8	3			1,944.6	2
Real estate held for sale		57.2	—			2.0	—
Real estate held for investment		1,908.4	2			1,795.3	2
Policy loans		762.1	1			784.0	1
Other investments		5,341.9	5			5,126.8	4
Total invested assets		106,894.4	100	%		106,306.9	100	%
Cash and cash equivalents		3,145.4				2,849.8
Total invested assets and cash	$	110,039.8			$	109,156.7

Investment Results

Net Investment Income

The following table presents the yield and investment income, excluding net realized capital gains and losses, for our invested assets for the periods indicated. We calculate annualized yields using a simple average of asset classes at the beginning and end of the reporting period. The yields for available-for-sale fixed maturities are calculated using amortized cost. All other yields are calculated using carrying amounts.

	For the three months ended September 30,												For the nine months ended September 30,
	2021				2020				Increase (decrease)				2021				2020				Increase (decrease)
	Yield		Amount		Yield		Amount		Yield		Amount		Yield		Amount		Yield		Amount		Yield		Amount
	($ in millions)
Fixed maturities	4.0	%	$	706.2	3.8	%	$	651.3	0.2	%	$	54.9	3.9	%	$	2,071.4	3.9	%	$	1,995.4	—	%	$	76.0
Equity securities	1.5			9.2	1.6			7.5	(0.1)			1.7	2.0			34.2	2.5			35.3	(0.5)			(1.1)
Mortgage loans - commercial	3.9			159.7	4.3			161.6	(0.4)			(1.9)	4.0			475.1	4.2			480.0	(0.2)			(4.9)
Mortgage loans - residential	4.5			30.8	3.8			16.0	0.7			14.8	4.6			87.5	4.6			55.4	—			32.1
Real estate	10.2			49.8	5.7			24.8	4.5			25.0	7.8			110.4	9.5			124.8	(1.7)			(14.4)
Policy loans	5.0			9.6	5.2			10.3	(0.2)			(0.7)	5.0			29.3	5.3			31.5	(0.3)			(2.2)
Cash and cash equivalents	0.1			1.0	0.2			2.0	(0.1)			(1.0)	0.1			2.8	0.7			15.8	(0.6)			(13.0)
Other investments	11.6			156.0	6.0			70.5	5.6			85.5	11.2			441.2	5.4			190.8	5.8			250.4
Total	4.3			1,122.3	3.8			944.0	0.5			178.3	4.2			3,251.9	4.0			2,929.0	0.2			322.9
Investment expenses	(0.1)			(28.9)	(0.1)			(26.1)	—			(2.8)	(0.1)			(84.9)	(0.1)			(82.9)	—			(2.0)
Net investment income	4.2	%	$	1,093.4	3.7	%	$	917.9	0.5	%	$	175.5	4.1	%	$	3,167.0	3.9	%	$	2,846.1	0.2	%	$	320.9

Three and Nine Months Ended September 30, 2021 Compared to Three and Nine Months Ended September 30, 2020

Net investment income increased primarily due to favorable U.S. market performance on certain alternative investments and higher bond prepayments included in variable investment income and higher inflation-based investment returns on our Latin America average invested assets and cash.

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Net Realized Capital Gains (Losses)

The following table presents the contributors to net realized capital gains and losses for the periods indicated.

	For the three months ended September 30,						For the nine months ended September 30,
					Increase						Increase
	2021		2020		(decrease)		2021		2020		(decrease)
	(in millions)
Fixed maturities, available-for-sale – credit losses, including credit sales (1)	$	(9.6)	$	(20.8)	$	11.2	$	(27.6)	$	(58.0)	$	30.4
Commercial mortgage loans – credit gains (losses)		1.5		(0.5)		2.0		8.0		(14.1)		22.1
Other – credit losses		1.1		0.3		0.8		6.2		(1.1)		7.3
Fixed maturities, available-for-sale and trading – noncredit		9.2		15.9		(6.7)		7.3		125.9		(118.6)
Derivatives and related hedge activities (2)		(174.3)		(34.0)		(140.3)		(143.5)		83.2		(226.7)
Other gains (losses)		20.1		104.6		(84.5)		107.9		33.6		74.3
Net realized capital gains (losses) (3)	$	(152.0)	$	65.5	$	(217.5)	$	(41.7)	$	169.5	$	(211.2)

(1) Includes credit sales, adjustments to the credit loss valuation allowance, write-offs and recoveries on available-for-sale securities.

(2) Includes fixed maturities, trading net gains (losses) of $(1.1) million and $3.8 million for the three months ended September 30, 2021 and 2020, and $(3.6) million and $4.0 million for the nine months ended September 30, 2021 and 2020, respectively, which are a component of the GMWB embedded derivative hedging program net realized capital gains (losses) reflected in this line.

(3) Net realized capital gains (losses) can be volatile due to credit losses from invested assets, mark-to-market adjustments of certain invested assets and our decision to sell invested assets.

Three Months Ended September 30, 2021 Compared to Three Months Ended September 30, 2020

Net realized capital losses in 2021 as compared to gains in 2020 were primarily due to higher losses on currency derivatives not designated as hedging instruments due to changes in exchange rates and net losses in 2021 as compared to net gains in 2020 for GMWB embedded derivatives, including changes in the spread reflecting our own creditworthiness, and related hedging instruments. Additionally, other gains decreased primarily due to prior year activity including gains on the sale of joint venture real estate investments and on equity securities related to mark-to-market changes.

Nine Months Ended September 30, 2021 Compared to Nine Months Ended September 30, 2020

Net realized capital losses in 2021 as compared to gains in 2020 were primarily due to increased net losses from GMWB embedded derivatives, including changes in the spread reflecting our own creditworthiness, and related hedging instruments and losses in 2021 compared to gains in 2020 on currency derivatives not designated as hedging instruments due to changes in exchange rates. Additionally, decreased gains were seen in fixed maturities, available-for-sale and trading - noncredit due to noncredit gains related to portfolio rebalancing in 2020 and lower mark-to-market gains on trading fixed maturities. These decreases were largely offset by an increase in other gains from sponsored investment funds and equity securities related primarily to mark-to-market changes combined with the sale of joint venture real estate investments in 2020.

U.S. Investment Operations

Of our invested assets, $99,660.9 million were held by our U.S. operations as of September 30, 2021. Our U.S. invested assets are managed primarily by our Principal Global Investors segment. Our Investment Committee, appointed by our Board, is responsible for establishing investment policies and monitoring risk limits and tolerances. Our primary investment objective is to maximize after-tax returns consistent with acceptable risk parameters. We seek to protect customers’ benefits by optimizing the risk/return relationship on an ongoing basis, through asset/liability matching, reducing credit risk, avoiding high levels of investments that may be redeemed by the issuer, maintaining sufficiently liquid investments and avoiding undue asset concentrations through diversification. We are exposed to two primary sources of investment risk:

● credit risk, relating to the uncertainty associated with the continued ability of an obligor to make timely payments of principal and interest and

● interest rate risk, relating to the market price and/or cash flow variability associated with changes in market yield curves.

Our ability to manage credit risk is essential to our business and our profitability. We devote considerable resources to the credit analysis of each new investment. We manage credit risk through industry, issuer and asset class diversification.

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A dedicated committee, comprised of senior investment professional staff members, approves the credit rating for the fixed maturities we purchase. We have teams of security analysts, organized by industry and asset class, that analyze and monitor these investments. Investments held in the portfolio are monitored on a continuous basis with a formal review annually or more frequently if material events affect the issuer. The analysis includes both fundamental and technical factors. The fundamental analysis encompasses both quantitative and qualitative analysis of the issuer. The qualitative analysis includes an assessment of both accounting and management aggressiveness of the issuer. In addition, technical indicators such as stock price volatility and credit default swap levels are monitored. We regularly review our investments to determine whether we should re-rate them, employing the following criteria:

● material changes in the issuer’s revenues, margins, capital structure or collateral values;

● significant management or organizational changes;

● significant changes regarding the issuer’s industry;

● debt service coverage or cash flow ratios that fall below industry-specific thresholds;

● violation of financial covenants and

● other business factors that relate to the issuer.

We purchase credit default swaps to hedge certain credit exposures in our investment portfolio. We economically hedged credit exposure in our portfolio by purchasing credit default swaps with a notional amount of $145.0 million and $125.0 million as of September 30, 2021 and December 31, 2020, respectively. We sell credit default swaps to offer credit protection to investors when entering into synthetic replicating transactions. When selling credit protection, if there is an event of default by the referenced name, we are obligated to pay the counterparty the referenced amount of the contract and receive in return the referenced security. For further information on credit derivatives sold, see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 4, Derivative Financial Instruments” under the caption, “Credit Derivatives Sold.”

Our use of derivatives exposes us to counterparty risk, or the risk that the counterparty fails to perform the terms of the derivative contract. We actively manage this risk by:

● obtaining approval of all new counterparties by the Investment Committee;

● establishing exposure limits that take into account non-derivative exposure we have with the counterparty as well as derivative exposure;

● performing similar credit analysis prior to approval on each derivatives counterparty that we do when lending money on a long-term basis;

● diversifying our risk across numerous approved counterparties;

● implementing credit support annex (collateral) agreements (“CSAs”) for over-the-counter derivative transactions or similar agreements with a majority of our counterparties to further limit counterparty exposures, which provide for netting of exposures;

● limiting exposure to A credit or better for over-the-counter derivative counterparties without CSAs;

● conducting stress-test analysis to determine the maximum exposure created during the life of a prospective transaction;

● daily monitoring of counterparty credit ratings, exposures and associated collateral levels and

● trading mandatorily cleared contracts through centralized clearinghouses.

We manage our exposure on a net basis, whereby we net positive and negative exposures for each counterparty with agreements in place. For further information on derivative exposure, see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 3, Investments” under the caption, “Balance Sheet Offsetting.”

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A dedicated risk management team is responsible for centralized monitoring of the commercial mortgage loan portfolio. We apply a variety of guidelines to minimize credit risk in our commercial mortgage loan portfolio. When considering new commercial mortgage loans, we review the cash flow fundamentals of the property, make a physical assessment of the underlying commercial real estate, conduct a comprehensive market analysis and compare against industry lending practices. We use a proprietary risk rating model to evaluate all new and substantially all existing loans within the portfolio. The proprietary risk model is designed to stress projected cash flows under simulated economic and market downturns. Our lending guidelines are typically 75% or less loan-to-value ratio and a debt service coverage ratio of at least 1.2 times. We analyze investments outside of these guidelines based on cash flow quality, tenancy and other factors. The following table presents loan-to-value and debt service coverage ratios for our brick and mortar commercial mortgage loans:

	Weighted average loan-to-value ratio				Debt service coverage ratio
	September 30, 2021		December 31, 2020		September 30, 2021		December 31, 2020
New mortgages	49	%	49	%	3.4	x	2.5	x
Entire mortgage portfolio	47	%	49	%	2.6	x	2.5	x

We also seek to manage call or prepayment risk arising from changes in interest rates. We assess and price for call or prepayment risks in all of our investments and monitor these risks in accordance with asset/liability management policies.

The amortized cost and weighted average yield, calculated using amortized cost, of non-structured fixed maturity securities that will be callable at the option of the issuer, excluding securities with a make-whole provision, were $4,970.4 million and 4.0%, respectively, as of September 30, 2021, and $9,372.5 million and 4.0%, respectively, as of December 31, 2020. In addition, the amortized cost and weighted average yield of RMBS, residential collateralized mortgage obligations, and asset-backed securities - home equity with material prepayment risk were $6,294.9 million and 3.0%, respectively, as of September 30, 2021, and $6,122.7 million and 3.0%, respectively, as of December 31, 2020.

Our investment decisions and objectives are a function of the underlying risks and product profiles of each primary business operation. In addition, we diversify our product portfolio offerings to include products that contain features that will protect us against fluctuations in interest rates. Those features include adjustable crediting rates, policy surrender charges and market value adjustments on liquidations. For further information on our management of interest rate risk, see Item 3. “Quantitative and Qualitative Disclosures About Market Risk – Interest Rate Risk.”

Overall Composition of U.S. Invested Assets

As shown in the following table, the major categories of U.S. invested assets are fixed maturities and commercial mortgage loans. The following discussion analyzes the composition of U.S. invested assets, but excludes invested assets of the separate accounts.

	September 30, 2021				December 31, 2020
	Carrying amount		% of total		Carrying amount		% of total
	($ in millions)
Fixed maturities:
Public	$	45,905.1	46	%	$	47,818.3	49	%
Private		27,892.7	28			27,228.8	28
Equity securities		1,098.2	1			545.8	1
Mortgage loans:
Commercial		15,861.9	16			14,952.3	15
Residential		2,731.5	3			1,511.0	1
Real estate held for sale		40.6	—			1.2	—
Real estate held for investment		1,908.0	2			1,794.9	2
Policy loans		747.3	1			764.1	1
Other investments		3,475.6	3			3,214.7	3
Total invested assets		99,660.9	100	%		97,831.1	100	%
Cash and cash equivalents		2,896.2				2,607.2
Total invested assets and cash	$	102,557.1			$	100,438.3

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Fixed Maturities

Fixed maturities include bonds, ABS, redeemable preferred stock and certain non-redeemable preferred securities. Included in the privately placed category as of September 30, 2021 and December 31, 2020, were $18.2 billion and $18.6 billion, respectively, of securities subject to certain holding periods and resale restrictions pursuant to Rule 144A of the Securities Act of 1933.

Fixed maturities were diversified by category of issuer, as shown in the following table for the periods indicated.

	September 30, 2021				December 31, 2020
	Carrying		Percent		Carrying		Percent
	amount		of total		amount		of total
	($ in millions)
U.S. government and agencies	$	1,900.0	3	%	$	2,086.1	3	%
Non-U.S. governments		952.7	1			950.3	1
States and political subdivisions		9,218.2	13			9,156.5	12
Corporate - public		22,905.6	31			24,944.6	33
Corporate - private		19,872.3	27			18,706.0	25
Residential mortgage-backed pass-through securities		3,007.1	4			3,165.0	4
Commercial mortgage-backed securities		5,277.2	7			4,936.9	7
Residential collateralized mortgage obligations		3,310.4	4			3,053.2	4
Asset-backed securities		7,354.3	10			8,048.5	11
Total fixed maturities	$	73,797.8	100	%	$	75,047.1	100	%

We believe it is desirable to hold residential mortgage-backed pass-through securities due to their credit quality and liquidity as well as portfolio diversification characteristics. Our portfolio is comprised of Government National Mortgage Association, Federal National Mortgage Association and Federal Home Loan Mortgage Corporation pass-through securities. In addition, our residential collateralized mortgage obligation portfolio offers structural features that allow cash flows to be matched to our liabilities.

We purchase CMBS to diversify the overall credit risks of the fixed maturities portfolio and to provide attractive returns. The primary risks in holding CMBS are structural and credit risks. Structural risks include the security’s priority in the issuer’s capital structure, the adequacy of and ability to realize proceeds from the collateral and the potential for prepayments. Credit risks involve collateral and issuer/servicer risk where collateral and servicer performance may deteriorate. CMBS are predominantly comprised of large pool securitizations that are diverse by property type, borrower and geographic dispersion. The risks to any CMBS deal are determined by the credit quality of the underlying loans and how those loans perform over time. Another key risk is the vintage of the underlying loans and the state of the markets during a particular vintage.

Similar to CMBS, we purchase ABS for diversification and to provide attractive returns. The primary risks in holding ABS are also structural and credit risks, which are similar to those noted above for CMBS. Our ABS portfolio is diversified by type of asset, issuer, and vintage. We actively monitor holdings of ABS to recognize adverse changes in the risk profile of each security. Prepayments in the ABS portfolio are, in general, insensitive to changes in interest rates or are insulated from such changes by call protection features. In the event we are subject to prepayment risk, we monitor the factors that impact the level of prepayment and prepayment speed for those ABS. In addition, we hold a diverse class of securities, which limits our exposure to any one security.

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The international exposure held in our U.S. operation’s fixed maturities portfolio was 16% of total fixed maturities as of both September 30, 2021, and December 31, 2020. It is comprised of corporate and foreign government fixed maturities. The following table presents the carrying amount of our international exposure for our U.S. operation’s fixed maturities portfolio for the periods indicated.

	September 30, 2021		December 31, 2020
	(in millions)
European Union, excluding UK	$	2,831.1	$	3,015.5
United Kingdom		2,102.7		2,135.7
Australia/New Zealand		2,060.7		2,106.6
Latin America		1,615.0		1,502.0
Asia-Pacific		1,338.1		1,372.1
Middle East and Africa		946.8		907.5
Europe, non-European Union		749.0		849.5
Other (1)		244.0		224.8
Total	$	11,887.4	$	12,113.7

(1) Includes exposure from two countries and various supranational organizations as of both September 30, 2021, and December 31, 2020.

International fixed maturities exposure is determined by the country of risk of the obligor entity. All international fixed maturities held by our U.S. operations are either denominated in U.S. dollars or have been swapped into U.S. dollar equivalents. Our international investments are analyzed internally by country and industry credit investment professionals. We control concentrations using issuer and country level exposure benchmarks, which are based on the credit quality of the issuer and the country. Our investment policy limits total international fixed maturities investments and we are within those internal limits. Exposure to Canada is not included in our international exposure. As of September 30, 2021 and December 31, 2020, our investments in Canada totaled $1,841.5 million and $2,037.9 million, respectively.

Fixed Maturities Credit Concentrations. One aspect of managing credit risk is through industry, issuer and asset class diversification. Our credit concentrations are managed to established limits. The following table presents our top ten exposures as of September 30, 2021.

	Amortized cost
	(in millions)
Berkshire Hathaway Inc.	$	289.1
NextEra Energy, Inc		237.6
Comcast Corporation		221.2
Emirate of Abu Dhabi		221.1
Sempra Energy		215.5
Bank of America Corporation		215.4
Duke Energy Corporation		213.0
JPMorgan Chase & Co.		211.7
Wells Fargo & Company		208.4
The Walt Disney Company		206.3
Total top ten exposures	$	2,239.3

Fixed Maturities Valuation and Credit Quality. Valuation techniques for the fixed maturities portfolio vary by security type and the availability of market data. The use of different pricing techniques and their assumptions could produce different financial results. See Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 10, Fair Value Measurements” for further details regarding our pricing methodology. Once prices are determined, they are reviewed by pricing analysts for reasonableness based on asset class and observable market data. Investment analysts who are familiar with specific securities review prices for reasonableness through direct interaction with external sources, review of recent trade activity or use of internal models. All fixed maturities placed on the “watch list” are periodically analyzed by investment analysts. These analysts periodically meet with the Chief Investment Officer and the Portfolio Managers to determine reasonableness of the analysts’ prices. The valuation of bonds for which a credit loss exists and there is no quoted price is typically based on relative value analysis and the present value of the future cash flows expected to be received. Although we believe these values reasonably reflect the fair value of those securities, the key assumptions about risk premiums, performance of underlying collateral (if any) and other market factors involve qualitative and unobservable inputs.

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The Securities Valuation Office (“SVO”) of the National Association of Insurance Commissioners (“NAIC”) monitors the bond investments of insurers for regulatory capital and reporting purposes and, when required, assigns securities to one of six categories referred to as NAIC designations. Although NAIC designations are not produced to aid the investment decision making process, NAIC designations may serve as a reasonable proxy for Nationally Recognized Statistical Rating Organizations’ (“NRSRO”) credit ratings for certain bonds. For most corporate bonds, NAIC designations 1 and 2 include bonds generally considered investment grade by such rating organizations. Bonds are considered investment grade when rated ‘‘Baa3’’ or higher by Moody’s, or ‘‘BBB-’’ or higher by S&P. NAIC designations 3 through 6 include bonds generally referred to as below investment grade. Bonds are considered below investment grade when rated ‘‘Ba1’’ or lower by Moody’s, or ‘‘BB+’’ or lower by S&P.

For loan-backed and structured securities, as defined by the NAIC, the NAIC designation is not always a reasonable indication of an NRSRO rating as described below. For CMBS and non-agency RMBS, Blackrock Solutions undertakes the modeling of those NAIC designations. This may result in a final designation being higher or lower than the NRSRO credit rating.

The following table presents our total fixed maturities by NAIC designation as of the periods indicated as well as the percentage, based on fair value, that each designation comprises.

	September 30, 2021						December 31, 2020
					Percent of						Percent of
	Amortized		Carrying		carrying		Amortized		Carrying		carrying
NAIC designation	cost		amount		amount		cost		amount		amount
	($ in millions)
1	$	44,193.8	$	47,436.3	64	%	$	44,265.2	$	48,772.3	65	%
2		19,577.8		21,734.1	30			19,106.8		21,827.8	29
3		4,076.7		4,231.3	6			3,720.5		3,910.5	5
4		319.1		322.7	—			524.3		513.6	1
5		12.0		11.4	—			19.9		17.1	—
6		76.1		62.0	—			10.3		5.8	—
Total fixed maturities	$	68,255.5	$	73,797.8	100	%	$	67,647.0	$	75,047.1	100	%

Fixed maturities included 68 securities with an amortized cost of $766.3 million, gross gains of $22.8 million, gross losses of $0.8 million and a carrying amount of $788.3 million as of September 30, 2021, that were still pending a review and assignment of a designation by the SVO. Due to the timing of when fixed maturities are purchased, legal documents are filed and the review by the SVO is completed, we will always have securities in our portfolio that are unrated over a reporting period. In these instances, an equivalent designation is assigned based on our fixed income analyst’s assessment.

Commercial Mortgage-Backed Securities. As of September 30, 2021, based on amortized cost, 89% of our CMBS portfolio had an NAIC designation of 1.

The following table presents our exposure by credit quality based on NAIC designations for our CMBS portfolio as of the periods indicated.

	September 30, 2021				December 31, 2020
	Amortized		Carrying		Amortized		Carrying
NAIC designation	cost		amount		cost		amount
	(in millions)
1	$	4,509.4	$	4,666.4	$	4,148.4	$	4,315.3
2		134.8		144.0		114.5		122.7
3		352.4		377.5		378.7		403.8
4		82.9		88.0		87.3		90.5
5		—		—		4.4		2.9
6		1.7		1.3		3.2		1.7
Total (1)	$	5,081.2	$	5,277.2	$	4,736.5	$	4,936.9

(1) The CMBS portfolio included agency CMBS with a $294.1 million amortized cost and a $301.9 million carrying amount as of September 30, 2021, and a $285.3 million amortized cost and a $297.3 million carrying amount as of December 31, 2020.

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Fixed Maturities Watch List. We monitor any decline in the credit quality of fixed maturities through the designation of “problem securities,” “potential problem securities” and “restructured securities”. We define problem securities in our fixed maturity portfolio as securities: (i) with principal and/or interest payments in default or where default is perceived to be imminent in the near term, or (ii) issued by a company that went into bankruptcy subsequent to the acquisition of such securities. We define potential problem securities in our fixed maturity portfolio as securities included on an internal “watch list” for which management has concerns as to the ability of the issuer to comply with the present debt payment terms and which may result in the security becoming a problem or being restructured. The decision whether to classify a performing fixed maturity security as a potential problem involves significant subjective judgments by our management as to the likely future industry conditions and developments with respect to the issuer. We define restructured securities in our fixed maturity portfolio as securities where a concession has been granted to the borrower related to the borrower’s financial difficulties that would not have otherwise been considered. We determine that restructures should occur in those instances where greater economic value will be realized under the new terms than through liquidation or other disposition and may involve a change in contractual cash flows. If the present value of the restructured cash flows is less than the current cost of the asset being restructured, a realized capital loss is recorded in net income and a new cost basis is established.

The following table presents the total carrying amount of our fixed maturities portfolio, as well as its problem, potential problem and restructured fixed maturities for the periods indicated.

	September 30, 2021			December 31, 2020
	($ in millions)
Total fixed maturities (public and private)	$	73,797.8		$	75,047.1
Problem fixed maturities (1)	$	69.3		$	31.7
Potential problem fixed maturities		10.6			72.6
Total problem, potential problem and restructured fixed maturities	$	79.9		$	104.3
Total problem, potential problem and restructured fixed maturities as a percent of total fixed maturities		0.11	%		0.14	%

(1) The problem fixed maturities carrying amount is net of the credit loss valuation allowance.

Fixed Maturities Credit Losses. Each reporting period, a group of individuals including the Chief Investment Officer, our Portfolio Managers, the assigned analysts and representatives from Investment Accounting review all securities to determine whether a credit loss exists. The analysis focuses on each issuer’s ability to service its debts in a timely fashion. Formal documentation of the analysis and our decision is prepared and approved by management. For additional details regarding our process to identify and evaluate securities with credit losses, see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 3, Investments” under the caption “Allowance for Credit Loss.”

We would not consider a security with unrealized losses to have a decline in value due to credit when it is not our intent to sell the security, it is not more likely than not that we would be required to sell the security before recovery of the amortized cost, which may be maturity, and we expect to recover the amortized cost basis. However, we do sell securities under certain circumstances, such as when we have evidence of a change in the issuer’s creditworthiness, when we anticipate poor relative future performance of securities, when a change in regulatory requirements modifies what constitutes a permissible investment or the maximum level of investments held or when there is an increase in capital requirements or a change in risk weights of debt securities. Sales generate both gains and losses.

A number of significant risks and uncertainties are inherent in the process of monitoring credit losses and determining the allowance for credit loss. These risks and uncertainties include: (1) the risk that our assessment of an issuer’s ability to meet all of its contractual obligations will change based on changes in the credit characteristics of that issuer, (2) the risk that the economic outlook will be worse than expected or have more of an impact on the issuer than anticipated, (3) the risk that our investment professionals are making decisions based on fraudulent or misstated information in the financial statements provided by issuers and (4) the risk that new information obtained by us or changes in other facts and circumstances lead us to change our intent to not sell the security prior to recovery of its amortized cost. Any of these situations could result in a charge to net income in a future period.

The net realized loss relating to the change in the allowance for credit loss and credit related sales of fixed maturities was $9.6 million and $17.4 million for the three months ended September 30, 2021 and 2020, respectively, and $24.7 million and $51.9 million for the nine months ended September 30, 2021 and 2020, respectively.

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Fixed Maturities Available-for-Sale

The following tables present our fixed maturities available-for-sale by industry category, as of the periods indicated.

	September 30, 2021
			Gross		Gross		Allowance
	Amortized		unrealized		unrealized		for credit		Carrying
	cost		gains		losses		loss		amount
	(in millions)
Finance — Banking	$	4,598.1	$	382.4	$	11.0	$	—	$	4,969.5
Finance — Brokerage		791.7		82.2		5.1		—		868.8
Finance — Finance Companies		599.7		30.4		3.3		12.5		614.3
Finance — Financial Other		850.7		28.2		0.1		—		878.8
Finance — Insurance		2,831.6		424.0		3.8		—		3,251.8
Finance — Real estate investment trusts (“REITs”)		2,322.7		175.8		1.7		—		2,496.8
Industrial — Basic Industry		1,794.7		190.4		2.2		—		1,982.9
Industrial — Capital Goods		2,175.0		222.3		8.0		—		2,389.3
Industrial — Communications		3,055.4		433.3		9.8		—		3,478.9
Industrial — Consumer Cyclical		1,879.8		110.9		7.7		—		1,983.0
Industrial — Consumer Non-Cyclical		4,486.5		518.2		14.0		—		4,990.7
Industrial — Energy		2,708.2		367.5		8.3		—		3,067.4
Industrial — Other		683.5		51.8		0.5		—		734.8
Industrial — Technology		2,477.7		221.7		11.1		—		2,688.3
Industrial — Transportation		2,125.9		208.1		1.7		—		2,332.3
Utility — Electric		3,947.0		468.7		16.6		—		4,399.1
Utility — Natural Gas		626.5		74.8		2.1		—		699.2
Utility — Other		473.0		34.0		3.7		—		503.3
Government guaranteed		261.2		41.6		—		—		302.8
Total corporate securities		38,688.9		4,066.3		110.7		12.5		42,632.0
Residential mortgage-backed pass-through securities		2,806.7		82.8		15.7		—		2,873.8
Commercial mortgage-backed securities		5,054.9		218.2		21.9		0.3		5,250.9
Residential collateralized mortgage obligations		3,223.7		103.0		16.4		—		3,310.3
Asset-backed securities — Home equity (1)		131.1		13.3		0.1		0.1		144.2
Asset-backed securities — All other		3,586.1		45.7		7.3		—		3,624.5
Collateralized debt obligations — Credit		16.8		—		5.1		—		11.7
Collateralized debt obligations — CMBS		—		1.0		—		—		1.0
Collateralized debt obligations — Loans		3,552.8		6.3		5.5		—		3,553.6
Total mortgage-backed and other asset-backed securities		18,372.1		470.3		72.0		0.4		18,770.0
U.S. government and agencies		1,801.3		138.7		40.5		—		1,899.5
States and political subdivisions		8,237.0		1,002.8		26.9		—		9,212.9
Non-U.S. governments		823.0		128.0		0.8		—		950.2
Total fixed maturities, available-for-sale	$	67,922.3	$	5,806.1	$	250.9	$	12.9	$	73,464.6

(1) This exposure is all related to sub-prime mortgage loans.

115

	December 31, 2020
			Gross		Gross		Allowance
	Amortized		unrealized		unrealized		for credit		Carrying
	cost		gains		losses		loss		amount
	(in millions)
Finance — Banking	$	4,924.8	$	535.5	$	12.5	$	—	$	5,447.8
Finance — Brokerage		760.5		100.6		0.1		—		861.0
Finance — Finance Companies		469.7		22.1		7.5		—		484.3
Finance — Financial Other		420.9		28.3		—		—		449.2
Finance — Insurance		2,670.4		512.0		0.1		—		3,182.3
Finance — REITs		2,147.7		231.4		0.3		—		2,378.8
Industrial — Basic Industry		1,871.7		252.1		—		—		2,123.8
Industrial — Capital Goods		2,305.3		279.3		2.9		—		2,581.7
Industrial — Communications		3,129.7		559.6		2.7		—		3,686.6
Industrial — Consumer Cyclical		1,897.9		187.9		3.7		—		2,082.1
Industrial — Consumer Non-Cyclical		4,467.5		721.2		1.3		—		5,187.4
Industrial — Energy		2,873.1		433.4		14.2		—		3,292.3
Industrial — Other		677.0		77.5		0.6		—		753.9
Industrial — Technology		2,180.3		293.8		2.4		—		2,471.7
Industrial — Transportation		2,175.9		298.4		12.6		—		2,461.7
Utility — Electric		4,005.4		649.4		2.9		—		4,651.9
Utility — Natural Gas		615.1		110.4		—		—		725.5
Utility — Other		384.8		50.0		—		—		434.8
Government guaranteed		193.3		43.7		—		—		237.0
Total corporate securities		38,171.0		5,386.6		63.8		—		43,493.8
Residential mortgage-backed pass-through securities		2,845.7		129.0		0.2		—		2,974.5
Commercial mortgage-backed securities		4,709.4		240.0		35.3		4.3		4,909.8
Residential collateralized mortgage obligations		2,905.7		149.4		2.7		—		3,052.4
Asset-backed securities — Home equity (1)		180.0		15.4		0.8		—		194.6
Asset-backed securities — All other		3,745.3		78.3		26.4		—		3,797.2
Collateralized debt obligations — Credit		16.8		—		5.1		—		11.7
Collateralized debt obligations — CMBS		—		0.7		—		—		0.7
Collateralized debt obligations — Loans		4,029.1		8.0		19.8		2.2		4,015.1
Total mortgage-backed and other asset-backed securities		18,432.0		620.8		90.3		6.5		18,956.0
U.S. government and agencies		1,870.1		226.0		10.5		—		2,085.6
States and political subdivisions		7,990.3		1,174.1		12.6		—		9,151.8
Non-U.S. governments		771.4		176.3		—		—		947.7
Total fixed maturities, available-for-sale	$	67,234.8	$	7,583.8	$	177.2	$	6.5	$	74,634.9

(1) This exposure is all related to sub-prime mortgage loans.

Of the $250.9 million in gross unrealized losses as of September 30, 2021, $0.2 million in losses were attributed to securities scheduled to mature in one year or less, $11.5 million attributed to securities scheduled to mature between one to five years, $46.5 million attributed to securities scheduled to mature between five to ten years, $120.7 million attributed to securities scheduled to mature after ten years and $72.0 million related to mortgage-backed and other ABS that are not classified by maturity year. As of September 30, 2021, we were in a $5,555.2 million net unrealized gain position as compared to a $7,406.6 million net unrealized gain position as of December 31, 2020. The $1,851.4 million decrease in net unrealized gains for the nine months ended September 30, 2021, can be attributed to an approximate 53 basis points increase in interest rates, partially offset by tightening of credit spreads.

Fixed Maturities Available-For-Sale Unrealized Losses. We believe our long-term fixed maturities portfolio is well diversified among industry types and between publicly traded and privately placed securities. Each year, we direct the majority of our net cash inflows into investment grade fixed maturities. Our current policy is to limit the percentage of fixed maturities invested in below investment grade assets to 15%.

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We invest in privately placed fixed maturities to enhance the overall value of the portfolio, increase diversification and obtain higher yields than are possible with comparable quality public market securities. Generally, private placements provide broader access to management information, strengthened negotiated protective covenants, call protection features and, where applicable, a higher level of collateral. They are, however, generally not freely tradable because of restrictions imposed by U.S. federal and state securities laws and illiquid trading markets.

The following table presents our fixed maturities available-for-sale by investment grade and below investment grade as of the periods indicated.

	September 30, 2021										December 31, 2020
			Gross		Gross		Allowance						Gross		Gross		Allowance
	Amortized		unrealized		unrealized		for credit		Carrying		Amortized		unrealized		unrealized		for credit		Carrying
	cost		gains		losses		loss		amount		cost		gains		losses		loss		amount
	(in millions)
Investment grade:
Public	$	39,606.5	$	4,200.1	$	149.4	$	0.3	$	43,656.9	$	40,025.5	$	5,504.9	$	58.8	$	0.2	$	45,471.4
Private		23,846.1		1,415.4		66.9		0.1		25,194.5		22,951.9		1,855.2		71.7		1.3		24,734.1
Below investment grade:
Public		1,862.6		132.0		6.7		—		1,987.9		1,912.8		127.3		19.0		—		2,021.1
Private		2,607.1		58.6		27.9		12.5		2,625.3		2,344.6		96.4		27.7		5.0		2,408.3
Total fixed maturities, available-for-sale	$	67,922.3	$	5,806.1	$	250.9	$	12.9	$	73,464.6	$	67,234.8	$	7,583.8	$	177.2	$	6.5	$	74,634.9

The following tables present the carrying amount and the gross unrealized losses on our fixed maturities available-for-sale for which an allowance for credit loss has not been recorded by grade and aging category as of September 30, 2021 and December 31, 2020, respectively.

	September 30, 2021
	Public				Private				Total
			Gross				Gross				Gross
	Carrying		unrealized		Carrying		unrealized		Carrying		unrealized
	amount		losses		amount		losses		amount		losses
	(in millions)
Investment grade:
Three months or less	$	3,001.5	$	28.5	$	2,622.2	$	14.4	$	5,623.7	$	42.9
Greater than three to six months		80.0		0.6		490.8		2.8		570.8		3.4
Greater than six to nine months		1,541.8		51.7		950.3		20.8		2,492.1		72.5
Greater than nine to twelve months		356.9		23.3		206.6		8.7		563.5		32.0
Greater than twelve to twenty-four months		481.4		36.7		470.3		12.5		951.7		49.2
Greater than twenty-four to thirty-six months		49.6		2.8		44.7		—		94.3		2.8
Greater than thirty-six months		64.4		3.7		205.4		6.7		269.8		10.4
Total fixed maturities, available-for-sale	$	5,575.6	$	147.3	$	4,990.3	$	65.9	$	10,565.9	$	213.2

	September 30, 2021
	Public				Private				Total
			Gross				Gross				Gross
	Carrying		unrealized		Carrying		unrealized		Carrying		unrealized
	amount		losses		amount		losses		amount		losses
	(in millions)
Below investment grade:
Three months or less	$	124.9	$	1.6	$	588.2	$	6.6	$	713.1	$	8.2
Greater than three to six months		7.7		0.2		19.6		0.4		27.3		0.6
Greater than six to nine months		6.8		0.4		141.2		3.9		148.0		4.3
Greater than nine to twelve months		—		—		14.9		0.2		14.9		0.2
Greater than twelve to twenty-four months		46.0		1.6		125.4		8.2		171.4		9.8
Greater than twenty-four to thirty-six months		33.2		2.8		—		—		33.2		2.8
Greater than thirty-six months		4.7		0.1		13.4		5.5		18.1		5.6
Total fixed maturities, available-for-sale	$	223.3	$	6.7	$	902.7	$	24.8	$	1,126.0	$	31.5

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	September 30, 2021
	Problem, potential				All other fixed
	problem and restructured				maturity securities				Total
			Gross				Gross				Gross
	Carrying		unrealized		Carrying		unrealized		Carrying		unrealized
	amount		losses		amount		losses		amount		losses
	(in millions)
Estimated fair value had declined and remained below amortized cost by 20% or more:
Three months or less	$	1.6	$	0.4	$	4.3	$	1.3	$	5.9	$	1.7
Greater than three to six months		—		—		0.7		0.3		0.7		0.3
Greater than six to nine months		—		—		0.5		0.5		0.5		0.5
Greater than nine to twelve months		—		—		0.9		0.7		0.9		0.7
Greater than twelve months		0.2		0.4		14.6		6.5		14.8		6.9
Total fixed maturities, available-for-sale	$	1.8	$	0.8	$	21.0	$	9.3	$	22.8	$	10.1

	December 31, 2020
	Public				Private				Total
			Gross				Gross				Gross
	Carrying		unrealized		Carrying		unrealized		Carrying		unrealized
	amount		losses		amount		losses		amount		losses
	(in millions)
Investment Grade:
Three months or less	$	641.2	$	6.3	$	573.0	$	4.5	$	1,214.2	$	10.8
Greater than three to six months		490.8		12.8		414.4		5.1		905.2		17.9
Greater than six to nine months		119.7		4.5		92.2		5.1		211.9		9.6
Greater than nine to twelve months		849.2		21.4		1,944.7		38.9		2,793.9		60.3
Greater than twelve to twenty-four months		67.7		2.9		144.7		1.1		212.4		4.0
Greater than twenty-four to thirty-six months		27.4		2.9		693.3		5.5		720.7		8.4
Greater than thirty-six months		85.0		8.0		85.9		11.2		170.9		19.2
Total fixed maturities, available-for-sale	$	2,281.0	$	58.8	$	3,948.2	$	71.4	$	6,229.2	$	130.2

	December 31, 2020
	Public				Private				Total
			Gross				Gross				Gross
	Carrying		unrealized		Carrying		unrealized		Carrying		unrealized
	amount		losses		amount		losses		amount		losses
	(in millions)
Below investment grade:
Three months or less	$	10.2	$	0.1	$	75.6	$	0.2	$	85.8	$	0.3
Greater than three to six months		29.9		0.1		81.8		1.5		111.7		1.6
Greater than six to nine months		7.6		0.5		—		—		7.6		0.5
Greater than nine to twelve months		212.7		13.0		348.5		13.8		561.2		26.8
Greater than twelve to twenty-four months		23.2		3.8		13.4		1.6		36.6		5.4
Greater than twenty-four to thirty-six months		8.5		1.2		62.0		1.9		70.5		3.1
Greater than thirty-six months		5.8		0.3		16.8		6.3		22.6		6.6
Total fixed maturities, available-for-sale	$	297.9	$	19.0	$	598.1	$	25.3	$	896.0	$	44.3

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	December 31, 2020
	Problem, potential				All other fixed
	problem and restructured				maturity securities				Total
			Gross				Gross				Gross
	Carrying		unrealized		Carrying		unrealized		Carrying		unrealized
	amount		losses		amount		losses		amount		losses
	(in millions)
Estimated fair value had declined and remained below amortized cost by 20% or more:
Three months or less	$	—	$	—	$	26.5	$	9.0	$	26.5	$	9.0
Greater than three to six months		—		—		12.3		3.6		12.3		3.6
Greater than six to nine months		1.6		0.4		0.1		0.3		1.7		0.7
Greater than nine to twelve months		—		—		19.6		8.6		19.6		8.6
Greater than twelve months		0.1		0.4		11.7		5.2		11.8		5.6
Total fixed maturities, available-for-sale	$	1.7	$	0.8	$	70.2	$	26.7	$	71.9	$	27.5

Mortgage Loans

Mortgage loans consist of commercial mortgage loans on real estate and residential mortgage loans. For further details about residential mortgage loans, see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 3, Investments” under the caption, “Financing Receivables.”

Commercial Mortgage Loans. We generally report commercial mortgage loans on real estate at cost adjusted for amortization of premiums and accrual of discounts, computed using the interest method and net of valuation allowances.

Commercial mortgage loans play an important role in our investment strategy by:

● providing strong risk-adjusted relative value in comparison to other investment alternatives;

● enhancing total returns and

● providing strategic portfolio diversification.

As a result, we have focused on constructing a high quality portfolio of mortgages. Our portfolio is generally comprised of mortgages originated with conservative loan-to-value ratios, high debt service coverages and general purpose property types with a strong credit tenancy.

Our commercial mortgage loan portfolio consists primarily of non-recourse, fixed rate mortgages on fully or near fully leased properties. The mortgage portfolio is comprised primarily of office properties, apartments, well anchored retail properties and general-purpose industrial properties.

Our commercial mortgage loan portfolio is diversified by geography and specific collateral property type. Commercial mortgage lending in the state of California accounted for 23% and 22% of our commercial mortgage loan portfolio before valuation allowance as of September 30, 2021 and December 31, 2020, respectively. We are, therefore, exposed to potential losses resulting from the risk of catastrophes, such as earthquakes, that may affect the region. Like other lenders, we generally do not require earthquake insurance for properties on which we make commercial mortgage loans. With respect to California properties, however, we obtain an engineering report specific to each property. The report assesses the building’s design specifications, whether it has been upgraded to meet seismic building codes and the maximum loss that is likely to result from a variety of different seismic events. We also obtain a report that assesses, by building and geographic fault lines, the amount of loss our commercial mortgage loan portfolio might suffer under a variety of seismic events.

The typical borrower in our commercial loan portfolio is a single purpose entity or single asset entity. As of September 30, 2021 and December 31, 2020, the total number of commercial mortgage loans outstanding were 756 and 753, of which 42% and 44% were for loans with principal balances less than $10.0 million as of September 30, 2021 and December 31, 2020, respectively. The average loan size of our commercial mortgage portfolio was $21.0 million and $19.9 million as of September 30, 2021 and December 31, 2020, respectively.

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Commercial Mortgage Loan Credit Monitoring. For further details on monitoring and management of our commercial mortgage loan portfolio, see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 3, Investments” under the caption, “Financing Receivables Credit Monitoring.”

We categorize loans that are 60 days or more delinquent, loans in process of foreclosure and loans with borrowers or credit tenants in bankruptcy that are delinquent as “problem” loans. We categorize loans that are delinquent less than 60 days where the default is expected to be cured and loans with borrowers or credit tenants in bankruptcy that are current as “potential problem” loans. The decision whether to classify a loan delinquent less than 60 days as a potential problem involves significant subjective judgments by management as to the likely future economic conditions and developments with respect to the borrower. We categorize loans for which the original note rate has been reduced below market and loans for which the principal has been reduced as “restructured” loans. We also consider loans that are refinanced more than one year beyond the original maturity or call date at below market rates as restructured.

The following table presents the carrying amounts of problem, potential problem and restructured commercial mortgages relative to the carrying amount of all commercial mortgages for the periods indicated.

	September 30, 2021			December 31, 2020
	($ in millions)
Total commercial mortgages	$	15,861.9		$	14,952.3
Potential problem commercial mortgages	$	9.0		$	—
Total problem, potential problem and restructured commercial mortgages	$	9.0		$	—
Total problem, potential problem and restructured commercial mortgages as a percent of total commercial mortgages		0.06	%		—	%

Commercial Mortgage Loan Valuation Allowance. We establish the commercial mortgage loan valuation allowance at levels considered adequate to absorb estimated expected credit losses within the portfolio. For further details on the commercial mortgage loan valuation allowance, see Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 3, Investments” under the caption, “Financing Receivables Valuation Allowance.”

Real Estate

Real estate consists primarily of commercial equity real estate. As of September 30, 2021 and December 31, 2020, the carrying amount of our equity real estate investment was $1,948.6 million and $1,796.1 million, respectively. Our commercial equity real estate is held in the form of wholly owned real estate, real estate acquired upon foreclosure of commercial mortgage loans and majority owned interests in real estate joint ventures.

Equity real estate is categorized as either “real estate held for investment” or “real estate held for sale.” Real estate held for investment totaled $1,908.0 million and $1,794.9 million as of September 30, 2021 and December 31, 2020, respectively. The carrying value of real estate held for investment is generally adjusted for impairments whenever events or changes in circumstances indicate the carrying amount of the asset may not be recoverable. Such impairment adjustments are recorded as net realized capital losses in our consolidated results of operations. Impairment adjustments recorded for the year ended December 31, 2020, were $0.5 million. No such impairment adjustments were recorded for the nine months ended September 30, 2021.

The carrying amount of real estate held for sale was $40.6 million and $1.2 million as of September 30, 2021 and December 31, 2020, respectively. Once we identify a real estate property to be sold and it is probable that it will be sold, we classify the property as held for sale. We establish a valuation allowance subject to periodic revisions, if necessary, to adjust the carrying value of the property to reflect the lower of its current carrying value or the fair value, less associated selling costs. The valuation allowance did not change for the nine months ended September 30, 2021 or for the year ended December 31, 2020.

We use research, both internal and external, to recommend appropriate product and geographic allocations and changes to the equity real estate portfolio. We monitor product, geographic and industry diversification separately and together to determine the most appropriate mix.

Equity real estate is distributed across geographic regions of the country. As of September 30, 2021, our largest equity real estate portfolio concentration was in the Pacific (45%) region of the United States. By property type, our largest concentrations were in Apartments (37%) and Industrial (28%) as of September 30, 2021.

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Other Investments

Our other investments totaled $3,475.6 million as of September 30, 2021, compared to $3,214.7 million as of December 31, 2020. Other investments include interests in unconsolidated entities, which include real estate properties owned jointly with venture partners and operated by the partners; sponsored investment funds; the cash surrender value of company owned and trust owned life insurance; derivative assets and other investments.

International Investment Operations

Of our invested assets, $7,233.5 million were held by our Principal International segment as of September 30, 2021. The assets are primarily managed by the local Principal International affiliate. Due to the regulatory constraints in each location, each company maintains its own investment policies. As shown in the following table, the major category of international invested assets is fixed maturities. The following table excludes invested assets of the separate accounts.

	September 30, 2021				December 31, 2020
	Carrying		Percent		Carrying		Percent
	amount		of total		amount		of total
	($ in millions)
Fixed maturities:
Public	$	3,149.8	44	%	$	4,148.2	49	%
Private		23.0	—			47.1	1
Equity securities		1,330.0	18			1,467.6	17
Mortgage loans:
Commercial		436.3	6			446.1	5
Residential		396.3	6			433.6	5
Real estate held for sale		16.6	—			0.8	—
Real estate held for investment		0.4	—			0.4	—
Policy loans		14.8	—			19.9	—
Other investments:
Direct financing leases		623.1	9			710.7	8
Investment in unconsolidated operating entities		858.1	12			808.3	10
Derivative assets and other investments		385.1	5			393.1	5
Total invested assets		7,233.5	100	%		8,475.8	100	%
Cash and cash equivalents		249.2				242.6
Total invested assets and cash	$	7,482.7			$	8,718.4

Regulations in certain locations require investment in the funds we manage. These required regulatory investments are classified as equity securities within our consolidated statements of financial position, with all mark-to-market changes reflected in net investment income. Our investment is primarily dictated by client activity and all investment performance is retained by us.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Market Risk Exposures and Risk Management

Market risk is the risk we will incur losses due to adverse fluctuations in market rates and prices. Our primary market risk exposures are to interest rates, equity markets and foreign currency exchange rates. The active management of market risk is an integral part of our operations. We manage our overall market risk exposure within established risk tolerance ranges using several approaches, including:

● rebalancing our existing asset or liability portfolios;

● controlling the risk structure of newly acquired assets and liabilities and

● using derivative instruments to modify the market risk characteristics of existing assets or liabilities or assets expected to be purchased.

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Interest Rate Risk

Interest rate risk is the risk of economic losses due to adverse changes in interest rates. Interest rate risk arises primarily from our holdings in interest sensitive assets and liabilities. Changes in interest rates impact numerous aspects of our operations, including but not limited to:

● yield on our invested assets;

● rate of interest we credit to contractholder account balances;

● timing of cash flows on assets and liabilities containing embedded prepayment options;

● cost of hedging our GMWB rider;

● discount rate used in valuing our pension and OPEB obligations;

● estimated gross profits and the amortization of our DAC asset and related actuarial balances;

● statutory reserve and capital requirements;

● asset-based fees earned on the fixed income assets we manage;

● interest expense on our long-term borrowings;

● fair value of intangible assets in our reporting units and

● fair value of financial assets and liabilities held at fair value on our consolidated statements of financial position.

Lower interest rates generally result in lower profitability in the long-term. Conversely, higher interest rates generally result in higher profitability in the long-term. However, an increase in market interest rates may cause a decline in the value of financial assets held at fair value on our consolidated statements of financial position.

Impact of Changes in Long-Term Interest Rate Assumptions

We use long-term interest rate assumptions to calculate reserves, DAC, other actuarial balances and benefit plan obligations in accordance with U.S. GAAP. In setting these assumptions, we consider a variety of factors, including historical experience, emerging trends and future expectations. We evaluate our assumptions on at least an annual basis. Due to the long-term nature of our assumptions, we generally do not revise our assumptions in response to short-term fluctuations in market interest rates. However, we will consider revising our assumptions if a significant change occurs in the factors noted above.

A reduction in our long-term interest rate assumptions may result in increases in our reserves and/or unlocking of our DAC asset and other actuarial balances. For additional information, see Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Policies and Estimates — Deferred Acquisition Costs and Other Actuarial Balances” in our Annual Report on Form 10-K for the year ended December 31, 2020.

In addition, we have implemented reinsurance transactions utilizing affiliated reinsurers and highly rated third parties to finance a portion of the statutory reserves for our term life insurance policies and universal life insurance policies with secondary guarantees. We calculate an economic reserve, which represents an estimate of our liability associated with these contracts. The excess of the required statutory reserve over the economic reserve is secured by financing provided by highly rated third parties. The long-term interest rate assumption is a key input in the calculation of the economic reserve. A reduction in our long-term interest rate assumption would reduce the portion of the statutory reserve that can be financed through affiliated reinsurers, thus increasing the amount of invested assets we must maintain to support statutory reserves. For additional information, see Item 8. “Financial Statements and Supplementary Data, Notes to Consolidated Financial Statements, Note 15, Statutory Insurance Financial Information” in our Annual Report on Form 10-K for the year ended December 31, 2020.

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Impact of Changes in Interest Rates

Changes in interest rates or a sustained low interest rate environment may result in the following impacts, which would impact our financial position and results of operations:

Impact of Falling Interest Rates or Sustained Low Interest Rates	Impact of Rising Interest Rates
Adverse Impacts:	Positive Impacts:
A reduction in investment income, which may be partially offset by a reduction in the interest we credit on contractholder account balances; however, our ability to lower crediting rates may be constrained by guaranteed minimum interest rates and competitive pressures	An increase in investment income, which may be partially or fully offset by an increase in the interest we credit on contractholder account balances
An increase in the cost of hedging our GMWB rider	A decrease in the cost of hedging our GMWB rider
An increase in reserves and/or a true-up or unlocking of our DAC asset and other actuarial balances	A true-up or unlocking of our DAC asset and other actuarial balances
A reduction in the discount rate used in valuing our pension and OPEB obligations, leading to an increase in our Projected Benefit Obligation, Net Periodic Pension Cost, Accumulated Postretirement Benefit Obligation and Net Periodic Benefit Cost	An increase in the discount rate used in valuing our pension and OPEB obligations, leading to a decrease in our Projected Benefit Obligation, Net Periodic Pension Cost, Accumulated Postretirement Benefit Obligation and Net Periodic Benefit Cost
An increase in statutory capital we are required to hold as well as the amount of assets we must maintain to support statutory reserves	A decrease in statutory capital we are required to hold as well as the amount of assets we must maintain to support statutory reserves
An increase in prepayments or redemptions on mortgages and bonds we own, which would force us to reinvest the proceeds at lower interest rates	A decrease in prepayments or redemptions on mortgages and bonds we own, which would reduce our opportunity to reinvest the proceeds at higher interest rates
Positive Impacts:	Adverse Impacts:
An increase in the value of the fixed income assets we manage, resulting in an increase in our fee revenue in the short-term	A decrease in the value of the fixed income assets we manage, resulting in a decrease in our fee revenue in the short-term
A decrease in the interest expense on our long-term borrowings, to the extent the borrowings have adjustable rates or we are able to refinance our obligations at lower interest rates	An increase in the interest expense on our long-term borrowings, to the extent the borrowings have adjustable rates or we refinance our obligations at higher interest rates
An increase in the fair value of certain financial assets held at fair value on our consolidated statements of financial position	A decrease in the fair value of certain financial assets held at fair value on our consolidated statements of financial position, as discussed below
	A reduction in the fair value of intangible assets in our reporting units, potentially leading to an impairment of goodwill or other intangible assets

We estimate a hypothetical 100 basis point immediate, parallel decrease in U.S. interest rates would reduce segment pre-tax operating earnings by less than 1% over the next 12 months excluding the impact of any potential unlocking of our DAC asset and other actuarial balances. This estimate reflects the impact of routine management actions in response to changes in interest rates, such as reducing the interest rates we credit on contractholder account balances, but does not reflect the impact of other actions management may consider, such as curtailing sales of certain products.

The selection of a 100 basis point immediate, parallel decrease in U.S. interest rates should not be construed as a prediction by us of future market events, but rather as an illustration of the impact of such an event. Our exposure will change as a result of ongoing portfolio transactions in response to new business, management’s assessment of changing market conditions and changes in our mix of business.

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If market rates increase rapidly, policy surrenders, withdrawals and requests for policy loans may increase as customers seek to achieve higher returns. This may result in unlocking of our DAC and other actuarial balances. We may be required to sell assets to raise the cash necessary to respond to such surrenders, withdrawals and loans, thereby realizing capital losses on the assets sold.

Guaranteed Minimum Interest Rate Exposure. The following table provides detail on the differences between the interest rates being credited to contractholders as of September 30, 2021, and the respective guaranteed minimum interest rates (“GMIRs”). Amounts for contracts without significant fee revenues such as GICs, funding agreements, individual fixed income annuities and guaranteed pension contracts are excluded. Account values are broken down by GMIR level within the Retirement and Income Solutions and U.S. Insurance Solutions segments.

	Account values (1)
				Excess of crediting rates over GMIR:
				Up to 0.50%			0.51% to 1.00%			1.01% to 2.00%			2.01% or more
	At GMIR			above GMIR			above GMIR			above GMIR			above GMIR			Total
	($ in millions)
Guaranteed minimum interest rate
Retirement and Income Solutions
Up to 1.00%	$	551.1		$	189.0		$	8,266.4		$	2,041.2		$	1,834.3		$	12,882.0
1.01% - 2.00%		537.6			222.5			139.4			428.7			—			1,328.2
2.01% - 3.00%		4,451.1			—			—			—			—			4,451.1
3.01% - 4.00%		194.9			—			—			—			—			194.9
4.01% and above		23.1			—			—			—			—			23.1
Subtotal		5,757.8			411.5			8,405.8			2,469.9			1,834.3			18,879.3
U.S. Insurance Solutions
Up to 1.00%		—			21.3			—			—			—			21.3
1.01% - 2.00%		332.2			—			379.0			595.7			166.9			1,473.8
2.01% - 3.00%		948.1			1,202.0			739.0			58.4			0.3			2,947.8
3.01% - 4.00%		1,758.3			4.5			20.9			29.7			3.1			1,816.5
4.01% and above		48.9			4.1			3.6			1.6			—			58.2
Subtotal		3,087.5			1,231.9			1,142.5			685.4			170.3			6,317.6
Total	$	8,845.3		$	1,643.4		$	9,548.3		$	3,155.3		$	2,004.6		$	25,196.9
Percentage of total		35.1	%		6.5	%		37.9	%		12.5	%		8.0	%		100.0	%

(1) Includes only the account values, net of policy loans, for products with GMIRs and discretionary crediting rates.

In addition to the domestic account values shown in the table above, Principal International had $540.6 million of account values with GMIRs in Brazil as of September 30, 2021. The Brazil amount includes account values from an equity method subsidiary, adjusted to reflect the proportion of the subsidiary’s results reflected in our net income. Our liabilities in Principal International are generally denominated in the functional currency of the location of operation. The pattern of interest rate movements in our international operations will likely differ from the pattern of interest rate movements in the U.S.

Impact of Rising Interest Rates on the Fair Value of Financial Assets. An increase in market interest rates may cause a decline in the value of financial assets held at fair value on our consolidated statements of financial position. Although changes in the fair value of our financial assets due to changes in interest rates may impact the amount of equity reported in our consolidated statements of financial position, these changes will not cause an economic gain or loss unless we sell investments, terminate derivative positions, record an allowance for credit loss, or determine a derivative instrument is no longer an effective hedge.

We estimate a hypothetical 100 basis point immediate, parallel increase in interest rates would reduce the net reported fair value of our financial assets and derivatives by $5,223.8 million as of September 30, 2021, compared to $5,430.2 million as of December 31, 2020. This estimate only reflects the change in fair value for financial assets and derivatives reported at fair value on our consolidated statements of financial position. Assets and liabilities not reported at fair value on our consolidated statements of financial position – including mortgage loans, liabilities relating to insurance contracts, investment contracts, debt and bank deposits – are excluded from this sensitivity analysis. We believe the excluded liability items would economically serve as a partial offset to the net interest rate risk of the financial instruments included in the sensitivity analysis. Separate account assets and liabilities are also excluded from this estimate, as any interest rate risk is borne by the holder of the separate account. For more information on fair value measurements, see Item 8. “Financial Statements and Supplementary Data, Notes to Consolidated Financial Statements, Note 14, Fair Value Measurements” in our Annual Report on Form 10-K for the year ended December 31, 2020.

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Our selection of a 100 basis point immediate, parallel increase in interest rates is a hypothetical rate scenario we use to demonstrate potential risk. While a 100 basis point immediate, parallel increase does not represent our view of future market changes, it is a near term reasonably possible hypothetical change that illustrates the potential impact of such events. While this sensitivity analysis provides a representation of interest rate sensitivity, it is based on our portfolio exposures at a point in time and may not be representative of future market results. These exposures will change as a result of ongoing portfolio transactions in response to new business, management’s assessment of changing market conditions and available investment opportunities.

Our net estimated potential loss in fair value as of September 30, 2021, decreased $206.4 million from December 31, 2020, due to a number of factors including a decrease in the balance of fixed maturities, available-for-sale and normal variation in derivative holdings related to various hedging programs.

Interest Rate Risk Management

We manage interest rate risk through the use of an integrated risk management framework. This helps us identify, assess, monitor, report and manage our risks within established limits and risk tolerances. Our internal risk committees monitor and discuss our risk profile and identify necessary actions to mitigate impacts from interest rate risk.

The product designs within our business units result in a variety of different interest rate risk profiles. Therefore, our business units use a variety of different approaches for managing their asset and liability interest rate risks.

● Retirement Business Stable Cash Flows – For stable and predictable cash flow liabilities, such as pension risk transfer, full service accumulation, investment only, and newer fixed deferred annuities, we use investment strategy and hedges to tightly align the cash flow run off of these asset and liability cash flows. Immunization and embedded value analysis are also utilized in the management of interest rate risk.

● Retirement Business Dynamic Cash Flows – Dynamic liability cash flows, such as older fixed deferred annuities, are sensitive to policyholder behavior and the current interest rate environment. The risk and return metrics from deterministic and stochastic interest rate scenarios are used to manage the interest rate risk for these liabilities.

● U.S. Insurance Stable Cash Flows – Our insurance businesses in many instances contain long-term guarantees with stable and predictable liability cash flows and recurring premiums. We manage the interest rate risk through investment strategy, product crediting rates and analyzing duration and embedded value sensitivity.

● Principal International – Our international businesses operate within local regulations and financial market conditions (e.g., derivative markets, assets available) to achieve similar asset and liability cash flow management objectives. In locations with a limited availability of long-dated assets and derivative markets, the duration gap is managed to risk tolerances specific to each location.

We also limit our exposure to interest rate risk through our business mix and strategy. We have intentionally limited our exposure to specific products where investment margins are critical to the product’s profitability, and we continue to emphasize the sale of products that generate revenues in the form of fees for service or premiums for insurance coverage and expose us to minimal interest rate risk.

Prepayment risk is controlled by limiting our exposure to investments that are prepayable without penalty prior to maturity at the option of the issuer. We also require additional yield on these investments to compensate for the risk the issuer will exercise such option. Prepayment risk is also controlled by limiting the sales of liabilities with features such as puts or other options that can be exercised at inopportune times. We manage the interest rate risk associated with our long-term borrowings by monitoring the interest rate environment and evaluating refinancing opportunities as maturity dates approach.

The plan fiduciaries use a Dynamic Asset Allocation strategy for our qualified defined benefit pension plan, which strategically allocates an increasing portion of the assets of the pension plan to fixed income securities as the funding status improves. The intended purpose of using the Dynamic Asset Allocation strategy is that the expected change in the value of the plan assets and the change in pension benefit obligation due to market movements are more likely to have more correlation versus a static allocation of assets between categories. For more information see Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Policies and Estimates — Benefit Plans” and Item 8. “Financial Statements and Supplementary Data, Notes to Consolidated Financial Statements, Note 11, Employee and Agent Benefits” in our Annual Report on Form 10-K for the year ended December 31, 2020.

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Use of Derivatives to Manage Interest Rate Risk. We use or have used various derivative financial instruments to manage our exposure to fluctuations in interest rates, including interest rate swaps, interest rate options, TBA forwards, treasury forwards, swaptions and futures. We use interest rate swaps, treasury forwards and futures contracts to hedge changes in interest rates subsequent to the issuance of an insurance liability, such as a guaranteed investment contract, but prior to the purchase of a supporting asset, or during periods of holding assets in anticipation of near term liability sales. We use interest rate swaps and have used TBA forwards primarily to more closely match the interest rate characteristics of assets and liabilities. They can be used to change the sensitivity to the interest rate of specific assets and liabilities as well as an entire portfolio. We use interest rate options to manage prepayment risks in our assets and minimum guaranteed interest rates and lapse risks in our liabilities. We have purchased swaptions to hedge interest rate exposure for certain assets and liabilities.

Foreign Currency Risk

Foreign currency risk is the risk we will incur economic losses due to adverse fluctuations in foreign currency exchange rates. This risk arises from foreign currency-denominated funding agreements issued to nonqualified institutional investors in the international market, foreign currency-denominated fixed maturity and equity securities, and our international operations, including expected cash flows and potential acquisition and divestiture activity.

We estimate as of September 30, 2021, a 10% immediate unfavorable change in each of the foreign currency exchange rates to which we are exposed would result in no material change to the net fair value of our foreign currency-denominated instruments identified above because we effectively hedge foreign currency-denominated instruments to minimize exchange rate impacts, which is consistent with our estimate as of December 31, 2020. However, fluctuations in foreign currency exchange rates do affect the translation of segment pre-tax operating earnings and equity of our international operations into our consolidated financial statements.

For our Principal International segment, we estimate that a 10% immediate unfavorable change in each of the foreign currency exchange rates to which we were exposed would have resulted in a $307.4 million, or 10%, reduction in the total equity excluding noncontrolling interests of our international operations as of September 30, 2021, as compared to an estimated $323.0 million, or 10%, reduction as of December 31, 2020. We estimate a 10% unfavorable change in the average foreign currency exchange rates to which we were exposed through our international operations would have resulted in a $10.0 million, or 12%, reduction in segment pre-tax operating earnings of our international operations for the three months ended September 30, 2021, as compared to an estimated $7.6 million, or 13%, reduction for the three months ended September 30, 2020. In addition, we estimate that a 10% unfavorable change in the average foreign currency exchange rates to which we were exposed through our international operations would have resulted in a $26.0 million, or 13%, reduction in segment pre-tax operating earnings of our international operations for the nine months ended September 30, 2021, as compared to an estimated $28.1 million, or 12%, reduction for the nine months ended September 30, 2020.

The selection of a 10% immediate unfavorable change in all currency exchange rates should not be construed as a prediction by us of future market events, but rather as an illustration of the potential impact of such an event. These exposures will change as a result of a change in the size and mix of our foreign operations.

Use of Derivatives to Manage Foreign Currency Risk. The foreign currency risk on funding agreements and fixed maturities in our U.S. operations is mitigated by using currency swaps that swap the foreign currency interest and principal payments to our functional currency. The notional amount of our currency swap agreements associated with foreign-denominated liabilities was $0.0 million and $128.3 million as of September 30, 2021 and December 31, 2020, respectively. The notional amount of our currency swap agreements associated with foreign-denominated fixed maturities was $874.1 million and $679.2 million as of September 30, 2021 and December 31, 2020, respectively.

With regard to our international operations, in order to enhance the diversification of our investment portfolios we may invest in bonds denominated in a currency that is different than the currency of our liabilities. We use foreign exchange derivatives to economically hedge the currency mismatch. Our Principal International operations had currency swaps with a notional amount of $278.5 million and $238.0 million as of September 30, 2021 and December 31, 2020, respectively. Our Principal International operations also utilized currency forwards with a notional amount of $722.6 million and $814.3 million as of September 30, 2021 and December 31, 2020, respectively.

We use currency forwards to hedge certain net equity investments in our foreign operations, including certain sponsored investment funds. We held currency forwards with a notional amount of $284.1 million and $301.5 million as of September 30, 2021 and December 31, 2020, respectively. We use currency options to hedge currency risk associated with expected cash flows from our foreign operations. No currency options were utilized as of September 30, 2021 or December 31, 2020.

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Equity Risk

Equity risk is the risk we will incur economic losses due to adverse fluctuations in equity markets. As of September 30, 2021 and December 31, 2020, the fair value of our equity securities was $2,428.2 million and $2,013.4 million, respectively. We estimate a 10% decline in the prices of the equity securities would result in a decline in fair value of our equity securities of $242.8 million as of September 30, 2021, as compared to a decline in fair value of our equity securities of $201.3 million as of December 31, 2020.

We are also exposed to the risk that asset-based fees decrease as a result of declines in assets under management due to changes in investment prices and the risk that asset management fees calculated by reference to performance could be lower. The risk of decreased asset-based and asset management fees could also impact our estimates of total gross profits used as a basis for amortizing DAC and other actuarial balances. For further discussion, see Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Policies and Estimates — Deferred Acquisition Costs and Other Actuarial Balances” in our Annual Report on Form 10-K for the year ended December 31, 2020.

We also have equity risk associated with (1) fixed deferred annuity and universal life contracts that credit interest to customers based on changes in an external equity index; (2) variable annuity contracts that have a GMWB rider that allows the customer to make withdrawals of a specified annual amount, either for a fixed number of years or for the lifetime of the customer, even if the account value is reduced to zero; (3) variable annuity contracts that have a guaranteed minimum death benefit (“GMDB”) that allows the death benefit to be paid, even if the account value has fallen below the GMDB amount and (4) investment contracts in which the return is subject to minimum contractual guarantees. We are also subject to equity risk based upon the assets that support our employee benefit plans. For further discussion of equity risk associated with these plans, see Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Policies and Estimates — Benefit Plans” in our Annual Report on Form 10-K for the year ended December 31, 2020.

We estimate an immediate 10% decline in the S&P 500 index, followed by a 2% per quarter increase would reduce our annual segment pre-tax operating earnings by approximately 5% to 7% over the next 12 months. This estimate excludes the impact of any potential unlocking of our DAC asset and other actuarial balances. The selection of a 10% unfavorable change in the S&P 500 index should not be construed as a prediction by us of future market events, but rather as an illustration of the potential impact of such an event. Our exposure will change as a result of changes in our mix of business.

Separate and distinct from our equity risk associated with a decline in the S&P index, we also have equity risk associated with certain alternative investments. These investments are comprised of several asset categories (including hedge funds, private equity, infrastructure and direct lending) that provide an attractive asset match to our long-dated liabilities and create diversification benefits to our fixed income investments. The risk profile of these investments is actively monitored by our Investment Committee and our corporate risk management function. Changes in the value of these investments will impact earnings. We estimate an immediate 10% decline in the value of those assets, followed by a 2% per quarter increase would reduce our annual segment pre-tax operating earnings by less than 7%. This estimate excludes the impact of any potential unlocking of our DAC asset and other actuarial balances. The selection of a 10% unfavorable change in the value of those assets should not be construed as a prediction of future market events or correlation with changes in the S&P index, but rather as an illustration of the potential impact of such a decline in value of those assets. Furthermore, we have intentionally selected a decline in the value of alternative investments separate from a decline in the S&P 500 index because a decline in the S&P 500 index does not necessarily correlate to a comparable decline in the value of our alternative assets.

Use of Derivatives to Manage Equity Risk. We economically hedge the fixed deferred annuity and universal life products, where the interest credited is linked to an external equity index, by purchasing options that match the product’s profile or selling options to offset existing exposures. We economically hedged the GMWB exposure, which includes interest rate risk and equity risk, using futures, options, treasury forwards and interest rate swaps with notional amounts of $1,702.4 million, $1,609.6 million, $2,181.6 million, and $4,812.1 million, respectively, as of September 30, 2021, and notional amounts of $389.5 million, $1,249.6 million, $0.0 million, and $6,961.6 million, respectively, as of December 31, 2020. The fair value of both the GMWB embedded derivative and associated hedging instruments are sensitive to financial market conditions and the variance related to the change in fair value of these items for a given period is largely dependent on market conditions at the end of the period.

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Item 4. Controls and Procedures

Disclosure Controls and Procedures

In order to ensure that the information that we must disclose in our filings with the SEC is recorded, processed, summarized and reported on a timely basis, we have adopted disclosure controls and procedures. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports that we file with or submit to the SEC is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Our Chief Executive Officer, Daniel J. Houston, and our Chief Financial Officer, Deanna D. Strable-Soethout, have reviewed and evaluated our disclosure controls and procedures as of September 30, 2021, and have concluded our disclosure controls and procedures are effective.

Changes in Internal Control Over Financial Reporting

We had no change in our internal control over financial reporting during our last fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II — OTHER INFORMATION

Item 1. Legal Proceedings

Disclosure concerning legal proceedings can be found in Part I, Item 1. “Financial Statements, Notes to Unaudited Condensed Consolidated Financial Statements, Note 8, Contingencies, Guarantees and Indemnifications” under the caption, “Litigation and Regulatory Contingencies,” which is incorporated here by this reference.

Item 1A. Risk Factors

In addition to the other information set forth in this report, consideration should be given to the factors discussed in Part I, Item 1A. “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2020. If any of those factors were to occur, they could materially adversely affect our business, financial condition or future results, and could cause actual results to differ materially from those expressed in forward-looking statements in this report. We have not had material changes with respect to the risk factors discussed in our Annual Report on Form 10-K for the year ended December 31, 2020.

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Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Issuer Purchases of Equity Securities

The following table presents the amount of our common share purchase activity for the periods indicated.

					Maximum dollar
				Total number of	value of shares
				shares purchased	that may yet be
	Total number of	Average		as part of publicly	purchased under
	shares	price paid		announced	the programs (in
Period	purchased (1)	per share		programs	millions) (2)
January 1, 2021 — January 31, 2021	959,443	$	51.59	959,443	$	725.8
February 1, 2021 — February 28, 2021	937,138	$	52.58	907,436	$	678.3
March 1, 2021 — March 31, 2021	295,549	$	56.61	52,809	$	675.3
April 1, 2021 — April 30, 2021	1,340,837	$	62.34	1,338,813	$	591.9
May 1, 2021 — May 31, 2021	1,323,769	$	65.33	1,323,700	$	505.4
June 1, 2021 — June 30, 2021	1,496,869	$	64.14	1,492,703	$	1,609.6
July 1, 2021 — July 31, 2021	1,104,740	$	62.07	1,104,700	$	1,541.1
August 1, 2021 — August 31, 2021	1,062,174	$	65.24	1,056,600	$	1,472.2
September 1, 2021 — September 30, 2021	1,006,308	$	65.28	1,006,308	$	1,406.5
Total	9,526,827			9,242,512

(1) Includes the number of shares of common stock utilized to execute certain stock incentive awards and shares purchased as part of publicly announced programs.

(2) In February 2020, our Board authorized a share repurchase program of up to $900.0 million of our outstanding common stock, which has no expiration. In June 2021, our Board authorized a share repurchase program of up to $1.2 billion of our outstanding common stock, which has no expiration.

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Item 6. Exhibits

		Incorporated by reference herein
Exhibit Number	Description	Form	File Date
10.1	The Principal Financial Group, Inc. Executive Severance Plan, effective September 1, 2021
31.1	Certification of Daniel J. Houston
31.2	Certification of Deanna D. Strable-Soethout
32.1	Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code – Daniel J. Houston
32.2	Certification Pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code – Deanna D. Strable-Soethout
101	The following materials from Principal Financial Group, Inc.’s Quarterly Report on Form 10-Q for the period ended September 30, 2021 formatted in iXBRL (Inline eXtensible Business Reporting Language): (i) the Consolidated Statements of Financial Position, (ii) the Consolidated Statements of Operations, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Stockholders’ Equity, (v) the Consolidated Statements of Cash Flows and (vi) the Notes to Unaudited Consolidated Financial Statements.
104	The cover page from Principal Financial Group, Inc.’s Quarterly Report on Form 10-Q for the period ended September 30, 2021 formatted in iXBRL and contained in Exhibit 101.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	PRINCIPAL FINANCIAL GROUP, INC.
Dated: October 28, 2021	By	/s/ Deanna D. Strable-Soethout
		Deanna D. Strable-Soethout
		Executive Vice President and Chief Financial Officer
		Duly Authorized Officer, Principal Financial Officer, and Principal Accounting Officer

131

EX-10.1

Exhibit 10.1

The Principal Financial Group, Inc. Executive Severance Plan

Effective September 1, 2021

This document does not constitute an agreement by your employer to continue to maintain the Plan, or any provision of the Plan, and is not a guarantee of future benefits. The Plan may be amended or terminated at any time. This document is not an employment contract and does not change the nature of at-will employment. Employment may be terminated by you or your employer at any time and for any reason.

Section 1 – Purpose

The Principal Financial Group, Inc. Executive Severance Plan (“Plan”) has been established to provide severance payments to Eligible Employees in the event of a Qualifying Termination. To the extent the Plan provides deferred compensation, it is an unfunded Plan primarily for the purpose of providing deferred compensation for a select group of management or highly compensated employees.

Section 2 – Definitions

The definitions of the terms used in this Plan are set forth below.

Administrator means the Human Resources Committee of the Company’s Board of Directors or any committee or group of employees to which the Human Resources Committee of the Company’s Board of Directors delegates authority.

Affiliate means any corporation or other business entity that is a member of the same controlled group as, or under common control with, Company, as determined under Code section 414(b) or (c); provided, however, for purposes of this Plan, the term shall include entities outside the jurisdiction of the United States.

Annual Salary means income established by Employer as the person’s annual base compensation at the time of termination. Monetary recognition or awards (such as any bonuses or other incentives) are not included in determining annual base compensation.

Bonus means the cash component of any annual incentive bonus paid an Eligible Employee for a calendar year in which the Eligible Employee was in their current role and was continuously employed between January 1 through December 31. If at the time the Eligible Employee qualifies for Severance Pay they have not yet received a Bonus, for the purpose of this Plan their “Bonus” shall be the target associated with the cash component of the annual incentive bonus for their role.

Code means the Internal Revenue Code of 1986, as amended, and includes applicable Treasury regulations.

Company means Principal Financial Group, Inc. and any successors thereto.

Comparable Employment means any job determined by the Administrator or its designee to be Comparable Employment. The Administrator may consider any relevant factor in making this determination. In general, a position will constitute Comparable Employment if the total of unreduced Annual Salary, target annual incentive, and regularly awarded long-term incentive pay (if applicable) is no less than 80% of the Eligible Employee’s current total unreduced Annual Salary, target annual incentive, and regularly awarded long-term incentive pay (if applicable).

Disqualifying Event means an Eligible Employee has:

● accepted any offer of employment with Employer, an Affiliate, or a Successor Employer with such employment to commence prior to or promptly following termination of employment with Employer;

● declined an offer of Comparable Employment by Employer, an Affiliate, or a Successor Employer with such employment to commence promptly following termination by Employer;

● failed to sign a release of any and all claims against Company, Employer and their Affiliates (Release and Waiver), which restricts former employees from suing Company, Employer and their Affiliates, in the form provided by Employer;

● been terminated under the “Medical Leave Impacts on Employment” policy in the Employee Handbook; or

● been subject to a Termination for Cause.

Accepting a position with Company or an Affiliate as an Agent or Financial Representative shall not be considered a Disqualifying Event.

The forgoing list of Disqualifying Events is intended to be illustrative and may not be all-inclusive

Eligible Employee means an employee of an Affiliate of Company who has been designated part of the Executive Management Group (“EMG”) of the Company and/or has been appointed by the Company’s Board of Directors the title of

Senior Vice President or an equivalent title such that the Human Resources Committee of the Company’s Board of Directors determines the employee’s compensation.

The following are not Eligible Employees:

● an employee who is not or ceases to be an Eligible Employee as defined in the Plan;

● an employee whose employment with Employer terminates by reason of death, disability or Termination for Cause as determined by the Administrator;

● an employee whose employment terminates through retirement or resignation;

● an employee whose employment ends under any circumstances other than meeting the eligibility requirements of the Plan;

● an employee who has a written employment contract with Employer that provides for severance benefits or an agreement that provides that the person is not eligible for severance benefits under this Plan;

● a person who is performing services for Company or an Affiliate pursuant to an independent contractor agreement even if a third party determines the person should have been classified as an employee during the time the services were provided to Company or an Affiliate;

● an individual who is currently receiving benefits under an Employer-sponsored long-term disability policy;

● an employee on an indefinite unpaid leave of absence, except where required by law; or

● an employee who is eligible for severance under any other agreement with the Company or an Affiliate, including but not limited to a change of control agreement.

Employer means the legal entity that employs the Eligible Employee.

ERISA means the Employee Retirement Income Security Act of 1974, as amended, and includes applicable Department of Labor regulations.

Health Benefits Premiums means the health, dental, and vision benefits premiums paid by the Eligible Employee or on the Eligible Employee’s behalf at the time of the Eligible Employee’s termination of employment.

Plan means The Principal Financial Group, Inc. Executive Severance Plan, as established September 1, 2021, as amended from time to time.

Severance Pay means the benefit an Eligible Employee is qualified to receive under this Plan, as described in Section 3 – Severance Benefit.

Successor Employer means any entity that assumes operations or functions formerly carried out by Employer (including, but not limited to, the buyer of a facility, division or business operation, or any entity to which an Employer operation or function has been outsourced), any subsidiary, affiliate, or otherwise identifiable entity of Employer that is sold or otherwise transferred to an owner other than Employer, or any entity making a job offer at the request of Employer (including, but not limited to, a joint venture of which Employer or an Affiliate is a member).

Termination for Cause means termination of an Eligible Employee’s employment due to any of the following reasons: (a) willful neglect in the performance of the Eligible Employee’s duties for the Company or an Affiliate or repeated failure or refusal to perform such duties; (b) engagement in conduct in connection with the Eligible Employee’s employment with the Company or an Affiliate that results, or could reasonably be expected to result in, material harm to the business or reputation of the Company or an Affiliate; (c) conviction of, or plea of guilty or no contest to (x) any felony or (y) any other crime that results, or reasonably could be expected to result, in material harm to the business or reputation of the Company or an Affiliate; (d) material violation of the written policies of the Company or an Affiliate, including but not limited to those relating to sexual harassment or the disclosure or misuse of confidential information, or those set forth in the manuals or statements of policy of the Company or an Affiliate; (e) fraud or misappropriation, embezzlement or misuse of funds or property belonging to the Company or an Affiliate; (f) act of personal dishonesty that involves personal profit in connection with the Eligible Employee’s employment with the Company or an Affiliate; or (g) failure to comply in any respect with the

Foreign Corrupt Practices Act, the Securities Act of 1033, the Exchange Act, the Sarbanes-Oxley Act of 2002, the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, or the Truth in Negotiations Act, or any rules or regulations thereunder.

Notwithstanding the foregoing, clauses (a) – (b) and (d) shall not constitute “Cause” unless and until the Company or an Affiliate has: (x) provided the Eligible Employee, within sixty (60) days of the Company’s or Affiliate’s knowledge of the occurrence of the facts and circumstances underlying such Cause event, written notice stating with specificity the applicable facts and circumstances underlying such finding of Cause and (y) provided the Eligible Employee with an opportunity to cure the same (if curable) within thirty (30) days after the receipt of such notice.

Section 3 - Severance Benefit

Qualifying Termination. An Eligible Employee may be qualified for Severance Pay if he or she has not had a Disqualifying Event and:

● is terminated by, or receives and does not accept an offer for non-Comparable Employment from, Employer or an Affiliate due to a reduction in force, office closing, outsourcing or divestiture of a business; or

● has an involuntary, permanent reduction in work hours that results in a salary reduction that would not meet the definition of Comparable Employment.

If an Eligible Employee has an involuntary permanent reduction in work hours that results in non-Comparable employment, or receives an offer of non-Comparable Employment, the Eligible Employee has the choice of accepting the non-Comparable Employment or receiving Severance Pay.

Severance Pay. An Eligible Employee qualified for Severance Pay will receive, based on the Eligible Employee’s title, one lump sum severance payment calculated as follows:

Title	Severance Benefit
Chief Executive Office	● An amount equal to two times the Eligible Employee’s Annual Salary; plus ● An amount equal to two times the average amount of the Bonus paid the Eligible Employee for the last three years; plus ● An amount equal to two years of Health Benefits Premiums.
Members of the EMG, Other Than the Chief Executive Officer, Including Members of the EMG Who Are Senior Vice Presidents	● An amount equal to one and a half times the Eligible Employee’s Annual Salary; plus ● An amount equal to one and a half times the average amount of the Bonus paid the Eligible Employee for the last three years; plus ● An amount equal to one and a half years of Health Benefits Premiums.
Senior Vice Presidents and Employees with Equivalent Titles Who Are Not Members of the EMG	● An amount equal to the Eligible Employee’s Annual Salary; plus ● An amount equal to the average amount of the Bonus paid the Eligible Employee for the last three years; plus ● An amount equal to one year of Health Benefits premiums

If at the time an Eligible Employee qualifies for Severance Pay they have received less than three Bonuses, the bonus component of their Severance Pay shall be calculated by averaging the Bonuses they have received.

Time of Payment. Severance Pay generally will be paid on a regular payday within 30 days after the Eligible Employee signs the Release and Waiver and after the Release and Waiver may not be revoked. However, except as provided below in the section titled “Code Section 409A,” in no event shall any such payment be made later than March 15th of the calendar year following the calendar year in which the Eligible Employee experiences a Qualifying Termination entitling the Eligible Employee to such payment under this Plan.

Any payment an Eligible Employee receives pursuant to a federal, state, or local law relating to involuntary terminations, including but not limited to the Worker Adjustment and Retraining Notification Act, or pursuant to an agreement requiring notice of termination of employment, will be deducted from the Severance Pay.

Code Section 409A. The Plan is intended to be exempt from the requirement of Code Section 409A, under the involuntary pay plan or other exception and should be interpreted accordingly. However, to the extent that any amount payable under the Plan is subject to the requirements of Code section 409A, nothing in this Plan shall operate or be construed to cause the Plan to fail to comply with the requirements of Code Section 409A and, to the extent applicable, it is intended that the Plan comply with the provisions of Code Section 409A and shall be administered in a manner consistent with that intent.

To the extent this Plan is subject to Code Section 409A, any provision of this Plan that would cause the Plan or any payment made hereunder to fail to satisfy Code Section 409A shall have no force and effect until amended by the Company to comply with Code Section 409A (which amendment may be retroactive to the extent such retroactive amendment would not violate Code Section 409A) and may be made by the Company without the consent of any Eligible Employee. In no event whatsoever shall the Company or any Employer be liable for any additional tax, interest or penalty that may be imposed on an Eligible Employee by Code Section 409A or damages for failing to comply with Code Section 409A.

Notwithstanding anything in the Plan to the contrary, in no event will payment of any amount that is “nonqualified deferred compensation” within the meaning of Code Section 409A(d)(1) be made to an Eligible Employee who is a “specified employee” within the meaning of Code Section 409A(a)(2)(B)(i) and the regulations thereunder, prior to the date which is six (6) months after such Eligible Employee’s Separation from Service (as defined by Code section 409A). Upon expiration of the six-month delay period, all payments and benefits delayed pursuant to this provision shall be paid or reimbursed to the Eligible Employee in a lump sum without interest. To the extent that reimbursements or other in-kind benefits under this Plan constitute “nonqualified deferred compensation” under Code Section 409A, (a) all expenses or other reimbursements hereunder shall be made on or before the last day of the taxable year following the taxable year in which such expenses were

incurred by the participant, (b) any right to reimbursement or in-kind benefits shall not be subject to liquidation or exchange for another benefit, and (c) no such reimbursement, expenses eligible for reimbursement or in-kind benefits provided in any taxable year shall in any way affect the expenses eligible for reimbursement or in-kind benefits to be provided in any other taxable year.

Reemployment. An Eligible Employee may not receive both Severance Pay and salary from the Company or any Affiliate during the same period. Therefore, if an Eligible Employee is rehired by Employer or any Affiliate of Company during the period for which Severance Pay is received (for example, within 2 years post-termination for the Chief Executive Officer), they must repay the amount of Severance Pay for the period after the rehire date. This amount must be repaid within 90 days of the Company or an Affiliate requesting repayment. This paragraph shall not apply to an Eligible Employee who is re-hired as a Financial Representative.

Withholding. Employer shall deduct from Severance Pay any taxes required by law or regulation and will report all such amounts payable to such authority as required by applicable law or regulation.

Section 4 - Administration

Administrator. The Administrator has the following general powers and duties which are in addition to those the Plan otherwise gives to the Administrator:

● to construe and enforce the terms of the Plan, including ambiguous provisions, if any, and the rules and regulations the Administrator adopts, including interpretation of the Plan and any document related to the Plan’s operation;

● to determine eligibility for benefits, and to determine the type and extent of benefits, if any, to be provided;

● to determine all legal and factual questions that arise in the course of administering the Plan;

● to adopt rules of procedure and regulations necessary for the proper and efficient administration of the Plan, provided the rules are not inconsistent with the terms of the Plan, the Code, ERISA or other applicable law;

● to correct any defect or omission or reconcile any inconsistency in this Plan or any payment hereunder, and to make any other determinations that it believes necessary or advisable in the administration of the Plan;

● to review and render decisions regarding a claim for (or denial of a claim for) a benefit under the Plan; and

● to engage the service of agents whom the Administrator may deem advisable to assist it with the performance of its duties; to make any other determinations and undertake any other actions the Administrator believes are necessary or appropriate for the administration of the Plan; and

● to delegate its responsibilities under the Plan and to designate other persons to carry out any of its responsibilities with any such delegation in writing.

The Administrator shall furnish all notices and perform all filings, as required by law.

The Administrator shall have total and complete discretion to interpret and construe the Plan and to determine all questions arising in the administration, interpretation, and application of the Plan. Any determination the Administrator makes under the Plan is final and binding upon any affected person. In any action to review any such determination by the Administrator, the Administrator shall be deemed to have exercised its discretion properly unless it is duly proven that the Administrator has acted arbitrarily and capriciously.

Notification. The Administrator will notify Eligible Employees when and if they become eligible for Severance Pay under this Plan.

Claims Procedures. If an individual believes he or she is entitled to Severance Pay that was not provided, the individual (or the individual’s authorized representative) must file a formal written claim with the Administrator to pursue the matter further. The claim should explain what the claimant wants and why the claimant believes he or she is entitled to it and should include copies of any relevant documents (but there is no need to submit a copy of the Plan itself). The claim must be received by the Administrator within six (6) months of the date the claimant terminated employment with Employer.

The Administrator will ordinarily respond to the claim within 90 days after the date it is received. However, this period can be extended for an additional 90 days if the Administrator gives the claimant written notice of the extension, the reason why the extension is necessary, and the new date a decision is expected. The Administrator will provide the claimant with a written decision on the claim. If the claim is denied in whole or in part, the written decision will explain why, with specific reference to any relevant Plan provisions, and with a description of any additional material or information necessary to perfect the claim.

Appeal Procedures. If the initial claim is denied and the claimant wants to pursue the matter further, the claimant (or the claimant’s authorized representative) must, within 60 days after receipt of the denial letter, file a written appeal with the Administrator. The written appeal should describe all reasons why the claimant believes the claim denial was in error and should include copies of any documents the claimant wants the Administrator to consider in support of the appeal (other than the Plan document and the claim denial letter).

The claimant can obtain copies of all documents that the Administrator considered or relied on in deciding the claim. These copies will be provided free of charge. If the claimant requests copies, the 60-day period for filing the appeal will stop running until the Administrator has responded to the request. Once the Administrator has responded, the 60-day appeal period will begin running again, with whatever time remained at the time the documents were requested.

The Administrator will ordinarily decide the appeal no later than the date of the next meeting of the Administrator that follows receipt of the appeal. However, if the appeal is filed within 30 days before the next meeting, the Administrator will ordinarily decide the appeal no later than the date of the second meeting of the Administrator that follows receipt of the appeal. This period may be extended if the Administrator notifies the claimant of the extension, the reason why the extension is necessary, and the new date a decision is expected. If special circumstances require a further extension of time, a benefit determination will be rendered no later than the date of the third meeting of the Administrator following the Plan's receipt of the appeal. The Administrator will provide a written decision on the appeal as soon as possible, but not later than 5 days after the benefit determination is made. If the appeal is denied in whole or in part, the written decision will explain why, with specific reference to any relevant Plan provisions.

Civil Action Under ERISA. If the appeal is denied in whole or in part, and the claimant wants to pursue the matter further, the claimant has the right to file a lawsuit under section 502(a) of the Employee Retirement Income Security Act. Any such lawsuit must be filed no later than one (1) year after the date on the appeal denial letter. In addition, no lawsuit seeking benefits under the Plan can be brought more than two (2) years after the date the claimant terminated employment with Employer.

A claimant must first exhaust all rights to review, as described in the section of this Plan titled “Claims and Appeal Procedures,” before they may file a lawsuit related to this Plan. Any such lawsuit must be filed in the United States District Court for the Southern District of Iowa.

The claimant may obtain copies of all documents the Administrator considered or relied on in deciding the appeal. These copies will be provided free of charge. A request for copies will not, however, suspend or “toll” the period for filing a lawsuit.

Section 5 – Amendment and Termination

The Company’s Board of Directors, or its delegate documented in writing, reserves the right and authority to amend the Plan provisions from time to time. Amendments can include remedial retroactive changes (within the time specified by applicable laws and regulations) to comply with any law or regulation issued by any governmental agency to which the Plan is subject. The Company may correct obvious and unambiguous typographical errors and cross references that merely correct a reference but that do not in any way change the original intended meaning of the provisions.

The benefits provided under this Plan are not vested benefits. On or after the termination date of the Plan, no obligations for payment under the Plan will exist.

Section 6 – Miscellaneous

Right to Terminate Employment. A former Eligible Employee’s failure to qualify for Severance Pay under this Plan will not rescind or otherwise affect the Eligible Employee’s termination of employment from Employer, and such failure to qualify for Severance Pay will not establish any right:

● to a continuation or reinstatement of employment with Employer; or

● to receive any payment from Employer in lieu of Severance Pay.

Source of Benefits. All Severance Pay paid to a terminated Eligible Employee under this Plan will be paid from the general assets of Employer, and the status of an Eligible Employee’s claim to any Severance Pay will be the same as the status of a claim against Employer by any general and unsecured creditor. No person can look to, or have any claim against, any officer, director, employee, or agent of Employer as an individual, for payment of any benefits under this Plan.

No Assignment; Binding Effect. No Eligible Employee will have the right to alienate, assign, commute, or otherwise encumber benefits under this Plan for any purpose, and any attempt to do so will be disregarded completely as null and void. The provisions of this Plan will be binding on each Eligible Employee (and on each person who claims a benefit under any such Eligible Employee) and on Employer.

Construction. This Plan will be construed in accordance with the law of the state of Iowa to the extent not preempted by federal law. Headings and subheadings have been added for convenience of reference and will have no substantive effect whatsoever. All references to sections will be to sections in this Plan.

Usage. Whenever applicable, the masculine gender, when used in this Plan, will include all gender identities, and the singular will include the plural.

Drafting Errors. If, due to errors in drafting, any Plan provision does not accurately reflect its intended meaning, as demonstrated by consistent interpretations or other evidence of intent, or as determined by the Administrator in its sole and exclusive judgment, the provision shall be considered ambiguous and shall be interpreted by the Administrator in a fashion consistent with its intent, as determined in the sole and exclusive judgment of the Administrator. The Company shall ensure the Plan is amended retroactively to cure any such ambiguity.

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Daniel J. Houston, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Principal Financial Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 28, 2021

/s/ Daniel J. Houston

Daniel J. Houston

Chairman, President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Deanna D. Strable-Soethout, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Principal Financial Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: October 28, 2021

/s/ Deanna D. Strable-Soethout

Deanna D. Strable-Soethout

Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification Pursuant to Section 1350 of Chapter 63

of Title 18 of the United States Code

I, Daniel J. Houston, Chairman, President and Chief Executive Officer of Principal Financial Group, Inc., certify that (i) the Form 10-Q for the period ended September 30, 2021, fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 and (ii) the information contained in the Form 10-Q for the period ended September 30, 2021, fairly presents, in all material respects, the financial condition and results of operations of Principal Financial Group, Inc.

/s/ Daniel J. Houston

Daniel J. Houston

Chairman, President and Chief Executive Officer

Date: October 28, 2021

EX-32.2

Exhibit 32.2

Certification Pursuant to Section 1350 of Chapter 63

of Title 18 of the United States Code

I, Deanna D. Strable-Soethout, Executive Vice President and Chief Financial Officer of Principal Financial Group, Inc., certify that (i) the Form 10-Q for the period ended September 30, 2021, fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 and (ii) the information contained in the Form 10-Q for the period ended September 30, 2021, fairly presents, in all material respects, the financial condition and results of operations of Principal Financial Group, Inc.

/s/ Deanna D. Strable-Soethout

Deanna D. Strable-Soethout

Executive Vice President and Chief Financial Officer

Date: October 28, 2021

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Oct. 21, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	1-16725
Entity Registrant Name	PRINCIPAL FINANCIAL GROUP, INC
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	711 High Street
Entity Address, City or Town	Des Moines
Entity Address, State or Province	IA
Entity Address, Postal Zip Code	50392
Entity Tax Identification Number	42-1520346
City Area Code	515
Local Phone Number	247-5111
Title of 12(b) Security	Common Stock
Trading Symbol	PFG
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		265,069,422
Entity Central Index Key	0001126328
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false

XML

Condensed Consolidated Statements of Financial Position - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Assets
Fixed maturities, available-for-sale	$ 76,557.1	$ 78,710.3
Fixed maturities, trading	413.5	532.1
Equity securities (2021 and 2020 include $789.1 million and $902.5 million related to consolidated variable interest entities)	2,428.2	2,013.4
Mortgage loans (2021 and 2020 include $1,334.1 million and $319.0 million related to consolidated variable interest entities)	19,426.0	17,343.0
Real estate (2021 and 2020 include $653.3 million and $476.8 million related to consolidated variable interest entities)	1,965.6	1,797.3
Policy loans	762.1	784.0
Other investments (2021 and 2020 include $437.5 million and $348.5 million related to consolidated variable interest entities and $0.0 million and $28.5 million measured at fair value under the fair value option)	5,341.9	5,126.8
Total investments	106,894.4	106,306.9
Cash and cash equivalents (2021 and 2020 include $52.1 million and $28.8 million related to consolidated variable interest entities)	3,145.4	2,849.8
Accrued investment income	727.7	710.6
Premiums due and other receivables	1,713.2	1,723.8
Deferred acquisition costs	3,696.9	3,409.7
Property and equipment	1,065.4	1,019.0
Goodwill	1,648.4	1,711.0
Other intangibles	1,629.4	1,723.0
Separate account assets (2021 and 2020 include $34,420.2 million and $41,138.9 million related to consolidated variable interest entities)	177,850.5	175,951.4
Other assets	537.1	1,222.5
Total assets	298,908.4	296,627.7
Liabilities
Contractholder funds (2021 and 2020 include $350.7 million and $388.6 million related to consolidated variable interest entities)	43,828.9	43,237.7
Future policy benefits and claims	43,784.0	45,207.2
Other policyholder funds	1,063.8	1,059.4
Short-term debt	74.3	84.7
Long-term debt	4,279.7	4,279.2
Income taxes currently payable	8.2	22.3
Deferred income taxes	2,345.6	2,330.8
Separate account liabilities (2021 and 2020 include $34,420.2 million and $41,138.9 million related to consolidated variable interest entities)	177,850.5	175,951.4
Other liabilities (2021 and 2020 include $55.6 million and $24.5 million related to consolidated variable interest entities)	9,200.9	7,582.1
Total liabilities	282,435.9	279,754.8
Redeemable noncontrolling interest (2021 and 2020 include $309.7 million and $226.8 million related to consolidated variable interest entities)	343.3	255.6
Stockholders' equity
Common stock, par value $0.01 per share; 2,500.0 million shares authorized; 484.3 million and 481.9 million shares issued as of 2021 and 2020; 266.1 million and 273.3 million shares outstanding as of 2021 and 2020	4.8	4.8
Additional paid-in capital	10,436.5	10,321.6
Retained earnings	12,583.9	11,838.0
Accumulated other comprehensive income (loss)	1,619.2	2,383.1
Treasury stock, at cost (218.2 million and 208.6 million shares as of 2021 and 2020)	(8,573.7)	(7,988.6)
Total stockholders' equity attributable to Principal Financial Group, Inc.	16,070.7	16,558.9
Noncontrolling interest	58.5	58.4
Total stockholders' equity	16,129.2	16,617.3
Total liabilities and stockholders' equity	$ 298,908.4	$ 296,627.7

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Condensed Consolidated Statements of Financial Position (Parenthetical) - USD ($) shares in Millions, $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Equity securities	$ 2,428.2	$ 2,013.4
Mortgage loans	19,426.0	17,343.0
Real estate	1,965.6	1,797.3
Other investments	5,341.9	5,126.8
Cash and Cash Equivalents, at Carrying Value	3,145.4	2,849.8
Other investments measured at fair value under fair value option	0.0	28.5
Separate account assets	177,850.5	175,951.4
Contractholder funds	43,828.9	43,237.7
Separate account liabilities	177,850.5	175,951.4
Other liabilities	9,200.9	7,582.1
Redeemable noncontrolling interest	$ 343.3	$ 255.6
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	2,500.0	2,500.0
Common stock, issued (in shares)	484.3	481.9
Common stock, outstanding (in shares)	266.1	273.3
Treasury stock (in shares)	218.2	208.6
Aggregate consolidated variable interest entities
Equity securities	$ 789.1	$ 902.5
Mortgage loans	1,334.1	319.0
Real estate	653.3	476.8
Other investments	437.5	348.5
Cash and Cash Equivalents, at Carrying Value	52.1	28.8
Separate account assets	34,420.2	41,138.9
Contractholder funds	350.7	388.6
Separate account liabilities	34,420.2	41,138.9
Other liabilities	76.6	24.5
Redeemable noncontrolling interest	$ 309.7	$ 226.8

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Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Premiums and other considerations	$ 1,230.5	$ 1,184.3	$ 3,335.3	$ 4,628.4
Fees and other revenues	1,251.8	1,143.0	3,711.0	3,332.6
Net investment income (loss)	1,093.4	917.9	3,167.0	2,846.1
Net realized capital gains (losses)	(152.0)	65.5	(41.7)	169.5
Total revenues	3,423.7	3,310.7	10,171.6	10,976.6
Expenses
Benefits, claims and settlement expenses	1,770.9	1,839.8	4,958.4	6,299.8
Dividends to policyholders	28.2	29.9	75.3	90.2
Operating expenses	1,196.5	1,165.9	3,663.3	3,484.7
Total expenses	2,995.6	3,035.6	8,697.0	9,874.7
Income (loss) before income taxes	428.1	275.1	1,474.6	1,101.9
Income taxes (benefits)	63.8	39.2	222.4	164.9
Net income (loss)	364.3	235.9	1,252.2	937.0
Net income (loss) attributable to noncontrolling interest	4.4	(0.1)	13.4	13.8
Net income (loss) attributable to Principal Financial Group, Inc.	$ 359.9	$ 236.0	$ 1,238.8	$ 923.2
Earnings per common share
Basic earnings per common share (in dollars per share)	$ 1.34	$ 0.86	$ 4.58	$ 3.36
Diluted earnings per common share (in dollars per share)	$ 1.32	$ 0.85	$ 4.51	$ 3.34

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Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Condensed Consolidated Statements of Comprehensive Income
Net income (loss)	$ 364.3	$ 235.9	$ 1,252.2	$ 937.0
Other comprehensive income (loss), net:
Net unrealized gains (losses) on available-for-sale securities	(23.6)	226.7	(606.1)	852.8
Net unrealized gains (losses) on derivative instruments	20.7	(25.1)	32.4	7.1
Foreign currency translation adjustment	(193.3)	94.3	(214.1)	(183.6)
Net unrecognized postretirement benefit obligation	9.3	10.5	21.2	31.9
Other comprehensive income (loss)	(186.9)	306.4	(766.6)	708.2
Comprehensive income (loss)	177.4	542.3	485.6	1,645.2
Comprehensive income (loss) attributable to noncontrolling interest	2.1	9.9	10.7	12.8
Comprehensive income (loss) attributable to Principal Financial Group, Inc.	$ 175.3	$ 532.4	$ 474.9	$ 1,632.4

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Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions		Common stock	Additional paid-in capital	Retained earnings (accumulated deficit) Effects of implementation of accounting change	Retained earnings (accumulated deficit)	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interest	Effects of implementation of accounting change	Total
Balances (ASU 2016-13 - CECL) at Dec. 31, 2019				$ (8.4)					$ (8.4)
Balances at Dec. 31, 2019		$ 4.8	$ 10,182.6		$ 11,074.3	$ 1,037.9	$ (7,681.6)	$ 67.8		$ 14,685.8
Increase (decrease) in stockholders' equity
Common stock issued			34.6							34.6
Stock-based compensation			74.4		(6.9)					67.5
Treasury stock acquired, common							(232.0)			(232.0)
Dividends to common stockholders					(460.8)					(460.8)
Distributions to noncontrolling interest								(24.3)		(24.3)
Contributions from noncontrolling interest								4.7		4.7
Purchase of subsidiary shares from noncontrolling interest	[1]		(0.6)					(0.3)		(0.9)
Adjustments to redemption amount of redeemable noncontrolling interest			0.2							0.2
Net income (loss)	[1]				923.2			23.3		946.5
Other comprehensive income (loss)	[1]					709.2		(1.0)		708.2
Balances at Sep. 30, 2020		4.8	10,291.2		11,521.4	1,747.1	(7,913.6)	70.2		15,721.1
Balances at Jun. 30, 2020		4.8	10,259.6		11,441.4	1,450.7	(7,913.4)	67.9		15,311.0
Increase (decrease) in stockholders' equity
Common stock issued			11.5							11.5
Stock-based compensation			21.9		(2.3)					19.6
Treasury stock acquired, common							(0.2)			(0.2)
Dividends to common stockholders					(153.7)					(153.7)
Distributions to noncontrolling interest								(1.1)		(1.1)
Contributions from noncontrolling interest								1.0		1.0
Adjustments to redemption amount of redeemable noncontrolling interest			(1.8)					0.1		(1.7)
Net income (loss)	[1]				236.0			1.4		237.4
Other comprehensive income (loss)	[1]					296.4		0.9		297.3
Balances at Sep. 30, 2020		4.8	10,291.2		11,521.4	1,747.1	(7,913.6)	70.2		15,721.1
Balances at Dec. 31, 2020		4.8	10,321.6		11,838.0	2,383.1	(7,988.6)	58.4		16,617.3
Increase (decrease) in stockholders' equity
Common stock issued			57.3							57.3
Stock-based compensation			82.2		(7.3)			0.1		75.0
Treasury stock acquired, common							(585.1)			(585.1)
Dividends to common stockholders					(485.6)					(485.6)
Distributions to noncontrolling interest								(4.8)		(4.8)
Contributions from noncontrolling interest								5.4		5.4
Purchase of subsidiary shares from noncontrolling interest	[1]		(16.4)					(1.7)		(18.1)
Adjustments to redemption amount of redeemable noncontrolling interest			(8.2)					(0.4)		(8.6)
Net income (loss)	[1]				1,238.8			3.9		1,242.7
Other comprehensive income (loss)	[1]					(763.9)		(2.4)		(766.3)
Balances at Sep. 30, 2021		4.8	10,436.5		12,583.9	1,619.2	(8,573.7)	58.5		16,129.2
Balances at Jun. 30, 2021		4.8	10,399.7		12,395.0	1,803.8	(8,370.2)	58.4		16,291.5
Increase (decrease) in stockholders' equity
Common stock issued			14.4							14.4
Stock-based compensation			23.5		(2.8)			0.1		20.8
Treasury stock acquired, common							(203.5)			(203.5)
Dividends to common stockholders					(168.2)					(168.2)
Distributions to noncontrolling interest								(1.4)		(1.4)
Contributions from noncontrolling interest								1.6		1.6
Purchase of subsidiary shares from noncontrolling interest	[1]		(1.1)							(1.1)
Net income (loss)	[1]				359.9			1.7		361.6
Other comprehensive income (loss)	[1]					(184.6)		(1.9)		(186.5)
Balances at Sep. 30, 2021		$ 4.8	$ 10,436.5		$ 12,583.9	$ 1,619.2	$ (8,573.7)	$ 58.5		$ 16,129.2

[1] Excludes amounts attributable to redeemable noncontrolling interest. See Note 9, Stockholders’ Equity, for further details.

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Operating activities
Net cash provided by (used in) operating activities	$ 2,107.0	$ 3,110.4
Investing activities
Fixed maturities available-for-sale and equity securities with intent to hold: Purchases	(11,065.1)	(12,060.6)
Fixed maturities available-for-sale and equity securities with intent to hold: Sales	2,383.5	2,677.3
Fixed maturities available-for-sale and equity securities with intent to hold: Maturities	8,162.3	6,247.7
Mortgage loans acquired or originated	(4,277.1)	(2,281.7)
Mortgage loans sold or repaid	2,142.3	1,877.0
Real estate acquired	(187.8)	(177.1)
Real estate sold	43.5
Net (purchases) sales of property and equipment	(108.9)	(82.9)
Net change in other investments	40.0	160.4
Net cash provided by (used in) investing activities	(2,867.3)	(3,639.9)
Financing activities
Issuance of common stock	57.3	34.6
Acquisition of treasury stock	(585.1)	(232.0)
Payments for financing element derivatives	(27.6)	(22.2)
Purchase of subsidiary shares from noncontrolling interest	(24.2)	(0.9)
Dividends to common stockholders	(485.6)	(460.8)
Issuance of long-term debt		608.8
Principal repayments of long-term debt	(1.4)	(65.3)
Net proceeds from (repayments of) short-term borrowings	0.2	(12.3)
Investment contract deposits	7,341.8	7,798.7
Investment contract withdrawals	(6,566.4)	(6,520.3)
Net increase (decrease) in banking operation deposits	1,346.9	441.8
Other		0.2
Net cash provided by (used in) financing activities	1,055.9	1,570.3
Net increase (decrease) in cash and cash equivalents	295.6	1,040.8
Cash and cash equivalents at beginning of period	2,849.8	2,515.9
Cash and cash equivalents at end of period	3,145.4	3,556.7
Changes from re-designation of other postretirement employee benefits ("OPEB") plan assets to cover non-retiree benefits:
Increases in equity securities re-designated from funded status of OPEB plan	548.1
Increases in other investments re-designated from funded status of OPEB plan	117.5
Decrease in tax receivable re-designated from funded status of OPEB plan	(9.1)
Decrease in accumulated other comprehensive income ("AOCI") due to reclassifying excess assets out of funded status of OPEB plan	9.1
Decrease in other assets due to reclassifying excess assets out of funded status of OPEB plan	(665.6)
Assets received in kind from pension risk transfer transactions	$ 109.5	$ 1,062.4

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Nature of Operations and Significant Accounting Policies

9 Months Ended

Sep. 30, 2021

Nature of Operations and Significant Accounting Policies

Nature of Operations and Significant Accounting Policies

1. Nature of Operations and Significant Accounting Policies

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Principal Financial Group, Inc. (“PFG”) have been prepared in conformity with accounting principles generally accepted in the U.S. (“U.S. GAAP”) for interim financial statements and with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2021, are not necessarily indicative of the results that may be expected for the year ended December 31, 2021, especially when considering risks and uncertainties, including those associated with the novel coronavirus (“COVID-19”), that may impact our business, results of operations, financial condition and liquidity. Our use of estimates and assumptions affect amounts reported and disclosed and includes, but is not limited to, the fair value of investments in the absence of quoted market values, investment impairments and valuation allowances, the fair value of derivatives, deferred acquisition costs (“DAC”) and other actuarial balances, measurement of goodwill and intangible assets, the liability for future policy benefits and claims, the value of pension and other postretirement benefits and accounting for income taxes and the valuation of deferred tax assets. Our estimates and assumptions could change in the future as more information becomes known about the impact of COVID-19. Our results of operations and financial condition may also be impacted by other uncertainties including evolving regulatory, legislative and standard-setter accounting interpretations and guidance.

These interim unaudited condensed consolidated financial statements should be read in conjunction with our annual audited financial statements as of December 31, 2020, included in our Form 10-K for the year ended December 31, 2020, filed with the United States Securities and Exchange Commission (“SEC”). The accompanying condensed consolidated statement of financial position as of December 31, 2020, has been derived from the audited consolidated statement of financial position but does not include all of the information and footnotes required by U.S. GAAP for complete financial statements.

Consolidation

We have relationships with various special purpose entities and other legal entities that must be evaluated to determine if the entities meet the criteria of a variable interest entity (“VIE”) or a voting interest entity (“VOE”). This assessment is performed by reviewing contractual, ownership and other rights, including involvement of related parties, and requires use of judgment. First, we determine if we hold a variable interest in an entity by assessing if we have the right to receive expected losses and expected residual returns of the entity. If we hold a variable interest, then the entity is assessed to determine if it is a VIE. An entity is a VIE if the equity at risk is not sufficient to support its activities, if the equity holders lack a controlling financial interest or if the entity is structured with non-substantive voting rights. In addition to the previous criteria, if the entity is a limited partnership or similar entity, it is a VIE if the limited partners do not have the power to direct the entity’s most significant activities through substantive kick-out rights or participating rights. A VIE is evaluated to determine the primary beneficiary. The primary beneficiary of a VIE is the enterprise with (1) the power to direct the activities of a VIE that most significantly impact the entity’s economic performance and (2) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE. When we are the primary beneficiary, we are required to consolidate the entity in our financial statements. We reassess our involvement with VIEs on a quarterly basis. For further information about VIEs, refer to Note 2, Variable Interest Entities.

If an entity is not a VIE, it is considered a VOE. VOEs are generally consolidated if we own a greater than 50% voting interest. If we determine our involvement in an entity no longer meets the requirements for consolidation under either the VIE or VOE models, the entity is deconsolidated. Entities in which we have management influence over the operating and financing decisions but are not required to consolidate, other than investments accounted for at fair value under the fair value option, are reported using the equity method.

Recent Accounting Pronouncements

Description	Date of adoption	Effect on our consolidated financial statements or other significant matters
Standards not yet adopted:
Targeted improvements to the accounting for long-duration insurance contracts This authoritative guidance updates certain requirements in the accounting for long-duration insurance and annuity contracts. 1. The assumptions used to calculate the liability for future policy benefits on traditional and limited-payment contracts will be reviewed and updated periodically. Cash flow assumptions will be reviewed at least annually and updated when necessary with the impact recognized in net income. Discount rate assumptions are prescribed as the current upper-medium grade (low credit risk) fixed income instrument yield and will be updated quarterly with the impact recognized in other comprehensive income (“OCI”). 2. Market risk benefits, which are contracts or contract features that provide protection to the policyholder from capital market risk and expose us to other-than-nominal capital market risk, are measured at fair value. The periodic change in fair value is recognized in net income with the exception of the periodic change in fair value related to our own nonperformance risk, which is recognized in OCI. 3. DAC and other actuarial balances for all insurance and annuity contracts will be amortized on a constant basis over the expected term of the related contracts. 4. Additional disclosures are required, including disaggregated rollforwards of significant insurance liabilities and other account balances as well as disclosures about significant inputs, judgments, assumptions and methods used in measurement. The guidance for the liability for future policy benefits for traditional and limited-payment contracts and DAC will be applied on a modified retrospective basis; that is, to contracts in force as of the beginning of the earliest period presented based on their existing carrying amounts. An entity may elect to apply the changes retrospectively. The guidance for market risk benefits will be applied retrospectively. Early adoption is permitted.	January 1, 2023	Our implementation and evaluation process to date includes, but is not limited to the following: ● identifying and documenting contracts and contract features in scope of the guidance; ● identifying the actuarial models, systems and processes to be updated; ● evaluating and selecting our systems solutions for implementing the new guidance; ● building models and evaluating preliminary output as models are developed; ● evaluating and finalizing our key accounting policies; ● assessing the impact to our chart of accounts; ● developing format and content of new disclosures; ● conducting operational dry runs using model output and updated chart of accounts; ● evaluating transition requirements and impacts and ● establishing and documenting appropriate internal controls. As we progress through our implementation, we will be able to better assess the impact to our consolidated financial statements; however, we expect this guidance to significantly change how we account for many of our insurance and annuity products.

Description	Date of adoption	Effect on our consolidated financial statements or other significant matters
Standards adopted:
Simplifying the accounting for income taxes This authoritative guidance simplifies the accounting for income taxes by removing certain exceptions, including exceptions related to the incremental approach for intraperiod tax allocation, calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. Also, the guidance clarifies the accounting for franchise taxes, transactions that result in a step-up in the tax basis of goodwill and enacted changes in tax laws or rates. It specifies that an entity is not required to allocate the consolidated amount of current and deferred tax expense to a legal entity that is not subject to tax in its separate financial statements, although an entity may elect to do so. The guidance will be applied based on varying transition methods defined by amendment. Early adoption is permitted.	January 1, 2021	This guidance did not have a material impact on our consolidated financial statements.
Facilitation of the effects of reference rate reform on financial reporting This authoritative guidance provides optional expedients and exceptions for contracts and hedging relationships affected by reference rate reform. An entity may elect not to apply certain modification accounting requirements to contracts affected by reference rate reform and instead account for the modified contract as a continuation of the existing contract. Also, an entity may apply optional expedients to continue hedge accounting for hedging relationships in which the critical terms change due to reference rate reform. This guidance eases the financial reporting impacts of reference rate reform on contracts and hedging relationships and is effective until December 31, 2022.	March 12, 2020	We adopted the guidance upon issuance prospectively and elected the applicable optional expedients and exceptions for contracts and hedging relationships impacted by reference rate reform through December 31, 2022. The guidance did not have an impact on our consolidated financial statements upon adoption.
Goodwill impairment testing This authoritative guidance simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 (which measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill to the carrying amount of that goodwill) from the goodwill impairment test. A goodwill impairment loss will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary.	January 1, 2020	This guidance reduces complexity and costs associated with performing a Step 2 test, should one be needed in the future. This guidance did not have a material impact on our consolidated financial statements at adoption.

Description	Date of adoption	Effect on our consolidated financial statements or other significant matters
Credit losses This authoritative guidance requires entities to use a current expected credit loss (“CECL”) model to measure impairment for most financial assets that are not recorded at fair value through net income. Under the CECL model, an entity will estimate lifetime expected credit losses considering available relevant information about historical events, current conditions and reasonable and supportable forecasts. The CECL model does not apply to available-for-sale debt securities; however, the credit loss calculation and subsequent recoveries for available-for-sale securities are required to be recorded through an allowance. This guidance also expands the required credit loss disclosures.	January 1, 2020	We adopted the guidance using the modified retrospective approach. A cumulative effect adjustment of $8.4 million was recorded as a decrease to retained earnings. We recorded an offsetting increase in the allowance for credit loss for mortgage loans, reinsurance recoverables and commitments and a decrease for deferred tax impacts. See Note 3, Investments, for further details.

When we adopt new accounting standards, we have a process in place to perform a thorough review of the pronouncement, identify the financial statement and system impacts and create an implementation plan among our impacted business units to ensure we are compliant with the pronouncement on the date of adoption. This includes having effective processes and controls in place to support the reported amounts. Each of the standards listed above is in varying stages in our implementation process based on its issuance and adoption dates. We are on track to implement guidance by the respective effective dates.

Investments

Loan modifications related to COVID-19

Our commercial and residential mortgage loan portfolios can include loans that have been modified. We assess loan modifications on a case-by-case basis to evaluate whether a troubled debt restructuring (“TDR”) has occurred. In response to COVID-19, the Coronavirus Aid, Relief and Economic Security Act, which was subsequently amended by the Consolidated Appropriations Act, 2021, (collectively the “CARES Act”) provides a temporary suspension of TDR accounting for certain COVID-19 related loan modifications where the loan was not more than 30 days past due as of December 31, 2019. We elected the TDR relief in the CARES Act beginning in the second quarter of 2020. The CARES Act TDR relief does not apply to modifications completed subsequent to the earlier of 60 days after the national emergency related to COVID-19 ends, or January 1, 2022. In addition, the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (As Revised on April 7, 2020) (“Interagency Statement”) provides additional guidance to determine if a short-term COVID-19 related loan modification is a TDR. We consider the CARES Act and the Interagency Statement when assessing loan modifications to determine whether a TDR has occurred. See Note 3, Investments, under the caption “Mortgage Loan Modifications” for further details.

Derivatives

Overview

Derivatives are financial instruments whose values are derived from interest rates, foreign exchange rates, financial indices or the values of securities. Derivatives generally used by us include swaps, options, futures and forwards. Derivative positions are either assets or liabilities in the consolidated statements of financial position and are measured at fair value, generally by obtaining quoted market prices or through the use of pricing models. See Note 10, Fair Value Measurements, for policies related to the determination of fair value. Fair values can be affected by changes in interest rates, foreign exchange rates, financial indices, values of securities, credit spreads, and market volatility and liquidity.

Accounting and Financial Statement Presentation

We designate derivatives as either:

(a) a hedge of the exposure to changes in the fair value of a recognized asset or liability or an unrecognized firm commitment, including those denominated in a foreign currency (“fair value hedge”);

(b) a hedge of a forecasted transaction or the exposure to variability of cash flows to be received or paid related to a recognized asset or liability, including those denominated in a foreign currency (“cash flow hedge”);

(c) a hedge of a net investment in a foreign operation or

(d) a derivative not designated as a hedging instrument.

Our accounting for the ongoing changes in fair value of a derivative depends on the intended use of the derivative and the designation, as described above, and is determined when the derivative contract is entered into or at the time of redesignation. Hedge accounting is used for derivatives that are specifically designated in advance as hedges and that reduce our exposure to an indicated risk by having a high correlation between changes in the value of the derivatives and the items being hedged at both the inception of the hedge and throughout the hedge period. Cash flows associated with derivatives are included within operating and financing activities in the consolidated statements of cash flows.

Fair Value Hedges. When a derivative is designated as a fair value hedge and is determined to be highly effective, changes in its fair value, along with changes in the fair value of the hedged asset, liability or firm commitment attributable to the hedged risk, are reported in the same consolidated statements of operations line item that is used to report the earnings effect of the hedged item. For fair value hedges of fixed maturities, available-for-sale, these changes in fair value are reported in net investment income. A fair value hedge determined to be highly effective may still result in a mismatch between the change in the fair value of the hedging instrument and the change in the fair value of the hedged item attributable to the hedged risk. Certain fair value hedges use the last-of-layer method to hedge a designated amount (the "last layer") within a closed portfolio of prepayable assets that is expected to remain outstanding for the length of the hedging relationship and is not expected to be impacted by prepayments, defaults or other factors that affect the timing and amount of cash flows. Prepayment risk is excluded when measuring the change in fair value attributable to the hedged risk under the last-of-layer method.

Cash Flow Hedges. When a derivative is designated as a cash flow hedge and is determined to be highly effective, changes in its fair value are recorded as a component of OCI. At the time the variability of cash flows being hedged impacts net income, the related portion of deferred gains or losses on the derivative instrument is reclassified and reported in net income.

Net Investment in a Foreign Operation Hedge. When a derivative is used as a hedge of a net investment in a foreign operation, its change in fair value, to the extent effective as a hedge, is recorded as a component of OCI. If the foreign operation is sold or upon complete or substantially complete liquidation, the deferred gains or losses on the derivative instrument are reclassified into net income.

Non-Hedge Derivatives. If a derivative does not qualify or is not designated for hedge accounting, all changes in fair value are reported in net income without considering the changes in the fair value of the economically associated assets or liabilities.

Hedge Documentation and Effectiveness Testing. At inception, we formally document all relationships between hedging instruments and hedged items, as well as our risk management objective and strategy for undertaking various hedge transactions. This process includes associating all derivatives designated as fair value or cash flow hedges with specific assets or liabilities on the consolidated statements of financial position or with specific firm commitments or forecasted transactions. Documentation of fair value hedges that use the last-of-layer method supports the expectation that the hedged last layer amount is anticipated to be outstanding at the end of the hedging relationship and includes expectations of prepayments, defaults or other factors that affect the timing and amount of cash flows. Effectiveness of the hedge is formally assessed at inception and throughout the life of the hedging relationship. Even if a hedge is determined to be highly effective, the hedge may still result in a mismatch between the change in the fair value of the hedging instrument and the change in the fair value of the hedged item attributable to the hedged risk.

We use qualitative and quantitative methods to assess hedge effectiveness. Qualitative methods may include monitoring changes to terms and conditions and counterparty credit ratings. Quantitative methods may include statistical tests including regression analysis and minimum variance and dollar offset techniques. For last-of-layer method hedges, the assessment of hedge effectiveness includes confirming we expect the hedged last layer amount to be outstanding at the end of the hedging relationship.

Termination of Hedge Accounting. We prospectively discontinue hedge accounting when (1) the criteria to qualify for hedge accounting is no longer met, e.g., a derivative is determined to no longer be highly effective in offsetting the change in fair value or cash flows of a hedged item; (2) the derivative expires, is sold, terminated or exercised or (3) we remove the designation of the derivative being the hedging instrument for a fair value or cash flow hedge.

If it is determined that a derivative no longer qualifies as an effective hedge, the derivative will continue to be carried on the consolidated statements of financial position at its fair value, with changes in fair value recognized prospectively in net realized capital gains (losses). The asset or liability under a fair value hedge will no longer be adjusted for changes in fair value pursuant to hedging rules and the existing basis adjustment is amortized to the consolidated statements of operations line associated with the asset or liability. If a last-of-layer method hedging relationship is discontinued, the outstanding basis adjustment is allocated to the individual assets in the closed portfolio and those amounts are amortized consistent with the amortization of other discounts or premiums associated with those assets.

The component of AOCI related to discontinued cash flow hedges that are no longer highly effective is amortized to the consolidated statements of operations consistent with the net income impacts of the original hedged cash flows. If a cash flow hedge is discontinued because it is probable the hedged forecasted transaction will not occur, the deferred gain or loss is immediately reclassified from AOCI into net income.

Embedded Derivatives. We purchase and issue certain financial instruments and products that contain a derivative that is embedded in the financial instrument or product. We assess whether this embedded derivative is clearly and closely related to the asset or liability that serves as its host contract. If we deem that the embedded derivative's terms are not clearly and closely related to the host contract, and a separate instrument with the same terms would qualify as a derivative instrument, the derivative is bifurcated from that contract and held at fair value on the consolidated statements of financial position, with changes in fair value reported in net income.

Separate Accounts

The separate accounts are legally segregated and are not subject to the claims that arise out of any of our other business. The client, rather than us, directs the investments and bears the investment risk of these funds. The separate account assets represent the fair value of funds that are separately administered by us for contracts with equity, real estate and fixed income investments and are presented as a summary total within the consolidated statements of financial position. An equivalent amount is reported as separate account liabilities, which represent the obligation to return the monies to the client. We receive fees for mortality, withdrawal and expense risks, as well as administrative, maintenance and investment advisory services that are included in the consolidated statements of operations. Net deposits, net investment income and realized and unrealized capital gains and losses of the separate accounts are not reflected in the consolidated statements of operations.

Separate account assets and separate account liabilities include certain international retirement accumulation products where the segregated funds and associated obligation to the client are consolidated within our financial statements. We have determined that summary totals are the most meaningful presentation for these funds.

As of September 30, 2021 and December 31, 2020, the separate accounts included a separate account valued at $94.5 million and $80.4 million, respectively, which primarily included shares of our stock that were allocated and issued to eligible participants of qualified employee benefit plans administered by us as part of the policy credits issued under our 2001 demutualization. These shares are included in both basic and diluted earnings per share calculations. In the consolidated statements of financial position, the separate account shares are recorded at fair value and are reported as separate account assets with a corresponding separate account liability. Changes in fair value of the separate account shares are reflected in both the separate account assets and separate account liabilities and do not impact our results of operations.

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Variable Interest Entities

9 Months Ended

Sep. 30, 2021

Variable Interest Entities

Variable Interest Entities

2. Variable Interest Entities

We have relationships with various types of entities which may be VIEs. Certain VIEs are consolidated in our financial results. See Note 1, Nature of Operations and Significant Accounting Policies, under the caption “Consolidation” for further details of our consolidation accounting policies. We did not provide financial or other support to investees designated as VIEs for the periods ended September 30, 2021 and December 31, 2020.

Consolidated Variable Interest Entities

Mandatory Retirement Savings Funds

We hold an equity interest in Chilean mandatory privatized social security funds in which we provide asset management services. We determined the mandatory privatized social security funds, which also include contributions for voluntary pension savings, voluntary non-pension savings and compensation savings accounts, are VIEs. This is because the equity holders as a group lack the power, due to voting rights or similar rights, to direct the activities of the entity that most significantly impact the entity's economic performance and also because equity investors are protected from below-average market investment returns relative to the industry’s return, due to a regulatory guarantee that we provide. Further we concluded we are the primary beneficiary through our power to make decisions and our significant variable interest in the funds. The purpose of the funds, which reside in legally segregated entities, is to provide long-term retirement savings. The obligation to the customer is directly related to the assets held in the funds and, as such, we present the assets as separate account assets and the obligation as separate account liabilities within our consolidated statements of financial position.

Principal International Hong Kong offers retirement pension schemes in which we provide trustee, administration and asset management services to employers and employees under the Hong Kong Mandatory Provident Fund and Occupational Retirement Schemes Ordinance pension schemes. Each pension scheme has various guaranteed and non-guaranteed constituent funds, or investment options, in which customers can invest their money. The guaranteed funds provide either a guaranteed rate of return to the customer or a minimum guarantee on withdrawals under certain qualifying events. We determined the guaranteed funds are VIEs due to the fact the equity holders, as a group, lack the obligation to absorb expected losses due to the guarantee we provide. We concluded we are the primary beneficiary because we have the power to make decisions and to receive benefits and the obligation to absorb losses that could be potentially significant to the VIE. Therefore, we consolidate the underlying assets and liabilities of the funds and present as separate accounts or within the general account, depending on the terms of the guarantee.

Real Estate

We invest in several real estate limited partnerships and limited liability companies. The entities invest in real estate properties. Certain of these entities are VIEs based on the combination of our significant economic interest and related voting rights. We determined we are the primary beneficiary as a result of our power to control the entities through our significant ownership. Due to the nature of these real estate investments, the investment balance will fluctuate as we purchase and sell interests in the entities and as capital expenditures are made to improve the underlying real estate.

Sponsored Investment Funds

We sponsor and invest in certain investment funds for which we provide asset management services. Although our asset management fee is commensurate with the services provided and consistent with fees for similar services negotiated at arms-length, we have a variable interest for funds where our other interests are more than insignificant. The funds are VIEs as the equity holders lack power through voting rights to direct the activities of the entity that most significantly impact its economic performance. We determined we are the primary beneficiary of the VIEs where our interest in the entity is more than insignificant and we are the asset manager.

Residential Mortgage Loans

We invest in ABS trusts. The trusts issue various collateralized mortgage obligation certificates and purchase residential mortgage loans. The trusts are considered VIEs due to insufficient equity to sustain themselves. We concluded we are the primary beneficiary as we purchase substantially all of the certificates and have the obligation to absorb losses that could potentially be significant to the VIEs.

Assets and Liabilities of Consolidated Variable Interest Entities

The carrying amounts of our consolidated VIE assets, which can only be used to settle obligations of consolidated VIEs, and liabilities of consolidated VIEs for which creditors do not have recourse were as follows:

	September 30, 2021				December 31, 2020
	Total		Total		Total		Total
	assets		liabilities		assets		liabilities
	(in millions)
Mandatory retirement savings funds (1)	$	35,161.0	$	34,771.0	$	41,995.2	$	41,527.9
Real estate (2)		691.0		42.8		499.0		21.3
Sponsored investment funds (3)		525.9		13.3		419.5		3.2
Residential mortgage loans (4)		1,337.5		21.0		319.8		—
Total	$	37,715.4	$	34,848.1	$	43,233.5	$	41,552.4

(1) The assets of the mandatory retirement savings funds primarily include separate account assets and equity securities. The liabilities primarily include separate account liabilities and contractholder funds.

(2) The assets of the real estate VIEs primarily include real estate and cash. Liabilities primarily include other liabilities.

(3) The assets of sponsored investment funds are primarily fixed maturities and equity securities, certain of which are reported with other investments, and cash. The consolidated statements of financial position included a $309.7 million and $226.8 million redeemable noncontrolling interest for sponsored investment funds as of September 30, 2021 and December 31, 2020, respectively.

(4) The assets of the residential mortgage loans VIEs primarily include residential mortgage loans. The liabilities include other liabilities as of September 30, 2021. Prior to 2021, the liabilities were eliminated in our consolidated results.

Unconsolidated Variable Interest Entities

We hold a variable interest in a number of VIEs where we are not the primary beneficiary. Our investments in these VIEs are reported in fixed maturities, available-for-sale; fixed maturities, trading; equity securities and other investments in the consolidated statements of financial position and are described below.

Unconsolidated VIEs include certain commercial mortgage-backed securities (“CMBS”), residential mortgage-backed pass-through securities (“RMBS”) and other asset-backed securities (“ABS”). All of these entities were deemed VIEs because the equity within these entities is insufficient to sustain them. We determined we are not the primary beneficiary in the entities within these categories of investments. This determination was based primarily on the fact we do not own the class of security that controls the unilateral right to replace the special servicer or equivalent function.

We invest in cash collateralized debt obligations, collateralized bond obligations, collateralized loan obligations and other collateralized structures, which are VIEs due to insufficient equity to sustain the entities. We have determined we are not the primary beneficiary of these entities primarily because we do not control the economic performance of the entities and were not involved with the design of the entities or because we do not have a potentially significant variable interest in the entities for which we are the asset manager.

We have invested in various VIE trusts and similar entities as a debt holder. Most of these entities are classified as VIEs due to insufficient equity to sustain them. In addition, we have an entity classified as a VIE based on the combination of our significant economic interest and lack of voting rights. We have determined we are not the primary beneficiary primarily because we do not control the economic performance of the entities and were not involved with the design of the entities.

We have invested in partnerships and other funds, which are classified as VIEs. The entities are VIEs as equity holders lack the power to control the most significant activities of the entities because the equity holders do not have either the ability by a simple majority to exercise substantive kick-out rights or substantive participating rights. We have determined we are not the primary beneficiary because we do not have the power to direct the most significant activities of the entities.

As previously discussed, we sponsor and invest in certain investment funds that are VIEs. We determined we are not the primary beneficiary of the VIEs for which we are the asset manager but do not have a potentially significant variable interest in the funds.

We hold an equity interest in Mexican mandatory privatized social security funds in which we provide asset management services. Our equity interest in the funds is considered a variable interest. We concluded the funds are VIEs because the equity holders as a group lack decision-making ability through their voting rights. We are not the primary beneficiary of the VIEs because although we, as the asset manager, have the power to direct the activities of the VIEs, we do not have a potentially significant variable interest in the funds.

The carrying value and maximum loss exposure for our unconsolidated VIEs were as follows:

			Maximum exposure to
	Asset carrying value		loss (1)
	(in millions)
September 30, 2021
Fixed maturities, available-for-sale:
Corporate	$	294.3	$	286.0
Residential mortgage-backed pass-through securities		2,882.6		2,816.2
Commercial mortgage-backed securities		5,283.2		5,086.5
Collateralized debt obligations (2)		3,566.3		3,569.6
Other debt obligations		7,080.5		6,942.3
Fixed maturities, trading:
Residential mortgage-backed pass-through securities		133.3		133.3
Commercial mortgage-backed securities		26.3		26.3
Collateralized debt obligations (2)		10.9		10.9
Other debt obligations		8.5		8.5
Equity securities		123.5		123.5
Other investments:
Other limited partnership and fund interests (3)		1,159.6		1,996.0
December 31, 2020
Fixed maturities, available-for-sale:
Corporate	$	296.9	$	285.7
Residential mortgage-backed pass-through securities		2,986.8		2,857.6
Commercial mortgage-backed securities		4,942.3		4,741.2
Collateralized debt obligations (2)		4,027.5		4,045.9
Other debt obligations		7,045.9		6,832.6
Fixed maturities, trading:
Residential mortgage-backed pass-through securities		190.5		190.5
Commercial mortgage-backed securities		27.1		27.1
Collateralized debt obligations (2)		20.6		20.6
Other debt obligations		9.4		9.4
Equity securities		121.7		121.7
Other investments:
Other limited partnership and fund interests (3)		999.1		1,739.0

(1) Our risk of loss is limited to our initial investment measured at amortized cost for fixed maturities, available-for-sale. Our risk of loss is limited to our investment measured at fair value for our fixed maturities, trading and equity securities. Our risk of loss is limited to our carrying value plus any unfunded commitments and/or guarantees and similar provisions for our other investments. A carrying value of zero is used if distributions have been received in excess of our investment, resulting in a negative carrying value for the investment. Unfunded commitments are not liabilities on our consolidated statements of financial position because we are only required to fund additional equity when called upon to do so by the general partner or investment manager.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

(3) As of September 30, 2021 and December 31, 2020, the maximum exposure to loss for other limited partnership and fund interests includes $133.2 million and $141.2 million, respectively, of debt within certain of our managed international real estate funds that is fully secured by assets whose value exceeds the amount of the debt, but also includes recourse to the investment manager.

Money Market Funds

We are the investment manager for certain money market mutual funds. These types of funds are exempt from assessment under any consolidation model due to a scope exception for money market funds registered under Rule 2a-7 of the Investment Company Act of 1940 or similar funds. As of September 30, 2021 and December 31, 2020, money market mutual funds we manage held $5.1 billion and $4.4 billion in total assets, respectively. We have no contractual obligation to contribute to these funds; however, we provide support through the waiver of fees and through expense reimbursements. The amount of fees waived and expenses reimbursed was insignificant.

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Investments

9 Months Ended

Sep. 30, 2021

Investments

Investments

3. Investments

Fixed Maturities and Equity Securities

Fixed maturities include bonds, ABS, redeemable preferred stock and certain non-redeemable preferred securities. Equity securities include mutual funds, common stock, non-redeemable preferred stock and required regulatory investments. We classify fixed maturities as either available-for-sale or trading at the time of the purchase and, accordingly, carry them at fair value. Equity securities are also carried at fair value. See Note 10, Fair Value Measurements, for methodologies related to the determination of fair value. Unrealized gains and losses related to fixed maturities, available-for-sale, excluding those in fair value hedging relationships, are reflected in stockholders’ equity, net of adjustments associated with DAC and related actuarial balances, derivatives in cash flow hedge relationships and applicable income taxes. Mark-to-market adjustments on equity securities and mark-to-market adjustments on certain fixed maturities, trading are reflected in net realized capital gains (losses). Unrealized gains and losses related to hedged portions of fixed maturities, available-for-sale in fair value hedging relationships are reflected in net investment income. Mark-to-market adjustments related to certain securities carried at fair value with an investment objective to realize economic value through mark-to-market changes are reflected in net investment income.

The amortized cost of fixed maturities includes cost adjusted for amortization of premiums and discounts, computed using the interest method. The amortized cost of fixed maturities, available-for-sale is adjusted for changes in fair value of the hedged portions of securities in fair value hedging relationships and excludes accrued interest receivable. Accrued interest receivable is reported in accrued investment income on the consolidated statements of financial position. Fixed maturities, available-for-sale are subject to an allowance for credit loss and changes in the allowance are reported in net income as a component of net realized capital gains (losses). Interest income, as well as prepayment fees and the amortization of the related premium or discount, is reported in net investment income. For loan-backed and structured securities, we recognize income using a constant effective yield based on currently anticipated cash flows.

The amortized cost, gross unrealized gains and losses, allowance for credit loss and fair value of fixed maturities, available-for-sale were as follows:

			Gross		Gross		Allowance
	Amortized		unrealized		unrealized		for credit
	cost (1)		gains		losses		loss		Fair value
	(in millions)
September 30, 2021
Fixed maturities, available-for-sale:
U.S. government and agencies	$	1,821.7	$	140.6	$	40.5	$	—	$	1,921.8
Non-U.S. governments		906.3		139.3		0.8		—		1,044.8
States and political subdivisions		8,255.6		1,004.3		26.9		—		9,233.0
Corporate		41,412.9		4,350.9		203.0		15.9		45,544.9
Residential mortgage-backed pass-through securities		2,816.2		82.8		16.4		—		2,882.6
Commercial mortgage-backed securities		5,086.5		219.2		22.2		0.3		5,283.2
Collateralized debt obligations (2)		3,569.6		7.3		10.6		—		3,566.3
Other debt obligations		6,942.3		162.1		23.8		0.1		7,080.5
Total fixed maturities, available-for-sale	$	70,811.1	$	6,106.5	$	344.2	$	16.3	$	76,557.1

			Gross		Gross		Allowance
	Amortized		unrealized		unrealized		for credit
	cost (1)		gains		losses		loss		Fair value
		(in millions)
December 31, 2020
Fixed maturities, available-for-sale:
U.S. government and agencies	$	1,893.1	$	228.9	$	10.5	$	—	$	2,111.5
Non-U.S. governments		881.6		192.1		—		—		1,073.7
States and political subdivisions		8,004.9		1,175.5		12.6		—		9,167.8
Corporate		41,289.9		6,160.9		95.1		0.9		47,354.8
Residential mortgage-backed pass-through securities		2,857.6		129.4		0.2		—		2,986.8
Commercial mortgage-backed securities		4,741.2		241.3		35.9		4.3		4,942.3
Collateralized debt obligations (2)		4,045.9		8.7		24.9		2.2		4,027.5
Other debt obligations		6,832.6		243.2		29.9		—		7,045.9
Total fixed maturities, available-for-sale	$	70,546.8	$	8,380.0	$	209.1	$	7.4	$	78,710.3

(1) Amortized cost excludes accrued interest receivable of $570.1 million and $552.5 million as of September 30, 2021 and December 31, 2020, respectively.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

The amortized cost and fair value of fixed maturities, available-for-sale as of September 30, 2021, by expected maturity, were as follows:

	Amortized cost		Fair value
	(in millions)
Due in one year or less	$	2,216.3	$	2,245.6
Due after one year through five years		10,723.2		11,323.9
Due after five years through ten years		14,142.4		15,275.6
Due after ten years		25,314.6		28,899.4
Subtotal		52,396.5		57,744.5
Mortgage-backed and other asset-backed securities		18,414.6		18,812.6
Total	$	70,811.1	$	76,557.1

Actual maturities may differ because borrowers may have the right to call or prepay obligations. Our portfolio is diversified by industry, issuer and asset class. Credit concentrations are managed to established limits.

Net Realized Capital Gains and Losses

Net realized capital gains and losses on sales of investments are determined on the basis of specific identification. In general, in addition to realized capital gains and losses on investment sales and periodic settlements on derivatives not designated as hedges, we report gains and losses related to the following in net realized capital gains (losses) on the consolidated statements of operations: mark-to-market adjustments on certain equity securities, mark-to-market adjustments on certain fixed maturities, trading, mark-to-market adjustments on sponsored investment funds, mark-to-market adjustments on derivatives not designated as hedges, cash flow hedge gains (losses) when the hedged item impacts realized capital gains (losses), changes in the valuation allowance for fixed maturities available-for-sale and certain financing receivables, impairments of real estate held for investment and impairments on equity method investments. Investment gains and losses on sales of certain real estate held for sale due to investment strategy and mark-to-market adjustments on certain securities carried at fair value with an investment objective to realize economic value through mark-to-market changes are reported as net investment income and are excluded from net realized capital gains (losses). The major components of net realized capital gains (losses) on investments were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Fixed maturities, available-for-sale:
Gross gains	$	13.0	$	22.3	$	61.2	$	128.6
Gross losses		(0.9)		(12.8)		(29.0)		(38.6)
Net credit losses		(9.6)		(9.1)		(27.4)		(25.3)
Hedging, net (1)		—		(0.2)		(1.0)		(9.8)
Fixed maturities, trading (2)		(4.0)		(1.5)		(28.7)		7.2
Equity securities (3)		31.2		52.8		85.5		28.4
Mortgage loans		2.6		(0.3)		14.2		(15.3)
Derivatives (1)		(173.7)		(42.5)		(153.9)		52.3
Other		(10.6)		56.8		37.4		42.0
Net realized capital gains (losses)	$	(152.0)	$	65.5	$	(41.7)	$	169.5

(1) The change in fair value of fixed maturities, available-for-sale and the change in fair value of derivative hedging instruments in fair value hedging relationships are reported in net investment income with the earnings effect of fixed maturities, available-for-sale. Gains (losses) for fixed maturities, available-for-sale related to terminated cash flow hedges continue to be reflected in net realized capital gains (losses).

(2) Unrealized gains (losses) on fixed maturities, trading still held at the reporting date were $(4.1) million and $(1.5) million for the three months ended September 30, 2021 and 2020, respectively, and $(27.6) million and $8.7 million for the nine months ended September 30, 2021 and 2020, respectively.

(3) Unrealized gains (losses) on equity securities still held at the reporting date were $21.5 million and $48.0 million for the three months ended September 30, 2021 and 2020, respectively, and $54.0 million and $30.0 million for the nine months ended September 30, 2021 and 2020, respectively. This excludes $3.7 million and $2.7 million for the three months ended September 30, 2021 and 2020, respectively, and $9.6 million and $13.2 million for the nine months ended September 30, 2021 and 2020, respectively, of unrealized gains on equity securities still held at the reporting date that were reported in net investment income.

Proceeds from sales of investments (excluding call and maturity proceeds) in fixed maturities, available-for-sale were $273.6 million and $628.6 million for the three months ended September 30, 2021 and 2020, and $1,870.7 million and $2,176.2 million for the nine months ended September 30, 2021 and 2020, respectively.

Allowance for Credit Loss

We have a process in place to identify fixed maturity securities that could potentially require an allowance for credit loss. This process involves monitoring market events that could impact issuers’ credit ratings, business climate, management changes, litigation and government actions and other similar factors. This process also involves monitoring late payments, pricing levels, downgrades by rating agencies, key financial ratios, financial statements, revenue forecasts and cash flow projections as indicators of credit issues.

Each reporting period, all securities in an unrealized loss position are reviewed to determine whether a decline in value is due to credit. Relevant facts and circumstances considered include: (1) the extent the fair value is below cost; (2) the reasons for the decline in value; (3) the financial position and access to capital of the issuer, including the current and future impact of any specific events and (4) for structured securities, the adequacy of the expected cash flows. To the extent we determine an unrealized loss is due to credit, an allowance for credit loss is recognized through a reduction to net income.

We estimate the amount of the allowance for credit loss as the difference between amortized cost and the present value of the expected cash flows of the security. The present value is determined using the best estimate cash flows discounted at the effective interest rate implicit to the security at the date of purchase or the current yield to accrete an asset-backed or floating rate security. The methodology and assumptions for establishing the best estimate cash flows vary depending on the type of security. The ABS cash flow estimates are based on security specific facts and circumstances that may include collateral characteristics, expectations of delinquency and default rates, loss severity and prepayment speeds and structural support, including subordination and guarantees. The corporate security cash flow estimates are derived from scenario-based outcomes of expected corporate restructurings or liquidations using bond specific facts and circumstances including timing, security interests and loss severity. We do not measure a credit loss allowance on accrued interest receivable because we write off the accrued interest receivable balance to net investment income in a timely manner when we have concern regarding collectability.

Amounts on fixed maturities, available-for-sale deemed to be uncollectible are written off and removed from the allowance for credit loss. A write-off may also occur if we intend to sell a security or whether it is more likely than not we will be required to sell the security before the recovery of its amortized cost which, in some cases, may extend to maturity.

A rollforward of the allowance for credit loss by major security type was as follows.

	For the three months ended September 30, 2021
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance	$	—	$	—	$	—	$	8.5	$	—	$	0.2	$	—	$	—	$	8.7
Additions for credit losses not previously recorded		—		—		—		7.8		—		0.1		—		0.1		8.0
Foreign currency translation adjustment		—		—		—		(0.4)		—		—		—		—		(0.4)
Ending balance	$	—	$	—	$	—	$	15.9	$	—	$	0.3	$	—	$	0.1	$	16.3

	For the three months ended September 30, 2020
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance	$	—	$	—	$	—	$	2.8	$	—	$	3.4	$	1.0	$	—	$	7.2
Additions for credit losses not previously recorded		—		—		—		3.4		—		1.2		—		—		4.6
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		—		—		—		—		—		1.0		0.9		—		1.9
Write-offs charged against allowance		—		—		—		—		—		(1.6)		—		—		(1.6)
Ending balance	$	—	$	—	$	—	$	6.2	$	—	$	4.0	$	1.9	$	—	$	12.1

	For the nine months ended September 30, 2021
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance	$	—	$	—	$	—	$	0.9	$	—	$	4.3	$	2.2	$	—	$	7.4
Additions for credit losses not previously recorded		—		—		—		15.4		—		0.4		—		0.1		15.9
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		—		—		—		—		—		2.4		0.4		—		2.8
Write-offs charged against allowance		—		—		—		—		—		(6.8)		(2.6)		—		(9.4)
Foreign currency translation adjustment		—		—		—		(0.4)		—		—		—		—		(0.4)
Ending balance	$	—	$	—	$	—	$	15.9	$	—	$	0.3	$	—	$	0.1	$	16.3
Accrued interest written off to net investment income	$	—	$	—	$	—	$	0.2	$	—	$	—	$	—	$	—	$	0.2

	For the nine months ended September 30, 2020
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance (2)	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Additions for credit losses not previously recorded		—		—		—		13.2		—		2.9		0.1		0.1		16.3
Reductions for securities sold during the period		—		—		—		(7.0)		—		—		—		—		(7.0)
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		—		—		—		—		—		2.7		1.8		(0.1)		4.4
Write-offs charged against allowance		—		—		—		—		—		(1.6)		—		—		(1.6)
Ending balance	$	—	$	—	$	—	$	6.2	$	—	$	4.0	$	1.9	$	—	$	12.1

(1) Primarily consists of collateralized loan obligations backed by secured corporate loans.

(2) The allowance for credit loss associated with fixed maturities, available-for-sale was applied prospectively upon adoption of authoritative guidance effective January 1, 2020.

We did not write off any accrued interest to net investment income during the three months ended September 30, 2021 or during 2020.

Available-for-Sale Securities in Unrealized Loss Positions Without an Allowance for Credit Loss

For available-for-sale securities with unrealized losses for which an allowance for credit loss has not been recorded, the gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position were as follows:

	September 30, 2021
	Less than				Greater than or
	twelve months				equal to twelve months				Total
			Gross				Gross				Gross
	Fair		unrealized		Fair		unrealized		Fair		unrealized
	value		losses		value		losses		value		losses
	(in millions)
Fixed maturities, available-for-sale (1):
U.S. government and agencies	$	400.1	$	14.9	$	150.8	$	25.7	$	550.9	$	40.6
Non-U.S. governments		47.7		0.8		—		—		47.7		0.8
States and political subdivisions		632.3		10.9		245.1		15.9		877.4		26.8
Corporate		4,287.4		141.3		448.6		48.6		4,736.0		189.9
Residential mortgage-backed pass-through securities		1,229.4		15.9		21.8		0.6		1,251.2		16.5
Commercial mortgage-backed securities		480.6		4.9		321.6		14.1		802.2		19.0
Collateralized debt obligations (2)		1,235.9		2.9		461.3		7.7		1,697.2		10.6
Other debt obligations		2,334.4		17.3		177.4		6.5		2,511.8		23.8
Total fixed maturities, available-for-sale	$	10,647.8	$	208.9	$	1,826.6	$	119.1	$	12,474.4	$	328.0

(1) Fair value and gross unrealized losses are excluded for available-for-sale securities for which an allowance for credit loss has been recorded.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

Of the total amounts, Principal Life Insurance Company’s (“Principal Life”) consolidated portfolio represented $10,793.0 million in available-for-sale fixed maturities with gross unrealized losses of $231.9 million. Of the available-for-sale fixed maturities within Principal Life’s consolidated portfolio in a gross unrealized loss position, 91% were investment grade (rated AAA through BBB-) with an average price of 98 (carrying value/amortized cost) as of September 30, 2021. Gross unrealized losses in our fixed maturities portfolio increased during the nine months ended September 30, 2021, primarily due to an increase in interest rates, partially offset by tightening of credit spreads.

For those securities that had been in a continuous unrealized loss position for less than twelve months, Principal Life's consolidated portfolio held 1,400 securities with a carrying value of $9,056.8 million and unrealized losses of $136.9 million reflecting an average price of 99 as of September 30, 2021. Of this portfolio, 91% was investment grade (rated AAA through BBB-) as of September 30, 2021, with associated unrealized losses of $124.8 million. The unrealized losses on these securities can primarily be attributed to changes in market interest rates and changes in credit spreads since the securities were acquired.

For those securities that had been in a continuous unrealized loss position greater than or equal to twelve months, Principal Life’s consolidated portfolio held 280 securities with a carrying value of $1,736.2 million and unrealized losses of $95.0 million as of September 30, 2021. The average credit rating of this portfolio was AA- with an average price of 95 as of September 30, 2021. Of the $95.0 million in unrealized losses, the corporate sector accounts for $25.5 million in unrealized losses with an average price of 94 and an average credit rating of BBB-. Furthermore, unrealized losses include $13.8 million within the commercial mortgage-backed security sector with an average of price of 96 and an average credit rating of AAA and $7.7 million within the collateralized debt obligation sector with an average price of 98 and an average credit rating of AA+. The unrealized losses on these securities can primarily be attributed to changes in market interest rates and changes in credit spreads since the securities were acquired.

Because we expected to recover our amortized cost, we did not record an allowance for credit loss on these securities as of September 30, 2021. Because it was not our intent to sell the fixed maturity available-for-sale securities with unrealized losses and it was not more likely than not that we would be required to sell these securities before recovery of the amortized cost, which may be at maturity, we did not write down these investments to fair value.

	December 31, 2020
	Less than				Greater than or
	twelve months				equal to twelve months				Total
			Gross				Gross				Gross
	Fair		unrealized		Fair		unrealized		Fair		unrealized
	value		losses		value		losses		value		losses
	(in millions)
Fixed maturities, available-for-sale (1):
U.S. government and agencies	$	351.1	$	10.4	$	—	$	—	$	351.1	$	10.4
States and political subdivisions		363.5		12.5		—		—		363.5		12.5
Corporate		1,578.7		54.4		267.9		40.6		1,846.6		95.0
Residential mortgage-backed pass-through securities		92.3		0.2		1.6		—		93.9		0.2
Commercial mortgage-backed securities		970.9		22.1		137.4		12.2		1,108.3		34.3
Collateralized debt obligations (2)		1,750.6		11.1		931.1		12.9		2,681.7		24.0
Other debt obligations		802.3		28.1		61.1		1.7		863.4		29.8
Total fixed maturities, available-for-sale	$	5,909.4	$	138.8	$	1,399.1	$	67.4	$	7,308.5	$	206.2

(1) Fair value and gross unrealized losses are excluded for available-for-sale securities for which an allowance for credit loss has been recorded.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

Of the total amounts, Principal Life’s consolidated portfolio represented $7,029.6 million in available-for-sale fixed maturities with gross unrealized losses of $173.9 million. Of the available-for-sale fixed maturities within Principal Life’s consolidated portfolio in a gross unrealized loss position, 89% were investment grade (rated AAA through BBB-) with an average price of 98 (carrying value/amortized cost) as of December 31, 2020. Gross unrealized losses in our fixed maturities portfolio increased during the year ended December 31, 2020, primarily due to widening of credit spreads, partially offset by a decrease in interest rates.

For those securities that had been in a continuous unrealized loss position for less than twelve months, Principal Life’s consolidated portfolio held 619 securities with a carrying value of $5,638.3 million and unrealized losses of $122.4 million reflecting an average price of 98 as of December 31, 2020. Of this portfolio, 89% was investment grade (rated AAA through BBB-) as of December 31, 2020, with associated unrealized losses of $98.4 million. The unrealized losses on these securities can primarily be attributed to changes in market interest rates and changes in credit spreads since the securities were acquired.

For those securities that had been in a continuous unrealized loss position greater than or equal to twelve months, Principal Life’s consolidated portfolio held 198 securities with a carrying value of $1,391.3 million and unrealized losses of $51.5 million as of December 31, 2020. The average credit rating of this portfolio was AA- with an average price of 96 as of December 31, 2020. Of the $51.5 million in unrealized losses, the corporate sector accounts for $24.9 million in unrealized losses with an average price of 92 and an average credit rating of BB+. Furthermore, unrealized losses include $12.9 million within the collateralized debt obligation sector with an average price of 99 and an average credit rating of AA+ and $11.9 million within commercial mortgage-backed security sector with an average of price of 92 and an average credit rating of AA+. The unrealized losses on these securities can primarily be attributed to changes in market interest rates and changes in credit spreads since the securities were acquired.

Because we expected to recover our amortized cost, we did not record an allowance for credit loss on these securities as of December 31, 2020. Because it was not our intent to sell the fixed maturity available-for-sale securities with unrealized losses and it was not more likely than not that we would be required to sell these securities before recovery of the amortized cost, which may be at maturity, we did not write down these investments to fair value.

Net Unrealized Gains and Losses on Available-for-Sale Securities and Derivative Instruments

The net unrealized gains and losses on investments in available-for-sale securities and the net unrealized gains and losses on derivative instruments in cash flow hedge relationships are reported as separate components of stockholders’ equity. The cumulative amount of net unrealized gains and losses on available-for-sale securities and derivative instruments in cash flow hedge relationships net of adjustments related to DAC and related actuarial balances, policyholder liabilities, noncontrolling interest and applicable income taxes was as follows:

	September 30, 2021		December 31, 2020
	(in millions)
Net unrealized gains on fixed maturities, available-for-sale (1)	$	5,749.7	$	8,193.0
Net unrealized gains on derivative instruments		79.6		38.9
Adjustments for assumed changes in amortization patterns		(316.5)		(437.3)
Adjustments for assumed changes in policyholder liabilities		(1,029.2)		(2,603.9)
Net unrealized gains on other investments and noncontrolling interest adjustments		55.9		78.0
Provision for deferred income taxes		(956.7)		(1,112.2)
Net unrealized gains on available-for-sale securities and derivative instruments	$	3,582.8	$	4,156.5

(1) Excludes net unrealized gains (losses) on fixed maturities, available-for-sale included in fair value hedging relationships.

Financing Receivables

Mortgage Loans

Mortgage loans consist of commercial and residential mortgage loans. Our commercial mortgage loan portfolio consists primarily of non-recourse, fixed rate mortgages on stabilized properties. Our residential mortgage loan portfolio is composed of first lien and home equity mortgages concentrated in Chile and the United States.

Commercial and residential mortgage loans are generally reported at cost adjusted for amortization of premiums and accrual of discounts, computed using the interest method and net of valuation allowances. Amortized cost excludes accrued interest receivable. Interest income is accrued on the principal amount of the loan based on the loan’s contractual interest rate. Interest income, as well as prepayment of fees and the amortization of the related premium or discount, is reported in net investment income on the consolidated statements of operations. Accrued interest receivable is reported in accrued investment income on the consolidated statements of financial position. Any changes in the loan valuation allowances are reported in net realized capital gains (losses) on the consolidated statements of operations. Further details relating to our valuation allowance are included under the caption “Financing Receivables Valuation Allowance.”

Direct Financing Leases

Our direct financing leases are concentrated in Chile. Our Chilean operations enter into private placement contracts for commercial, industrial and office space properties whereby our Chilean operations purchase the real estate and/or building from the seller-lessee but then lease the property back to the seller-lessee. Ownership of the property is transferred to the lessee by the end of the lease term. Direct financing leases are reported as a component of other investments in the consolidated statements of financial position.

Reinsurance Recoverables

Our reinsurance recoverables include amounts due from reinsurers for paid or unpaid claims, claims incurred but not reported or policy benefits. We cede life, disability, medical and long-term care insurance to other insurance companies through reinsurance. Reinsurance recoverables are reported with premiums due and other receivables in the consolidated statements of financial position.

Credit Quality Information for Financing Receivables

The amortized cost of our financing receivables by credit risk and vintage was as follows:

	As of September 30, 2021
	2021		2020		2019		2018		2017		Prior		Total
		(in millions)
Commercial mortgage loans:
A- and above	$	1,852.4	$	1,812.6	$	2,447.0	$	2,411.6	$	1,623.0	$	4,504.4	$	14,651.0
BBB+ thru BBB-		233.1		296.9		294.0		160.5		183.3		384.8		1,552.6
BB+ thru BB-		23.8		5.4		—		—		—		56.1		85.3
B+ and below		—		—		—		9.0		—		34.7		43.7
Total	$	2,109.3	$	2,114.9	$	2,741.0	$	2,581.1	$	1,806.3	$	4,980.0	$	16,332.6
Direct financing leases:
A- and above	$	—	$	44.1	$	1.4	$	40.3	$	17.1	$	255.0	$	357.9
BBB+ thru BBB-		25.1		59.4		22.7		18.3		16.0		53.1		194.6
BB+ thru BB-		51.6		13.8		1.9		—		—		2.1		69.4
B+ and below		1.5		—		—		—		—		—		1.5
Total	$	78.2	$	117.3	$	26.0	$	58.6	$	33.1	$	310.2	$	623.4
Residential mortgage loans:
Performing	$	1,665.2	$	585.2	$	181.5	$	101.5	$	117.5	$	470.3	$	3,121.2
Non-performing		0.7		1.8		1.3		0.6		0.8		4.0		9.2
Total	$	1,665.9	$	587.0	$	182.8	$	102.1	$	118.3	$	474.3	$	3,130.4
Reinsurance recoverables													$	1,122.7

	As of December 31, 2020
	2020		2019		2018		2017		2016		Prior		Total
	(in millions)
Commercial mortgage loans:
A- and above	$	1,807.6	$	2,486.8	$	2,464.7	$	1,780.8	$	1,417.8	$	3,697.0	$	13,654.7
BBB+ thru BBB-		149.1		194.1		352.5		262.7		75.8		499.7		1,533.9
BB+ thru BB-		23.7		69.0		—		—		9.1		43.9		145.7
B+ and below		39.4		20.0		—		5.8		6.6		35.5		107.3
Total	$	2,019.8	$	2,769.9	$	2,817.2	$	2,049.3	$	1,509.3	$	4,276.1	$	15,441.6
Direct financing leases:
A- and above	$	43.9	$	1.6	$	42.6	$	19.2	$	15.3	$	202.9	$	325.5
BBB+ thru BBB-		94.9		5.5		11.3		18.4		3.0		35.5		168.6
BB+ thru BB-		13.3		—		—		—		—		1.9		15.2
B+ and below		57.6		22.5		11.9		—		1.0		108.5		201.5
Total	$	209.7	$	29.6	$	65.8	$	37.6	$	19.3	$	348.8	$	710.8
Residential mortgage loans:
Performing	$	699.1	$	336.7	$	167.0	$	165.1	$	167.6	$	398.7	$	1,934.2
Non-performing		—		2.0		0.8		1.4		0.4		12.7		17.3
Total	$	699.1	$	338.7	$	167.8	$	166.5	$	168.0	$	411.4	$	1,951.5
Reinsurance recoverables													$	1,098.0

The amortized cost of commercial mortgage loans, direct financing leases and residential mortgage loans excluded accrued interest receivable of $59.3 million, $1.1 million and $16.5 million, respectively, as of September 30, 2021. The amortized cost of commercial mortgage loans, direct financing leases and residential mortgage loans excluded accrued interest receivable of $60.0 million, $0.5 million and $2.0 million, respectively, as of December 31, 2020.

Financing Receivables Credit Monitoring

Commercial Mortgage Loan Credit Risk Profile Based on Internal Rating

We actively monitor and manage our commercial mortgage loan and direct financing lease portfolios. All commercial mortgage loans and direct financing leases are analyzed regularly and substantially all are internally rated, based on a proprietary risk rating cash flow model, in order to monitor the financial quality of these assets. The models stress expected cash flows at various levels and at different points in time depending on the durability of the income stream, which includes our assessment of factors such as location (macro and micro markets), tenant quality and lease expirations. Our internal rating analysis presents expected losses in terms of an S&P Global (“S&P”) bond equivalent rating for domestic commercial mortgage loans and Feller rate equivalent for Chilean commercial mortgage loans and direct financing leases. As the credit risk for commercial mortgage loans and direct financing leases increases, we adjust our internal ratings downward with loans in the category “B+ and below” having the highest risk for credit loss. Internal ratings on commercial mortgage loans and direct financing leases are updated at least annually and potentially more often for certain investments with material changes in collateral value or occupancy and for investments on an internal “watch list”.

Commercial mortgage loans and direct financing leases that require more frequent and detailed attention are identified and placed on an internal “watch list”. Among the criteria that may indicate a potential problem are significant negative changes in ratios of loan to value or contract rents to debt service, major tenant vacancies or bankruptcies, borrower sponsorship problems, late payments, delinquent taxes and loan relief/restructuring requests.

Residential Mortgage Loan Credit Risk Profile Based on Performance Status

Our residential mortgage loan portfolio is monitored based on performance of the loans. Monitoring on a residential mortgage loan increases when the loan is delinquent or earlier if there is an indication of potential impairment. We define non-performing domestic residential mortgage loans as loans 90 days or greater delinquent or on non-accrual status. We define non-performing residential first lien mortgages in the Chilean market as loans that have missed a specified number of coupon payments based on the nature of the loans and collection practices in that market.

Non-Accrual Financing Receivables

Financing receivables are placed on non-accrual status if we have concern regarding the collectability of future payments or if a financing receivable has matured without being paid off or extended. Factors considered may include conversations with the borrower, loss of major tenant, bankruptcy of borrower or major tenant, decreased property cash flow for commercial mortgage loans and direct financing leases or number of days past due and other circumstances for residential mortgage loans. Based on an assessment as to the collectability of the principal, a determination is made to apply any payments received either against the principal, against the valuation allowance or according to the contractual terms. When a financing receivable is placed on non-accrual status, the accrued unpaid interest receivable is reversed against interest income. Accrual of interest resumes after factors resulting in doubts about collectability have improved. Financing receivables in the Chilean market are carried on accrual for a longer period of delinquency than domestic financing receivables, as assessment of collectability is based on the nature of the financing receivables and collection practices in that market.

The amortized cost of financing receivables on non-accrual status was as follows:

		September 30, 2021
					Amortized cost
	Beginning		Ending		of nonaccrual
	amortized cost		amortized cost		assets without
	on nonaccrual		on nonaccrual		a valuation
	status		status		allowance
		(in millions)
Commercial mortgage loans	$	10.7	$	4.6	$	—
Residential mortgage loans		10.8		6.2		0.7
Total	$	21.5	$	10.8	$	0.7

	December 31, 2020
					Amortized cost
	Beginning		Ending		of nonaccrual
	amortized cost		amortized cost		assets without
	on nonaccrual		on nonaccrual		a valuation
	status		status		allowance
		(in millions)
Commercial mortgage loans	$	5.0	$	10.7	$	—
Residential mortgage loans		6.8		10.8		0.7
Total	$	11.8	$	21.5	$	0.7

No interest income was recognized on non-accrual financing receivables during 2021 and 2020.

The aging of our financing receivables, based on amortized cost, was as follows:

	September 30, 2021
													Amortized
													cost
					90 days or								90 days or
	30-59 days		60-89 days		more past		Total past						more and
	past due		past due		due		due		Current		Total (1)		accruing
	(in millions)
Commercial mortgage loans	$	5.3	$	0.1	$	7.3	$	12.7	$	16,319.9	$	16,332.6	$	2.7
Direct financing leases		—		—		3.6		3.6		619.8		623.4		3.6
Residential mortgage loans		34.8		7.4		7.4		49.6		3,080.8		3,130.4		3.0
Total	$	40.1	$	7.5	$	18.3	$	65.9	$	20,020.5	$	20,086.4	$	9.3

	December 31, 2020
													Amortized
													cost
					90 days or								90 days or
	30-59 days		60-89 days		more past		Total past						more and
	past due		past due		due		due		Current		Total (1)		accruing
	(in millions)
Commercial mortgage loans	$	42.1	$	9.2	$	12.0	$	63.3	$	15,378.3	$	15,441.6	$	1.3
Direct financing leases		—		3.2		—		3.2		707.6		710.8		—
Residential mortgage loans		66.6		8.8		10.9		86.3		1,865.2		1,951.5		6.5
Total	$	108.7	$	21.2	$	22.9	$	152.8	$	17,951.1	$	18,103.9	$	7.8

(1) As of both September 30, 2021 and December 31, 2020, no reinsurance recoverables were considered past due.

Financing Receivables Valuation Allowance

We establish a valuation allowance to provide for the risk of credit losses inherent in our financing receivables. The valuation allowance is maintained at a level believed adequate by management to absorb estimated expected credit losses. The valuation allowance is based on amortized cost excluding accrued interest receivable and includes reserves for pools of financing receivables with similar risk characteristics. We do not measure a credit loss allowance on accrued interest receivable because we write off the uncollectible accrued interest receivable balance to net investment income in a timely manner, generally within 90 days domestically or, in the Chilean market, based on the nature of the loans and collection practices in that market. During 2021 and 2020, we did not write off any commercial mortgage loan accrued interest receivable or residential mortgage loan accrued interest receivable.

For commercial and residential mortgage loans and direct financing leases, management’s periodic evaluation and assessment of the valuation allowance adequacy is based on known and inherent risks in the portfolio, adverse situations that may affect a borrower's ability to repay, the estimated value of the underlying collateral, composition of the portfolio, portfolio delinquency information, underwriting standards, peer group information, current and forecasted economic conditions, loss experience and other relevant factors. For reinsurance recoverables, management’s periodic evaluation and assessment of the valuation allowance adequacy is based on known and inherent risks, adverse situations that may affect a reinsurer’s ability to repay, current and forecasted economic conditions, industry loss experience and other relevant factors.

Our commercial mortgage loans and direct financing leases are pooled by risk rating level with an estimated loss ratio applied against each risk rating level. The loss ratio is generally based upon historical loss experience for each risk rating level as adjusted for certain current and forecasted environmental factors management believes to be relevant. Environmental factors are forecasted for two years or less with immediate reversion to historical experience. The allowance for direct financing leases is also adjusted for the residual value of the leased assets. A commercial mortgage loan or direct financing lease is evaluated individually if it does not continue to share similar risk characteristics of a pool. We analyze the need for an individual evaluation for any domestic commercial mortgage loan that is delinquent for 60 days or more, in process of foreclosure, restructured, on the internal “watch list” or that currently is evaluated individually. We analyze the need for an individual evaluation for any Chilean commercial mortgage loan or direct financing lease that is considered past due based on collection practices in the Chilean market and the nature of the loan or lease.

We estimate expected credit losses for certain commercial mortgage loan or direct financing lease commitments where we have a contractual obligation to extend credit. The expected credit losses are estimated based on the commercial mortgage loan or direct financing lease valuation allowance process described previously, adjusted for probability of funding. The estimated expected credit losses for commercial mortgage loan and direct financing lease commitments are reported in other liabilities on the consolidated statements of financial position. The change in the credit loss liability for commitments is included in net realized capital gains (losses) on the consolidated statements of operations. Once funded, expected credit losses for commercial mortgage loans or direct financing leases are included within the commercial mortgage loan or direct financing lease valuation allowance described previously.

We evaluate residential mortgage loans based on aggregated risk factors and historical loss experience by pool type. We adjust these quantitative factors for qualitative factors of present and forecasted conditions. Qualitative factors include items such as economic and business conditions, changes in the portfolio, value of underlying collateral and concentrations. A residential mortgage loan is evaluated individually if it does not continue to share similar risk characteristics of a pool. We analyze the need for an individual evaluation for any domestic residential mortgage loan that is delinquent for 60 days or more, in process of foreclosure, restructured, on the internal “watch list” or that currently is evaluated individually. We analyze the need for an individual evaluation for any Chilean residential mortgage loan that is considered past due based on collection practices in the Chilean market and the nature of the loan.

As discussed previously, commercial and residential mortgage loans and direct financing leases are evaluated individually if the asset does not continue to share similar risk characteristics of a pool. When we determine a commercial or residential mortgage loan is probable of foreclosure, a valuation allowance is established equal to the difference between the carrying amount of the mortgage loan and the estimated value of the collateral reduced by the cost to sell. For certain commercial mortgage loans where repayment is expected to be provided substantially through the operation or sale of the collateral and the borrower is experiencing financial difficulty, we elect to establish a valuation allowance equal to the difference between the carrying amount of the mortgage loan and the estimated value of the real estate collateral, which may be reduced by the cost to sell. Estimated value may also be based on either the present value of the expected future cash flows discounted at the asset’s effective interest rate or the asset’s observable market price. Subsequent changes in the estimated value are reflected in the valuation allowance. Amounts on financing receivables deemed to be uncollectible are charged off and removed from the valuation allowance. The change in the valuation allowance for loans and direct financing leases is included in net realized capital gains (losses) on the consolidated statements of operations.

Our reinsurance recoverables are pooled by reinsurer risk rating with an estimated loss ratio applied against each risk rating level. The loss ratio is generally based upon industry historical loss experience and expected recovery timing as adjusted for certain current and forecasted environmental factors management believes to be relevant. Environmental factors are forecasted for five years or less with immediate reversion to industry historical experience. A reinsurance recoverable is evaluated individually if it does not continue to share similar risk characteristics of a pool. We analyze the need for an individual evaluation for any reinsurance recoverable based on past due payments and changes in reinsurer risk ratings. The change in the valuation allowance for reinsurance recoverables is included in benefits, claims and settlement expenses on the consolidated statements of operations.

A rollforward of our valuation allowance was as follows:

	For the three months ended September 30, 2021
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance	$	36.6	$	0.3	$	3.2	$	2.6	$	42.7
Provision (1)		(2.1)		—		(1.4)		0.1		(3.4)
Charge-offs		—		—		(0.2)		—		(0.2)
Recoveries		—		—		1.0		—		1.0
Foreign currency translation adjustment		(0.1)		—		—		—		(0.1)
Ending balance	$	34.4	$	0.3	$	2.6	$	2.7	$	40.0

	For the three months ended September 30, 2020
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance	$	40.4	$	0.2	$	5.6	$	2.5	$	48.7
Provision		1.7		(0.1)		(0.3)		0.1		1.4
Charge-offs		—		—		(0.1)		—		(0.1)
Recoveries		—		—		0.6		—		0.6
Ending balance	$	42.1	$	0.1	$	5.8	$	2.6	$	50.6

	For the nine months ended September 30, 2021
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance	$	43.2	$	0.1	$	6.9	$	2.7	$	52.9
Provision (1)		(8.6)		0.2		(6.5)		—		(14.9)
Charge-offs		—		—		(0.5)		—		(0.5)
Recoveries		—		—		2.7		—		2.7
Foreign currency translation adjustment		(0.2)		—		—		—		(0.2)
Ending balance	$	34.4	$	0.3	$	2.6	$	2.7	$	40.0

	For the nine months ended September 30, 2020
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance (2)	$	27.3	$	—	$	3.3	$	2.5	$	33.1
Provision (3)		14.8		0.1		1.0		0.1		16.0
Charge-offs		—		—		(0.3)		—		(0.3)
Recoveries		—		—		1.8		—		1.8
Ending balance	$	42.1	$	0.1	$	5.8	$	2.6	$	50.6

(1) During the three and nine months ended September 30, 2021, certain valuation allowances for commercial and residential mortgage loans were released. This release was a result of further adjustments to our current and forecasted environmental factors management believed to be relevant as global economic activity improved from previously adverse impacts due to COVID-19.

(2) Upon adoption of authoritative guidance effective January 1, 2020, we updated accounting policies and methodology, adjusted the commercial and residential mortgage loan valuation allowance and established a valuation allowance for reinsurance recoverables. See Note 1, Nature of Operations and Significant Accounting Policies under the caption, “Recent Accounting Pronouncements” for further details.

(3) During the nine months ended September 30, 2020, COVID-19 adversely impacted global economic activity and contributed to significant volatility in financial markets. As a result, certain current and forecasted environmental factors management believed to be relevant were adjusted, resulting in an increase in the valuation allowance for commercial and residential mortgage loans and direct financing leases.

Mortgage Loans

We periodically purchase mortgage loans as well as sell mortgage loans we have originated. Mortgage loans purchased and sold were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Commercial mortgage loans:
Purchased	$	1.5	$	65.0	$	106.3	$	151.3
Sold		—		3.3		66.3		4.4
Residential mortgage loans:
Purchased (1)		1,142.0		242.0		1,955.0		736.5
Sold		29.5		24.6		73.1		98.0

(1) Includes mortgage loans purchased by residential mortgage loan VIEs established in 2021.

Our commercial mortgage loan portfolio is diversified by geographic region and specific collateral property type as follows:

	September 30, 2021				December 31, 2020
	Amortized		Percent		Amortized		Percent
	cost		of total		cost		of total
	($ in millions)
Geographic distribution
New England	$	588.4	3.6	%	$	593.9	3.8	%
Middle Atlantic		4,508.0	27.5			4,438.2	28.8
East North Central		596.4	3.7			572.6	3.7
West North Central		290.4	1.8			267.5	1.7
South Atlantic		2,455.1	15.0			2,368.9	15.3
East South Central		374.9	2.3			316.6	2.1
West South Central		1,249.6	7.7			1,315.9	8.5
Mountain		1,006.9	6.2			936.2	6.1
Pacific		4,825.0	29.5			4,183.0	27.1
International		437.9	2.7			448.8	2.9
Total	$	16,332.6	100.0	%	$	15,441.6	100.0	%
Property type distribution
Office	$	4,839.0	29.7	%	$	4,491.7	29.0	%
Retail		1,689.7	10.3			1,815.3	11.8
Industrial		2,970.6	18.2			2,488.7	16.1
Apartments		6,059.0	37.1			5,958.0	38.6
Hotel		86.6	0.5			89.4	0.6
Mixed use/other		687.7	4.2			598.5	3.9
Total	$	16,332.6	100.0	%	$	15,441.6	100.0	%

Mortgage Loan Modifications

We assess COVID-19 related loan modifications to determine if they are in scope of the CARES Act TDR relief and the Interagency Statement guidance, which was effective in the second quarter of 2020. See Note 1, Nature of Operations and Significant Accounting Policies, under the caption “Investments” for further details. COVID-19 related loan modifications typically include delayed principal and interest payments. Based on the terms of the delayed principal and interest payments, past due status generally will not advance and loans generally will not be placed on non-accrual status during the delay. We did not have a significant amount of COVID-19 related loan modifications that were in scope of the CARES Act TDR relief or the Interagency Statement guidance for the three and nine months ended September 30, 2021 and 2020.

We assess loan modifications outside the scope of the CARES Act TDR relief or Interagency Statement guidance on a case-by-case basis to evaluate whether a TDR has occurred. When we have commercial mortgage loan TDRs, they are modified to delay or reduce principal payments and to reduce or delay interest payments. The commercial mortgage loan modifications result in delayed cash receipts, a decrease in interest income and loan rates that are considered below market. When we have residential mortgage loan TDRs, they include modifications of interest-only payment periods, delays in principal balloon payments and interest rate reductions. Residential mortgage loan modifications result in delayed or decreased cash receipts and a decrease in interest income.

When we have commercial mortgage loan TDRs, they are reserved for in the mortgage loan valuation allowance at the estimated fair value of the underlying collateral reduced by the cost to sell.

When we have residential mortgage loan TDRs, they are specifically reserved for in the mortgage loan valuation allowance if losses result from the modification. Residential mortgage loans that have defaulted or have been discharged through bankruptcy are reduced to the expected collectible amount.

We did not have any significant loans that were modified and met the criteria of a TDR for the three and nine months ended September 30, 2021 and 2020.

Securities Posted as Collateral

As of September 30, 2021 and December 31, 2020, we posted $5,010.7 million and $4,604.9 million, respectively, in commercial mortgage loans and residential first lien mortgages to satisfy collateral requirements associated with our obligation under funding agreements with Federal Home Loan Bank of Des Moines (“FHLB Des Moines”). In addition, as of September 30, 2021 and December 31, 2020, we posted $2,561.9 million and $2,563.9 million, respectively, in fixed maturities, available-for-sale and trading securities to satisfy collateral requirements primarily associated with a reinsurance arrangement, our derivative credit support annex (collateral) agreements, Futures Commission Merchant (“FCM”) agreements, a lending arrangement and our obligation under funding agreements with FHLB Des Moines. Since we did not relinquish ownership rights on these instruments, they are reported as mortgage loans, fixed maturities, available-for-sale and fixed maturities, trading, respectively, on our consolidated statements of financial position. Of the securities posted as collateral, as of September 30, 2021 and December 31, 2020, $227.7 million and $133.4 million, respectively, could be sold or repledged by the secured party.

Balance Sheet Offsetting

Financial assets subject to master netting agreements or similar agreements were as follows:

			Gross amounts not offset in the
			consolidated statements
			of financial position
	Gross amount
	of recognized		Financial		Collateral
	assets (1)		instruments (2)		received		Net amount
	(in millions)
September 30, 2021
Derivative assets	$	328.1	$	(112.1)	$	(208.1)	$	7.9
Reverse repurchase agreements		24.2		—		(24.2)		—
Total	$	352.3	$	(112.1)	$	(232.3)	$	7.9
December 31, 2020
Derivative assets	$	463.5	$	(132.5)	$	(293.5)	$	37.5
Reverse repurchase agreements		63.7		—		(63.7)		—
Total	$	527.2	$	(132.5)	$	(357.2)	$	37.5

(1) The gross amount of recognized derivative and reverse repurchase agreement assets are reported with other investments and cash and cash equivalents, respectively, on the consolidated statements of financial position. The gross amounts of derivative and reverse repurchase agreement assets are not netted against offsetting liabilities for presentation on the consolidated statements of financial position.

(2) Represents amount of offsetting derivative liabilities that are subject to an enforceable master netting agreement or similar agreement that are not netted against the gross derivative assets for presentation on the consolidated statements of financial position.

Financial liabilities subject to master netting agreements or similar agreements were as follows:

			Gross amounts not offset in the
			consolidated statements
			of financial position
	Gross amount
	of recognized		Financial		Collateral
	liabilities (1)		instruments (2)		pledged		Net amount
	(in millions)
September 30, 2021
Derivative liabilities	$	242.2	$	(112.1)	$	(73.9)	$	56.2
December 31, 2020
Derivative liabilities	$	186.2	$	(132.5)	$	(45.7)	$	8.0

(1) The gross amount of recognized derivative liabilities is reported with other liabilities on the consolidated statements of financial position. The above excludes $356.1 million and $467.8 million of derivative liabilities as of September 30, 2021 and December 31, 2020, respectively, which are primarily embedded derivatives that are not subject to master netting agreements or similar agreements. The gross amounts of derivative liabilities are not netted against offsetting assets for presentation on the consolidated statements of financial position.

(2) Represents amount of offsetting derivative assets that are subject to an enforceable master netting agreement or similar agreement that are not netted against the gross derivative liabilities for presentation on the consolidated statements of financial position.

The financial instruments that are subject to master netting agreements or similar agreements include right of setoff provisions. Derivative instruments include provisions to setoff positions covered under the agreements with the same counterparties and provisions to setoff positions outside of the agreements with the same counterparties in the event of default by one of the parties. Derivative instruments also include collateral or variation margin provisions, which are generally settled daily with each counterparty. See Note 4, Derivative Financial Instruments, for further details.

Repurchase and reverse repurchase agreements include provisions to setoff other repurchase and reverse repurchase balances with the same counterparty. Repurchase and reverse repurchase agreements also include collateral provisions with the counterparties. For reverse repurchase agreements we require the counterparties to pledge collateral with a value greater than the amount of cash transferred. We have the right but do not sell or repledge collateral received in reverse repurchase agreements. Repurchase agreements are structured as secured borrowings for all counterparties. We pledge fixed maturities available-for-sale, which the counterparties have the right to sell or repledge. Interest incurred on repurchase agreements is reported as part of operating expenses on the consolidated statements of operations. Net proceeds related to repurchase agreements are reported as a component of financing activities on the consolidated statements of cash flows. We did not have any outstanding repurchase agreements as of September 30, 2021 and December 31, 2020.

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Derivative Financial Instruments

9 Months Ended

Sep. 30, 2021

Derivative Financial Instruments

Derivative Financial Instruments

4. Derivative Financial Instruments

Derivatives are generally used to hedge or reduce exposure to market risks associated with assets held or expected to be purchased or sold and liabilities incurred or expected to be incurred. Derivatives are used to change the characteristics of our asset/liability mix consistent with our risk management activities. Derivatives are also used in asset replication strategies.

Types of Derivative Instruments

Interest Rate Contracts

Interest rate risk is the risk we will incur economic losses due to adverse changes in interest rates. Sources of interest rate risk include the difference between the maturity and interest rate changes of assets with the liabilities they support, timing differences between the pricing of liabilities and the purchase or procurement of assets and changing cash flow profiles from original projections due to prepayment options embedded within asset and liability contracts. We use various derivatives to manage our exposure to fluctuations in interest rates.

Interest rate swaps are contracts in which we agree with other parties to exchange, at specified intervals, the difference between fixed rate and/or floating rate interest amounts based upon designated market rates or rate indices and an agreed upon notional principal amount. Generally, no cash is exchanged at the outset of the contract and no principal payments are made by any party. Cash is paid or received based on the terms of the swap. We use interest rate swaps primarily to more closely match the interest rate characteristics of assets and liabilities and to mitigate the risks arising from timing mismatches between assets and liabilities (including duration mismatches). We also use interest rate swaps to hedge against changes in the value of assets we anticipate acquiring and other anticipated transactions and commitments. Interest rate swaps are used to hedge against changes in the value of the guaranteed minimum withdrawal benefit (“GMWB”) liability. The GMWB rider on our variable annuity products provides for guaranteed minimum withdrawal benefits regardless of the actual performance of various equity and/or fixed income funds available with the product.

Interest rate options, including interest rate caps and interest rate floors, which can be combined to form interest rate collars, are contracts that entitle the purchaser to pay or receive the amounts, if any, by which a specified market rate exceeds a cap strike interest rate, or falls below a floor strike interest rate, respectively, at specified dates. We use interest rate options to manage prepayment risks in our assets and minimum guaranteed interest rates and lapse risks in our liabilities.

A swaption is an option to enter into an interest rate swap at a future date. We have purchased swaptions to hedge interest rate exposure for certain assets and liabilities. Swaptions not only hedge against the downside risk, but also allow us to take advantage of any upside benefits.

In exchange-traded futures transactions, we agree to purchase or sell a specified number of contracts, the values of which are determined by the values of designated classes of securities, and to post variation margin on a daily basis in an amount equal to the difference in the daily market values of those contracts. We enter into exchange-traded futures with regulated futures commissions merchants who are members of a trading exchange. We have used exchange-traded futures to reduce market risks from changes in interest rates and to alter mismatches between the assets in a portfolio and the liabilities supported by those assets.

Interest rate forwards, including to be announced (“TBA”) forwards and treasury forwards, are contracts to take delivery of a fixed income security at a specified price at a future date. TBA forwards deliver government guaranteed mortgage-backed securities and treasury forwards deliver U.S. Treasury bonds. At inception of these forward contracts we do not intend to take physical delivery. We have used TBA forwards to gain exposure to the investment risk and return of agency mortgage-backed security pools in order to reduce asset and liability duration mismatch. Treasury forwards are used to hedge against changes in the value of the GMWB liability.

Foreign Exchange Contracts

Foreign currency risk is the risk we will incur economic losses due to adverse fluctuations in foreign currency exchange rates. This risk arises from foreign currency-denominated funding agreements issued to nonqualified institutional investors in the international market, foreign currency-denominated fixed maturity and equity securities, and our international operations, including expected cash flows and potential acquisition and divestiture activity. We use various derivatives to manage our exposure to fluctuations in foreign currency exchange rates.

Currency swaps are contracts in which we agree with other parties to exchange, at specified intervals, a series of principal and interest payments in one currency for that of another currency. Generally, the principal amount of each currency is exchanged at the beginning and termination of the currency swap by each party. The interest payments are primarily fixed-to-fixed rate; however, they may also be fixed-to-floating rate or floating-to-fixed rate. These transactions are entered into pursuant to master agreements that provide for a single net payment to be made by one counterparty for payments made in the same currency at each due date. We use currency swaps to reduce market risks from changes in currency exchange rates with respect to investments or liabilities denominated in foreign currencies that we either hold or intend to acquire or sell.

Currency forwards are contracts in which we agree with other parties to deliver or receive a specified amount of an identified currency at a specified future date. Typically, the price is agreed upon at the time of the contract and payment for such a contract is made at the specified future date. We use currency forwards to reduce market risks from changes in currency exchange rates with respect to investments or liabilities denominated in foreign currencies that we either hold or intend to acquire or sell. We use currency forwards to hedge certain net equity investments in foreign operations, including certain sponsored investment funds.

Currency options are contracts that give the holder the right, but not the obligation to buy or sell a specified amount of the identified currency within a limited period of time at a contracted price. The contracts are net settled in cash, based on the differential in the current foreign exchange rate and the strike price. Purchased and sold options can be combined to form a foreign currency collar where we receive a payment if the foreign exchange rate is below the purchased option strike price and make a payment if the foreign exchange rate is above the sold option strike price. We use currency options to hedge expected cash flows from our foreign operations.

Equity Contracts

Equity risk is the risk that we will incur economic losses due to adverse fluctuations in common stock prices. We use various derivatives to manage our exposure to equity risk, which arises from products in which the return or interest we credit is tied to an external equity index as well as products subject to minimum contractual guarantees.

We purchase equity call spreads (“option collars”) to hedge the equity participation rates promised to contractholders in conjunction with our fixed deferred annuity and universal life products that credit interest based on changes in an external equity index. We use exchange-traded futures and equity put options to hedge against changes in the value of the GMWB liability related to the GMWB rider on our variable annuity product. The premium associated with certain options is paid quarterly over the life of the option contract.

We also use exchange-traded futures in various fund strategies to manage an absolute return and volatility reduction objective for equity risk against respective benchmarks.

Credit Contracts

Credit risk relates to the uncertainty associated with the continued ability of a given obligor to make timely payments of principal and interest. We use credit default swaps to enhance the return on our investment portfolio by providing comparable exposure to fixed income securities that might not be available in the primary market. They are also used to hedge credit exposures in our investment portfolio. Credit derivatives are used to sell or buy credit protection on an identified name or names on an unfunded or synthetic basis in return for receiving or paying a quarterly premium. The premium generally corresponds to a referenced name’s credit spread at the time the agreement is executed. In cases where we sell protection, we also buy a quality cash bond to match against the credit default swap, thereby entering into a synthetic transaction replicating a cash security. When selling protection, if there is an event of default by the referenced name, as defined by the agreement, we are obligated to pay the counterparty the referenced amount of the contract and receive in return the referenced security in a principal amount equal to the notional value of the credit default swap.

Other Contracts

Embedded Derivatives. We purchase or issue certain financial instruments or products that contain a derivative instrument that is embedded in the financial instrument or product. When it is determined that the embedded derivative possesses economic characteristics that are not clearly or closely related to the economic characteristics of the host contract and a separate instrument with the same terms would qualify as a derivative instrument, the embedded derivative is bifurcated from the host instrument for measurement purposes. The embedded derivative, which is reported with the host instrument in the consolidated statements of financial position, is carried at fair value.

We offer group annuity contracts that have guaranteed separate accounts as an investment option. We also offer funds with embedded fixed rate guarantees as investment options in our defined contribution plans in Hong Kong.

We have fixed deferred annuities and universal life products that credit interest based on changes in an external equity index. We also have certain variable annuity products with a GMWB rider, which allows the customer to make withdrawals of a specified annual amount, either for a fixed number of years or for the lifetime of the customer, even if the account value is fully exhausted. Declines in the equity markets may increase our exposure to benefits under contracts with the GMWB. We economically hedge the exposure in these contracts, as previously explained.

Exposure

Our risk of loss is typically limited to the fair value of our derivative instruments and not to the notional or contractual amounts of these derivatives. We are also exposed to credit losses in the event of nonperformance of the counterparties. Our current credit exposure is limited to the value of derivatives that have become favorable to us. This credit risk is minimized by purchasing such agreements from financial institutions with high credit ratings and by establishing and monitoring exposure limits. We also utilize various credit enhancements, including collateral and credit triggers to reduce the credit exposure to our derivative instruments.

Derivatives may be exchange-traded or they may be privately negotiated contracts, which are usually referred to as over-the-counter (“OTC”) derivatives. Certain of our OTC derivatives are cleared and settled through central clearing counterparties (“OTC cleared”), while others are bilateral contracts between two counterparties (“bilateral OTC”). Our derivative transactions are generally documented under International Swaps and Derivatives Association, Inc. (“ISDA”) Master Agreements. Management believes that such agreements provide for legally enforceable set-off and close-out netting of exposures to specific counterparties. Under such agreements, in connection with an early termination of a transaction, we are permitted to set off our receivable from a counterparty against our payables to the same counterparty arising out of all included transactions. For reporting purposes, we do not offset fair value amounts of bilateral OTC derivatives for the right to reclaim cash collateral or the obligation to return cash collateral against fair value amounts recognized for derivative instruments executed with the same counterparties under master netting agreements. OTC cleared derivatives have variation margin that is legally characterized as settlement of the derivative exposure, which reduces their fair value in the consolidated statements of financial position.

We posted $232.3 million and $148.3 million in cash and securities under collateral arrangements as of September 30, 2021 and December 31, 2020, respectively, to satisfy collateral and initial margin requirements associated with our derivative credit support agreements and FCM agreements.

Certain of our derivative instruments contain provisions that require us to maintain an investment grade rating from each of the major credit rating agencies on our debt. If the ratings on our debt were to fall below investment grade, it would be in violation of these provisions and the counterparties to the derivative instruments could request immediate payment or demand immediate and ongoing full overnight collateralization on derivative instruments in net liability positions. The aggregate fair value, inclusive of accrued interest, of all derivative instruments with credit-risk-related contingent features that were in a liability position without regard to netting under derivative credit support annex agreements as of September 30, 2021 and December 31, 2020, was $165.9 million and $180.2 million, respectively. Cleared derivatives have contingent features that require us to post excess margin as required by the FCM. The terms surrounding excess margin vary by FCM agreement. With respect to derivatives containing collateral triggers, we posted collateral and initial margin of $232.3 million and $148.3 million as of September 30, 2021 and December 31, 2020, respectively, in the normal course of business, which reflects netting under derivative agreements. If the credit-risk-related contingent features underlying these agreements were triggered on September 30, 2021, we would be required to post an additional $57.8 million of collateral to our counterparties.

As of September 30, 2021 and December 31, 2020, we had received $176.9 million and $225.2 million, respectively, of cash collateral associated with our derivative credit support annex agreements and FCM agreements, for which we recorded a corresponding liability reflecting our obligation to return the collateral.

Notional amounts are used to express the extent of our involvement in derivative transactions and represent a standard measurement of the volume of our derivative activity. Notional amounts represent those amounts used to calculate contractual flows to be exchanged and are not paid or received, except for contracts such as currency swaps. Credit exposure represents the gross amount owed to us under derivative contracts as of the valuation date. The notional amounts and credit exposure of our derivative financial instruments by type were as follows:

	September 30, 2021		December 31, 2020
	(in millions)
Notional amounts of derivative instruments
Interest rate contracts:
Interest rate swaps	$	44,028.9	$	44,472.1
Interest rate options		2,373.9		2,083.9
Interest rate forwards		2,181.6		1,000.0
Interest rate futures		1,585.0		188.5
Swaptions		—		62.0
Foreign exchange contracts:
Currency swaps		1,152.6		1,045.5
Currency forwards		1,006.7		1,115.8
Equity contracts:
Equity options		2,284.4		1,857.8
Equity futures		117.4		218.1
Credit contracts:
Credit default swaps		310.0		295.0
Other contracts:
Embedded derivatives		10,141.6		9,953.8
Total notional amounts at end of period	$	65,182.1	$	62,292.5
Credit exposure of derivative instruments
Interest rate contracts:
Interest rate swaps	$	215.1	$	291.0
Interest rate options		31.9		51.0
Interest rate forwards		—		6.2
Foreign exchange contracts:
Currency swaps		46.0		43.3
Currency forwards		8.9		45.4
Equity contracts:
Equity options		36.2		33.2
Credit contracts:
Credit default swaps		3.0		3.4
Total gross credit exposure		341.1		473.5
Less: collateral received		217.9		294.7
Net credit exposure	$	123.2	$	178.8

The fair value of our derivative instruments classified as assets and liabilities was as follows:

	Derivative assets (1)				Derivative liabilities (2)
	September 30, 2021		December 31, 2020		September 30, 2021		December 31, 2020
	(in millions)
Derivatives designated as hedging instruments
Interest rate contracts	$	0.6	$	—	$	21.2	$	27.8
Foreign exchange contracts		46.2		21.1		15.2		44.7
Total derivatives designated as hedging instruments	$	46.8	$	21.1	$	36.4	$	72.5
Derivatives not designated as hedging instruments
Interest rate contracts	$	234.2	$	339.3	$	62.6	$	33.0
Foreign exchange contracts		7.9		66.5		78.8		29.2
Equity contracts		36.3		33.2		62.6		49.0
Credit contracts		2.9		3.4		2.6		2.5
Other contracts		—		—		355.3		467.8
Total derivatives not designated as hedging instruments		281.3		442.4		561.9		581.5
Total derivative instruments	$	328.1	$	463.5	$	598.3	$	654.0

(1) The fair value of derivative assets is reported with other investments on the consolidated statements of financial position.

(2) The fair value of derivative liabilities is reported with other liabilities on the consolidated statements of financial position, with the exception of certain embedded derivative liabilities. Embedded derivatives with a net liability fair value of $355.3 million and $467.8 million as of September 30, 2021 and December 31, 2020, respectively, are reported with contractholder funds on the consolidated statements of financial position.

Credit Derivatives Sold

When we sell credit protection, we are exposed to the underlying credit risk similar to purchasing a fixed maturity security instrument. Our credit derivative contracts sold reference a single name or reference security (referred to as “single name credit default swaps”). These instruments are either referenced in an OTC credit derivative transaction or embedded within an investment structure that has been fully consolidated into our financial statements.

These credit derivative transactions are subject to events of default defined within the terms of the contract, which normally consist of bankruptcy, failure to pay, or modified restructuring of the reference entity and/or issue. If a default event occurs for a reference name or security, we are obligated to pay the counterparty an amount equal to the notional amount of the credit derivative transaction. As a result, our maximum future payment is equal to the notional amount of the credit derivative. In certain cases, we also may have purchased credit protection with identical underlyings to certain of our sold protection transactions. As of September 30, 2021 and December 31, 2020, we did not purchase credit protection relating to our sold protection transactions. In certain circumstances, our potential loss could also be reduced by any amount recovered in the default proceedings of the underlying credit name.

The following tables show our credit default swap protection sold by types of contract, types of referenced/underlying asset class and external agency rating for the underlying reference security. The maximum future payments are undiscounted and have not been reduced by the effect of any offsetting transactions, collateral or recourse features described above.

	September 30, 2021
							Weighted
					Maximum		average
	Notional		Fair		future		expected life
	amount		value		payments		(in years)
	(in millions)
Single name credit default swaps
Corporate debt
A	$	20.0	$	0.4	$	20.0	3.7
BBB		110.0		2.0		110.0	3.3
Sovereign
A		20.0		0.5		20.0	3.7
BBB		15.0		—		15.0	0.2
Total credit default swap protection sold	$	165.0	$	2.9	$	165.0	3.1

	December 31, 2020
							Weighted
					Maximum		average
	Notional		Fair		future		expected life
	amount		value		payments		(in years)
	(in millions)
Single name credit default swaps
Corporate debt
A	$	20.0	$	0.5	$	20.0	4.5
BBB		115.0		2.1		115.0	3.9
Sovereign
A		20.0		0.6		20.0	4.5
BBB		15.0		0.1		15.0	1.0
Total credit default swap protection sold	$	170.0	$	3.3	$	170.0	3.8

Fair Value and Cash Flow Hedges

Fair Value Hedges

We use fixed-to-floating rate interest rate swaps to more closely align the interest rate characteristics of certain assets and have used them to align the interest rate characteristics of certain liabilities. In general, these swaps are used in asset and liability management to modify duration, which is a measure of sensitivity to interest rate changes.

The net interest effect of interest rate swap transactions for derivatives in fair value hedges is recorded as an adjustment to income or expense of the underlying hedged item in our consolidated statements of operations.

The following amounts were recorded on the consolidated statements of financial position related to cumulative basis adjustments for fair value hedges. The amortized cost includes the amortized cost basis and the fair value hedging basis adjustment.

					Cumulative amount of fair
					value hedging basis adjustment
Line item in the consolidated statements					increase included in the
of financial position in which the	Amortized cost of hedged item				amortized cost of the hedged item
hedged item is included	September 30, 2021		December 31, 2020		September 30, 2021		December 31, 2020
	(in millions)
Fixed maturities, available-for-sale (1):
Active hedging relationships	$	829.2	$	476.1	$	1.0	$	21.4
Discontinued hedging relationships		80.2		135.1		3.1		5.2
Total fixed maturities, available-for-sale in active or discontinued hedging relationships	$	909.4	$	611.2	$	4.1	$	26.6

(1) These amounts include the amortized cost basis of closed portfolios used to designate last-of-layer hedging relationships in which the hedged last layer amount is expected to remain at the end of the hedging relationship. As of September 30, 2021 and December 31, 2020, the amortized cost basis of the closed portfolios used in these hedging relationships was $347.7 million and $0.0 million, respectively, the cumulative basis adjustments associated with these hedging relationships was $(1.9) million and $0.0 million, respectively, and the amount of the designated hedged items were $210.0 million and $0.0 million, respectively.

Cash Flow Hedges

We utilized floating-to-fixed rate interest rate swaps to eliminate the variability in cash flows of recognized financial assets and liabilities and forecasted transactions.

We enter into currency exchange swap agreements to convert both principal and interest payments of certain foreign denominated assets and liabilities into U.S. dollar denominated fixed rate instruments to eliminate the exposure to future currency volatility on those items.

The net interest effect of interest rate swap and currency swap transactions for derivatives in cash flow hedges is recorded as an adjustment to income or expense of the underlying hedged item in our consolidated statements of operations.

The following table shows the effect of derivatives in cash flow hedging relationships on the consolidated statements of financial position.

		Amount of gain (loss) recognized in AOCI on derivatives
		For the three months ended				For the nine months ended
Derivatives in cash		September 30,				September 30,
flow hedging relationships	Related hedged item	2021		2020		2021		2020
		(in millions)
Interest rate contracts	Fixed maturities, available-for-sale	$	—	$	—	$	—	$	(3.0)
Interest rate contracts	Investment contracts		0.6		—		0.6		—
Foreign exchange contracts	Fixed maturities, available-for-sale		30.5		(29.3)		52.3		17.2
Total		$	31.1	$	(29.3)	$	52.9	$	14.2

We expect to reclassify net gains of $22.1 million from AOCI into net income in the next 12 months, which includes both net deferred gains on discontinued hedges and net gains on periodic settlements of active hedges. Actual amounts may vary from this amount as a result of market conditions.

Effect of Fair Value and Cash Flow Hedges on Consolidated Statements of Operations

The following tables show the effect of derivatives in fair value and cash flow hedging relationships and the related hedged items on the consolidated statements of operations.

	For the three months ended September 30, 2021
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains (losses)		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	1,093.4	$	(152.0)	$	1,770.9
Losses on fair value hedging relationships:
Interest rate contracts:
Loss recognized on hedged item	$	(4.0)	$	—	$	—
Gain recognized on derivatives		5.4		—		—
Amortization of hedged item basis adjustments		(0.5)		—		—
Amounts related to periodic settlements on derivatives		(2.4)		—		(0.1)
Total loss recognized for fair value hedging relationships	$	(1.5)	$	—	$	(0.1)
Gains on cash flow hedging relationships:
Interest rate contracts:
Gain reclassified from AOCI on derivatives	$	3.8	$	—	$	—
Gain reclassified from AOCI as a result that a forecasted transaction is no longer probable of occurring		—		0.1		—
Foreign exchange contracts:
Amounts related to periodic settlements on derivatives		2.6		—		—
Total gain recognized for cash flow hedging relationships	$	6.4	$	0.1	$	—

	For the three months ended September 30, 2020
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	917.9	$	65.5	$	1,839.8
Losses on fair value hedging relationships:
Interest rate contracts:
Loss recognized on hedged item	$	(2.1)	$	—	$	—
Gain recognized on derivatives		1.8		—		—
Amortization of hedged item basis adjustments		(0.6)		—		—
Amounts related to periodic settlements on derivatives		(1.8)		—		—
Total loss recognized for fair value hedging relationships	$	(2.7)	$	—	$	—
Gains (losses) on cash flow hedging relationships:
Interest rate contracts:
Gain (loss) reclassified from AOCI on derivatives	$	4.4	$	0.1	$	(0.1)
Foreign exchange contracts:
Gain reclassified from AOCI on derivatives		—		0.2		—
Amounts related to periodic settlements on derivatives		2.0		—		—
Total gain (loss) recognized for cash flow hedging relationships	$	6.4	$	0.3	$	(0.1)

	For the nine months ended September 30, 2021
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains (losses)		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	3,167.0	$	(41.7)	$	4,958.4
Losses on fair value hedging relationships:
Interest rate contracts:
Loss recognized on hedged item	$	(20.5)	$	—	$	—
Gain recognized on derivatives		22.2		—		—
Amortization of hedged item basis adjustments		(1.5)		—		—
Amounts related to periodic settlements on derivatives		(6.8)		—		(0.1)
Total loss recognized for fair value hedging relationships	$	(6.6)	$	—	$	(0.1)
Gains (losses) on cash flow hedging relationships:
Interest rate contracts:
Gain (loss) reclassified from AOCI on derivatives	$	11.9	$	—	$	(0.1)
Gain reclassified from AOCI as a result that a forecasted transaction is no longer probable of occurring		—		0.5		—
Foreign exchange contracts:
Gain reclassified from AOCI on derivatives		—		0.7		—
Amounts related to periodic settlements on derivatives		7.0		—		—
Total gain (loss) recognized for cash flow hedging relationships	$	18.9	$	1.2	$	(0.1)

	For the nine months ended September 30, 2020
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	2,846.1	$	169.5	$	6,299.8
Losses on fair value hedging relationships:
Interest rate contracts:
Gain recognized on hedged item	$	9.1	$	—	$	—
Loss recognized on derivatives		(9.7)		—		—
Amortization of hedged item basis adjustments		(1.9)		—		—
Amounts related to periodic settlements on derivatives		(4.1)		—		—
Total loss recognized for fair value hedging relationships	$	(6.6)	$	—	$	—
Gains (losses) on cash flow hedging relationships:
Interest rate contracts:
Gain (loss) reclassified from AOCI on derivatives	$	13.8	$	2.7	$	(0.1)
Foreign exchange contracts:
Gain reclassified from AOCI on derivatives		—		6.4		—
Amounts related to periodic settlements on derivatives		6.2		—		—
Total gain (loss) recognized for cash flow hedging relationships	$	20.0	$	9.1	$	(0.1)

Net Investment Hedges

We may take measures to hedge our net equity investments in our foreign operations from currency risk. This is accomplished with the use of currency forwards.

Gains and losses associated with net investment hedges are recorded in AOCI and will be released into net income if our investment in the foreign operation is sold or substantially liquidated.

The following tables show the effect of foreign exchange contracts used to hedge a portion of our net investment in certain sponsored investment funds on the consolidated financial statements.

					Amount of gain
	Amount of gain recognized				reclassified from AOCI into
	in AOCI on derivatives				net realized capital gains (losses)
	for the three months ended				for the three months ended
	September 30,				September 30,
Derivatives in net investment hedging relationships	2021		2020		2021		2020
	(in millions)
Foreign exchange contracts	$	1.3	$	0.8	$	—	$	(7.1)
Total	$	1.3	$	0.8	$	—	$	(7.1)

					Amount of gain
	Amount of gain				reclassified from AOCI into
	recognized in AOCI on derivatives				net realized capital gains (losses)
	for the nine months ended				for the nine months ended
	September 30,				September 30,
Derivatives in net investment hedging relationships	2021		2020		2021		2020
		(in millions)
Foreign exchange contracts	$	2.3	$	10.1	$	—	$	(7.1)
Total	$	2.3	$	10.1	$	—	$	(7.1)

Derivatives Not Designated as Hedging Instruments

Our use of futures, certain swaptions and swaps, option collars, options and forwards are effective from an economic standpoint, but they have not been designated as hedges for financial reporting purposes. As such, periodic changes in the market value of these instruments, which includes mark-to-market gains and losses as well as periodic and final settlements, primarily flow directly into net realized capital gains (losses) on the consolidated statements of operations.

The following table shows the effect of derivatives not designated as hedging instruments, including fair value changes of embedded derivatives that have been bifurcated from the host contract, on the consolidated statements of operations.

	Amount of gain (loss) recognized in				Amount of gain (loss) recognized in
	net income on derivatives for the				net income on derivatives for the
	three months ended September 30,				nine months ended September 30,
Derivatives not designated as hedging instruments	2021		2020		2021		2020
	(in millions)
Interest rate contracts	$	(29.7)	$	(73.5)	$	(131.4)	$	407.0
Foreign exchange contracts		(91.9)		27.2		(117.9)		(5.4)
Equity contracts		18.9		(27.6)		(26.8)		(38.7)
Credit contracts		0.1		0.3		—		1.3
Other contracts		(75.2)		23.1		106.5		(339.2)
Total	$	(177.8)	$	(50.5)	$	(169.6)	$	25.0

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Insurance Liabilities

9 Months Ended

Sep. 30, 2021

Insurance Liabilities

Insurance Liabilities

5. Insurance Liabilities

Liability for Unpaid Claims

The liability for unpaid claims is reported in future policy benefits and claims within our consolidated statements of financial position. Activity associated with unpaid claims was as follows:

	For the nine months ended September 30,
	2021		2020
	(in millions)
Balance at beginning of period	$	2,534.9	$	2,365.5
Less: reinsurance recoverable		436.9		403.8
Net balance at beginning of period		2,098.0		1,961.7
Incurred:
Current year		736.0		985.5
Prior years		441.7		37.9
Total incurred		1,177.7		1,023.4
Payments:
Current year		313.6		595.7
Prior years		773.2		335.1
Total payments		1,086.8		930.8
Net balance at end of period		2,188.9		2,054.3
Plus: reinsurance recoverable		437.9		425.4
Balance at end of period	$	2,626.8	$	2,479.7
Amounts not included in the rollforward above:
Claim adjustment expense liabilities	$	59.5	$	58.0

Incurred liability adjustments relating to prior years, which affected current operations during 2021 and 2020, resulted in part from developed claims for prior years being different than were anticipated when the liabilities for unpaid claims were originally estimated. These trends have been considered in establishing the current year liability for unpaid claims.

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Income Taxes

9 Months Ended

Sep. 30, 2021

Income Taxes

Income Taxes

6. Income Taxes

Effective Income Tax Rate

Our provision for income taxes may not have the customary relationship of taxes to income. A reconciliation between the U.S. corporate income tax rate and the effective income tax rate was as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
U.S. corporate income tax rate	21	%	21	%	21	%	21	%
Dividends received deduction	(4)		(7)		(4)		(5)
Tax credits	(3)		(5)		(2)		(3)
Interest exclusion from taxable income	(1)		(1)		(1)		(1)
Foreign country statutory rate differential	(1)		1		—		—
Impact of equity method presentation	—		(2)		(1)		(1)
State income taxes	1		2		1		1
Low income housing tax credit amortization	1		1		1		1
Other	1		4		—		2
Effective income tax rate	15	%	14	%	15	%	15	%

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Employee and Agent Benefits

9 Months Ended

Sep. 30, 2021

Employee and Agent Benefits

Employee and Agent Benefits

7. Employee and Agent Benefits

Components of Net Periodic Benefit Cost

					Other postretirement
	Pension benefits				benefits
	For the three months ended				For the three months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Service cost	$	20.8	$	18.2	$	—	$	—
Interest cost		25.8		29.3		0.5		0.7
Expected return on plan assets		(45.7)		(39.1)		(1.1)		(9.0)
Amortization of prior service benefit		(4.2)		(4.3)		(0.3)		(0.3)
Recognized net actuarial (gain) loss		17.5		18.9		(0.2)		—
Net periodic benefit cost (income)	$	14.2	$	23.0	$	(1.1)	$	(8.6)

					Other postretirement
	Pension benefits				benefits
	For the nine months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Service cost	$	62.4	$	54.5	$	—	$	—
Interest cost		77.4		88.0		1.6		2.1
Expected return on plan assets		(137.0)		(117.5)		(3.5)		(27.0)
Amortization of prior service benefit		(12.6)		(12.7)		(0.8)		(0.8)
Recognized net actuarial (gain) loss		52.6		56.6		(0.4)		—
Net periodic benefit cost (income)	$	42.8	$	68.9	$	(3.1)	$	(25.7)

The components of net periodic benefit cost including the service cost component are included in operating expenses on the consolidated statements of operations.

Contributions

Our funding policy for our qualified pension plan is to fund the plan annually in an amount at least equal to the minimum annual contribution required under the Employee Retirement Income Security Act (“ERISA”) and, generally, not greater than the maximum amount that can be deducted for federal income tax purposes. It is too early to determine, but we do not anticipate that we will be required to fund a minimum required contribution under ERISA. Regardless, it is possible that we may fund the qualified and nonqualified pension plans in 2021 for a combined total of up to $125.0 million. During the three and nine months ended September 30, 2021, we contributed $20.7 million and $92.1 million to these plans, respectively.

Other Postretirement Plan Changes

Effective January 1, 2021, $656.5 million of assets in excess of the expected liability to cover the postretirement medical benefits for retirees were re-designated for non-retiree benefits. The elections were made pursuant to plan provisions, which provide for assets in excess of 125% of expected liabilities to fund other benefits covered under the plans. The re-designated assets, net of associated tax receivable impacts related to a tax adjustment to accumulated other comprehensive income, are not included as part of the asset balances presented in the footnote as they no longer qualify as plan assets in accordance with U.S. GAAP. The re-designated assets are included in equity securities and other investments on our consolidated statements of financial position beginning January 1, 2021.

Change in Plan Assets

The other postretirement benefits plans’ change in plan assets, reconciled to amounts recognized in the consolidated statements of financial position, was as follows:

	September 30,		December 31,
	2021		2020
	(in millions)
Change in plan assets
Fair value of plan assets, beginning balance	$	780.6	$	732.8
Actual return on plan assets		(2.9)		53.1
Employer contribution		1.1		1.5
Participant contributions		4.6		6.0
Benefits paid		(10.2)		(12.8)
Assets re-designated for non-retiree benefits		(656.5)		—
Fair value of plan assets, ending balance	$	116.7	$	780.6
Amount recognized in statement of financial position
Other assets	$	11.7	$	675.5
Other liabilities		(1.8)		(2.9)
Total	$	9.9	$	672.6

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Contingencies, Guarantees and Indemnifications

9 Months Ended

Sep. 30, 2021

Contingencies, Guarantees and Indemnifications

Contingencies, Guarantees, and Indemnifications

8. Contingencies, Guarantees and Indemnifications

Litigation and Regulatory Contingencies

We are regularly involved in litigation, both as a defendant and as a plaintiff, but primarily as a defendant. Litigation naming us as a defendant ordinarily arises out of our business operations as a provider of asset management and accumulation products and services, individual life insurance, specialty benefits insurance and our investment activities. Some of the lawsuits may be class actions, or purport to be, and some may include claims for unspecified or substantial punitive and treble damages.

We may discuss such litigation in one of three ways. We accrue a charge to income and disclose legal matters for which the chance of loss is probable and for which the amount of loss can be reasonably estimated. We may disclose contingencies for which the chance of loss is reasonably possible and provide an estimate of the possible loss or range of loss or a statement that such an estimate cannot be made. Finally, we may voluntarily disclose loss contingencies for which the chance of loss is remote in order to provide information concerning matters that potentially expose us to possible losses.

In addition, regulatory bodies such as state insurance departments, the SEC, the Financial Industry Regulatory Authority (“FINRA”), the Department of Labor (“DOL”) and other regulatory agencies in the U.S. and in international locations in which we do business, regularly make inquiries and conduct examinations or investigations concerning our compliance with, among other things, insurance laws, securities laws, ERISA and laws governing the activities of broker-dealers. We receive requests from regulators and other governmental authorities relating to industry issues and may receive additional requests, including subpoenas and interrogatories, in the future.

On November 12, 2014, Frederick Rozo filed a class action lawsuit in the United States District Court for the Southern District of Iowa against Principal Life and us. We were later dismissed as a defendant. The Plaintiff alleged that defendants breached fiduciary duties and engaged in prohibited transactions under ERISA in connection with a general account guaranteed product known as the Principal Fixed Income Option (“PFIO”). On May 12, 2017, the district court certified a nationwide class of participants and beneficiaries who had funds invested in one of the PFIO contracts. On September 25, 2018, the district court granted Principal Life’s motion for summary judgment. On February 3, 2020, the Eighth Circuit Court of Appeals reversed that ruling and remanded the case back to the district court. A bench trial was held before the district court November 3-10, 2020. The court issued its ruling on April 8, 2021, and found in favor of Principal Life on all claims. The Plaintiff has appealed this ruling to the Eighth Circuit Court of Appeals. Principal Life will continue to aggressively defend the case.

While the outcome of any pending or future litigation or regulatory matter cannot be predicted, management does not believe any such matter will have a material adverse effect on our business or financial position. As of September 30, 2021, we had no estimated loss accrued related to the legal matter discussed above because we believe the chance of loss from this matter is not probable and the amount of loss cannot be reasonably estimated.

To the extent such matters present a reasonably possible chance of loss, we are generally not able to estimate the possible loss or range of loss associated therewith. The outcome of such matters is always uncertain and unforeseen results can occur. It is possible that such outcomes could require us to pay damages or make other expenditures or establish accruals in amounts that we could not estimate at September 30, 2021.

Guarantees and Indemnifications

In the normal course of business, we have provided guarantees to third parties primarily related to former subsidiaries and joint ventures. The terms of these agreements range in duration and often are not explicitly defined. The maximum exposure under these agreements as of September 30, 2021, was approximately $104.0 million. At inception, the fair value of such guarantees was insignificant. In addition, we believe the likelihood is remote that material payments will be required. Therefore, any liability accrued within our consolidated statements of financial position is insignificant. Should we be required to perform under these guarantees, we generally could recover a portion of the loss from third parties through recourse provisions included in agreements with such parties, the sale of assets held as collateral that can be liquidated in the event performance is required under the guarantees or other recourse generally available to us; therefore, such guarantees would not result in a material adverse effect on our business or financial position. While the likelihood is remote, such outcomes could materially affect net income in a particular quarter or annual period. Furthermore, in connection with our contingent funding agreements, we are required to purchase any principal and interest strips of U.S. Treasury securities that are due and not paid from the associated unconsolidated trusts. The maximum exposure under these agreements as of September 30, 2021, was $750.0 million.

We manage mandatory privatized social security funds in Chile. By regulation, we have a required minimum guarantee on the funds’ relative return. Because the guarantee has no limitation with respect to duration or amount, the maximum exposure of the guarantee in the future is indeterminable.

We are also subject to various other indemnification obligations issued in conjunction with divestitures, acquisitions and financing transactions whose terms range in duration and often are not explicitly defined. Certain portions of these indemnifications may be capped, while other portions are not subject to such limitations; therefore, the overall maximum amount of the obligation under the indemnifications cannot be reasonably estimated. At inception, the fair value of such indemnifications was insignificant. In addition, we believe the likelihood is remote that material payments will be required. Therefore, any liability accrued within our consolidated statements of financial position is insignificant. While we are unable to estimate with certainty the ultimate legal and financial liability with respect to these indemnifications, we believe that performance under these indemnifications would not result in a material adverse effect on our business or financial position. While the likelihood is remote, performance under these indemnifications could materially affect net income in a particular quarter or annual period.

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Stockholders' Equity

9 Months Ended

Sep. 30, 2021

Stockholders' Equity

Stockholders' Equity

9. Stockholders’ Equity

Common Stock Dividends

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
Dividends declared per common share	$	0.63	$	0.56	$	1.80	$	1.68

Reconciliation of Outstanding Common Shares

	For the three months ended		For the nine months ended
	September 30,		September 30,
	2021	2020	2021	2020
	(in millions)
Beginning balance	269.0	274.0	273.3	276.6
Shares issued	0.3	0.6	2.4	2.4
Treasury stock acquired	(3.2)	(0.1)	(9.6)	(4.5)
Ending balance	266.1	274.5	266.1	274.5

In November 2018, our Board of Directors (“Board”) authorized a share repurchase program of up to $500.0 million of our outstanding common stock, which was completed in February 2020. In February 2020, our Board authorized a share repurchase program of up to $900.0 million of our outstanding common stock, which has no expiration date. In June 2021, our Board authorized a share repurchase program of up to $1.2 billion of our outstanding common stock, which has no expiration date. Shares repurchased under these programs are accounted for as treasury stock, carried at cost and reflected as a reduction to stockholders’ equity.

Other Comprehensive Income (Loss)

	For the three months ended						For the nine months ended
	September 30, 2021						September 30, 2021
	Pre-Tax		Tax		After-Tax		Pre-Tax		Tax		After-Tax
	(in millions)
Net unrealized losses on available-for-sale securities during the period	$	(546.4)	$	127.4	$	(419.0)	$	(2,461.6)	$	554.9	$	(1,906.7)
Reclassification adjustment for gains included in net income (1)		(2.6)		0.2		(2.4)		(3.8)		0.2		(3.6)
Adjustments for assumed changes in amortization patterns		32.2		(6.8)		25.4		121.3		(25.5)		95.8
Adjustments for assumed changes in policyholder liabilities		477.2		(104.8)		372.4		1,573.7		(365.3)		1,208.4
Net unrealized losses on available-for-sale securities		(39.6)		16.0		(23.6)		(770.4)		164.3		(606.1)
Net unrealized gains on derivative instruments during the period		31.2		(6.6)		24.6		53.7		(11.3)		42.4
Reclassification adjustment for gains included in net income (2)		(3.9)		0.8		(3.1)		(13.0)		2.7		(10.3)
Adjustments for assumed changes in amortization patterns		(0.5)		0.1		(0.4)		(0.5)		0.1		(0.4)
Adjustments for assumed changes in policyholder liabilities		(0.4)		—		(0.4)		1.0		(0.3)		0.7
Net unrealized gains on derivative instruments		26.4		(5.7)		20.7		41.2		(8.8)		32.4
Foreign currency translation adjustment		(189.3)		(4.0)		(193.3)		(209.5)		(4.6)		(214.1)
Unrecognized postretirement benefit obligation during the period		—		—		—		(9.1)		1.9		(7.2)
Amortization of amounts included in net periodic benefit cost (4)		12.8		(3.5)		9.3		38.8		(10.4)		28.4
Net unrecognized postretirement benefit obligation		12.8		(3.5)		9.3		29.7		(8.5)		21.2
Other comprehensive loss	$	(189.7)	$	2.8	$	(186.9)	$	(909.0)	$	142.4	$	(766.6)

	For the three months ended						For the nine months ended
	September 30, 2020						September 30, 2020
	Pre-Tax		Tax		After-Tax		Pre-Tax		Tax		After-Tax
	(in millions)
Net unrealized gains on available-for-sale securities during the period	$	960.1	$	(200.0)	$	760.1	$	2,378.1	$	(500.1)	$	1,878.0
Reclassification adjustment for (gains) losses included in net income (1)		2.9		(1.0)		1.9		(54.5)		12.6		(41.9)
Adjustments for assumed changes in amortization patterns		(109.0)		22.9		(86.1)		(112.9)		23.7		(89.2)
Adjustments for assumed changes in policyholder liabilities		(565.7)		116.5		(449.2)		(1,136.0)		241.9		(894.1)
Net unrealized gains on available-for-sale securities		288.3		(61.6)		226.7		1,074.7		(221.9)		852.8
Net unrealized gains (losses) on derivative instruments during the period		(29.2)		6.2		(23.0)		26.2		(4.9)		21.3
Reclassification adjustment for gains included in net income (2)		(4.6)		0.9		(3.7)		(22.8)		4.2		(18.6)
Adjustments for assumed changes in amortization patterns		0.2		—		0.2		0.9		(0.2)		0.7
Adjustments for assumed changes in policyholder liabilities		1.7		(0.3)		1.4		4.6		(0.9)		3.7
Net unrealized gains (losses) on derivative instruments		(31.9)		6.8		(25.1)		8.9		(1.8)		7.1
Foreign currency translation adjustment during the period		75.5		5.5		81.0		(231.1)		2.7		(228.4)
Reclassification adjustment for losses included in net income (3)		11.5		1.8		13.3		43.0		1.8		44.8
Foreign currency translation adjustment		87.0		7.3		94.3		(188.1)		4.5		(183.6)
Unrecognized postretirement benefit obligation during the period		—		—		—		0.6		(0.2)		0.4
Amortization of amounts included in net periodic benefit cost (4)		14.3		(3.8)		10.5		43.1		(11.6)		31.5
Net unrecognized postretirement benefit obligation		14.3		(3.8)		10.5		43.7		(11.8)		31.9
Other comprehensive income	$	357.7	$	(51.3)	$	306.4	$	939.2	$	(231.0)	$	708.2

(1) Pre-tax reclassification adjustments relating to available-for-sale securities are reported in net realized capital gains (losses) on the consolidated statements of operations.

(2) See Note 4, Derivative Financial Instruments, under the caption “Effect of Fair Value and Cash Flow Hedges on Consolidated Statements of Operations” for further details.

(3) The 2020 pre-tax reclassification adjustment primarily related to the release of the cumulative translation adjustment from the dissolution of a foreign subsidiary. The adjustment was reported in net realized capital gains (losses) on the consolidated statements of operations. For both the three and nine months ended September 30, 2020, $8.7 million of this reclassification relates to noncontrolling interest and is reported in net income attributable to noncontrolling interest on the consolidated statements of operations.

(4) Amount is comprised of amortization of prior service cost (benefit) and recognized net actuarial (gain) loss, which is reported in operating expenses on the consolidated statements of operations. See Note 7, Employee and Agent Benefits, under the caption “Components of Net Periodic Benefit Cost” for further details.

Accumulated Other Comprehensive Income

			Noncredit
	Net unrealized		component of		Net unrealized		Foreign		Unrecognized		Accumulated
	gains on		impairment losses		gains		currency		postretirement		other
	available-for-sale		on fixed maturities		on derivative		translation		benefit		comprehensive
	securities(1)		available-for-sale		instruments		adjustment		obligation		income
	(in millions)
Balances as of July 1, 2020	$	3,388.2	$	—	$	85.6	$	(1,608.9)	$	(414.2)	$	1,450.7
Other comprehensive income during the period, net of adjustments		224.7		—		(21.4)		79.8		—		283.1
Amounts reclassified from AOCI		1.9		—		(3.7)		4.6		10.5		13.3
Other comprehensive income		226.6		—		(25.1)		84.4		10.5		296.4
Balances as of September 30, 2020	$	3,614.8	$	—	$	60.5	$	(1,524.5)	$	(403.7)	$	1,747.1
Balances as of July 1, 2021	$	3,555.8	$	—	$	29.9	$	(1,333.3)	$	(448.6)	$	1,803.8
Other comprehensive loss during the period, net of adjustments		(21.2)		—		23.8		(191.0)		—		(188.4)
Amounts reclassified from AOCI		(2.4)		—		(3.1)		—		9.3		3.8
Other comprehensive loss		(23.6)		—		20.7		(191.0)		9.3		(184.6)
Balances as of September 30, 2021	$	3,532.2	$	—	$	50.6	$	(1,524.3)	$	(439.3)	$	1,619.2

			Noncredit
	Net unrealized		component of		Net unrealized		Foreign		Unrecognized		Accumulated
	gains on		impairment losses		gains		currency		postretirement		other
	available-for-sale		on fixed maturities		on derivative		translation		benefit		comprehensive
	securities (1)		available-for-sale (2)		instruments		adjustment		obligation		income
	(in millions)
Balances as of January 1, 2020	$	2,806.0	$	(44.1)	$	53.4	$	(1,341.8)	$	(435.6)	$	1,037.9
Other comprehensive income during the period, net of adjustments		894.8		—		25.7		(218.8)		0.4		702.1
Amounts reclassified from AOCI		(41.9)		—		(18.6)		36.1		31.5		7.1
Other comprehensive income		852.9		—		7.1		(182.7)		31.9		709.2
Effects of implementation of accounting change related to credit losses, net		(44.1)		44.1		—		—		—		—
Balances as of September 30, 2020	$	3,614.8	$	—	$	60.5	$	(1,524.5)	$	(403.7)	$	1,747.1
Balances as of January 1, 2021	$	4,138.3	$	—	$	18.2	$	(1,312.9)	$	(460.5)	$	2,383.1
Other comprehensive loss during the period, net of adjustments		(602.5)		—		42.7		(211.4)		(7.2)		(778.4)
Amounts reclassified from AOCI		(3.6)		—		(10.3)		—		28.4		14.5
Other comprehensive loss		(606.1)		—		32.4		(211.4)		21.2		(763.9)
Balances as of September 30, 2021	$	3,532.2	$	—	$	50.6	$	(1,524.3)	$	(439.3)	$	1,619.2

(1) Net unrealized losses on available-for-sale debt securities for which an allowance for credit loss has been recorded were $16.2 million and $4.0 million as of September 30, 2021 and 2020, respectively.

(2) Prior to the implementation of authoritative guidance in 2020, the noncredit component of impairment losses on fixed maturities, available-for-sale was included as a separate component of stockholders’ equity.

Noncontrolling Interest

Interests held by unaffiliated parties in consolidated entities are reflected in noncontrolling interest, which represents the noncontrolling partners’ share of the underlying net assets of our consolidated subsidiaries. Noncontrolling interest that is not redeemable is reported in the equity section of the consolidated statements of financial position.

The noncontrolling interest holders in certain of our consolidated entities maintain an equity interest that is redeemable at the option of the holder, which may be exercised on varying dates. Since redemption of the noncontrolling interest is outside of our control, this interest is excluded from stockholders’ equity and reported separately as redeemable noncontrolling interest on the consolidated statements of financial position. Our redeemable noncontrolling interest primarily relates to consolidated sponsored investment funds for which interests are redeemed at fair value from the net assets of the funds.

For our redeemable noncontrolling interest related to other consolidated subsidiaries, redemptions are required to be purchased at fair value or a value based on a formula that management intended to reasonably approximate fair value based on a fixed multiple of earnings over a measurement period. The carrying value of the redeemable noncontrolling interest is compared to the redemption value at each reporting period. Any adjustments to the carrying amount of the redeemable noncontrolling interest for changes in redemption value prior to exercise of the redemption option are determined after the attribution of net income or loss of the subsidiary and are recognized in the redemption value as they occur. Adjustments to the carrying value of redeemable noncontrolling interest result in adjustments to additional paid-in capital and/or retained earnings. Adjustments are recorded in retained earnings to the extent the redemption value of the redeemable noncontrolling interest exceeds its fair value and will impact the numerator in our earnings per share calculations. All other adjustments to the redeemable noncontrolling interest are recorded in additional paid-in capital.

Following is a reconciliation of the changes in the redeemable noncontrolling interest (in millions):

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Balance at beginning of period	$	330.6	$	272.7	$	255.6	$	264.9
Net income (loss) attributable to redeemable noncontrolling interest		2.7		(1.5)		9.5		(9.5)
Redeemable noncontrolling interest of deconsolidated entities		(37.4)		(47.3)		(37.4)		(47.3)
Contributions from redeemable noncontrolling interest		60.2		49.7		148.2		124.3
Distributions to redeemable noncontrolling interest		(11.7)		(6.0)		(34.8)		(53.8)
Purchase of subsidiary shares from redeemable noncontrolling interest (1)		(0.7)		—		(6.1)		—
Change in redemption value of redeemable noncontrolling interest		—		1.7		8.6		(0.2)
Stock-based compensation attributable to redeemable noncontrolling interest		—		0.1		—		0.1
Other comprehensive income (loss) attributable to redeemable noncontrolling interest		(0.4)		9.1		(0.3)		—
Balance at end of period	$	343.3	$	278.5	$	343.3	$	278.5

(1) In second quarter 2021, we acquired the remaining interest in Principal Innovations, Inc. and its wholly owned subsidiary, RobustWealth, Inc.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2021

Fair Value Measurements

Fair Value Measurements

10. Fair Value Measurements

We use fair value measurements to record fair value of certain assets and liabilities and to estimate fair value of financial instruments not recorded at fair value but required to be disclosed at fair value. Certain financial instruments, particularly policyholder liabilities other than investment contracts, are excluded from these fair value disclosure requirements.

Valuation Hierarchy

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three levels. The level in the fair value hierarchy within which the fair value measurement in its entirety falls is determined based on the lowest level input that is significant to the fair value measurement in its entirety considering factors specific to the asset or liability.

● Level 1 – Fair values are based on unadjusted quoted prices in active markets for identical assets or liabilities.

● Level 2 – Fair values are based on inputs other than quoted prices within Level 1 that are observable for the asset or liability, either directly or indirectly.

● Level 3 – Fair values are based on at least one significant unobservable input for the asset or liability.

Determination of Fair Value

The following discussion describes the valuation methodologies and inputs used for assets and liabilities measured at fair value on a recurring basis. The techniques utilized in estimating the fair value of financial instruments are reliant on the assumptions used. Care should be exercised in deriving conclusions about our business, its value or financial position based on the fair value information of financial instruments presented below.

Fair value estimates are made based on available market information and judgments about the financial instrument at a specific point in time. Such estimates do not consider the tax impact of the realization of unrealized gains or losses. In addition, the disclosed fair value may not be realized in the immediate settlement of the financial instrument. We validate prices through an investment analyst review process, which includes validation through direct interaction with external sources, review of recent trade activity or use of internal models. In circumstances where broker quotes are used to value an instrument, we generally receive one non-binding quote. Broker quotes are validated through an investment analyst review process, which includes validation through direct interaction with external sources and use of internal models or other relevant information. We did not make any significant changes to our valuation processes during 2021.

Fixed Maturities

Fixed maturities include bonds, ABS, redeemable preferred stock and certain non-redeemable preferred securities. When available, the fair value of fixed maturities is based on quoted prices of identical assets in active markets. These are reflected in Level 1 and primarily include U.S. Treasury bonds and actively traded redeemable corporate preferred securities.

When quoted prices of identical assets in active markets are not available, our first priority is to obtain prices from third party pricing vendors. We have regular interaction with these vendors to ensure we understand their pricing methodologies and to confirm they are utilizing observable market information. Their methodologies vary by asset class and include inputs such as estimated cash flows, benchmark yields, reported trades, broker quotes, credit quality, industry events and economic events. Fixed maturities with validated prices from pricing services, which includes the majority of our public fixed maturities in all asset classes, are generally reflected in Level 2. Also included in Level 2 are corporate bonds when quoted market prices are not available, for which an internal model using substantially all observable inputs or a matrix pricing valuation approach is used. In the matrix approach, securities are grouped into pricing categories that vary by sector, rating and average life. Each pricing category is assigned a risk spread based on studies of observable public market data from the investment professionals assigned to specific security classes. The expected cash flows of the security are then discounted back at the current Treasury curve plus the appropriate risk spread. Although the matrix valuation approach provides a fair valuation of each pricing category, the valuation of an individual security within each pricing category may also be impacted by company specific factors.

If we are unable to price a fixed maturity security using prices from third party pricing vendors or other sources specific to the asset class, we may obtain a broker quote or utilize an internal pricing model specific to the asset utilizing relevant market information, to the extent available and where at least one significant unobservable input is utilized. These are reflected in Level 3 in the fair value hierarchy and can include fixed maturities across all asset classes. As of September 30, 2021, 1% of our total fixed maturities were Level 3 securities valued using internal pricing models.

The primary inputs, by asset class, for valuations of the majority of our Level 2 investments from third party pricing vendors or our internal pricing valuation approach are described below.

U.S. Government and Agencies/Non-U.S. Governments. Inputs include recently executed market transactions, interest rate yield curves, maturity dates, market price quotations and credit spreads relating to similar instruments.

States and Political Subdivisions. Inputs include Municipal Securities Rulemaking Board reported trades, U.S. Treasury and other benchmark curves, material event notices, new issue data and obligor credit ratings.

Corporate. Inputs include recently executed transactions, market price quotations, benchmark yields, issuer spreads and observations of equity and credit default swap curves related to the issuer. For private placement corporate securities valued through the matrix valuation approach inputs include the current Treasury curve and risk spreads based on sector, rating and average life of the issuance.

RMBS, CMBS, Collateralized Debt Obligations and Other Debt Obligations. Inputs include cash flows, priority of the tranche in the capital structure, expected time to maturity for the specific tranche, reinvestment period remaining and performance of the underlying collateral including prepayments, defaults, deferrals, loss severity of defaulted collateral and, for RMBS, prepayment speed assumptions. Other inputs include market indices and recently executed market transactions.

Equity Securities

Equity securities include mutual funds, common stock, non-redeemable preferred stock and required regulatory investments. Fair values of equity securities are determined using quoted prices in active markets for identical assets when available, which are reflected in Level 1. When quoted prices are not available, we may utilize internal valuation methodologies appropriate for the specific asset that use observable inputs such as underlying share prices or the net asset value (“NAV”), which are reflected in Level 2. Fair values might also be determined using broker quotes or through the use of internal models or analysis that incorporate significant assumptions deemed appropriate given the circumstances and consistent with what other market participants would use when pricing such securities, which are reflected in Level 3.

Derivatives

The fair values of exchange-traded derivatives are determined through quoted market prices, which are reflected in Level 1. Exchange-traded derivatives include futures that are settled daily, which reduces their fair value in the consolidated statements of financial position. The fair values of OTC cleared derivatives are determined through market prices published by the clearinghouses, which are reflected in Level 2. The clearinghouses utilize the secured overnight financing rate curve in their valuation. Variation margin associated with OTC cleared derivatives is settled daily, which reduces their fair value in the consolidated statements of financial position. The fair values of bilateral OTC derivative instruments are determined using either pricing valuation models that utilize market observable inputs or broker quotes. The majority of our bilateral OTC derivatives are valued with models that use market observable inputs, which are reflected in Level 2. Significant inputs include contractual terms, interest rates, currency exchange rates, credit spread curves, equity prices and volatilities. These valuation models consider projected discounted cash flows, relevant swap curves and appropriate implied volatilities. Certain bilateral OTC derivatives utilize unobservable market data, primarily independent broker quotes that are nonbinding quotes based on models that do not reflect the result of market transactions, which are reflected in Level 3.

Our non-cleared derivative contracts are generally documented under ISDA Master Agreements, which provide for legally enforceable set-off and close-out netting of exposures to specific counterparties. Collateral arrangements are bilateral and based on current ratings of each entity. We utilize the LIBOR interest rate curve to value our positions, which includes a credit spread. This credit spread incorporates an appropriate level of nonperformance risk into our valuations given the current ratings of our counterparties, as well as the collateral agreements in place. Counterparty credit risk is routinely monitored to ensure our adjustment for nonperformance risk is appropriate. Our centrally cleared derivative contracts are conducted with regulated centralized clearinghouses, which provide for daily exchange of cash collateral or variation margin equal to the difference in the daily market values of those contracts that eliminates the nonperformance risk on these trades.

Interest Rate Contracts. For non-cleared contracts we use discounted cash flow valuation techniques for interest rate swaps and have used for swaptions to determine the fair value using observable swap curves as the inputs. These are reflected in Level 2. We have forward contracts for which we obtain prices from third party pricing vendors. These are reflected in Level 2. For centrally cleared contracts we use published prices from clearinghouses. These are reflected in Level 2. In addition, we had interest rate options that were valued using broker quotes. These were reflected in Level 3.

Foreign Exchange Contracts. We use discounted cash flow valuation techniques that utilize observable swap curves and exchange rates as the inputs to determine the fair value of foreign currency swaps. These are reflected in Level 2. Currency forwards and currency options are valued using observable market inputs, including forward currency exchange rates. These are reflected in Level 2. In addition, we have had a limited number of non-standard currency swaps that are valued using broker quotes. These were reflected within Level 3.

Equity Contracts. We use an option pricing model using observable implied volatilities, dividend yields, index prices and swap curves as the inputs to determine the fair value of equity options. These are reflected in Level 2.

Credit Contracts. We use either the ISDA Credit Default Swap Standard discounted cash flow model that utilizes observable default probabilities and recovery rates as inputs to determine the fair value of credit default swaps. These are reflected in Level 2. In addition, we have a limited number of credit default swaps that are valued using broker quotes. These are reflected within Level 3.

Other Investments

Other investments reported at fair value include invested assets of consolidated sponsored investment funds, unconsolidated sponsored investment funds, other investment funds reported at fair value, equity method real estate investments for which the fair value option was elected and certain nonredeemable preferred stock.

Invested assets of consolidated sponsored investment funds include equity securities, fixed maturities and derivative assets, for which fair values are determined as previously described, and are reflected in Level 1 and Level 2.

The fair value of unconsolidated sponsored investment funds and other investment funds is determined using the NAV of the fund. The NAV of the fund represents the price at which we would be able to initiate a transaction. Investments for which the NAV represents a quoted price in an active market for identical assets are reflected in Level 1. Investments that do not have a quoted price in an active market are reflected in Level 2.

Equity method real estate investments for which the fair value option was elected were reflected in Level 3. The equity method real estate investments consisted of underlying real estate and debt. The real estate fair value was estimated using a discounted cash flow valuation model that utilized public real estate market data inputs such as transaction prices, market rents, vacancy levels, leasing absorption, market cap rates and discount rates. The debt fair value was estimated using a discounted cash flow analysis based on our incremental borrowing rate for similar borrowing arrangements. The last equity method real estate investment for which the fair value option was elected was sold in the third quarter of 2021.

The fair value of certain redeemable and nonredeemable preferred stock is based on an internal model using unobservable inputs, which is reflected in Level 3. The redeemable preferred stock was sold in the third quarter of 2020.

Cash Equivalents

Certain cash equivalents are reported at fair value on a recurring basis and include money market instruments and other short-term investments with maturities of three months or less. Fair values of these cash equivalents may be determined using public quotations, when available, which are reflected in Level 1. When public quotations are not available, because of the highly liquid nature of these assets, carrying amounts may be used to approximate fair values, which are reflected in Level 2.

Separate Account Assets

Separate account assets include equity securities, debt securities, cash equivalents and derivative instruments, for which fair values are determined as previously described, and are reflected in Level 1, Level 2 and Level 3. Separate account assets also include commercial mortgage loans, for which the fair value is estimated by discounting the expected total cash flows using market rates that are applicable to the yield, credit quality and maturity of the loans. The market clearing spreads vary based on mortgage type, weighted average life, rating and liquidity. These are reflected in Level 3. Finally, separate account assets include real estate, for which the fair value is estimated using discounted cash flow valuation models that utilize various public real estate market data inputs. In addition, each property is appraised annually by an independent appraiser. The real estate included in separate account assets is recorded net of related mortgage encumbrances for which the fair value is estimated using discounted cash flow analysis based on our incremental borrowing rate for similar borrowing arrangements. The real estate within the separate accounts is reflected in Level 3.

Investment and Universal Life Contracts

Certain universal life, annuity and other investment contracts include embedded derivatives that have been bifurcated from the host contract and are measured at fair value on a recurring basis, which are reflected in Level 3. The key assumptions for calculating the fair value of the embedded derivative liabilities are market assumptions (such as equity market returns, interest rate levels, market volatility and correlations) and policyholder behavior assumptions (such as lapse, mortality, utilization and withdrawal patterns). Risk margins are included in the policyholder behavior assumptions. The assumptions are based on a combination of historical data and actuarial judgment. The embedded derivative liabilities are valued using models that incorporate a spread reflecting our own creditworthiness.

The assumption for our own nonperformance risk for investment contracts and any embedded derivatives bifurcated from certain universal life, annuity and investment contracts is based on the current market credit spreads for debt-like instruments we have issued and are available in the market.

Other Liabilities

Derivative liabilities of consolidated sponsored investment funds are reported at fair value within other liabilities. Fair values of these derivatives are determined as previously described and are reflected in Level 2.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Assets and liabilities measured at fair value on a recurring basis were as follows:

	September 30, 2021
	Assets/		Amount
	(liabilities)		measured at
	measured at		net asset		Fair value hierarchy level
	fair value		value (4)		Level 1		Level 2		Level 3
	(in millions)
Assets
Fixed maturities, available-for-sale:
U.S. government and agencies	$	1,921.8	$	—	$	1,606.0	$	315.8	$	—
Non-U.S. governments		1,044.8		—		1.0		1,043.8		—
States and political subdivisions		9,233.0		—		—		9,233.0		—
Corporate		45,544.9		—		41.6		44,697.5		805.8
Residential mortgage-backed pass-through securities		2,882.6		—		—		2,882.6		—
Commercial mortgage-backed securities		5,283.2		—		—		5,269.0		14.2
Collateralized debt obligations (1)		3,566.3		—		—		3,515.9		50.4
Other debt obligations		7,080.5		—		—		7,058.3		22.2
Total fixed maturities, available-for-sale		76,557.1		—		1,648.6		74,015.9		892.6
Fixed maturities, trading		413.5		—		0.5		413.0		—
Equity securities		2,428.2		—		1,089.9		1,338.3		—
Derivative assets (2)		328.1		—		—		327.4		0.7
Other investments		784.4		92.6		312.0		377.1		2.7
Cash equivalents		1,786.9		—		65.9		1,721.0		—
Sub-total excluding separate account assets		82,298.2		92.6		3,116.9		78,192.7		896.0
Separate account assets		177,850.5		8,165.2		110,111.4		58,306.6		1,267.3
Total assets	$	260,148.7	$	8,257.8	$	113,228.3	$	136,499.3	$	2,163.3
Liabilities
Investment and universal life contracts (3)	$	(355.3)	$	—	$	—	$	—	$	(355.3)
Derivative liabilities (2)		(242.9)		—		—		(242.2)		(0.7)
Other liabilities		(1.8)		—		—		(1.8)		—
Total liabilities	$	(600.0)	$	—	$	—	$	(244.0)	$	(356.0)
Net assets	$	259,548.7	$	8,257.8	$	113,228.3	$	136,255.3	$	1,807.3

	December 31, 2020
	Assets/		Amount
	(liabilities)		measured at
	measured at		net asset		Fair value hierarchy level
	fair value		value (4)		Level 1		Level 2		Level 3
	(in millions)
Assets
Fixed maturities, available-for-sale:
U.S. government and agencies	$	2,111.5	$	—	$	1,768.3	$	343.2	$	—
Non-U.S. governments		1,073.7		—		1.1		1,072.6		—
States and political subdivisions		9,167.8		—		—		9,167.8		—
Corporate		47,354.8		—		—		47,064.0		290.8
Residential mortgage-backed pass-through securities		2,986.8		—		—		2,986.8		—
Commercial mortgage-backed securities		4,942.3		—		—		4,929.1		13.2
Collateralized debt obligations (1)		4,027.5		—		—		4,000.3		27.2
Other debt obligations		7,045.9		—		—		7,016.7		29.2
Total fixed maturities, available-for-sale		78,710.3		—		1,769.4		76,580.5		360.4
Fixed maturities, trading		532.1		—		0.5		531.6		—
Equity securities		2,013.4		—		659.7		1,353.7		—
Derivative assets (2)		463.5		—		—		462.9		0.6
Other investments		746.3		75.7		252.8		385.9		31.9
Cash equivalents		1,466.4		—		38.3		1,428.1		—
Sub-total excluding separate account assets		83,932.0		75.7		2,720.7		80,742.7		392.9
Separate account assets		175,951.4		155.8		102,550.5		64,351.9		8,893.2
Total assets	$	259,883.4	$	231.5	$	105,271.2	$	145,094.6	$	9,286.1
Liabilities
Investment and universal life contracts (3)	$	(467.8)	$	—	$	—	$	—	$	(467.8)
Derivative liabilities (2)		(186.1)		—		—		(180.4)		(5.7)
Other liabilities		(0.4)		—		—		(0.4)		—
Total liabilities	$	(654.3)	$	—	$	—	$	(180.8)	$	(473.5)
Net assets	$	259,229.1	$	231.5	$	105,271.2	$	144,913.8	$	8,812.6

(1) Primarily consists of collateralized loan obligations backed by secured corporate loans.

(2) Within the consolidated statements of financial position, derivative assets are reported with other investments and derivative liabilities are reported with other liabilities. The amounts are presented gross in the tables above to reflect the presentation on the consolidated statements of financial position; however, are presented net for purposes of the rollforward in the Changes in Level 3 Fair Value Measurements tables. Refer to Note 4, Derivative Financial Instruments, for further information on fair value by class of derivative instruments.

(3) Includes bifurcated embedded derivatives that are reported at net asset (liability) fair value within the same line item in the consolidated statements of financial position in which the host contract is reported.

(4) Certain investments are measured at fair value using the NAV per share (or its equivalent) practical expedient and have not been classified in the fair value hierarchy. Other investments using the NAV practical expedient consist of certain fund interests that are restricted until maturity with unfunded commitments totaling $10.8 million and $15.1 million as of September 30, 2021 and December 31, 2020, respectively. Separate account assets using the NAV practical expedient consist of hedge funds and a real estate fund with varying investment strategies that also have a variety of redemption terms and conditions. We do not have unfunded commitments associated with these funds.

Changes in Level 3 Fair Value Measurements

The reconciliation for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) was as follows:

	For the three months ended September 30, 2021
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	July 1,		net income		comprehensive		settlements		into		out of		September 30,
	2021		(2)		income (3)		(4)		Level 3		Level 3		2021
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	549.0	$	(7.8)	$	10.5	$	229.0	$	25.1	$	—	$	805.8
Commercial mortgage-backed securities		11.6		—		(0.1)		2.7		—		—		14.2
Collateralized debt obligations		195.6		—		—		27.6		—		(172.8)		50.4
Other debt obligations		61.4		—		(0.2)		(14.0)		—		(25.0)		22.2
Total fixed maturities, available-for-sale		817.6		(7.8)		10.2		245.3		25.1		(197.8)		892.6
Other investments		44.5		(0.1)		(0.6)		(41.1)		—		—		2.7
Separate account assets (1)		1,217.4		71.0		—		(21.1)		—		—		1,267.3
Liabilities
Investment and universal life contracts		(281.6)		(80.4)		0.1		6.6		—		—		(355.3)
Derivatives
Net derivative assets (liabilities)		(8.9)		(1.8)		—		10.7		—		—		—

	For the three months ended September 30, 2020
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	July 1,		net income		comprehensive		settlements		into		out of		September 30,
	2020		(2)		income (3)		(4)		Level 3		Level 3		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	275.0	$	(1.0)	$	4.3	$	27.5	$	—	$	(24.5)	$	281.3
Commercial mortgage-backed securities		13.1		(0.4)		—		—		0.3		—		13.0
Collateralized debt obligations		2.8		(0.9)		0.4		16.1		—		—		18.4
Other debt obligations		71.2		—		(0.2)		(35.1)		—		(6.8)		29.1
Total fixed maturities, available-for-sale		362.1		(2.3)		4.5		8.5		0.3		(31.3)		341.8
Other investments		38.7		2.7		—		(11.0)		—		—		30.4
Separate account assets (1)		8,821.3		72.3		—		(38.4)		—		—		8,855.2
Liabilities
Investment and universal life contracts		(576.0)		23.2		—		0.4		—		—		(552.4)
Derivatives
Net derivative assets (liabilities)		(14.2)		4.7		—		(0.9)		—		—		(10.4)

	For the nine months ended September 30, 2021
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	January 1,		net income		comprehensive		settlements		into		out of		September 30,
	2021		(2)		income (3)		(4)		Level 3		Level 3		2021
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	290.8	$	(12.7)	$	5.8	$	354.3	$	167.6	$	—	$	805.8
Commercial mortgage-backed securities		13.2		(1.0)		(0.6)		2.6		—		—		14.2
Collateralized debt obligations		27.2		(2.0)		1.8		337.5		84.1		(398.2)		50.4
Other debt obligations		29.2		—		0.6		(3.2)		20.6		(25.0)		22.2
Total fixed maturities, available-for-sale		360.4		(15.7)		7.6		691.2		272.3		(423.2)		892.6
Other investments		31.9		12.5		(0.6)		(41.1)		—		—		2.7
Separate account assets (1)		8,893.2		215.6		—		(7,841.5)		—		—		1,267.3
Liabilities
Investment and universal life contracts		(467.8)		89.3		0.2		23.0		—		—		(355.3)
Derivatives
Net derivative assets (liabilities)		(5.1)		(6.2)		—		11.3		—		—		—

	For the nine months ended September 30, 2020
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	January 1,		net income		comprehensive		settlements		into		out of		September 30,
	2020		(2)		income (3)		(4)		Level 3		Level 3		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	81.7	$	(1.0)	$	(6.3)	$	38.3	$	342.0	$	(173.4)	$	281.3
Commercial mortgage-backed securities		12.9		(1.3)		1.1		—		0.3		—		13.0
Collateralized debt obligations		199.0		(1.9)		(22.2)		158.1		—		(314.6)		18.4
Other debt obligations		91.3		—		(1.6)		(37.8)		46.1		(68.9)		29.1
Total fixed maturities, available-for-sale		384.9		(4.2)		(29.0)		158.6		388.4		(556.9)		341.8
Fixed maturities, trading		0.3		—		—		—		—		(0.3)		—
Other investments		39.0		5.0		(2.9)		(10.7)		—		—		30.4
Separate account assets (1)		8,968.0		225.4		—		(338.2)		—		—		8,855.2
Liabilities
Investment and universal life contracts		(214.2)		(335.5)		(0.3)		(2.4)		—		—		(552.4)
Derivatives
Net derivative assets (liabilities)		13.0		6.5		—		(3.4)		—		(26.5)		(10.4)

(1) Gains and losses for separate account assets do not impact net income as the change in value of separate account assets is offset by a change in value of separate account liabilities. Foreign currency translation adjustments related to the Principal International segment separate account assets are recorded in AOCI and are offset by foreign currency translation adjustments of the corresponding separate account liabilities.

(2) Both realized gains (losses) and mark-to-market unrealized gains (losses) are generally reported in net realized capital gains (losses) within the consolidated statements of operations. Realized and unrealized gains (losses) on certain securities with an investment objective to realize economic value through mark-to-market changes are reported in net investment income within the consolidated statements of operations. Changes in unrealized gains (losses) included in net income relating to positions still held were:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	(7.8)	$	—	$	(12.6)	$	—
Commercial mortgage-backed securities		—		(0.4)		—		(1.3)
Collateralized debt obligations		—		(0.9)		(2.0)		(1.9)
Total fixed maturities, available-for-sale		(7.8)		(1.3)		(14.6)		(3.2)
Other investments		(0.1)		1.7		12.6		4.0
Separate account assets		71.5		72.3		215.6		211.2
Liabilities
Investment and universal life contracts		(76.4)		29.4		86.1		(344.8)
Derivatives
Net derivative assets (liabilities)		(0.7)		4.6		(0.6)		5.2

(3) Changes in unrealized gains (losses) included in OCI, including foreign currency translation adjustments related to our Principal International segment, relating to positions still held were:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	10.6	$	3.6	$	4.4	$	(2.1)
Commercial mortgage-backed securities		(0.2)		—		(0.6)		1.1
Collateralized debt obligations		—		0.3		2.1		(0.6)
Total fixed maturities, available-for-sale		10.4		3.9		5.9		(1.6)
Other investments		(0.6)		—		(0.6)		(2.9)
Liabilities
Investment and universal life contracts		0.1		—		0.2		(0.3)

(4) Gross purchases, sales, issuances and settlements were:

	For the three months ended September 30, 2021
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	268.5	$	(3.4)	$	—	$	(36.1)	$	229.0
Commercial mortgage-backed securities		2.7		—		—		—		2.7
Collateralized debt obligations		27.6		—		—		—		27.6
Other debt obligations		—		—		—		(14.0)		(14.0)
Total fixed maturities, available-for-sale		298.8		(3.4)		—		(50.1)		245.3
Other investments		—		(41.1)		—		—		(41.1)
Separate account assets (5)		—		(2.0)		(34.4)		15.3		(21.1)
Liabilities
Investment and universal life contracts		—		—		(3.5)		10.1		6.6
Derivatives
Net derivative assets (liabilities)		—		10.7		—		—		10.7

	For the three months ended September 30, 2020
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	42.6	$	(4.4)	$	—	$	(10.7)	$	27.5
Collateralized debt obligations		16.0		—		—		0.1		16.1
Other debt obligations		—		—		—		(35.1)		(35.1)
Total fixed maturities, available-for-sale		58.6		(4.4)		—		(45.7)		8.5
Other investments		—		(11.0)		—		—		(11.0)
Separate account assets (5)		4.2		(0.2)		(42.2)		(0.2)		(38.4)
Liabilities
Investment and universal life contracts		—		—		(6.3)		6.7		0.4
Derivatives
Net derivative assets (liabilities)		—		(0.9)		—		—		(0.9)

	For the nine months ended September 30, 2021
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	469.3	$	(14.3)	$	—	$	(100.7)	$	354.3
Commercial mortgage-backed securities		2.7		—		—		(0.1)		2.6
Collateralized debt obligations		362.0		—		—		(24.5)		337.5
Other debt obligations		25.1		—		—		(28.3)		(3.2)
Total fixed maturities, available-for-sale		859.1		(14.3)		—		(153.6)		691.2
Other investments		—		(41.1)		—		—		(41.1)
Separate account assets (5)		36.7		(7,795.2)		(175.4)		92.4		(7,841.5)
Liabilities
Investment and universal life contracts		—		—		(11.7)		34.7		23.0
Derivatives
Net derivative assets (liabilities)		—		11.3		—		—		11.3

	For the nine months ended September 30, 2020
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	77.5	$	(5.4)	$	—	$	(33.8)	$	38.3
Collateralized debt obligations		157.8		—		—		0.3		158.1
Other debt obligations		14.3		—		—		(52.1)		(37.8)
Total fixed maturities, available-for-sale		249.6		(5.4)		—		(85.6)		158.6
Other investments		0.3		(11.0)		—		—		(10.7)
Separate account assets (5)		72.2		(185.8)		(269.0)		44.4		(338.2)
Liabilities
Investment and universal life contracts		—		—		(18.5)		16.1		(2.4)
Derivatives
Net derivative assets (liabilities)		—		(3.4)		—		—		(3.4)

(5) Issuances and settlements include amounts related to mortgage encumbrances associated with real estate in our separate accounts.

Transfers

Transfers of assets and liabilities measured at fair value on a recurring basis between fair value hierarchy levels were as follows:

	For the three months ended September 30, 2021
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	25.1	$	—	$	—
Collateralized debt obligations		—		—		—		172.8
Other debt obligations		—		—		—		25.0
Total fixed maturities, available-for-sale		—		25.1		—		197.8

	For the three months ended September 30, 2020
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	—	$	—	$	24.5
Commercial mortgage-backed securities		—		0.3		—		—
Other debt obligations		—		—		—		6.8
Total fixed maturities, available-for-sale		—		0.3		—		31.3

	For the nine months ended September 30, 2021
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	167.6	$	—	$	—
Collateralized debt obligations		—		84.1		—		398.2
Other debt obligations		—		20.6		—		25.0
Total fixed maturities, available-for-sale		—		272.3		—		423.2

	For the nine months ended September 30, 2020
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	342.0	$	—	$	173.4
Commercial mortgage-backed securities		—		0.3		—		—
Collateralized debt obligations		—		—		—		314.6
Other debt obligations		—		46.1		—		68.9
Total fixed maturities, available-for-sale		—		388.4		—		556.9
Fixed maturities, trading		—		—		—		0.3
Derivatives
Net derivative assets (liabilities)		—		—		—		26.5

Assets transferred into Level 3 during the three and nine months ended September 30, 2021 and 2020, primarily included those assets for which we are now unable to obtain pricing from a recognized third party pricing vendor as well as assets that were previously priced using a matrix valuation approach that may no longer be relevant when applied to asset-specific situations.

Assets transferred out of Level 3 during the three and nine months ended September 30, 2021 and 2020, primarily included those assets for which we are now able to obtain pricing from a recognized third party pricing vendor or from internal models using substantially all market observable information.

Quantitative Information about Level 3 Fair Value Measurements

The following table provides quantitative information about the significant unobservable inputs used for recurring fair value measurements categorized within Level 3, excluding assets and liabilities for which significant quantitative unobservable inputs are not developed internally, which primarily consists of those valued using broker quotes. Refer to “Assets and liabilities measured at fair value on a recurring basis” for a complete valuation hierarchy summary.

	September 30, 2021
	Assets /
	(liabilities)
	measured at		Valuation	Unobservable	Input/range of				Weighted
	fair value		technique(s)	input description	inputs				average
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	746.9	Discounted cash flow	Discount rate (1)	0.7	%   -	18.6	%	7.0	%
				Illiquidity premium	0	basis points (“bps”)-	70	bps	7	bps
				Potential loss severity			16.4	%	16.4	%
				Probability of default			100.0	%	100.0	%
Commercial mortgage-backed securities		2.7	Discounted cash flow	Discount rate (1)			3.9	%	3.9	%
Collateralized debt obligations		1.0	Discounted cash flow	Discount rate (1)			3.0	%	3.0	%
				Illiquidity premium			291	bps	291	bps
Other debt obligations		22.2	Discounted cash flow	Discount rate (1)	2.5	%   -	10.0	%	2.8	%
				Illiquidity premium	225	bps-	500	bps	235	bps
Other investments		1.3	Market comparables - other investments	Revenue multiples (2)	6.8	x    -	9.1	x	8.0	x
Separate account assets		1,268.0	Discounted cash flow - mortgage loans	Discount rate (1)			1.2	%	1.2	%
				Illiquidity premium			60	bps	60	bps
				Credit spread rate			109	bps	109	bps
			Discounted cash flow - real estate	Discount rate (1)	5.5	%   -	11.9	%	7.5	%
				Terminal capitalization rate	4.5	%   -	9.3	%	5.9	%
				Average market rent growth rate	1.5	%   -	3.6	%	2.8	%
			Discounted cash flow - real estate debt	Loan to value	29.0	%   -	60.2	%	43.6	%
				Market interest rate	2.3	%   -	4.5	%	2.8	%

Liabilities
Investment and universal life contracts (6)	(355.3)	Discounted cash flow	Long duration interest rate	1.9	%   -	2.1	%	(3)	2.0%
			Long-term equity market volatility	17.9	%   -	32.0	%		22.1%
			Nonperformance risk	0.2	%   -	1.0	%		0.8%
			Utilization rate	See note (4)
			Lapse rate	0.0	%   -	17.0	%		5.1%
			Mortality rate	See note (5)

	December 31, 2020
	Assets /
	(liabilities)
	measured at		Valuation	Unobservable	Input/range of					Weighted
	fair value		technique(s)	input description	inputs					average
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	286.1	Discounted cash flow	Discount rate (1)		0.9	%   -	11.7	%	7.3	%
				Illiquidity premium		0	bps-	60	bps	19	bps
				Comparability adjustment		0	bps-	769	bps	359	bps
				Potential loss severity				54.6	%	54.6	%
				Probability of default				100.0	%	100.0	%
Commercial mortgage-backed securities		1.1	Discounted cash flow	Probability of default				100.0	%	100.0	%
				Potential loss severity				78.4	%	78.4	%
Collateralized debt obligations		0.7	Discounted cash flow	Potential loss severity				40.5	%	40.5	%
				Probability of default				100.0	%	100.0	%
Other debt obligations		0.8	Discounted cash flow	Discount rate (1)				10.0	%	10.0	%
				Illiquidity premium				500	bps	500	bps
Other investments		30.4	Discounted cash flow - other investments	Discount rate (1)		25.0	%   -	30.0	%	27.5	%
				Terminal earnings before interest, taxes, depreciation and amortization multiple		3.8	x    -	4.7	x	4.2	x
			Market comparables - other investments	Revenue multiples (2)		6.0	x    -	8.0	x	7.0	x
			Discounted cash flow - real estate	Discount rate (1)				6.5	%	6.5	%
				Terminal capitalization rate				5.3	%	5.3	%
				Average market rent growth rate				2.6	%	2.6	%
			Discounted cash flow - real estate debt	Loan to value				52.6	%	52.6	%
				Credit spread				3.3	%	3.3	%
Separate account assets		8,893.2	Discounted cash flow - mortgage loans	Discount rate (1)				1.2	%	1.2	%
				Illiquidity premium				60	bps	60	bps
				Credit spread rate				110	bps	110	bps
			Discounted cash flow - real estate	Discount rate (1)		5.6	%   -	11.9	%	6.9	%
				Terminal capitalization rate		4.5	%   -	9.3	%	5.7	%
				Average market rent growth rate		1.5	%   -	4.8	%	3.0	%
			Discounted cash flow - real estate debt	Loan to value		6.3	%   -	74.2	%	47.5	%
				Market interest rate		2.0	%   -	5.0	%	3.4	%

	December 31, 2020
	Assets /
	(liabilities)
	measured at		Valuation	Unobservable	Input/range of					Weighted
	fair value		technique(s)	input description	inputs					average
	(in millions)
Liabilities
Investment and universal life contracts (6)		(467.8)	Discounted cash flow	Long duration interest rate		1.2	%   -	1.4	% (3)	1.3	%
				Long-term equity market volatility		17.6	%   -	26.9	%	19.6	%
				Nonperformance risk		0.1	%   -	1.4	%	0.9	%
				Utilization rate		See note (4)
				Lapse rate		0.0	%   -	16.0	%	5.8	%
				Mortality rate		See note (5)

(1) Represents market comparable interest rate or an index adjusted rate used as the base rate in the discounted cash flow analysis prior to any illiquidity or other adjustments, where applicable.

(2) Revenue multiples are amounts used when we have determined market participants would use such multiples to value the investments.

(3) Represents the range of rate curves used in the valuation analysis that we have determined market participants would use when pricing the instrument. Derived from interpolation between various observable swap rates.

(4) This input factor is the number of contractholders taking withdrawals as well as the amount and timing of the withdrawals and a range does not provide a meaningful presentation.

(5) This input is based on an appropriate industry mortality table and a range does not provide a meaningful presentation.

(6) Includes bifurcated embedded derivatives that are reported at net asset (liability) fair value within the same line item in the consolidated statements of financial position in which the host contract is reported.

Market comparable discount rates are used as the base rate in the discounted cash flows used to determine the fair value of certain assets. The use of a higher or lower discount rate would have caused the fair value of the assets to significantly decrease or increase, respectively. Additionally, we may adjust the base discount rate or the modeled price by applying an illiquidity premium given the highly structured nature of certain assets. The use of a higher or lower illiquidity premium would have caused significant decreases or increases, respectively, in the fair value of the asset.

Embedded derivatives within our investment and universal life contracts liability can be in either an asset or liability position, depending on certain inputs at the reporting date. Increases to an asset or decreases to a liability are described as increases to fair value. The use of a higher or lower market volatility would have caused significant decreases or increases, respectively, in the fair value of embedded derivatives in investment and universal life contracts. Long duration interest rates are used as the mean return when projecting the growth in the value of associated account value and impact the discount rate used in the discounted future cash flows valuation. The amount of claims will increase if account value is not sufficient to cover guaranteed withdrawals. The use of higher or lower risk-free rates would have caused the fair value of the embedded derivative to significantly increase or decrease, respectively. The use of a higher or lower rate for our own credit risks, which impact the rates used to discount future cash flows, would have significantly increased or decreased, respectively, the fair value of the embedded derivative.

The use of a lower or higher mortality rate assumption would have caused the fair value of the embedded derivative to decrease or increase, respectively. The use of a lower or higher overall lapse rate assumption would have caused the fair value of the embedded derivative to decrease or increase, respectively. The lapse rate assumption may vary dynamically based on the relationship of the guarantee and associated account value. A stronger or weaker dynamic lapse rate assumption would have caused the fair value of the embedded derivative to decrease or increase, respectively. The utilization rate assumption includes how many contractholders will take withdrawals, when they will take them and how much of their benefit they will take. The use of a higher or lower assumption of the number of contractholders taking withdrawals would have caused the fair value of the embedded derivative to decrease or increase, respectively. Assuming contractholders take withdrawals earlier or later would have caused the fair value of the embedded derivative to decrease or increase, respectively. Assuming contractholders take more or less of their benefit would have caused the fair value of the embedded derivative to decrease or increase, respectively.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

No significant assets and liabilities were measured at fair value on a nonrecurring basis for the three and nine months ended September 30, 2021 and 2020.

Fair Value Option

We elected fair value accounting for certain real estate ventures that were subject to the equity method of accounting because the nature of the investments was to add value to the properties and generate income from the operations of the properties. Other equity method real estate investments were not fair valued because the investments mainly generated income from the operations of the underlying properties. The last equity method real estate investment for which the fair value option was elected was sold in the third quarter of 2021.

The following tables present information regarding the assets and liabilities for which the fair value option was elected.

	September 30, 2021		December 31, 2020
	(in millions)
Real estate ventures (1)
Fair value	$	—	$	28.5

(1) Reported with other investments in the consolidated statements of financial position.

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in millions)
Real estate ventures
Change in fair value pre-tax gain (1)	$	(0.1)	$	1.7	$	12.6	$	4.0

(1) Reported in net investment income on the consolidated statements of operations.

Financial Instruments Not Reported at Fair Value

The carrying value and estimated fair value of financial instruments not recorded at fair value on a recurring basis but required to be disclosed at fair value were as follows:

	September 30, 2021
					Fair value hierarchy level
	Carrying amount		Fair value		Level 1		Level 2		Level 3
	(in millions)
Assets (liabilities)
Mortgage loans	$	19,426.0	$	20,504.4	$	—	$	—	$	20,504.4
Policy loans		762.1		961.7		—		—		961.7
Other investments		344.7		334.5		—		244.2		90.3
Cash and cash equivalents		1,358.5		1,358.5		1,334.4		24.1		—
Investment contracts		(36,067.9)		(36,717.2)		—		(7,500.2)		(29,217.0)
Short-term debt		(74.3)		(74.3)		—		(74.3)		—
Long-term debt		(4,279.7)		(4,827.7)		—		(4,788.3)		(39.4)
Separate account liabilities		(161,410.9)		(160,362.4)		—		—		(160,362.4)
Bank deposits (1)		(385.3)		(387.8)		—		(387.8)		—
Cash collateral payable		(176.9)		(176.9)		(176.9)		—		—

	December 31, 2020
					Fair value hierarchy level
	Carrying amount		Fair value		Level 1		Level 2		Level 3
	(in millions)
Assets (liabilities)
Mortgage loans	$	17,343.0	$	18,762.6	$	—	$	—	$	18,762.6
Policy loans		784.0		1,037.7		—		—		1,037.7
Other investments		347.2		338.5		—		247.1		91.4
Cash and cash equivalents		1,383.4		1,383.4		1,369.7		13.7		—
Investment contracts		(35,449.9)		(36,738.7)		—		(5,276.9)		(31,461.8)
Short-term debt		(84.7)		(84.7)		—		(84.7)		—
Long-term debt		(4,279.2)		(4,949.9)		—		(4,908.7)		(41.2)
Separate account liabilities		(160,316.4)		(159,129.2)		—		—		(159,129.2)
Bank deposits (1)		(423.5)		(429.7)		—		(429.7)		—
Cash collateral payable		(224.6)		(224.6)		(224.6)		—		—

(1) Excludes deposit liabilities without defined or contractual maturities.

XML

Segment Information

9 Months Ended

Sep. 30, 2021

Segment Information

Segment Information

11. Segment Information

We provide financial products and services through the following segments: Retirement and Income Solutions, Principal Global Investors, Principal International and U.S. Insurance Solutions. In addition, we have a Corporate segment. The segments are managed and reported separately because they provide different products and services, have different strategies or have different markets and distribution channels.

The Retirement and Income Solutions segment provides retirement and related financial products and services primarily to businesses, their employees and other individuals. The segment is organized into Retirement and Income Solutions – Fee, which includes full service accumulation, trust services, individual variable annuities, the pieces of the Institutional Retirement & Trust (“IRT”) business of Wells Fargo Bank, N.A. (“Acquired Business”) that have not yet migrated to Principal (migration of retirement business completed in the second quarter of 2021; remaining migration estimated to be completed in 2022) and acquisition, integration and migration expenses associated with the purchase of the Acquired Business; and Retirement and Income Solutions – Spread, which includes individual fixed annuities, investment only, pension risk transfer and banking services.

The Principal Global Investors segment provides asset management services to our asset accumulation business, our insurance operations, the Corporate segment and third party clients. This segment also includes our mutual fund business.

The Principal International segment has operations in Latin America (Brazil, Chile and Mexico) and Asia (China, Hong Kong Special Administrative Region, India and Southeast Asia). We focus on locations with large middle classes, favorable demographics and growing long-term savings, ideally with voluntary or mandatory pension markets. We entered these locations through acquisitions, start-up operations and joint ventures.

The U.S. Insurance Solutions segment focuses on solutions for small-to-medium sized businesses and their employees. The segment is organized into Specialty Benefits insurance, which provides group dental and vision insurance, individual and group disability insurance, critical illness, accident, group life insurance and non-medical fee-for-service claims administration; and Individual Life insurance, which provides universal life, variable universal life, indexed universal life and traditional life insurance.

Our Corporate segment manages the assets representing capital that has not been allocated to any other segment. Financial results of the Corporate segment primarily reflect our financing activities (including financing costs), income on capital not allocated to other segments, inter-segment eliminations, income tax risks and certain income, expenses and other adjustments not allocated to the segments based on the nature of such items. Results of Principal Securities, Inc. (“PSI”), our retail broker-dealer and registered investment advisor (“RIA”); RobustWealth, Inc. (“RobustWealth”), our financial technology company; and our exited group medical and long-term care insurance businesses are reported in this segment.

Management uses segment pre-tax operating earnings in evaluating performance, which is consistent with the financial results provided to and discussed with securities analysts. We determine segment pre-tax operating earnings by adjusting U.S. GAAP income before income taxes for pre-tax net realized capital gains (losses), as adjusted, pre-tax other adjustments that management believes are not indicative of overall operating trends and certain adjustments related to equity method investments and noncontrolling interest. While these items may be significant components in understanding and assessing the consolidated financial performance, management believes the presentation of pre-tax operating earnings enhances the understanding of our results of operations by highlighting pre-tax earnings attributable to the normal, ongoing operations of the business.

The pre-tax net realized capital gains (losses), as adjusted, excluded from pre-tax operating earnings reflects consolidated U.S. GAAP pre-tax net realized capital gains (losses) excluding the following items that are included in pre-tax operating earnings:

● Periodic settlements and accruals on derivative instruments not designated as hedging instruments,

● Certain market value adjustments of derivatives and embedded derivatives and

● Certain market value adjustments of derivative instruments used to economically hedge embedded derivatives.

Pre-tax net realized capital gains (losses), as adjusted, are further adjusted for:

● Amortization of hedge accounting book value adjustments for certain discontinued hedges,

● Certain hedge accounting market value revenue adjustments,

● Certain market value adjustments to fee revenues,

● Pre-tax net realized capital gains (losses) adjustments related to equity method investments,

● Pre-tax net realized capital gains (losses) adjustments related to sponsored investment funds,

● Recognition of deferred front-end fee revenues for sales charges on retirement and life insurance products and services,

● Related changes in the amortization pattern of DAC and related actuarial balances,

● Certain hedge accounting market value expense adjustments and

● Net realized capital gains (losses) distributed.

Segment operating revenues reflect consolidated U.S. GAAP total revenues excluding:

● Net realized capital gains (losses), except periodic settlements and accruals on derivatives not designated as hedging instruments and certain market value adjustments of derivative instruments used to economically hedge embedded derivatives, and their impact on:

● Amortization of hedge accounting book value adjustments for certain discontinued hedges,

● Certain hedge accounting market value revenue adjustments,

● Certain market value adjustments to fee revenues,

● Pre-tax net realized capital gains (losses) adjustments related to equity method investments,

● Pre-tax net realized capital gains (losses) adjustments related to sponsored investment funds and

● Recognition of deferred front-end fee revenues for sales charges on retirement and life insurance products and services.

● Pre-tax other adjustments and income taxes of equity method investments and

● Pre-tax other adjustments management believes are not indicative of overall operating trends.

The accounting policies of the segments are consistent with the accounting policies for the consolidated financial statements, with the exception of: (1) pension and OPEB cost allocations, (2) certain expenses deemed to benefit the entire organization and (3) income tax allocations. For purposes of determining pre-tax operating earnings, the segments are allocated the service component of pension and other postretirement benefit costs. The Corporate segment reflects the non-service components of pension and other postretirement benefit costs as assumptions are established and funding decisions are managed from a company-wide perspective. Additionally, the Corporate segment reflects expenses that benefit the entire organization for which the segments are not able to influence the spend. This includes expenses such as public company costs, executive management costs, acquisition and disposition costs, among others. The Corporate segment functions to absorb the risk inherent in interpreting and applying tax law. For purposes of determining non-GAAP operating earnings, the segments are allocated tax adjustments consistent with the positions we took on tax returns. The Corporate segment results reflect any differences between the tax returns and the estimated resolution of any disputes.

The following tables summarize select financial information by segment, including operating revenues for our products and services, and reconcile segment totals to those reported in the consolidated financial statements:

	September 30, 2021		December 31, 2020
	(in millions)
Assets:
Retirement and Income Solutions	$	216,039.3	$	207,288.4
Principal Global Investors		2,358.4		2,294.3
Principal International		43,524.9		51,707.6
U.S. Insurance Solutions		32,702.7		31,438.9
Corporate		4,283.1		3,898.5
Total consolidated assets	$	298,908.4	$	296,627.7

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Operating revenues by segment:
Retirement and Income Solutions:
Retirement and Income Solutions – Fee	$	580.9	$	531.6	$	1,723.9	$	1,584.1
Retirement and Income Solutions – Spread		1,072.0		1,048.3		2,823.9		4,081.5
Total Retirement and Income Solutions (1)		1,652.9		1,579.9		4,547.8		5,665.6
Principal Global Investors (2)		465.2		382.8		1,334.1		1,126.5
Principal International		328.1		225.3		942.3		802.2
U.S. Insurance Solutions:
Specialty Benefits insurance		684.4		618.1		2,007.9		1,884.1
Individual Life insurance		505.7		503.3		1,539.1		1,448.8
Eliminations		—		—		(0.1)		(0.1)
Total U.S. Insurance Solutions		1,190.1		1,121.4		3,546.9		3,332.8
Corporate		(14.3)		(17.0)		(21.8)		(24.0)
Total segment operating revenues		3,622.0		3,292.4		10,349.3		10,903.1
Net realized capital gains (losses), net of related revenue adjustments		(188.2)		31.6		(157.0)		105.4
Adjustments related to equity method investments		(10.1)		(13.3)		(20.7)		(31.9)
Total revenues per consolidated statements of operations	$	3,423.7	$	3,310.7	$	10,171.6	$	10,976.6
Pre-tax operating earnings (losses) by segment:
Retirement and Income Solutions	$	243.2	$	281.1	$	811.4	$	700.1
Principal Global Investors		190.1		140.9		515.6		361.0
Principal International		81.0		58.7		203.8		184.0
U.S. Insurance Solutions		151.6		(134.1)		373.4		150.4
Corporate		(97.1)		(69.7)		(273.6)		(244.8)
Total segment pre-tax operating earnings		568.8		276.9		1,630.6		1,150.7
Pre-tax net realized capital gains (losses), as adjusted (3)		(133.5)		9.9		(141.7)		(41.1)
Adjustments related to equity method investments and noncontrolling interest		(7.2)		(11.7)		(14.3)		(7.7)
Income before income taxes per consolidated statements of operations	$	428.1	$	275.1	$	1,474.6	$	1,101.9

(1) Reflects inter-segment revenues of $106.0 million and $87.5 million for the three months ended September 30, 2021 and 2020, respectively, $307.7 million and $249.1 million for the nine months ended September 30, 2021 and 2020, respectively.

(2) Reflects inter-segment revenues of $79.7 million and $65.6 million for the three months ended September 30, 2021 and 2020, respectively, $223.9 million and $200.7 million for the nine months ended September 30, 2021 and 2020, respectively.

(3) Pre-tax net realized capital gains (losses), as adjusted, is derived as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Net realized capital gains (losses):
Net realized capital gains (losses)	$	(152.0)	$	65.5	$	(41.7)	$	169.5
Derivative and hedging-related revenue adjustments		(30.6)		(37.0)		(108.4)		(85.7)
Market value adjustments to fee revenues		(0.2)		—		(0.6)		—
Adjustments related to equity method investments		(10.8)		0.2		(18.3)		(4.9)
Adjustments related to sponsored investment funds		5.8		5.1		15.9		12.5
Recognition of front-end fee revenue		(0.4)		(2.2)		(3.9)		14.0
Net realized capital gains (losses), net of related revenue adjustments		(188.2)		31.6		(157.0)		105.4
Amortization of deferred acquisition costs and other actuarial balances		9.9		62.1		22.8		(67.7)
Capital gains distributed		(33.0)		(43.7)		(86.3)		(15.7)
Market value adjustments of embedded derivatives		77.8		(40.1)		78.8		(63.1)
Pre-tax net realized capital gains (losses), as adjusted (a)	$	(133.5)	$	9.9	$	(141.7)	$	(41.1)

(a) As adjusted before noncontrolling interest capital gains (losses).

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Revenues from Contracts with Customers

9 Months Ended

Sep. 30, 2021

Revenues from Contracts with Customers

Revenues from Contracts with Customers

12. Revenues from Contracts with Customers

The following tables summarize disaggregation of revenues from contracts with customers, including select financial information by segment, and reconcile totals to those reported in the consolidated financial statements. Revenues from contracts with customers are included in fees and other revenues on the consolidated statements of operations.

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Revenue from contracts with customers by segment:
Retirement and Income Solutions:
Retirement and Income Solutions – Fee	$	144.2	$	133.4	$	433.8	$	441.0
Retirement and Income Solutions – Spread		2.4		2.1		7.2		6.2
Total Retirement and Income Solutions		146.6		135.5		441.0		447.2
Principal Global Investors		453.5		377.0		1,303.6		1,108.1
Principal International		125.1		111.1		373.5		322.2
U.S. Insurance Solutions:
Specialty Benefits insurance		3.9		3.9		11.4		11.2
Individual Life insurance		15.8		12.0		44.5		35.8
Eliminations		—		—		(0.1)		(0.1)
Total U.S. Insurance Solutions		19.7		15.9		55.8		46.9
Corporate		51.6		42.4		155.9		111.2
Total segment revenue from contracts with customers		796.5		681.9		2,329.8		2,035.6
Adjustments for fees and other revenues not within the scope of revenue recognition guidance (1)		455.9		463.3		1,385.7		1,283.0
Pre-tax other adjustments (2)		(0.6)		(2.2)		(4.5)		14.0
Total fees and other revenues per consolidated statements of operations	$	1,251.8	$	1,143.0	$	3,711.0	$	3,332.6

(1) Fees and other revenues not within the scope of the revenue recognition guidance primarily represent revenue on contracts accounted for under the financial instruments or insurance contracts standards.

(2) Pre-tax other adjustments relate to the recognition of deferred front-end fee revenues for sales charges on retirement and life insurance products and certain market value adjustments to fee revenues.

Retirement and Income Solutions – Fee

Retirement and Income Solutions – Fee offers service and trust agreements for defined contribution retirement plans, including 401(k) plans, 403(b) plans, and employee stock ownership plans. The investment components of these service agreements are in the form of mutual fund offerings. In addition, plan sponsor retirement plan trust and custody services are also available through an affiliated trust company. With the Acquired Business, services and trust agreements are also offered to non-retirement customers including insurance companies, endowments and other financial institutions.

Fees and other revenues are earned for administrative activities performed for the defined contribution retirement plans including recordkeeping and reporting as well as trust and custody, asset management and investment services. Fees and other revenues are earned for administrative activities performed for non-retirement plan customers including trust and custody services, defined benefit administration and investment management activities. The majority of these activities are performed daily over time. Fee-for-service transactions are also provided upon client request. These services are considered distinct or grouped into a bundle until a distinct performance obligation is identified. Some performance obligations are considered a series of distinct services, which are substantially the same and have the same pattern of transfer to the customer.

Fees and other revenues can be based on a fixed contractual rate for these services or can be variable based upon contractual rates applied to the market value of the client’s investment portfolio each day. If the consideration for this series of performance obligations is based on daily market value, it is considered variable each day as the services are performed over time. The consideration becomes unconstrained and thus recognized as revenue for each day’s series of distinct services once the market value of the clients’ investment portfolios is determined at market close or carried over at the end of the day for days when the market is closed. Additionally, fixed fees and other revenues are recognized point-in-time as fee-for-service transactions upon completion.

The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021			2020
	(in millions)
Administrative service fee revenue	$	144.2	$	132.8	$	431.4	$	439.7
Other fee revenue		—		0.6		2.4		1.3
Total revenues from contracts with customers		144.2		133.4		433.8		441.0
Fees and other revenues not within the scope of revenue recognition guidance		324.1		293.5		964.3		829.1
Total fees and other revenues		468.3		426.9		1,398.1		1,270.1
Premiums and other considerations		—		0.7		0.5		3.4
Net investment income		112.6		104.0		325.3		310.6
Total operating revenues	$	580.9	$	531.6	$	1,723.9	$	1,584.1

Retirement and Income Solutions - Spread

Retirement and Income Solutions – Spread offers individual retirement accounts (“IRAs”) through Principal Bank, which are primarily funded by retirement savings rolled over from qualified retirement plans. The IRAs are held in savings accounts, money market accounts and certificates of deposit. Revenues are earned through fees as the performance of establishing and maintaining IRA accounts is completed. Fee-for-service transactions are also provided upon client request. The establishment fees and annual maintenance fees are accrued into earnings over a period of time using the average account life. Upfront and recurring bank fees are related to performance obligations that have the same pattern of transfer to the customer and are recognized in income over time with control transferred to the customers utilizing the output method. These fees are based on a fixed contractual rate. Fixed fees and other revenues are also recognized point-in-time as fee-for-service transactions upon completion. Additionally, commission income is earned on advisory services provided to customers. The revenues are earned over time as the service is performed based upon contractual rates applied to the market value of the clients’ portfolios.

The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Deposit account fee revenue	$	2.2	$	2.1	$	6.7	$	6.2
Commission income		0.2		—		0.5		—
Total revenues from contracts with customers		2.4		2.1		7.2		6.2
Fees and other revenues not within the scope of revenue recognition guidance		2.1		1.9		6.8		7.8
Total fees and other revenues		4.5		4.0		14.0		14.0
Premiums and other considerations		482.1		517.1		1,111.9		2,497.7
Net investment income		585.4		527.2		1,698.0		1,569.8
Total operating revenues	$	1,072.0	$	1,048.3	$	2,823.9	$	4,081.5

Principal Global Investors

Fees and other revenues earned for asset management, investment advisory and distribution services provided to institutional and retail clients are based largely upon contractual rates applied to the specified amounts of the clients’ portfolios. Each service is a distinct performance obligation, or a series of distinct services that are a single performance obligation in that the services are substantially the same and have the same pattern of transfer to the customer. Fees and other revenues received for performance obligations such as asset management and other services are typically recognized over time utilizing the output method as the service is performed. Performance fees and transaction fees on certain accounts are recognized in income when the probability of significant reversal will not occur upon resolution of the uncertainty, which could be based on a variety of factors such as market performance or other internal metrics. Asset management fees are accrued each month based on the fee terms within the applicable agreement and are generally billed quarterly when values used for the calculation are available. Management fees and performance fees are variable consideration as they are subject to fluctuation based on assets under management (“AUM”) and other constraints. These fees are not recognized until unconstrained at the end of each reporting period.

The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Management fee revenue	$	389.9	$	330.2	$	1,119.9	$	954.7
Other fee revenue		63.6		46.8		183.7		153.4
Total revenues from contracts with customers		453.5		377.0		1,303.6		1,108.1
Fees and other revenues not within the scope of revenue recognition guidance		11.0		4.8		27.1		14.2
Total fees and other revenues		464.5		381.8		1,330.7		1,122.3
Net investment income		0.7		1.0		3.4		4.2
Total operating revenues	$	465.2	$	382.8	$	1,334.1	$	1,126.5

Principal International

Fees and other revenues are earned for asset management and distribution services provided to retail and institutional clients in addition to trustee and/or administrative services performed for retirement savings plans. Each service is considered a distinct performance obligation; however, if the services are not distinct on their own, we combine them into a distinct bundle or we have a series of distinct services that are substantially the same and have the same pattern of transfer to the customer. Fees and other revenues are typically based upon contractual rates applied to the market value of the clients’ investment portfolios and are considered variable consideration. The transaction price generally includes the amount determined at the end of the reporting period, whereby fees are deducted from the clients’ investment portfolios and are recognized as revenue when no longer constrained and satisfied as the services are performed over time utilizing the output method. In addition, payments to customers can take the form of an incentive given by us to entice the customer to purchase its goods or services. Incentives offered to customers are recognized as part of the transaction price as a reduction of revenue either over the period the customer remains in order to receive the incentive or monthly throughout the life of the contract.

Incentive-based fees are recognized in income when the probability of significant reversal will not occur upon the resolution of the uncertainty, which is based on market performance.

Fees for managing customers’ mandatory retirement savings accounts in Chile are collected with each monthly deposit made by our customers. If a customer stops contributing before retirement age, we collect no fees but services are still provided. We recognize revenue from these contracts as services are performed over the life of the contract and review annually.

The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Management fee revenue	$	123.0	$	110.1	$	367.8	$	319.3
Other fee revenue		2.1		1.0		5.7		2.9
Total revenues from contracts with customers		125.1		111.1		373.5		322.2
Fees and other revenues not within the scope of revenue recognition guidance		1.0		1.4		3.1		4.2
Total fees and other revenues		126.1		112.5		376.6		326.4
Premiums and other considerations		36.6		16.6		105.8		130.2
Net investment income		165.4		96.2		459.9		345.6
Total operating revenues	$	328.1	$	225.3	$	942.3	$	802.2
Revenues from contracts with customers by region:
Latin America	$	91.5	$	80.7	$	273.3	$	236.5
Asia		33.5		30.5		99.3		85.8
Principal International corporate / regional offices		0.5		0.2		2.0		0.7
Eliminations		(0.4)		(0.3)		(1.1)		(0.8)
Total revenues from contracts with customers	$	125.1	$	111.1	$	373.5	$	322.2

U.S. Insurance Solutions

Fees and other revenues are earned for administrative services performed including recordkeeping and reporting services for fee-for-service products, nonqualified benefit plans, separate accounts and dental networks. Services within contracts are not distinct on their own; however, we combine the services into a distinct bundle and account for the bundle as a single performance obligation, which is satisfied over time utilizing the output method as services are rendered. The transaction price corresponds with the performance completed to date, for which the value is recognized as revenue during the period. Variability of consideration is resolved at the end of each period and payments are due when billed.

Commission income is earned through sponsored brokerage services. Performance obligations are satisfied at a point in time, upon delivery of a placed case, and the transaction price calculated per the compensation schedule is recognized as revenue.

The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Specialty Benefits insurance:
Administrative service fees	$	3.9	$	3.9	$	11.4	$	11.2
Total revenues from contracts with customers		3.9		3.9		11.4		11.2
Fees and other revenues not within the scope of revenue recognition guidance		5.4		4.9		14.9		14.4
Total fees and other revenues		9.3		8.8		26.3		25.6
Premiums and other considerations		629.6		570.9		1,851.7		1,741.8
Net investment income		45.5		38.4		129.9		116.7
Total operating revenues	$	684.4	$	618.1	$	2,007.9	$	1,884.1

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Individual Life insurance:
Administrative service fees	$	6.8	$	5.4	$	19.3	$	16.1
Commission income		9.0		6.6		25.2		19.7
Total revenues from contracts with customers		15.8		12.0		44.5		35.8
Fees and other revenues not within the scope of revenue recognition guidance		204.1		232.6		635.8		634.4
Total fees and other revenues		219.9		244.6		680.3		670.2
Premiums and other considerations		82.2		79.0		265.4		255.3
Net investment income		203.6		179.7		593.4		523.3
Total operating revenues	$	505.7	$	503.3	$	1,539.1	$	1,448.8

Corporate

Fees and other revenues are earned on the performance of selling and servicing of securities and related products offered through PSI, an introducing broker-dealer registered with the FINRA.

PSI enters into selling and distribution agreements with the obligation to sell or distribute the securities products, such as mutual funds, annuities and products sold through RIAs, to individual clients in return for front-end sales charges, 12b-1 service fees, annuity fees and asset-based fees. Front-end sales charges, 12b-1 fees and annuity fees are related to a single sale and are earned at the time of sale. PSI also enters into agreements with individual customers to provide securities trade execution and custody through a brokerage services platform in return for ticket charge and other service fee revenue. These services are bundled as one single distinct service referred to as brokerage services. This revenue is related to distinct transactions and is earned at a point in time.

PSI also enters into agreements with individual customers to provide trade execution, clearing services, custody services and investment research services through our proprietary offered fee-based products. These services are bundled as one single distinct service referred to as advisory services. In addition, for outside RIA business PSI performs sales and distribution services only. The revenues are earned over time as the service is performed utilizing the output method.

A majority of our revenue is based upon contractual rates applied to the market value of the clients’ portfolios and considered variable consideration.

The Corporate segment also includes inter-segment eliminations of fees and other revenues. The types of revenues from contracts with customers were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021			2020
	(in millions)
Commission income	$	99.8	$	78.0	$	287.5	$	231.0
Other fee revenue		17.3		13.6		51.0		38.3
Eliminations		(65.5)		(49.2)		(182.6)		(158.1)
Total revenues from contracts with customers		51.6		42.4		155.9		111.2
Fees and other revenues not within the scope of revenue recognition guidance		(91.8)		(75.8)		(266.3)		(221.1)
Total fees and other revenues		(40.2)		(33.4)		(110.4)		(109.9)
Net investment income		25.9		16.4		88.6		85.9
Total operating revenues	$	(14.3)	$	(17.0)	$	(21.8)	$	(24.0)

Contract Costs

Sales compensation and other incremental costs of obtaining a contract are capitalized and amortized over the period of contract benefit if the costs are expected to be recovered. The contract cost asset, which is included in other assets on the consolidated statements of financial position, was $187.2 million and $173.0 million as of September 30, 2021 and December 31, 2020, respectively.

We apply the practical expedient for certain costs where we recognize the incremental costs of obtaining these contracts as an expense when incurred if the amortization period of the assets is one year or less. These costs, along with costs that are not deferrable, are included in operating expenses on the consolidated statements of operations.

Deferred contract costs consist primarily of commissions and variable compensation. We amortize capitalized contract costs on a straight-line basis over the expected contract life, reflecting lapses as they are incurred. Deferred contract costs are subject to impairment testing on an annual basis, or when a triggering event occurs that could warrant an impairment. To the extent future revenues less future maintenance expenses are not adequate to cover the asset balance, an impairment is recognized. Amortization expense of $8.0 million and $5.6 million for the three months ended September 30, 2021 and 2020 and $24.1 million and $17.6 million for the nine months ended September 30, 2021 and 2020, respectively, was recorded in operating expenses on the consolidated statements of operations and no impairment loss was recognized in relation to the costs capitalized.

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Stock-Based Compensation Plans

9 Months Ended

Sep. 30, 2021

Stock-Based Compensation Plans

Stock-Based Compensation Plans

13. Stock-Based Compensation Plans

As of September 30, 2021, we had the 2021 Stock Incentive Plan, the 2020 Directors Stock Plan, the 2014 Stock Incentive Plan, the Employee Stock Purchase Plan, the 2014 Directors Stock Plan, the Amended and Restated 2010 Stock Incentive Plan, the 2005 Directors Stock Plan, the Stock Incentive Plan and the Directors Stock Plan (“Stock-Based Compensation Plans”). No new grants will be made under the 2020 Directors Stock Plan, the 2014 Stock Incentive Plan, the 2014 Directors Stock Plan, the Amended and Restated 2010 Stock Incentive Plan, the 2005 Directors Stock Plan, the Stock Incentive Plan or the Directors Stock Plan. Under the terms of the 2021 Stock Incentive Plan grants may be nonqualified stock options, incentive stock options qualifying under Section 422 of the Internal Revenue Code, restricted stock, restricted stock units, stock appreciation rights, performance shares, performance units or other stock-based awards. To date, we have not granted any incentive stock options, restricted stock or performance units under any plans.

As of September 30, 2021, the maximum number of new shares of common stock available for grant under the 2021 Stock Incentive Plan was 24.4 million.

For awards with graded vesting, we use an accelerated expense attribution method. The compensation cost that was charged against net income for stock-based awards granted under the Stock-Based Compensation Plans was as follows:

	For the nine months ended September 30,
	2021		2020
	(in millions)
Compensation cost	$	74.1	$	67.0
Related income tax benefit		15.3		13.1
Capitalized as part of an asset		1.1		1.2

Nonqualified Stock Options

Nonqualified stock options were granted to certain employees under the 2014 Stock Incentive Plan. Total options granted were 0.9 million for the nine months ended September 30, 2021. The fair value of stock options is estimated using the Black-Scholes option pricing model. The following is a summary of the assumptions used in this model for the stock options granted during the period:

	For the nine months ended
	September 30, 2021
Expected volatility		34.2	%
Expected term (in years)		7.0
Risk-free interest rate		1.2	%
Expected dividend yield		3.82	%
Weighted average estimated fair value per common share	$	15.67

As of September 30, 2021, we had $5.8 million of total unrecognized compensation cost related to nonvested stock options. The cost is expected to be recognized over a weighted-average service period of approximately 1.5 years.

Performance Share Awards

Performance share awards were granted to certain employees under the 2014 Stock Incentive Plan. Total performance share awards granted were 0.3 million for the nine months ended September 30, 2021. The performance share awards granted represent initial target awards and do not reflect potential increases or decreases resulting from the final performance results to be determined at the end of the performance period. The actual number of common shares to be awarded at the end of each performance period will range between 0% and 150% of the initial target awards. The fair value of performance share awards is determined based on the closing stock price of our common shares on the grant date. The weighted-average grant date fair value of these performance share awards granted was $58.68 per common share.

As of September 30, 2021, we had $8.7 million of total unrecognized compensation cost related to nonvested performance share awards granted. The cost is expected to be recognized over a weighted-average service period of approximately 1.5 years.

Restricted Stock Units

Restricted stock units were issued to certain employees pursuant to the 2021 Stock Incentive Plan and the 2014 Stock Incentive Plan and were issued to non-employee directors pursuant to the 2021 Stock Incentive Plan and the 2020 Directors Stock Plan. Total restricted stock units granted were 1.1 million for the nine months ended September 30, 2021. The fair value of restricted stock units is determined based on the closing stock price of our common shares on the grant date. The weighted-average grant date fair value of these restricted stock units granted was $59.11 per common share.

As of September 30, 2021, we had $63.9 million of total unrecognized compensation cost related to nonvested restricted stock unit awards granted. The cost is expected to be recognized over a weighted-average period of approximately 1.7 years.

Employee Stock Purchase Plan

Under the Employee Stock Purchase Plan, employees purchased 0.8 million shares for the nine months ended September 30, 2021. The weighted average fair value of the discount on the stock purchased was $15.47 per share.

As of September 30, 2021, a total of 4.2 million of new shares were available to be made issuable by us for this plan.

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Earnings Per Common Share

9 Months Ended

Sep. 30, 2021

Earnings Per Common Share

Earnings Per Common Share

14. Earnings Per Common Share

The computations of the basic and diluted per share amounts were as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions, except per share data)
Net income	$	364.3	$	235.9	$	1,252.2	$	937.0
Subtract:
Net income attributable to noncontrolling interest		4.4		(0.1)		13.4		13.8
Total	$	359.9	$	236.0	$	1,238.8	$	923.2
Weighted-average shares outstanding:
Basic		268.0		274.8		270.7		274.7
Dilutive effects:
Stock options		1.3		0.4		1.2		0.3
Restricted stock units		2.2		1.5		2.0		1.3
Performance share awards		0.4		0.1		0.5		0.1
Diluted		271.9		276.8		274.4		276.4
Net income per common share:
Basic	$	1.34	$	0.86	$	4.58	$	3.36
Diluted	$	1.32	$	0.85	$	4.51	$	3.34

The calculation of diluted earnings per share for the three and nine months ended September 30, 2021 and 2020, excludes the incremental effect related to certain outstanding stock-based compensation grants due to their anti-dilutive effect.

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Nature of Operations and Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2021

Nature of Operations and Significant Accounting Policies

Basis of Presentation - Policy

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements of Principal Financial Group, Inc. (“PFG”) have been prepared in conformity with accounting principles generally accepted in the U.S. (“U.S. GAAP”) for interim financial statements and with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2021, are not necessarily indicative of the results that may be expected for the year ended December 31, 2021, especially when considering risks and uncertainties, including those associated with the novel coronavirus (“COVID-19”), that may impact our business, results of operations, financial condition and liquidity. Our use of estimates and assumptions affect amounts reported and disclosed and includes, but is not limited to, the fair value of investments in the absence of quoted market values, investment impairments and valuation allowances, the fair value of derivatives, deferred acquisition costs (“DAC”) and other actuarial balances, measurement of goodwill and intangible assets, the liability for future policy benefits and claims, the value of pension and other postretirement benefits and accounting for income taxes and the valuation of deferred tax assets. Our estimates and assumptions could change in the future as more information becomes known about the impact of COVID-19. Our results of operations and financial condition may also be impacted by other uncertainties including evolving regulatory, legislative and standard-setter accounting interpretations and guidance.

These interim unaudited condensed consolidated financial statements should be read in conjunction with our annual audited financial statements as of December 31, 2020, included in our Form 10-K for the year ended December 31, 2020, filed with the United States Securities and Exchange Commission (“SEC”). The accompanying condensed consolidated statement of financial position as of December 31, 2020, has been derived from the audited consolidated statement of financial position but does not include all of the information and footnotes required by U.S. GAAP for complete financial statements.

Consolidation - Policy

Consolidation

We have relationships with various special purpose entities and other legal entities that must be evaluated to determine if the entities meet the criteria of a variable interest entity (“VIE”) or a voting interest entity (“VOE”). This assessment is performed by reviewing contractual, ownership and other rights, including involvement of related parties, and requires use of judgment. First, we determine if we hold a variable interest in an entity by assessing if we have the right to receive expected losses and expected residual returns of the entity. If we hold a variable interest, then the entity is assessed to determine if it is a VIE. An entity is a VIE if the equity at risk is not sufficient to support its activities, if the equity holders lack a controlling financial interest or if the entity is structured with non-substantive voting rights. In addition to the previous criteria, if the entity is a limited partnership or similar entity, it is a VIE if the limited partners do not have the power to direct the entity’s most significant activities through substantive kick-out rights or participating rights. A VIE is evaluated to determine the primary beneficiary. The primary beneficiary of a VIE is the enterprise with (1) the power to direct the activities of a VIE that most significantly impact the entity’s economic performance and (2) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE. When we are the primary beneficiary, we are required to consolidate the entity in our financial statements. We reassess our involvement with VIEs on a quarterly basis. For further information about VIEs, refer to Note 2, Variable Interest Entities.

If an entity is not a VIE, it is considered a VOE. VOEs are generally consolidated if we own a greater than 50% voting interest. If we determine our involvement in an entity no longer meets the requirements for consolidation under either the VIE or VOE models, the entity is deconsolidated. Entities in which we have management influence over the operating and financing decisions but are not required to consolidate, other than investments accounted for at fair value under the fair value option, are reported using the equity method.

Recent Accounting Pronouncements - Policy

Recent Accounting Pronouncements

Description	Date of adoption	Effect on our consolidated financial statements or other significant matters
Standards not yet adopted:
Targeted improvements to the accounting for long-duration insurance contracts This authoritative guidance updates certain requirements in the accounting for long-duration insurance and annuity contracts. 1. The assumptions used to calculate the liability for future policy benefits on traditional and limited-payment contracts will be reviewed and updated periodically. Cash flow assumptions will be reviewed at least annually and updated when necessary with the impact recognized in net income. Discount rate assumptions are prescribed as the current upper-medium grade (low credit risk) fixed income instrument yield and will be updated quarterly with the impact recognized in other comprehensive income (“OCI”). 2. Market risk benefits, which are contracts or contract features that provide protection to the policyholder from capital market risk and expose us to other-than-nominal capital market risk, are measured at fair value. The periodic change in fair value is recognized in net income with the exception of the periodic change in fair value related to our own nonperformance risk, which is recognized in OCI. 3. DAC and other actuarial balances for all insurance and annuity contracts will be amortized on a constant basis over the expected term of the related contracts. 4. Additional disclosures are required, including disaggregated rollforwards of significant insurance liabilities and other account balances as well as disclosures about significant inputs, judgments, assumptions and methods used in measurement. The guidance for the liability for future policy benefits for traditional and limited-payment contracts and DAC will be applied on a modified retrospective basis; that is, to contracts in force as of the beginning of the earliest period presented based on their existing carrying amounts. An entity may elect to apply the changes retrospectively. The guidance for market risk benefits will be applied retrospectively. Early adoption is permitted.	January 1, 2023	Our implementation and evaluation process to date includes, but is not limited to the following: ● identifying and documenting contracts and contract features in scope of the guidance; ● identifying the actuarial models, systems and processes to be updated; ● evaluating and selecting our systems solutions for implementing the new guidance; ● building models and evaluating preliminary output as models are developed; ● evaluating and finalizing our key accounting policies; ● assessing the impact to our chart of accounts; ● developing format and content of new disclosures; ● conducting operational dry runs using model output and updated chart of accounts; ● evaluating transition requirements and impacts and ● establishing and documenting appropriate internal controls. As we progress through our implementation, we will be able to better assess the impact to our consolidated financial statements; however, we expect this guidance to significantly change how we account for many of our insurance and annuity products.

Description	Date of adoption	Effect on our consolidated financial statements or other significant matters
Standards adopted:
Simplifying the accounting for income taxes This authoritative guidance simplifies the accounting for income taxes by removing certain exceptions, including exceptions related to the incremental approach for intraperiod tax allocation, calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. Also, the guidance clarifies the accounting for franchise taxes, transactions that result in a step-up in the tax basis of goodwill and enacted changes in tax laws or rates. It specifies that an entity is not required to allocate the consolidated amount of current and deferred tax expense to a legal entity that is not subject to tax in its separate financial statements, although an entity may elect to do so. The guidance will be applied based on varying transition methods defined by amendment. Early adoption is permitted.	January 1, 2021	This guidance did not have a material impact on our consolidated financial statements.
Facilitation of the effects of reference rate reform on financial reporting This authoritative guidance provides optional expedients and exceptions for contracts and hedging relationships affected by reference rate reform. An entity may elect not to apply certain modification accounting requirements to contracts affected by reference rate reform and instead account for the modified contract as a continuation of the existing contract. Also, an entity may apply optional expedients to continue hedge accounting for hedging relationships in which the critical terms change due to reference rate reform. This guidance eases the financial reporting impacts of reference rate reform on contracts and hedging relationships and is effective until December 31, 2022.	March 12, 2020	We adopted the guidance upon issuance prospectively and elected the applicable optional expedients and exceptions for contracts and hedging relationships impacted by reference rate reform through December 31, 2022. The guidance did not have an impact on our consolidated financial statements upon adoption.
Goodwill impairment testing This authoritative guidance simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 (which measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill to the carrying amount of that goodwill) from the goodwill impairment test. A goodwill impairment loss will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary.	January 1, 2020	This guidance reduces complexity and costs associated with performing a Step 2 test, should one be needed in the future. This guidance did not have a material impact on our consolidated financial statements at adoption.

Description	Date of adoption	Effect on our consolidated financial statements or other significant matters
Credit losses This authoritative guidance requires entities to use a current expected credit loss (“CECL”) model to measure impairment for most financial assets that are not recorded at fair value through net income. Under the CECL model, an entity will estimate lifetime expected credit losses considering available relevant information about historical events, current conditions and reasonable and supportable forecasts. The CECL model does not apply to available-for-sale debt securities; however, the credit loss calculation and subsequent recoveries for available-for-sale securities are required to be recorded through an allowance. This guidance also expands the required credit loss disclosures.	January 1, 2020	We adopted the guidance using the modified retrospective approach. A cumulative effect adjustment of $8.4 million was recorded as a decrease to retained earnings. We recorded an offsetting increase in the allowance for credit loss for mortgage loans, reinsurance recoverables and commitments and a decrease for deferred tax impacts. See Note 3, Investments, for further details.

When we adopt new accounting standards, we have a process in place to perform a thorough review of the pronouncement, identify the financial statement and system impacts and create an implementation plan among our impacted business units to ensure we are compliant with the pronouncement on the date of adoption. This includes having effective processes and controls in place to support the reported amounts. Each of the standards listed above is in varying stages in our implementation process based on its issuance and adoption dates. We are on track to implement guidance by the respective effective dates.

Loan modifications related to COVID-19 - Policy

Investments

Loan modifications related to COVID-19

Our commercial and residential mortgage loan portfolios can include loans that have been modified. We assess loan modifications on a case-by-case basis to evaluate whether a troubled debt restructuring (“TDR”) has occurred. In response to COVID-19, the Coronavirus Aid, Relief and Economic Security Act, which was subsequently amended by the Consolidated Appropriations Act, 2021, (collectively the “CARES Act”) provides a temporary suspension of TDR accounting for certain COVID-19 related loan modifications where the loan was not more than 30 days past due as of December 31, 2019. We elected the TDR relief in the CARES Act beginning in the second quarter of 2020. The CARES Act TDR relief does not apply to modifications completed subsequent to the earlier of 60 days after the national emergency related to COVID-19 ends, or January 1, 2022. In addition, the Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (As Revised on April 7, 2020) (“Interagency Statement”) provides additional guidance to determine if a short-term COVID-19 related loan modification is a TDR. We consider the CARES Act and the Interagency Statement when assessing loan modifications to determine whether a TDR has occurred. See Note 3, Investments, under the caption “Mortgage Loan Modifications” for further details.

Derivatives - Policy

Derivatives

Overview

Derivatives are financial instruments whose values are derived from interest rates, foreign exchange rates, financial indices or the values of securities. Derivatives generally used by us include swaps, options, futures and forwards. Derivative positions are either assets or liabilities in the consolidated statements of financial position and are measured at fair value, generally by obtaining quoted market prices or through the use of pricing models. See Note 10, Fair Value Measurements, for policies related to the determination of fair value. Fair values can be affected by changes in interest rates, foreign exchange rates, financial indices, values of securities, credit spreads, and market volatility and liquidity.

Accounting and Financial Statement Presentation

We designate derivatives as either:

(a) a hedge of the exposure to changes in the fair value of a recognized asset or liability or an unrecognized firm commitment, including those denominated in a foreign currency (“fair value hedge”);

(b) a hedge of a forecasted transaction or the exposure to variability of cash flows to be received or paid related to a recognized asset or liability, including those denominated in a foreign currency (“cash flow hedge”);

(c) a hedge of a net investment in a foreign operation or

(d) a derivative not designated as a hedging instrument.

Our accounting for the ongoing changes in fair value of a derivative depends on the intended use of the derivative and the designation, as described above, and is determined when the derivative contract is entered into or at the time of redesignation. Hedge accounting is used for derivatives that are specifically designated in advance as hedges and that reduce our exposure to an indicated risk by having a high correlation between changes in the value of the derivatives and the items being hedged at both the inception of the hedge and throughout the hedge period. Cash flows associated with derivatives are included within operating and financing activities in the consolidated statements of cash flows.

Fair Value Hedges. When a derivative is designated as a fair value hedge and is determined to be highly effective, changes in its fair value, along with changes in the fair value of the hedged asset, liability or firm commitment attributable to the hedged risk, are reported in the same consolidated statements of operations line item that is used to report the earnings effect of the hedged item. For fair value hedges of fixed maturities, available-for-sale, these changes in fair value are reported in net investment income. A fair value hedge determined to be highly effective may still result in a mismatch between the change in the fair value of the hedging instrument and the change in the fair value of the hedged item attributable to the hedged risk. Certain fair value hedges use the last-of-layer method to hedge a designated amount (the "last layer") within a closed portfolio of prepayable assets that is expected to remain outstanding for the length of the hedging relationship and is not expected to be impacted by prepayments, defaults or other factors that affect the timing and amount of cash flows. Prepayment risk is excluded when measuring the change in fair value attributable to the hedged risk under the last-of-layer method.

Cash Flow Hedges. When a derivative is designated as a cash flow hedge and is determined to be highly effective, changes in its fair value are recorded as a component of OCI. At the time the variability of cash flows being hedged impacts net income, the related portion of deferred gains or losses on the derivative instrument is reclassified and reported in net income.

Net Investment in a Foreign Operation Hedge. When a derivative is used as a hedge of a net investment in a foreign operation, its change in fair value, to the extent effective as a hedge, is recorded as a component of OCI. If the foreign operation is sold or upon complete or substantially complete liquidation, the deferred gains or losses on the derivative instrument are reclassified into net income.

Non-Hedge Derivatives. If a derivative does not qualify or is not designated for hedge accounting, all changes in fair value are reported in net income without considering the changes in the fair value of the economically associated assets or liabilities.

Hedge Documentation and Effectiveness Testing. At inception, we formally document all relationships between hedging instruments and hedged items, as well as our risk management objective and strategy for undertaking various hedge transactions. This process includes associating all derivatives designated as fair value or cash flow hedges with specific assets or liabilities on the consolidated statements of financial position or with specific firm commitments or forecasted transactions. Documentation of fair value hedges that use the last-of-layer method supports the expectation that the hedged last layer amount is anticipated to be outstanding at the end of the hedging relationship and includes expectations of prepayments, defaults or other factors that affect the timing and amount of cash flows. Effectiveness of the hedge is formally assessed at inception and throughout the life of the hedging relationship. Even if a hedge is determined to be highly effective, the hedge may still result in a mismatch between the change in the fair value of the hedging instrument and the change in the fair value of the hedged item attributable to the hedged risk.

We use qualitative and quantitative methods to assess hedge effectiveness. Qualitative methods may include monitoring changes to terms and conditions and counterparty credit ratings. Quantitative methods may include statistical tests including regression analysis and minimum variance and dollar offset techniques. For last-of-layer method hedges, the assessment of hedge effectiveness includes confirming we expect the hedged last layer amount to be outstanding at the end of the hedging relationship.

Termination of Hedge Accounting. We prospectively discontinue hedge accounting when (1) the criteria to qualify for hedge accounting is no longer met, e.g., a derivative is determined to no longer be highly effective in offsetting the change in fair value or cash flows of a hedged item; (2) the derivative expires, is sold, terminated or exercised or (3) we remove the designation of the derivative being the hedging instrument for a fair value or cash flow hedge.

If it is determined that a derivative no longer qualifies as an effective hedge, the derivative will continue to be carried on the consolidated statements of financial position at its fair value, with changes in fair value recognized prospectively in net realized capital gains (losses). The asset or liability under a fair value hedge will no longer be adjusted for changes in fair value pursuant to hedging rules and the existing basis adjustment is amortized to the consolidated statements of operations line associated with the asset or liability. If a last-of-layer method hedging relationship is discontinued, the outstanding basis adjustment is allocated to the individual assets in the closed portfolio and those amounts are amortized consistent with the amortization of other discounts or premiums associated with those assets.

The component of AOCI related to discontinued cash flow hedges that are no longer highly effective is amortized to the consolidated statements of operations consistent with the net income impacts of the original hedged cash flows. If a cash flow hedge is discontinued because it is probable the hedged forecasted transaction will not occur, the deferred gain or loss is immediately reclassified from AOCI into net income.

Embedded Derivatives. We purchase and issue certain financial instruments and products that contain a derivative that is embedded in the financial instrument or product. We assess whether this embedded derivative is clearly and closely related to the asset or liability that serves as its host contract. If we deem that the embedded derivative's terms are not clearly and closely related to the host contract, and a separate instrument with the same terms would qualify as a derivative instrument, the derivative is bifurcated from that contract and held at fair value on the consolidated statements of financial position, with changes in fair value reported in net income.

Separate Accounts - Policy

Separate Accounts

The separate accounts are legally segregated and are not subject to the claims that arise out of any of our other business. The client, rather than us, directs the investments and bears the investment risk of these funds. The separate account assets represent the fair value of funds that are separately administered by us for contracts with equity, real estate and fixed income investments and are presented as a summary total within the consolidated statements of financial position. An equivalent amount is reported as separate account liabilities, which represent the obligation to return the monies to the client. We receive fees for mortality, withdrawal and expense risks, as well as administrative, maintenance and investment advisory services that are included in the consolidated statements of operations. Net deposits, net investment income and realized and unrealized capital gains and losses of the separate accounts are not reflected in the consolidated statements of operations.

Separate account assets and separate account liabilities include certain international retirement accumulation products where the segregated funds and associated obligation to the client are consolidated within our financial statements. We have determined that summary totals are the most meaningful presentation for these funds.

As of September 30, 2021 and December 31, 2020, the separate accounts included a separate account valued at $94.5 million and $80.4 million, respectively, which primarily included shares of our stock that were allocated and issued to eligible participants of qualified employee benefit plans administered by us as part of the policy credits issued under our 2001 demutualization. These shares are included in both basic and diluted earnings per share calculations. In the consolidated statements of financial position, the separate account shares are recorded at fair value and are reported as separate account assets with a corresponding separate account liability. Changes in fair value of the separate account shares are reflected in both the separate account assets and separate account liabilities and do not impact our results of operations.

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Variable Interest Entities (Tables)

9 Months Ended

Sep. 30, 2021

Variable Interest Entities

Carrying Amounts of Assets and Liabilities of Consolidated Variable Interest Entities (Table)

	September 30, 2021				December 31, 2020
	Total		Total		Total		Total
	assets		liabilities		assets		liabilities
	(in millions)
Mandatory retirement savings funds (1)	$	35,161.0	$	34,771.0	$	41,995.2	$	41,527.9
Real estate (2)		691.0		42.8		499.0		21.3
Sponsored investment funds (3)		525.9		13.3		419.5		3.2
Residential mortgage loans (4)		1,337.5		21.0		319.8		—
Total	$	37,715.4	$	34,848.1	$	43,233.5	$	41,552.4

(1) The assets of the mandatory retirement savings funds primarily include separate account assets and equity securities. The liabilities primarily include separate account liabilities and contractholder funds.

(2) The assets of the real estate VIEs primarily include real estate and cash. Liabilities primarily include other liabilities.

(3) The assets of sponsored investment funds are primarily fixed maturities and equity securities, certain of which are reported with other investments, and cash. The consolidated statements of financial position included a $309.7 million and $226.8 million redeemable noncontrolling interest for sponsored investment funds as of September 30, 2021 and December 31, 2020, respectively.

(4) The assets of the residential mortgage loans VIEs primarily include residential mortgage loans. The liabilities include other liabilities as of September 30, 2021. Prior to 2021, the liabilities were eliminated in our consolidated results.

Asset Carrying Value and Maximum Loss Exposure of Unconsolidated Variable Interest Entities (Table)

			Maximum exposure to
	Asset carrying value		loss (1)
	(in millions)
September 30, 2021
Fixed maturities, available-for-sale:
Corporate	$	294.3	$	286.0
Residential mortgage-backed pass-through securities		2,882.6		2,816.2
Commercial mortgage-backed securities		5,283.2		5,086.5
Collateralized debt obligations (2)		3,566.3		3,569.6
Other debt obligations		7,080.5		6,942.3
Fixed maturities, trading:
Residential mortgage-backed pass-through securities		133.3		133.3
Commercial mortgage-backed securities		26.3		26.3
Collateralized debt obligations (2)		10.9		10.9
Other debt obligations		8.5		8.5
Equity securities		123.5		123.5
Other investments:
Other limited partnership and fund interests (3)		1,159.6		1,996.0
December 31, 2020
Fixed maturities, available-for-sale:
Corporate	$	296.9	$	285.7
Residential mortgage-backed pass-through securities		2,986.8		2,857.6
Commercial mortgage-backed securities		4,942.3		4,741.2
Collateralized debt obligations (2)		4,027.5		4,045.9
Other debt obligations		7,045.9		6,832.6
Fixed maturities, trading:
Residential mortgage-backed pass-through securities		190.5		190.5
Commercial mortgage-backed securities		27.1		27.1
Collateralized debt obligations (2)		20.6		20.6
Other debt obligations		9.4		9.4
Equity securities		121.7		121.7
Other investments:
Other limited partnership and fund interests (3)		999.1		1,739.0

(1) Our risk of loss is limited to our initial investment measured at amortized cost for fixed maturities, available-for-sale. Our risk of loss is limited to our investment measured at fair value for our fixed maturities, trading and equity securities. Our risk of loss is limited to our carrying value plus any unfunded commitments and/or guarantees and similar provisions for our other investments. A carrying value of zero is used if distributions have been received in excess of our investment, resulting in a negative carrying value for the investment. Unfunded commitments are not liabilities on our consolidated statements of financial position because we are only required to fund additional equity when called upon to do so by the general partner or investment manager.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

(3) As of September 30, 2021 and December 31, 2020, the maximum exposure to loss for other limited partnership and fund interests includes $133.2 million and $141.2 million, respectively, of debt within certain of our managed international real estate funds that is fully secured by assets whose value exceeds the amount of the debt, but also includes recourse to the investment manager.

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Investments (Tables)

9 Months Ended

Sep. 30, 2021

Investments

Available-for-Sale Securities (Table)

			Gross		Gross		Allowance
	Amortized		unrealized		unrealized		for credit
	cost (1)		gains		losses		loss		Fair value
	(in millions)
September 30, 2021
Fixed maturities, available-for-sale:
U.S. government and agencies	$	1,821.7	$	140.6	$	40.5	$	—	$	1,921.8
Non-U.S. governments		906.3		139.3		0.8		—		1,044.8
States and political subdivisions		8,255.6		1,004.3		26.9		—		9,233.0
Corporate		41,412.9		4,350.9		203.0		15.9		45,544.9
Residential mortgage-backed pass-through securities		2,816.2		82.8		16.4		—		2,882.6
Commercial mortgage-backed securities		5,086.5		219.2		22.2		0.3		5,283.2
Collateralized debt obligations (2)		3,569.6		7.3		10.6		—		3,566.3
Other debt obligations		6,942.3		162.1		23.8		0.1		7,080.5
Total fixed maturities, available-for-sale	$	70,811.1	$	6,106.5	$	344.2	$	16.3	$	76,557.1

			Gross		Gross		Allowance
	Amortized		unrealized		unrealized		for credit
	cost (1)		gains		losses		loss		Fair value
		(in millions)
December 31, 2020
Fixed maturities, available-for-sale:
U.S. government and agencies	$	1,893.1	$	228.9	$	10.5	$	—	$	2,111.5
Non-U.S. governments		881.6		192.1		—		—		1,073.7
States and political subdivisions		8,004.9		1,175.5		12.6		—		9,167.8
Corporate		41,289.9		6,160.9		95.1		0.9		47,354.8
Residential mortgage-backed pass-through securities		2,857.6		129.4		0.2		—		2,986.8
Commercial mortgage-backed securities		4,741.2		241.3		35.9		4.3		4,942.3
Collateralized debt obligations (2)		4,045.9		8.7		24.9		2.2		4,027.5
Other debt obligations		6,832.6		243.2		29.9		—		7,045.9
Total fixed maturities, available-for-sale	$	70,546.8	$	8,380.0	$	209.1	$	7.4	$	78,710.3

(1) Amortized cost excludes accrued interest receivable of $570.1 million and $552.5 million as of September 30, 2021 and December 31, 2020, respectively.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

Fixed Maturities Available-for-Sale by Contractual Maturity (Table)

	Amortized cost		Fair value
	(in millions)
Due in one year or less	$	2,216.3	$	2,245.6
Due after one year through five years		10,723.2		11,323.9
Due after five years through ten years		14,142.4		15,275.6
Due after ten years		25,314.6		28,899.4
Subtotal		52,396.5		57,744.5
Mortgage-backed and other asset-backed securities		18,414.6		18,812.6
Total	$	70,811.1	$	76,557.1

Net Realized Capital Gains and Losses (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Fixed maturities, available-for-sale:
Gross gains	$	13.0	$	22.3	$	61.2	$	128.6
Gross losses		(0.9)		(12.8)		(29.0)		(38.6)
Net credit losses		(9.6)		(9.1)		(27.4)		(25.3)
Hedging, net (1)		—		(0.2)		(1.0)		(9.8)
Fixed maturities, trading (2)		(4.0)		(1.5)		(28.7)		7.2
Equity securities (3)		31.2		52.8		85.5		28.4
Mortgage loans		2.6		(0.3)		14.2		(15.3)
Derivatives (1)		(173.7)		(42.5)		(153.9)		52.3
Other		(10.6)		56.8		37.4		42.0
Net realized capital gains (losses)	$	(152.0)	$	65.5	$	(41.7)	$	169.5

(1) The change in fair value of fixed maturities, available-for-sale and the change in fair value of derivative hedging instruments in fair value hedging relationships are reported in net investment income with the earnings effect of fixed maturities, available-for-sale. Gains (losses) for fixed maturities, available-for-sale related to terminated cash flow hedges continue to be reflected in net realized capital gains (losses).

(2) Unrealized gains (losses) on fixed maturities, trading still held at the reporting date were $(4.1) million and $(1.5) million for the three months ended September 30, 2021 and 2020, respectively, and $(27.6) million and $8.7 million for the nine months ended September 30, 2021 and 2020, respectively.

(3) Unrealized gains (losses) on equity securities still held at the reporting date were $21.5 million and $48.0 million for the three months ended September 30, 2021 and 2020, respectively, and $54.0 million and $30.0 million for the nine months ended September 30, 2021 and 2020, respectively. This excludes $3.7 million and $2.7 million for the three months ended September 30, 2021 and 2020, respectively, and $9.6 million and $13.2 million for the nine months ended September 30, 2021 and 2020, respectively, of unrealized gains on equity securities still held at the reporting date that were reported in net investment income.

Allowance for credit loss (Tables)

	For the three months ended September 30, 2021
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance	$	—	$	—	$	—	$	8.5	$	—	$	0.2	$	—	$	—	$	8.7
Additions for credit losses not previously recorded		—		—		—		7.8		—		0.1		—		0.1		8.0
Foreign currency translation adjustment		—		—		—		(0.4)		—		—		—		—		(0.4)
Ending balance	$	—	$	—	$	—	$	15.9	$	—	$	0.3	$	—	$	0.1	$	16.3

	For the three months ended September 30, 2020
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance	$	—	$	—	$	—	$	2.8	$	—	$	3.4	$	1.0	$	—	$	7.2
Additions for credit losses not previously recorded		—		—		—		3.4		—		1.2		—		—		4.6
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		—		—		—		—		—		1.0		0.9		—		1.9
Write-offs charged against allowance		—		—		—		—		—		(1.6)		—		—		(1.6)
Ending balance	$	—	$	—	$	—	$	6.2	$	—	$	4.0	$	1.9	$	—	$	12.1

	For the nine months ended September 30, 2021
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance	$	—	$	—	$	—	$	0.9	$	—	$	4.3	$	2.2	$	—	$	7.4
Additions for credit losses not previously recorded		—		—		—		15.4		—		0.4		—		0.1		15.9
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		—		—		—		—		—		2.4		0.4		—		2.8
Write-offs charged against allowance		—		—		—		—		—		(6.8)		(2.6)		—		(9.4)
Foreign currency translation adjustment		—		—		—		(0.4)		—		—		—		—		(0.4)
Ending balance	$	—	$	—	$	—	$	15.9	$	—	$	0.3	$	—	$	0.1	$	16.3
Accrued interest written off to net investment income	$	—	$	—	$	—	$	0.2	$	—	$	—	$	—	$	—	$	0.2

	For the nine months ended September 30, 2020
									Residential
									mortgage-
									backed		Commercial		Collateralized
	U.S.				States and				pass-		mortgage-		debt		Other
	government		Non-U.S.		political				through		backed		obligations		debt
	and agencies		governments		subdivisions		Corporate		securities		securities		(1)		obligations		Total
	(in millions)
Beginning balance (2)	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Additions for credit losses not previously recorded		—		—		—		13.2		—		2.9		0.1		0.1		16.3
Reductions for securities sold during the period		—		—		—		(7.0)		—		—		—		—		(7.0)
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		—		—		—		—		—		2.7		1.8		(0.1)		4.4
Write-offs charged against allowance		—		—		—		—		—		(1.6)		—		—		(1.6)
Ending balance	$	—	$	—	$	—	$	6.2	$	—	$	4.0	$	1.9	$	—	$	12.1

(1) Primarily consists of collateralized loan obligations backed by secured corporate loans.

(2) The allowance for credit loss associated with fixed maturities, available-for-sale was applied prospectively upon adoption of authoritative guidance effective January 1, 2020.

Available-for-Sale Securities in Unrealized Loss Positions Without an Allowance for Credit Loss (Table)

	September 30, 2021
	Less than				Greater than or
	twelve months				equal to twelve months				Total
			Gross				Gross				Gross
	Fair		unrealized		Fair		unrealized		Fair		unrealized
	value		losses		value		losses		value		losses
	(in millions)
Fixed maturities, available-for-sale (1):
U.S. government and agencies	$	400.1	$	14.9	$	150.8	$	25.7	$	550.9	$	40.6
Non-U.S. governments		47.7		0.8		—		—		47.7		0.8
States and political subdivisions		632.3		10.9		245.1		15.9		877.4		26.8
Corporate		4,287.4		141.3		448.6		48.6		4,736.0		189.9
Residential mortgage-backed pass-through securities		1,229.4		15.9		21.8		0.6		1,251.2		16.5
Commercial mortgage-backed securities		480.6		4.9		321.6		14.1		802.2		19.0
Collateralized debt obligations (2)		1,235.9		2.9		461.3		7.7		1,697.2		10.6
Other debt obligations		2,334.4		17.3		177.4		6.5		2,511.8		23.8
Total fixed maturities, available-for-sale	$	10,647.8	$	208.9	$	1,826.6	$	119.1	$	12,474.4	$	328.0

(1) Fair value and gross unrealized losses are excluded for available-for-sale securities for which an allowance for credit loss has been recorded.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

	December 31, 2020
	Less than				Greater than or
	twelve months				equal to twelve months				Total
			Gross				Gross				Gross
	Fair		unrealized		Fair		unrealized		Fair		unrealized
	value		losses		value		losses		value		losses
	(in millions)
Fixed maturities, available-for-sale (1):
U.S. government and agencies	$	351.1	$	10.4	$	—	$	—	$	351.1	$	10.4
States and political subdivisions		363.5		12.5		—		—		363.5		12.5
Corporate		1,578.7		54.4		267.9		40.6		1,846.6		95.0
Residential mortgage-backed pass-through securities		92.3		0.2		1.6		—		93.9		0.2
Commercial mortgage-backed securities		970.9		22.1		137.4		12.2		1,108.3		34.3
Collateralized debt obligations (2)		1,750.6		11.1		931.1		12.9		2,681.7		24.0
Other debt obligations		802.3		28.1		61.1		1.7		863.4		29.8
Total fixed maturities, available-for-sale	$	5,909.4	$	138.8	$	1,399.1	$	67.4	$	7,308.5	$	206.2

(1) Fair value and gross unrealized losses are excluded for available-for-sale securities for which an allowance for credit loss has been recorded.

(2) Primarily consists of collateralized loan obligations backed by secured corporate loans.

Net Unrealized Gains and Losses on Available-for-Sale Securities and Derivative Instruments (Table)

	September 30, 2021		December 31, 2020
	(in millions)
Net unrealized gains on fixed maturities, available-for-sale (1)	$	5,749.7	$	8,193.0
Net unrealized gains on derivative instruments		79.6		38.9
Adjustments for assumed changes in amortization patterns		(316.5)		(437.3)
Adjustments for assumed changes in policyholder liabilities		(1,029.2)		(2,603.9)
Net unrealized gains on other investments and noncontrolling interest adjustments		55.9		78.0
Provision for deferred income taxes		(956.7)		(1,112.2)
Net unrealized gains on available-for-sale securities and derivative instruments	$	3,582.8	$	4,156.5

(1) Excludes net unrealized gains (losses) on fixed maturities, available-for-sale included in fair value hedging relationships.

Financing Receivable Credit Quality Indicators (Table)

	As of September 30, 2021
	2021		2020		2019		2018		2017		Prior		Total
		(in millions)
Commercial mortgage loans:
A- and above	$	1,852.4	$	1,812.6	$	2,447.0	$	2,411.6	$	1,623.0	$	4,504.4	$	14,651.0
BBB+ thru BBB-		233.1		296.9		294.0		160.5		183.3		384.8		1,552.6
BB+ thru BB-		23.8		5.4		—		—		—		56.1		85.3
B+ and below		—		—		—		9.0		—		34.7		43.7
Total	$	2,109.3	$	2,114.9	$	2,741.0	$	2,581.1	$	1,806.3	$	4,980.0	$	16,332.6
Direct financing leases:
A- and above	$	—	$	44.1	$	1.4	$	40.3	$	17.1	$	255.0	$	357.9
BBB+ thru BBB-		25.1		59.4		22.7		18.3		16.0		53.1		194.6
BB+ thru BB-		51.6		13.8		1.9		—		—		2.1		69.4
B+ and below		1.5		—		—		—		—		—		1.5
Total	$	78.2	$	117.3	$	26.0	$	58.6	$	33.1	$	310.2	$	623.4
Residential mortgage loans:
Performing	$	1,665.2	$	585.2	$	181.5	$	101.5	$	117.5	$	470.3	$	3,121.2
Non-performing		0.7		1.8		1.3		0.6		0.8		4.0		9.2
Total	$	1,665.9	$	587.0	$	182.8	$	102.1	$	118.3	$	474.3	$	3,130.4
Reinsurance recoverables													$	1,122.7

	As of December 31, 2020
	2020		2019		2018		2017		2016		Prior		Total
	(in millions)
Commercial mortgage loans:
A- and above	$	1,807.6	$	2,486.8	$	2,464.7	$	1,780.8	$	1,417.8	$	3,697.0	$	13,654.7
BBB+ thru BBB-		149.1		194.1		352.5		262.7		75.8		499.7		1,533.9
BB+ thru BB-		23.7		69.0		—		—		9.1		43.9		145.7
B+ and below		39.4		20.0		—		5.8		6.6		35.5		107.3
Total	$	2,019.8	$	2,769.9	$	2,817.2	$	2,049.3	$	1,509.3	$	4,276.1	$	15,441.6
Direct financing leases:
A- and above	$	43.9	$	1.6	$	42.6	$	19.2	$	15.3	$	202.9	$	325.5
BBB+ thru BBB-		94.9		5.5		11.3		18.4		3.0		35.5		168.6
BB+ thru BB-		13.3		—		—		—		—		1.9		15.2
B+ and below		57.6		22.5		11.9		—		1.0		108.5		201.5
Total	$	209.7	$	29.6	$	65.8	$	37.6	$	19.3	$	348.8	$	710.8
Residential mortgage loans:
Performing	$	699.1	$	336.7	$	167.0	$	165.1	$	167.6	$	398.7	$	1,934.2
Non-performing		—		2.0		0.8		1.4		0.4		12.7		17.3
Total	$	699.1	$	338.7	$	167.8	$	166.5	$	168.0	$	411.4	$	1,951.5
Reinsurance recoverables													$	1,098.0

Non-Accrual Financing Receivables (Table)

		September 30, 2021
					Amortized cost
	Beginning		Ending		of nonaccrual
	amortized cost		amortized cost		assets without
	on nonaccrual		on nonaccrual		a valuation
	status		status		allowance
		(in millions)
Commercial mortgage loans	$	10.7	$	4.6	$	—
Residential mortgage loans		10.8		6.2		0.7
Total	$	21.5	$	10.8	$	0.7

	December 31, 2020
					Amortized cost
	Beginning		Ending		of nonaccrual
	amortized cost		amortized cost		assets without
	on nonaccrual		on nonaccrual		a valuation
	status		status		allowance
		(in millions)
Commercial mortgage loans	$	5.0	$	10.7	$	—
Residential mortgage loans		6.8		10.8		0.7
Total	$	11.8	$	21.5	$	0.7

Financing Receivables Aging (Table)

	September 30, 2021
													Amortized
													cost
					90 days or								90 days or
	30-59 days		60-89 days		more past		Total past						more and
	past due		past due		due		due		Current		Total (1)		accruing
	(in millions)
Commercial mortgage loans	$	5.3	$	0.1	$	7.3	$	12.7	$	16,319.9	$	16,332.6	$	2.7
Direct financing leases		—		—		3.6		3.6		619.8		623.4		3.6
Residential mortgage loans		34.8		7.4		7.4		49.6		3,080.8		3,130.4		3.0
Total	$	40.1	$	7.5	$	18.3	$	65.9	$	20,020.5	$	20,086.4	$	9.3

	December 31, 2020
													Amortized
													cost
					90 days or								90 days or
	30-59 days		60-89 days		more past		Total past						more and
	past due		past due		due		due		Current		Total (1)		accruing
	(in millions)
Commercial mortgage loans	$	42.1	$	9.2	$	12.0	$	63.3	$	15,378.3	$	15,441.6	$	1.3
Direct financing leases		—		3.2		—		3.2		707.6		710.8		—
Residential mortgage loans		66.6		8.8		10.9		86.3		1,865.2		1,951.5		6.5
Total	$	108.7	$	21.2	$	22.9	$	152.8	$	17,951.1	$	18,103.9	$	7.8

(1) As of both September 30, 2021 and December 31, 2020, no reinsurance recoverables were considered past due.

Financing Receivables Valuation Allowance (Table)

	For the three months ended September 30, 2021
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance	$	36.6	$	0.3	$	3.2	$	2.6	$	42.7
Provision (1)		(2.1)		—		(1.4)		0.1		(3.4)
Charge-offs		—		—		(0.2)		—		(0.2)
Recoveries		—		—		1.0		—		1.0
Foreign currency translation adjustment		(0.1)		—		—		—		(0.1)
Ending balance	$	34.4	$	0.3	$	2.6	$	2.7	$	40.0

	For the three months ended September 30, 2020
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance	$	40.4	$	0.2	$	5.6	$	2.5	$	48.7
Provision		1.7		(0.1)		(0.3)		0.1		1.4
Charge-offs		—		—		(0.1)		—		(0.1)
Recoveries		—		—		0.6		—		0.6
Ending balance	$	42.1	$	0.1	$	5.8	$	2.6	$	50.6

	For the nine months ended September 30, 2021
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance	$	43.2	$	0.1	$	6.9	$	2.7	$	52.9
Provision (1)		(8.6)		0.2		(6.5)		—		(14.9)
Charge-offs		—		—		(0.5)		—		(0.5)
Recoveries		—		—		2.7		—		2.7
Foreign currency translation adjustment		(0.2)		—		—		—		(0.2)
Ending balance	$	34.4	$	0.3	$	2.6	$	2.7	$	40.0

	For the nine months ended September 30, 2020
			Direct
	Commercial		financing		Residential		Reinsurance
	mortgage loans		leases		mortgage loans		recoverables		Total
		(in millions)
Beginning balance (2)	$	27.3	$	—	$	3.3	$	2.5	$	33.1
Provision (3)		14.8		0.1		1.0		0.1		16.0
Charge-offs		—		—		(0.3)		—		(0.3)
Recoveries		—		—		1.8		—		1.8
Ending balance	$	42.1	$	0.1	$	5.8	$	2.6	$	50.6

(1) During the three and nine months ended September 30, 2021, certain valuation allowances for commercial and residential mortgage loans were released. This release was a result of further adjustments to our current and forecasted environmental factors management believed to be relevant as global economic activity improved from previously adverse impacts due to COVID-19.

(2) Upon adoption of authoritative guidance effective January 1, 2020, we updated accounting policies and methodology, adjusted the commercial and residential mortgage loan valuation allowance and established a valuation allowance for reinsurance recoverables. See Note 1, Nature of Operations and Significant Accounting Policies under the caption, “Recent Accounting Pronouncements” for further details.

(3) During the nine months ended September 30, 2020, COVID-19 adversely impacted global economic activity and contributed to significant volatility in financial markets. As a result, certain current and forecasted environmental factors management believed to be relevant were adjusted, resulting in an increase in the valuation allowance for commercial and residential mortgage loans and direct financing leases.

Mortgage Loans Purchased and Sold (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Commercial mortgage loans:
Purchased	$	1.5	$	65.0	$	106.3	$	151.3
Sold		—		3.3		66.3		4.4
Residential mortgage loans:
Purchased (1)		1,142.0		242.0		1,955.0		736.5
Sold		29.5		24.6		73.1		98.0

(1) Includes mortgage loans purchased by residential mortgage loan VIEs established in 2021.

Commercial Mortgage Loans by Geographic Distribution and Property Type Distribution (Table)

	September 30, 2021				December 31, 2020
	Amortized		Percent		Amortized		Percent
	cost		of total		cost		of total
	($ in millions)
Geographic distribution
New England	$	588.4	3.6	%	$	593.9	3.8	%
Middle Atlantic		4,508.0	27.5			4,438.2	28.8
East North Central		596.4	3.7			572.6	3.7
West North Central		290.4	1.8			267.5	1.7
South Atlantic		2,455.1	15.0			2,368.9	15.3
East South Central		374.9	2.3			316.6	2.1
West South Central		1,249.6	7.7			1,315.9	8.5
Mountain		1,006.9	6.2			936.2	6.1
Pacific		4,825.0	29.5			4,183.0	27.1
International		437.9	2.7			448.8	2.9
Total	$	16,332.6	100.0	%	$	15,441.6	100.0	%
Property type distribution
Office	$	4,839.0	29.7	%	$	4,491.7	29.0	%
Retail		1,689.7	10.3			1,815.3	11.8
Industrial		2,970.6	18.2			2,488.7	16.1
Apartments		6,059.0	37.1			5,958.0	38.6
Hotel		86.6	0.5			89.4	0.6
Mixed use/other		687.7	4.2			598.5	3.9
Total	$	16,332.6	100.0	%	$	15,441.6	100.0	%

Financial Assets Subject to Netting Agreements (Table)

			Gross amounts not offset in the
			consolidated statements
			of financial position
	Gross amount
	of recognized		Financial		Collateral
	assets (1)		instruments (2)		received		Net amount
	(in millions)
September 30, 2021
Derivative assets	$	328.1	$	(112.1)	$	(208.1)	$	7.9
Reverse repurchase agreements		24.2		—		(24.2)		—
Total	$	352.3	$	(112.1)	$	(232.3)	$	7.9
December 31, 2020
Derivative assets	$	463.5	$	(132.5)	$	(293.5)	$	37.5
Reverse repurchase agreements		63.7		—		(63.7)		—
Total	$	527.2	$	(132.5)	$	(357.2)	$	37.5

(1) The gross amount of recognized derivative and reverse repurchase agreement assets are reported with other investments and cash and cash equivalents, respectively, on the consolidated statements of financial position. The gross amounts of derivative and reverse repurchase agreement assets are not netted against offsetting liabilities for presentation on the consolidated statements of financial position.

(2) Represents amount of offsetting derivative liabilities that are subject to an enforceable master netting agreement or similar agreement that are not netted against the gross derivative assets for presentation on the consolidated statements of financial position.

Financial Liabilities Subject to Netting Agreements (Table)

			Gross amounts not offset in the
			consolidated statements
			of financial position
	Gross amount
	of recognized		Financial		Collateral
	liabilities (1)		instruments (2)		pledged		Net amount
	(in millions)
September 30, 2021
Derivative liabilities	$	242.2	$	(112.1)	$	(73.9)	$	56.2
December 31, 2020
Derivative liabilities	$	186.2	$	(132.5)	$	(45.7)	$	8.0

(1) The gross amount of recognized derivative liabilities is reported with other liabilities on the consolidated statements of financial position. The above excludes $356.1 million and $467.8 million of derivative liabilities as of September 30, 2021 and December 31, 2020, respectively, which are primarily embedded derivatives that are not subject to master netting agreements or similar agreements. The gross amounts of derivative liabilities are not netted against offsetting assets for presentation on the consolidated statements of financial position.

(2) Represents amount of offsetting derivative assets that are subject to an enforceable master netting agreement or similar agreement that are not netted against the gross derivative liabilities for presentation on the consolidated statements of financial position.

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Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2021

Derivative Financial Instruments

Derivative Financial Instruments, Exposure (Table)

	September 30, 2021		December 31, 2020
	(in millions)
Notional amounts of derivative instruments
Interest rate contracts:
Interest rate swaps	$	44,028.9	$	44,472.1
Interest rate options		2,373.9		2,083.9
Interest rate forwards		2,181.6		1,000.0
Interest rate futures		1,585.0		188.5
Swaptions		—		62.0
Foreign exchange contracts:
Currency swaps		1,152.6		1,045.5
Currency forwards		1,006.7		1,115.8
Equity contracts:
Equity options		2,284.4		1,857.8
Equity futures		117.4		218.1
Credit contracts:
Credit default swaps		310.0		295.0
Other contracts:
Embedded derivatives		10,141.6		9,953.8
Total notional amounts at end of period	$	65,182.1	$	62,292.5
Credit exposure of derivative instruments
Interest rate contracts:
Interest rate swaps	$	215.1	$	291.0
Interest rate options		31.9		51.0
Interest rate forwards		—		6.2
Foreign exchange contracts:
Currency swaps		46.0		43.3
Currency forwards		8.9		45.4
Equity contracts:
Equity options		36.2		33.2
Credit contracts:
Credit default swaps		3.0		3.4
Total gross credit exposure		341.1		473.5
Less: collateral received		217.9		294.7
Net credit exposure	$	123.2	$	178.8

Derivative Financial Instruments, Fair Value Disclosures (Table)

	Derivative assets (1)				Derivative liabilities (2)
	September 30, 2021		December 31, 2020		September 30, 2021		December 31, 2020
	(in millions)
Derivatives designated as hedging instruments
Interest rate contracts	$	0.6	$	—	$	21.2	$	27.8
Foreign exchange contracts		46.2		21.1		15.2		44.7
Total derivatives designated as hedging instruments	$	46.8	$	21.1	$	36.4	$	72.5
Derivatives not designated as hedging instruments
Interest rate contracts	$	234.2	$	339.3	$	62.6	$	33.0
Foreign exchange contracts		7.9		66.5		78.8		29.2
Equity contracts		36.3		33.2		62.6		49.0
Credit contracts		2.9		3.4		2.6		2.5
Other contracts		—		—		355.3		467.8
Total derivatives not designated as hedging instruments		281.3		442.4		561.9		581.5
Total derivative instruments	$	328.1	$	463.5	$	598.3	$	654.0

(1) The fair value of derivative assets is reported with other investments on the consolidated statements of financial position.

(2) The fair value of derivative liabilities is reported with other liabilities on the consolidated statements of financial position, with the exception of certain embedded derivative liabilities. Embedded derivatives with a net liability fair value of $355.3 million and $467.8 million as of September 30, 2021 and December 31, 2020, respectively, are reported with contractholder funds on the consolidated statements of financial position.

Credit Derivatives Sold (Table)

	September 30, 2021
							Weighted
					Maximum		average
	Notional		Fair		future		expected life
	amount		value		payments		(in years)
	(in millions)
Single name credit default swaps
Corporate debt
A	$	20.0	$	0.4	$	20.0	3.7
BBB		110.0		2.0		110.0	3.3
Sovereign
A		20.0		0.5		20.0	3.7
BBB		15.0		—		15.0	0.2
Total credit default swap protection sold	$	165.0	$	2.9	$	165.0	3.1

	December 31, 2020
							Weighted
					Maximum		average
	Notional		Fair		future		expected life
	amount		value		payments		(in years)
	(in millions)
Single name credit default swaps
Corporate debt
A	$	20.0	$	0.5	$	20.0	4.5
BBB		115.0		2.1		115.0	3.9
Sovereign
A		20.0		0.6		20.0	4.5
BBB		15.0		0.1		15.0	1.0
Total credit default swap protection sold	$	170.0	$	3.3	$	170.0	3.8

Fair Value Hedges (Table)

					Cumulative amount of fair
					value hedging basis adjustment
Line item in the consolidated statements					increase included in the
of financial position in which the	Amortized cost of hedged item				amortized cost of the hedged item
hedged item is included	September 30, 2021		December 31, 2020		September 30, 2021		December 31, 2020
	(in millions)
Fixed maturities, available-for-sale (1):
Active hedging relationships	$	829.2	$	476.1	$	1.0	$	21.4
Discontinued hedging relationships		80.2		135.1		3.1		5.2
Total fixed maturities, available-for-sale in active or discontinued hedging relationships	$	909.4	$	611.2	$	4.1	$	26.6

(1) These amounts include the amortized cost basis of closed portfolios used to designate last-of-layer hedging relationships in which the hedged last layer amount is expected to remain at the end of the hedging relationship. As of September 30, 2021 and December 31, 2020, the amortized cost basis of the closed portfolios used in these hedging relationships was $347.7 million and $0.0 million, respectively, the cumulative basis adjustments associated with these hedging relationships was $(1.9) million and $0.0 million, respectively, and the amount of the designated hedged items were $210.0 million and $0.0 million, respectively.

Cash Flow Hedges (Table)

		Amount of gain (loss) recognized in AOCI on derivatives
		For the three months ended				For the nine months ended
Derivatives in cash		September 30,				September 30,
flow hedging relationships	Related hedged item	2021		2020		2021		2020
		(in millions)
Interest rate contracts	Fixed maturities, available-for-sale	$	—	$	—	$	—	$	(3.0)
Interest rate contracts	Investment contracts		0.6		—		0.6		—
Foreign exchange contracts	Fixed maturities, available-for-sale		30.5		(29.3)		52.3		17.2
Total		$	31.1	$	(29.3)	$	52.9	$	14.2

Effect of Fair Value and Cash Flow Hedges on Consolidated Statements of Operations (Table)

	For the three months ended September 30, 2021
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains (losses)		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	1,093.4	$	(152.0)	$	1,770.9
Losses on fair value hedging relationships:
Interest rate contracts:
Loss recognized on hedged item	$	(4.0)	$	—	$	—
Gain recognized on derivatives		5.4		—		—
Amortization of hedged item basis adjustments		(0.5)		—		—
Amounts related to periodic settlements on derivatives		(2.4)		—		(0.1)
Total loss recognized for fair value hedging relationships	$	(1.5)	$	—	$	(0.1)
Gains on cash flow hedging relationships:
Interest rate contracts:
Gain reclassified from AOCI on derivatives	$	3.8	$	—	$	—
Gain reclassified from AOCI as a result that a forecasted transaction is no longer probable of occurring		—		0.1		—
Foreign exchange contracts:
Amounts related to periodic settlements on derivatives		2.6		—		—
Total gain recognized for cash flow hedging relationships	$	6.4	$	0.1	$	—

	For the three months ended September 30, 2020
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	917.9	$	65.5	$	1,839.8
Losses on fair value hedging relationships:
Interest rate contracts:
Loss recognized on hedged item	$	(2.1)	$	—	$	—
Gain recognized on derivatives		1.8		—		—
Amortization of hedged item basis adjustments		(0.6)		—		—
Amounts related to periodic settlements on derivatives		(1.8)		—		—
Total loss recognized for fair value hedging relationships	$	(2.7)	$	—	$	—
Gains (losses) on cash flow hedging relationships:
Interest rate contracts:
Gain (loss) reclassified from AOCI on derivatives	$	4.4	$	0.1	$	(0.1)
Foreign exchange contracts:
Gain reclassified from AOCI on derivatives		—		0.2		—
Amounts related to periodic settlements on derivatives		2.0		—		—
Total gain (loss) recognized for cash flow hedging relationships	$	6.4	$	0.3	$	(0.1)

	For the nine months ended September 30, 2021
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains (losses)		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	3,167.0	$	(41.7)	$	4,958.4
Losses on fair value hedging relationships:
Interest rate contracts:
Loss recognized on hedged item	$	(20.5)	$	—	$	—
Gain recognized on derivatives		22.2		—		—
Amortization of hedged item basis adjustments		(1.5)		—		—
Amounts related to periodic settlements on derivatives		(6.8)		—		(0.1)
Total loss recognized for fair value hedging relationships	$	(6.6)	$	—	$	(0.1)
Gains (losses) on cash flow hedging relationships:
Interest rate contracts:
Gain (loss) reclassified from AOCI on derivatives	$	11.9	$	—	$	(0.1)
Gain reclassified from AOCI as a result that a forecasted transaction is no longer probable of occurring		—		0.5		—
Foreign exchange contracts:
Gain reclassified from AOCI on derivatives		—		0.7		—
Amounts related to periodic settlements on derivatives		7.0		—		—
Total gain (loss) recognized for cash flow hedging relationships	$	18.9	$	1.2	$	(0.1)

	For the nine months ended September 30, 2020
					Benefits,
	Net investment		Net realized		claims and
	income related		capital gains		settlement
	to hedges		related to		expenses
	of fixed		hedges of fixed		related to
	maturities,		maturities,		hedges of
	available-		available-		investment
	for-sale		for-sale		contracts
	(in millions)
Total amounts of consolidated statement of operations line items in which the effects of fair value and cash flow hedges are reported	$	2,846.1	$	169.5	$	6,299.8
Losses on fair value hedging relationships:
Interest rate contracts:
Gain recognized on hedged item	$	9.1	$	—	$	—
Loss recognized on derivatives		(9.7)		—		—
Amortization of hedged item basis adjustments		(1.9)		—		—
Amounts related to periodic settlements on derivatives		(4.1)		—		—
Total loss recognized for fair value hedging relationships	$	(6.6)	$	—	$	—
Gains (losses) on cash flow hedging relationships:
Interest rate contracts:
Gain (loss) reclassified from AOCI on derivatives	$	13.8	$	2.7	$	(0.1)
Foreign exchange contracts:
Gain reclassified from AOCI on derivatives		—		6.4		—
Amounts related to periodic settlements on derivatives		6.2		—		—
Total gain (loss) recognized for cash flow hedging relationships	$	20.0	$	9.1	$	(0.1)

Net Investment Hedges (Table)

					Amount of gain
	Amount of gain recognized				reclassified from AOCI into
	in AOCI on derivatives				net realized capital gains (losses)
	for the three months ended				for the three months ended
	September 30,				September 30,
Derivatives in net investment hedging relationships	2021		2020		2021		2020
	(in millions)
Foreign exchange contracts	$	1.3	$	0.8	$	—	$	(7.1)
Total	$	1.3	$	0.8	$	—	$	(7.1)

					Amount of gain
	Amount of gain				reclassified from AOCI into
	recognized in AOCI on derivatives				net realized capital gains (losses)
	for the nine months ended				for the nine months ended
	September 30,				September 30,
Derivatives in net investment hedging relationships	2021		2020		2021		2020
		(in millions)
Foreign exchange contracts	$	2.3	$	10.1	$	—	$	(7.1)
Total	$	2.3	$	10.1	$	—	$	(7.1)

Derivatives Not Designated as Hedging Instruments (Table)

	Amount of gain (loss) recognized in				Amount of gain (loss) recognized in
	net income on derivatives for the				net income on derivatives for the
	three months ended September 30,				nine months ended September 30,
Derivatives not designated as hedging instruments	2021		2020		2021		2020
	(in millions)
Interest rate contracts	$	(29.7)	$	(73.5)	$	(131.4)	$	407.0
Foreign exchange contracts		(91.9)		27.2		(117.9)		(5.4)
Equity contracts		18.9		(27.6)		(26.8)		(38.7)
Credit contracts		0.1		0.3		—		1.3
Other contracts		(75.2)		23.1		106.5		(339.2)
Total	$	(177.8)	$	(50.5)	$	(169.6)	$	25.0

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Insurance Liabilities (Tables)

9 Months Ended

Sep. 30, 2021

Insurance Liabilities

Liability for Unpaid Claims (Table)

	For the nine months ended September 30,
	2021		2020
	(in millions)
Balance at beginning of period	$	2,534.9	$	2,365.5
Less: reinsurance recoverable		436.9		403.8
Net balance at beginning of period		2,098.0		1,961.7
Incurred:
Current year		736.0		985.5
Prior years		441.7		37.9
Total incurred		1,177.7		1,023.4
Payments:
Current year		313.6		595.7
Prior years		773.2		335.1
Total payments		1,086.8		930.8
Net balance at end of period		2,188.9		2,054.3
Plus: reinsurance recoverable		437.9		425.4
Balance at end of period	$	2,626.8	$	2,479.7
Amounts not included in the rollforward above:
Claim adjustment expense liabilities	$	59.5	$	58.0

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Income Taxes (Tables)

9 Months Ended

Sep. 30, 2021

Income Taxes

Reconciliation Between U.S. Corporate Income Tax Rate and Effective Income Tax Rate from Continuing Operations (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
U.S. corporate income tax rate	21	%	21	%	21	%	21	%
Dividends received deduction	(4)		(7)		(4)		(5)
Tax credits	(3)		(5)		(2)		(3)
Interest exclusion from taxable income	(1)		(1)		(1)		(1)
Foreign country statutory rate differential	(1)		1		—		—
Impact of equity method presentation	—		(2)		(1)		(1)
State income taxes	1		2		1		1
Low income housing tax credit amortization	1		1		1		1
Other	1		4		—		2
Effective income tax rate	15	%	14	%	15	%	15	%

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Employee and Agent Benefits (Tables)

9 Months Ended

Sep. 30, 2021

Employee and Agent Benefits

Components of Net Periodic Benefit Cost (Income) (Table)

					Other postretirement
	Pension benefits				benefits
	For the three months ended				For the three months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Service cost	$	20.8	$	18.2	$	—	$	—
Interest cost		25.8		29.3		0.5		0.7
Expected return on plan assets		(45.7)		(39.1)		(1.1)		(9.0)
Amortization of prior service benefit		(4.2)		(4.3)		(0.3)		(0.3)
Recognized net actuarial (gain) loss		17.5		18.9		(0.2)		—
Net periodic benefit cost (income)	$	14.2	$	23.0	$	(1.1)	$	(8.6)

					Other postretirement
	Pension benefits				benefits
	For the nine months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Service cost	$	62.4	$	54.5	$	—	$	—
Interest cost		77.4		88.0		1.6		2.1
Expected return on plan assets		(137.0)		(117.5)		(3.5)		(27.0)
Amortization of prior service benefit		(12.6)		(12.7)		(0.8)		(0.8)
Recognized net actuarial (gain) loss		52.6		56.6		(0.4)		—
Net periodic benefit cost (income)	$	42.8	$	68.9	$	(3.1)	$	(25.7)

Obligations and Funded Status (Table)

	September 30,		December 31,
	2021		2020
	(in millions)
Change in plan assets
Fair value of plan assets, beginning balance	$	780.6	$	732.8
Actual return on plan assets		(2.9)		53.1
Employer contribution		1.1		1.5
Participant contributions		4.6		6.0
Benefits paid		(10.2)		(12.8)
Assets re-designated for non-retiree benefits		(656.5)		—
Fair value of plan assets, ending balance	$	116.7	$	780.6
Amount recognized in statement of financial position
Other assets	$	11.7	$	675.5
Other liabilities		(1.8)		(2.9)
Total	$	9.9	$	672.6

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Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2021

Stockholders' Equity

Common Stock Dividends (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
Dividends declared per common share	$	0.63	$	0.56	$	1.80	$	1.68

Reconciliation of Outstanding Common Shares (Table)

	For the three months ended		For the nine months ended
	September 30,		September 30,
	2021	2020	2021	2020
	(in millions)
Beginning balance	269.0	274.0	273.3	276.6
Shares issued	0.3	0.6	2.4	2.4
Treasury stock acquired	(3.2)	(0.1)	(9.6)	(4.5)
Ending balance	266.1	274.5	266.1	274.5

Other Comprehensive Income (Loss) (Table)

	For the three months ended						For the nine months ended
	September 30, 2021						September 30, 2021
	Pre-Tax		Tax		After-Tax		Pre-Tax		Tax		After-Tax
	(in millions)
Net unrealized losses on available-for-sale securities during the period	$	(546.4)	$	127.4	$	(419.0)	$	(2,461.6)	$	554.9	$	(1,906.7)
Reclassification adjustment for gains included in net income (1)		(2.6)		0.2		(2.4)		(3.8)		0.2		(3.6)
Adjustments for assumed changes in amortization patterns		32.2		(6.8)		25.4		121.3		(25.5)		95.8
Adjustments for assumed changes in policyholder liabilities		477.2		(104.8)		372.4		1,573.7		(365.3)		1,208.4
Net unrealized losses on available-for-sale securities		(39.6)		16.0		(23.6)		(770.4)		164.3		(606.1)
Net unrealized gains on derivative instruments during the period		31.2		(6.6)		24.6		53.7		(11.3)		42.4
Reclassification adjustment for gains included in net income (2)		(3.9)		0.8		(3.1)		(13.0)		2.7		(10.3)
Adjustments for assumed changes in amortization patterns		(0.5)		0.1		(0.4)		(0.5)		0.1		(0.4)
Adjustments for assumed changes in policyholder liabilities		(0.4)		—		(0.4)		1.0		(0.3)		0.7
Net unrealized gains on derivative instruments		26.4		(5.7)		20.7		41.2		(8.8)		32.4
Foreign currency translation adjustment		(189.3)		(4.0)		(193.3)		(209.5)		(4.6)		(214.1)
Unrecognized postretirement benefit obligation during the period		—		—		—		(9.1)		1.9		(7.2)
Amortization of amounts included in net periodic benefit cost (4)		12.8		(3.5)		9.3		38.8		(10.4)		28.4
Net unrecognized postretirement benefit obligation		12.8		(3.5)		9.3		29.7		(8.5)		21.2
Other comprehensive loss	$	(189.7)	$	2.8	$	(186.9)	$	(909.0)	$	142.4	$	(766.6)

	For the three months ended						For the nine months ended
	September 30, 2020						September 30, 2020
	Pre-Tax		Tax		After-Tax		Pre-Tax		Tax		After-Tax
	(in millions)
Net unrealized gains on available-for-sale securities during the period	$	960.1	$	(200.0)	$	760.1	$	2,378.1	$	(500.1)	$	1,878.0
Reclassification adjustment for (gains) losses included in net income (1)		2.9		(1.0)		1.9		(54.5)		12.6		(41.9)
Adjustments for assumed changes in amortization patterns		(109.0)		22.9		(86.1)		(112.9)		23.7		(89.2)
Adjustments for assumed changes in policyholder liabilities		(565.7)		116.5		(449.2)		(1,136.0)		241.9		(894.1)
Net unrealized gains on available-for-sale securities		288.3		(61.6)		226.7		1,074.7		(221.9)		852.8
Net unrealized gains (losses) on derivative instruments during the period		(29.2)		6.2		(23.0)		26.2		(4.9)		21.3
Reclassification adjustment for gains included in net income (2)		(4.6)		0.9		(3.7)		(22.8)		4.2		(18.6)
Adjustments for assumed changes in amortization patterns		0.2		—		0.2		0.9		(0.2)		0.7
Adjustments for assumed changes in policyholder liabilities		1.7		(0.3)		1.4		4.6		(0.9)		3.7
Net unrealized gains (losses) on derivative instruments		(31.9)		6.8		(25.1)		8.9		(1.8)		7.1
Foreign currency translation adjustment during the period		75.5		5.5		81.0		(231.1)		2.7		(228.4)
Reclassification adjustment for losses included in net income (3)		11.5		1.8		13.3		43.0		1.8		44.8
Foreign currency translation adjustment		87.0		7.3		94.3		(188.1)		4.5		(183.6)
Unrecognized postretirement benefit obligation during the period		—		—		—		0.6		(0.2)		0.4
Amortization of amounts included in net periodic benefit cost (4)		14.3		(3.8)		10.5		43.1		(11.6)		31.5
Net unrecognized postretirement benefit obligation		14.3		(3.8)		10.5		43.7		(11.8)		31.9
Other comprehensive income	$	357.7	$	(51.3)	$	306.4	$	939.2	$	(231.0)	$	708.2

(1) Pre-tax reclassification adjustments relating to available-for-sale securities are reported in net realized capital gains (losses) on the consolidated statements of operations.

(2) See Note 4, Derivative Financial Instruments, under the caption “Effect of Fair Value and Cash Flow Hedges on Consolidated Statements of Operations” for further details.

(3) The 2020 pre-tax reclassification adjustment primarily related to the release of the cumulative translation adjustment from the dissolution of a foreign subsidiary. The adjustment was reported in net realized capital gains (losses) on the consolidated statements of operations. For both the three and nine months ended September 30, 2020, $8.7 million of this reclassification relates to noncontrolling interest and is reported in net income attributable to noncontrolling interest on the consolidated statements of operations.

(4) Amount is comprised of amortization of prior service cost (benefit) and recognized net actuarial (gain) loss, which is reported in operating expenses on the consolidated statements of operations. See Note 7, Employee and Agent Benefits, under the caption “Components of Net Periodic Benefit Cost” for further details.

Accumulated Other Comprehensive Income (Loss) (Table)

			Noncredit
	Net unrealized		component of		Net unrealized		Foreign		Unrecognized		Accumulated
	gains on		impairment losses		gains		currency		postretirement		other
	available-for-sale		on fixed maturities		on derivative		translation		benefit		comprehensive
	securities(1)		available-for-sale		instruments		adjustment		obligation		income
	(in millions)
Balances as of July 1, 2020	$	3,388.2	$	—	$	85.6	$	(1,608.9)	$	(414.2)	$	1,450.7
Other comprehensive income during the period, net of adjustments		224.7		—		(21.4)		79.8		—		283.1
Amounts reclassified from AOCI		1.9		—		(3.7)		4.6		10.5		13.3
Other comprehensive income		226.6		—		(25.1)		84.4		10.5		296.4
Balances as of September 30, 2020	$	3,614.8	$	—	$	60.5	$	(1,524.5)	$	(403.7)	$	1,747.1
Balances as of July 1, 2021	$	3,555.8	$	—	$	29.9	$	(1,333.3)	$	(448.6)	$	1,803.8
Other comprehensive loss during the period, net of adjustments		(21.2)		—		23.8		(191.0)		—		(188.4)
Amounts reclassified from AOCI		(2.4)		—		(3.1)		—		9.3		3.8
Other comprehensive loss		(23.6)		—		20.7		(191.0)		9.3		(184.6)
Balances as of September 30, 2021	$	3,532.2	$	—	$	50.6	$	(1,524.3)	$	(439.3)	$	1,619.2

			Noncredit
	Net unrealized		component of		Net unrealized		Foreign		Unrecognized		Accumulated
	gains on		impairment losses		gains		currency		postretirement		other
	available-for-sale		on fixed maturities		on derivative		translation		benefit		comprehensive
	securities (1)		available-for-sale (2)		instruments		adjustment		obligation		income
	(in millions)
Balances as of January 1, 2020	$	2,806.0	$	(44.1)	$	53.4	$	(1,341.8)	$	(435.6)	$	1,037.9
Other comprehensive income during the period, net of adjustments		894.8		—		25.7		(218.8)		0.4		702.1
Amounts reclassified from AOCI		(41.9)		—		(18.6)		36.1		31.5		7.1
Other comprehensive income		852.9		—		7.1		(182.7)		31.9		709.2
Effects of implementation of accounting change related to credit losses, net		(44.1)		44.1		—		—		—		—
Balances as of September 30, 2020	$	3,614.8	$	—	$	60.5	$	(1,524.5)	$	(403.7)	$	1,747.1
Balances as of January 1, 2021	$	4,138.3	$	—	$	18.2	$	(1,312.9)	$	(460.5)	$	2,383.1
Other comprehensive loss during the period, net of adjustments		(602.5)		—		42.7		(211.4)		(7.2)		(778.4)
Amounts reclassified from AOCI		(3.6)		—		(10.3)		—		28.4		14.5
Other comprehensive loss		(606.1)		—		32.4		(211.4)		21.2		(763.9)
Balances as of September 30, 2021	$	3,532.2	$	—	$	50.6	$	(1,524.3)	$	(439.3)	$	1,619.2

(1) Net unrealized losses on available-for-sale debt securities for which an allowance for credit loss has been recorded were $16.2 million and $4.0 million as of September 30, 2021 and 2020, respectively.

(2) Prior to the implementation of authoritative guidance in 2020, the noncredit component of impairment losses on fixed maturities, available-for-sale was included as a separate component of stockholders’ equity.

Redeemable Noncontrolling Interest (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Balance at beginning of period	$	330.6	$	272.7	$	255.6	$	264.9
Net income (loss) attributable to redeemable noncontrolling interest		2.7		(1.5)		9.5		(9.5)
Redeemable noncontrolling interest of deconsolidated entities		(37.4)		(47.3)		(37.4)		(47.3)
Contributions from redeemable noncontrolling interest		60.2		49.7		148.2		124.3
Distributions to redeemable noncontrolling interest		(11.7)		(6.0)		(34.8)		(53.8)
Purchase of subsidiary shares from redeemable noncontrolling interest (1)		(0.7)		—		(6.1)		—
Change in redemption value of redeemable noncontrolling interest		—		1.7		8.6		(0.2)
Stock-based compensation attributable to redeemable noncontrolling interest		—		0.1		—		0.1
Other comprehensive income (loss) attributable to redeemable noncontrolling interest		(0.4)		9.1		(0.3)		—
Balance at end of period	$	343.3	$	278.5	$	343.3	$	278.5

(1) In second quarter 2021, we acquired the remaining interest in Principal Innovations, Inc. and its wholly owned subsidiary, RobustWealth, Inc.

XML

Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Measurements

Fair Value (Table)

	September 30, 2021
	Assets/		Amount
	(liabilities)		measured at
	measured at		net asset		Fair value hierarchy level
	fair value		value (4)		Level 1		Level 2		Level 3
	(in millions)
Assets
Fixed maturities, available-for-sale:
U.S. government and agencies	$	1,921.8	$	—	$	1,606.0	$	315.8	$	—
Non-U.S. governments		1,044.8		—		1.0		1,043.8		—
States and political subdivisions		9,233.0		—		—		9,233.0		—
Corporate		45,544.9		—		41.6		44,697.5		805.8
Residential mortgage-backed pass-through securities		2,882.6		—		—		2,882.6		—
Commercial mortgage-backed securities		5,283.2		—		—		5,269.0		14.2
Collateralized debt obligations (1)		3,566.3		—		—		3,515.9		50.4
Other debt obligations		7,080.5		—		—		7,058.3		22.2
Total fixed maturities, available-for-sale		76,557.1		—		1,648.6		74,015.9		892.6
Fixed maturities, trading		413.5		—		0.5		413.0		—
Equity securities		2,428.2		—		1,089.9		1,338.3		—
Derivative assets (2)		328.1		—		—		327.4		0.7
Other investments		784.4		92.6		312.0		377.1		2.7
Cash equivalents		1,786.9		—		65.9		1,721.0		—
Sub-total excluding separate account assets		82,298.2		92.6		3,116.9		78,192.7		896.0
Separate account assets		177,850.5		8,165.2		110,111.4		58,306.6		1,267.3
Total assets	$	260,148.7	$	8,257.8	$	113,228.3	$	136,499.3	$	2,163.3
Liabilities
Investment and universal life contracts (3)	$	(355.3)	$	—	$	—	$	—	$	(355.3)
Derivative liabilities (2)		(242.9)		—		—		(242.2)		(0.7)
Other liabilities		(1.8)		—		—		(1.8)		—
Total liabilities	$	(600.0)	$	—	$	—	$	(244.0)	$	(356.0)
Net assets	$	259,548.7	$	8,257.8	$	113,228.3	$	136,255.3	$	1,807.3

	December 31, 2020
	Assets/		Amount
	(liabilities)		measured at
	measured at		net asset		Fair value hierarchy level
	fair value		value (4)		Level 1		Level 2		Level 3
	(in millions)
Assets
Fixed maturities, available-for-sale:
U.S. government and agencies	$	2,111.5	$	—	$	1,768.3	$	343.2	$	—
Non-U.S. governments		1,073.7		—		1.1		1,072.6		—
States and political subdivisions		9,167.8		—		—		9,167.8		—
Corporate		47,354.8		—		—		47,064.0		290.8
Residential mortgage-backed pass-through securities		2,986.8		—		—		2,986.8		—
Commercial mortgage-backed securities		4,942.3		—		—		4,929.1		13.2
Collateralized debt obligations (1)		4,027.5		—		—		4,000.3		27.2
Other debt obligations		7,045.9		—		—		7,016.7		29.2
Total fixed maturities, available-for-sale		78,710.3		—		1,769.4		76,580.5		360.4
Fixed maturities, trading		532.1		—		0.5		531.6		—
Equity securities		2,013.4		—		659.7		1,353.7		—
Derivative assets (2)		463.5		—		—		462.9		0.6
Other investments		746.3		75.7		252.8		385.9		31.9
Cash equivalents		1,466.4		—		38.3		1,428.1		—
Sub-total excluding separate account assets		83,932.0		75.7		2,720.7		80,742.7		392.9
Separate account assets		175,951.4		155.8		102,550.5		64,351.9		8,893.2
Total assets	$	259,883.4	$	231.5	$	105,271.2	$	145,094.6	$	9,286.1
Liabilities
Investment and universal life contracts (3)	$	(467.8)	$	—	$	—	$	—	$	(467.8)
Derivative liabilities (2)		(186.1)		—		—		(180.4)		(5.7)
Other liabilities		(0.4)		—		—		(0.4)		—
Total liabilities	$	(654.3)	$	—	$	—	$	(180.8)	$	(473.5)
Net assets	$	259,229.1	$	231.5	$	105,271.2	$	144,913.8	$	8,812.6

(1) Primarily consists of collateralized loan obligations backed by secured corporate loans.

(2) Within the consolidated statements of financial position, derivative assets are reported with other investments and derivative liabilities are reported with other liabilities. The amounts are presented gross in the tables above to reflect the presentation on the consolidated statements of financial position; however, are presented net for purposes of the rollforward in the Changes in Level 3 Fair Value Measurements tables. Refer to Note 4, Derivative Financial Instruments, for further information on fair value by class of derivative instruments.

(3) Includes bifurcated embedded derivatives that are reported at net asset (liability) fair value within the same line item in the consolidated statements of financial position in which the host contract is reported.

(4) Certain investments are measured at fair value using the NAV per share (or its equivalent) practical expedient and have not been classified in the fair value hierarchy. Other investments using the NAV practical expedient consist of certain fund interests that are restricted until maturity with unfunded commitments totaling $10.8 million and $15.1 million as of September 30, 2021 and December 31, 2020, respectively. Separate account assets using the NAV practical expedient consist of hedge funds and a real estate fund with varying investment strategies that also have a variety of redemption terms and conditions. We do not have unfunded commitments associated with these funds.

Reconciliation for All Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Table)

	For the three months ended September 30, 2021
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	July 1,		net income		comprehensive		settlements		into		out of		September 30,
	2021		(2)		income (3)		(4)		Level 3		Level 3		2021
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	549.0	$	(7.8)	$	10.5	$	229.0	$	25.1	$	—	$	805.8
Commercial mortgage-backed securities		11.6		—		(0.1)		2.7		—		—		14.2
Collateralized debt obligations		195.6		—		—		27.6		—		(172.8)		50.4
Other debt obligations		61.4		—		(0.2)		(14.0)		—		(25.0)		22.2
Total fixed maturities, available-for-sale		817.6		(7.8)		10.2		245.3		25.1		(197.8)		892.6
Other investments		44.5		(0.1)		(0.6)		(41.1)		—		—		2.7
Separate account assets (1)		1,217.4		71.0		—		(21.1)		—		—		1,267.3
Liabilities
Investment and universal life contracts		(281.6)		(80.4)		0.1		6.6		—		—		(355.3)
Derivatives
Net derivative assets (liabilities)		(8.9)		(1.8)		—		10.7		—		—		—

	For the three months ended September 30, 2020
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	July 1,		net income		comprehensive		settlements		into		out of		September 30,
	2020		(2)		income (3)		(4)		Level 3		Level 3		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	275.0	$	(1.0)	$	4.3	$	27.5	$	—	$	(24.5)	$	281.3
Commercial mortgage-backed securities		13.1		(0.4)		—		—		0.3		—		13.0
Collateralized debt obligations		2.8		(0.9)		0.4		16.1		—		—		18.4
Other debt obligations		71.2		—		(0.2)		(35.1)		—		(6.8)		29.1
Total fixed maturities, available-for-sale		362.1		(2.3)		4.5		8.5		0.3		(31.3)		341.8
Other investments		38.7		2.7		—		(11.0)		—		—		30.4
Separate account assets (1)		8,821.3		72.3		—		(38.4)		—		—		8,855.2
Liabilities
Investment and universal life contracts		(576.0)		23.2		—		0.4		—		—		(552.4)
Derivatives
Net derivative assets (liabilities)		(14.2)		4.7		—		(0.9)		—		—		(10.4)

	For the nine months ended September 30, 2021
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	January 1,		net income		comprehensive		settlements		into		out of		September 30,
	2021		(2)		income (3)		(4)		Level 3		Level 3		2021
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	290.8	$	(12.7)	$	5.8	$	354.3	$	167.6	$	—	$	805.8
Commercial mortgage-backed securities		13.2		(1.0)		(0.6)		2.6		—		—		14.2
Collateralized debt obligations		27.2		(2.0)		1.8		337.5		84.1		(398.2)		50.4
Other debt obligations		29.2		—		0.6		(3.2)		20.6		(25.0)		22.2
Total fixed maturities, available-for-sale		360.4		(15.7)		7.6		691.2		272.3		(423.2)		892.6
Other investments		31.9		12.5		(0.6)		(41.1)		—		—		2.7
Separate account assets (1)		8,893.2		215.6		—		(7,841.5)		—		—		1,267.3
Liabilities
Investment and universal life contracts		(467.8)		89.3		0.2		23.0		—		—		(355.3)
Derivatives
Net derivative assets (liabilities)		(5.1)		(6.2)		—		11.3		—		—		—

	For the nine months ended September 30, 2020
	Beginning						Net						Ending
	asset/		Total realized/unrealized				purchases,						asset/
	(liability)		gains (losses)				sales,						(liability)
	balance				Included in		issuances						balance
	as of		Included in		other		and		Transfers		Transfers		as of
	January 1,		net income		comprehensive		settlements		into		out of		September 30,
	2020		(2)		income (3)		(4)		Level 3		Level 3		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	81.7	$	(1.0)	$	(6.3)	$	38.3	$	342.0	$	(173.4)	$	281.3
Commercial mortgage-backed securities		12.9		(1.3)		1.1		—		0.3		—		13.0
Collateralized debt obligations		199.0		(1.9)		(22.2)		158.1		—		(314.6)		18.4
Other debt obligations		91.3		—		(1.6)		(37.8)		46.1		(68.9)		29.1
Total fixed maturities, available-for-sale		384.9		(4.2)		(29.0)		158.6		388.4		(556.9)		341.8
Fixed maturities, trading		0.3		—		—		—		—		(0.3)		—
Other investments		39.0		5.0		(2.9)		(10.7)		—		—		30.4
Separate account assets (1)		8,968.0		225.4		—		(338.2)		—		—		8,855.2
Liabilities
Investment and universal life contracts		(214.2)		(335.5)		(0.3)		(2.4)		—		—		(552.4)
Derivatives
Net derivative assets (liabilities)		13.0		6.5		—		(3.4)		—		(26.5)		(10.4)

(1) Gains and losses for separate account assets do not impact net income as the change in value of separate account assets is offset by a change in value of separate account liabilities. Foreign currency translation adjustments related to the Principal International segment separate account assets are recorded in AOCI and are offset by foreign currency translation adjustments of the corresponding separate account liabilities.

(2) Both realized gains (losses) and mark-to-market unrealized gains (losses) are generally reported in net realized capital gains (losses) within the consolidated statements of operations. Realized and unrealized gains (losses) on certain securities with an investment objective to realize economic value through mark-to-market changes are reported in net investment income within the consolidated statements of operations. Changes in unrealized gains (losses) included in net income relating to positions still held were:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	(7.8)	$	—	$	(12.6)	$	—
Commercial mortgage-backed securities		—		(0.4)		—		(1.3)
Collateralized debt obligations		—		(0.9)		(2.0)		(1.9)
Total fixed maturities, available-for-sale		(7.8)		(1.3)		(14.6)		(3.2)
Other investments		(0.1)		1.7		12.6		4.0
Separate account assets		71.5		72.3		215.6		211.2
Liabilities
Investment and universal life contracts		(76.4)		29.4		86.1		(344.8)
Derivatives
Net derivative assets (liabilities)		(0.7)		4.6		(0.6)		5.2

(3) Changes in unrealized gains (losses) included in OCI, including foreign currency translation adjustments related to our Principal International segment, relating to positions still held were:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	10.6	$	3.6	$	4.4	$	(2.1)
Commercial mortgage-backed securities		(0.2)		—		(0.6)		1.1
Collateralized debt obligations		—		0.3		2.1		(0.6)
Total fixed maturities, available-for-sale		10.4		3.9		5.9		(1.6)
Other investments		(0.6)		—		(0.6)		(2.9)
Liabilities
Investment and universal life contracts		0.1		—		0.2		(0.3)

(4) Gross purchases, sales, issuances and settlements were:

	For the three months ended September 30, 2021
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	268.5	$	(3.4)	$	—	$	(36.1)	$	229.0
Commercial mortgage-backed securities		2.7		—		—		—		2.7
Collateralized debt obligations		27.6		—		—		—		27.6
Other debt obligations		—		—		—		(14.0)		(14.0)
Total fixed maturities, available-for-sale		298.8		(3.4)		—		(50.1)		245.3
Other investments		—		(41.1)		—		—		(41.1)
Separate account assets (5)		—		(2.0)		(34.4)		15.3		(21.1)
Liabilities
Investment and universal life contracts		—		—		(3.5)		10.1		6.6
Derivatives
Net derivative assets (liabilities)		—		10.7		—		—		10.7

	For the three months ended September 30, 2020
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	42.6	$	(4.4)	$	—	$	(10.7)	$	27.5
Collateralized debt obligations		16.0		—		—		0.1		16.1
Other debt obligations		—		—		—		(35.1)		(35.1)
Total fixed maturities, available-for-sale		58.6		(4.4)		—		(45.7)		8.5
Other investments		—		(11.0)		—		—		(11.0)
Separate account assets (5)		4.2		(0.2)		(42.2)		(0.2)		(38.4)
Liabilities
Investment and universal life contracts		—		—		(6.3)		6.7		0.4
Derivatives
Net derivative assets (liabilities)		—		(0.9)		—		—		(0.9)

	For the nine months ended September 30, 2021
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	469.3	$	(14.3)	$	—	$	(100.7)	$	354.3
Commercial mortgage-backed securities		2.7		—		—		(0.1)		2.6
Collateralized debt obligations		362.0		—		—		(24.5)		337.5
Other debt obligations		25.1		—		—		(28.3)		(3.2)
Total fixed maturities, available-for-sale		859.1		(14.3)		—		(153.6)		691.2
Other investments		—		(41.1)		—		—		(41.1)
Separate account assets (5)		36.7		(7,795.2)		(175.4)		92.4		(7,841.5)
Liabilities
Investment and universal life contracts		—		—		(11.7)		34.7		23.0
Derivatives
Net derivative assets (liabilities)		—		11.3		—		—		11.3

	For the nine months ended September 30, 2020
									Net purchases,
									sales, issuances
	Purchases		Sales		Issuances		Settlements		and settlements
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	77.5	$	(5.4)	$	—	$	(33.8)	$	38.3
Collateralized debt obligations		157.8		—		—		0.3		158.1
Other debt obligations		14.3		—		—		(52.1)		(37.8)
Total fixed maturities, available-for-sale		249.6		(5.4)		—		(85.6)		158.6
Other investments		0.3		(11.0)		—		—		(10.7)
Separate account assets (5)		72.2		(185.8)		(269.0)		44.4		(338.2)
Liabilities
Investment and universal life contracts		—		—		(18.5)		16.1		(2.4)
Derivatives
Net derivative assets (liabilities)		—		(3.4)		—		—		(3.4)

(5) Issuances and settlements include amounts related to mortgage encumbrances associated with real estate in our separate accounts.

Transfers (Table)

	For the three months ended September 30, 2021
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	25.1	$	—	$	—
Collateralized debt obligations		—		—		—		172.8
Other debt obligations		—		—		—		25.0
Total fixed maturities, available-for-sale		—		25.1		—		197.8

	For the three months ended September 30, 2020
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	—	$	—	$	24.5
Commercial mortgage-backed securities		—		0.3		—		—
Other debt obligations		—		—		—		6.8
Total fixed maturities, available-for-sale		—		0.3		—		31.3

	For the nine months ended September 30, 2021
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	167.6	$	—	$	—
Collateralized debt obligations		—		84.1		—		398.2
Other debt obligations		—		20.6		—		25.0
Total fixed maturities, available-for-sale		—		272.3		—		423.2

	For the nine months ended September 30, 2020
	Transfers out		Transfers out		Transfers out		Transfers out
	of Level 1 into		of Level 2 into		of Level 3 into		of Level 3 into
	Level 3		Level 3		Level 1		Level 2
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	—	$	342.0	$	—	$	173.4
Commercial mortgage-backed securities		—		0.3		—		—
Collateralized debt obligations		—		—		—		314.6
Other debt obligations		—		46.1		—		68.9
Total fixed maturities, available-for-sale		—		388.4		—		556.9
Fixed maturities, trading		—		—		—		0.3
Derivatives
Net derivative assets (liabilities)		—		—		—		26.5

Quantitative Information about Level 3 Fair Value Measurements (Table)

	September 30, 2021
	Assets /
	(liabilities)
	measured at		Valuation	Unobservable	Input/range of				Weighted
	fair value		technique(s)	input description	inputs				average
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	746.9	Discounted cash flow	Discount rate (1)	0.7	%   -	18.6	%	7.0	%
				Illiquidity premium	0	basis points (“bps”)-	70	bps	7	bps
				Potential loss severity			16.4	%	16.4	%
				Probability of default			100.0	%	100.0	%
Commercial mortgage-backed securities		2.7	Discounted cash flow	Discount rate (1)			3.9	%	3.9	%
Collateralized debt obligations		1.0	Discounted cash flow	Discount rate (1)			3.0	%	3.0	%
				Illiquidity premium			291	bps	291	bps
Other debt obligations		22.2	Discounted cash flow	Discount rate (1)	2.5	%   -	10.0	%	2.8	%
				Illiquidity premium	225	bps-	500	bps	235	bps
Other investments		1.3	Market comparables - other investments	Revenue multiples (2)	6.8	x    -	9.1	x	8.0	x
Separate account assets		1,268.0	Discounted cash flow - mortgage loans	Discount rate (1)			1.2	%	1.2	%
				Illiquidity premium			60	bps	60	bps
				Credit spread rate			109	bps	109	bps
			Discounted cash flow - real estate	Discount rate (1)	5.5	%   -	11.9	%	7.5	%
				Terminal capitalization rate	4.5	%   -	9.3	%	5.9	%
				Average market rent growth rate	1.5	%   -	3.6	%	2.8	%
			Discounted cash flow - real estate debt	Loan to value	29.0	%   -	60.2	%	43.6	%
				Market interest rate	2.3	%   -	4.5	%	2.8	%

Liabilities
Investment and universal life contracts (6)	(355.3)	Discounted cash flow	Long duration interest rate	1.9	%   -	2.1	%	(3)	2.0%
			Long-term equity market volatility	17.9	%   -	32.0	%		22.1%
			Nonperformance risk	0.2	%   -	1.0	%		0.8%
			Utilization rate	See note (4)
			Lapse rate	0.0	%   -	17.0	%		5.1%
			Mortality rate	See note (5)

	December 31, 2020
	Assets /
	(liabilities)
	measured at		Valuation	Unobservable	Input/range of					Weighted
	fair value		technique(s)	input description	inputs					average
	(in millions)
Assets
Fixed maturities, available-for-sale:
Corporate	$	286.1	Discounted cash flow	Discount rate (1)		0.9	%   -	11.7	%	7.3	%
				Illiquidity premium		0	bps-	60	bps	19	bps
				Comparability adjustment		0	bps-	769	bps	359	bps
				Potential loss severity				54.6	%	54.6	%
				Probability of default				100.0	%	100.0	%
Commercial mortgage-backed securities		1.1	Discounted cash flow	Probability of default				100.0	%	100.0	%
				Potential loss severity				78.4	%	78.4	%
Collateralized debt obligations		0.7	Discounted cash flow	Potential loss severity				40.5	%	40.5	%
				Probability of default				100.0	%	100.0	%
Other debt obligations		0.8	Discounted cash flow	Discount rate (1)				10.0	%	10.0	%
				Illiquidity premium				500	bps	500	bps
Other investments		30.4	Discounted cash flow - other investments	Discount rate (1)		25.0	%   -	30.0	%	27.5	%
				Terminal earnings before interest, taxes, depreciation and amortization multiple		3.8	x    -	4.7	x	4.2	x
			Market comparables - other investments	Revenue multiples (2)		6.0	x    -	8.0	x	7.0	x
			Discounted cash flow - real estate	Discount rate (1)				6.5	%	6.5	%
				Terminal capitalization rate				5.3	%	5.3	%
				Average market rent growth rate				2.6	%	2.6	%
			Discounted cash flow - real estate debt	Loan to value				52.6	%	52.6	%
				Credit spread				3.3	%	3.3	%
Separate account assets		8,893.2	Discounted cash flow - mortgage loans	Discount rate (1)				1.2	%	1.2	%
				Illiquidity premium				60	bps	60	bps
				Credit spread rate				110	bps	110	bps
			Discounted cash flow - real estate	Discount rate (1)		5.6	%   -	11.9	%	6.9	%
				Terminal capitalization rate		4.5	%   -	9.3	%	5.7	%
				Average market rent growth rate		1.5	%   -	4.8	%	3.0	%
			Discounted cash flow - real estate debt	Loan to value		6.3	%   -	74.2	%	47.5	%
				Market interest rate		2.0	%   -	5.0	%	3.4	%

	December 31, 2020
	Assets /
	(liabilities)
	measured at		Valuation	Unobservable	Input/range of					Weighted
	fair value		technique(s)	input description	inputs					average
	(in millions)
Liabilities
Investment and universal life contracts (6)		(467.8)	Discounted cash flow	Long duration interest rate		1.2	%   -	1.4	% (3)	1.3	%
				Long-term equity market volatility		17.6	%   -	26.9	%	19.6	%
				Nonperformance risk		0.1	%   -	1.4	%	0.9	%
				Utilization rate		See note (4)
				Lapse rate		0.0	%   -	16.0	%	5.8	%
				Mortality rate		See note (5)

(1) Represents market comparable interest rate or an index adjusted rate used as the base rate in the discounted cash flow analysis prior to any illiquidity or other adjustments, where applicable.

(2) Revenue multiples are amounts used when we have determined market participants would use such multiples to value the investments.

(3) Represents the range of rate curves used in the valuation analysis that we have determined market participants would use when pricing the instrument. Derived from interpolation between various observable swap rates.

(4) This input factor is the number of contractholders taking withdrawals as well as the amount and timing of the withdrawals and a range does not provide a meaningful presentation.

(5) This input is based on an appropriate industry mortality table and a range does not provide a meaningful presentation.

(6) Includes bifurcated embedded derivatives that are reported at net asset (liability) fair value within the same line item in the consolidated statements of financial position in which the host contract is reported.

Fair Value Option (Table)

	September 30, 2021		December 31, 2020
	(in millions)
Real estate ventures (1)
Fair value	$	—	$	28.5

(1) Reported with other investments in the consolidated statements of financial position.

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
	(in millions)
Real estate ventures
Change in fair value pre-tax gain (1)	$	(0.1)	$	1.7	$	12.6	$	4.0

(1) Reported in net investment income on the consolidated statements of operations.

Financial Instruments Not Reported at Fair Value (Table)

	September 30, 2021
					Fair value hierarchy level
	Carrying amount		Fair value		Level 1		Level 2		Level 3
	(in millions)
Assets (liabilities)
Mortgage loans	$	19,426.0	$	20,504.4	$	—	$	—	$	20,504.4
Policy loans		762.1		961.7		—		—		961.7
Other investments		344.7		334.5		—		244.2		90.3
Cash and cash equivalents		1,358.5		1,358.5		1,334.4		24.1		—
Investment contracts		(36,067.9)		(36,717.2)		—		(7,500.2)		(29,217.0)
Short-term debt		(74.3)		(74.3)		—		(74.3)		—
Long-term debt		(4,279.7)		(4,827.7)		—		(4,788.3)		(39.4)
Separate account liabilities		(161,410.9)		(160,362.4)		—		—		(160,362.4)
Bank deposits (1)		(385.3)		(387.8)		—		(387.8)		—
Cash collateral payable		(176.9)		(176.9)		(176.9)		—		—

	December 31, 2020
					Fair value hierarchy level
	Carrying amount		Fair value		Level 1		Level 2		Level 3
	(in millions)
Assets (liabilities)
Mortgage loans	$	17,343.0	$	18,762.6	$	—	$	—	$	18,762.6
Policy loans		784.0		1,037.7		—		—		1,037.7
Other investments		347.2		338.5		—		247.1		91.4
Cash and cash equivalents		1,383.4		1,383.4		1,369.7		13.7		—
Investment contracts		(35,449.9)		(36,738.7)		—		(5,276.9)		(31,461.8)
Short-term debt		(84.7)		(84.7)		—		(84.7)		—
Long-term debt		(4,279.2)		(4,949.9)		—		(4,908.7)		(41.2)
Separate account liabilities		(160,316.4)		(159,129.2)		—		—		(159,129.2)
Bank deposits (1)		(423.5)		(429.7)		—		(429.7)		—
Cash collateral payable		(224.6)		(224.6)		(224.6)		—		—

(1) Excludes deposit liabilities without defined or contractual maturities.

XML

Segment Information (Tables)

9 Months Ended

Sep. 30, 2021

Segment Information

Reconciliation of Assets from Segment to Consolidated (Table)

	September 30, 2021		December 31, 2020
	(in millions)
Assets:
Retirement and Income Solutions	$	216,039.3	$	207,288.4
Principal Global Investors		2,358.4		2,294.3
Principal International		43,524.9		51,707.6
U.S. Insurance Solutions		32,702.7		31,438.9
Corporate		4,283.1		3,898.5
Total consolidated assets	$	298,908.4	$	296,627.7

Reconciliation of Operating Revenues and Pre-tax Operating Earnings (Losses) by Segment (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Operating revenues by segment:
Retirement and Income Solutions:
Retirement and Income Solutions – Fee	$	580.9	$	531.6	$	1,723.9	$	1,584.1
Retirement and Income Solutions – Spread		1,072.0		1,048.3		2,823.9		4,081.5
Total Retirement and Income Solutions (1)		1,652.9		1,579.9		4,547.8		5,665.6
Principal Global Investors (2)		465.2		382.8		1,334.1		1,126.5
Principal International		328.1		225.3		942.3		802.2
U.S. Insurance Solutions:
Specialty Benefits insurance		684.4		618.1		2,007.9		1,884.1
Individual Life insurance		505.7		503.3		1,539.1		1,448.8
Eliminations		—		—		(0.1)		(0.1)
Total U.S. Insurance Solutions		1,190.1		1,121.4		3,546.9		3,332.8
Corporate		(14.3)		(17.0)		(21.8)		(24.0)
Total segment operating revenues		3,622.0		3,292.4		10,349.3		10,903.1
Net realized capital gains (losses), net of related revenue adjustments		(188.2)		31.6		(157.0)		105.4
Adjustments related to equity method investments		(10.1)		(13.3)		(20.7)		(31.9)
Total revenues per consolidated statements of operations	$	3,423.7	$	3,310.7	$	10,171.6	$	10,976.6
Pre-tax operating earnings (losses) by segment:
Retirement and Income Solutions	$	243.2	$	281.1	$	811.4	$	700.1
Principal Global Investors		190.1		140.9		515.6		361.0
Principal International		81.0		58.7		203.8		184.0
U.S. Insurance Solutions		151.6		(134.1)		373.4		150.4
Corporate		(97.1)		(69.7)		(273.6)		(244.8)
Total segment pre-tax operating earnings		568.8		276.9		1,630.6		1,150.7
Pre-tax net realized capital gains (losses), as adjusted (3)		(133.5)		9.9		(141.7)		(41.1)
Adjustments related to equity method investments and noncontrolling interest		(7.2)		(11.7)		(14.3)		(7.7)
Income before income taxes per consolidated statements of operations	$	428.1	$	275.1	$	1,474.6	$	1,101.9

(1) Reflects inter-segment revenues of $106.0 million and $87.5 million for the three months ended September 30, 2021 and 2020, respectively, $307.7 million and $249.1 million for the nine months ended September 30, 2021 and 2020, respectively.

(2) Reflects inter-segment revenues of $79.7 million and $65.6 million for the three months ended September 30, 2021 and 2020, respectively, $223.9 million and $200.7 million for the nine months ended September 30, 2021 and 2020, respectively.

(3) Pre-tax net realized capital gains (losses), as adjusted, is derived as follows:

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Net realized capital gains (losses):
Net realized capital gains (losses)	$	(152.0)	$	65.5	$	(41.7)	$	169.5
Derivative and hedging-related revenue adjustments		(30.6)		(37.0)		(108.4)		(85.7)
Market value adjustments to fee revenues		(0.2)		—		(0.6)		—
Adjustments related to equity method investments		(10.8)		0.2		(18.3)		(4.9)
Adjustments related to sponsored investment funds		5.8		5.1		15.9		12.5
Recognition of front-end fee revenue		(0.4)		(2.2)		(3.9)		14.0
Net realized capital gains (losses), net of related revenue adjustments		(188.2)		31.6		(157.0)		105.4
Amortization of deferred acquisition costs and other actuarial balances		9.9		62.1		22.8		(67.7)
Capital gains distributed		(33.0)		(43.7)		(86.3)		(15.7)
Market value adjustments of embedded derivatives		77.8		(40.1)		78.8		(63.1)
Pre-tax net realized capital gains (losses), as adjusted (a)	$	(133.5)	$	9.9	$	(141.7)	$	(41.1)

(a) As adjusted before noncontrolling interest capital gains (losses).

XML

Revenues from Contracts with Customers (Tables)

9 Months Ended

Sep. 30, 2021

Revenues from Contracts with Customers

Disaggregation of Revenues from Contracts with Customers (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Revenue from contracts with customers by segment:
Retirement and Income Solutions:
Retirement and Income Solutions – Fee	$	144.2	$	133.4	$	433.8	$	441.0
Retirement and Income Solutions – Spread		2.4		2.1		7.2		6.2
Total Retirement and Income Solutions		146.6		135.5		441.0		447.2
Principal Global Investors		453.5		377.0		1,303.6		1,108.1
Principal International		125.1		111.1		373.5		322.2
U.S. Insurance Solutions:
Specialty Benefits insurance		3.9		3.9		11.4		11.2
Individual Life insurance		15.8		12.0		44.5		35.8
Eliminations		—		—		(0.1)		(0.1)
Total U.S. Insurance Solutions		19.7		15.9		55.8		46.9
Corporate		51.6		42.4		155.9		111.2
Total segment revenue from contracts with customers		796.5		681.9		2,329.8		2,035.6
Adjustments for fees and other revenues not within the scope of revenue recognition guidance (1)		455.9		463.3		1,385.7		1,283.0
Pre-tax other adjustments (2)		(0.6)		(2.2)		(4.5)		14.0
Total fees and other revenues per consolidated statements of operations	$	1,251.8	$	1,143.0	$	3,711.0	$	3,332.6

(1) Fees and other revenues not within the scope of the revenue recognition guidance primarily represent revenue on contracts accounted for under the financial instruments or insurance contracts standards.

(2) Pre-tax other adjustments relate to the recognition of deferred front-end fee revenues for sales charges on retirement and life insurance products and certain market value adjustments to fee revenues.

Retirement and Income Solutions | Retirement and Income Solutions - Fee

Revenues from Contracts with Customers

Disaggregation of Revenues from Contracts with Customers (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021			2020
	(in millions)
Administrative service fee revenue	$	144.2	$	132.8	$	431.4	$	439.7
Other fee revenue		—		0.6		2.4		1.3
Total revenues from contracts with customers		144.2		133.4		433.8		441.0
Fees and other revenues not within the scope of revenue recognition guidance		324.1		293.5		964.3		829.1
Total fees and other revenues		468.3		426.9		1,398.1		1,270.1
Premiums and other considerations		—		0.7		0.5		3.4
Net investment income		112.6		104.0		325.3		310.6
Total operating revenues	$	580.9	$	531.6	$	1,723.9	$	1,584.1

Retirement and Income Solutions | Retirement and Income Solutions - Spread

Revenues from Contracts with Customers

Disaggregation of Revenues from Contracts with Customers (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Deposit account fee revenue	$	2.2	$	2.1	$	6.7	$	6.2
Commission income		0.2		—		0.5		—
Total revenues from contracts with customers		2.4		2.1		7.2		6.2
Fees and other revenues not within the scope of revenue recognition guidance		2.1		1.9		6.8		7.8
Total fees and other revenues		4.5		4.0		14.0		14.0
Premiums and other considerations		482.1		517.1		1,111.9		2,497.7
Net investment income		585.4		527.2		1,698.0		1,569.8
Total operating revenues	$	1,072.0	$	1,048.3	$	2,823.9	$	4,081.5

Principal Global Investors

Revenues from Contracts with Customers

Disaggregation of Revenues from Contracts with Customers (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Management fee revenue	$	389.9	$	330.2	$	1,119.9	$	954.7
Other fee revenue		63.6		46.8		183.7		153.4
Total revenues from contracts with customers		453.5		377.0		1,303.6		1,108.1
Fees and other revenues not within the scope of revenue recognition guidance		11.0		4.8		27.1		14.2
Total fees and other revenues		464.5		381.8		1,330.7		1,122.3
Net investment income		0.7		1.0		3.4		4.2
Total operating revenues	$	465.2	$	382.8	$	1,334.1	$	1,126.5

Principal International

Revenues from Contracts with Customers

Disaggregation of Revenues from Contracts with Customers (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Management fee revenue	$	123.0	$	110.1	$	367.8	$	319.3
Other fee revenue		2.1		1.0		5.7		2.9
Total revenues from contracts with customers		125.1		111.1		373.5		322.2
Fees and other revenues not within the scope of revenue recognition guidance		1.0		1.4		3.1		4.2
Total fees and other revenues		126.1		112.5		376.6		326.4
Premiums and other considerations		36.6		16.6		105.8		130.2
Net investment income		165.4		96.2		459.9		345.6
Total operating revenues	$	328.1	$	225.3	$	942.3	$	802.2
Revenues from contracts with customers by region:
Latin America	$	91.5	$	80.7	$	273.3	$	236.5
Asia		33.5		30.5		99.3		85.8
Principal International corporate / regional offices		0.5		0.2		2.0		0.7
Eliminations		(0.4)		(0.3)		(1.1)		(0.8)
Total revenues from contracts with customers	$	125.1	$	111.1	$	373.5	$	322.2

U.S. Insurance Solutions

Revenues from Contracts with Customers

Disaggregation of Revenues from Contracts with Customers (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Specialty Benefits insurance:
Administrative service fees	$	3.9	$	3.9	$	11.4	$	11.2
Total revenues from contracts with customers		3.9		3.9		11.4		11.2
Fees and other revenues not within the scope of revenue recognition guidance		5.4		4.9		14.9		14.4
Total fees and other revenues		9.3		8.8		26.3		25.6
Premiums and other considerations		629.6		570.9		1,851.7		1,741.8
Net investment income		45.5		38.4		129.9		116.7
Total operating revenues	$	684.4	$	618.1	$	2,007.9	$	1,884.1

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions)
Individual Life insurance:
Administrative service fees	$	6.8	$	5.4	$	19.3	$	16.1
Commission income		9.0		6.6		25.2		19.7
Total revenues from contracts with customers		15.8		12.0		44.5		35.8
Fees and other revenues not within the scope of revenue recognition guidance		204.1		232.6		635.8		634.4
Total fees and other revenues		219.9		244.6		680.3		670.2
Premiums and other considerations		82.2		79.0		265.4		255.3
Net investment income		203.6		179.7		593.4		523.3
Total operating revenues	$	505.7	$	503.3	$	1,539.1	$	1,448.8

Corporate

Revenues from Contracts with Customers

Disaggregation of Revenues from Contracts with Customers (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021			2020
	(in millions)
Commission income	$	99.8	$	78.0	$	287.5	$	231.0
Other fee revenue		17.3		13.6		51.0		38.3
Eliminations		(65.5)		(49.2)		(182.6)		(158.1)
Total revenues from contracts with customers		51.6		42.4		155.9		111.2
Fees and other revenues not within the scope of revenue recognition guidance		(91.8)		(75.8)		(266.3)		(221.1)
Total fees and other revenues		(40.2)		(33.4)		(110.4)		(109.9)
Net investment income		25.9		16.4		88.6		85.9
Total operating revenues	$	(14.3)	$	(17.0)	$	(21.8)	$	(24.0)

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Stock-Based Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2021

Stock-Based Compensation Plans

Stock-Based Compensation Disclosures (Table)

	For the nine months ended September 30,
	2021		2020
	(in millions)
Compensation cost	$	74.1	$	67.0
Related income tax benefit		15.3		13.1
Capitalized as part of an asset		1.1		1.2

Nonqualified Stock Options Fair Value (Table)

	For the nine months ended
	September 30, 2021
Expected volatility		34.2	%
Expected term (in years)		7.0
Risk-free interest rate		1.2	%
Expected dividend yield		3.82	%
Weighted average estimated fair value per common share	$	15.67

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Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Common Share

Earnings Per Common Share (Table)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
	(in millions, except per share data)
Net income	$	364.3	$	235.9	$	1,252.2	$	937.0
Subtract:
Net income attributable to noncontrolling interest		4.4		(0.1)		13.4		13.8
Total	$	359.9	$	236.0	$	1,238.8	$	923.2
Weighted-average shares outstanding:
Basic		268.0		274.8		270.7		274.7
Dilutive effects:
Stock options		1.3		0.4		1.2		0.3
Restricted stock units		2.2		1.5		2.0		1.3
Performance share awards		0.4		0.1		0.5		0.1
Diluted		271.9		276.8		274.4		276.4
Net income per common share:
Basic	$	1.34	$	0.86	$	4.58	$	3.36
Diluted	$	1.32	$	0.85	$	4.51	$	3.34

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Nature of Operations and Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) $ in Millions	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Recent Accounting Pronouncements
Stockholders' Equity	$ 16,129.2	$ 16,291.5	$ 16,617.3	$ 15,721.1	$ 15,311.0	$ 14,685.8
Retained earnings (accumulated deficit)
Recent Accounting Pronouncements
Stockholders' Equity	$ 12,583.9	$ 12,395.0	$ 11,838.0	$ 11,521.4	$ 11,441.4	11,074.3
ASU 2016-13 - CECL | Effects of implementation of accounting change
Recent Accounting Pronouncements
Stockholders' Equity						(8.4)
ASU 2016-13 - CECL | Retained earnings (accumulated deficit) | Effects of implementation of accounting change
Recent Accounting Pronouncements
Stockholders' Equity						$ (8.4)

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Nature of Operations and Significant Accounting Policies - Separate Accounts (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Separate Accounts
Separate account that primarily includes shares of Principal Financial Group, Inc. stock that were allocated and issued to eligible participants of qualified employee benefit plans as part of the 2001 demutualization	$ 94.5	$ 80.4

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Variable Interest Entities - Consolidated VIEs (Details) - USD ($) $ in Millions	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Carrying amounts of consolidated VIE assets and liabilities
Total assets	$ 298,908.4		$ 296,627.7
Total liabilities	282,435.9		279,754.8
Redeemable noncontrolling interest	343.3	$ 330.6	255.6	$ 278.5	$ 272.7	$ 264.9
Aggregate consolidated variable interest entities
Carrying amounts of consolidated VIE assets and liabilities
Total assets	37,715.4		43,233.5
Total liabilities	34,848.1		41,552.4
Redeemable noncontrolling interest	309.7		226.8
Mandatory retirement savings funds
Carrying amounts of consolidated VIE assets and liabilities
Total assets	35,161.0		41,995.2
Total liabilities	34,771.0		41,527.9
Real estate VIE
Carrying amounts of consolidated VIE assets and liabilities
Total assets	691.0		499.0
Total liabilities	42.8		21.3
Sponsored investment funds
Carrying amounts of consolidated VIE assets and liabilities
Total assets	525.9		419.5
Total liabilities	13.3		3.2
Redeemable noncontrolling interest	309.7		226.8
Residential mortgage loans VIE
Carrying amounts of consolidated VIE assets and liabilities
Total assets	1,337.5		$ 319.8
Total liabilities	$ 21.0

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Variable Interest Entities - Unconsolidated VIEs (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	$ 298,908.4	$ 296,627.7
Money Market Funds
Total assets of unconsolidated money market mutual funds	5,100.0	4,400.0
Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Carrying value used if distributions received are in excess of investment		0.0
Corporate debt securities | Available-for-sale | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	294.3	296.9
Maximum exposure to loss	286.0	285.7
Residential mortgage-backed pass-through securities | Available-for-sale | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	2,882.6	2,986.8
Maximum exposure to loss	2,816.2	2,857.6
Residential mortgage-backed pass-through securities | Trading | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	133.3	190.5
Maximum exposure to loss	133.3	190.5
Commercial mortgage-backed securities | Available-for-sale | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	5,283.2	4,942.3
Maximum exposure to loss	5,086.5	4,741.2
Commercial mortgage-backed securities | Trading | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	26.3	27.1
Maximum exposure to loss	26.3	27.1
Collateralized debt obligations | Available-for-sale | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	3,566.3	4,027.5
Maximum exposure to loss	3,569.6	4,045.9
Collateralized debt obligations | Trading | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	10.9	20.6
Maximum exposure to loss	10.9	20.6
Other debt obligations | Available-for-sale | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	7,080.5	7,045.9
Maximum exposure to loss	6,942.3	6,832.6
Other debt obligations | Trading | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	8.5	9.4
Maximum exposure to loss	8.5	9.4
Equity securities | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	123.5	121.7
Maximum exposure to loss	123.5	121.7
Other investments: Other limited partnership and fund interests | Variable Interest Entity
Unconsolidated Variable Interest Entity disclosures
Asset carrying value	1,159.6	999.1
Maximum exposure to loss	1,996.0	1,739.0
Fully secured debt of international real estate funds with recourse to the investment manager, included in maximum loss exposure	$ 133.2	$ 141.2

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Investments - Fixed Maturities and Equity Securities (Details) - USD ($) $ in Millions	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020
Available-for-sale securities
Amortized cost, fixed maturities	$ 70,811.1		$ 70,546.8
Gross unrealized gains, fixed maturities	6,106.5		8,380.0
Gross unrealized losses, fixed maturities	344.2		209.1
Allowance, fixed maturities	16.3	$ 8.7	7.4	$ 12.1	$ 7.2
Fair value, fixed maturities	76,557.1		78,710.3
Accrued interest receivable	570.1		552.5
U.S. government and agencies
Available-for-sale securities
Amortized cost, fixed maturities	1,821.7		1,893.1
Gross unrealized gains, fixed maturities	140.6		228.9
Gross unrealized losses, fixed maturities	40.5		10.5
Fair value, fixed maturities	1,921.8		2,111.5
Non-U.S. governments
Available-for-sale securities
Amortized cost, fixed maturities	906.3		881.6
Gross unrealized gains, fixed maturities	139.3		192.1
Gross unrealized losses, fixed maturities	0.8
Fair value, fixed maturities	1,044.8		1,073.7
States and political subdivisions
Available-for-sale securities
Amortized cost, fixed maturities	8,255.6		8,004.9
Gross unrealized gains, fixed maturities	1,004.3		1,175.5
Gross unrealized losses, fixed maturities	26.9		12.6
Fair value, fixed maturities	9,233.0		9,167.8
Corporate debt securities
Available-for-sale securities
Amortized cost, fixed maturities	41,412.9		41,289.9
Gross unrealized gains, fixed maturities	4,350.9		6,160.9
Gross unrealized losses, fixed maturities	203.0		95.1
Allowance, fixed maturities	15.9	8.5	0.9	6.2	2.8
Fair value, fixed maturities	45,544.9		47,354.8
Residential mortgage-backed pass-through securities
Available-for-sale securities
Amortized cost, fixed maturities	2,816.2		2,857.6
Gross unrealized gains, fixed maturities	82.8		129.4
Gross unrealized losses, fixed maturities	16.4		0.2
Fair value, fixed maturities	2,882.6		2,986.8
Commercial mortgage-backed securities
Available-for-sale securities
Amortized cost, fixed maturities	5,086.5		4,741.2
Gross unrealized gains, fixed maturities	219.2		241.3
Gross unrealized losses, fixed maturities	22.2		35.9
Allowance, fixed maturities	0.3	$ 0.2	4.3	4.0	3.4
Fair value, fixed maturities	5,283.2		4,942.3
Collateralized debt obligations
Available-for-sale securities
Amortized cost, fixed maturities	3,569.6		4,045.9
Gross unrealized gains, fixed maturities	7.3		8.7
Gross unrealized losses, fixed maturities	10.6		24.9
Allowance, fixed maturities			2.2	$ 1.9	$ 1.0
Fair value, fixed maturities	3,566.3		4,027.5
Other debt obligations
Available-for-sale securities
Amortized cost, fixed maturities	6,942.3		6,832.6
Gross unrealized gains, fixed maturities	162.1		243.2
Gross unrealized losses, fixed maturities	23.8		29.9
Allowance, fixed maturities	0.1
Fair value, fixed maturities	$ 7,080.5		$ 7,045.9

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Investments - Amortization by Expected Maturity (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Amortized cost of fixed maturities available-for-sale
Due in one year or less	$ 2,216.3
Due after one year through five years	10,723.2
Due after five years through ten years	14,142.4
Due after ten years	25,314.6
Subtotal	52,396.5
Mortgage-backed and other asset-backed securities	18,414.6
Amortized cost, fixed maturities	70,811.1	$ 70,546.8
Fair value of fixed maturities available-for-sale
Due in one year or less	2,245.6
Due after one year through five years	11,323.9
Due after five years through ten years	15,275.6
Due after ten years	28,899.4
Subtotal	57,744.5
Mortgage-backed and other asset-backed securities	18,812.6
Fair value, fixed maturities	$ 76,557.1	$ 78,710.3

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Investments - Net Realized Capital Gains and Losses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Major components of net realized capital gains (losses) on investments
Fixed maturities, available-for-sale: Gross gains	$ 13.0	$ 22.3	$ 61.2	$ 128.6
Fixed maturities, available-for-sale: Gross losses	(0.9)	(12.8)	(29.0)	(38.6)
Fixed maturities, available-for-sale: Net credit recoveries (losses)	(9.6)	(9.1)	(27.4)	(25.3)
Fixed maturities, available-for-sale: Hedging, net		(0.2)	(1.0)	(9.8)
Fixed maturities, trading	(4.0)	(1.5)	(28.7)	7.2
Equity securities	31.2	52.8	85.5	28.4
Mortgage loans gains (losses)	2.6	(0.3)	14.2	(15.3)
Derivative net realized capital gains (losses)	(173.7)	(42.5)	(153.9)	52.3
Other gains (losses)	(10.6)	56.8	37.4	42.0
Net realized capital gains (losses)	(152.0)	65.5	(41.7)	169.5
Unrealized gains (losses) on fixed maturities, trading	(4.1)	(1.5)	(27.6)	8.7
Unrealized gains (losses) on equity securities	21.5	48.0	54.0	30.0
Unrealized gains (losses) on equity securities reported in net investment income	3.7	2.7	9.6	13.2
Proceeds from sales of investments
Proceeds from sales of investments in fixed maturities, available-for-sale	$ 273.6	$ 628.6	$ 1,870.7	$ 2,176.2

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Investments - Allowance for Credit Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Rollforward of the allowance for credit loss by major security type
Beginning balance	$ 8.7	$ 7.2	$ 7.4
Additions for credit losses not previously recorded	8.0	4.6	15.9	$ 16.3
Reductions for securities sold during the period				(7.0)
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		1.9	2.8	4.4
Write-offs charged against allowance		(1.6)	(9.4)	(1.6)
Foreign currency translation adjustment	(0.4)		(0.4)
Ending balance	16.3	12.1	16.3	12.1
Accrued interest written off to net investment income			0.2
Corporate debt securities
Rollforward of the allowance for credit loss by major security type
Beginning balance	8.5	2.8	0.9
Additions for credit losses not previously recorded	7.8	3.4	15.4	13.2
Reductions for securities sold during the period				(7.0)
Foreign currency translation adjustment	(0.4)		(0.4)
Ending balance	15.9	6.2	15.9	6.2
Accrued interest written off to net investment income			0.2
Commercial mortgage-backed securities
Rollforward of the allowance for credit loss by major security type
Beginning balance	0.2	3.4	4.3
Additions for credit losses not previously recorded	0.1	1.2	0.4	2.9
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		1.0	2.4	2.7
Write-offs charged against allowance		(1.6)	(6.8)	(1.6)
Ending balance	0.3	4.0	0.3	4.0
Collateralized debt obligations
Rollforward of the allowance for credit loss by major security type
Beginning balance		1.0	2.2
Additions for credit losses not previously recorded				0.1
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period		0.9	0.4	1.8
Write-offs charged against allowance			(2.6)
Ending balance		$ 1.9		1.9
Other debt obligations
Rollforward of the allowance for credit loss by major security type
Additions for credit losses not previously recorded	0.1		0.1	0.1
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period				$ (0.1)
Ending balance	$ 0.1		$ 0.1

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Investments - Gross Unrealized Losses for Fixed Maturities (Details) $ in Millions	Sep. 30, 2021 USD ($) item	Dec. 31, 2020 USD ($) item
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Less than twelve months, Fair value	$ 10,647.8	$ 5,909.4
Fixed maturities, Less than twelve months, Gross unrealized losses	208.9	138.8
Fixed maturities, Greater than or equal to twelve months, Fair value	1,826.6	1,399.1
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	119.1	67.4
Fixed maturities, Total, Fair value	12,474.4	7,308.5
Fixed maturities, Total, Gross unrealized losses	328.0	206.2
U.S. government and agencies
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Less than twelve months, Fair value	400.1	351.1
Fixed maturities, Less than twelve months, Gross unrealized losses	14.9	10.4
Fixed maturities, Greater than or equal to twelve months, Fair value	150.8
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	25.7
Fixed maturities, Total, Fair value	550.9	351.1
Fixed maturities, Total, Gross unrealized losses	40.6	10.4
Non-U.S. governments
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Less than twelve months, Fair value	47.7
Fixed maturities, Less than twelve months, Gross unrealized losses	0.8
Fixed maturities, Total, Fair value	47.7
Fixed maturities, Total, Gross unrealized losses	0.8
States and political subdivisions
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Less than twelve months, Fair value	632.3	363.5
Fixed maturities, Less than twelve months, Gross unrealized losses	10.9	12.5
Fixed maturities, Greater than or equal to twelve months, Fair value	245.1
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	15.9
Fixed maturities, Total, Fair value	877.4	363.5
Fixed maturities, Total, Gross unrealized losses	26.8	12.5
Corporate debt securities
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Less than twelve months, Fair value	4,287.4	1,578.7
Fixed maturities, Less than twelve months, Gross unrealized losses	141.3	54.4
Fixed maturities, Greater than or equal to twelve months, Fair value	448.6	267.9
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	48.6	40.6
Fixed maturities, Total, Fair value	4,736.0	1,846.6
Fixed maturities, Total, Gross unrealized losses	189.9	95.0
Residential mortgage-backed pass-through securities
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Less than twelve months, Fair value	1,229.4	92.3
Fixed maturities, Less than twelve months, Gross unrealized losses	15.9	0.2
Fixed maturities, Greater than or equal to twelve months, Fair value	21.8	1.6
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	0.6
Fixed maturities, Total, Fair value	1,251.2	93.9
Fixed maturities, Total, Gross unrealized losses	16.5	0.2
Commercial mortgage-backed securities
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Less than twelve months, Fair value	480.6	970.9
Fixed maturities, Less than twelve months, Gross unrealized losses	4.9	22.1
Fixed maturities, Greater than or equal to twelve months, Fair value	321.6	137.4
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	14.1	12.2
Fixed maturities, Total, Fair value	802.2	1,108.3
Fixed maturities, Total, Gross unrealized losses	19.0	34.3
Collateralized debt obligations
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Less than twelve months, Fair value	1,235.9	1,750.6
Fixed maturities, Less than twelve months, Gross unrealized losses	2.9	11.1
Fixed maturities, Greater than or equal to twelve months, Fair value	461.3	931.1
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	7.7	12.9
Fixed maturities, Total, Fair value	1,697.2	2,681.7
Fixed maturities, Total, Gross unrealized losses	10.6	24.0
Other debt obligations
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Less than twelve months, Fair value	2,334.4	802.3
Fixed maturities, Less than twelve months, Gross unrealized losses	17.3	28.1
Fixed maturities, Greater than or equal to twelve months, Fair value	177.4	61.1
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	6.5	1.7
Fixed maturities, Total, Fair value	2,511.8	863.4
Fixed maturities, Total, Gross unrealized losses	23.8	29.8
Principal Life Insurance Company
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Less than twelve months, Fair value	9,056.8	5,638.3
Fixed maturities, Less than twelve months, Gross unrealized losses	136.9	122.4
Fixed maturities, Greater than or equal to twelve months, Fair value	1,736.2	1,391.3
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	95.0	51.5
Fixed maturities, Total, Fair value	10,793.0	7,029.6
Fixed maturities, Total, Gross unrealized losses	$ 231.9	$ 173.9
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure
Available-for-sale Securities in Unrealized Loss Positions, Qualitative Disclosure, Percent Investment Grade (as a percent)	91.00%	89.00%
Available-for-sale Securities in Unrealized Loss Positions, Qualitative Disclosure, Average Price (percent of carrying value to amortized cost)	98.00%	98.00%
Available-for-sale Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less Than Twelve Months | item	1,400	619
Available-for-sale Securities in Unrealized Loss Positions, Average Price, Less Than Twelve Months (percent of carrying value to amortized cost)	99.00%	98.00%
Available-for-sale Securities in Unrealized Loss Positions, Percent Investment Grade, Less Than Twelve Months (as a percent)	91.00%	89.00%
Available-for-sale Securities in Unrealized Loss Position, Aggregate Losses On Investment Grade Investments, Less Than Twelve Months	$ 124.8	$ 98.4
Available-for-sale Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Twelve Months or Longer | item	280	198
Available-for-sale Securities in Unrealized Loss Positions, Average Price, Twelve Months or Longer (percent of carrying value to amortized cost)	95.00%	96.00%
Principal Life Insurance Company | Corporate debt securities
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	$ 25.5	$ 24.9
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure
Available-for-sale Securities in Unrealized Loss Positions, Average Price, Twelve Months or Longer (percent of carrying value to amortized cost)	94.00%	92.00%
Principal Life Insurance Company | Commercial mortgage-backed securities
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	$ 13.8	$ 11.9
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure
Available-for-sale Securities in Unrealized Loss Positions, Average Price, Twelve Months or Longer (percent of carrying value to amortized cost)	96.00%	92.00%
Principal Life Insurance Company | Collateralized debt obligations
Gross Unrealized Losses for Fixed Maturities
Fixed maturities, Greater than or equal to twelve months, Gross unrealized losses	$ 7.7	$ 12.9
Available-for-sale Securities, Continuous Unrealized Loss Position, Qualitative Disclosure
Available-for-sale Securities in Unrealized Loss Positions, Average Price, Twelve Months or Longer (percent of carrying value to amortized cost)	98.00%	99.00%

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Investments - Net Unrealized Gains and Losses on Available-for-Sale Securities and Derivative Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Net Unrealized Gains and Losses on Available-for-Sale Securities and Derivative Instruments
Net unrealized gains (losses) on fixed maturities, available-for-sale	$ 5,749.7	$ 8,193.0
Net unrealized gains (losses) on derivative instruments	79.6	38.9
Adjustments for assumed changes in amortization patterns	(316.5)	(437.3)
Adjustments for assumed changes in policyholder liabilities	(1,029.2)	(2,603.9)
Net unrealized gains (losses) on other investments and noncontrolling interest adjustments	55.9	78.0
Provision for deferred income tax benefits (taxes)	(956.7)	(1,112.2)
Net unrealized gains (losses) on available-for-sale securities and derivative instruments	$ 3,582.8	$ 4,156.5

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Investments - Mortgage Loan Credit Monitoring (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator
Mortgage loans, Total amortized cost	$ 20,086.4	$ 18,103.9
Reinsurance recoverables	1,122.7	1,098.0
Accrued interest receivable	570.1	552.5
Commercial mortgage loans
Financing Receivable, Credit Quality Indicator
2021	2,109.3
2020	2,114.9	2,019.8
2019	2,741.0	2,769.9
2018	2,581.1	2,817.2
2017	1,806.3	2,049.3
2016		1,509.3
Prior	4,980.0	4,276.1
Mortgage loans, Total amortized cost	16,332.6	15,441.6
Accrued interest receivable	59.3	60.0
Commercial mortgage loans | A- and above
Financing Receivable, Credit Quality Indicator
2021	1,852.4
2020	1,812.6	1,807.6
2019	2,447.0	2,486.8
2018	2,411.6	2,464.7
2017	1,623.0	1,780.8
2016		1,417.8
Prior	4,504.4	3,697.0
Mortgage loans, Total amortized cost	14,651.0	13,654.7
Commercial mortgage loans | BBB+ thru BBB-
Financing Receivable, Credit Quality Indicator
2021	233.1
2020	296.9	149.1
2019	294.0	194.1
2018	160.5	352.5
2017	183.3	262.7
2016		75.8
Prior	384.8	499.7
Mortgage loans, Total amortized cost	1,552.6	1,533.9
Commercial mortgage loans | BB+ thru BB-
Financing Receivable, Credit Quality Indicator
2021	23.8
2020	5.4	23.7
2019		69.0
2016		9.1
Prior	56.1	43.9
Mortgage loans, Total amortized cost	85.3	145.7
Commercial mortgage loans | B+ and below
Financing Receivable, Credit Quality Indicator
2020		39.4
2019		20.0
2018	9.0
2017		5.8
2016		6.6
Prior	34.7	35.5
Mortgage loans, Total amortized cost	43.7	107.3
Direct financing leases
Financing Receivable, Credit Quality Indicator
2021	78.2
2020	117.3	209.7
2019	26.0	29.6
2018	58.6	65.8
2017	33.1	37.6
2016		19.3
Prior	310.2	348.8
Mortgage loans, Total amortized cost	623.4	710.8
Accrued interest receivable	1.1	0.5
Direct financing leases | A- and above
Financing Receivable, Credit Quality Indicator
2020	44.1	43.9
2019	1.4	1.6
2018	40.3	42.6
2017	17.1	19.2
2016		15.3
Prior	255.0	202.9
Mortgage loans, Total amortized cost	357.9	325.5
Direct financing leases | BBB+ thru BBB-
Financing Receivable, Credit Quality Indicator
2021	25.1
2020	59.4	94.9
2019	22.7	5.5
2018	18.3	11.3
2017	16.0	18.4
2016		3.0
Prior	53.1	35.5
Mortgage loans, Total amortized cost	194.6	168.6
Direct financing leases | BB+ thru BB-
Financing Receivable, Credit Quality Indicator
2021	51.6
2020	13.8	13.3
2019	1.9
Prior	2.1	1.9
Mortgage loans, Total amortized cost	69.4	15.2
Direct financing leases | B+ and below
Financing Receivable, Credit Quality Indicator
2021	1.5
2020		57.6
2019		22.5
2018		11.9
2016		1.0
Prior		108.5
Mortgage loans, Total amortized cost	1.5	201.5
Residential mortgage loans
Financing Receivable, Credit Quality Indicator
2021	1,665.9
2020	587.0	699.1
2019	182.8	338.7
2018	102.1	167.8
2017	118.3	166.5
2016		168.0
Prior	474.3	411.4
Mortgage loans, Total amortized cost	3,130.4	1,951.5
Accrued interest receivable	16.5	2.0
Residential mortgage loans | Performing
Financing Receivable, Credit Quality Indicator
2021	1,665.2
2020	585.2	699.1
2019	181.5	336.7
2018	101.5	167.0
2017	117.5	165.1
2016		167.6
Prior	470.3	398.7
Mortgage loans, Total amortized cost	3,121.2	1,934.2
Residential mortgage loans | Non-performing
Financing Receivable, Credit Quality Indicator
2021	0.7
2020	1.8
2019	1.3	2.0
2018	0.6	0.8
2017	0.8	1.4
2016		0.4
Prior	4.0	12.7
Mortgage loans, Total amortized cost	$ 9.2	$ 17.3
Mortgage loans, Days delinquent to be considered non-performing	90 days

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Investments - Financing Receivable, Non-Accrual and Aging (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Financing receivables, non-accrual and aging disclosures
Financing receivables, Non-accrual status	$ 10.8	$ 21.5	$ 11.8
Financing receivables, Non-accrual assets without a valuation allowance	0.7	0.7
Financing receivables, Nonaccrual, Interest Income	0.0	0.0
Financing receivables, Total amortized cost	20,086.4	18,103.9
Recorded investment 90 days or more past due and accruing	9.3	7.8
Reinsurance recoverables	1,122.7	1,098.0
Current
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	20,020.5	17,951.1
Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	65.9	152.8
Reinsurance recoverables	0.0	0.0
30 to 59 Days Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	40.1	108.7
60 to 89 Days Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	7.5	21.2
90 Days or More Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	18.3	22.9
Commercial mortgage loans
Financing receivables, non-accrual and aging disclosures
Financing receivables, Non-accrual status	4.6	10.7	5.0
Financing receivables, Total amortized cost	16,332.6	15,441.6
Recorded investment 90 days or more past due and accruing	2.7	1.3
Commercial mortgage loans | Current
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	16,319.9	15,378.3
Commercial mortgage loans | Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	12.7	63.3
Commercial mortgage loans | 30 to 59 Days Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	5.3	42.1
Commercial mortgage loans | 60 to 89 Days Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	0.1	9.2
Commercial mortgage loans | 90 Days or More Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	7.3	12.0
Direct financing leases
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	623.4	710.8
Recorded investment 90 days or more past due and accruing	3.6
Direct financing leases | Current
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	619.8	707.6
Direct financing leases | Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	3.6	3.2
Direct financing leases | 60 to 89 Days Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost		3.2
Direct financing leases | 90 Days or More Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	3.6
Residential mortgage loans
Financing receivables, non-accrual and aging disclosures
Financing receivables, Non-accrual status	6.2	10.8	$ 6.8
Financing receivables, Non-accrual assets without a valuation allowance	0.7	0.7
Financing receivables, Total amortized cost	3,130.4	1,951.5
Recorded investment 90 days or more past due and accruing	3.0	6.5
Residential mortgage loans | Current
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	3,080.8	1,865.2
Residential mortgage loans | Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	49.6	86.3
Residential mortgage loans | 30 to 59 Days Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	34.8	66.6
Residential mortgage loans | 60 to 89 Days Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	7.4	8.8
Residential mortgage loans | 90 Days or More Past Due
Financing receivables, non-accrual and aging disclosures
Financing receivables, Total amortized cost	$ 7.4	$ 10.9

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Investments - Mortgage Loan Valuation Allowance (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Changes in financing receivable valuation allowance
Beginning balance, Financing receivable valuation allowance	$ 42.7	$ 48.7	$ 52.9	$ 33.1
Provision: Financing receivable valuation allowance	(3.4)	1.4	(14.9)	16.0
Charge-offs: Financing receivable valuation allowance	(0.2)	(0.1)	(0.5)	(0.3)
Recoveries: Financing receivable valuation allowance	1.0	0.6	2.7	1.8
Effect of exchange rates: Financing receivable valuation allowance	(0.1)		(0.2)
Ending balance, Financing receivable valuation allowance	40.0	50.6	40.0	50.6
Financing receivables, Total amortized cost	20,086.4		$ 20,086.4		$ 18,103.9
Commercial mortgage loans
Financing receivable valuation allowance disclosures
Mortgage loans, Days delinquent to be analyzed for valuation allowance			60 days
Changes in financing receivable valuation allowance
Beginning balance, Financing receivable valuation allowance	36.6	40.4	$ 43.2	27.3
Provision: Financing receivable valuation allowance	(2.1)	1.7	(8.6)	14.8
Effect of exchange rates: Financing receivable valuation allowance	(0.1)		(0.2)
Ending balance, Financing receivable valuation allowance	34.4	42.1	34.4	42.1
Financing receivables, Total amortized cost	16,332.6		16,332.6		15,441.6
Direct financing leases
Changes in financing receivable valuation allowance
Beginning balance, Financing receivable valuation allowance	0.3	0.2	0.1
Provision: Financing receivable valuation allowance		(0.1)	0.2	0.1
Ending balance, Financing receivable valuation allowance	0.3	0.1	0.3	0.1
Financing receivables, Total amortized cost	623.4		$ 623.4		710.8
Residential mortgage loans
Financing receivable valuation allowance disclosures
Mortgage loans, Days delinquent to be analyzed for valuation allowance			60 days
Changes in financing receivable valuation allowance
Beginning balance, Financing receivable valuation allowance	3.2	5.6	$ 6.9	3.3
Provision: Financing receivable valuation allowance	(1.4)	(0.3)	(6.5)	1.0
Charge-offs: Financing receivable valuation allowance	(0.2)	(0.1)	(0.5)	(0.3)
Recoveries: Financing receivable valuation allowance	1.0	0.6	2.7	1.8
Ending balance, Financing receivable valuation allowance	2.6	5.8	2.6	5.8
Financing receivables, Total amortized cost	3,130.4		3,130.4		$ 1,951.5
Reinsurance recoverables
Changes in financing receivable valuation allowance
Beginning balance, Financing receivable valuation allowance	2.6	2.5	2.7	2.5
Provision: Financing receivable valuation allowance	0.1	0.1		0.1
Ending balance, Financing receivable valuation allowance	$ 2.7	$ 2.6	$ 2.7	$ 2.6

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Investments - Mortgage Loans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 20,086.4		$ 20,086.4		$ 18,103.9
Commercial mortgage loans
Mortgage loan disclosures
Mortgage loans, purchased	1.5	$ 65.0	106.3	$ 151.3
Mortgage loans, sold		3.3	66.3	4.4
Mortgage loans, Total amortized cost	$ 16,332.6		$ 16,332.6		$ 15,441.6
Percent of mortgage loans (as a percent)	100.00%		100.00%		100.00%
Commercial mortgage loans | Office
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 4,839.0		$ 4,839.0		$ 4,491.7
Percent of mortgage loans (as a percent)	29.70%		29.70%		29.00%
Commercial mortgage loans | Retail
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 1,689.7		$ 1,689.7		$ 1,815.3
Percent of mortgage loans (as a percent)	10.30%		10.30%		11.80%
Commercial mortgage loans | Industrial
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 2,970.6		$ 2,970.6		$ 2,488.7
Percent of mortgage loans (as a percent)	18.20%		18.20%		16.10%
Commercial mortgage loans | Apartments
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 6,059.0		$ 6,059.0		$ 5,958.0
Percent of mortgage loans (as a percent)	37.10%		37.10%		38.60%
Commercial mortgage loans | Hotel
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 86.6		$ 86.6		$ 89.4
Percent of mortgage loans (as a percent)	0.50%		0.50%		0.60%
Commercial mortgage loans | Mixed use/other
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 687.7		$ 687.7		$ 598.5
Percent of mortgage loans (as a percent)	4.20%		4.20%		3.90%
Commercial mortgage loans | New England
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 588.4		$ 588.4		$ 593.9
Percent of mortgage loans (as a percent)	3.60%		3.60%		3.80%
Commercial mortgage loans | Middle Atlantic
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 4,508.0		$ 4,508.0		$ 4,438.2
Percent of mortgage loans (as a percent)	27.50%		27.50%		28.80%
Commercial mortgage loans | East North Central
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 596.4		$ 596.4		$ 572.6
Percent of mortgage loans (as a percent)	3.70%		3.70%		3.70%
Commercial mortgage loans | West North Central
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 290.4		$ 290.4		$ 267.5
Percent of mortgage loans (as a percent)	1.80%		1.80%		1.70%
Commercial mortgage loans | South Atlantic
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 2,455.1		$ 2,455.1		$ 2,368.9
Percent of mortgage loans (as a percent)	15.00%		15.00%		15.30%
Commercial mortgage loans | East South Central
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 374.9		$ 374.9		$ 316.6
Percent of mortgage loans (as a percent)	2.30%		2.30%		2.10%
Commercial mortgage loans | West South Central
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 1,249.6		$ 1,249.6		$ 1,315.9
Percent of mortgage loans (as a percent)	7.70%		7.70%		8.50%
Commercial mortgage loans | Mountain
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 1,006.9		$ 1,006.9		$ 936.2
Percent of mortgage loans (as a percent)	6.20%		6.20%		6.10%
Commercial mortgage loans | Pacific
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 4,825.0		$ 4,825.0		$ 4,183.0
Percent of mortgage loans (as a percent)	29.50%		29.50%		27.10%
Commercial mortgage loans | International
Mortgage loan disclosures
Mortgage loans, Total amortized cost	$ 437.9		$ 437.9		$ 448.8
Percent of mortgage loans (as a percent)	2.70%		2.70%		2.90%
Residential mortgage loans
Mortgage loan disclosures
Mortgage loans, purchased	$ 1,142.0	242.0	$ 1,955.0	736.5
Mortgage loans, sold	29.5	$ 24.6	73.1	$ 98.0
Mortgage loans, Total amortized cost	$ 3,130.4		$ 3,130.4		$ 1,951.5

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Investments - Securities Posted as Collateral (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Securities Posted as Collateral
Commercial mortgage loans and residential first lien mortgages posted as collateral associated with obligation under funding agreements with the Federal Home Loan Bank of Des Moines	$ 5,010.7	$ 4,604.9
Fixed maturities available-for-sale and trading securities posted as collateral for a reinsurance arrangement, derivative credit support annex (collateral) agreements, Futures Commission Merchant agreements, a lending arrangement and an obligation under funding agreements with Federal Home Loan Bank of Des Moines	2,561.9	2,563.9
Securities posted as collateral eligible to be sold or repledged	$ 227.7	$ 133.4

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Investments - Balance Sheet Offsetting, Assets (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Financial Asset Offsetting
Gross amount of recognized assets subject to netting agreements	$ 352.3	$ 527.2
Amount of liabilities that offset the gross amount of assets subject to netting agreements not offset in statement of financial position	(112.1)	(132.5)
Collateral received, financial assets	(232.3)	(357.2)
Net amount of assets subject to netting agreements	7.9	37.5
Derivative assets
Financial Asset Offsetting
Gross amount of recognized assets subject to netting agreements	328.1	463.5
Amount of liabilities that offset the gross amount of assets subject to netting agreements not offset in statement of financial position	(112.1)	(132.5)
Collateral received, financial assets	(208.1)	(293.5)
Net amount of assets subject to netting agreements	7.9	37.5
Reverse repurchase agreements
Financial Asset Offsetting
Gross amount of recognized assets subject to netting agreements	24.2	63.7
Collateral received, financial assets	$ (24.2)	$ (63.7)

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Investments - Balance Sheet Offsetting, Liabilities (Details) - Derivative liabilities - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Financial Liability Offsetting
Gross amount of recognized liabilities subject to netting agreements	$ 242.2	$ 186.2
Amount of assets that offset the gross amount of liabilities subject to netting agreements not offset in statement of financial position	(112.1)	(132.5)
Collateral pledged, financial liabilities	(73.9)	(45.7)
Net amount of liabilities subject to netting agreements	56.2	8.0
Gross amount of liabilities not subject to netting agreements	$ 356.1	$ 467.8

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Derivative Financial Instruments - Notional Amounts and Credit Exposure (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Derivative Financial Instruments, exposure
Cash and securities posted under collateral arrangements associated with derivative credit support agreements and Futures Commission Merchant agreements	$ 232.3	$ 148.3
Aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a liability position	165.9	180.2
Collateral and initial margin posted supporting derivatives with credit-risk-related contingent features that were in a liability position	232.3	148.3
Additional collateral required to be posted if derivative credit-risk-related contingent features were triggered	57.8
Cash collateral received associated with derivative credit support annex agreements and Futures Commission Merchant agreements	176.9	225.2
Notional amount	65,182.1	62,292.5
Gross credit exposure	341.1	473.5
Less: collateral received	217.9	294.7
Net credit exposure	123.2	178.8
Interest rate swaps
Derivative Financial Instruments, exposure
Cash exchanged under contract	0.0
Principal payments made under contract	0.0
Notional amount	44,028.9	44,472.1
Gross credit exposure	215.1	291.0
Interest rate options
Derivative Financial Instruments, exposure
Notional amount	2,373.9	2,083.9
Gross credit exposure	31.9	51.0
Interest rate forwards
Derivative Financial Instruments, exposure
Notional amount	2,181.6	1,000.0
Gross credit exposure		6.2
Interest rate futures
Derivative Financial Instruments, exposure
Notional amount	1,585.0	188.5
Swaptions
Derivative Financial Instruments, exposure
Notional amount		62.0
Currency swaps
Derivative Financial Instruments, exposure
Notional amount	1,152.6	1,045.5
Gross credit exposure	46.0	43.3
Currency forwards
Derivative Financial Instruments, exposure
Notional amount	1,006.7	1,115.8
Gross credit exposure	8.9	45.4
Equity options
Derivative Financial Instruments, exposure
Notional amount	2,284.4	1,857.8
Gross credit exposure	36.2	33.2
Equity futures
Derivative Financial Instruments, exposure
Notional amount	117.4	218.1
Credit default swaps
Derivative Financial Instruments, exposure
Notional amount	310.0	295.0
Gross credit exposure	3.0	3.4
Embedded derivative financial instruments
Derivative Financial Instruments, exposure
Notional amount	$ 10,141.6	$ 9,953.8

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Derivative Financial Instruments - Fair Value of Derivatives (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Derivatives, fair value disclosures
Derivative instruments, assets	$ 328.1	$ 463.5
Derivative instruments, liabilities	598.3	654.0
Fair value of embedded derivative liabilities reported with contractholder funds	355.3	467.8
Derivatives designated as hedging instruments
Derivatives, fair value disclosures
Derivative instruments, assets	46.8	21.1
Derivative instruments, liabilities	36.4	72.5
Derivatives not designated as hedging instruments
Derivatives, fair value disclosures
Derivative instruments, assets	281.3	442.4
Derivative instruments, liabilities	561.9	581.5
Interest rate contracts | Derivatives designated as hedging instruments
Derivatives, fair value disclosures
Derivative instruments, assets	0.6
Derivative instruments, liabilities	21.2	27.8
Interest rate contracts | Derivatives not designated as hedging instruments
Derivatives, fair value disclosures
Derivative instruments, assets	234.2	339.3
Derivative instruments, liabilities	62.6	33.0
Foreign exchange contracts | Derivatives designated as hedging instruments
Derivatives, fair value disclosures
Derivative instruments, assets	46.2	21.1
Derivative instruments, liabilities	15.2	44.7
Foreign exchange contracts | Derivatives not designated as hedging instruments
Derivatives, fair value disclosures
Derivative instruments, assets	7.9	66.5
Derivative instruments, liabilities	78.8	29.2
Equity contracts | Derivatives not designated as hedging instruments
Derivatives, fair value disclosures
Derivative instruments, assets	36.3	33.2
Derivative instruments, liabilities	62.6	49.0
Credit contracts | Derivatives not designated as hedging instruments
Derivatives, fair value disclosures
Derivative instruments, assets	2.9	3.4
Derivative instruments, liabilities	2.6	2.5
Other contracts | Derivatives not designated as hedging instruments
Derivatives, fair value disclosures
Derivative instruments, liabilities	$ 355.3	$ 467.8

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Derivative Financial Instruments - Credit Derivatives Sold (Details) - Single name credit default swaps - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Credit derivatives sold disclosures
Notional amount	$ 165.0	$ 170.0
Fair value	2.9	3.3
Maximum future payments	$ 165.0	$ 170.0
Weighted average expected life	3 years 1 month 6 days	3 years 9 months 18 days
Corporate debt securities | A
Credit derivatives sold disclosures
Notional amount	$ 20.0	$ 20.0
Fair value	0.4	0.5
Maximum future payments	$ 20.0	$ 20.0
Weighted average expected life	3 years 8 months 12 days	4 years 6 months
Corporate debt securities | BBB
Credit derivatives sold disclosures
Notional amount	$ 110.0	$ 115.0
Fair value	2.0	2.1
Maximum future payments	$ 110.0	$ 115.0
Weighted average expected life	3 years 3 months 18 days	3 years 10 months 24 days
Sovereign | A
Credit derivatives sold disclosures
Notional amount	$ 20.0	$ 20.0
Fair value	0.5	0.6
Maximum future payments	$ 20.0	$ 20.0
Weighted average expected life	3 years 8 months 12 days	4 years 6 months
Sovereign | BBB
Credit derivatives sold disclosures
Notional amount	$ 15.0	$ 15.0
Fair value		0.1
Maximum future payments	$ 15.0	$ 15.0
Weighted average expected life	2 months 12 days	1 year

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Derivative Financial Instruments - Fair Value Hedges (Details) - Fixed maturities, available-for-sale - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Fair Value Hedges
Amortized cost of hedged item - Active hedging relationships	$ 829.2	$ 476.1
Amortized cost of hedged item - Discontinued hedging relationships	80.2	135.1
Amortized cost of hedged item - Active or discontinued hedging relationships	909.4	611.2
Cumulative amount of fair value hedging basis adjustment - Active hedging relationships	1.0	21.4
Cumulative amount of fair value hedging basis adjustment - Discontinued hedging relationships	3.1	5.2
Cumulative amount of fair value hedging basis adjustment - Active or discontinued hedging relationships	4.1	26.6
Amortized cost basis of closed portfolio used in last-of-layer hedging relationship	347.7	0.0
Cumulative basis adjustments associated with last-of-layer hedging relationship	(1.9)	0.0
Amount of hedged item in last-of-layer hedging relationship	$ 210.0	$ 0.0

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Derivative Financial Instruments - Cash Flow Hedges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Cash Flow Hedges
Amount of gain (loss) recognized in AOCI on derivatives in cash flow hedging relationships	$ 31.1	$ (29.3)	$ 52.9	$ 14.2
Net gains (losses) expected to be reclassified from accumulated OCI into net income in the next 12 months			22.1
Interest rate contracts | Fixed maturities, available-for-sale
Cash Flow Hedges
Amount of gain (loss) recognized in AOCI on derivatives in cash flow hedging relationships				(3.0)
Interest rate contracts | Investment contracts
Cash Flow Hedges
Amount of gain (loss) recognized in AOCI on derivatives in cash flow hedging relationships	0.6		0.6
Foreign exchange contracts | Fixed maturities, available-for-sale
Cash Flow Hedges
Amount of gain (loss) recognized in AOCI on derivatives in cash flow hedging relationships	$ 30.5	$ (29.3)	$ 52.3	$ 17.2

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Derivative Financial Instruments - Effect of Hedges on Consolidated Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Gains (losses) recognized for hedging relationships
Net investment income (loss)	$ 1,093.4	$ 917.9	$ 3,167.0	$ 2,846.1
Net realized capital gains (losses)	(152.0)	65.5	(41.7)	169.5
Benefits, claims and settlement expenses	1,770.9	1,839.8	4,958.4	6,299.8
Fair Value Hedges | Interest rate contracts | Net investment income
Gains (losses) recognized for hedging relationships
Gain (loss) recognized on hedged item	(4.0)	(2.1)	(20.5)	9.1
Gain (loss) recognized on derivatives	5.4	1.8	22.2	(9.7)
Amortization of hedged item basis adjustments	(0.5)	(0.6)	(1.5)	(1.9)
Amounts related to periodic settlements on derivatives	(2.4)	(1.8)	(6.8)	(4.1)
Total gain (loss) recognized for hedging relationships	(1.5)	(2.7)	(6.6)	(6.6)
Fair Value Hedges | Interest rate contracts | Benefits, claims and settlement expenses
Gains (losses) recognized for hedging relationships
Amounts related to periodic settlements on derivatives	(0.1)		(0.1)
Total gain (loss) recognized for hedging relationships	(0.1)		(0.1)
Cash Flow Hedges | Net investment income
Gains (losses) recognized for hedging relationships
Total gain (loss) recognized for hedging relationships	6.4	6.4	18.9	20.0
Cash Flow Hedges | Net realized capital gains (losses)
Gains (losses) recognized for hedging relationships
Total gain (loss) recognized for hedging relationships	0.1	0.3	1.2	9.1
Cash Flow Hedges | Benefits, claims and settlement expenses
Gains (losses) recognized for hedging relationships
Total gain (loss) recognized for hedging relationships		(0.1)	(0.1)	(0.1)
Cash Flow Hedges | Interest rate contracts | Gain (loss) reclassified from AOCI on derivatives
Gains (losses) recognized for hedging relationships
Net investment income (loss)	3.8	4.4	11.9	13.8
Net realized capital gains (losses)		0.1		2.7
Benefits, claims and settlement expenses		0.1	0.1	0.1
Cash Flow Hedges | Interest rate contracts | Net realized capital gains (losses)
Gains (losses) recognized for hedging relationships
Gain (loss) reclassified from AOCI into net income as a result that a forecasted transaction is no longer probable of occurring	0.1		0.5
Cash Flow Hedges | Foreign exchange contracts | Gain (loss) reclassified from AOCI on derivatives
Gains (losses) recognized for hedging relationships
Net realized capital gains (losses)		0.2	0.7	6.4
Cash Flow Hedges | Foreign exchange contracts | Net investment income
Gains (losses) recognized for hedging relationships
Amounts related to periodic settlements on derivatives	2.6	2.0	7.0	6.2
Net investment hedging relationships
Gains (losses) recognized for hedging relationships
Amount of gain (loss) recognized in accumulated OCI on derivatives	1.3	0.8	2.3	10.1
Net investment hedging relationships | Gain (loss) reclassified from AOCI on derivatives
Gains (losses) recognized for hedging relationships
Net realized capital gains (losses)		(7.1)		(7.1)
Net investment hedging relationships | Foreign exchange contracts
Gains (losses) recognized for hedging relationships
Amount of gain (loss) recognized in accumulated OCI on derivatives	$ 1.3	0.8	$ 2.3	10.1
Net investment hedging relationships | Foreign exchange contracts | Gain (loss) reclassified from AOCI on derivatives
Gains (losses) recognized for hedging relationships
Net realized capital gains (losses)		$ (7.1)		$ (7.1)

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Derivative Financial Instruments - Derivatives Not Designated as Hedging Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Effect of derivatives not designated as hedging instruments on the consolidated statements of operations
Amount of gain (loss) recognized in net income on derivatives	$ (177.8)	$ (50.5)	$ (169.6)	$ 25.0
Interest rate contracts
Effect of derivatives not designated as hedging instruments on the consolidated statements of operations
Amount of gain (loss) recognized in net income on derivatives	(29.7)	(73.5)	(131.4)	407.0
Foreign exchange contracts
Effect of derivatives not designated as hedging instruments on the consolidated statements of operations
Amount of gain (loss) recognized in net income on derivatives	(91.9)	27.2	(117.9)	(5.4)
Equity contracts
Effect of derivatives not designated as hedging instruments on the consolidated statements of operations
Amount of gain (loss) recognized in net income on derivatives	18.9	(27.6)	(26.8)	(38.7)
Credit contracts
Effect of derivatives not designated as hedging instruments on the consolidated statements of operations
Amount of gain (loss) recognized in net income on derivatives	0.1	0.3		1.3
Other contracts
Effect of derivatives not designated as hedging instruments on the consolidated statements of operations
Amount of gain (loss) recognized in net income on derivatives	$ (75.2)	$ 23.1	$ 106.5	$ (339.2)

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Insurance Liabilities - Liability for Unpaid Claims (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Change in unpaid claims
Balance at beginning of period, unpaid claims	$ 2,534.9	$ 2,365.5
Balance at beginning of period, reinsurance recoverables for unpaid claims	436.9	403.8
Net balance at beginning of period, unpaid claims	2,098.0	1,961.7
Incurred:
Incurred: Current year	736.0	985.5
Incurred: Prior years	441.7	37.9
Total incurred	1,177.7	1,023.4
Payments:
Payments: Current year	313.6	595.7
Payments: Prior years	773.2	335.1
Total payments	1,086.8	930.8
Net balance at end of period, unpaid claims	2,188.9	2,054.3
Balance at end of period, reinsurance recoverables for unpaid claims	437.9	425.4
Balance at end of period, unpaid claims	2,626.8	2,479.7
Amount not included in the rollforward above:
Claim adjustment expense liabilities	$ 59.5	$ 58.0

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Income Taxes - Effective Income Tax Rate (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Reconciliation between the U.S. corporate income tax rate and the effective income tax rate from continuing operations
U.S. corporate income tax rate (as a percent)	21.00%	21.00%	21.00%	21.00%
Dividends received deduction (as a percent)	(4.00%)	(7.00%)	(4.00%)	(5.00%)
Tax credits (as a percent)	(3.00%)	(5.00%)	(2.00%)	(3.00%)
Interest exclusion from taxable income (as a percent)	(1.00%)	(1.00%)	(1.00%)	(1.00%)
Foreign tax rate differential (as a percent)	(1.00%)	1.00%
Impact of equity method presentation (as a percent)		(2.00%)	(1.00%)	(1.00%)
State income taxes (as a percent)	1.00%	2.00%	1.00%	1.00%
Low income housing tax credit amortization	1.00%	1.00%	1.00%	1.00%
Other income tax rate impacts (as a percent)	1.00%	4.00%		2.00%
Effective income tax rate (as a percent)	15.00%	14.00%	15.00%	15.00%

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Employee and Agent Benefits - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Pension benefits
Components of Net Periodic Benefit Cost (Income)
Service cost	$ 20.8	$ 18.2	$ 62.4	$ 54.5
Interest cost	$ 25.8	$ 29.3	$ 77.4	$ 88.0
Interest cost, location on consolidated statements of operations	Operating expenses	Operating expenses	Operating expenses	Operating expenses
Expected return on plan assets	$ (45.7)	$ (39.1)	$ (137.0)	$ (117.5)
Expected return on plan assets, location on consolidated statements of operations	Operating expenses	Operating expenses	Operating expenses	Operating expenses
Amortization of prior service (benefit) cost	$ (4.2)	$ (4.3)	$ (12.6)	$ (12.7)
Amortization of prior service (benefit) cost, location on consolidated statements of operations	Operating expenses	Operating expenses	Operating expenses	Operating expenses
Recognized net actuarial (gain) loss	$ 17.5	$ 18.9	$ 52.6	$ 56.6
Recognized net actuarial (gain) loss, location on consolidated statements of operations	Operating expenses	Operating expenses	Operating expenses	Operating expenses
Net periodic benefit cost (income)	$ 14.2	$ 23.0	$ 42.8	$ 68.9
Contributions made by employer to fund qualified and nonqualified pension plans	20.7		92.1
Pension benefits | Maximum
Components of Net Periodic Benefit Cost (Income)
Amount of possible contributions to be made during the current fiscal year to the qualified and nonqualified pension plans combined	125.0		125.0
Other postretirement benefits
Components of Net Periodic Benefit Cost (Income)
Interest cost	$ 0.5	$ 0.7	$ 1.6	$ 2.1
Interest cost, location on consolidated statements of operations	Operating expenses	Operating expenses	Operating expenses	Operating expenses
Expected return on plan assets	$ (1.1)	$ (9.0)	$ (3.5)	$ (27.0)
Expected return on plan assets, location on consolidated statements of operations	Operating expenses	Operating expenses	Operating expenses	Operating expenses
Amortization of prior service (benefit) cost	$ (0.3)	$ (0.3)	$ (0.8)	$ (0.8)
Amortization of prior service (benefit) cost, location on consolidated statements of operations	Operating expenses	Operating expenses	Operating expenses	Operating expenses
Recognized net actuarial (gain) loss	$ (0.2)		$ (0.4)
Recognized net actuarial (gain) loss, location on consolidated statements of operations	Operating expenses	Operating expenses	Operating expenses	Operating expenses
Net periodic benefit cost (income)	$ (1.1)	$ (8.6)	$ (3.1)	$ (25.7)
Contributions made by employer to fund qualified and nonqualified pension plans			$ 1.1		$ 1.5

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Employee and Agent Benefits - Other Postretirement Plan Changes and Plan Gains/Losses (Details) - Other postretirement benefits $ in Millions	Jan. 01, 2021 USD ($)
Defined Benefit Plan Disclosures
Amount of assets in excess of expected liability for retirees, re-designated for non-retiree benefits	$ 656.5
Percentage of assets in excess of expected liabilities to fund other benefits covered under the plans	125.00%

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Employee and Agent Benefits - Benefit Obligation and Funded Status (Details) - Other postretirement benefits $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Change in plan assets
Fair value of plan assets at beginning of year	$ 780.6	$ 732.8
Actual return on plan assets	(2.9)	53.1
Employer contribution	1.1	1.5
Participant contributions	4.6	6.0
Benefits paid	(10.2)	(12.8)
Assets re-designated for non-retiree benefits	(656.5)
Fair value of plan assets at end of year	116.7	780.6
Amount recognized in statement of financial position
Amount recognized in other assets	11.7	675.5
Amount recognized in other liabilities	(1.8)	(2.9)
Total assets (liabilities) recognized in statement of financial position	$ 9.9	$ 672.6

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Contingencies, Guarantees and Indemnifications (Details) $ in Millions	Sep. 30, 2021 USD ($)
Guarantees to third parties primarily related to former subsidiaries and joint ventures
Guarantees and Indemnifications
Maximum exposure under guarantees	$ 104.0
Guarantees related to P-Caps contingent funding agreements
Guarantees and Indemnifications
Maximum exposure under guarantees	$ 750.0

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Stockholders' Equity - Common Stock Dividends and Reconciliation of Outstanding Common Shares (Details) - Common stock - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended			3 Months Ended		9 Months Ended
	Jun. 30, 2021	Feb. 29, 2020	Nov. 30, 2018	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Common Stock Dividends
Dividends declared per common share (in dollars per share)				$ 0.63	$ 0.56	$ 1.80	$ 1.68
Reconciliation of Outstanding Common Shares
Outstanding shares at beginning of period				269.0	274.0	273.3	276.6
Shares issued				0.3	0.6	2.4	2.4
Treasury stock acquired				(3.2)	(0.1)	(9.6)	(4.5)
Outstanding shares at end of period	269.0			266.1	274.5	266.1	274.5
Common stock share repurchase disclosures
Share repurchase program, maximum authorized amount (in dollars)	$ 1,200.0	$ 900.0	$ 500.0

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Stockholders' Equity - Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Comprehensive Income (Loss)
Other comprehensive income (loss), pre-tax	$ (189.7)	$ 357.7	$ (909.0)	$ 939.2
Other comprehensive income (loss), tax	2.8	(51.3)	142.4	(231.0)
Other comprehensive income (loss)	(186.9)	306.4	(766.6)	708.2
Net unrealized gains (losses) on available-for-sale securities including NCI
Other Comprehensive Income (Loss)
Other comprehensive income (loss) before reclassifications, pre-tax	(546.4)	960.1	(2,461.6)	2,378.1
Adjustments for assumed changes in amortization patterns, pre-tax	32.2	(109.0)	121.3	(112.9)
Adjustments for assumed changes in policyholder liabilities, pre-tax	477.2	(565.7)	1,573.7	(1,136.0)
Other comprehensive income (loss), pre-tax	(39.6)	288.3	(770.4)	1,074.7
Other comprehensive income (loss) before reclassifications, tax	127.4	(200.0)	554.9	(500.1)
Reclassification from accumulated other comprehensive income, tax	0.2	(1.0)	0.2	12.6
Adjustments for assumed changes in amortization patterns, tax	(6.8)	22.9	(25.5)	23.7
Adjustments for assumed changes in policyholder liabilities, tax	(104.8)	116.5	(365.3)	241.9
Other comprehensive income (loss), tax	16.0	(61.6)	164.3	(221.9)
Other comprehensive income (loss) before reclassifications, after-tax	(419.0)	760.1	(1,906.7)	1,878.0
Reclassification from accumulated other comprehensive income, after-tax	(2.4)	1.9	(3.6)	(41.9)
Adjustments for assumed changes in amortization patterns, after-tax	25.4	(86.1)	95.8	(89.2)
Adjustments for assumed changes in policyholder liabilities, after-tax	372.4	(449.2)	1,208.4	(894.1)
Other comprehensive income (loss)	(23.6)	226.7	(606.1)	852.8
Net unrealized gains (losses) on available-for-sale securities including NCI | Net realized capital gains (losses)
Other Comprehensive Income (Loss)
Reclassification from accumulated other comprehensive income, pre-tax	(2.6)	2.9	(3.8)	(54.5)
Net unrealized gains (losses) on derivative instruments including NCI
Other Comprehensive Income (Loss)
Other comprehensive income (loss) before reclassifications, pre-tax	31.2	(29.2)	53.7	26.2
Reclassification from accumulated other comprehensive income, pre-tax	(3.9)	(4.6)	(13.0)	(22.8)
Adjustments for assumed changes in amortization patterns, pre-tax	(0.5)	0.2	(0.5)	0.9
Adjustments for assumed changes in policyholder liabilities, pre-tax	(0.4)	1.7	1.0	4.6
Other comprehensive income (loss), pre-tax	26.4	(31.9)	41.2	8.9
Other comprehensive income (loss) before reclassifications, tax	(6.6)	6.2	(11.3)	(4.9)
Reclassification from accumulated other comprehensive income, tax	0.8	0.9	2.7	4.2
Adjustments for assumed changes in amortization patterns, tax	0.1		0.1	(0.2)
Adjustments for assumed changes in policyholder liabilities, tax		(0.3)	(0.3)	(0.9)
Other comprehensive income (loss), tax	(5.7)	6.8	(8.8)	(1.8)
Other comprehensive income (loss) before reclassifications, after-tax	24.6	(23.0)	42.4	21.3
Reclassification from accumulated other comprehensive income, after-tax	(3.1)	(3.7)	(10.3)	(18.6)
Adjustments for assumed changes in amortization patterns, after-tax	(0.4)	0.2	(0.4)	0.7
Adjustments for assumed changes in policyholder liabilities, after-tax	(0.4)	1.4	0.7	3.7
Other comprehensive income (loss)	20.7	(25.1)	32.4	7.1
Foreign currency translation adjustment relating to noncontrolling interest | Net income attributable to noncontrolling interest
Other Comprehensive Income (Loss)
Reclassification from accumulated other comprehensive income, pre-tax		8.7		8.7
Foreign currency translation adjustment including NCI
Other Comprehensive Income (Loss)
Other comprehensive income (loss) before reclassifications, pre-tax		75.5		(231.1)
Other comprehensive income (loss), pre-tax	(189.3)	87.0	(209.5)	(188.1)
Other comprehensive income (loss) before reclassifications, tax		5.5		2.7
Reclassification from accumulated other comprehensive income, tax		1.8		1.8
Other comprehensive income (loss), tax	(4.0)	7.3	(4.6)	4.5
Other comprehensive income (loss) before reclassifications, after-tax		81.0		(228.4)
Reclassification from accumulated other comprehensive income, after-tax		13.3		44.8
Other comprehensive income (loss)	(193.3)	94.3	(214.1)	(183.6)
Foreign currency translation adjustment including NCI | Net realized capital gains (losses)
Other Comprehensive Income (Loss)
Reclassification from accumulated other comprehensive income, pre-tax		11.5		43.0
Unrecognized postretirement benefit obligation including NCI
Other Comprehensive Income (Loss)
Other comprehensive income (loss) before reclassifications, pre-tax			(9.1)	0.6
Other comprehensive income (loss), pre-tax	12.8	14.3	29.7	43.7
Other comprehensive income (loss) before reclassifications, tax			1.9	(0.2)
Reclassification from accumulated other comprehensive income, tax	(3.5)	(3.8)	(10.4)	(11.6)
Other comprehensive income (loss), tax	(3.5)	(3.8)	(8.5)	(11.8)
Other comprehensive income (loss) before reclassifications, after-tax			(7.2)	0.4
Reclassification from accumulated other comprehensive income, after-tax	9.3	10.5	28.4	31.5
Other comprehensive income (loss)	9.3	10.5	21.2	31.9
Unrecognized postretirement benefit obligation including NCI | Operating expense
Other Comprehensive Income (Loss)
Reclassification from accumulated other comprehensive income, pre-tax	$ 12.8	$ 14.3	$ 38.8	$ 43.1

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Stockholders' Equity - AOCI and Noncontrolling Interest (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Change in accumulated other comprehensive income (loss) rollforward
Balances				$ 16,558.9
Purchase of subsidiary shares from noncontrolling interest	[1]	$ (1.1)		(18.1)	$ (0.9)
Balances		16,070.7		16,070.7
Change in redeemable noncontrolling interest rollforward
Redeemable noncontrolling interest, balance at beginning of period		330.6	$ 272.7	255.6	264.9
Net income (loss) attributable to redeemable noncontrolling interest		2.7	(1.5)	9.5	(9.5)
Contributions from redeemable noncontrolling interest		60.2	49.7	148.2	124.3
Distributions to redeemable noncontrolling interest		(11.7)	(6.0)	(34.8)	(53.8)
Purchase of subsidiary shares from redeemable noncontrolling interest		(0.7)		(6.1)
Change in redemption value of redeemable noncontrolling interest			1.7	8.6	(0.2)
Other comprehensive income (loss) attributable to redeemable noncontrolling interest		(0.4)	9.1	(0.3)
Redeemable noncontrolling interest, balance at end of period		343.3	278.5	343.3	278.5
Redeemable noncontrolling interest of deconsolidated entities		(37.4)	(47.3)	(37.4)	(47.3)
Stock-based compensation attributable to redeemable noncontrolling interest			0.1		0.1
Accumulated other comprehensive income (loss)
Change in accumulated other comprehensive income (loss) rollforward
Balances		1,803.8	1,450.7	2,383.1	1,037.9
Other comprehensive income (loss) during the period, net of adjustments		(188.4)	283.1	(778.4)	702.1
Amounts reclassified from accumulated other comprehensive income (loss)		3.8	13.3	14.5	7.1
Other comprehensive income (loss) attributable to Principal Financial Group, Inc.		(184.6)	296.4	(763.9)	709.2
Balances		1,619.2	1,747.1	1,619.2	1,747.1
Net unrealized gains (losses) on available-for-sale securities
Change in accumulated other comprehensive income (loss) rollforward
Balances		3,555.8	3,388.2	4,138.3	2,806.0
Other comprehensive income (loss) during the period, net of adjustments		(21.2)	224.7	(602.5)	894.8
Amounts reclassified from accumulated other comprehensive income (loss)		(2.4)	1.9	(3.6)	(41.9)
Other comprehensive income (loss) attributable to Principal Financial Group, Inc.		(23.6)	226.6	(606.1)	852.9
Balances		3,532.2	3,614.8	3,532.2	3,614.8
Net unrealized losses on available-for-sale debt securities with allowance for credit losses		16.2	4.0	16.2	4.0
Net unrealized gains (losses) on available-for-sale securities | ASU 2016-13 - CECL | Effects of implementation of accounting change
Change in accumulated other comprehensive income (loss) rollforward
Balances			(44.1)		(44.1)
Noncredit component of impairment losses on fixed maturities available-for-sale
Change in accumulated other comprehensive income (loss) rollforward
Balances					(44.1)
Amounts reclassified from accumulated other comprehensive income (loss)		0.0
Other comprehensive income (loss) attributable to Principal Financial Group, Inc.				0.0
Balances		0.0		0.0
Noncredit component of impairment losses on fixed maturities available-for-sale | ASU 2016-13 - CECL | Effects of implementation of accounting change
Change in accumulated other comprehensive income (loss) rollforward
Balances			44.1		44.1
Net unrealized gains (losses) on derivative instruments
Change in accumulated other comprehensive income (loss) rollforward
Balances		29.9	85.6	18.2	53.4
Other comprehensive income (loss) during the period, net of adjustments		23.8	(21.4)	42.7	25.7
Amounts reclassified from accumulated other comprehensive income (loss)		(3.1)	(3.7)	(10.3)	(18.6)
Other comprehensive income (loss) attributable to Principal Financial Group, Inc.		20.7	(25.1)	32.4	7.1
Balances		50.6	60.5	50.6	60.5
Foreign currency translation adjustment
Change in accumulated other comprehensive income (loss) rollforward
Balances		(1,333.3)	(1,608.9)	(1,312.9)	(1,341.8)
Other comprehensive income (loss) during the period, net of adjustments		(191.0)	79.8	(211.4)	(218.8)
Amounts reclassified from accumulated other comprehensive income (loss)		0.0	4.6		36.1
Other comprehensive income (loss) attributable to Principal Financial Group, Inc.		(191.0)	84.4	(211.4)	(182.7)
Balances		(1,524.3)	(1,524.5)	(1,524.3)	(1,524.5)
Unrecognized postretirement benefit obligations
Change in accumulated other comprehensive income (loss) rollforward
Balances		(448.6)	(414.2)	(460.5)	(435.6)
Other comprehensive income (loss) during the period, net of adjustments				(7.2)	0.4
Amounts reclassified from accumulated other comprehensive income (loss)		9.3	10.5	28.4	31.5
Other comprehensive income (loss) attributable to Principal Financial Group, Inc.		9.3	10.5	21.2	31.9
Balances		$ (439.3)	$ (403.7)	$ (439.3)	$ (403.7)

[1] Excludes amounts attributable to redeemable noncontrolling interest. See Note 9, Stockholders’ Equity, for further details.

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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	$ 76,557.1	$ 78,710.3
Fixed maturities, trading	413.5	532.1
Equity securities	2,428.2	2,013.4
Derivative instruments, assets	328.1	463.5
Separate account assets	177,850.5	175,951.4
Investment and universal life contracts	$ (355.3)	(467.8)
Fixed maturities valued using internal pricing models
Fixed maturities classified as Level 3 assets, percent valued using internal pricing models (as a percent)	1.00%
Amount measured at net asset value
Assets (liabilities) measured at fair value on a recurring basis
Unfunded commitments of investments measured using NAV	$ 10.8	15.1
U.S. government and agencies
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	1,921.8	2,111.5
Non-U.S. governments
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	1,044.8	1,073.7
States and political subdivisions
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	9,233.0	9,167.8
Corporate debt securities
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	45,544.9	47,354.8
Residential mortgage-backed pass-through securities
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	2,882.6	2,986.8
Commercial mortgage-backed securities
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	5,283.2	4,942.3
Collateralized debt obligations
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	3,566.3	4,027.5
Other debt obligations
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	7,080.5	7,045.9
Recurring Fair Value Measurements
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	76,557.1	78,710.3
Fixed maturities, trading	413.5	532.1
Equity securities	2,428.2	2,013.4
Derivative instruments, assets	328.1	463.5
Other investments	784.4	746.3
Cash equivalents	1,786.9	1,466.4
Sub-total excluding separate account assets	82,298.2	83,932.0
Separate account assets	177,850.5	175,951.4
Total assets	260,148.7	259,883.4
Investment and universal life contracts	(355.3)	(467.8)
Derivative liabilities	(242.9)	(186.1)
Other liabilities	(1.8)	(0.4)
Total liabilities	(600.0)	(654.3)
Net assets (liabilities)	259,548.7	259,229.1
Recurring Fair Value Measurements | Amount measured at net asset value
Assets (liabilities) measured at fair value on a recurring basis
Other investments	92.6	75.7
Sub-total excluding separate account assets	92.6	75.7
Separate account assets	8,165.2	155.8
Total assets	8,257.8	231.5
Net assets (liabilities)	8,257.8	231.5
Recurring Fair Value Measurements | Fair value hierarchy Level 1
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	1,648.6	1,769.4
Fixed maturities, trading	0.5	0.5
Equity securities	1,089.9	659.7
Other investments	312.0	252.8
Cash equivalents	65.9	38.3
Sub-total excluding separate account assets	3,116.9	2,720.7
Separate account assets	110,111.4	102,550.5
Total assets	113,228.3	105,271.2
Net assets (liabilities)	113,228.3	105,271.2
Recurring Fair Value Measurements | Fair value hierarchy Level 2
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	74,015.9	76,580.5
Fixed maturities, trading	413.0	531.6
Equity securities	1,338.3	1,353.7
Derivative instruments, assets	327.4	462.9
Other investments	377.1	385.9
Cash equivalents	1,721.0	1,428.1
Sub-total excluding separate account assets	78,192.7	80,742.7
Separate account assets	58,306.6	64,351.9
Total assets	136,499.3	145,094.6
Derivative liabilities	(242.2)	(180.4)
Other liabilities	(1.8)	(0.4)
Total liabilities	(244.0)	(180.8)
Net assets (liabilities)	136,255.3	144,913.8
Recurring Fair Value Measurements | Fair value hierarchy Level 3
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	892.6	360.4
Derivative instruments, assets	0.7	0.6
Other investments	2.7	31.9
Sub-total excluding separate account assets	896.0	392.9
Separate account assets	1,267.3	8,893.2
Total assets	2,163.3	9,286.1
Investment and universal life contracts	(355.3)	(467.8)
Derivative liabilities	(0.7)	(5.7)
Total liabilities	(356.0)	(473.5)
Net assets (liabilities)	1,807.3	8,812.6
Recurring Fair Value Measurements | U.S. government and agencies
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	1,921.8	2,111.5
Recurring Fair Value Measurements | U.S. government and agencies | Fair value hierarchy Level 1
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	1,606.0	1,768.3
Recurring Fair Value Measurements | U.S. government and agencies | Fair value hierarchy Level 2
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	315.8	343.2
Recurring Fair Value Measurements | Non-U.S. governments
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	1,044.8	1,073.7
Recurring Fair Value Measurements | Non-U.S. governments | Fair value hierarchy Level 1
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	1.0	1.1
Recurring Fair Value Measurements | Non-U.S. governments | Fair value hierarchy Level 2
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	1,043.8	1,072.6
Recurring Fair Value Measurements | States and political subdivisions
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	9,233.0	9,167.8
Recurring Fair Value Measurements | States and political subdivisions | Fair value hierarchy Level 2
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	9,233.0	9,167.8
Recurring Fair Value Measurements | Corporate debt securities
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	45,544.9	47,354.8
Recurring Fair Value Measurements | Corporate debt securities | Fair value hierarchy Level 1
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	41.6
Recurring Fair Value Measurements | Corporate debt securities | Fair value hierarchy Level 2
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	44,697.5	47,064.0
Recurring Fair Value Measurements | Corporate debt securities | Fair value hierarchy Level 3
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	805.8	290.8
Recurring Fair Value Measurements | Residential mortgage-backed pass-through securities
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	2,882.6	2,986.8
Recurring Fair Value Measurements | Residential mortgage-backed pass-through securities | Fair value hierarchy Level 2
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	2,882.6	2,986.8
Recurring Fair Value Measurements | Commercial mortgage-backed securities
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	5,283.2	4,942.3
Recurring Fair Value Measurements | Commercial mortgage-backed securities | Fair value hierarchy Level 2
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	5,269.0	4,929.1
Recurring Fair Value Measurements | Commercial mortgage-backed securities | Fair value hierarchy Level 3
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	14.2	13.2
Recurring Fair Value Measurements | Collateralized debt obligations
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	3,566.3	4,027.5
Recurring Fair Value Measurements | Collateralized debt obligations | Fair value hierarchy Level 2
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	3,515.9	4,000.3
Recurring Fair Value Measurements | Collateralized debt obligations | Fair value hierarchy Level 3
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	50.4	27.2
Recurring Fair Value Measurements | Other debt obligations
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	7,080.5	7,045.9
Recurring Fair Value Measurements | Other debt obligations | Fair value hierarchy Level 2
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	7,058.3	7,016.7
Recurring Fair Value Measurements | Other debt obligations | Fair value hierarchy Level 3
Assets (liabilities) measured at fair value on a recurring basis
Fixed maturities, available-for-sale	$ 22.2	$ 29.2

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Fair Value Measurements - Changes in Level 3 Fair Value Measurements (Details) - Recurring Fair Value Measurements - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Changes in Level 3 fair value measurements rollforward, assets and liabilities
Beginning balance, net derivative assets (liabilities)	$ (8.9)	$ (14.2)	$ (5.1)	$ 13.0
Total realized/unrealized gains (losses) included in net income, net derivative assets (liabilities)	(1.8)	4.7	(6.2)	6.5
Net purchases, sales, issuances and settlements, net derivative assets (liabilities)	10.7	(0.9)	11.3	(3.4)
Transfers out of Level 3, net derivative assets (liabilities)				(26.5)
Ending balance, net derivative assets (liabilities)		(10.4)		(10.4)
Changes in unrealized gains (losses) included in net income relating to positions still held, net derivative assets (liabilities)	(0.7)	4.6	(0.6)	5.2
Gross purchases, sales, issuances and settlements
Sales, net derivative assets (liabilities)	10.7	(0.9)	11.3	(3.4)
Net purchases, sales, issuances and settlements, net derivative assets (liabilities)	10.7	(0.9)	11.3	(3.4)
Investment and universal life contracts
Changes in Level 3 fair value measurements rollforward, assets and liabilities
Beginning balance, liabilities	(281.6)	(576.0)	(467.8)	(214.2)
Total realized/unrealized gains (losses) included in net income, liabilities	(80.4)	23.2	89.3	(335.5)
Total realized/unrealized gains (losses) included in other comprehensive income, liabilities	0.1		0.2	(0.3)
Net purchases, sales, issuances and settlements, liabilities	6.6	0.4	23.0	(2.4)
Ending balance, liabilities	(355.3)	(552.4)	(355.3)	(552.4)
Changes in unrealized gains (losses) included in net income relating to positions still held, liabilities	(76.4)	29.4	86.1	(344.8)
Changes in unrealized gains (losses) included in OCI relating to positions still held, liabilities	0.1		0.2	(0.3)
Gross purchases, sales, issuances and settlements
Issuances, liabilities	(3.5)	(6.3)	(11.7)	(18.5)
Settlements, liabilities	10.1	6.7	34.7	16.1
Net purchases, sales, issuances and settlements, liabilities	6.6	0.4	23.0	(2.4)
Fixed maturities | Available-for-sale
Changes in Level 3 fair value measurements rollforward, assets and liabilities
Beginning balance, assets	817.6	362.1	360.4	384.9
Total realized/unrealized gains (losses) included in net income, assets	(7.8)	(2.3)	(15.7)	(4.2)
Total realized/unrealized gains (losses) included in other comprehensive income, assets	10.2	4.5	7.6	(29.0)
Net purchases, sales, issuances and settlements, assets	245.3	8.5	691.2	158.6
Transfers into Level 3, assets	25.1	0.3	272.3	388.4
Transfers out of Level 3, assets	(197.8)	(31.3)	(423.2)	(556.9)
Ending balance, assets	892.6	341.8	892.6	341.8
Changes in unrealized gains (losses) included in net income relating to positions still held, assets	(7.8)	(1.3)	(14.6)	(3.2)
Changes in unrealized gains (losses) included in OCI relating to positions still held, assets	10.4	3.9	5.9	(1.6)
Gross purchases, sales, issuances and settlements
Purchases, assets	298.8	58.6	859.1	249.6
Sales, assets	(3.4)	(4.4)	(14.3)	(5.4)
Settlements, assets	(50.1)	(45.7)	(153.6)	(85.6)
Net purchases, sales, issuances and settlements, assets	245.3	8.5	691.2	158.6
Fixed maturities | Trading
Changes in Level 3 fair value measurements rollforward, assets and liabilities
Beginning balance, assets				0.3
Transfers out of Level 3, assets				(0.3)
Corporate debt securities | Available-for-sale
Changes in Level 3 fair value measurements rollforward, assets and liabilities
Beginning balance, assets	549.0	275.0	290.8	81.7
Total realized/unrealized gains (losses) included in net income, assets	(7.8)	(1.0)	(12.7)	(1.0)
Total realized/unrealized gains (losses) included in other comprehensive income, assets	10.5	4.3	5.8	(6.3)
Net purchases, sales, issuances and settlements, assets	229.0	27.5	354.3	38.3
Transfers into Level 3, assets	25.1		167.6	342.0
Transfers out of Level 3, assets		(24.5)		(173.4)
Ending balance, assets	805.8	281.3	805.8	281.3
Changes in unrealized gains (losses) included in net income relating to positions still held, assets	(7.8)		(12.6)
Changes in unrealized gains (losses) included in OCI relating to positions still held, assets	10.6	3.6	4.4	(2.1)
Gross purchases, sales, issuances and settlements
Purchases, assets	268.5	42.6	469.3	77.5
Sales, assets	(3.4)	(4.4)	(14.3)	(5.4)
Settlements, assets	(36.1)	(10.7)	(100.7)	(33.8)
Net purchases, sales, issuances and settlements, assets	229.0	27.5	354.3	38.3
Commercial mortgage-backed securities | Available-for-sale
Changes in Level 3 fair value measurements rollforward, assets and liabilities
Beginning balance, assets	11.6	13.1	13.2	12.9
Total realized/unrealized gains (losses) included in net income, assets		(0.4)	(1.0)	(1.3)
Total realized/unrealized gains (losses) included in other comprehensive income, assets	(0.1)		(0.6)	1.1
Net purchases, sales, issuances and settlements, assets	2.7		2.6
Transfers into Level 3, assets		0.3		0.3
Ending balance, assets	14.2	13.0	14.2	13.0
Changes in unrealized gains (losses) included in net income relating to positions still held, assets		(0.4)		(1.3)
Changes in unrealized gains (losses) included in OCI relating to positions still held, assets	(0.2)		(0.6)	1.1
Gross purchases, sales, issuances and settlements
Purchases, assets	2.7		2.7
Settlements, assets			(0.1)
Net purchases, sales, issuances and settlements, assets	2.7		2.6
Collateralized debt obligations | Available-for-sale
Changes in Level 3 fair value measurements rollforward, assets and liabilities
Beginning balance, assets	195.6	2.8	27.2	199.0
Total realized/unrealized gains (losses) included in net income, assets		(0.9)	(2.0)	(1.9)
Total realized/unrealized gains (losses) included in other comprehensive income, assets		0.4	1.8	(22.2)
Net purchases, sales, issuances and settlements, assets	27.6	16.1	337.5	158.1
Transfers into Level 3, assets			84.1
Transfers out of Level 3, assets	(172.8)		(398.2)	(314.6)
Ending balance, assets	50.4	18.4	50.4	18.4
Changes in unrealized gains (losses) included in net income relating to positions still held, assets		(0.9)	(2.0)	(1.9)
Changes in unrealized gains (losses) included in OCI relating to positions still held, assets		0.3	2.1	(0.6)
Gross purchases, sales, issuances and settlements
Purchases, assets	27.6	16.0	362.0	157.8
Settlements, assets		0.1	(24.5)	0.3
Net purchases, sales, issuances and settlements, assets	27.6	16.1	337.5	158.1
Other debt obligations | Available-for-sale
Changes in Level 3 fair value measurements rollforward, assets and liabilities
Beginning balance, assets	61.4	71.2	29.2	91.3
Total realized/unrealized gains (losses) included in other comprehensive income, assets	(0.2)	(0.2)	0.6	(1.6)
Net purchases, sales, issuances and settlements, assets	(14.0)	(35.1)	(3.2)	(37.8)
Transfers into Level 3, assets			20.6	46.1
Transfers out of Level 3, assets	(25.0)	(6.8)	(25.0)	(68.9)
Ending balance, assets	22.2	29.1	22.2	29.1
Gross purchases, sales, issuances and settlements
Purchases, assets			25.1	14.3
Settlements, assets	(14.0)	(35.1)	(28.3)	(52.1)
Net purchases, sales, issuances and settlements, assets	(14.0)	(35.1)	(3.2)	(37.8)
Other investments
Changes in Level 3 fair value measurements rollforward, assets and liabilities
Beginning balance, assets	44.5	38.7	31.9	39.0
Total realized/unrealized gains (losses) included in net income, assets	(0.1)	2.7	12.5	5.0
Total realized/unrealized gains (losses) included in other comprehensive income, assets	(0.6)		(0.6)	(2.9)
Net purchases, sales, issuances and settlements, assets	(41.1)	(11.0)	(41.1)	(10.7)
Ending balance, assets	2.7	30.4	2.7	30.4
Changes in unrealized gains (losses) included in net income relating to positions still held, assets	(0.1)	1.7	12.6	4.0
Changes in unrealized gains (losses) included in OCI relating to positions still held, assets	(0.6)		(0.6)	(2.9)
Gross purchases, sales, issuances and settlements
Purchases, assets				0.3
Sales, assets	(41.1)	(11.0)	(41.1)	(11.0)
Net purchases, sales, issuances and settlements, assets	(41.1)	(11.0)	(41.1)	(10.7)
Separate account assets
Changes in Level 3 fair value measurements rollforward, assets and liabilities
Beginning balance, assets	1,217.4	8,821.3	8,893.2	8,968.0
Total realized/unrealized gains (losses) included in net income, assets	71.0	72.3	215.6	225.4
Net purchases, sales, issuances and settlements, assets	(21.1)	(38.4)	(7,841.5)	(338.2)
Ending balance, assets	1,267.3	8,855.2	1,267.3	8,855.2
Changes in unrealized gains (losses) included in net income relating to positions still held, assets	71.5	72.3	215.6	211.2
Gross purchases, sales, issuances and settlements
Purchases, assets		4.2	36.7	72.2
Sales, assets	(2.0)	(0.2)	(7,795.2)	(185.8)
Issuances, assets	(34.4)	(42.2)	(175.4)	(269.0)
Settlements, assets	15.3	(0.2)	92.4	44.4
Net purchases, sales, issuances and settlements, assets	$ (21.1)	$ (38.4)	$ (7,841.5)	$ (338.2)

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Fair Value Measurements - Transfers (Details) - Recurring Fair Value Measurements - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Fair Value Hierarchy Levels Transfers
Transfers out of Level 3 into Level 2, net derivative assets (liabilities)				$ 26.5
Available-for-sale | Fixed maturities
Fair Value Hierarchy Levels Transfers
Transfers out of Level 2 into Level 3	$ 25.1	$ 0.3	$ 272.3	388.4
Transfers out of Level 3 into Level 2	197.8	31.3	423.2	556.9
Available-for-sale | Corporate debt securities
Fair Value Hierarchy Levels Transfers
Transfers out of Level 2 into Level 3	25.1		167.6	342.0
Transfers out of Level 3 into Level 2		24.5		173.4
Available-for-sale | Commercial mortgage-backed securities
Fair Value Hierarchy Levels Transfers
Transfers out of Level 2 into Level 3		0.3		0.3
Available-for-sale | Collateralized debt obligations
Fair Value Hierarchy Levels Transfers
Transfers out of Level 2 into Level 3			84.1
Transfers out of Level 3 into Level 2	172.8		398.2	314.6
Available-for-sale | Other debt obligations
Fair Value Hierarchy Levels Transfers
Transfers out of Level 2 into Level 3			20.6	46.1
Transfers out of Level 3 into Level 2	$ 25.0	$ 6.8	$ 25.0	68.9
Trading | Fixed maturities
Fair Value Hierarchy Levels Transfers
Transfers out of Level 3 into Level 2				$ 0.3

XML

Fair Value Measurements - Quantitative Information for Level 3 Measurements (Details) - Recurring Fair Value Measurements $ in Millions	Sep. 30, 2021 USD ($) item	Dec. 31, 2020 USD ($) item
Unobservable inputs
Assets measured at fair value | $	$ 260,148.7	$ 259,883.4
Liabilities measured at fair value | $	(600.0)	(654.3)
Fair value hierarchy Level 3
Unobservable inputs
Assets measured at fair value | $	2,163.3	9,286.1
Liabilities measured at fair value | $	(356.0)	(473.5)
Fair value hierarchy Level 3 | Investment and universal life contracts
Unobservable inputs
Liabilities measured at fair value | $	$ (355.3)	$ (467.8)
Embedded derivative, Valuation technique	Discounted cash flow	Discounted cash flow
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Long duration interest rate | Minimum
Unobservable inputs
Embedded derivative, Input	0.019	0.012
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Long duration interest rate | Maximum
Unobservable inputs
Embedded derivative, Input	0.021	0.014
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Long duration interest rate | Weighted average input
Unobservable inputs
Embedded derivative, Input	0.020	0.013
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Long-term equity market volatility | Minimum
Unobservable inputs
Embedded derivative, Input	0.179	0.176
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Long-term equity market volatility | Maximum
Unobservable inputs
Embedded derivative, Input	0.320	0.269
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Long-term equity market volatility | Weighted average input
Unobservable inputs
Embedded derivative, Input	0.221	0.196
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Non-performance risk | Minimum
Unobservable inputs
Embedded derivative, Input	0.002	0.001
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Non-performance risk | Maximum
Unobservable inputs
Embedded derivative, Input	0.010	0.014
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Non-performance risk | Weighted average input
Unobservable inputs
Embedded derivative, Input	0.008	0.009
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Lapse rate | Minimum
Unobservable inputs
Embedded derivative, Input	0.000	0.000
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Lapse rate | Maximum
Unobservable inputs
Embedded derivative, Input	0.170	0.160
Fair value hierarchy Level 3 | Investment and universal life contracts | Discounted cash flow | Lapse rate | Weighted average input
Unobservable inputs
Embedded derivative, Input	0.051	0.058
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale
Unobservable inputs
Assets measured at fair value | $	$ 746.9	$ 286.1
Fixed maturities, available-for-sale, Valuation technique	Discounted cash flow	Discounted cash flow
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Discount rate | Minimum
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.007	0.009
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Discount rate | Maximum
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.186	0.117
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Discount rate | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.070	0.073
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Illiquidity premium | Minimum
Unobservable inputs
Fixed maturities, available-for-sale, Input	0	0
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Illiquidity premium | Maximum
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.0070	0.0060
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Illiquidity premium | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.0007	0.0019
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Comparability adjustment | Minimum
Unobservable inputs
Fixed maturities, available-for-sale, Input		0
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Comparability adjustment | Maximum
Unobservable inputs
Fixed maturities, available-for-sale, Input		0.0769
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Comparability adjustment | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input		0.0359
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Probability of default
Unobservable inputs
Fixed maturities, available-for-sale, Input	1.000	1.000
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Probability of default | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input	1.000	1.000
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Potential loss severity
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.164	0.546
Fair value hierarchy Level 3 | Corporate debt securities | Available-for-sale | Discounted cash flow | Potential loss severity | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.164	0.546
Fair value hierarchy Level 3 | Commercial mortgage-backed securities | Available-for-sale
Unobservable inputs
Assets measured at fair value | $	$ 2.7	$ 1.1
Fixed maturities, available-for-sale, Valuation technique	Discounted cash flow	Discounted cash flow
Fair value hierarchy Level 3 | Commercial mortgage-backed securities | Available-for-sale | Discounted cash flow | Discount rate
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.039
Fair value hierarchy Level 3 | Commercial mortgage-backed securities | Available-for-sale | Discounted cash flow | Discount rate | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.039
Fair value hierarchy Level 3 | Commercial mortgage-backed securities | Available-for-sale | Discounted cash flow | Probability of default
Unobservable inputs
Fixed maturities, available-for-sale, Input		1.000
Fair value hierarchy Level 3 | Commercial mortgage-backed securities | Available-for-sale | Discounted cash flow | Probability of default | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input		1.000
Fair value hierarchy Level 3 | Commercial mortgage-backed securities | Available-for-sale | Discounted cash flow | Potential loss severity
Unobservable inputs
Fixed maturities, available-for-sale, Input		0.784
Fair value hierarchy Level 3 | Commercial mortgage-backed securities | Available-for-sale | Discounted cash flow | Potential loss severity | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input		0.784
Fair value hierarchy Level 3 | Collateralized debt obligations | Available-for-sale
Unobservable inputs
Assets measured at fair value | $	$ 1.0	$ 0.7
Fixed maturities, available-for-sale, Valuation technique	Discounted cash flow	Discounted cash flow
Fair value hierarchy Level 3 | Collateralized debt obligations | Available-for-sale | Discounted cash flow | Discount rate
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.030
Fair value hierarchy Level 3 | Collateralized debt obligations | Available-for-sale | Discounted cash flow | Discount rate | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.030
Fair value hierarchy Level 3 | Collateralized debt obligations | Available-for-sale | Discounted cash flow | Illiquidity premium
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.0291
Fair value hierarchy Level 3 | Collateralized debt obligations | Available-for-sale | Discounted cash flow | Illiquidity premium | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.0291
Fair value hierarchy Level 3 | Collateralized debt obligations | Available-for-sale | Discounted cash flow | Probability of default
Unobservable inputs
Fixed maturities, available-for-sale, Input		1.000
Fair value hierarchy Level 3 | Collateralized debt obligations | Available-for-sale | Discounted cash flow | Probability of default | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input		1.000
Fair value hierarchy Level 3 | Collateralized debt obligations | Available-for-sale | Discounted cash flow | Potential loss severity
Unobservable inputs
Fixed maturities, available-for-sale, Input		0.405
Fair value hierarchy Level 3 | Collateralized debt obligations | Available-for-sale | Discounted cash flow | Potential loss severity | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input		0.405
Fair value hierarchy Level 3 | Other debt obligations | Available-for-sale
Unobservable inputs
Assets measured at fair value | $	$ 22.2	$ 0.8
Fixed maturities, available-for-sale, Valuation technique	Discounted cash flow	Discounted cash flow
Fair value hierarchy Level 3 | Other debt obligations | Available-for-sale | Discounted cash flow | Discount rate
Unobservable inputs
Fixed maturities, available-for-sale, Input		0.100
Fair value hierarchy Level 3 | Other debt obligations | Available-for-sale | Discounted cash flow | Discount rate | Minimum
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.025
Fair value hierarchy Level 3 | Other debt obligations | Available-for-sale | Discounted cash flow | Discount rate | Maximum
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.100
Fair value hierarchy Level 3 | Other debt obligations | Available-for-sale | Discounted cash flow | Discount rate | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.028	0.100
Fair value hierarchy Level 3 | Other debt obligations | Available-for-sale | Discounted cash flow | Illiquidity premium
Unobservable inputs
Fixed maturities, available-for-sale, Input		0.0500
Fair value hierarchy Level 3 | Other debt obligations | Available-for-sale | Discounted cash flow | Illiquidity premium | Minimum
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.0225
Fair value hierarchy Level 3 | Other debt obligations | Available-for-sale | Discounted cash flow | Illiquidity premium | Maximum
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.0500
Fair value hierarchy Level 3 | Other debt obligations | Available-for-sale | Discounted cash flow | Illiquidity premium | Weighted average input
Unobservable inputs
Fixed maturities, available-for-sale, Input	0.0235	0.0500
Fair value hierarchy Level 3 | Other investments
Unobservable inputs
Assets measured at fair value | $	$ 1.3	$ 30.4
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, other investments | Discount rate | Minimum
Unobservable inputs
Other investments, Input		0.250
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, other investments | Discount rate | Maximum
Unobservable inputs
Other investments, Input		0.300
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, other investments | Discount rate | Weighted average input
Unobservable inputs
Other investments, Input		0.275
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, other investments | Terminal earnings before interest, taxes, depreciation and amortization multiple | Minimum
Unobservable inputs
Other investments, Input		3.8
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, other investments | Terminal earnings before interest, taxes, depreciation and amortization multiple | Maximum
Unobservable inputs
Other investments, Input		4.7
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, other investments | Terminal earnings before interest, taxes, depreciation and amortization multiple | Weighted average input
Unobservable inputs
Other investments, Input		4.2
Fair value hierarchy Level 3 | Other investments | Market comparables | Revenue multiples | Minimum
Unobservable inputs
Other investments, Input	6.8	6.0
Fair value hierarchy Level 3 | Other investments | Market comparables | Revenue multiples | Maximum
Unobservable inputs
Other investments, Input	9.1	8.0
Fair value hierarchy Level 3 | Other investments | Market comparables | Revenue multiples | Weighted average input
Unobservable inputs
Other investments, Input	8.0	7.0
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, real estate | Discount rate
Unobservable inputs
Other investments, Input		0.065
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, real estate | Discount rate | Weighted average input
Unobservable inputs
Other investments, Input		0.065
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, real estate | Terminal capitalization rate
Unobservable inputs
Other investments, Input		0.053
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, real estate | Terminal capitalization rate | Weighted average input
Unobservable inputs
Other investments, Input		0.053
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, real estate | Average market rent growth rate
Unobservable inputs
Other investments, Input		0.026
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, real estate | Average market rent growth rate | Weighted average input
Unobservable inputs
Other investments, Input		0.026
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, real estate debt | Credit spread rate
Unobservable inputs
Other investments, Input		0.033
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, real estate debt | Credit spread rate | Weighted average input
Unobservable inputs
Other investments, Input		0.033
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, real estate debt | Loan to value
Unobservable inputs
Other investments, Input		0.526
Fair value hierarchy Level 3 | Other investments | Discounted cash flow, real estate debt | Loan to value | Weighted average input
Unobservable inputs
Other investments, Input		0.526
Fair value hierarchy Level 3 | Separate account assets
Unobservable inputs
Assets measured at fair value | $	$ 1,268.0	$ 8,893.2
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, mortgage loans | Discount rate
Unobservable inputs
Separate account assets, Input	0.012	0.012
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, mortgage loans | Discount rate | Weighted average input
Unobservable inputs
Separate account assets, Input	0.012	0.012
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, mortgage loans | Illiquidity premium
Unobservable inputs
Separate account assets, Input	0.0060	0.0060
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, mortgage loans | Illiquidity premium | Weighted average input
Unobservable inputs
Separate account assets, Input	0.0060	0.0060
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, mortgage loans | Credit spread rate
Unobservable inputs
Separate account assets, Input	0.0109	0.0110
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, mortgage loans | Credit spread rate | Weighted average input
Unobservable inputs
Separate account assets, Input	0.0109	0.0110
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate | Discount rate | Minimum
Unobservable inputs
Separate account assets, Input	0.055	0.056
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate | Discount rate | Maximum
Unobservable inputs
Separate account assets, Input	0.119	0.119
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate | Discount rate | Weighted average input
Unobservable inputs
Separate account assets, Input	0.075	0.069
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate | Terminal capitalization rate | Minimum
Unobservable inputs
Separate account assets, Input	0.045	0.045
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate | Terminal capitalization rate | Maximum
Unobservable inputs
Separate account assets, Input	0.093	0.093
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate | Terminal capitalization rate | Weighted average input
Unobservable inputs
Separate account assets, Input	0.059	0.057
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate | Average market rent growth rate | Minimum
Unobservable inputs
Separate account assets, Input	0.015	0.015
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate | Average market rent growth rate | Maximum
Unobservable inputs
Separate account assets, Input	0.036	0.048
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate | Average market rent growth rate | Weighted average input
Unobservable inputs
Separate account assets, Input	0.028	0.030
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate debt | Loan to value | Minimum
Unobservable inputs
Separate account assets, Input	0.290	0.063
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate debt | Loan to value | Maximum
Unobservable inputs
Separate account assets, Input	0.602	0.742
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate debt | Loan to value | Weighted average input
Unobservable inputs
Separate account assets, Input	0.436	0.475
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate debt | Market interest rate | Minimum
Unobservable inputs
Separate account assets, Input	0.023	0.020
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate debt | Market interest rate | Maximum
Unobservable inputs
Separate account assets, Input	0.045	0.050
Fair value hierarchy Level 3 | Separate account assets | Discounted cash flow, real estate debt | Market interest rate | Weighted average input
Unobservable inputs
Separate account assets, Input	0.028	0.034

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Fair Value Measurements - Fair Value Option on Consolidated VIEs and Equity Method Investments (Details) - Real Estate Ventures - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Fair Value Option, Quantitative Disclosures
Fair value of assets for which fair value option was elected					$ 28.5
Pre-tax gain (loss) due to change in fair value of assets and liabilities for which the fair value option was elected	$ (0.1)	$ 1.7	$ 12.6	$ 4.0

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Fair Value Measurements - Financial Instruments Not Reported at Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Assets (liabilities)
Mortgage loans	$ 19,426.0	$ 17,343.0
Policy loans	762.1	784.0
Short-term debt	(74.3)	(84.7)
Long-term debt	(4,279.7)	(4,279.2)
Carrying amount
Assets (liabilities)
Mortgage loans	19,426.0	17,343.0
Policy loans	762.1	784.0
Other investments	344.7	347.2
Cash and cash equivalents not required to be reported at fair value	1,358.5	1,383.4
Investment contracts	(36,067.9)	(35,449.9)
Short-term debt	(74.3)	(84.7)
Long-term debt	(4,279.7)	(4,279.2)
Separate account liabilities	(161,410.9)	(160,316.4)
Bank deposits	(385.3)	(423.5)
Cash collateral payable	(176.9)	(224.6)
Assets (liabilities) measured at fair value
Assets (liabilities)
Mortgage loans	20,504.4	18,762.6
Policy loans	961.7	1,037.7
Other investments	334.5	338.5
Cash and cash equivalents not required to be reported at fair value	1,358.5	1,383.4
Investment contracts	(36,717.2)	(36,738.7)
Short-term debt	(74.3)	(84.7)
Long-term debt	(4,827.7)	(4,949.9)
Separate account liabilities	(160,362.4)	(159,129.2)
Bank deposits	(387.8)	(429.7)
Cash collateral payable	(176.9)	(224.6)
Assets (liabilities) measured at fair value | Fair value hierarchy Level 1
Assets (liabilities)
Cash and cash equivalents not required to be reported at fair value	1,334.4	1,369.7
Cash collateral payable	(176.9)	(224.6)
Assets (liabilities) measured at fair value | Fair value hierarchy Level 2
Assets (liabilities)
Other investments	244.2	247.1
Cash and cash equivalents not required to be reported at fair value	24.1	13.7
Investment contracts	(7,500.2)	(5,276.9)
Short-term debt	(74.3)	(84.7)
Long-term debt	(4,788.3)	(4,908.7)
Bank deposits	(387.8)	(429.7)
Assets (liabilities) measured at fair value | Fair value hierarchy Level 3
Assets (liabilities)
Mortgage loans	20,504.4	18,762.6
Policy loans	961.7	1,037.7
Other investments	90.3	91.4
Investment contracts	(29,217.0)	(31,461.8)
Long-term debt	(39.4)	(41.2)
Separate account liabilities	$ (160,362.4)	$ (159,129.2)

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Segment Information - Reconciliation of Segment Assets to Consolidated (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Segment Information: Assets
Total assets	$ 298,908.4	$ 296,627.7
Retirement and Income Solutions
Segment Information: Assets
Total assets	216,039.3	207,288.4
Principal Global Investors
Segment Information: Assets
Total assets	2,358.4	2,294.3
Principal International
Segment Information: Assets
Total assets	43,524.9	51,707.6
U.S. Insurance Solutions
Segment Information: Assets
Total assets	32,702.7	31,438.9
Corporate
Segment Information: Assets
Total assets	$ 4,283.1	$ 3,898.5

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Segment Information - Reconciliation of Segment Operating Revenues and Earnings to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating Revenue And Profit (Loss) From Segments To Consolidated
Net realized capital gains (losses), net of related revenue adjustments	$ (188.2)	$ 31.6	$ (157.0)	$ 105.4
Total revenues	3,423.7	3,310.7	10,171.6	10,976.6
Pre-tax net realized capital gains (losses), as adjusted	(133.5)	9.9	(141.7)	(41.1)
Income (loss) before income taxes	428.1	275.1	1,474.6	1,101.9
Retirement and Income Solutions
Operating Revenue And Profit (Loss) From Segments To Consolidated
Inter-segment revenues	106.0	87.5	307.7	249.1
Principal Global Investors
Operating Revenue And Profit (Loss) From Segments To Consolidated
Inter-segment revenues	79.7	65.6	223.9	200.7
Operating Segments
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues	3,622.0	3,292.4	10,349.3	10,903.1
Pre-tax operating earnings (losses)	568.8	276.9	1,630.6	1,150.7
Operating Segments | Retirement and Income Solutions
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues	1,652.9	1,579.9	4,547.8	5,665.6
Pre-tax operating earnings (losses)	243.2	281.1	811.4	700.1
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Fee
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues	580.9	531.6	1,723.9	1,584.1
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Spread
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues	1,072.0	1,048.3	2,823.9	4,081.5
Operating Segments | Principal Global Investors
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues	465.2	382.8	1,334.1	1,126.5
Pre-tax operating earnings (losses)	190.1	140.9	515.6	361.0
Operating Segments | Principal International
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues	328.1	225.3	942.3	802.2
Pre-tax operating earnings (losses)	81.0	58.7	203.8	184.0
Operating Segments | U.S. Insurance Solutions
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues	1,190.1	1,121.4	3,546.9	3,332.8
Pre-tax operating earnings (losses)	151.6	(134.1)	373.4	150.4
Operating Segments | U.S. Insurance Solutions | Specialty Benefits insurance
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues	684.4	618.1	2,007.9	1,884.1
Operating Segments | U.S. Insurance Solutions | Individual Life insurance
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues	505.7	503.3	1,539.1	1,448.8
Operating Segments | U.S. Insurance Solutions | Eliminations
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues			(0.1)	(0.1)
Operating Segments | Corporate
Operating Revenue And Profit (Loss) From Segments To Consolidated
Operating revenues	(14.3)	(17.0)	(21.8)	(24.0)
Pre-tax operating earnings (losses)	(97.1)	(69.7)	(273.6)	(244.8)
Reconciling Items
Operating Revenue And Profit (Loss) From Segments To Consolidated
Net realized capital gains (losses), net of related revenue adjustments	(188.2)	31.6	(157.0)	105.4
Adjustments related to equity method investments	(10.1)	(13.3)	(20.7)	(31.9)
Pre-tax net realized capital gains (losses), as adjusted	(133.5)	9.9	(141.7)	(41.1)
Earnings adjustments related to equity method investments and noncontrolling interest	$ (7.2)	$ (11.7)	$ (14.3)	$ (7.7)

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Segment Information - Net Realized Capital Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Information: Net realized capital gains (losses), as adjusted
Net realized capital gains (losses)	$ (152.0)	$ 65.5	$ (41.7)	$ 169.5
Derivative and hedging-related revenue adjustments	(30.6)	(37.0)	(108.4)	(85.7)
Market value adjustments to fee revenues	(0.2)		(0.6)
Adjustments related to equity method investments	(10.8)	0.2	(18.3)	(4.9)
Adjustments related to sponsored investment funds	5.8	5.1	15.9	12.5
Recognition of front-end fee revenue	(0.4)	(2.2)	(3.9)	14.0
Net realized capital gains (losses), net of related revenue adjustments	(188.2)	31.6	(157.0)	105.4
Amortization of deferred acquisition costs and other actuarial balances	9.9	62.1	22.8	(67.7)
Capital (gains) losses distributed	(33.0)	(43.7)	(86.3)	(15.7)
Market value adjustments of embedded derivatives	77.8	(40.1)	78.8	(63.1)
Pre-tax net realized capital gains (losses), as adjusted	$ (133.5)	$ 9.9	$ (141.7)	$ (41.1)

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Revenues from Contracts with Customers - Disaggregation by Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues from Contracts with Customers - Disaggregation of Revenues
Total fees and other revenues per consolidated statements of operations	$ 1,251.8	$ 1,143.0	$ 3,711.0	$ 3,332.6
Operating Segments
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers	796.5	681.9	2,329.8	2,035.6
Operating Segments | Retirement and Income Solutions
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers	146.6	135.5	441.0	447.2
Operating Segments | Principal Global Investors
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers	453.5	377.0	1,303.6	1,108.1
Fees and other revenues not within the scope of revenue recognition guidance	11.0	4.8	27.1	14.2
Total fees and other revenues per consolidated statements of operations	464.5	381.8	1,330.7	1,122.3
Operating Segments | Principal International
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers	125.1	111.1	373.5	322.2
Fees and other revenues not within the scope of revenue recognition guidance	1.0	1.4	3.1	4.2
Total fees and other revenues per consolidated statements of operations	126.1	112.5	376.6	326.4
Operating Segments | U.S. Insurance Solutions
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers	19.7	15.9	55.8	46.9
Operating Segments | Corporate
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers	51.6	42.4	155.9	111.2
Fees and other revenues not within the scope of revenue recognition guidance	(91.8)	(75.8)	(266.3)	(221.1)
Total fees and other revenues per consolidated statements of operations	(40.2)	(33.4)	(110.4)	(109.9)
Operating Segments | Retirement and Income Solutions - Fee | Retirement and Income Solutions
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers	144.2	133.4	433.8	441.0
Fees and other revenues not within the scope of revenue recognition guidance	324.1	293.5	964.3	829.1
Total fees and other revenues per consolidated statements of operations	468.3	426.9	1,398.1	1,270.1
Operating Segments | Retirement and Income Solutions - Spread | Retirement and Income Solutions
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers	2.4	2.1	7.2	6.2
Fees and other revenues not within the scope of revenue recognition guidance	2.1	1.9	6.8	7.8
Total fees and other revenues per consolidated statements of operations	4.5	4.0	14.0	14.0
Operating Segments | Specialty Benefits insurance | U.S. Insurance Solutions
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers	3.9	3.9	11.4	11.2
Fees and other revenues not within the scope of revenue recognition guidance	5.4	4.9	14.9	14.4
Total fees and other revenues per consolidated statements of operations	9.3	8.8	26.3	25.6
Operating Segments | Individual Life insurance | U.S. Insurance Solutions
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers	15.8	12.0	44.5	35.8
Fees and other revenues not within the scope of revenue recognition guidance	204.1	232.6	635.8	634.4
Total fees and other revenues per consolidated statements of operations	219.9	244.6	680.3	670.2
Operating Segments | U.S. Insurance Solutions Eliminations | U.S. Insurance Solutions
Revenues from Contracts with Customers - Disaggregation of Revenues
Total segment revenue from contracts with customers			(0.1)	(0.1)
Reconciling Items
Revenues from Contracts with Customers - Disaggregation of Revenues
Fees and other revenues not within the scope of revenue recognition guidance	455.9	463.3	1,385.7	1,283.0
Pre-tax other adjustments	$ (0.6)	$ (2.2)	$ (4.5)	$ 14.0

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Revenues from Contracts with Customers - Disaggregation within Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues from Contracts with Customers - Disaggregation of Revenues
Total fees and other revenues	$ 1,251.8	$ 1,143.0	$ 3,711.0	$ 3,332.6
Premiums and other considerations	1,230.5	1,184.3	3,335.3	4,628.4
Net investment income (loss)	1,093.4	917.9	3,167.0	2,846.1
Operating Segments
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	796.5	681.9	2,329.8	2,035.6
Total operating revenues	3,622.0	3,292.4	10,349.3	10,903.1
Operating Segments | Retirement and Income Solutions
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	146.6	135.5	441.0	447.2
Total operating revenues	1,652.9	1,579.9	4,547.8	5,665.6
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Fee
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	144.2	133.4	433.8	441.0
Fees and other revenues not within the scope of revenue recognition guidance	324.1	293.5	964.3	829.1
Total fees and other revenues	468.3	426.9	1,398.1	1,270.1
Premiums and other considerations		0.7	0.5	3.4
Net investment income (loss)	112.6	104.0	325.3	310.6
Total operating revenues	580.9	531.6	1,723.9	1,584.1
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Fee | Administrative service fee revenue
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	144.2	132.8	431.4	439.7
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Fee | Other fee revenue
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers		0.6	2.4	1.3
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Spread
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	2.4	2.1	7.2	6.2
Fees and other revenues not within the scope of revenue recognition guidance	2.1	1.9	6.8	7.8
Total fees and other revenues	4.5	4.0	14.0	14.0
Premiums and other considerations	482.1	517.1	1,111.9	2,497.7
Net investment income (loss)	585.4	527.2	1,698.0	1,569.8
Total operating revenues	1,072.0	1,048.3	2,823.9	4,081.5
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Spread | Deposit account fee revenue
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	2.2	2.1	6.7	6.2
Operating Segments | Retirement and Income Solutions | Retirement and Income Solutions - Spread | Commission income
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	0.2		0.5
Operating Segments | Principal Global Investors
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	453.5	377.0	1,303.6	1,108.1
Fees and other revenues not within the scope of revenue recognition guidance	11.0	4.8	27.1	14.2
Total fees and other revenues	464.5	381.8	1,330.7	1,122.3
Net investment income (loss)	0.7	1.0	3.4	4.2
Total operating revenues	465.2	382.8	1,334.1	1,126.5
Operating Segments | Principal Global Investors | Management fee revenue
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	389.9	330.2	1,119.9	954.7
Operating Segments | Principal Global Investors | Other fee revenue
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	63.6	46.8	183.7	153.4
Operating Segments | Principal International
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	125.1	111.1	373.5	322.2
Fees and other revenues not within the scope of revenue recognition guidance	1.0	1.4	3.1	4.2
Total fees and other revenues	126.1	112.5	376.6	326.4
Premiums and other considerations	36.6	16.6	105.8	130.2
Net investment income (loss)	165.4	96.2	459.9	345.6
Total operating revenues	328.1	225.3	942.3	802.2
Operating Segments | Principal International | Latin America
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	91.5	80.7	273.3	236.5
Operating Segments | Principal International | Asia
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	33.5	30.5	99.3	85.8
Operating Segments | Principal International | Principal International Corporate / Regional Office
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	0.5	0.2	2.0	0.7
Operating Segments | Principal International | Geographical Eliminations
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	(0.4)	(0.3)	(1.1)	(0.8)
Operating Segments | Principal International | Management fee revenue
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	123.0	110.1	367.8	319.3
Operating Segments | Principal International | Other fee revenue
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	2.1	1.0	5.7	2.9
Operating Segments | U.S. Insurance Solutions
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	19.7	15.9	55.8	46.9
Total operating revenues	1,190.1	1,121.4	3,546.9	3,332.8
Operating Segments | U.S. Insurance Solutions | Specialty Benefits insurance
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	3.9	3.9	11.4	11.2
Fees and other revenues not within the scope of revenue recognition guidance	5.4	4.9	14.9	14.4
Total fees and other revenues	9.3	8.8	26.3	25.6
Premiums and other considerations	629.6	570.9	1,851.7	1,741.8
Net investment income (loss)	45.5	38.4	129.9	116.7
Total operating revenues	684.4	618.1	2,007.9	1,884.1
Operating Segments | U.S. Insurance Solutions | Specialty Benefits insurance | Administrative service fee revenue
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	3.9	3.9	11.4	11.2
Operating Segments | U.S. Insurance Solutions | Individual Life insurance
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	15.8	12.0	44.5	35.8
Fees and other revenues not within the scope of revenue recognition guidance	204.1	232.6	635.8	634.4
Total fees and other revenues	219.9	244.6	680.3	670.2
Premiums and other considerations	82.2	79.0	265.4	255.3
Net investment income (loss)	203.6	179.7	593.4	523.3
Total operating revenues	505.7	503.3	1,539.1	1,448.8
Operating Segments | U.S. Insurance Solutions | Individual Life insurance | Administrative service fee revenue
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	6.8	5.4	19.3	16.1
Operating Segments | U.S. Insurance Solutions | Individual Life insurance | Commission income
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	9.0	6.6	25.2	19.7
Operating Segments | Corporate
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	51.6	42.4	155.9	111.2
Fees and other revenues not within the scope of revenue recognition guidance	(91.8)	(75.8)	(266.3)	(221.1)
Total fees and other revenues	(40.2)	(33.4)	(110.4)	(109.9)
Net investment income (loss)	25.9	16.4	88.6	85.9
Total operating revenues	(14.3)	(17.0)	(21.8)	(24.0)
Operating Segments | Corporate | Other fee revenue
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	17.3	13.6	51.0	38.3
Operating Segments | Corporate | Commission income
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	99.8	78.0	287.5	231.0
Operating Segments | Corporate | Revenue by type - Eliminations
Revenues from Contracts with Customers - Disaggregation of Revenues
Total revenues from contracts with customers	$ (65.5)	$ (49.2)	$ (182.6)	$ (158.1)

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Revenues from Contracts with Customers - Contract Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Contract costs
Contract cost asset	$ 187.2		$ 187.2		$ 173.0
Practical expedient, incremental costs of obtaining a contract			true
Impairment loss for contract cost asset			$ 0.0	$ 0.0
Amortization expense of contract cost asset	$ 8.0	$ 5.6	$ 24.1	$ 17.6

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Stock-Based Compensation Plans - Stock-Based Awards (Details) - USD ($) shares in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Stock-Based Compensation Plans
Stock-Based Compensation Plans - Disclosures
Compensation cost	$ 74.1	$ 67.0
Related income tax benefit	15.3	13.1
Capitalized as part of an asset	$ 1.1	$ 1.2
2020 Directors Stock Plan, the 2014 Stock Incentive Plan, the 2014 Directors Stock Plan, the Amended and Restated 2010 Stock Incentive Plan, the 2005 Directors Stock Plan, the Stock Incentive Plan or the Directors Stock Plan
Stock-Based Compensation Plans - Disclosures
Number of shares that will be granted	0.0
2021 Stock Incentive Plan
Stock-Based Compensation Plans - Disclosures
Maximum number of new shares of common stock available for grant (in shares)	24.4

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Stock-Based Compensation Plans - Nonqualified Stock Options, Assumptions and Other Disclosures (Details) - Nonqualified Stock Options $ / shares in Units, shares in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares
Stock-Based Compensation Plans - Disclosures
Options granted (in shares) | shares	0.9
Assumptions used to estimate fair value of stock options granted during period
Weighted-average expected volatility (as a percent)	34.20%
Weighted-average expected term	7 years
Weighted-average risk-free interest rate (as a percent)	1.20%
Weighted-average expected dividend yield (as a percent)	3.82%
Weighted-average estimated fair value of stock options granted (in dollars per share) | $ / shares	$ 15.67
Other nonqualified stock option disclosures
Unrecognized compensation costs | $	$ 5.8
Weighted-average service period over which unrecognized compensation costs will be recognized	1 year 6 months

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Stock-Based Compensation Plans - Performance Share Awards and Restricted Stock Units (Details) $ / shares in Units, shares in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares
Performance Share Awards
Change in nonvested units outstanding
Awards or units granted (in shares) | shares	0.3
Awards or units granted, Weighted-average grant-date fair value (in dollars per share) | $ / shares	$ 58.68
Other award and unit disclosures
Lower limit multiple of initial target awards (as a percent)	0.00%
Upper limit multiple of initial target awards (as a percent)	150.00%
Unrecognized compensation costs | $	$ 8.7
Weighted-average service period over which unrecognized compensation costs will be recognized	1 year 6 months
Restricted Stock Units
Change in nonvested units outstanding
Awards or units granted (in shares) | shares	1.1
Awards or units granted, Weighted-average grant-date fair value (in dollars per share) | $ / shares	$ 59.11
Other award and unit disclosures
Unrecognized compensation costs | $	$ 63.9
Weighted-average service period over which unrecognized compensation costs will be recognized	1 year 8 months 12 days

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Stock-Based Compensation Plans - Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan shares in Millions	9 Months Ended
	Sep. 30, 2021 $ / shares shares
Stock-Based Compensation Plans - Disclosures
Share purchases under employee stock purchase plan (in shares)	0.8
Weighted-average fair value of discount on employee stock purchase plan (in dollars per share) | $ / shares	$ 15.47
Shares available to be issued under employee stock purchase plan (in shares)	4.2

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Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net income (loss)	$ 364.3	$ 235.9	$ 1,252.2	$ 937.0
Subtract:
Net income (loss) attributable to noncontrolling interest	4.4	(0.1)	13.4	13.8
Total	$ 359.9	$ 236.0	$ 1,238.8	$ 923.2
Weighted-average shares outstanding:
Basic	268.0	274.8	270.7	274.7
Dilutive effects:
Diluted	271.9	276.8	274.4	276.4
Net income (loss) per common share:
Basic	$ 1.34	$ 0.86	$ 4.58	$ 3.36
Diluted	$ 1.32	$ 0.85	$ 4.51	$ 3.34
Nonqualified Stock Options
Dilutive effects:
Stock-based compensation awards	1.3	0.4	1.2	0.3
Restricted Stock Units
Dilutive effects:
Stock-based compensation awards	2.2	1.5	2.0	1.3
Performance Share Awards
Dilutive effects:
Stock-based compensation awards	0.4	0.1	0.5	0.1