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 March 31, 2022

OR

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

For the Transition Period from             to             

Commission File No. 1-11778

CHUBB LIMITED

(Exact name of registrant as specified in its charter)

Switzerland	98-0091805
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

Baerengasse 32
Zurich, Switzerland CH-8001
(Address of principal executive offices) (Zip Code)

+41 (0)43 456 76 00

(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 Shares, par value CHF 24.15 per share	CB	New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 0.30% Senior Notes due 2024	CB/24A	New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 0.875% Senior Notes due 2027	CB/27	New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 1.55% Senior Notes due 2028	CB/28	New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 0.875% Senior Notes due 2029	CB/29A	New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 1.40% Senior Notes due 2031	CB/31	New York Stock Exchange
Guarantee of Chubb INA Holdings Inc. 2.50% Senior Notes due 2038	CB/38A	New York Stock Exchange

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, 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.

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 number of registrant’s Common Shares (CHF 24.15 par value) outstanding as of April 22, 2022 was 423,711,369.

CHUBB LIMITED

INDEX TO FORM 10-Q

Part I.	FINANCIAL INFORMATION		Page
Item 1.	Financial Statements:
	Consolidated Balance Sheets (Unaudited) March 31, 2022 and December 31, 2021		3
	Consolidated Statements of Operations and Comprehensive Income (Unaudited) Three Months Ended March 31, 2022 and 2021		4
	Consolidated Statements of Shareholders' Equity (Unaudited) Three Months Ended March 31, 2022 and 2021		5
	Consolidated Statements of Cash Flows (Unaudited) Three Months Ended March 31, 2022 and 2021		6
	Notes to Consolidated Financial Statements (Unaudited)
	Note 1.	General	7
	Note 2.	Acquisitions	8
	Note 3.	Investments	8
	Note 4.	Fair value measurements	13
	Note 5.	Reinsurance	20
	Note 6.	Unpaid losses and loss expenses	21
	Note 7.	Commitments, contingencies, and guarantees	24
	Note 8.	Shareholders’ equity	28
	Note 9.	Share-based compensation	29
	Note 10.	Postretirement benefits	30
	Note 11.	Other income and expense	31
	Note 12.	Segment information	31
	Note 13.	Earnings per share	33
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		34
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		67
Item 4.	Controls and Procedures		69
Part II.	OTHER INFORMATION
Item 1.	Legal Proceedings		70
Item 1A.	Risk Factors		70
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds and Issuer Repurchases of Equity Securities		70
Item 6.	Exhibits		71

2

PART I FINANCIAL INFORMATION

ITEM 1. Financial Statements

CONSOLIDATED BALANCE SHEETS (Unaudited)

Chubb Limited and Subsidiaries

	March 31		December 31
(in millions of U.S. dollars, except share and per share data)	2022		2021
Assets
Investments
Fixed maturities available for sale, at fair value, net of valuation allowance - $27 and $14     (amortized cost – $91,526 and $90,493)	$	89,479	$	93,108
Fixed maturities held to maturity, at amortized cost, net of valuation allowance - $34 and $35     (fair value – $9,888 and $10,647)	9,818		10,118
Equity securities, at fair value	3,596		4,782
Short-term investments, at fair value (amortized cost – $3,408 and $3,147)	3,407		3,146
Other investments, at fair value	11,947		11,169
Total investments	118,247		122,323
Cash	1,734		1,659
Restricted cash	180		152
Securities lending collateral	1,800		1,831
Accrued investment income	822		821
Insurance and reinsurance balances receivable, net of valuation allowance - $50 and $46	11,452		11,322
Reinsurance recoverable on losses and loss expenses, net of valuation allowance - $329 and $329	17,761		17,366
Reinsurance recoverable on policy benefits	208		213
Deferred policy acquisition costs	5,587		5,513
Value of business acquired	231		236
Goodwill	15,244		15,213
Other intangible assets	5,399		5,455
Deferred tax assets	333		—
Prepaid reinsurance premiums	3,068		3,028
Investments in partially-owned insurance companies	3,161		3,130
Other assets	12,763		11,792
Total assets	$	197,990	$	200,054
Liabilities
Unpaid losses and loss expenses	$	73,844	$	72,943
Unearned premiums	19,586		19,101
Future policy benefits	5,974		5,947
Insurance and reinsurance balances payable	7,401		7,243
Securities lending payable	1,800		1,831
Accounts payable, accrued expenses, and other liabilities	14,914		15,004
Deferred tax liabilities	—		389
Repurchase agreements	1,406		1,406
Short-term debt	1,474		999
Long-term debt	14,585		15,169
Trust preferred securities	308		308
Total liabilities	141,292		140,340
Commitments and contingencies (refer to Note 7)
Shareholders’ equity
Common Shares (CHF 24.15 par value; 459,555,714 and 474,021,114 shares issued; 423,675,327 and 426,572,612 shares outstanding)	10,666		10,985
Common Shares in treasury (35,880,387 and 47,448,502 shares)	(5,700)		(7,464)
Additional paid-in capital	7,988		8,478
Retained earnings	47,148		47,365
Accumulated other comprehensive income (loss) (AOCI)	(3,404)		350
Total shareholders’ equity	56,698		59,714
Total liabilities and shareholders’ equity	$	197,990	$	200,054

See accompanying notes to the Consolidated Financial Statements

3

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Unaudited)

Chubb Limited and Subsidiaries

	Three Months Ended
	March 31
(in millions of U.S. dollars, except per share data)	2022		2021
Revenues
Net premiums written	$	9,199	$	8,662
Increase in unearned premiums	(453)		(441)
Net premiums earned	8,746		8,221
Net investment income	822		863
Net realized gains (losses) (includes $(136) and $24 reclassified from AOCI)	101		887
Total revenues	9,669		9,971
Expenses
Losses and loss expenses	4,787		5,053
Policy benefits	145		167
Policy acquisition costs	1,737		1,665
Administrative expenses	778		744
Interest expense	132		122
Other (income) expense	(310)		(490)
Amortization of purchased intangibles	71		72
Total expenses	7,340		7,333
Income before income tax	2,329		2,638
Income tax expense (includes $(22) and $4 on unrealized gains and losses reclassified from AOCI)	355		338
Net income	$	1,974	$	2,300
Other comprehensive loss
Unrealized depreciation	$	(4,788)	$	(2,293)
Reclassification adjustment for net realized (gains) losses included in net income	136		(24)
	(4,652)		(2,317)
Change in:
Cumulative foreign currency translation adjustment	67		22
Postretirement benefit liability adjustment	19		(28)
Other comprehensive loss, before income tax	(4,566)		(2,323)
Income tax benefit related to OCI items	812		412
Other comprehensive loss	(3,754)		(1,911)
Comprehensive income (loss)	$	(1,780)	$	389
Earnings per share
Basic earnings per share	$	4.64	$	5.10
Diluted earnings per share	$	4.59	$	5.07

See accompanying notes to the Consolidated Financial Statements

4

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited)

Chubb Limited and Subsidiaries

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Common Shares
Balance – beginning of period	$	10,985	$	11,064
Cancellation of treasury shares	(319)		—
Balance – end of period	10,666		11,064
Common Shares in treasury
Balance – beginning of period	(7,464)		(3,644)
Common Shares repurchased	(1,001)		(519)
Cancellation of treasury shares	2,510		—
Net shares issued under employee share-based compensation plans	255		262
Balance – end of period	(5,700)		(3,901)
Additional paid-in capital
Balance – beginning of period	8,478		9,815
Net shares issued under employee share-based compensation plans	(199)		(187)
Exercise of stock options	(21)		(24)
Share-based compensation expense	70		66
Funding of dividends declared to Retained earnings	(340)		(352)
Balance – end of period	7,988		9,318
Retained earnings
Balance – beginning of period	47,365		39,337
Net income	1,974		2,300
Cancellation of treasury shares	(2,191)		—
Funding of dividends declared from Additional paid-in capital	340		352
Dividends declared on Common Shares	(340)		(352)
Balance – end of period	47,148		41,637
Accumulated other comprehensive income (loss) (AOCI)
Net unrealized appreciation (depreciation) on investments
Balance – beginning of period	2,256		4,673
Change in period, before reclassification from AOCI, net of income tax     benefit of $834 and $401	(3,954)		(1,892)
Amounts reclassified from AOCI, net of income tax (expense) benefit of $(22) and $4	114		(20)
Change in period, net of income tax benefit of $812 and $405	(3,840)		(1,912)
Balance – end of period	(1,584)		2,761
Cumulative foreign currency translation adjustment
Balance – beginning of period	(2,146)		(1,637)
Change in period, net of income tax benefit of $4 and $2	71		24
Balance – end of period	(2,075)		(1,613)
Postretirement benefit liability adjustment
Balance – beginning of period	240		(167)
Change in period, net of income tax (expense) benefit of $(4) and $5	15		(23)
Balance – end of period	255		(190)
Accumulated other comprehensive income (loss)	(3,404)		958
Total shareholders’ equity	$	56,698	$	59,076

See accompanying notes to the Consolidated Financial Statements

5

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

Chubb Limited and Subsidiaries

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Cash flows from operating activities
Net income	$	1,974	$	2,300
Adjustments to reconcile net income to net cash flows from operating activities
Net realized (gains) losses	(101)		(887)
Amortization of premiums/discounts on fixed maturities	91		76
Amortization of purchased intangibles	71		72
Equity in net income of partially-owned entities	(361)		(497)
Deferred income taxes	93		—
Unpaid losses and loss expenses	957		1,368
Unearned premiums	502		503
Future policy benefits	36		47
Insurance and reinsurance balances payable	147		(36)
Accounts payable, accrued expenses, and other liabilities	(338)		(663)
Income taxes payable	128		101
Insurance and reinsurance balances receivable	(125)		(209)
Reinsurance recoverable	(456)		(290)
Deferred policy acquisition costs	(96)		(81)
Other	(82)		301
Net cash flows from operating activities	2,440		2,105
Cash flows from investing activities
Purchases of fixed maturities available for sale	(5,933)		(7,738)
Purchases of fixed maturities held to maturity	(143)		(102)
Purchases of equity securities	(380)		(351)
Sales of fixed maturities available for sale	1,838		1,343
Sales of equity securities	1,110		351
Maturities and redemptions of fixed maturities available for sale	3,003		4,289
Maturities and redemptions of fixed maturities held to maturity	398		604
Net change in short-term investments	(267)		595
Net derivative instruments settlements	74		87
Private equity contributions	(669)		(427)
Private equity distributions	207		206
Payment for Huatai Group interest	(113)		(65)
Other	(120)		(44)
Net cash flows used for investing activities	(995)		(1,252)
Cash flows from financing activities
Dividends paid on Common Shares	(341)		(352)
Common Shares repurchased	(1,001)		(519)
Proceeds from issuance of repurchase agreements	146		450
Repayment of repurchase agreements	(146)		(450)
Proceeds from share-based compensation plans	114		115
Policyholder contract deposits and other	118		133
Policyholder contract withdrawals and other	(111)		(124)
Tax withholding payments for share-based compensation plans	(81)		(65)
Net cash flows used for financing activities	(1,302)		(812)
Effect of foreign currency rate changes on cash and restricted cash	(40)		(36)
Net increase in cash and restricted cash	103		5
Cash and restricted cash – beginning of period	1,811		1,836
Cash and restricted cash – end of period	$	1,914	$	1,841
Supplemental cash flow information
Taxes paid	$	132	$	236
Interest paid	$	85	$	90

See accompanying notes to the Consolidated Financial Statements

6

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Chubb Limited and Subsidiaries

1. General

a) Basis of presentation

Chubb Limited is a holding company incorporated in Zurich, Switzerland. Chubb Limited, through its subsidiaries, provides a broad range of insurance and reinsurance products to insureds worldwide. Our results are reported through the following business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. Refer to Note 12 for additional information.

The interim unaudited consolidated financial statements, which include the accounts of Chubb Limited and its subsidiaries (collectively, Chubb, we, us, or our), have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) and, in the opinion of management, reflect all adjustments necessary for a fair statement of the results and financial position for such periods. All significant intercompany accounts and transactions, including internal reinsurance transactions, have been eliminated.

The results of operations and cash flows for any interim period are not necessarily indicative of the results for the full year. These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our 2021 Form 10-K.

b) Restricted cash

Restricted cash in the Consolidated balance sheets represents amounts held for the benefit of third parties and is legally or contractually restricted as to withdrawal or usage. Amounts include deposits with U.S. and non-U.S. regulatory authorities, trust funds set up for the benefit of ceding companies, and amounts pledged as collateral to meet financing arrangements.

The following table provides a reconciliation of cash and restricted cash reported within the Consolidated balance sheets that total to the amounts shown in the Consolidated statements of cash flows:

	March 31		December 31
(in millions of U.S. dollars)	2022		2021
Cash	$	1,734	$	1,659
Restricted cash	180		152
Total cash and restricted cash shown in the Consolidated statements of cash flows	$	1,914	$	1,811

c) Goodwill

During the three months ended March 31, 2022, Goodwill increased $31 million, primarily reflecting the impact of foreign exchange.

d) Accounting guidance not yet adopted

Targeted Improvements to the Accounting for Long-Duration Contracts

In August 2018, the FASB issued guidance to improve the existing recognition, measurement, presentation, and disclosure requirements for long-duration contracts issued by an insurance entity. The amendments in this update require more frequent updating of assumptions and a standardized discount rate for the future policy benefit liability, a requirement to use the fair value measurement model for policies with market risk benefits, simplified amortization of deferred acquisition costs, and enhanced disclosures. This standard will be effective in the first quarter of 2023 with early adoption permitted. We are currently assessing the effect of adopting this guidance on our financial condition and results of operations. We will be better able to quantify the effect of adopting this standard as we progress in our implementation process and draw nearer to the date of adoption.

7

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

2. Acquisitions

Cigna’s Life and Accident and Health (A&H) Insurance Business in Asia-Pacific Markets

On October 7, 2021, we entered into a definitive agreement to acquire the life and non-life insurance companies that house the personal accident, supplemental health and life insurance business of Cigna in six Asia-Pacific markets, for approximately $5.72 billion in cash, subject to certain post-closing purchase adjustments. The transaction is expected to be completed in 2022. The timing of completion is subject to required regulatory approvals and customary closing conditions.

Huatai Group

Chubb maintains a direct investment in Huatai Insurance Group Co., Ltd. (Huatai Group). Huatai Group is the parent company of, and owns 100 percent of, Huatai Property & Casualty Insurance Co., Ltd. (Huatai P&C), approximately 80 percent of Huatai Life Insurance Co., Ltd. (Huatai Life), and approximately 82 percent of Huatai Asset Management Co., Ltd. (collectively, Huatai). Huatai Group's insurance operations have more than 600 branches and approximately 19 million customers in China.

As of March 31, 2022, Chubb's aggregate ownership interest in Huatai Group was approximately 47.3 percent. Chubb applies the equity method of accounting to its investment in Huatai Group by recording its share of net income or loss in Other (income) expense in the Consolidated statements of operations.

During 2021, Chubb entered into agreements with several counterparties to purchase incremental ownership interests in Huatai Group totaling approximately 31.8 percent for approximately $2.2 billion. In connection with these agreements, Chubb paid approximately $1.1 billion in deposits. In January 2022, we paid $113 million relating to these agreements. Chubb entered into an agreement to acquire an approximate 7.1 percent ownership interest in Huatai Group for approximately $0.5 billion, which was paid as a deposit in 2020. The purchase of the additional ownership interests is contingent upon important conditions. As Chubb’s ownership interest increases, we will continue to evaluate the appropriateness of consolidation accounting in accordance with the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) 810, Consolidation, and other applicable regulations.

3. Investments

a) Fixed maturities

March 31, 2022	Amortized Cost		Valuation Allowance		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
(in millions of U.S. dollars)
Available for sale
U.S. Treasury / Agency	$	2,111	$	—	$	31	$	(40)	$	2,102
Non-U.S.	25,304		(16)		380		(884)		24,784
Corporate and asset-backed securities	38,469		(11)		360		(1,149)		37,669
Mortgage-backed securities	20,511		—		90		(796)		19,805
Municipal	5,131		—		49		(61)		5,119
	$	91,526	$	(27)	$	910	$	(2,930)	$	89,479
	Amortized Cost		Valuation Allowance		Net Carrying Value		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
Held to maturity
U.S. Treasury / Agency	$	1,180	$	—	$	1,180	$	12	$	(18)	$	1,174
Non-U.S.	1,185		(5)		1,180		19		(8)		1,191
Corporate and asset-backed securities	1,913		(28)		1,885		56		(6)		1,935
Mortgage-backed securities	1,689		—		1,689		8		(13)		1,684
Municipal	3,885		(1)		3,884		24		(4)		3,904
	$	9,852	$	(34)	$	9,818	$	119	$	(49)	$	9,888

8

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

December 31, 2021	Amortized Cost		Valuation Allowance		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
(in millions of U.S. dollars)
Available for sale
U.S. Treasury / Agency	$	2,111	$	—	$	109	$	(6)	$	2,214
Non-U.S.	25,156		(8)		953		(272)		25,829
Corporate and asset-backed securities	37,844		(6)		1,410		(185)		39,063
Mortgage-backed securities	20,080		—		532		(123)		20,489
Municipal	5,302		—		216		(5)		5,513
	$	90,493	$	(14)	$	3,220	$	(591)	$	93,108
	Amortized Cost		Valuation Allowance		Net Carrying Value		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
Held to maturity
U.S. Treasury / Agency	$	1,213	$	—	$	1,213	$	34	$	(3)	$	1,244
Non-U.S.	1,201		(5)		1,196		66		—		1,262
Corporate and asset-backed securities	2,032		(28)		2,004		197		—		2,201
Mortgage-backed securities	1,731		(1)		1,730		74		(1)		1,803
Municipal	3,976		(1)		3,975		162		—		4,137
	$	10,153	$	(35)	$	10,118	$	533	$	(4)	$	10,647

The following table presents the amortized cost of our HTM securities according to S&P rating:

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars, except for percentages)	Amortized cost		% of Total		Amortized cost		% of Total
AAA	$	2,021	21	%	$	2,089	21	%
AA	5,210		52	%	5,303		52	%
A	1,922		20	%	1,964		19	%
BBB	676		7	%	773		8	%
BB	23		—	%	23		—	%
Other	—		—	%	1		—	%
Total	$	9,852	100	%	$	10,153	100	%

9

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

The following table presents fixed maturities by contractual maturity:

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars)	Net Carrying Value		Fair Value		Net Carrying Value		Fair Value
Available for sale
Due in 1 year or less	$	4,393	$	4,393	$	4,498	$	4,498
Due after 1 year through 5 years	25,136		25,136		25,542		25,542
Due after 5 years through 10 years	27,033		27,033		28,207		28,207
Due after 10 years	13,112		13,112		14,372		14,372
	69,674		69,674		72,619		72,619
Mortgage-backed securities	19,805		19,805		20,489		20,489
	$	89,479	$	89,479	$	93,108	$	93,108
Held to maturity
Due in 1 year or less	$	871	$	872	$	888	$	894
Due after 1 year through 5 years	3,754		3,742		3,744		3,846
Due after 5 years through 10 years	2,004		2,015		2,242		2,349
Due after 10 years	1,500		1,575		1,514		1,755
	8,129		8,204		8,388		8,844
Mortgage-backed securities	1,689		1,684		1,730		1,803
	$	9,818	$	9,888	$	10,118	$	10,647

Expected maturities could differ from contractual maturities because borrowers may have the right to call or prepay obligations, with or without call or prepayment penalties. 

b) Gross unrealized loss

Fixed maturities in an unrealized loss position at March 31, 2022 and December 31, 2021 comprised both investment grade and below investment grade securities for which fair value declined, principally due to rising interest rates since the date of purchase. Refer to Note 3 in the 2021 Form 10-K for further information on factors considered in the evaluation of expected credit losses.

The following tables present, for Available for Sale (AFS) fixed maturities in an unrealized loss position (including securities on loan) that are not deemed to have expected credit losses, the aggregate fair value and gross unrealized loss by length of time the security has been in an unrealized loss position:

	0 – 12 Months				Over 12 Months				Total
March 31, 2022	Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury / Agency	$	946	$	(31)	$	98	$	(9)	$	1,044	$	(40)
Non-U.S.	12,654		(608)		2,385		(222)		15,039		(830)
Corporate and asset-backed securities	21,082		(899)		2,041		(216)		23,123		(1,115)
Mortgage-backed securities	13,657		(646)		1,589		(150)		15,246		(796)
Municipal	1,225		(60)		16		(1)		1,241		(61)
Total AFS fixed maturities	$	49,564	$	(2,244)	$	6,129	$	(598)	$	55,693	$	(2,842)

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

	0 – 12 Months				Over 12 Months				Total
December 31, 2021	Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury / Agency	$	363	$	(3)	$	70	$	(3)	$	433	$	(6)
Non-U.S.	6,917		(196)		1,093		(62)		8,010		(258)
Corporate and asset-backed securities	9,449		(145)		806		(32)		10,255		(177)
Mortgage-backed securities	8,086		(116)		190		(7)		8,276		(123)
Municipal	226		(5)		—		—		226		(5)
Total AFS fixed maturities	$	25,041	$	(465)	$	2,159	$	(104)	$	27,200	$	(569)

c) Net realized gains (losses)

The following table presents the components of Net realized gains (losses):

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Fixed maturities:
Gross realized gains	$	39	$	37
Gross realized losses	(127)		(19)
Net (provision for) recovery of expected credit losses	(12)		6
Impairment (1)	(36)		—
Total fixed maturities	(136)		24
Equity securities	56		367
Other investments	55		38
Foreign exchange	75		76
Investment and embedded derivative instruments	47		109
Fair value adjustments on insurance derivative	35		319
S&P futures	42		(44)
Other derivative instruments	1		(1)
Other (2)	(74)		(1)
Net realized gains (losses) (pre-tax)	$	101	$	887

(1)Relates to certain securities we intended to sell and securities written to market entering default.

(2)Other realized losses include impairment of assets related to Chubb's Russian entities.

Realized gains and losses from Equity securities and Other investments from the table above include sales of securities and unrealized gains and losses from fair value changes as follows:

							Three Months Ended
							March 31
	2022						2021
(in millions of U.S. dollars)	Equity Securities		Other Investments		Total		Equity Securities		Other Investments		Total
Net gains recognized during the period	$	56	$	55	$	111	$	367	$	38	$	405
Less: Net gains recognized from sales of securities	255		—		255		45		—		45
Unrealized gains (losses) recognized for securities still held at reporting date	$	(199)	$	55	$	(144)	$	322	$	38	$	360

11

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

The following table presents a roll-forward of valuation allowance for expected credit losses on fixed maturities:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Available for sale
Valuation allowance for expected credit losses - beginning of period	$	14	$	20
Provision for expected credit loss	17		4
Recovery of expected credit loss	(4)		(9)
Valuation allowance for expected credit losses - end of period	$	27	$	15
Held to maturity
Valuation allowance for expected credit losses - beginning of period	$	35	$	44
Recovery of expected credit loss	(1)		(1)
Valuation allowance for expected credit losses - end of period	$	34	$	43

d) Alternative investments

Alternative investments include partially-owned investment companies, investment funds, and limited partnerships measured at fair value using net asset value (NAV) as a practical expedient. The following table presents, by investment category, the expected liquidation period, fair value, and maximum future funding commitments of alternative investments:

	Expected Liquidation Period of Underlying Assets	March 31, 2022				December 31, 2021
(in millions of U.S. dollars)		Fair Value		Maximum Future Funding Commitments		Fair Value		Maximum Future Funding Commitments
Financial	2 to 10 Years	$	1,146	$	153	$	1,096	$	267
Real assets	2 to 13 Years	1,544		735		1,193		766
Distressed	2 to 8 Years	886		920		753		641
Private credit	3 to 8 Years	84		280		84		279
Traditional	2 to 14 Years	6,928		5,121		6,647		5,200
Vintage	1 to 2 Years	65		—		68		—
Investment funds	Not Applicable	294		—		267		—
		$	10,947	$	7,209	$	10,108	$	7,153

Included in all categories in the above table, except for Investment funds, are investments for which Chubb will never have the contractual option to redeem but receives distributions based on the liquidation of the underlying assets. Further, for all categories except for Investment funds, Chubb does not have the ability to sell or transfer the investments without the consent from the general partner of individual funds.

Investment Category:	Consists of investments in private equity funds:
Financial	targeting financial services companies, such as financial institutions and insurance services worldwide
Real assets	targeting investments related to hard physical assets, such as real estate, infrastructure and natural resources
Distressed	targeting distressed corporate debt/credit and equity opportunities in the U.S.
Private credit	targeting privately originated corporate debt investments, including senior secured loans and subordinated bonds
Traditional	employing traditional private equity investment strategies, such as buyout and growth equity globally
Vintage	funds where the initial fund term has expired

    

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Investment funds employ various investment strategies, such as long/short equity and arbitrage/distressed. Included in this category are investments for which Chubb has the option to redeem at agreed upon value as described in each investment fund’s subscription agreement. Depending on the terms of the various subscription agreements, investment fund investments may be redeemed monthly, quarterly, semi-annually, or annually. If Chubb wishes to redeem an investment fund investment, it must first determine if the investment fund is still in a lock-up period (a time when Chubb cannot redeem its investment so that the investment fund manager has time to build the portfolio). If the investment fund is no longer in its lock-up period, Chubb must then notify the investment fund manager of its intention to redeem by the notification date prescribed by the subscription agreement. Subsequent to notification, the investment fund can redeem Chubb’s investment within several months of the notification. Notice periods for redemption of the investment funds are up to 270 days. Chubb can redeem its investment funds without consent from the investment fund managers.

e) Restricted assets

Chubb is required to maintain assets on deposit with various regulatory authorities to support its insurance and reinsurance operations. These requirements are generally promulgated in the statutory regulations of the individual jurisdictions. The assets on deposit are available to settle insurance and reinsurance liabilities. Chubb is also required to restrict assets pledged under repurchase agreements, which represent Chubb's agreement to sell securities and repurchase them at a future date for a predetermined price. We use trust funds in certain large reinsurance transactions where the trust funds are set up for the benefit of the ceding companies and generally take the place of letter of credit (LOC) requirements. We have investments in segregated portfolios primarily to provide collateral or guarantees for LOC and derivative transactions. Included in restricted assets at March 31, 2022 and December 31, 2021 are investments, primarily fixed maturities, totaling $15,954 million and $17,092 million, respectively, and cash of $180 million and $152 million, respectively.

The following table presents the components of restricted assets:

	March 31		December 31
(in millions of U.S. dollars)	2022		2021
Trust funds	$	8,785	$	9,915
Deposits with U.S. regulatory authorities	2,370		2,402
Deposits with non-U.S. regulatory authorities	2,802		2,873
Assets pledged under repurchase agreements	1,443		1,420
Other pledged assets	734		634
Total	$	16,134	$	17,244

4. Fair value measurements

a) Fair value hierarchy

Fair value of financial assets and financial liabilities is estimated based on the framework established in the fair value accounting guidance. The guidance defines fair value as the price to sell an asset or transfer a liability (an exit price) in an orderly transaction between market participants and establishes a three-level valuation hierarchy based on the reliability of the inputs. The fair value hierarchy gives the highest priority to quoted prices in active markets and the lowest priority to unobservable data.

The three levels of the hierarchy are as follows:

•Level 1 – Unadjusted quoted prices for identical assets or liabilities in active markets;

•Level 2 – Includes, among other items, inputs other than quoted prices that are observable for the asset or liability such as

interest rates and yield curves, quoted prices for similar assets and liabilities in active markets, and quoted prices for identical or similar assets and liabilities in markets that are not active; and

•Level 3 – Inputs that are unobservable and reflect management’s judgments about assumptions that market participants

would use in pricing an asset or liability.

We categorize financial instruments within the valuation hierarchy at the balance sheet date based upon the lowest level of inputs that are significant to the fair value measurement.

13

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

We use pricing services to obtain fair value measurements for the majority of our investment securities. Based on management’s understanding of the methodologies used, these pricing services only produce an estimate of fair value if there is observable market information that would allow them to make a fair value estimate. Based on our understanding of the market inputs used by the pricing services, all applicable investments have been valued in accordance with GAAP. We do not adjust prices obtained from pricing services. The following is a description of the valuation techniques and inputs used to determine fair values for financial instruments carried at fair value, as well as the general classification of such financial instruments pursuant to the valuation hierarchy.

Fixed maturities

We use pricing services to estimate fair value measurements for the majority of our fixed maturities. The pricing services use market quotations for fixed maturities that have quoted prices in active markets; such securities are classified within Level 1. For fixed maturities other than U.S. Treasury securities that generally do not trade on a daily basis, the pricing services prepare estimates of fair value measurements using their pricing applications or pricing models, which include available relevant market information, benchmark curves, benchmarking of like securities, sector groupings, and matrix pricing. Additional valuation factors that can be taken into account are nominal spreads, dollar basis, and liquidity adjustments. The pricing services evaluate each asset class based on relevant market and credit information, perceived market movements, and sector news. The market inputs used in the pricing evaluation, listed in the approximate order of priority include: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, reference data, and industry and economic events. The extent of the use of each input is dependent on the asset class and the market conditions. Given the asset class, the priority of the use of inputs may change, or some market inputs may not be relevant. Additionally, fixed maturities valuation is more subjective when markets are less liquid due to the lack of market based inputs (i.e., stale pricing) and may require the use of models to be priced. The lack of market based inputs may increase the potential that an investment's estimated fair value is not reflective of the price at which an actual transaction would occur. The overwhelming majority of fixed maturities are classified within Level 2 because the most significant inputs used in the pricing techniques are observable. For a small number of fixed maturities, we obtain a single broker quote (typically from a market maker). Due to the disclaimers on the quotes that indicate that the price is indicative only, we include these fair value estimates in Level 3. 

Equity securities

Equity securities with active markets are classified within Level 1 as fair values are based on quoted market prices. For equity securities in markets which are less active, fair values are based on market valuations and are classified within Level 2. Equity securities for which pricing is unobservable are classified within Level 3.

Short-term investments

Short-term investments, which comprise securities due to mature within one year of the date of purchase that are traded in active markets, are classified within Level 1 as fair values are based on quoted market prices. Securities such as commercial paper and discount notes are classified within Level 2 because these securities are typically not actively traded due to their approaching maturity, and as such, their cost approximates fair value. Short-term investments for which pricing is unobservable are classified within Level 3.

Other investments

Fair values for the majority of Other investments including investments in partially-owned investment companies, investment funds, and limited partnerships are based on their respective NAV and are excluded from the fair value hierarchy table below. Certain of our long-duration contracts are supported by assets that do not qualify for separate account reporting under GAAP. These assets comprise mutual funds, classified within Level 1 in the valuation hierarchy on the same basis as other equity securities traded in active markets. Other investments also include equity securities, classified within Level 1 and fixed maturities, classified within Level 2, held in rabbi trusts maintained by Chubb for deferred compensation plans and supplemental retirement plans and are classified within the valuation hierarchy on the same basis as other equity securities and fixed maturities.

Securities lending collateral

The underlying assets included in Securities lending collateral in the Consolidated balance sheets are fixed maturities which are classified in the valuation hierarchy on the same basis as other fixed maturities. Excluded from the valuation hierarchy is the corresponding liability related to Chubb’s obligation to return the collateral plus interest as it is reported at contract value and not fair value in the Consolidated balance sheets.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Investment derivative instruments

Actively traded investment derivative instruments, including futures, options, and forward contracts are classified within Level 1 as fair values are based on quoted market prices. The fair value of cross-currency swaps and interest rate swaps is based on market valuations and is classified within Level 2. Investment derivative instruments are recorded in either Other assets or Accounts payable, accrued expenses, and other liabilities in the Consolidated balance sheets.

Other derivative instruments

We maintain positions in exchange-traded equity futures contracts designed to limit exposure to a severe equity market decline, which would cause an increase in expected claims and, therefore, an increase in future policy benefit reserves for our guaranteed minimum death benefits (GMDB) and an increase in the fair value liability for our guaranteed living benefits (GLB) reinsurance business. Our positions in exchange-traded equity futures contracts are classified within Level 1. The fair value of the majority of the remaining positions in other derivative instruments is based on significant observable inputs including equity security and interest rate indices. Accordingly, these are classified within Level 2. Other derivative instruments based on unobservable inputs are classified within Level 3. Other derivative instruments are recorded in either Other assets or Accounts payable, accrued expenses, and other liabilities in the Consolidated balance sheets.

Separate account assets

Separate account assets represent segregated funds where investment risks are borne by the customers, except to the extent of certain guarantees made by Chubb. Separate account assets comprise mutual funds classified within Level 1 in the valuation hierarchy on the same basis as other equity securities traded in active markets. Separate account assets also include fixed maturities classified within Level 2 because the most significant inputs used in the pricing techniques are observable. Excluded from the valuation hierarchy are the corresponding liabilities as they are reported at contract value and not fair value in the Consolidated balance sheets. Separate account assets are recorded in Other assets in the Consolidated balance sheets.

Guaranteed living benefits

The GLB arises from life reinsurance programs covering living benefit guarantees whereby we assume the risk of guaranteed minimum income benefits (GMIB) associated with variable annuity contracts. GLBs are recorded in Accounts payable, accrued expenses, and other liabilities in the Consolidated balance sheets. For GLB reinsurance, Chubb estimates fair value using an internal valuation model which includes current market information and estimates of policyholder behavior. All of the treaties contain claim limits, which are factored into the valuation model. The fair value depends on a number of factors, including interest rates, equity markets, credit risk, current account value, market volatility, expected annuitization rates and other policyholder behavior, and changes in policyholder mortality. Because of the significant use of unobservable inputs including policyholder behavior, GLB reinsurance is classified within Level 3.

15

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Financial instruments measured at fair value on a recurring basis, by valuation hierarchy

March 31, 2022	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury / Agency	$	1,562	$	540	$	—	$	2,102
Non-U.S.	—		24,166		618		24,784
Corporate and asset-backed securities	—		35,440		2,229		37,669
Mortgage-backed securities	—		19,785		20		19,805
Municipal	—		5,119		—		5,119
	1,562		85,050		2,867		89,479
Equity securities	3,514		—		82		3,596
Short-term investments	1,954		1,449		4		3,407
Other investments (1)	253		452		—		705
Securities lending collateral	—		1,800		—		1,800
Investment derivative instruments	163		—		—		163
Other derivative instruments	3		—		—		3
Separate account assets	5,468		92		—		5,560
Total assets measured at fair value (1)	$	12,917	$	88,843	$	2,953	$	104,713
Liabilities:
Investment derivative instruments	$	212	$	—	$	—	$	212
Other derivative instruments	63		—		—		63
GLB (2)	—		—		696		696
Total liabilities measured at fair value	$	275	$	—	$	696	$	971

(1)Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $10,947 million, policy loans of $244 million and other investments of $51 million at March 31, 2022 measured using NAV as a practical expedient.

(2)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

16

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

December 31, 2021	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury / Agency	$	1,680	$	534	$	—	$	2,214
Non-U.S.	—		25,196		633		25,829
Corporate and asset-backed securities	—		37,014		2,049		39,063
Mortgage-backed securities	—		20,463		26		20,489
Municipal	—		5,513		—		5,513
	1,680		88,720		2,708		93,108
Equity securities	4,705		—		77		4,782
Short-term investments	1,744		1,395		7		3,146
Other investments (1)	286		481		—		767
Securities lending collateral	—		1,831		—		1,831
Investment derivative instruments	58		—		—		58
Separate account assets	5,461		99		—		5,560
Total assets measured at fair value (1)	$	13,934	$	92,526	$	2,792	$	109,252
Liabilities:
Investment derivative instruments	$	166	$	—	$	—	$	166
Other derivative instruments	16		—		—		16
GLB (2)	—		—		745		745
Total liabilities measured at fair value	$	182	$	—	$	745	$	927

(1)Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $10,108 million, policy loans of $243 million and other investments of $51 million at December 31, 2021 measured using NAV as a practical expedient.

(2)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

Level 3 financial instruments

The following table presents the significant unobservable inputs used in the Level 3 liability valuations. Excluded from the table below are inputs used to determine the fair value of Level 3 assets which are based on single broker quotes and contain no quantitative unobservable inputs developed by management. The majority of our fixed maturities classified as Level 3 used external pricing when markets are less liquid due to the lack of market inputs (i.e., stale pricing, broker quotes).

(in millions of U.S. dollars, except for percentages)	Fair Value				Valuation Technique	Significant Unobservable Inputs	Ranges	Weighted Average (1)
	March 31, 2022		December 31, 2021
GLB (1)	$	696	$	745	Actuarial model	Lapse rate	3% – 31%	4.4	%
						Annuitization rate	0% – 100%	3.7	%

(1)The weighted-average lapse and annuitization rates are determined by weighting each treaty's rates by the GLB contracts fair value.

The most significant policyholder behavior assumptions include lapse rates and the GMIB annuitization rates. Assumptions regarding lapse rates and GMIB annuitization rates differ by treaty, but the underlying methodologies to determine rates applied to each treaty are comparable.

A lapse rate is the percentage of in-force policies surrendered in a given calendar year. All else equal, as lapse rates increase, ultimate claim payments will decrease.

The GMIB annuitization rate is the percentage of policies for which the policyholder will elect to annuitize using the guaranteed benefit provided under the GMIB. All else equal, as GMIB annuitization rates increase, ultimate claim payments will increase, subject to treaty claim limits.

17

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

The effect of changes in key market factors on assumed lapse and annuitization rates reflect emerging trends using data available from cedants. For treaties with limited experience, rates are established by blending the experience with data received from other ceding companies. The model and related assumptions are regularly re-evaluated by management and enhanced, as appropriate, based upon additional experience obtained related to policyholder behavior and availability of updated information such as market conditions, market participant assumptions, and demographics of in-force annuities. For the three months ended March 31, 2022 and 2021, no material refinements were made to the model. For detailed information on our lapse and annuitization rate assumptions, refer to Note 4 to the Consolidated Financial Statements of our 2021 Form 10-K.

The following tables present a reconciliation of the beginning and ending balances of financial instruments measured at fair value using significant unobservable inputs (Level 3):

	Assets										Liabilities
Three Months Ended March 31, 2022 (in millions of U.S. dollars)	Available-for-Sale Debt Securities						Equity securities		Short-term investments		GLB (1)
	Non-U.S.		Corporate and asset- backed securities		Mortgage-backed securities
Balance, beginning of period	$	633	$	2,049	$	26	$	77	$	7	$	745
Transfers into Level 3	18		29		—		1		—		—
Transfers out of Level 3	(23)		(50)		(5)		—		—		—
Change in Net Unrealized Gains/Losses in OCI	(13)		(22)		—		—		—		—
Net Realized Gains/Losses	(2)		—		—		4		—		(35)
Purchases	43		315		—		3		2		—
Sales	(6)		(27)		—		(3)		—		—
Settlements	(32)		(65)		(1)		—		(5)		—
Other	—		—		—		—		—		(14)
Balance, end of period	$	618	$	2,229	$	20	$	82	$	4	$	696
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date	$	(2)	$	—	$	—	$	4	$	—	$	(35)
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date	$	(13)	$	(22)	$	—	$	—	$	—	$	—

(1)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

18

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

	Assets												Liabilities
Three Months Ended March 31, 2021 (in millions of U.S. dollars)	Available-for-Sale Debt Securities						Equity securities		Short-term investments		Other investments		GLB (1)
	Non-U.S.		Corporate and asset- backed securities		Mortgage-backed securities
Balance, beginning of period	$	546	$	1,573	$	60	$	73	$	5	$	10	$	1,089
Transfers into Level 3	—		17		—		—		—		—		—
Change in Net Unrealized Gains/Losses in OCI	8		6		—		—		—		—		—
Net Realized Gains/Losses	—		(3)		—		2		—		—		(319)
Purchases	121		169		—		3		1		—		—
Sales	(7)		(25)		—		(3)		—		—		—
Settlements	(18)		(125)		(9)		—		(5)		—		—
Other	—		—		—		—		—		—		(10)
Balance, end of period	$	650	$	1,612	$	51	$	75	$	1	$	10	$	760
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date	$	—	$	(3)	$	—	$	2	$	—	$	—	$	(319)
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date	$	10	$	11	$	—	$	—	$	—	$	—	$	—

(1)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

b) Financial instruments disclosed, but not measured, at fair value

Chubb uses various financial instruments in the normal course of its business. Our insurance contracts are excluded from fair value of financial instruments accounting guidance, and therefore, are not included in the amounts discussed below.

The carrying values of cash, other assets, other liabilities, and other financial instruments not included below approximated their fair values. Refer to the 2021 Form 10-K for information on the fair value methods and assumptions for investments in partially-owned insurance companies, short-term and long-term debt, repurchase agreements, and trust-preferred securities.

19

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

The following tables present fair value, by valuation hierarchy, and carrying value of the financial instruments not measured at fair value:

March 31, 2022	Fair Value								Net Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury / Agency	$	1,126	$	48	$	—	$	1,174	$	1,180
Non-U.S.	—		1,191		—		1,191		1,180
Corporate and asset-backed securities	—		1,935		—		1,935		1,885
Mortgage-backed securities	—		1,684		—		1,684		1,689
Municipal	—		3,904		—		3,904		3,884
Total assets	$	1,126	$	8,762	$	—	$	9,888	$	9,818
Liabilities:
Repurchase agreements	$	—	$	1,406	$	—	$	1,406	$	1,406
Short-term debt	—		1,484		—		1,484		1,474
Long-term debt	—		14,702		—		14,702		14,585
Trust preferred securities	—		425		—		425		308
Total liabilities	$	—	$	18,017	$	—	$	18,017	$	17,773

December 31, 2021	Fair Value								Net Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury / Agency	$	1,192	$	52	$	—	$	1,244	$	1,213
Non-U.S.	—		1,262		—		1,262		1,196
Corporate and asset-backed securities	—		2,201		—		2,201		2,004
Mortgage-backed securities	—		1,803		—		1,803		1,730
Municipal	—		4,137		—		4,137		3,975
Total assets	$	1,192	$	9,455	$	—	$	10,647	$	10,118
Liabilities:
Repurchase agreements	$	—	$	1,406	$	—	$	1,406	$	1,406
Short-term debt	—		1,019		—		1,019		999
Long-term debt	—		16,848		—		16,848		15,169
Trust preferred securities	—		460		—		460		308
Total liabilities	$	—	$	19,733	$	—	$	19,733	$	17,882

5. Reinsurance

Reinsurance recoverable on ceded reinsurance

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars)	Net Reinsurance Recoverable (1)		Valuation allowance		Net Reinsurance Recoverable (1)		Valuation allowance
Reinsurance recoverable on unpaid losses and loss expenses	$	16,646	$	276	$	16,184	$	271
Reinsurance recoverable on paid losses and loss expenses	1,115		53		1,182		58
Reinsurance recoverable on losses and loss expenses	$	17,761	$	329	$	17,366	$	329
Reinsurance recoverable on policy benefits	$	208	$	4	$	213	$	4

(1)Net of valuation allowance for uncollectible reinsurance.

20

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Chubb Limited and Subsidiaries

The increase in reinsurance recoverable on losses and loss expenses was primarily due to unfavorable prior period development in certain lines and higher underlying ceded exposures due to premium growth.

The following table presents a roll-forward of valuation allowance for uncollectible reinsurance related to Reinsurance recoverable on loss and loss expenses:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Valuation allowance for uncollectible reinsurance - beginning of period	$	329	$	314
Provision for uncollectible reinsurance	3		3
Write-offs charged against the valuation allowance	(4)		—
Foreign exchange revaluation	1		—
Valuation allowance for uncollectible reinsurance - end of period	$	329	$	317

For additional information, refer to Note 1 d) to the Consolidated Financial Statements of our 2021 Form 10-K.

6. Unpaid losses and loss expenses

The following table presents a reconciliation of beginning and ending Unpaid losses and loss expenses:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Gross unpaid losses and loss expenses – beginning of period	$	72,943	$	67,811
Reinsurance recoverable on unpaid losses – beginning of period (1)	(16,184)		(14,647)
Net unpaid losses and loss expenses – beginning of period	56,759		53,164
Net losses and loss expenses incurred in respect of losses occurring in:
Current year	5,192		5,249
Prior years (2)	(405)		(196)
Total	4,787		5,053
Net losses and loss expenses paid in respect of losses occurring in:
Current year	792		732
Prior years	3,569		3,161
Total	4,361		3,893
Foreign currency revaluation and other	13		71
Net unpaid losses and loss expenses – end of period	57,198		54,395
Reinsurance recoverable on unpaid losses (1)	16,646		14,860
Gross unpaid losses and loss expenses – end of period	$	73,844	$	69,255

(1)    Net of valuation allowance for uncollectible reinsurance.

(2)    Relates to prior period loss reserve development only and excludes prior period development related to reinstatement premiums, expense adjustments and earned premiums totaling $165 million and $4 million for the three months ended March 31, 2022 and 2021, respectively.

Gross and net unpaid losses and loss expenses increased $901 million and $439 million, respectively, for the three months ended March 31, 2022, driven by an increase in underlying exposure due to premium growth, partially offset by catastrophe loss payments, favorable prior period development, and crop activity.

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Chubb Limited and Subsidiaries

Prior Period Development

Prior period development (PPD) arises from changes to loss estimates recognized in the current year that relate to loss events that occurred in previous calendar years and excludes the effect of losses from the development of earned premium from previous accident years. Long-tail lines include lines such as workers' compensation, general liability, and financial lines; while short-tail lines include lines such as most property lines, energy, personal accident, and agriculture.

The following table summarizes (favorable) and adverse PPD by segment.

	Three Months Ended March 31
(in millions of U.S. dollars)	Long-tail		Short-tail		Total
2022
North America Commercial P&C Insurance	$	(20)	$	(88)	$	(108)
North America Personal P&C Insurance	—		(51)		(51)
North America Agricultural Insurance	—		(26)		(26)
Overseas General Insurance	—		(60)		(60)
Global Reinsurance	—		(3)		(3)
Corporate	8		—		8
Total	$	(12)	$	(228)	$	(240)
2021
North America Commercial P&C Insurance	$	(46)	$	(81)	$	(127)
North America Personal P&C Insurance	—		(40)		(40)
North America Agricultural Insurance	—		(2)		(2)
Overseas General Insurance	—		(25)		(25)
Global Reinsurance	—		(7)		(7)
Corporate	9		—		9
Total	$	(37)	$	(155)	$	(192)

Significant prior period movements by segment, principally driven by reserve reviews completed during each respective period, are discussed in more detail below. The remaining net development for long-tail lines and short-tail business for each segment and Corporate comprises numerous favorable and adverse movements across a number of lines and accident years, none of which is significant individually or in the aggregate.

North America Commercial P&C Insurance

2022

For the three months ended March 31, 2022, net favorable PPD was $108 million, which was the net result of several underlying favorable and adverse movements, and was driven by the following principal changes:

•Net favorable development of $20 million in long-tail business, primarily from:

•Net favorable development of $38 million in workers’ compensation, mainly in accident years 2017 and prior, which were impacted by lower than expected loss emergence and related updates to loss development patterns;

•Net favorable development of $38 million in personal casualty business, mainly in accident years 2020 and 2021, which had lower than expected reported loss emergence and lower than expected loss frequency; and

•Net adverse development of $60 million in excess and umbrella portfolios, in accident years 2019 and prior, driven by higher than expected loss emergence.

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Chubb Limited and Subsidiaries

•Net favorable development of $88 million in short-tail business, primarily from:

•Net favorable development of $76 million in A&H, in accident years 2020 and 2021, driven by lower than expected loss emergence;

•Net favorable development of $38 million in surety, mainly in accident year 2020, driven by lower than expected loss emergence; and

•Net adverse development of $21 million in small commercial property lines, mainly in accident year 2021, driven by higher than expected loss emergence.

2021

For the three months ended March 31, 2021, net favorable PPD was $127 million, which was the net result of several underlying favorable and adverse movements, and was driven by the following principal changes:

•Net favorable development of $46 million in long-tail business, primarily from:

•Net favorable development of $51 million in financial lines (errors & omissions and third-party cyber risk), in accident years 2016 and 2017, from lower than expected loss emergence, partly offset by higher than expected development in accident year 2019;

•Net favorable development of $35 million in voluntary environmental lines, in accident years 2017 and prior, from lower than expected loss emergence, partly offset by higher than expected development in accident year 2019; and

•Net adverse development of $57 million in excess and umbrella portfolios, with accident years 2015 through 2019 continuing to experience higher than expected loss development, partly offset by favorable development in accident years 2014 and prior.

•Net favorable development of $81 million in short-tail business, primarily from:

•Net favorable development of $49 million in surety, mainly in accident years 2018 and 2019, driven by lower than expected loss emergence;

•Net favorable development of $48 million in A&H, in accident years 2019 and 2020, where loss emergence was lower than expected;

•Net favorable development of $25 million in property and marine coverages in accident year 2020, driven by lower than expected non-catastrophe loss development; and

•Net adverse development of $41 million in first-party cyber risk, in accident years 2019 and 2020, which experienced higher than expected loss development as well as heightened frequency and severity.

North America Personal P&C Insurance

2022

For the three months ended March 31, 2022, net favorable PPD was $51 million, in accident year 2021, which experienced better than expected loss emergence in homeowners.

2021

For the three months ended March 31, 2021, net favorable PPD was $40 million, in accident year 2020, which experienced better than expected non-catastrophe loss emergence in homeowners and valuables.

North America Agricultural Insurance

2022

For the three months ended March 31, 2022, net favorable PPD was $26 million, mainly due to better than expected crop yield results related to the 2021 crop year.

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Chubb Limited and Subsidiaries

Overseas General Insurance

2022

For the three months ended March 31, 2022, net favorable PPD was $60 million, across short-tail lines, mainly in accident years 2020 and 2021, primarily from:

•Net favorable development of $24 million in property lines driven by favorable loss emergence in Continental Europe; and

•Net favorable development of $22 million in A&H lines driven by favorable loss developments across all regions.

2021

For the three months ended March 31, 2021, net favorable PPD was $25 million, which reflects favorable loss experience across several lines, mainly in accident year 2020, none of which were significant individually or in the aggregate.

7. Commitments, contingencies, and guarantees

a) Derivative instruments

Foreign currency management

As a global company, Chubb entities transact business in multiple currencies. Our policy is to generally match assets, liabilities, and required capital for each individual jurisdiction in local currency, which would include the use of derivatives discussed below. We do not hedge our net asset non-U.S. dollar capital positions; however, we do consider economic hedging for planned cross border transactions.

Derivative instruments employed

Chubb maintains positions in derivative instruments such as futures, options, swaps, and foreign currency forward contracts for which the primary purposes are to manage duration and foreign currency exposure, yield enhancement, or to obtain an exposure to a particular financial market. Chubb also maintains positions in convertible securities that contain embedded derivatives. Investment derivative instruments are recorded in either Other assets (OA) or Accounts payable, accrued expenses, and other liabilities (AP); convertible bonds are recorded in Fixed maturities available for sale (FM AFS); and convertible equity securities are recorded in Equity securities (ES) in the Consolidated balance sheets. These are the most numerous and frequent derivative transactions. In addition, Chubb, from time to time, purchases to be announced mortgage-backed securities (TBAs) as part of its investing activities.

Under reinsurance programs covering GLBs, Chubb assumes the risk of GLBs, principally GMIB, associated with variable annuity contracts. The GMIB risk is triggered if, at the time the contract holder elects to convert the accumulated account value to a periodic payment stream (annuitize), the accumulated account value is not sufficient to provide a guaranteed minimum level of monthly income. The GLB reinsurance product meets the definition of a derivative instrument and is classified within AP. Chubb also generally maintains positions in exchange-traded equity futures contracts on equity market indices to limit equity exposure in the GMDB and GLB book of business.

All derivative instruments are carried at fair value with changes in fair value recorded in Net realized gains (losses) in the Consolidated statements of operations. None of the derivative instruments are designated as hedges for accounting purposes.

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Chubb Limited and Subsidiaries

The following table presents the balance sheet locations, fair values of derivative instruments in an asset or (liability) position, and notional values/payment provisions of our derivative instruments:

				March 31, 2022						December 31, 2021
	Consolidated Balance Sheet Location	Fair Value				Notional Value/ Payment Provision		Fair Value				Notional Value/ Payment Provision
(in millions of U.S. dollars)		Derivative Asset		Derivative (Liability)				Derivative Asset		Derivative (Liability)
Investment and embedded derivative   instruments:
Foreign currency forward contracts	OA / (AP)	$	58	$	(154)	$	7,478	$	25	$	(139)	$	6,182
Options/Futures contracts on notes, bonds, and equities	OA / (AP)	105		(58)		9,282		33		(27)		12,944
Convertible securities (1)	FM AFS / ES	16		—		19		11		—		12
		$	179	$	(212)	$	16,779	$	69	$	(166)	$	19,138
Other derivative instruments:
Futures contracts on equities (2)	OA / (AP)	$	—	$	(63)	$	814	$	—	$	(16)	$	905
Other	OA / (AP)	3		—		79		—		—		3
		$	3	$	(63)	$	893	$	—	$	(16)	$	908
GLB (3)	(AP)	$	—	$	(696)	$	1,558	$	—	$	(745)	$	1,432

(1)Includes fair value of embedded derivatives.

(2)Related to GMDB and GLB book of business.

(3)Note that the payment provision related to GLB is the net amount at risk. The concept of a notional value does not apply to the GLB reinsurance contracts.

At March 31, 2022 and December 31, 2021, net derivative liabilities of $107 million and $123 million, respectively, included in the table above were subject to a master netting agreement. The remaining derivatives included in the table above were not subject to a master netting agreement.

The following table presents net realized gains (losses) related to derivative instrument activity in the Consolidated statements of operations:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Investment and embedded derivative instruments:
Foreign currency forward contracts	$	(54)	$	(16)
All other futures contracts, options, and equities	102		125
Convertible securities (1)	(1)		—
Total investment and embedded derivative instruments	$	47	$	109
GLB and other derivative instruments:
GLB	$	35	$	319
Futures contracts on equities (2)	42		(44)
Other	1		(1)
Total GLB and other derivative instruments	$	78	$	274
	$	125	$	383

(1)Includes embedded derivatives.

(2)Related to GMDB and GLB book of business.

b) Derivative instrument objectives

(i) Foreign currency exposure management

A foreign currency forward contract (forward) is an agreement between participants to exchange specific currencies at a future date. Chubb uses forwards to minimize the effect of fluctuating foreign currencies as discussed above.

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Chubb Limited and Subsidiaries

(ii) Duration management and market exposure

Futures

Futures contracts give the holder the right and obligation to participate in market movements, determined by the index or underlying security on which the futures contract is based. Settlement is made daily in cash by an amount equal to the change in value of the futures contract times a multiplier that scales the size of the contract. Exchange-traded futures contracts on money market instruments, notes and bonds are used in fixed maturity portfolios to more efficiently manage duration, as substitutes for ownership of the money market instruments, bonds and notes without significantly increasing the risk in the portfolio. Investments in futures contracts may be made only to the extent that there are assets under management not otherwise committed.

Exchange-traded equity futures contracts are used to limit exposure to a severe equity market decline, which would cause an increase in expected claims and therefore, an increase in future policy benefit reserves for GMDB and an increase in the fair value liability for GLB reinsurance business.

Options

An option contract conveys to the holder the right, but not the obligation, to purchase or sell a specified amount or value of an underlying security at a fixed price. Option contracts are used in our investment portfolio as protection against unexpected shifts in interest rates, which would affect the duration of the fixed maturity portfolio. By using options in the portfolio, the overall interest rate sensitivity of the portfolio can be reduced. Option contracts may also be used as an alternative to futures contracts in the synthetic strategy as described above.

The price of an option is influenced by the underlying security, level of interest rates, expected volatility, time to expiration, and supply and demand.

The credit risk associated with the above derivative financial instruments relates to the potential for non-performance by counterparties. Although non-performance is not anticipated, in order to minimize the risk of loss, management monitors the creditworthiness of its counterparties and obtains collateral. The performance of exchange-traded instruments is guaranteed by the exchange on which they trade. For non-exchange-traded instruments, the counterparties are principally banks which must meet certain criteria according to our investment guidelines.

Other

Included within Other are derivatives intended to reduce potential losses which may arise from certain exposures in our insurance business. The economic benefit provided by these derivatives is similar to purchased reinsurance. For example, Chubb may enter into crop derivative contracts to protect underwriting results in the event of a significant decline in commodity prices.

(iii) Convertible security investments

A convertible security is a debt instrument or preferred stock that can be converted into a predetermined amount of the issuer’s equity. The convertible option is an embedded derivative within the host instruments which are classified in the investment portfolio as either available for sale or as an equity security. Chubb purchases convertible securities for their total return and not specifically for the conversion feature.

(iv) TBA

By acquiring TBAs, we make a commitment to purchase a future issuance of mortgage-backed securities. For the period between purchase of the TBAs and issuance of the underlying security, we account for our position as a derivative in the Consolidated Financial Statements. Chubb purchases TBAs, from time to time, both for their total return and for the flexibility they provide related to our mortgage-backed security strategy.

(v) GLB

Under the GLB program, as the assuming entity, Chubb is obligated to provide coverage until the expiration or maturity of the underlying deferred annuity contracts or the expiry of the reinsurance treaty. The GLB is accounted for as a derivative and is recorded at fair value. Fair value represents management’s estimate of an exit price and thus, includes a risk margin. We may recognize a realized loss for other changes in fair value due to adverse changes in the capital markets (e.g., declining interest rates and/or declining U.S. and/or international equity markets) and changes in actual or estimated future policyholder behavior (e.g., increased annuitization or decreased lapse rates) although we expect the business to be profitable.

To mitigate adverse changes in the capital markets, we maintain positions in exchange-traded equity futures contracts, as noted under section "(ii) Futures" above. These futures increase in fair value when the S&P 500 index decreases (and decrease in fair

26

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Chubb Limited and Subsidiaries

value when the S&P 500 index increases). The net impact of gains or losses related to changes in fair value of the GLB liability and the exchange-traded equity futures are included in Net realized gains (losses).

c) Securities lending and secured borrowings

Chubb participates in a securities lending program operated by a third-party banking institution whereby certain assets are loaned to qualified borrowers and from which we earn an incremental return. The securities lending collateral can only be drawn down by Chubb in the event that the institution borrowing the securities is in default under the lending agreement. An indemnification agreement with the lending agent protects us in the event a borrower becomes insolvent or fails to return any of the securities on loan. The collateral is recorded in Securities lending collateral and the liability is recorded in Securities lending payable in the Consolidated balance sheets.

The following table presents the carrying value of collateral held under securities lending agreements by investment category and remaining contractual maturity of the underlying agreements:

	Remaining contractual maturity
	March 31, 2022		December 31, 2021
(in millions of U.S. dollars)	Overnight and Continuous
Collateral held under securities lending agreements:
Cash	$	1,000	$	931
U.S. Treasury / Agency	106		128
Non-U.S.	663		752
Corporate and asset-backed securities	23		12
Mortgage-backed securities	—		1
Equity securities	8		7
	$	1,800	$	1,831
Gross amount of recognized liability for securities lending payable	$	1,800	$	1,831

At March 31, 2022 and December 31, 2021, our repurchase agreement obligations of $1,406 million were fully collateralized. In contrast to securities lending programs, the use of cash received is not restricted for the repurchase obligations. The fair value of the underlying securities sold remains in Fixed maturities available for sale, and the repurchase agreement obligation is recorded in Repurchase agreements in the Consolidated balance sheets.  

The following table presents the carrying value of collateral pledged under repurchase agreements by investment category and remaining contractual maturity of the underlying agreements:

	Remaining contractual maturity
	March 31, 2022								December 31, 2021
	Up to 30 Days		30-90 Days		Greater than 90 Days		Total		30-90 Days		Greater than 90 Days		Total
(in millions of U.S. dollars)
Collateral pledged under repurchase agreements:
Cash	$	43	$	—	$	—	$	43	$	—	$	29	$	29
U.S. Treasury / Agency	—		—		102		102		103		—		103
Mortgage-backed securities	358		466		474		1,298		—		1,288		1,288
	$	401	$	466	$	576	$	1,443	$	103	$	1,317	$	1,420
Gross amount of recognized liabilities for repurchase agreements							$	1,406					$	1,406
Difference (1)							$	37					$	14

(1)Per the repurchase agreements, the amount of collateral posted is required to exceed the amount of gross liability.

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Chubb Limited and Subsidiaries

Potential risks exist in our secured borrowing transactions due to market conditions and counterparty exposure. With collateral that we pledge, there is a risk that the collateral may not be returned at the expiration of the agreement. If the counterparty fails to return the collateral, Chubb will have free use of the borrowed funds until our collateral is returned. In addition, we may encounter the risk that Chubb may not be able to renew outstanding borrowings with a new term or with an existing counterparty due to market conditions including a decrease in demand as well as more restrictive terms from banks due to increased regulatory and capital constraints. Should this condition occur, Chubb may seek alternative borrowing sources or reduce borrowings. Additionally, increased margins and collateral requirements due to market conditions would increase our restricted assets as we are required to provide additional collateral to support the transaction.

d) Fixed maturities

At March 31, 2022, we have commitments to purchase fixed income securities of $622 million over the next several years.

e) Other investments

At March 31, 2022, included in Other investments in the Consolidated balance sheet are investments in limited partnerships and partially-owned investment companies with a carrying value of $10.7 billion. In connection with these investments, we have commitments that may require funding of up to $7.2 billion over the next several years. At December 31, 2021, these investments had a carrying value of $9.8 billion with a commitment that may require funding of up to $7.2 billion.

f) Income taxes

At March 31, 2022, $64 million of unrecognized tax benefits remain outstanding. It is reasonably possible that, over the next twelve months, the amount of unrecognized tax benefits may change resulting from the re-evaluation of unrecognized tax benefits arising from examinations by taxing authorities, settlements and the lapses of statutes of limitations. With few exceptions, Chubb is no longer subject to income tax examinations for years before 2012.

g) Legal proceedings

Our insurance subsidiaries are subject to claims litigation involving disputed interpretations of policy coverages and, in some jurisdictions, direct actions by allegedly-injured persons seeking damages from policyholders. These lawsuits, involving claims on policies issued by our subsidiaries which are typical to the insurance industry in general and in the normal course of business, are considered in our loss and loss expense reserves. In addition to claims litigation, we are subject to lawsuits and regulatory actions in the normal course of business that do not arise from or directly relate to claims on insurance policies. This category of business litigation typically involves, among other things, allegations of underwriting errors or misconduct, employment claims, regulatory activity, or disputes arising from our business ventures. In the opinion of management, our ultimate liability for these matters could be, but we believe is not likely to be, material to our consolidated financial condition and results of operations.

h) Lease commitments

At March 31, 2022, and December 31, 2021, the right-of-use asset was $437 million and $445 million, respectively, recorded within Other assets and the lease liability was $470 million and $484 million, respectively, recorded within Accounts payable, accrued expenses, and other liabilities on the Consolidated balance sheets. These leases consist principally of real estate operating leases that are amortized on a straight-line basis over the term of the lease, which expire at various dates.

8. Shareholders’ equity

All of Chubb’s Common Shares are authorized under Swiss corporate law. Though the par value of Common Shares is stated in Swiss francs, Chubb continues to use U.S. dollars as its reporting currency for preparing the Consolidated Financial statements. Under Swiss corporate law, dividends, including distributions from legal reserves or through a reduction in par value (par value reduction), must be stated in Swiss francs though dividend payments are made by Chubb in U.S. dollars. At March 31, 2022, our Common Shares had a par value of CHF 24.15 per share.

At our May 2021 and 2020 annual general meeting, our shareholders approved annual dividends for the following year of up to $3.20 per share and $3.12 per share, respectively, which were paid in four quarterly installments of $0.80 per share and $0.78 per share, respectively, at dates determined by the Board of Directors (Board) after the annual general meetings by way of a distribution from capital contribution reserves, transferred to free reserves for payment.

Dividend distributions per Common Share for the three months ended March 31, 2022 and 2021 were $0.80 (CHF 0.74) and $0.78 (CHF 0.70), respectively.

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Chubb Limited and Subsidiaries

Increases in Common Shares in treasury are due to open market repurchases of Common Shares and the surrender of Common Shares to satisfy tax withholding obligations in connection with the vesting of restricted stock and the forfeiture of unvested restricted stock. Decreases in Common Shares in treasury are principally due to grants of restricted stock, exercises of stock options, purchases under the Employee Stock Purchase Plan (ESPP), and share cancellations. At the Chubb Limited Extraordinary General Meeting of Shareholders, held on November 3, 2021, shareholders approved the cancellation of 14,465,400 shares repurchased under our share repurchase program during the first six months of 2021. The capital reduction by cancellation of shares was subject to publication requirements and a two-month waiting period in accordance with Swiss law and became effective on January 17, 2022. During the three months ended March 31, 2022, 4,869,900 shares were repurchased, 14,465,400 shares were canceled, and 1,972,615 net shares were issued under employee share-based compensation plans. At March 31, 2022, 35,880,387 Common Shares remain in treasury.

Chubb Limited securities repurchase authorizations

The Board has authorized share repurchase programs as follows:

•$1.5 billion of Chubb Common Shares from November 19, 2020 through December 31, 2021;

•$1.0 billion increase to the November 2020 share repurchase program to a total of $2.5 billion in February 2021, effective through December 31, 2021; and

•One-time incremental share repurchase program of $5.0 billion of Chubb Common Shares from July 19, 2021 through June 30, 2022.

The following table presents repurchases of Chubb's Common Shares conducted in a series of open market transactions under the Board authorizations:

	Three Months Ended				April 1, 2022 through April 28, 2022
			March 31
(in millions of U.S. dollars, except share data)	2022		2021
Number of shares repurchased	4,869,900		3,110,000		115,000
Cost of shares repurchased	$	1,001	$	519	$	24
Repurchase authorization remaining at end of period	$	1,648	$	1,982	$	1,624

9. Share-based compensation

The Chubb Limited 2016 Long-Term Incentive Plan, as amended and restated (the Amended 2016 LTIP), permits grants of both incentive and non-qualified stock options principally at an option price per share equal to the grant date fair value of Chubb's Common Shares. Stock options are generally granted with a 3-year vesting period and a 10-year term. Stock options typically vest in equal annual installments over the respective vesting period, which is also the requisite service period. On February 24, 2022, Chubb granted 1,702,679 stock options with a weighted-average grant date fair value of $35.21 each. The fair value of the options issued is estimated on the grant date using the Black-Scholes option pricing model.

The Amended 2016 LTIP also permits grants of service-based restricted stock and restricted stock units as well as performance-based restricted stock awards. Chubb generally grants service-based restricted stock and restricted stock units with a 4-year vesting period, based on a graded vesting schedule. The performance-based restricted stock awards granted comprise target awards and premium awards that cliff vest at the end of a 3-year performance period based on both tangible book value (shareholders' equity less goodwill and intangible assets, net of tax) per share growth and P&C combined ratio compared to a defined group of peer companies. Premium awards are subject to an additional vesting provision based on total shareholder return compared to our peer group. The restricted stock is principally granted at market close price on the grant date. On February 24, 2022, Chubb granted 809,644 service-based restricted stock awards, 295,195 service-based restricted stock units, and 294,229 performance-based stock awards to employees and officers with a grant date fair value of $199.03 each. Each restricted stock unit represents our obligation to deliver to the holder one Common Share upon vesting.

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Chubb Limited and Subsidiaries

10. Postretirement benefits

The components of net pension and other postretirement benefit costs (benefits) reflected in Net income in the Consolidated statements of operations were as follows:

	Pension Benefit Plans								Other Postretirement Benefit Plans
	2022				2021				2022		2021
Three Months Ended March 31	U.S. Plans		Non-U.S. Plans		U.S. Plans		Non-U.S. Plans
(in millions of U.S. dollars)
Service cost	$	—	$	1	$	—	$	1	$	—	$	—
Non-service cost (benefit):
Interest cost	21		6		18		5		—		—
Expected return on plan assets	(71)		(11)		(64)		(11)		—		—
Amortization of net actuarial loss	—		—		—		1		—		—
Amortization of prior service cost	—		—		—		—		—		(20)
Settlements	—		—		—		—		—		—
Total non-service cost (benefit)	(50)		(5)		(46)		(5)		—		(20)
Net periodic benefit cost (benefit)	$	(50)	$	(4)	$	(46)	$	(4)	$	—	$	(20)

The line items in which the service cost and non-service cost (benefit) components of net periodic benefit cost (benefit) are included in the Consolidated statements of operations were as follows:

	Pension Benefit Plans				Other Postretirement Benefit Plans
Three Months Ended March 31	2022		2021		2022		2021
(in millions of U.S. dollars)
Service cost:
Losses and loss expenses	$	—	$	—	$	—	$	—
Administrative expenses	1		1		—		—
Total service cost	1		1		—		—
Non-service cost (benefit):
Losses and loss expenses	(5)		(5)		—		(2)
Administrative expenses	(50)		(46)		—		(18)
Total non-service cost (benefit)	(55)		(51)		—		(20)
Net periodic benefit cost (benefit)	$	(54)	$	(50)	$	—	$	(20)

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Chubb Limited and Subsidiaries

11. Other income and expense

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Equity in net income of partially-owned entities (1)	$	361	$	497
Gains (losses) from fair value changes in separate account assets (2)	(31)		4
Federal excise and capital taxes	(4)		(5)
Other	(16)		(6)
Total	$	310	$	490

(1)     Equity in net income of partially-owned entities includes $40 million and $49 million attributable to our investments in Huatai (Huatai Group, Huatai P&C, and Huatai Life) for the three months ended March 31, 2022 and 2021, respectively.

(2)     Related to gains (losses) from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP.

Other income and expense includes equity in net income of partially-owned entities, which includes our share of net income or loss, both underlying operating income and mark-to-market movement, related to partially-owned investment companies (private equity) and partially-owned insurance companies. Also included in Other income and expense are gains (losses) from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP. The offsetting movement in the separate account liabilities is included in Policy benefits in the Consolidated statements of operations. Certain federal excise and capital taxes incurred as a result of capital management initiatives are included in Other income and expense as these are considered capital transactions and are excluded from underwriting results. Bad debt expense for uncollectible premiums is also included in Other income and expense.

12. Segment information

Chubb operates through six business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. Corporate results primarily include income and expenses not attributable to reportable segments and losses and loss expenses of asbestos and environmental (A&E) liabilities and certain other non-A&E run-off exposures.

Management uses underwriting income (loss) as the basis for segment performance. Chubb calculates underwriting income (loss) by subtracting Losses and loss expenses, Policy benefits, Policy acquisition costs, and Administrative expenses from Net premiums earned. Segment income (loss) includes underwriting income (loss), net investment income (loss), and other operating income and expense items such as each segment's share of the operating income (loss) related to partially-owned entities and miscellaneous income and expense items for which the segments are held accountable. Our main measure of segment performance is Segment income (loss), which also includes amortization of purchased intangibles acquired by the segment. We determined that this definition of segment income (loss) is appropriate and aligns with how the business is managed. We continue to evaluate our segments as our business continues to evolve and may further refine our segments and segment income (loss) measures. Certain items are presented in a different manner for segment reporting purposes than in the Consolidated Financial Statements. These items are reconciled to the consolidated presentation in the Segment measure reclass column below and include:

•Losses and loss expenses include realized gains and losses on crop derivatives. These derivatives were purchased to provide economic benefit, in a manner similar to reinsurance protection, in the event that a significant decline in commodity pricing impacts underwriting results. We view gains and losses on these derivatives as part of the results of our underwriting operations, and therefore realized gains (losses) from these derivatives are reclassified to losses and loss expenses.

•Policy benefits include fair value changes on separate accounts that do not qualify for separate accounting under GAAP. These gains and losses have been reclassified from Other (income) expense. We view gains and losses from fair value changes in both separate account assets and liabilities as part of the results of our underwriting operations, and therefore these gains and losses are reclassified to policy benefits.

•Net investment income includes investment income reclassified from Other (income) expense related to partially-owned investment companies (private equity partnerships) where our ownership interest is in excess of three percent. We view investment income from these equity-method private equity partnerships as net investment income for segment reporting purposes.

31

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

The following tables present the Statement of Operations by segment:

For the Three Months Ended March 31, 2022 (in millions of U.S. dollars)	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance		Global Reinsurance		Life Insurance		Corporate		Segment Measure Reclass		Chubb Consolidated
Net premiums written	$	4,039	$	1,180	$	62	$	3,079	$	253	$	586	$	—	$	—	$	9,199
Net premiums earned	4,114		1,247		(29)		2,628		235		551		—		—		8,746
Losses and loss expenses	2,497		713		(92)		1,389		115		154		10		1		4,787
Policy benefits	—		—		—		—		—		176		—		(31)		145
Policy acquisition costs	573		260		12		679		62		151		—		—		1,737
Administrative expenses	265		69		(1)		269		9		84		83		—		778
Underwriting income (loss)	779		205		52		291		49		(14)		(93)		30		1,299
Net investment income (loss)	489		59		7		147		85		103		(5)		(63)		822
Other (income) expense	6		1		—		2		—		(28)		(259)		(32)		(310)
Amortization expense of    purchased intangibles	—		2		7		14		—		2		46		—		71
Segment income	$	1,262	$	261	$	52	$	422	$	134	$	115	$	115	$	(1)	$	2,360
Net realized gains (losses)													100		1		101
Interest expense													132		—		132
Income tax expense													355		—		355
Net income (loss)													$	(272)	$	—	$	1,974

For the Three Months Ended March 31, 2021 (in millions of U.S. dollars)	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance		Global Reinsurance		Life Insurance		Corporate		Segment Measure Reclass		Chubb Consolidated
Net premiums written	$	3,664	$	1,098	$	183	$	2,890	$	207	$	620	$	—	$	—	$	8,662
Net premiums earned	3,674		1,184		110		2,478		180		595		—		—		8,221
Losses and loss expenses	2,560		819		85		1,263		120		198		9		(1)		5,053
Policy benefits	—		—		—		—		—		163		—		4		167
Policy acquisition costs	514		247		12		668		45		179		—		—		1,665
Administrative expenses	254		60		3		266		8		82		71		—		744
Underwriting income (loss)	346		58		10		281		7		(27)		(80)		(3)		592
Net investment income (loss)	540		65		7		141		70		98		(17)		(41)		863
Other (income) expense	2		1		—		1		—		(34)		(415)		(45)		(490)
Amortization expense of    purchased intangibles	—		3		7		12		—		1		49		—		72
Segment income	$	884	$	119	$	10	$	409	$	77	$	104	$	269	$	1	$	1,873
Net realized gains (losses)													888		(1)		887
Interest expense													122		—		122
Income tax expense													338		—		338
Net income													$	697	$	—	$	2,300

Underwriting assets are reviewed in total by management for purposes of decision-making. Other than Unpaid losses and loss expenses, Future policy benefits, Reinsurance recoverables, Goodwill and Other intangible assets, Chubb does not allocate assets to its segments.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

13. Earnings per share

	Three Months Ended
	March 31
(in millions of U.S. dollars, except share and per share data)	2022		2021
Numerator:
Net income	$	1,974	$	2,300
Denominator:
Denominator for basic earnings per share:
Weighted-average shares outstanding	425,805,105		450,539,568
Denominator for diluted earnings per share:
Share-based compensation plans	3,985,729		2,795,971
Weighted-average shares outstanding and assumed conversions	429,790,834		453,335,539
Basic earnings per share	$	4.64	$	5.10
Diluted earnings per share	$	4.59	$	5.07
Potential anti-dilutive share conversions	681,032		1,952,612

Excluded from weighted-average shares outstanding and assumed conversions is the impact of securities that would have been anti-dilutive during the respective periods. These securities consisted of stock options in which the underlying exercise prices were greater than the average market prices of our Common Shares. Refer to Note 12 to the Consolidated Financial Statements of our 2021 Form 10-K for additional information on stock options.

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ITEM 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

The following is a discussion of our results of operations, financial condition, and liquidity and capital resources as of and for the three months ended March 31, 2022.

All comparisons in this discussion are to the corresponding prior year period unless otherwise indicated. All dollar amounts are rounded. However, percent changes and ratios are calculated using whole dollars. Accordingly, calculations using rounded dollars may differ.

Our results of operations and cash flows for any interim period are not necessarily indicative of our results for the full year. This discussion should be read in conjunction with our consolidated financial statements and related notes and our Management’s Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2021 (2021 Form 10-K).

Other Information

We routinely post important information for investors on our website (investors.chubb.com). We use this website as a means of disclosing material, non-public information and for complying with our disclosure obligations under Securities and Exchange Commission (SEC) Regulation FD (Fair Disclosure). Accordingly, investors should monitor the Investor Information portion of our website, in addition to following our press releases, SEC filings, public conference calls, and webcasts. The information contained on, or that may be accessed through, our website is not incorporated by reference into, and is not a part of, this report.

MD&A Index	Page
Forward-Looking Statements	35
Overview	36
Consolidated Operating Results	36
Segment Operating Results	41
Net Realized and Unrealized Gains (Losses)	50
Effective Income Tax Rate	51
Non-GAAP Reconciliation	51
Amortization of Purchased Intangibles and Other Amortization	55
Net Investment Income	56
Investments	57
Critical Accounting Estimates	61
Unpaid Losses and Loss Expenses	61
Asbestos and Environmental (A&E)	61
Fair Value Measurements	61
Catastrophe Management	62
Global Property Catastrophe Reinsurance Program	63
Liquidity	64
Capital Resources	65
Information Provided In Connection With Outstanding Debt of Subsidiaries	66

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Forward-Looking Statements

The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. Any written or oral statements made by us or on our behalf may include forward-looking statements that reflect our current views with respect to future events and financial performance. The words “believe,” “anticipate,” “estimate,” “project,” “should,” “plan,” “expect,” “intend,” “hope,” “feel,” “foresee,” “will likely result,” “will continue,” and variations thereof and similar expressions, identify forward-looking statements. These forward-looking statements are subject to certain risks, uncertainties, and other factors that could, should potential events occur, cause actual results to differ materially from such statements. These risks, uncertainties, and other factors, which are described in more detail elsewhere herein and in other documents we file with the U.S. Securities and Exchange Commission (SEC), include but are not limited to:

•actual amount of new and renewal business, premium rates, underwriting margins, market acceptance of our products, and risks associated with the introduction of new products and services and entering new markets; the competitive environment in which we operate, including trends in pricing or in policy terms and conditions, which may differ from our projections and changes in market conditions that could render our business strategies ineffective or obsolete;

•losses arising out of natural or man-made catastrophes; actual loss experience from insured or reinsured events and the timing of claim payments; the uncertainties of the loss-reserving and claims-settlement processes, including the difficulties associated with assessing environmental damage and asbestos-related latent injuries, the impact of aggregate-policy-coverage limits, the impact of bankruptcy protection sought by various asbestos producers and other related businesses, and the timing of loss payments;

•infection rates and severity of COVID-19 and related risks, and their effects on our business operations and claims activity, and any adverse impact to our insureds, brokers, agents, and employees; actual claims may exceed our best estimate of ultimate insurance losses incurred which could change including as a result of, among other things, the impact of legislative or regulatory actions taken in response to COVID-19;

•changes in the distribution or placement of risks due to increased consolidation of insurance and reinsurance brokers; material differences between actual and expected assessments for guaranty funds and mandatory pooling arrangements; the ability to collect reinsurance recoverable, credit developments of reinsurers, and any delays with respect thereto and changes in the cost, quality, or availability of reinsurance;

•uncertainties relating to governmental, legislative and regulatory policies, developments, actions, investigations, and treaties; judicial decisions and rulings, new theories of liability, legal tactics, and settlement terms; the effects of data privacy or cyber laws or regulation; global political conditions and possible business disruption or economic contraction that may result from such events;

•developments in global financial markets, including changes in interest rates, stock markets, and other financial markets; increased government involvement or intervention in the financial services industry; the cost and availability of financing, and foreign currency exchange rate fluctuations; changing rates of inflation; and other general economic and business conditions, including the depth and duration of potential recession;

•the availability of borrowings and letters of credit under our credit facilities; the adequacy of collateral supporting funded high deductible programs; the amount of dividends received from subsidiaries;

•changes to our assessment as to whether it is more likely than not that we will be required to sell, or have the intent to sell, available for sale fixed maturity investments before their anticipated recovery;

•actions that rating agencies may take from time to time, such as financial strength or credit ratings downgrades or placing these ratings on credit watch negative or the equivalent;

•the effects of public company bankruptcies and accounting restatements, as well as disclosures by and investigations of public companies relating to possible accounting irregularities, and other corporate governance issues;

•acquisitions made performing differently than expected, our failure to realize anticipated expense-related efficiencies or growth from acquisitions, the impact of acquisitions on our pre-existing organization, including with respect to our announced acquisitions not closing; risks and uncertainties relating to our planned purchases of additional interests in Huatai Insurance Group Co., Ltd. (Huatai Group), including our ability to receive Chinese insurance regulatory approval and complete the purchases;

•risks associated with being a Swiss corporation, including reduced flexibility with respect to certain aspects of capital management and the potential for additional regulatory burdens; share repurchase plans and share cancellations;

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•loss of the services of any of our executive officers without suitable replacements being recruited in a reasonable time frame;

•the ability of our technology resources, including information systems and security, to perform as anticipated such as with respect to preventing material information technology failures or third-party infiltrations or hacking resulting in consequences adverse to Chubb or its customers or partners; the ability of our company to increase use of data analytics and technology as part of our business strategy and adapt to new technologies; and

•management’s response to these factors and actual events (including, but not limited to, those described above).

You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of their dates. We undertake no obligation to publicly update or review any forward-looking statements, whether as a result of new information, future events or otherwise.

Overview

Chubb Limited is the Swiss-incorporated holding company of the Chubb Group of Companies. Chubb Limited, which is headquartered in Zurich, Switzerland, and its direct and indirect subsidiaries (collectively, the Chubb Group of Companies, Chubb, we, us, or our) are a global insurance and reinsurance organization, serving the needs of a diverse group of clients worldwide. At March 31, 2022, we had total assets of $198 billion and shareholders’ equity of $57 billion. Chubb was incorporated in 1985 at which time it opened its first business office in Bermuda and continues to maintain operations in Bermuda. We operate through six business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. For more information on our segments refer to “Segment Information” under Item 1 in our 2021 Form 10-K.

Consolidated Operating Results – Three Months Ended March 31, 2022 and 2021

	Three Months Ended
	March 31				% Change
(in millions of U.S. dollars, except for percentages)	2022		2021		Q-22 vs. Q-21
Net premiums written	$	9,199	$	8,662	6.2	%
Net premiums written - constant dollars (1)					8.1	%
Net premiums earned	8,746		8,221		6.4	%
Net investment income	822		863		(4.8)	%
Net realized gains (losses)	101		887		(88.6)	%
Total revenues	9,669		9,971		(3.0)	%
Losses and loss expenses	4,787		5,053		(5.3)	%
Policy benefits	145		167		(13.1)	%
Policy acquisition costs	1,737		1,665		4.3	%
Administrative expenses	778		744		4.6	%
Interest expense	132		122		7.4	%
Other (income) expense	(310)		(490)		(36.7)	%
Amortization of purchased intangibles	71		72		(2.0)	%
Total expenses	7,340		7,333		0.1	%
Income before income tax	2,329		2,638		(11.7)	%
Income tax expense	355		338		5.2	%
Net income	$	1,974	$	2,300	(14.2)	%

(1)     On a constant-dollar basis. Amounts are calculated by translating prior period results using the same local currency exchange rates as the comparable current period.

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Financial Highlights for the Three Months Ended March 31, 2022

•Net income was $2.0 billion compared with $2.3 billion in the prior year period. Net income in the current quarter was driven by strong underwriting results, including growth in net premiums earned and improvements in our combined ratios. Net income is lower in the current year from lower year-over-year after-tax net realized gains on equity securities of $257 million and a lower gain of $198 million on our variable annuity reinsurance portfolio.

•Consolidated net premiums written were $9.2 billion, up 6.2 percent, or 8.1 percent in constant dollars, primarily from growth in both commercial lines and consumer lines of 7.9 percent and 2.9 percent, respectively, or 9.4 percent and 5.5 percent in constant dollars, respectively.

•Consolidated net premiums earned were $8.7 billion, up 6.4 percent, or 8.0 percent in constant dollars, primarily from growth in both commercial lines and consumer lines of 9.9 percent and 0.2 percent, respectively, or 11.1 percent and 2.7 percent in constant dollars, respectively.

•Total pre-tax and after-tax catastrophe losses were $333 million (4.0 percentage points of the P&C combined ratio) and $290 million, respectively, compared with $700 million (9.1 percentage points of the P&C combined ratio) and $570 million, respectively, in the prior year period.

•Total pre-tax and after-tax favorable prior period development were $240 million (3.2 percentage points of the P&C combined ratio) and $195 million, respectively, compared with $192 million (2.5 percentage points of the P&C combined ratio) and $156 million, respectively, in the prior year period.

•The P&C combined ratio was 84.3 percent compared with 91.8 percent in the prior year period. P&C current accident year (CAY) combined ratio excluding catastrophe losses was 83.5 percent compared with 85.2 percent in the prior year period. The current year ratios decreased due to underlying loss ratio improvement and the favorable impact of higher net premiums earned on the expense ratio.

•Net investment income was $822 million compared with $863 million in the prior year period, reflecting lower reinvestment rates on new and reinvested fixed maturities.

•Operating cash flow was $2.4 billion for the quarter compared with $2.1 billion in the prior year period.

•Shareholders' equity decreased by $3.0 billion in the quarter, as net income of $2.0 billion was more than offset by net unrealized losses on investments of $3.8 billion after-tax from rising interest rates. In addition, shareholders' equity reflected total capital returned to shareholders in the quarter of $1.3 billion, including share repurchases of $1.0 billion, at an average purchase price of $205.53 per share, and dividends of $340 million.

37

Net Premiums Written	Three Months Ended March 31						% Change
(in millions of U.S. dollars, except for percentages)	2022		2021		Q-22 vs. Q-21		C$ Q-22 vs. Q-21
Commercial casualty	$	1,837	$	1,649	11.4	%	12.8	%
Workers' compensation	603		563		7.2	%	7.2	%
Financial lines	1,182		1,090		8.5	%	10.1	%
Surety	153		158		(3.1)	%	(1.7)	%
Commercial multiple peril (1)	290		263		10.0	%	10.0	%
Property and other short-tail lines	1,777		1,594		11.5	%	14.3	%
Total Commercial P&C lines	5,842		5,317		9.9	%	11.5	%
Agriculture	62		183		(65.9)	%	(65.9)	%
Personal automobile	412		387		6.5	%	9.0	%
Personal homeowners	830		775		7.1	%	7.7	%
Personal other	495		468		5.7	%	8.4	%
Total Personal lines	1,737		1,630		6.5	%	8.2	%
Total Property and Casualty lines	7,641		7,130		7.2	%	8.8	%
Global A&H lines (2)	975		982		(0.6)	%	2.8	%
Reinsurance lines	253		207		22.0	%	22.4	%
Life	330		343		(4.0)	%	(0.2)	%
Total consolidated	$	9,199	$	8,662	6.2	%	8.1	%

(1)Commercial multiple peril represents retail package business (property and general liability).

(2)For purposes of this schedule only, A&H results from our Combined North America and International businesses, normally included in the Life Insurance and Overseas General Insurance segments, respectively, as well as the A&H results of our North America Commercial P&C segment, are included in Global A&H lines above.

The increase in consolidated net premiums written for the three months ended March 31, 2022 reflects growth across most lines of business. Commercial lines growth was 7.9 percent and consumer lines growth was 2.9 percent, or 9.4 percent and 5.5 percent, respectively, on a constant dollar basis, driven by higher new business, positive rate increases, and strong renewal retention. Agriculture growth was impacted by $161 million of return of premium to the U.S. government under the profit-sharing agreement reflecting the profitable 2021 crop year. Commercial lines growth excluding Agriculture increased 10.3 percent, or 11.9 percent in constant dollars.

•Commercial casualty grew primarily in North America, Europe and Asia, driven by higher new business, strong retention and positive rate increases.

•Workers' compensation growth was due to higher renewal business, including exposure increases, in North America.

•Financial lines grew in North America, Asia, and Europe, reflecting higher new business, strong retention and positive rate increases.

•Commercial multiple peril increased due to higher renewal business, including exposure and rate increases, in North America.

•Property and other short-tail lines grew due to higher new business, strong retention, and positive rate increases in North America, Europe, Latin America and Asia.

•Agriculture decreased due to return of premium to the U.S. government noted above. Excluding this return of premium, there was underlying growth in crop insurance and Chubb Agribusiness, reflecting higher commodity prices and volatility factors, which improved pricing, and policy count growth.

•Personal lines increased due to new business and strong renewal retention, from both rate and exposure increases, mainly in homeowners; partially offset by cancellations in parts of California exposed to wildfires. In addition, the prior year included the unfavorable impact of reinstatement premiums related to 2021 winter storm losses and automobile return premiums. This prior year impact and adverse impact of the cancellations noted above, contributed 1.8 percentage points to the year-over-year growth.

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•Global A&H lines increased on a constant-dollar basis as lines in Latin America, Europe, and Asia began to recover from less travel volume and reduced consumer activity in the prior year. Our North American Combined Insurance supplemental A&H business decreased due to the continued impact of the COVID-19 pandemic on face-to-face and worksite sales.

•The increase in reinsurance was due to continued growth in the portfolio reflecting the impact of new treaties bound in the current quarter and in 2021, as well as favorable premium adjustments.

•International life operations declined, as new business in Asia was offset by a decline Latin America.

For additional information on net premiums written, refer to the segment results discussions.

Net Premiums Earned

Net premiums earned for short-duration contracts, typically P&C contracts, generally reflect the portion of net premiums written that was recorded as revenues for the period as the exposure periods expire. Net premiums earned for long-duration contracts, typically traditional life contracts, generally are recognized as earned when due from policyholders. For the three months ended March 31, 2022, net premiums earned increased $525 million, or 6.4 percent, comprising 9.9 percent positive growth in commercial lines and 0.2 percent positive growth in consumer lines. Partially offsetting the increase in net premiums earned is the return of premium under the profit-sharing agreement related to the profitable 2021 crop year as described above.

Catastrophe Losses and Prior Period Development

We generally define catastrophe loss events consistent with the definition of the Property Claims Service (PCS) for events in the U.S. and Canada. PCS defines a catastrophe as an event that causes damage of $25 million or more in insured losses and affects a significant number of insureds. For events outside of the U.S. and Canada, we generally use a similar definition. We also define losses from certain pandemics, such as COVID-19, as a catastrophe loss.

Prior period development includes adjustments relating to either profit commission reserves or policyholder dividend reserves based on actual claim experience that develops after the policy period ends. The expense adjustments correlate to the prior period loss development on these same policies. Refer to the Non-GAAP Reconciliation section for further information on reinstatement premiums on catastrophe losses and adjustments to prior period development.

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Catastrophe losses	$	333	$	700
Favorable prior period development	$	240	$	192

Catastrophe losses through March 31, 2022 and 2021 were primarily from the following events:

•2022: Australia storms, Colorado wildfires, and other severe weather-related events in the U.S. and internationally.

•2021: Winter storm losses in the U.S. and other severe weather-related events in the U.S. and internationally.

Prior period development (PPD) arises from changes to loss estimates recognized in the current year that relate to loss events that occurred in previous calendar years and excludes the effect of losses from the development of earned premium from previous accident years.

Pre-tax net favorable PPD for the three months ended March 31, 2022 was $240 million, with five percent in long-tail lines, principally from accident years 2018 and prior, and 95 percent in short-tail lines, primarily in A&H, property, and surety lines.

Pre-tax net favorable PPD for the three months ended March 31, 2021 was $192 million, with 19 percent in long-tail lines, principally from accident years 2017 and prior, and 81 percent in short-tail lines, primarily in A&H, surety, and property lines.

Refer to the prior period development discussion in Note 6 to the Consolidated Financial Statements for additional information.

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P&C Combined Ratio

In evaluating our segments excluding Life Insurance financial performance, we use the P&C combined ratio. We calculate this ratio by dividing the respective expense amounts by net premiums earned. We do not calculate this ratio for the Life Insurance segment as we do not use this measure to monitor or manage that segment. A P&C combined ratio under 100 percent indicates underwriting income, and a combined ratio exceeding 100 percent indicates underwriting loss.

	Three Months Ended
	March 31
	2022		2021
Loss and loss expense ratio
CAY loss ratio excluding catastrophe losses	56.3	%	57.2	%
Catastrophe losses	4.1	%	9.1	%
Prior period development	(3.9)	%	(2.6)	%
Loss and loss expense ratio	56.5	%	63.7	%
Policy acquisition cost ratio	19.3	%	19.5	%
Administrative expense ratio	8.5	%	8.6	%
P&C Combined ratio	84.3	%	91.8	%

The loss and loss expense ratio and the CAY loss ratio excluding catastrophe losses decreased 7.2 percentage points and 0.9 percentage points, respectively, for the three months ended March 31, 2022, reflecting underlying loss ratio improvement, including earned rate exceeding loss cost trends. The loss and loss expense ratio for the three months ended March 31, 2022 also benefited from lower catastrophe losses and higher favorable prior period development.

The policy acquisition cost ratio and administrative expense ratio were relatively flat for the three months ended March 31, 2022.

Policy benefits

Policy benefits represent losses on contracts classified as long-duration and generally include accident and supplemental health products, term and whole life products, endowment products, and annuities. Refer to the Life Insurance segment operating results section for further discussion.

For the three months ended March 31, 2022 and 2021, Policy benefits were $145 million and $167 million, respectively, which included (gains) losses from fair value changes in separate account liabilities that do not qualify for separate account reporting under GAAP of $(31) million and $4 million, respectively. The offsetting movements of these liabilities are recorded in Other (income) expense on the Consolidated statements of operations. Excluding the separate account gains and losses, Policy benefits were $176 million and $163 million for the three months ended March 31, 2022 and 2021, respectively.

Refer to the respective sections that follow for a discussion of Net investment income, Other (income) expense, Net realized gains (losses), Amortization of purchased intangibles, and Income tax expense.

40

Segment Operating Results – Three Months Ended March 31, 2022 and 2021

We operate through six business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. For more information on our segments refer to “Segment Information” under Item 1 in our 2021 Form 10-K.

North America Commercial P&C Insurance

The North America Commercial P&C Insurance segment comprises operations that provide property and casualty (P&C) and accident & health (A&H) insurance and services to large, middle market, and small commercial businesses in the U.S., Canada, and Bermuda. This segment includes our North America Major Accounts and Specialty Insurance division (large corporate accounts and wholesale business), and the North America Commercial Insurance division (principally middle market and small commercial accounts).

	Three Months Ended
	March 31						% Change
(in millions of U.S. dollars, except for percentages)	2022			2021			Q-22 vs. Q-21
Net premiums written	$	4,039		$	3,664		10.2		%
Net premiums earned	4,114			3,674			12.0		%
Losses and loss expenses	2,497			2,560			(2.4)		%
Policy acquisition costs	573			514			11.5		%
Administrative expenses	265			254			4.0		%
Underwriting income	779			346			125.0		%
Net investment income	489			540			(9.4)		%
Other (income) expense	6			2			123.0		%
Segment income	$	1,262		$	884		42.8		%
Loss and loss expense ratio:
CAY loss ratio excluding catastrophe losses	61.5		%	63.4		%	(1.9)	pts
Catastrophe losses	2.0		%	9.9		%	(7.9)	pts
Prior period development	(2.8)		%	(3.6)		%	0.8	pts
Loss and loss expense ratio	60.7		%	69.7		%	(9.0)	pts
Policy acquisition cost ratio	13.9		%	14.0		%	(0.1)	pts
Administrative expense ratio	6.5		%	6.9		%	(0.4)	pts
Combined ratio	81.1		%	90.6		%	(9.5)	pts

Catastrophe Losses and Prior Period Development	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Catastrophe losses	$	81	$	362
Favorable prior period development	$	108	$	127

41

Catastrophe losses through March 31, 2022 and 2021 were primarily from winter storm losses and other severe weather-related events in the U.S.

Refer to the prior period development discussion in Note 6 to the Consolidated Financial Statements for additional information.

Premiums

Net premiums written increased $375 million, or 10.2 percent, for the three months ended March 31, 2022, comprising:

•Commercial lines: Positive growth of 10.5 percent reflecting strong premium retention, including rate and exposure increases, and new business across a number of retail and wholesale lines, including property, financial lines, primary and excess casualty, workers' compensation and commercial multiple peril.

•Consumer lines: Positive growth of 4.4 percent due to recovery in A&H lines from exposure declines in the prior year and strong new business.

Net premiums earned increased $440 million, or 12.0 percent for the three months ended March 31, 2022, reflecting the growth in net premiums written described above.

Combined Ratio

The loss and loss expense ratio and the CAY loss ratio excluding catastrophe losses decreased for the three months ended March 31, 2022, primarily reflecting underlying loss ratio improvement, including earned rate exceeding loss cost trends. The loss and loss expense ratio was also impacted by lower catastrophe losses, partially offset by lower favorable prior period development.

The administrative expense ratio decreased for the three months ended March 31, 2022, primarily due to the favorable impact of growth in net premiums earned, partially offset by higher employee-related benefit expenses.

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North America Personal P&C Insurance

The North America Personal P&C Insurance segment comprises operations that provide high net worth personal lines products, including homeowners and complementary products such as valuable articles, excess liability, automobile, and recreational marine insurance and services in the U.S. and Canada.

	Three Months Ended
	March 31						% Change
(in millions of U.S. dollars, except for percentages)	2022			2021			Q-22 vs. Q-21
Net premiums written	$	1,180		$	1,098		7.4		%
Net premiums earned	1,247			1,184			5.3		%
Losses and loss expenses	713			819			(13.0)		%
Policy acquisition costs	260			247			4.9		%
Administrative expenses	69			60			15.6		%
Underwriting income	205			58			255.4		%
Net investment income	59			65			(8.3)		%
Other (income) expense	1			1			—
Amortization of purchased intangibles	2			3			(5.2)		%
Segment income	$	261		$	119		119.7		%
Loss and loss expense ratio:
CAY loss ratio excluding catastrophe losses	53.3		%	53.2		%	0.1	pts
Catastrophe losses	8.0		%	19.3		%	(11.3)	pts
Prior period development	(4.1)		%	(3.3)		%	(0.8)	pts
Loss and loss expense ratio	57.2		%	69.2		%	(12.0)	pts
Policy acquisition cost ratio	20.8		%	20.9		%	(0.1)	pts
Administrative expense ratio	5.5		%	5.0		%	0.5	pts
Combined ratio	83.5		%	95.1		%	(11.6)	pts

Catastrophe Losses and Prior Period Development	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Catastrophe losses	$	100	$	240
Favorable prior period development	$	51	$	40

Catastrophe losses through March 31, 2022 and 2021 were primarily from the following events:

•2022: Colorado wildfires and severe weather-related events in the U.S.

•2021: Winter storm losses and other severe weather-related events in the U.S.

Refer to the prior period development discussion in Note 6 to the Consolidated Financial Statements for additional information.

Premiums

Net premiums written increased $82 million, or 7.4 percent for the three months ended March 31, 2022, primarily driven by new business and strong renewal retention, from both rate and exposure increases, mainly in homeowners; partially offset by cancellations in parts of California exposed to wildfires. In addition, the prior year included the unfavorable impact of reinstatement premiums related to 2021 winter storm losses and automobile return premiums. This prior year impact and adverse impact of the cancellations noted above, contributed 1.8 percentage points to the year-over-year growth.

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Net premiums earned increased $63 million, or 5.3 percent for the three months ended March 31, 2022, reflecting the growth in net premiums written.

Combined Ratio

The loss and loss expense ratio decreased for the three months ended March 31, 2022, due to lower catastrophe losses and higher favorable prior period development. The CAY loss ratio excluding catastrophe losses increased primarily due to slightly higher losses in automobile, offset by earned rate exceeding loss cost trends in homeowners.

The administrative expense ratio increased for the three months ended March 31, 2022, primarily due to increased spending to support growth and higher employee-related benefit expenses.

North America Agricultural Insurance

The North America Agricultural Insurance segment comprises our North American based businesses that provide a variety of coverages in the U.S. and Canada including crop insurance, primarily Multiple Peril Crop Insurance (MPCI) and crop-hail through Rain and Hail Insurance Service, Inc. (Rain and Hail) as well as farm and ranch and specialty P&C commercial insurance products and services through our Chubb Agribusiness unit.

	Three Months Ended
	March 31						% Change
(in millions of U.S. dollars, except for percentages)	2022			2021			Q-22 vs. Q-21
Net premiums written	$	62		$	183		(65.9)		%
Net premiums earned	(29)			110			NM
Losses and loss expenses	(92)			85			NM
Policy acquisition costs	12			12			—
Administrative expenses	(1)			3			NM
Underwriting income	52			10			NM
Net investment income	7			7			—
Amortization of purchased intangibles	7			7			—
Segment income	$	52		$	10		NM
Loss and loss expense ratio:
CAY loss ratio excluding catastrophe losses	70.6		%	71.2		%	0.6	pts
Catastrophe losses	NM			7.4		%		NM
Prior period development	NM			(1.1)		%		NM
Loss and loss expense ratio	NM			77.5		%		NM
Policy acquisition cost ratio	NM			10.7		%		NM
Administrative expense ratio	NM			2.7		%		NM
Combined ratio	NM			90.9		%		NM

NM - not meaningful

Catastrophe Losses and Prior Period Development	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Catastrophe losses	$	—	$	8
Favorable prior period development	$	26	$	2

Catastrophe losses through March 31, 2021 were primarily from winter storm losses and other severe weather-related events in the U.S. in Chubb Agribusiness.

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Refer to the prior period development discussion in Note 6 to the Consolidated Financial Statements for additional information.

Premiums

Net premiums written decreased $121 million, or 65.9 percent, for the three months ended March 31, 2022, primarily due to $161 million of return of premium to the U.S. government as part of the profit-sharing agreement reflecting the profitable 2021 crop year in our MPCI business. Under the profit-sharing agreement, we return additional premiums to the government because of the lower losses experienced in certain states in 2021. Excluding this return of premium, net premiums written increased 22 percent due mainly to an increase in MPCI, primarily reflecting higher commodity prices and volatility factors, both of which impact pricing, as well as higher reported acreage from policyholders and policy count growth. In addition, our Chubb Agribusiness unit contributed to growth with strong renewal retention, including rate increases, and new business.

Net premiums earned decreased $139 million for the three months ended March 31, 2022, due to the factors described above.

Combined Ratio

The combined ratio for the three months ended March 31, 2022 was impacted by higher favorable prior period development, including the return of premium to the U.S. government under the profit-sharing agreement related to the profitable 2021 crop year described above. This return of premium resulted in a reduction to net premiums earned of $161 million and a corresponding reduction to incurred losses, with no net impact to underwriting income.

The CAY loss and loss expense ratio decreased 0.6 percentage point for the three months ended March 31, 2022, primarily due to the favorable year-over-year impact of the commodity hedge gain of 1.9 percentage points, partially offset by higher premiums earned from MPCI, which have a higher loss ratio.

The CAY policy acquisition cost ratio decreased 0.9 percentage point for the three months ended March 31, 2022, primarily due to higher premiums earned from MPCI, which have a lower acquisition cost ratio.

The CAY administrative expense ratio decreased 3.7 percentage points for the three months ended March 31, 2022, primarily due to higher Administrative and Operating (A&O) reimbursements on the MPCI business, as well as expense management.

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Overseas General Insurance

Overseas General Insurance segment comprises Chubb International and Chubb Global Markets (CGM). Chubb International comprises our international commercial P&C traditional and specialty lines serving large corporations, middle market and small customers; A&H and traditional and specialty personal lines business serving local territories outside the U.S., Bermuda, and Canada. CGM, our London-based international commercial P&C excess and surplus lines business, includes Lloyd's of London (Lloyd's) Syndicate 2488. Chubb provides funds at Lloyd's to support underwriting by Syndicate 2488 which is managed by Chubb Underwriting Agencies Limited.

	Three Months Ended
	March 31						% Change
(in millions of U.S. dollars, except for percentages)	2022			2021			Q-22 vs. Q-21
Net premiums written	$	3,079		$	2,890		6.5		%
Net premiums written - constant dollars							11.9		%
Net premiums earned	2,628			2,478			6.0		%
Losses and loss expenses	1,389			1,263			10.0		%
Policy acquisition costs	679			668			1.6		%
Administrative expenses	269			266			1.2		%
Underwriting income	291			281			3.3		%
Net investment income	147			141			4.2		%
Other (income) expense	2			1			100.0		%
Amortization of purchased intangibles	14			12			10.2		%
Segment income	$	422		$	409		3.2		%
Loss and loss expense ratio:
CAY loss ratio excluding catastrophe losses	49.4		%	49.9		%	(0.5)	pts
Catastrophe losses	5.8		%	2.1		%	3.7	pts
Prior period development	(2.3)		%	(1.0)		%	(1.3)	pts
Loss and loss expense ratio	52.9		%	51.0		%	1.9	pts
Policy acquisition cost ratio	25.8		%	27.0		%	(1.2)	pts
Administrative expense ratio	10.2		%	10.7		%	(0.5)	pts
Combined ratio	88.9		%	88.7		%	0.2	pts

Catastrophe Losses and Prior Period Development

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Catastrophe losses	$	151	$	50
Favorable prior period development	$	60	$	25

Catastrophe losses through March 31, 2022 and 2021 were primarily from the following events:

•2022: Australia storms and international weather-related events.

•2021: Winter storm losses in the U.S. and international weather-related events.

Refer to the prior period development discussion in Note 6 to the Consolidated Financial Statements for additional information.

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Net Premiums Written by Region	Three months ended March 31
(in millions of U.S. dollars, except for percentages)	2022		2022  % of Total		2021		2021 % of Total		C$ 2021		Q-22 vs. Q-21		C$ Q-22 vs. Q-21
Region
Europe, Middle East, and Africa	$	1,654	54	%	$	1,551	54	%	$	1,482	6.6	%	11.6	%
Latin America	605		19	%	537		19	%	512		12.8	%	18.1	%
Asia Pacific ex Japan	668		22	%	637		22	%	605		4.9	%	10.4	%
Japan	115		4	%	124		4	%	113		(7.4)	%	1.6	%
Other (1)	37		1	%	41		1	%	40		(10.7)	%	(7.8)	%
Net premiums written	$	3,079	100	%	$	2,890	100	%	$	2,752	6.5	%	11.9	%

(1)    Includes the international supplemental A&H business of Combined Insurance and other international operations.

Premiums

Net premiums written increased $189 million, or $327 million on a constant-dollar basis, for the three months ended March 31, 2022, reflecting an increase in commercial lines of 8.6 percent, or 13.6 percent on a constant-dollar basis, and growth in consumer lines of 3.0 percent, or 9.0 percent on a constant-dollar basis.

Growth in Europe, Middle East, and Africa for the three months ended March 31, 2022 was primarily driven by higher new business and positive rate increases in commercial lines, including commercial casualty, property, and financial lines. Consumer lines increased primarily due to A&H, reflecting increased travel volume. Additionally, A&H in the prior year was adversely impacted by restrictions resulting from the COVID-19 pandemic.

Latin America increased for the three months ended March 31, 2022 driven by growth in consumer lines, including automobile in personal and travel in A&H. Commercial lines also grew due to exposure increases and new business in commercial lines, primarily property.

Asia Pacific ex Japan increased for the three months ended March 31, 2022 driven by higher new business, higher retention and positive rate increases in commercial lines, including financial lines, property and casualty, and growth in consumer lines, primarily specialty in personal and travel in A&H.

Japan increased for the three months ended March 31, 2022 primarily from new business in A&H.

Net premiums earned increased $150 million, or $261 million on a constant-dollar basis, for the three months ended March 31, 2022, reflecting the increase in net premiums written described above.

Combined Ratio

The loss and loss expense ratio increased for the three months ended March 31, 2022, primarily due to higher catastrophe losses, partially offset by higher favorable prior period development. The CAY loss ratio excluding catastrophe losses decreased for the three months ended March 31, 2022, primarily reflecting underlying loss ratio improvement, including earned rate exceeding loss cost trends.

The policy acquisition cost ratio decreased for the three months ended March 31, 2022, primarily due to a change in the mix of business, including less premiums earned from consumer lines that have a higher acquisition cost ratio and higher premiums earned from commercial lines that have a lower acquisition cost ratio.

The administrative expense ratio decreased for the three months ended March 31, 2022, primarily due to the favorable impact of higher net premiums earned, partially offset by increased investment to support growth.

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Global Reinsurance

The Global Reinsurance segment represents our reinsurance operations comprising Chubb Tempest Re Bermuda, Chubb Tempest Re USA, Chubb Tempest Re International, and Chubb Tempest Re Canada. Global Reinsurance markets its reinsurance products worldwide primarily through reinsurance brokers under the Chubb Tempest Re brand name and provides a broad range of traditional and non-traditional reinsurance coverage to a diverse array of primary P&C companies.

	Three Months Ended
	March 31						% Change
(in millions of U.S. dollars, except for percentages)	2022			2021			Q-22 vs. Q-21
Net premiums written	$	253		$	207		22.0		%
Net premiums written - constant dollars							22.4		%
Net premiums earned	235			180			30.8		%
Losses and loss expenses	115			120			(4.6)		%
Policy acquisition costs	62			45			39.3		%
Administrative expenses	9			8			5.3		%
Underwriting income	49			7			NM
Net investment income	85			70			20.7		%
Segment income	$	134		$	77		74.9		%
Loss and loss expense ratio:
CAY loss ratio excluding catastrophe losses	49.9		%	48.3		%	1.6	pts
Catastrophe losses	0.4		%	23.8		%	(23.4)	pts
Prior period development	(1.5)		%	(5.2)		%	3.7	pts
Loss and loss expense ratio	48.8		%	66.9		%	(18.1)	pts
Policy acquisition cost ratio	26.5		%	24.9		%	1.6	pts
Administrative expense ratio	3.7		%	4.6		%	(0.9)	pts
Combined ratio	79.0		%	96.4		%	(17.4)	pts

NM - not meaningful

Catastrophe Losses and Prior Period Development

	Three Months Ended
	March 31
(in millions of U.S dollars)	2022		2021
Catastrophe losses	$	1	$	40
Favorable prior period development	$	3	$	7

Catastrophe losses through March 31, 2021 were primarily from winter storm losses in the U.S.

Premiums

Net premiums written increased $46 million for the three months ended March 31, 2022, primarily due to continued growth in the portfolio reflecting the impact of new treaties bound in the current quarter and in 2021, as well as favorable premium adjustments.

Net premiums earned increased $55 million for the three months ended March 31, 2022, primarily reflecting the increase in net premiums written described above.

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Combined Ratio

The loss and loss expense ratio decreased for the three months ended March 31, 2022, primarily due to lower catastrophe losses. The CAY loss ratio excluding catastrophe losses increased for the three months ended March 31, 2022, primarily due to a shift in the mix of business.

The policy acquisition cost ratio increased for the three months ended March 31, 2022, primarily due to a shift in the mix of business.

The administrative expense ratio decreased for the three months ended March 31, 2022, primarily from the favorable impact of higher net premiums earned.

Life Insurance

The Life Insurance segment comprises our international life operations, Chubb Tempest Life Re (Chubb Life Re), and the North American supplemental A&H and life business of Combined Insurance. We assess the performance of our life business based on Life Insurance underwriting income, which includes Net investment income and (Gains) losses from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP.

	Three Months Ended
	March 31				% Change
(in millions of U.S. dollars, except for percentages)	2022		2021		Q-22 vs. Q-21
Net premiums written	$	586	$	620	(5.5)	%
Net premiums written - constant dollars					(3.5)	%
Net premiums earned	551		595		(7.5)	%
Losses and loss expenses	154		198		(22.1)	%
Policy benefits	176		163		8.2	%
Policy acquisition costs	151		179		(15.8)	%
Administrative expenses	84		82		2.0	%
Net investment income	103		98		5.1	%
Life Insurance underwriting income	89		71		24.7	%
Other (income) expense	(28)		(34)		(16.9)	%
Amortization of purchased intangibles	2		1		100.0	%
Segment income	$	115	$	104	10.0	%

Premiums

Net premiums written decreased $34 million, or $21 million on a constant-dollar basis for the three months ended March 31, 2022. For our International life operations, net premiums written decreased 4.5 percent as growth in Asia from new business in Taiwan and Vietnam was offset by a decline in Latin America from lower business in Chile. Net premiums written also reflects a decline in our North American Combined Insurance business of 7.4 percent.

Deposits

The following table presents deposits collected on universal life and investment contracts:

	Three Months Ended
	March 31						% Change
(in millions of U.S. dollars, except for percentages)	2022		2021		C$ 2021		Q-22 vs. Q-21		C$ Q-22 vs. Q-21
Deposits collected on universal life and investment contracts	$	557	$	551	$	555	0.9	%	0.3	%

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Deposits collected on universal life and investment contracts (life deposits) are not reflected as revenues in our Consolidated statements of operations in accordance with GAAP. New life deposits are an important component of production, and although they do not significantly affect current period income from operations, they are key to our efforts to grow our business. Life deposits collected increased $6 million for the three months ended March 31, 2022, primarily in Taiwan.

Life Insurance underwriting income and Segment income

Life Insurance underwriting income increased $18 million for the three months ended March 31, 2022, primarily reflecting lower year-over-year COVID-related losses. Segment income increased $11 million for the three months ended March 31, 2022, primarily due to the increase in underwriting income described above, partially offset by lower income from our investment in Huatai, our partially-owned insurance entity in China.

Corporate

Corporate results primarily include the results of our non-insurance companies, income and expenses not attributable to reportable segments and loss and loss expenses of asbestos and environmental (A&E) liabilities and certain other non-A&E run-off exposures, including molestation.

	Three Months Ended
	March 31				% Change
(in millions of U.S. dollars, except for percentages)	2022		2021		Q-22 vs. Q-21
Losses and loss expenses	$	10	$	9	0.1	%
Administrative expenses	83		71		19.6	%
Underwriting loss	93		80		17.4	%
Net investment income (loss)	(5)		(17)		(73.4)	%
Interest expense	132		122		7.4	%
Net realized gains (losses)	100		888		(88.8)	%
Other (income) expense	(259)		(415)		(37.5)	%
Amortization of purchased intangibles	46		49		(7.6)	%
Income tax expense	355		338		5.2	%
Net income (loss)	$	(272)	$	697	NM

NM - not meaningful

Administrative expenses increased $12 million for the three months ended March 31, 2022, primarily due to higher employee-related expenses and increased investment to support growth.

Refer to the respective sections that follow for a discussion of Net realized gains (losses), Net investment income (loss), Amortization of purchased intangibles, and Income tax expense (benefit). Refer to Note 11 to the Consolidated Financial Statements for additional information on Other (income) expense.

Net Realized and Unrealized Gains (Losses)

We take a long-term view with our investment strategy, and our investment managers manage our investment portfolio to maximize total return within specific guidelines designed to minimize risk. The majority of our investment portfolio is available for sale and reported at fair value. Our held to maturity investment portfolio is reported at amortized cost, net of valuation allowance.

The effect of market movements on our fixed maturities portfolio impacts Net income (through Net realized gains (losses)) when securities are sold, when we write down an asset, or when we record a change to the valuation allowance for expected credit losses. For a further discussion related to how we assess the valuation allowance for expected credit losses and the related impact on Net income, refer to Note 1 e) to the Consolidated Financial Statements in our 2021 Form 10-K. Additionally, Net income is impacted through the reporting of changes in the fair value of equity securities, private equity funds where we own less than three percent, and derivatives, including financial futures, options, swaps, and GLB reinsurance. Changes in unrealized appreciation and depreciation on available for sale securities, resulting from the revaluation of securities held, changes in cumulative foreign currency translation adjustment, and unrealized postretirement benefit obligations liability adjustment, are

50

reported as separate components of Accumulated other comprehensive income in Shareholders’ equity in the Consolidated balance sheets.

The following table presents our net realized and unrealized gains (losses):

	Three Months Ended March 31
	2022						2021
(in millions of U.S. dollars)	Net Realized Gains (Losses)		Net Unrealized Gains (Losses)		Net Impact		Net Realized Gains (Losses)		Net Unrealized Gains (Losses)		Net Impact
Fixed maturities	$	(136)	$	(4,652)	$	(4,788)	$	24	$	(2,317)	$	(2,293)
Fixed income and equity derivatives	47		—		47		109		—		109
Public equity
Sales	255		—		255		45		—		45
Mark-to-market	(199)		—		(199)		322		—		322
Private equity (less than 3 percent ownership)
Mark-to-market	55		—		55		38		—		38
Total investment portfolio	22		(4,652)		(4,630)		538		(2,317)		(1,779)
Mark-to-market from variable annuity reinsurance derivative transactions, net of applicable hedges	77		—		77		275		—		275
Other derivatives	1		—		1		(1)		—		(1)
Foreign exchange	75		67		142		76		22		98
Other (1)	(74)		19		(55)		(1)		(28)		(29)
Net gains (losses), pre-tax	$	101	$	(4,566)	$	(4,465)	$	887	$	(2,323)	$	(1,436)

(1)     Other realized losses include impairment of assets related to Chubb's Russian entities.

Pre-tax net losses of $4,630 million in our investment portfolio for the three months ended March 31, 2022 were principally the result of an increase in interest rates.

The variable annuity reinsurance derivative transactions consist of changes in the fair value of GLB liabilities and gains or losses on other derivative instruments we maintain that decrease in fair value when the S&P 500 index increases. The variable annuity reinsurance derivative transactions resulted in realized gains of $77 million for the three months ended March 31, 2022, reflecting a net gain of $35 million, primarily from a decrease in the fair value of the GLB liabilities due to higher interest rates, partially offset by lower global equity markets, and a net realized gain of $42 million related to these derivative instruments.

For the three months ended March 31, 2021, the variable annuity reinsurance derivative transactions resulted in realized gains of $275 million, reflecting a net decrease in the fair value of the GLB liabilities of $319 million due to higher interest rates and higher global equity markets, partially offset by a net realized loss of $44 million related to these derivative instruments.

Effective Income Tax Rate

Our effective tax rate (ETR) for the three months ended March 31, 2022 was 15.2 percent compared to 12.8 percent in the prior year period. Our ETR reflects a mix of income or losses in jurisdictions with a wide range of tax rates, permanent differences between GAAP and local tax laws, and the impact of discrete items. The ETR in the current year period was impacted by our mix of earnings among various jurisdictions and discrete tax benefits.

Non-GAAP Reconciliation

In presenting our results, we included and discussed certain non-GAAP measures. These non-GAAP measures, which may be defined differently by other companies, are important for an understanding of our overall results of operations and financial condition. However, they should not be viewed as a substitute for measures determined in accordance with GAAP.

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Book value per common share is shareholders’ equity divided by the shares outstanding. Tangible book value per common share is shareholders’ equity less goodwill and other intangible assets, net of tax, divided by the shares outstanding. We believe that book value comparisons to less acquisitive peer companies are more meaningful when adjusted for goodwill and other intangible assets. The calculation of tangible book value per share does not consider the embedded goodwill attributable to our investments in partially-owned insurance companies until we consolidate.

We provide financial measures, including net premiums written, net premiums earned, and underwriting income on a constant-dollar basis. We believe it is useful to evaluate the trends in our results exclusive of the effect of fluctuations in exchange rates between the U.S. dollar and the currencies in which our international business is transacted, as these exchange rates could fluctuate significantly between periods and distort the analysis of trends. The impact is determined by assuming constant foreign exchange rates between periods by translating prior period results using the same local currency exchange rates as the comparable current period.

P&C performance metrics comprise consolidated operating results (including Corporate) and exclude the operating results of the Life Insurance segment. We believe that these measures are useful and meaningful to investors as they are used by management to assess the company’s P&C operations which are the most economically similar. We exclude the Life Insurance segment because the results of this business do not always correlate with the results of our P&C operations.

P&C combined ratio is the sum of the loss and loss expense ratio, policy acquisition cost ratio and the administrative expense ratio excluding the life business and including the realized gains and losses on the crop derivatives. These derivatives were purchased to provide economic benefit, in a manner similar to reinsurance protection, in the event that a significant decline in commodity pricing impacts underwriting results. We view gains and losses on these derivatives as part of the results of our underwriting operations.

CAY P&C combined ratio excluding catastrophe losses (CATs) excludes CATs and prior period development (PPD) from the P&C combined ratio. We exclude CATs as they are not predictable as to timing and amount and PPD as these unexpected loss developments on historical reserves are not indicative of our current underwriting performance. The combined ratio numerator is adjusted to exclude CATs, net premiums earned adjustments on PPD, prior period expense adjustments and reinstatement premiums on PPD, and the denominator is adjusted to exclude net premiums earned adjustments on PPD and reinstatement premiums on CATs and PPD. In periods where there are adjustments on loss sensitive policies, these adjustments are excluded from PPD and net premiums earned when calculating the ratios. We believe this measure provides a better evaluation of our underwriting performance and enhances the understanding of the trends in our P&C business that may be obscured by these items. This measure is commonly reported among our peer companies and allows for a better comparison.

Reinstatement premiums are additional premiums paid on certain reinsurance agreements in order to reinstate coverage that had been exhausted by loss occurrences. The reinstatement premium amount is typically a pro rata portion of the original ceded premium paid based on how much of the reinsurance limit had been exhausted.

Net premiums earned adjustments within PPD are adjustments to the initial premium earned on retrospectively rated policies based on actual claim experience that develops after the policy period ends. The premium adjustments correlate to the prior period loss development on these same policies and are fully earned in the period the adjustments are recorded.

Prior period expense adjustments typically relate to adjustable commission reserves or policyholder dividend reserves based on actual claim experience that develops after the policy period ends. The expense adjustments correlate to the prior period loss development on these same policies.

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The following tables present the calculation of combined ratio, as reported for each segment to P&C combined ratio, adjusted for CATs and PPD:

		North America Commercial P&C Insurance			North America Personal P&C Insurance			North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Corporate		Total P&C
Three Months Ended
March 31, 2022
(in millions of U.S. dollars except for ratios)
Numerator
Losses and loss expenses	A	$	2,497		$	713		$	(92)		$	1,389		$	115		$	10	$	4,632
Catastrophe losses and related adjustments
Catastrophe losses, net of related adjustments		(81)			(100)			—			(151)			(1)			—		(333)
Reinstatement premiums collected (expensed) on catastrophe losses		—			—			—			—			—			—		—
Catastrophe losses, gross of related adjustments		(81)			(100)			—			(151)			(1)			—		(333)
PPD and related adjustments
PPD, net of related adjustments - favorable (unfavorable)		108			51			26			60			3			(8)		240
Net premiums earned adjustments on PPD - unfavorable (favorable)		—			—			159			—			—			—		159
Expense adjustments - unfavorable (favorable)		6			—			(1)			—			—			—		5
PPD reinstatement premiums - unfavorable (favorable)		—			—			—			—			1			—		1
PPD, gross of related adjustments - favorable (unfavorable)		114			51			184			60			4			(8)		405
CAY loss and loss expense ex CATs	B	$	2,530		$	664		$	92		$	1,298		$	118		$	2	$	4,704
Policy acquisition costs and administrative expenses
Policy acquisition costs and administrative expenses	C	$	838		$	329		$	11		$	948		$	71		$	83	$	2,280
Expense adjustments - favorable (unfavorable)		(6)			—			1			—			—			—		(5)
Policy acquisition costs and administrative expenses, adjusted	D	$	832		$	329		$	12		$	948		$	71		$	83	$	2,275
Denominator
Net premiums earned	E	$	4,114		$	1,247		$	(29)		$	2,628		$	235				$	8,195
Net premiums earned adjustments on PPD - unfavorable (favorable)		—			—			159			—			—					159
PPD reinstatement premiums - unfavorable (favorable)		—			—			—			—			1					1
Net premiums earned excluding adjustments	F	$	4,114		$	1,247		$	130		$	2,628		$	236				$	8,355
P&C Combined ratio
Loss and loss expense ratio	A/E	60.7		%	57.2		%	318.4		%	52.9		%	48.8		%			56.5		%
Policy acquisition cost and administrative expense ratio	C/E	20.4		%	26.3		%	(36.8)		%	36.0		%	30.2		%			27.8		%
P&C Combined ratio		81.1		%	83.5		%	281.6		%	88.9		%	79.0		%			84.3		%
CAY P&C Combined ratio ex CATs
Loss and loss expense ratio, adjusted	B/F	61.5		%	53.3		%	70.6		%	49.4		%	49.9		%			56.3		%
Policy acquisition cost and administrative expense ratio, adjusted	D/F	20.2		%	26.3		%	8.9		%	36.1		%	30.0		%			27.2		%
CAY P&C Combined ratio ex CATs		81.7		%	79.6		%	79.5		%	85.5		%	79.9		%			83.5		%
Combined ratio
Combined ratio																			84.3		%
Add: impact of gains and losses on crop derivatives																			—
P&C Combined ratio																			84.3		%
Note: The ratios above are calculated using whole U.S. dollars. Accordingly, calculations using rounded amounts may differ. Letters A, B, C, D, E, and F included in the table are references for calculating the ratios above.

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		North America Commercial P&C Insurance			North America Personal P&C Insurance			North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Corporate		Total P&C
Three Months Ended
March 31, 2021
(in millions of U.S. dollars except for ratios)
Numerator
Losses and loss expenses	A	$	2,560		$	819		$	85		$	1,263		$	120		$	9	$	4,856
Catastrophe losses and related adjustments
Catastrophe losses, net of related adjustments		(362)			(240)			(8)			(50)			(40)			—		(700)
Reinstatement premiums collected (expensed) on catastrophe losses		—			(23)			—			—			5			—		(18)
Catastrophe losses, gross of related adjustments		(362)			(217)			(8)			(50)			(45)			—		(682)
PPD and related adjustments
PPD, net of related adjustments - favorable (unfavorable)		127			40			2			25			7			(9)		192
Net premiums earned adjustments on PPD - unfavorable (favorable)		—			—			(2)			—			—			—		(2)
Expense adjustments - unfavorable (favorable)		3			—			—			—			—			—		3
PPD reinstatement premiums - unfavorable (favorable)		—			—			—			—			3			—		3
PPD, gross of related adjustments - favorable (unfavorable)		130			40			—			25			10			(9)		196
CAY loss and loss expense ex CATs	B	$	2,328		$	642		$	77		$	1,238		$	85		$	—	$	4,370
Policy acquisition costs and administrative expenses
Policy acquisition costs and administrative expenses	C	$	768		$	307		$	15		$	934		$	53		$	71	$	2,148
Expense adjustments - favorable (unfavorable)		(3)			—			—			—			—			—		(3)
Policy acquisition costs and administrative expenses, adjusted	D	$	765		$	307		$	15		$	934		$	53		$	71	$	2,145
Denominator
Net premiums earned	E	$	3,674		$	1,184		$	110		$	2,478		$	180				$	7,626
Reinstatement premiums (collected) expensed on catastrophe losses		—			23			—			—			(5)					18
Net premiums earned adjustments on PPD - unfavorable (favorable)		—			—			(2)			—			—					(2)
PPD reinstatement premiums - unfavorable (favorable)		—			—			—			—			3					3
Net premiums earned excluding adjustments	F	$	3,674		$	1,207		$	108		$	2,478		$	178				$	7,645
P&C Combined ratio
Loss and loss expense ratio	A/E	69.7		%	69.2		%	77.5		%	51.0		%	66.9		%			63.7		%
Policy acquisition cost and administrative expense ratio	C/E	20.9		%	25.9		%	13.4		%	37.7		%	29.5		%			28.1		%
P&C Combined ratio		90.6		%	95.1		%	90.9		%	88.7		%	96.4		%			91.8		%
CAY P&C Combined ratio ex CATs
Loss and loss expense ratio, adjusted	B/F	63.4		%	53.2		%	71.2		%	49.9		%	48.3		%			57.2		%
Policy acquisition cost and administrative expense ratio, adjusted	D/F	20.8		%	25.4		%	13.5		%	37.7		%	29.7		%			28.0		%
CAY P&C Combined ratio ex CATs		84.2		%	78.6		%	84.7		%	87.6		%	78.0		%			85.2		%
Combined ratio
Combined ratio																			91.8		%
Add: impact of gains and losses on crop derivatives																			—
P&C Combined ratio																			91.8		%
Note: The ratios above are calculated using whole U.S. dollars. Accordingly, calculations using rounded amounts may differ. Letters A, B, C, D, E, and F included in the table are references for calculating the ratios above.

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Amortization of Purchased Intangibles and Other Amortization

Amortization expense related to purchased intangibles was $71 million and $72 million for the three months ended March 31, 2022 and 2021, respectively, and principally relates to the Chubb Corp acquisition.

The following table presents, as of March 31, 2022, the estimated pre-tax amortization expense (benefit) of purchased intangibles, at current foreign currency exchange rates, for the second through fourth quarters of 2022 and for the next five years:

	Associated with the Chubb Corp Acquisition
For the Years Ending December 31 (in millions of U.S. dollars)	Agency distribution relationships and renewal rights		Fair value adjustment on Unpaid losses and loss expenses		Total (1)		Other intangible assets (2)		Total Amortization of purchased intangibles
Second quarter of 2022	$	49	$	(4)	$	45	$	25	$	70
Third quarter of 2022	49		(4)		45		25		70
Fourth quarter of 2022	49		(4)		45		25		70
2023	178		(7)		171		96		267
2024	160		(5)		155		90		245
2025	144		(6)		138		89		227
2026	130		(6)		124		86		210
2027	117		(7)		110		83		193
Total	$	876	$	(43)	$	833	$	519	$	1,352

(1)Recorded in Corporate.

(2)Recorded in applicable segment(s) that acquired the intangible assets.

Reduction of deferred tax liability associated with Other intangible assets

At March 31, 2022, the deferred tax liability associated with Other intangible assets (excluding the fair value adjustment on Unpaid losses and loss expense) was $1,200 million.

The following table presents as of March 31, 2022, the expected reduction to the deferred tax liability associated with the amortization of Other intangible assets, at current foreign currency exchange rates, for the second through fourth quarters of 2022 and for the next five years:

For the Years Ending December 31 (in millions of U.S. dollars)	Reduction to deferred tax liability associated with intangible assets
Second quarter of 2022	$	16
Third quarter of 2022	16
Fourth quarter of 2022	17
2023	61
2024	55
2025	52
2026	48
2027	44
Total	$	309

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Amortization of the fair value adjustment on acquired invested assets and assumed long-term debt

The following table presents at March 31, 2022, the expected amortization expense of the fair value adjustment on acquired invested assets related to the Chubb Corp acquisition, at current foreign currency exchange rates, and the expected amortization benefit from the fair value adjustment on assumed long-term debt for the second through fourth quarters of 2022 and for the next five years:

	Amortization (expense) benefit of the fair value adjustment on
For the Years Ending December 31 (in millions of U.S. dollars)	Acquired invested assets (1)		Assumed long-term debt (2)
Second quarter of 2022	$	(19)	$	5
Third quarter of 2022	(17)		5
Fourth quarter of 2022	(16)		6
2023	(50)		21
2024	(9)		21
2025	—		21
2026	—		21
2027	—		21
Total	$	(111)	$	121

(1)Recorded as a reduction to Net investment income in the Consolidated statements of operations.

(2)Recorded as a reduction to Interest expense in the Consolidated statements of operations.

The estimate of amortization expense of the fair value adjustment on acquired invested assets could vary based on current market conditions, bond calls, overall duration of the acquired investment portfolio, and foreign exchange.

Net Investment Income

	Three Months Ended March 31
(in millions of U.S. dollars)	2022		2021
Fixed maturities (1)	$	799	$	840
Short-term investments	9		9
Other interest income	3		2
Equity securities	38		36
Other investments	19		23
Gross investment income (1)	868		910
Investment expenses	(46)		(47)
Net investment income (1)	$	822	$	863
(1) Includes amortization expense related to fair value adjustment of acquired invested assets       related to the Chubb Corp acquisition	$	(16)	$	(26)

Net investment income is influenced by a number of factors including the amounts and timing of inward and outward cash flows, the level of interest rates, and changes in overall asset allocation. Net investment income decreased 4.8 percent for the three months ended March 31, 2022, primarily due to lower reinvestment rates on new and reinvested fixed maturities.

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For private equities where we own less than three percent, investment income is included within Net investment income in the table above. For private equities where we own more than three percent, investment income is included within Other income (expense) in the Consolidated statements of operations. Excluded from Net investment income is the mark-to-market movement for private equities, which is recorded within either Other income (expense) or Net realized gains (losses) based on our percentage of ownership. The total mark-to-market movement for private equities excluded from Net investment income was as follows:

	Three Months Ended March 31
(in millions of U.S. dollars)	2022		2021
Total mark-to-market gain on private equity, pre-tax	$	310	$	438

Investments

Our investment portfolio is invested primarily in publicly traded, investment grade, fixed income securities with an average credit quality of A/A as rated by the independent investment rating services Standard and Poor’s (S&P)/Moody’s Investors Service (Moody’s) at March 31, 2022. The portfolio is externally managed by independent, professional investment managers and is broadly diversified across geographies, sectors, and issuers. Other investments principally comprise direct investments, investment funds, and limited partnerships. We hold no collateralized debt obligations in our investment portfolio, and we provide no credit default protection. We have long-standing global credit limits for our entire portfolio across the organization. Exposures are aggregated, monitored, and actively managed by our Global Credit Committee, comprising senior executives, including our Chief Financial Officer, our Chief Risk Officer, our Chief Investment Officer, and our Treasurer. We also have well-established, strict contractual investment rules requiring managers to maintain highly diversified exposures to individual issuers and closely monitor investment manager compliance with portfolio guidelines.

The average duration of our fixed income securities, including the effect of options and swaps, was 4.2 years and 4.1 years at March 31, 2022 and December 31, 2021, respectively. We estimate that a 100 basis point (bps) increase in interest rates would reduce the valuation of our fixed income portfolio by approximately $4.3 billion at March 31, 2022. The following table shows the fair value and cost/amortized cost, net of valuation allowance, of our invested assets:

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars)	Fair Value		Cost/ Amortized Cost, Net		Fair Value		Cost/ Amortized Cost, Net
Fixed maturities available for sale	$	89,479	$	91,499	$	93,108	$	90,479
Fixed maturities held to maturity	9,888		9,818		10,647		10,118
Short-term investments	3,407		3,408		3,146		3,147
Fixed income securities	102,774		104,725		106,901		103,744
Equity securities	3,596		3,596		4,782		4,782
Other investments	11,947		11,947		11,169		11,169
Total investments	$	118,317	$	120,268	$	122,852	$	119,695

The fair value of our total investments decreased $4.5 billion during the three months ended March 31, 2022 due to unrealized losses on fixed maturities and share repurchases, partially offset by strong operating cash flows.

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The following tables present the fair value of our fixed income securities at March 31, 2022 and December 31, 2021. The first table lists investments according to type and second according to S&P credit rating:

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars, except for percentages)	Fair Value		% of Total		Fair Value		% of Total
U.S. Treasury / Agency	$	3,276	3	%	$	3,458	3	%
Corporate and asset-backed securities	39,604		39	%	41,264		39	%
Mortgage-backed securities	21,489		21	%	22,292		21	%
Municipal	9,023		9	%	9,650		9	%
Non-U.S.	25,975		25	%	27,091		25	%
Short-term investments	3,407		3	%	3,146		3	%
Total	$	102,774	100	%	$	106,901	100	%
AAA	$	15,029	15	%	$	15,364	14	%
AA	33,592		33	%	35,179		33	%
A	18,821		18	%	20,171		19	%
BBB	16,820		16	%	17,362		16	%
BB	9,065		9	%	9,084		8	%
B	8,983		9	%	9,202		9	%
Other	464		—	%	539		1	%
Total	$	102,774	100	%	$	106,901	100	%

Corporate and asset-backed securities

The following table presents our 10 largest global exposures to corporate bonds by fair value at March 31, 2022: 

(in millions of U.S. dollars)	Fair Value
Bank of America Corp	$	650
JP Morgan Chase & Co	571
Wells Fargo & Co	527
AT&T Inc	488
Comcast Corp	453
Verizon Communications Inc	451
Morgan Stanley	436
Citigroup Inc	384
Goldman Sachs Group Inc	365
Anheuser-Busch InBev SA/NV	315

Mortgage-backed securities

The following table shows the fair value and amortized cost, net of valuation allowance, of our mortgage-backed securities:

	S&P Credit Rating										Fair  Value		Amortized Cost, Net
March 31, 2022 (in millions of U.S. dollars)	AAA		AA		A		BBB		BB and below		Total		Total
Agency residential mortgage-backed securities (RMBS)	$	85	$	17,567	$	—	$	—	$	—	$	17,652	$	18,270
Non-agency RMBS	429		44		62		45		5		585		615
Commercial mortgage-backed securities	2,810		263		164		11		4		3,252		3,315
Total mortgage-backed securities	$	3,324	$	17,874	$	226	$	56	$	9	$	21,489	$	22,200

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Municipal

As part of our overall investment strategy, we may invest in states, municipalities, and other political subdivisions fixed maturity securities (Municipal). We apply the same investment selection process described previously to our Municipal investments. The portfolio is highly diversified primarily in state general obligation bonds and essential service revenue bonds including education and utilities (water, power, and sewers).

Non-U.S.

Our exposure to the Euro results primarily from Chubb European Group SE which is headquartered in France and offers a broad range of coverages throughout the European Union, Central, and Eastern Europe. Chubb primarily invests in Euro denominated investments to support its local currency insurance obligations and required capital levels. Chubb’s local currency investment portfolios have strict contractual investment guidelines requiring managers to maintain a high quality and diversified portfolio to both sector and individual issuers. Investment portfolios are monitored daily to ensure investment manager compliance with portfolio guidelines.

Our non-U.S. investment grade fixed income portfolios are currency-matched with the insurance liabilities of our non-U.S. operations. The average credit quality of our non-U.S. fixed income securities is A and 45 percent of our holdings are rated AAA or guaranteed by governments or quasi-government agencies. Within the context of these investment portfolios, our government and corporate bond holdings are highly diversified across industries and geographies. Issuer limits are based on credit rating (AA—two percent, A—one percent, BBB—0.5 percent of the total portfolio) and are monitored daily via an internal compliance system. We manage our indirect exposure using the same credit rating based investment approach. Accordingly, we do not believe our indirect exposure is material.

The following table summarizes the fair value and amortized cost, net of valuation allowance, of our non-U.S. fixed income portfolio by country/sovereign for non-U.S. government securities at March 31, 2022: 

(in millions of U.S. dollars)	Fair Value		Amortized Cost, Net
Canada	$	957	$	995
Republic of Korea	903		895
Province of Ontario	633		654
Federative Republic of Brazil	586		598
United Mexican States	571		595
Kingdom of Thailand	510		498
United Kingdom	487		497
Socialist Republic of Vietnam	470		343
Commonwealth of Australia	455		486
Province of Quebec	395		405
Other Non-U.S. Government Securities	5,079		5,196
Total	$	11,046	$	11,162

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The following table summarizes the fair value and amortized cost, net of valuation allowance, of our non-U.S. fixed income portfolio by country/sovereign for non-U.S. corporate securities at March 31, 2022:

(in millions of U.S. dollars)	Fair Value		Amortized Cost, Net
United Kingdom	$	2,337	$	2,388
Canada	1,860		1,909
United States (1)	1,254		1,284
France	1,220		1,244
Australia	961		993
Japan	763		787
Germany	578		594
Switzerland	552		566
Netherlands	527		530
China	394		408
Other Non-U.S. Corporate Securities	4,483		4,603
Total	$	14,929	$	15,306

(1)     The countries that are listed in the non-U.S. corporate fixed income portfolio above represent the ultimate parent company's country of risk. Non-U.S. corporate securities could be issued by foreign subsidiaries of U.S. corporations.

Below-investment grade corporate fixed income portfolio

Below-investment grade securities have different characteristics than investment grade corporate debt securities. Risk of loss from default by the borrower is greater with below-investment grade securities. Below-investment grade securities are generally unsecured and are often subordinated to other creditors of the issuer. Also, issuers of below-investment grade securities usually have higher levels of debt and are more sensitive to adverse economic conditions, such as recession or increasing interest rates, than investment grade issuers. At March 31, 2022, our corporate fixed income investment portfolio included below-investment grade and non-rated securities which, in total, comprised approximately 16 percent of our fixed income portfolio. Our below-investment grade and non-rated portfolio includes 1,700 issuers, with the greatest single exposure being $143 million.

We manage high-yield bonds as a distinct and separate asset class from investment grade bonds. The allocation to high-yield bonds is explicitly set by internal management and is targeted to securities in the upper tier of credit quality (BB/B). Our minimum rating for initial purchase is BB/B. Fourteen external investment managers are responsible for high-yield security selection and portfolio construction. Our high-yield managers have a conservative approach to credit selection and very low historical default experience. Holdings are highly diversified across industries and generally subject to a 1.5 percent issuer limit as a percentage of high-yield allocation. We monitor position limits daily through an internal compliance system. Derivative and structured securities (e.g., credit default swaps and collateralized debt obligations) are not permitted in the high-yield portfolio.

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Critical Accounting Estimates

As of March 31, 2022, there were no material changes to our critical accounting estimates. For a full discussion of our critical accounting estimates, refer to Item 7 in our 2021 Form 10-K.

Unpaid losses and loss expenses

As an insurance and reinsurance company, we are required by applicable laws and regulations and GAAP to establish loss and loss expense reserves for the estimated unpaid portion of the ultimate liability for losses and loss expenses under the terms of our policies and agreements with our insured and reinsured customers. With the exception of certain structured settlements, for which the timing and amount of future claim payments are reliably determinable, and certain reserves for unsettled claims, our loss reserves are not discounted for the time value of money.

The following table presents a roll-forward of our unpaid losses and loss expenses: 

(in millions of U.S. dollars)	Gross Losses		Reinsurance Recoverable (1)		Net Losses
Balance at December 31, 2021	$	72,943	$	16,184	$	56,759
Losses and loss expenses incurred	6,260		1,473		4,787
Losses and loss expenses paid	(5,308)		(947)		(4,361)
Other (including foreign exchange translation)	(51)		(64)		13
Balance at March 31, 2022	$	73,844	$	16,646	$	57,198

(1)Net of valuation allowance for uncollectible reinsurance.

The estimate of the liabilities includes provisions for claims that have been reported but are unpaid at the balance sheet date (case reserves) and for obligations on claims that have been incurred but not reported (IBNR) at the balance sheet date. IBNR may also include provisions to account for the possibility that reported claims may settle for amounts that differ from the established case reserves. Loss reserves also include an estimate of expenses associated with processing and settling unpaid claims (loss expenses).

Refer to Note 6 to the Consolidated Financial Statements for a discussion on the changes in the loss reserves.

Asbestos and Environmental (A&E)

There was no significant A&E reserve activity during the three months ended March 31, 2022. A&E reserves are included in Corporate. Refer to our 2021 Form 10-K for further information on our A&E exposures.

Fair value measurements

Accounting guidance defines fair value as the price to sell an asset or transfer a liability (an exit price) in an orderly transaction between market participants and establishes a three-level valuation hierarchy based on the reliability of the inputs. The fair value hierarchy gives the highest priority to quoted prices in active markets (Level 1 inputs) and the lowest priority to unobservable data (Level 3 inputs). Level 2 includes inputs, other than quoted prices within Level 1, that are observable for assets or liabilities either directly or indirectly. Refer to Note 4 to the Consolidated Financial Statements for information on our fair value measurements.

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Catastrophe Management

We actively monitor and manage our catastrophe risk accumulation around the world from natural perils, including setting risk limits based on probable maximum loss (PML), and purchasing catastrophe reinsurance, to ensure sufficient liquidity and capital to meet the expectations of regulators, rating agencies and policyholders, and to provide shareholders with an appropriate risk-adjusted return. Chubb uses internal and external data together with sophisticated analytical, catastrophe loss and risk modeling techniques to ensure an appropriate understanding of risk, including diversification and correlation effects, across different product lines and territories. The table below presents our modeled pre-tax estimates of natural catastrophe PML, net of reinsurance, at March 31, 2022, and does not represent our expected catastrophe losses for any one year.

	Modeled Net Probable Maximum Loss (PML) Pre-tax
	Worldwide (1)				U.S. Hurricane (2)				California Earthquake (3)
	Annual Aggregate				Annual Aggregate				Single Occurrence
(in millions of U.S. dollars, except for percentages)	Chubb		% of Total Shareholders’ Equity		Chubb		% of Total Shareholders’ Equity		Chubb		% of Total Shareholders’ Equity
1-in-10	$	2,160	3.8	%	$	1,117	2.0	%	$	142	0.3	%
1-in-100	$	4,513	8.0	%	$	2,889	5.1	%	$	1,303	2.3	%
1-in-250	$	7,417	13.1	%	$	5,393	9.5	%	$	1,487	2.6	%

(1)    Worldwide aggregate is comprised of losses arising from tropical cyclones, convective storms, earthquakes, U.S. wildfires and inland floods, and excludes "non-modeled" perils such as man-made and other catastrophe risks including pandemic.

(2)    U.S. hurricane losses include losses from wind and storm-surge and exclude rainfall.

(3)    California earthquakes include the fire-following sub-peril.

The PML for worldwide and key U.S. peril regions are based on our in-force portfolio at January 1, 2022, and reflect the April 1, 2022 reinsurance program (see Global Property Catastrophe Reinsurance Program section) as well as inuring reinsurance protection coverages. These estimates assume that reinsurance recoverable is fully collectible.

According to the model, for the 1-in-100 return period scenario, there is a one percent chance that our pre-tax annual aggregate losses incurred in any year from U.S. hurricane events could be in excess of $2,889 million (or 5.1 percent of our total shareholders’ equity at March 31, 2022). Effective December 31, 2021, our worldwide PMLs include losses from U.S. wildfire and U.S. inland flood.

The above estimates of Chubb’s loss profile are inherently uncertain for many reasons, including the following:

•While the use of third-party modeling packages to simulate potential catastrophe losses is prevalent within the insurance industry, the models are reliant upon significant meteorology, seismology, and engineering assumptions to estimate catastrophe losses. In particular, modeled catastrophe events are not always a representation of actual events and ensuing additional loss potential;

•There is no universal standard in the preparation of insured data for use in the models, the running of the modeling software and interpretation of loss output. These loss estimates do not represent our potential maximum exposures and it is highly likely that our actual incurred losses would vary materially from the modeled estimates;

•The potential effects of climate change add to modeling complexity; and

•Changing climate conditions could impact our exposure to natural catastrophe risks. Published studies by leading government, academic and professional organizations combined with extensive research by Chubb climate scientists reveal the potential for increases in the frequency and severity of key natural perils such as tropical cyclones, inland flood, and wildfire. To understand the potential impacts on the Chubb portfolio, we have conducted stress tests on our peak exposure zone, namely in the U.S., using parameters outlined by the Intergovernmental Panel on Climate Change (IPCC) Climate Change 2021 report. These parameters consider the impacts of climate change and the resulting climate peril impacts over a timescale relevant to our business. The tests are conducted by adjusting our baseline view of risk for the perils of hurricane, inland flood, and wildfire in the U.S. to reflect increases in frequency and severity across the modeled domains for each of these perils. Based on these tests against the Chubb portfolio we do not expect material impacts to our baseline PMLs from climate change through December 31, 2022. These tests reflect current exposures only and exclude potentially mitigating factors such as changes to building codes, public or private risk mitigation, regulation and public policy.

Refer to Item 7 in our 2021 Form 10-K for more information on man-made and other catastrophes.

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Global Property Catastrophe Reinsurance Program

Chubb’s core property catastrophe reinsurance program provides protection against natural catastrophes impacting its primary property operations (i.e., excluding our Global Reinsurance and Life Insurance segments).

We regularly review our reinsurance protection and corresponding property catastrophe exposures. This may or may not lead to the purchase of additional reinsurance prior to a program’s renewal date. In addition, prior to each renewal date, we consider how much, if any, coverage we intend to buy and we may make material changes to the current structure in light of various factors, including modeled PML assessment at various return periods, reinsurance pricing, our risk tolerance and exposures, and various other structuring considerations.

Chubb renewed its Global Property Catastrophe Reinsurance Program for our North American and International operations effective April 1, 2022, through March 31, 2023, with no material changes in coverage from the expiring program. The program consists of three layers in excess of losses retained by Chubb on a per occurrence basis. In addition, Chubb renewed its terrorism coverage (excluding nuclear, biological, chemical and radiation coverage, with an inclusion of coverage for biological and chemical coverage for personal lines) for the United States from April 1, 2022, through March 31, 2023 with the same limits and retention and percentage placed except that the majority of terrorism coverage is on an aggregate basis above our retentions without a reinstatement.

Loss Location	Layer of Loss	Comments	Notes
United States (excluding Alaska and Hawaii)	$0 million – $1.0 billion	Losses retained by Chubb	(a)
United States (excluding Alaska and Hawaii)	$1.0 billion – $1.15 billion	All natural perils and terrorism	(b)
United States (excluding Alaska and Hawaii)	$1.15 billion – $2.25 billion	All natural perils and terrorism	(c)
United States (excluding Alaska and Hawaii)	$2.25 billion – $3.5 billion	All natural perils and terrorism	(d)
International (including Alaska and Hawaii)	$0 million – $175 million	Losses retained by Chubb	(a)
International (including Alaska and Hawaii)	$175 million – $1.275 billion	All natural perils and terrorism	(c)
Alaska, Hawaii, and Canada	$1.275 billion – $2.525 billion	All natural perils and terrorism	(d)

(a)    Ultimate retention will depend upon the nature of the loss and the interplay between the underlying per risk programs and certain other catastrophe programs purchased by individual business units. These other catastrophe programs have the potential to reduce our effective retention below the stated levels.

(b)    These coverages are partially placed with Reinsurers.

(c)    These coverages are both part of the same Second layer within the Global Property Catastrophe Reinsurance Program and are fully placed with Reinsurers.

(d)    These coverages are both part of the same Third layer within the Global Property Catastrophe Reinsurance Program and are fully placed with Reinsurers.

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Liquidity

We anticipate that positive cash flows from operations (underwriting activities and investment income) should be sufficient to cover cash outflows under most loss scenarios for the near term. In addition to cash from operations, routine sales of investments, and financing arrangements, we have agreements with a third-party bank provider which implemented two international multi-currency notional cash pooling programs to enhance cash management efficiency during periods of short-term timing mismatches between expected inflows and outflows of cash by currency. The programs allow us to optimize investment income by avoiding portfolio disruption. Should the need arise, we generally have access to capital markets and to credit facilities with letter of credit capacity of $3.7 billion with a sub-limit of $1.9 billion for revolving credit. At March 31, 2022, our usage under these facilities was $1.3 billion in letters of credit. Our access to credit under these facilities is dependent on the ability of the banks that are a party to the facilities to meet their funding commitments. The facilities require that we maintain certain financial covenants, all of which we met at March 31, 2022. Should the existing credit providers on these facilities experience financial difficulty, we may be required to replace credit sources, possibly in a difficult market. If we cannot obtain adequate capital or sources of credit on favorable terms, on a timely basis, or at all, our business, operating results, and financial condition could be adversely affected. To date, we have not experienced difficulty accessing our credit facilities.

The payment of dividends or other statutorily permissible distributions from our operating companies are subject to the laws and regulations applicable to each jurisdiction, as well as the need to maintain capital levels adequate to support the insurance and reinsurance operations, including financial strength ratings issued by independent rating agencies. During the three months ended March 31, 2022, we were able to meet all our obligations, including the payments of dividends on our Common Shares, with our net cash flows.

We assess which subsidiaries to draw dividends from based on a number of factors. Considerations such as regulatory and legal restrictions as well as the subsidiary’s financial condition are paramount to the dividend decision. Chubb Limited received dividends of $1.0 billion and $740 million from its Bermuda subsidiaries during the three months ended March 31, 2022 and 2021, respectively.

The U.S. insurance subsidiaries of Chubb INA Holdings Inc. (Chubb INA) may pay dividends, without prior regulatory approval, subject to restrictions set out in state law of the subsidiary’s domicile (or, if applicable, commercial domicile). Chubb INA’s international subsidiaries are also subject to insurance laws and regulations particular to the countries in which the subsidiaries operate. These laws and regulations sometimes include restrictions that limit the amount of dividends payable without prior approval of regulatory insurance authorities. Chubb Limited received no dividends from Chubb INA during the three months ended March 31, 2022 and 2021. Debt issued by Chubb INA is serviced by statutorily permissible distributions by Chubb INA’s insurance subsidiaries to Chubb INA as well as other group resources. Chubb INA received no dividends from its subsidiaries during the three months ended March 31, 2022 and 2021.

Cash Flows

Our sources of liquidity include cash from operations, routine sales of investments, and financing arrangements. The following is a discussion of our cash flows for the three months ended March 31, 2022 and 2021.

Operating cash flows were $2.4 billion in the three months ended March 31, 2022, compared to $2.1 billion in the prior year period. The increase of $335 million is due to higher premiums collected reflecting premium growth, principally in our commercial lines, and lower taxes paid, partially offset by higher losses paid.

Cash used for investing was $995 million in the three months ended March 31, 2022, compared to $1.3 billion in the prior year period, a decrease of $257 million. Cash used for investing in the current year included higher net sales of equity securities of $730 million, partially offset by higher private equity contributions, net of distributions received, of $241 million, and higher net purchases of fixed maturities of $95 million. In addition, cash used related to acquisitions of Huatai Group ownership interest was $113 million in 2022 compared to $65 million in 2021.

Cash used for financing was $1.3 billion in the three months ended March 31, 2022, compared to $812 million in the prior year period, an increase of $490 million, principally from more shares repurchased in the current year.

Both internal and external forces influence our financial condition, results of operations, and cash flows. Claim settlements, premium levels, and investment returns may be impacted by changing rates of inflation and other economic conditions. In many

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cases, significant periods of time, ranging up to several years or more, may lapse between the occurrence of an insured loss, the reporting of the loss to us, and the settlement of the liability for that loss.

We use repurchase agreements as a low-cost funding alternative. At March 31, 2022, there were $1.4 billion in repurchase agreements outstanding with various maturities over the next seven months.

Capital Resources

Capital resources consist of funds deployed or available to be deployed to support our business operations.

	March 31			December 31
(in millions of U.S. dollars, except for ratios)	2022			2021
Short-term debt	$	1,474		$	999
Long-term debt	14,585			15,169
Total financial debt	16,059			16,168
Trust preferred securities	308			308
Total shareholders’ equity	56,698			59,714
Total capitalization	$	73,065		$	76,190
Ratio of financial debt to total capitalization	22.0		%	21.2		%
Ratio of financial debt plus trust preferred securities to total capitalization	22.4		%	21.6		%

The ratios of financial debt to total capitalization in the table above are higher at March 31, 2022 compared to December 31, 2021 from the decline in shareholders' equity, principally reflecting net unrealized depreciation on investments in the current period compared to net unrealized appreciation in 2021.

Repurchase agreements are excluded from the table above and are disclosed separately from short-term debt in the Consolidated balance sheets. The repurchase agreements are collateralized borrowings where we maintain the right and ability to redeem the collateral on short notice, unlike short-term debt which comprises the current maturities of our long-term debt instruments.

For the three months ended March 31, 2022, we repurchased $1.0 billion of Common Shares in a series of open market transactions under the Board of Directors (Board) share repurchase authorization. At March 31, 2022, there were 35,880,387 Common Shares in treasury with a weighted-average cost of $158.85 per share, and $1.6 billion in share repurchase authorization remained through June 30, 2022. For the period April 1, 2022 through April 28, 2022, we repurchased 115,000 Common Shares for a total of $24 million in a series of open market transactions. At April 28, 2022, $1.6 billion in share repurchase authorization remained.

We generally maintain the ability to issue certain classes of debt and equity securities via a Securities and Exchange Commission (SEC) shelf registration statement which is renewed every three years. This allows us capital market access for refinancing as well as for unforeseen or opportunistic capital needs.

Dividends

We have paid dividends each quarter since we became a public company in 1993. Under Swiss law, dividends must be stated in Swiss francs though dividend payments are made by Chubb in U.S. dollars. Refer to Note 8 to the Consolidated Financial Statements for a discussion of our dividend methodology.

At our May 2021 annual general meeting, our shareholders approved an annual dividend for the following year of up to $3.20 per share, or CHF 2.87 per share, calculated using the USD/CHF exchange rate as published in the Wall Street Journal on May 20, 2021, expected to be paid in four quarterly installments of $0.80 per share after the general meeting by way of a distribution from capital contribution reserves, transferred to free reserves for payment. The Board determines the record and payment dates at which the annual dividend may be paid until the date of the 2022 annual general meeting, and is authorized to abstain from distributing a dividend at its discretion. The four quarterly installments each of $0.80 per share were distributed by the Board as expected. The annual dividend approved in May 2021 represented a $0.08 per share increase ($0.02 per quarter) over the prior year dividend.

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The following table represents dividends paid per Common Share to shareholders of record on each of the following dates: 

Shareholders of record as of:	Dividends paid as of:
December 17, 2021	January 7, 2022	$0.80 (CHF 0.74)
March 18, 2022	April 8, 2022	$0.80 (CHF 0.74)

Information provided in connection with outstanding debt of subsidiaries

Chubb INA Holdings Inc. (Subsidiary Issuer) is an indirect 100 percent-owned and consolidated subsidiary of Chubb Limited (Parent Guarantor). The Parent Guarantor fully and unconditionally guarantees certain of the debt of the Subsidiary Issuer.

The following table presents the condensed balance sheets of Chubb Limited and Chubb INA Holdings Inc., after elimination of investment in any non-guarantor subsidiary:

	Chubb Limited (Parent Guarantor)				Chubb INA Holdings Inc. (Subsidiary Issuer)
	March 31		December 31		March 31		December 31
(in millions of U.S. dollars)	2022		2021		2022		2021
Assets
Investments	$	—	$	—	$	150	$	149
Cash	142		1		31		580
Due from parent guarantor/subsidiary issuer	2		2		732		348
Due from subsidiaries that are not issuers or guarantors	1,825		1,805		567		526
Other assets	8		16		2,197		1,667
Total assets	$	1,977	$	1,824	$	3,677	$	3,270
Liabilities
Due to parent guarantor/subsidiary issuer	$	732	$	348	$	2	$	2
Due to subsidiaries that are not issuers or guarantors	325		241		2,130		1,647
Affiliated notional cash pooling programs	—		8		—		—
Short-term debt	—		—		1,474		999
Long-term debt	—		—		14,585		15,169
Trust preferred securities	—		—		308		308
Other liabilities	350		363		1,845		1,803
Total liabilities	1,407		960		20,344		19,928
Total shareholders’ equity	570		864		(16,667)		(16,658)
Total liabilities and shareholders’ equity	$	1,977	$	1,824	$	3,677	$	3,270

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The following table presents the condensed statements of operations and comprehensive income of Chubb Limited and Chubb INA Holdings Inc., excluding equity in earnings from non-guarantor subsidiaries:

Three Months Ended March 31, 2022	Chubb Limited (Parent Guarantor)		Chubb INA Holdings Inc. (Subsidiary Issuer)
(in millions of U.S. dollars)
Net investment income (loss)	$	2	$	(1)
Net realized gains (loss)	24		96
Administrative expenses	27		(28)
Interest (income) expense	(15)		138
Other (income) expense	(13)		10
Income tax expense (benefit)	7		(13)
Net income (loss)	$	20	$	(12)
Comprehensive income (loss)	$	20	$	(14)

ITEM 3. Quantitative and Qualitative Disclosures about Market Risk

Refer to Item 7A included in our 2021 Form 10-K.

Foreign currency management

As a global company, Chubb entities transact business in multiple currencies. Our policy is to generally match assets, liabilities and required capital for each individual jurisdiction in local currency, which would include the use of derivatives. We do not hedge our net asset non-U.S. dollar capital positions. We occasionally engage in hedging activity for planned cross border transactions. For an estimated impact of foreign currency movement on our net assets denominated in non-U.S. currencies, refer to Item 7A in our 2021 Form 10-K. This information will be updated and disclosed in interim filings if our net assets in non-U.S. currencies change materially from the December 31, 2021 balances disclosed in the 2021 Form 10-K.

Reinsurance of GMDB and GLB guarantees

Chubb views its variable annuity reinsurance business as having a similar risk profile to that of catastrophe reinsurance with the probability of long-term economic loss relatively small, at the time of pricing. Adverse changes in market factors and policyholder behavior will have an impact on both realized gains (losses) and net income for GLB and both Life Insurance underwriting income and net income for GMDB. When evaluating these risks, we expect to be compensated for taking both the risk of a cumulative long-term economic net loss, as well as the short-term accounting variations caused by these market movements. Therefore, we evaluate this business in terms of its long-term economic risk and reward.

For the GMDB reinsurance business, net income is directly impacted by changes in future policy benefit reserves. For the GLB reinsurance business, net income is directly impacted by changes in the fair value of the GLB liability (FVL), which is classified as a derivative for accounting purposes. The FVL calculation is directly affected by market factors, including equity levels, interest rate levels, credit risk, and implied volatilities, as well as policyholder behaviors, such as annuitization and lapse rates, and policyholder mortality.

The tables below are estimates of the sensitivities to instantaneous changes in economic inputs (e.g., equity shock, interest rate shock etc.) at March 31, 2022 of the FVL and of the fair value of specific derivative instruments held (hedge value) to partially offset the risk in the variable annuity guarantee reinsurance portfolio. The following assumptions should be considered when using the below tables:

•Equity shocks impact all global equity markets equally

•Our liabilities are sensitive to global equity markets in the following proportions: 80 percent—90 percent U.S. equity, and 10 percent—20 percent international equity.

•Our current hedge portfolio is sensitive only to U.S. equity markets.

•We would suggest using the S&P 500 index as a proxy for U.S. equity, and the MSCI EAFE index as a proxy for international equity.

•Interest rate shocks assume a parallel shift in the U.S. yield curve

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•Our liabilities are also sensitive to global interest rates at various points on the yield curve, mainly the U.S. Treasury curve in the following proportions: 5 percent—15 percent short-term rates (maturing in less than 5 years), 15 percent—25 percent medium-term rates (maturing between 5 years and 10 years, inclusive), and 70 percent—80 percent long-term rates (maturing beyond 10 years).

•A change in AA-rated credit spreads impacts the rate used to discount cash flows in the fair value model. AA-rated credit spreads are a proxy for both our own credit spreads and the credit spreads of the ceding insurers.

•The hedge sensitivity is from March 31, 2022 market levels and only applicable to the equity and interest rate sensitivities table below.

•The sensitivities do not scale linearly and may be proportionally greater for larger movements in the market factors. Actual sensitivity of our net income may differ from those disclosed in the tables below due to fluctuations in short-term market movements.

Sensitivities to equity and interest rate movements
(in millions of U.S. dollars)		Worldwide Equity Shock
Interest Rate Shock		+10%		Flat		-10%		-20%		-30%		-40%
+100 bps	(Increase)/decrease in FVL	$	294	$	198	$	81	$	(71)	$	(260)	$	(494)
	Increase/(decrease) in hedge value	(88)		—		88		175		263		351
	Increase/(decrease) in net income	$	206	$	198	$	169	$	104	$	3	$	(143)
Flat	(Increase)/decrease in FVL	$	119	$	—	$	(151)	$	(333)	$	(555)	$	(824)
	Increase/(decrease) in hedge value	(88)		—		88		175		263		351
	Increase/(decrease) in net income	$	31	$	—	$	(63)	$	(158)	$	(292)	$	(473)
-100 bps	(Increase)/decrease in FVL	$	(105)	$	(255)	$	(431)	$	(641)	$	(893)	$	(1,190)
	Increase/(decrease) in hedge value	(88)		—		88		175		263		351
	Increase/(decrease) in net income	$	(193)	$	(255)	$	(343)	$	(466)	$	(630)	$	(839)
Sensitivities to Other Economic Variables		AA-rated Credit Spreads				Interest Rate Volatility				Equity Volatility
(in millions of U.S. dollars)		+100 bps		-100 bps		+2%		-2%		+2%		-2%
(Increase)/decrease in FVL		$	58	$	(66)	$	(2)	$	2	$	(20)	$	19
Increase/(decrease) in net income		$	58	$	(66)	$	(2)	$	2	$	(20)	$	19

All our variable annuity reinsurance treaties include annual or aggregate claim limits and many include an aggregate deductible which limit the net amount at risk under these programs. For an estimated impact on the variable annuity net amount at risk from changes in equity market levels, refer to Item 7A in our 2021 Form 10-K. This information will be updated and disclosed in interim filings if the sensitivities change materially from the tables disclosed in the 2021 Form 10-K.

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ITEM 4. Controls and Procedures

Chubb’s management, with the participation of Chubb’s Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of Chubb’s disclosure controls and procedures as defined in Rule 13a-15(e) and Rule 15d-15(e) under the Securities Exchange Act of 1934 as of March 31, 2022. Based upon that evaluation, Chubb’s Chief Executive Officer and Chief Financial Officer concluded that Chubb’s disclosure controls and procedures are effective in allowing information required to be disclosed in reports filed under the Securities Exchange Act of 1934 to be recorded, processed, summarized, and reported within time periods specified in the rules and forms of the SEC, and that such information is accumulated and communicated to Chubb’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

There have been no changes in Chubb's internal controls over financial reporting during the three months ended March 31, 2022, that have materially affected, or are reasonably likely to materially affect, Chubb's internal controls over financial reporting.

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PART II OTHER INFORMATION

ITEM 1. Legal Proceedings

The information required with respect to this item is included in Note 7 g) to the Consolidated Financial Statements, which is hereby incorporated herein by reference.

ITEM 1A. Risk Factors

There have been no material changes to the risk factors described under "Risk Factors" under Item 1A of Part I of our 2021 Form 10-K.

ITEM 2. Unregistered Sales of Equity Securities and Use of Proceeds and Issuer Repurchases of Equity Securities

Issuer’s Repurchases of Equity Securities

The following table provides information with respect to purchases by Chubb of its Common Shares during the three months ended March 31, 2022:

Period	Total Number of Shares Purchased (1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plan (2)	Approximate Dollar Value of Shares that May Yet be Purchased Under the Plan (3)
January 1 through January 31	1,017	$	193.66	—	$	2.65	billion
February 1 through February 28	2,755,652	$	205.12	2,412,600	$	2.15	billion
March 1 through March 31	2,510,320	$	205.93	2,457,300	$	1.65	billion
Total	5,266,989	$	205.51	4,869,900

(1)This column represents open market share repurchases and the surrender to Chubb of Common Shares to satisfy tax withholding obligations in connection with the vesting of restricted stock issued to employees and to cover the cost of the exercise of options by employees through stock swaps.

(2)The aggregate value of shares purchased in the three months ended March 31, 2022 as part of the publicly announced plan was $1.0 billion. In July 2021, the Board authorized a one-time incremental share repurchase program of up to $5.0 billion through June 30, 2022. Refer to Note 8 to the Consolidated Financial Statements for more information on the Chubb Limited securities repurchase authorizations.

(3)For the period April 1, 2022 through April 28, 2022, we repurchased 115,000 Common Shares for a total of $24 million in a series of open market transactions. As of April 28, 2022, $1.62 billion in share repurchase authorization remained through June 30, 2022.

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ITEM 6. Exhibits

		Incorporated by Reference
Exhibit Number	Exhibit Description	Form	Original Number	Date Filed	Filed Herewith
3.1	Articles of Association of the Company, as amended and restated	8-K	3.1	January 20, 2022
3.2	Organizational Regulations of the Company, as amended	8-K	3.1	November 21, 2016
4.1	Articles of Association of the Company, as amended and restated	8-K	4.1	January 20, 2022
4.2	Organizational Regulations of the Company, as amended	8-K	3.1	November 21, 2016
22.1	Guaranteed Securities	10-K	22.1	February 24, 2022
31.1	Certification Pursuant to Section 302 of The Sarbanes-Oxley Act of 2002				X
31.2	Certification Pursuant to Section 302 of The Sarbanes-Oxley Act of 2002				X
32.1	Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of The Sarbanes-Oxley Act of 2002				X
32.2	Certification Pursuant to 18 U.S.C. Section 1350, As Adopted Pursuant to Section 906 of The Sarbanes-Oxley Act of 2002				X
101.1	The following financial information from Chubb Limited’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2022 formatted in Inline XBRL: (i) Consolidated Balance Sheets at March 31, 2022, and December 31, 2021; (ii) Consolidated Statements of Operations and Comprehensive Income for the three months ended March 31, 2022 and 2021; (iii) Consolidated Statements of Shareholders’ Equity for the three months ended March 31, 2022 and 2021; (iv) Consolidated Statements of Cash Flows for the three months ended March 31, 2022 and 2021; and (v) Notes to Consolidated Financial Statements				X
104.1	The Cover Page Interactive Data File formatted in Inline XBRL (The cover page XBRL tags are embedded in the Inline XBRL document and included in Exhibit 101.1)

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SIGNATURES

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.

	CHUBB LIMITED
	(Registrant)
April 29, 2022	/s/ Evan G. Greenberg
	Evan G. Greenberg
	Chairman and Chief Executive Officer
April 29, 2022	/s/ Peter C. Enns
	Peter C. Enns
	Executive Vice President and Chief Financial Officer

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EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO

SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, Evan G. Greenberg, certify that:

1)I have reviewed this quarterly report on Form 10-Q of Chubb Limited;

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 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 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: April 29, 2022

/s/ Evan G. Greenberg

Evan G. Greenberg

Chairman and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, Peter C. Enns, certify that:

1)I have reviewed this quarterly report on Form 10-Q of Chubb Limited;

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 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 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:April 29, 2022

/s/ Peter C. Enns

Peter C. Enns

Executive Vice President and Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned officer of Chubb Limited (the Corporation) hereby certifies that the Corporation’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2022, fully complies with the applicable reporting requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a)) and that the information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Corporation.

Date:April 29, 2022	/s/ Evan G. Greenberg
	Evan G. Greenberg
	Chairman and Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned officer of Chubb Limited (the Corporation) hereby certifies that the Corporation’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2022, fully complies with the applicable reporting requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a)) and that the information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Corporation.

Date: April 29, 2022	/s/ Peter C. Enns
	Peter C. Enns
	Executive Vice President and Chief Financial Officer

XML

Document and Entity Information - SFr / shares	3 Months Ended
	Mar. 31, 2022	Apr. 22, 2022	Dec. 31, 2021
Document Type	10-Q
Document Period End Date	Mar. 31, 2022
Document Quarterly Report	true
Document Transition Report	false
Entity Registrant Name	CHUBB LIMITED
Entity Central Index Key	0000896159
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1
Entity File Number	1-11778
Entity Incorporation, State or Country Code	V8
Entity Tax Identification Number	98-0091805
Entity Address, Address Line One	Baerengasse 32
Entity Address, City or Town	Zurich
Entity Address, Country	CH
Entity Address, Postal Zip Code	8001
Country Region	41
City Area Code	(0)43
Local Phone Number	456 76 00
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Shell Company	false
Entity Emerging Growth Company	false
Common Shares, par value	SFr 24.15		SFr 24.15
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Common Shares Outstanding		423,711,369
INA Senior Notes Due March 2038 [Member]
Title of 12(b) Security	Guarantee of Chubb INA Holdings Inc. 2.50% Senior Notes due 2038
Trading Symbol	CB/38A
Security Exchange Name	NYSE
INA Senior Notes Due December 2029 [Member]
Title of 12(b) Security	Guarantee of Chubb INA Holdings Inc. 0.875% Senior Notes due 2029
Trading Symbol	CB/29A
Security Exchange Name	NYSE
INA Senior Notes Due June 2031 [Member]
Title of 12(b) Security	Guarantee of Chubb INA Holdings Inc. 1.40% Senior Notes due 2031
Trading Symbol	CB/31
Security Exchange Name	NYSE
INA Senior Notes Due March 2028 [Member]
Title of 12(b) Security	Guarantee of Chubb INA Holdings Inc. 1.55% Senior Notes due 2028
Trading Symbol	CB/28
Security Exchange Name	NYSE
INA Senior Notes Due June 2027 [Member]
Title of 12(b) Security	Guarantee of Chubb INA Holdings Inc. 0.875% Senior Notes due 2027
Trading Symbol	CB/27
Security Exchange Name	NYSE
INA Senior Notes Due December 2024 [Member]
Title of 12(b) Security	Guarantee of Chubb INA Holdings Inc. 0.30% Senior Notes due 2024
Trading Symbol	CB/24A
Security Exchange Name	NYSE
Common Class A [Member]
Title of 12(b) Security	Common Shares, par value CHF 24.15 per share
Trading Symbol	CB
Security Exchange Name	NYSE

XML

Consolidated Balance Sheets - USD ($) $ in Millions		Mar. 31, 2022	Dec. 31, 2021
Assets
Fixed maturities available for sale, at fair value, net of valuation allowance - $27 and $14 (amortized cost – $91,526 and $90,493)		$ 89,479	$ 93,108
Fixed maturities held to maturity, at amortized cost, net of valuation allowance - $34 and $35 (fair value – $9,888 and $10,647)		9,818	10,118
Equity securities, at fair value		3,596	4,782
Short-term investments, at fair value (amortized cost – $3,408 and $3,147)		3,407	3,146
Other investments, at fair value		11,947	11,169
Total investments		118,247	122,323
Cash		1,734	1,659
Restricted cash		180	152
Securities lending collateral		1,800	1,831
Accrued investment income		822	821
Insurance and reinsurance balances receivable, net of valuation allowance - $50 and $46		11,452	11,322
Reinsurance recoverable on losses and loss expenses, net of valuation allowance - $329 and $329	[1]	17,761	17,366
Reinsurance recoverable on policy benefits	[1]	208	213
Deferred policy acquisition costs		5,587	5,513
Value of business acquired		231	236
Goodwill		15,244	15,213
Other intangible assets		5,399	5,455
Deferred tax assets		333	0
Prepaid reinsurance premiums		3,068	3,028
Investments in partially-owned insurance companies		3,161	3,130
Other assets		12,763	11,792
Total assets		197,990	200,054
Liabilities
Unpaid losses and loss expenses		73,844	72,943
Unearned premiums		19,586	19,101
Future policy benefits		5,974	5,947
Insurance and reinsurance balances payable		7,401	7,243
Securities lending payable		1,800	1,831
Accounts payable, accrued expenses, and other liabilities		14,914	15,004
Deferred tax liabilities		0	389
Repurchase agreements		1,406	1,406
Short-term debt		1,474	999
Long-term debt		14,585	15,169
Trust preferred securities		308	308
Total liabilities		141,292	140,340
Commitments and contingencies (refer to Note 7)
Shareholders’ equity
Common Shares (CHF 24.15 par value; 459,555,714 and 474,021,114 shares issued; 423,675,327 and 426,572,612 shares outstanding)		10,666	10,985
Common Shares in treasury (35,880,387 and 47,448,502 shares)		(5,700)	(7,464)
Additional paid-in capital		7,988	8,478
Retained earnings		47,148	47,365
Accumulated other comprehensive income (loss) (AOCI)		(3,404)	350
Total shareholders’ equity		56,698	59,714
Total liabilities and shareholders’ equity		$ 197,990	$ 200,054

[1] Net of valuation allowance for uncollectible reinsurance.

XML

Statement of Financial Position (Parentheticals) $ in Millions	Mar. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares
Statement of Financial Position [Abstract]
Debt Securities, Available-for-sale, Allowance for Credit Loss	$ 27	$ 14
Available for sale, at amortized cost	91,526	90,493
Debt Securities, Held-to-maturity, Allowance for Credit Loss	34	35
Held to maturity, Fair Value	9,888	10,647
short-term investments amortized cost	3,408	3,147
Premium Receivable, Allowance for Credit Loss	50	46
Reinsurance Recoverable, Allowance for Credit Loss	$ 329	$ 329
Common Shares, shares issued | shares	459,555,714	474,021,114
Common Shares, shares outstanding | shares	423,675,327	426,572,612
Common Shares in treasury, shares | shares	35,880,387	47,448,502

XML

Consolidated Statements Of Operations and Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues
Net premiums written	$ 9,199	$ 8,662
Increase in unearned premiums	(453)	(441)
Net premiums earned	8,746	8,221
Net investment income	822	863
Net realized gains (losses) (includes $(136) and $24 reclassified from AOCI)	101	887
Total revenues	9,669	9,971
Expenses
Losses and loss expenses	4,787	5,053
Policy benefits	145	167
Policy acquisition costs	1,737	1,665
Administrative expenses	778	744
Interest expense	132	122
Other (income) expense	(310)	(490)
Amortization of purchased intangibles	71	72
Total expenses	7,340	7,333
Income before income tax	2,329	2,638
Income tax expense (includes $(22) and $4 on unrealized gains and losses reclassified from AOCI)	355	338
Net income	1,974	2,300
Other comprehensive loss
Unrealized depreciation	(4,788)	(2,293)
Reclassification adjustment for net realized (gains) losses included in net income	136	(24)
Unrealized appreciation (depreciation) after reclassification adjustment	(4,652)	(2,317)
Change in:
Cumulative foreign currency translation adjustment	67	22
Postretirement benefit liability adjustment	19	(28)
Other comprehensive loss, before income tax	(4,566)	(2,323)
Income tax benefit related to OCI items	812	412
Other comprehensive loss	(3,754)	(1,911)
Comprehensive income (loss)	$ (1,780)	$ 389
Earnings per share
Basic earnings per share	$ 4.64	$ 5.10
Diluted earnings per share	$ 4.59	$ 5.07

XML

Consolidated Statements of Operations and Comprehensive Income (Parentheticals) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	$ (22)	$ 4
Total net realized gains (losses) reclassified from AOCI	$ (136)	$ 24

XML

Consolidated Statements Of Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Common shares in treasury [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]	Cumulative Foreign Currency Translation Adjustment [Member]	Postretirement Benefit Liability Adjustment [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance - beginning of period at Dec. 31, 2020		$ 11,064	$ (3,644)	$ 9,815	$ 39,337	$ 4,673	$ (1,637)	$ (167)
Common Shares repurchased			(519)
Treasury Stock, Retired, Cost Method, Amount		0	0		0
Net shares redeemed under employee share-based compensation plans			262	(187)
Exercise of stock options				(24)
Share-based compensation expense				66
Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings				(352)
Net income (loss)	$ 2,300				2,300
Funding of dividends declared from Additional paid-in capital					352
Dividends declared on Common Shares					(352)
Change in period, before reclassification from AOCI, net of income tax benefit of $834 and $401						(1,892)
Amounts reclassified from AOCI, net of income tax (expense) benefit of $(22) and $4						(20)
Change in period, net of income tax benefit of $812 and $405						(1,912)
Change in period, net of income tax benefit of $4 and $2							24
Change in period, net of income tax (expense) benefit of $(4) and $5								(23)
Balance - end of period at Mar. 31, 2021	59,076	11,064	(3,901)	9,318	41,637	2,761	(1,613)	(190)	$ 958
Balance - beginning of period at Dec. 31, 2021	59,714	10,985	(7,464)	8,478	47,365	2,256	(2,146)	240
Common Shares repurchased			(1,001)
Treasury Stock, Retired, Cost Method, Amount		(319)	2,510		(2,191)
Net shares redeemed under employee share-based compensation plans			255	(199)
Exercise of stock options				(21)
Share-based compensation expense				70
Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings				(340)
Net income (loss)	1,974				1,974
Funding of dividends declared from Additional paid-in capital					340
Dividends declared on Common Shares					(340)
Change in period, before reclassification from AOCI, net of income tax benefit of $834 and $401						(3,954)
Amounts reclassified from AOCI, net of income tax (expense) benefit of $(22) and $4						114
Change in period, net of income tax benefit of $812 and $405						(3,840)
Change in period, net of income tax benefit of $4 and $2							71
Change in period, net of income tax (expense) benefit of $(4) and $5								15
Balance - end of period at Mar. 31, 2022	$ 56,698	$ 10,666	$ (5,700)	$ 7,988	$ 47,148	$ (1,584)	$ (2,075)	$ 255	$ (3,404)

XML

Statement of Shareholders' Equity (Parentheticals) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Stockholders' Equity [Abstract]
OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, Tax	$ 834	$ 401
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	(22)	4
Other Comprehensive Income (Loss), Securities, Available-for-sale, Tax	812	405
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	4	2
Pension liability adjustment, Change in period, income tax (expense) benefit	$ (4)	$ 5

XML

Consolidated Statements Of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net income (loss)		$ 1,974	$ 2,300
Adjustments to reconcile net income to net cash flows from operating activities
Net realized (gains) losses		(101)	(887)
Amortization of premiums/discounts on fixed maturities		91	76
Amortization of purchased intangibles		71	72
Deferred income taxes		93	0
Unpaid losses and loss expenses		957	1,368
Unearned premiums		502	503
Future policy benefits		36	47
Insurance and reinsurance balances payable		147	(36)
Accounts payable, accrued expenses, and other liabilities		(338)	(663)
Income taxes payable		128	101
Insurance and reinsurance balances receivable		(125)	(209)
Reinsurance recoverable		(456)	(290)
Deferred policy acquisition costs		(96)	(81)
Income (Loss) from Equity Method Investments	[1]	(361)	(497)
Other		(82)	301
Net cash flows from operating activities		2,440	2,105
Cash flows from investing activities
Purchases of fixed maturities available for sale		(5,933)	(7,738)
Purchases of fixed maturities held to maturity		(143)	(102)
Purchases of equity securities		(380)	(351)
Sales of fixed maturities available for sale		1,838	1,343
Sales of equity securities		1,110	351
Maturities and redemptions of fixed maturities available for sale		3,003	4,289
Maturities and redemptions of fixed maturities held to maturity		398	604
Net change in short-term investments		(267)	595
Net derivative instruments settlements		74	87
Private equity contribution		(669)	(427)
Private equity distribution		207	206
Payment, including deposit, for Huatai Group Interest		(113)	(65)
Other		(120)	(44)
Net cash flows used for investing activities		(995)	(1,252)
Cash flows from financing activities
Dividends paid on Common Shares		(341)	(352)
Common Shares repurchased		(1,001)	(519)
Proceeds from issuance of repurchase agreements		146	450
Repayment of repurchase agreements		(146)	(450)
Proceeds from share-based compensation plans		114	115
Policyholder contract deposits and other		118	133
Policyholder contract withdrawals and other		(111)	(124)
Payment, Tax Withholding, Share-based Payment Arrangement		(81)	(65)
Net cash flows used for financing activities		(1,302)	(812)
Effect of foreign currency rate changes on cash and restricted cash		(40)	(36)
Net increase (decrease) in cash and restricted cash		103	5
Cash and restricted cash - beginning of period		1,811	1,836
Cash and restricted cash - end of period		1,914	1,841
Supplemental cash flow information
Taxes paid		132	236
Interest paid		$ 85	$ 90

[1] Equity in net income of partially-owned entities includes $40 million and $49 million attributable to our investments in Huatai (Huatai Group, Huatai P&C, and Huatai Life) for the three months ended March 31, 2022 and 2021, respectively.

XML

General

3 Months Ended

Mar. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

General

General

a) Basis of presentation

Chubb Limited is a holding company incorporated in Zurich, Switzerland. Chubb Limited, through its subsidiaries, provides a broad range of insurance and reinsurance products to insureds worldwide. Our results are reported through the following business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. Refer to Note 12 for additional information.

The interim unaudited consolidated financial statements, which include the accounts of Chubb Limited and its subsidiaries (collectively, Chubb, we, us, or our), have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) and, in the opinion of management, reflect all adjustments necessary for a fair statement of the results and financial position for such periods. All significant intercompany accounts and transactions, including internal reinsurance transactions, have been eliminated.

The results of operations and cash flows for any interim period are not necessarily indicative of the results for the full year. These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our 2021 Form 10-K.

b) Restricted cash

Restricted cash in the Consolidated balance sheets represents amounts held for the benefit of third parties and is legally or contractually restricted as to withdrawal or usage. Amounts include deposits with U.S. and non-U.S. regulatory authorities, trust funds set up for the benefit of ceding companies, and amounts pledged as collateral to meet financing arrangements.

The following table provides a reconciliation of cash and restricted cash reported within the Consolidated balance sheets that total to the amounts shown in the Consolidated statements of cash flows:

	March 31		December 31
(in millions of U.S. dollars)	2022		2021
Cash	$	1,734	$	1,659
Restricted cash	180		152
Total cash and restricted cash shown in the Consolidated statements of cash flows	$	1,914	$	1,811

c) Goodwill

During the three months ended March 31, 2022, Goodwill increased $31 million, primarily reflecting the impact of foreign exchange.

d) Accounting guidance not yet adopted

Targeted Improvements to the Accounting for Long-Duration Contracts

In August 2018, the FASB issued guidance to improve the existing recognition, measurement, presentation, and disclosure requirements for long-duration contracts issued by an insurance entity. The amendments in this update require more frequent updating of assumptions and a standardized discount rate for the future policy benefit liability, a requirement to use the fair value measurement model for policies with market risk benefits, simplified amortization of deferred acquisition costs, and enhanced disclosures. This standard will be effective in the first quarter of 2023 with early adoption permitted. We are currently assessing the effect of adopting this guidance on our financial condition and results of operations. We will be better able to quantify the effect of adopting this standard as we progress in our implementation process and draw nearer to the date of adoption.

XML

Acquisitions

3 Months Ended

Mar. 31, 2022

Business Combinations [Abstract]

Acquisitions

Acquisitions

Cigna’s Life and Accident and Health (A&H) Insurance Business in Asia-Pacific Markets

On October 7, 2021, we entered into a definitive agreement to acquire the life and non-life insurance companies that house the personal accident, supplemental health and life insurance business of Cigna in six Asia-Pacific markets, for approximately $5.72 billion in cash, subject to certain post-closing purchase adjustments. The transaction is expected to be completed in 2022. The timing of completion is subject to required regulatory approvals and customary closing conditions.

Huatai Group

Chubb maintains a direct investment in Huatai Insurance Group Co., Ltd. (Huatai Group). Huatai Group is the parent company of, and owns 100 percent of, Huatai Property & Casualty Insurance Co., Ltd. (Huatai P&C), approximately 80 percent of Huatai Life Insurance Co., Ltd. (Huatai Life), and approximately 82 percent of Huatai Asset Management Co., Ltd. (collectively, Huatai). Huatai Group's insurance operations have more than 600 branches and approximately 19 million customers in China.

As of March 31, 2022, Chubb's aggregate ownership interest in Huatai Group was approximately 47.3 percent. Chubb applies the equity method of accounting to its investment in Huatai Group by recording its share of net income or loss in Other (income) expense in the Consolidated statements of operations.

During 2021, Chubb entered into agreements with several counterparties to purchase incremental ownership interests in Huatai Group totaling approximately 31.8 percent for approximately $2.2 billion. In connection with these agreements, Chubb paid approximately $1.1 billion in deposits. In January 2022, we paid $113 million relating to these agreements. Chubb entered into an agreement to acquire an approximate 7.1 percent ownership interest in Huatai Group for approximately $0.5 billion, which was paid as a deposit in 2020. The purchase of the additional ownership interests is contingent upon important conditions. As Chubb’s ownership interest increases, we will continue to evaluate the appropriateness of consolidation accounting in accordance with the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) 810, Consolidation, and other applicable regulations.

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Investments

3 Months Ended

Mar. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Investments

3. Investments

a) Fixed maturities

March 31, 2022	Amortized Cost		Valuation Allowance		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
(in millions of U.S. dollars)
Available for sale
U.S. Treasury / Agency	$	2,111	$	—	$	31	$	(40)	$	2,102
Non-U.S.	25,304		(16)		380		(884)		24,784
Corporate and asset-backed securities	38,469		(11)		360		(1,149)		37,669
Mortgage-backed securities	20,511		—		90		(796)		19,805
Municipal	5,131		—		49		(61)		5,119
	$	91,526	$	(27)	$	910	$	(2,930)	$	89,479
	Amortized Cost		Valuation Allowance		Net Carrying Value		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
Held to maturity
U.S. Treasury / Agency	$	1,180	$	—	$	1,180	$	12	$	(18)	$	1,174
Non-U.S.	1,185		(5)		1,180		19		(8)		1,191
Corporate and asset-backed securities	1,913		(28)		1,885		56		(6)		1,935
Mortgage-backed securities	1,689		—		1,689		8		(13)		1,684
Municipal	3,885		(1)		3,884		24		(4)		3,904
	$	9,852	$	(34)	$	9,818	$	119	$	(49)	$	9,888

December 31, 2021	Amortized Cost		Valuation Allowance		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
(in millions of U.S. dollars)
Available for sale
U.S. Treasury / Agency	$	2,111	$	—	$	109	$	(6)	$	2,214
Non-U.S.	25,156		(8)		953		(272)		25,829
Corporate and asset-backed securities	37,844		(6)		1,410		(185)		39,063
Mortgage-backed securities	20,080		—		532		(123)		20,489
Municipal	5,302		—		216		(5)		5,513
	$	90,493	$	(14)	$	3,220	$	(591)	$	93,108
	Amortized Cost		Valuation Allowance		Net Carrying Value		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
Held to maturity
U.S. Treasury / Agency	$	1,213	$	—	$	1,213	$	34	$	(3)	$	1,244
Non-U.S.	1,201		(5)		1,196		66		—		1,262
Corporate and asset-backed securities	2,032		(28)		2,004		197		—		2,201
Mortgage-backed securities	1,731		(1)		1,730		74		(1)		1,803
Municipal	3,976		(1)		3,975		162		—		4,137
	$	10,153	$	(35)	$	10,118	$	533	$	(4)	$	10,647

The following table presents the amortized cost of our HTM securities according to S&P rating:

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars, except for percentages)	Amortized cost		% of Total		Amortized cost		% of Total
AAA	$	2,021	21	%	$	2,089	21	%
AA	5,210		52	%	5,303		52	%
A	1,922		20	%	1,964		19	%
BBB	676		7	%	773		8	%
BB	23		—	%	23		—	%
Other	—		—	%	1		—	%
Total	$	9,852	100	%	$	10,153	100	%

The following table presents fixed maturities by contractual maturity:

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars)	Net Carrying Value		Fair Value		Net Carrying Value		Fair Value
Available for sale
Due in 1 year or less	$	4,393	$	4,393	$	4,498	$	4,498
Due after 1 year through 5 years	25,136		25,136		25,542		25,542
Due after 5 years through 10 years	27,033		27,033		28,207		28,207
Due after 10 years	13,112		13,112		14,372		14,372
	69,674		69,674		72,619		72,619
Mortgage-backed securities	19,805		19,805		20,489		20,489
	$	89,479	$	89,479	$	93,108	$	93,108
Held to maturity
Due in 1 year or less	$	871	$	872	$	888	$	894
Due after 1 year through 5 years	3,754		3,742		3,744		3,846
Due after 5 years through 10 years	2,004		2,015		2,242		2,349
Due after 10 years	1,500		1,575		1,514		1,755
	8,129		8,204		8,388		8,844
Mortgage-backed securities	1,689		1,684		1,730		1,803
	$	9,818	$	9,888	$	10,118	$	10,647

Expected maturities could differ from contractual maturities because borrowers may have the right to call or prepay obligations, with or without call or prepayment penalties. 

b) Gross unrealized loss

Fixed maturities in an unrealized loss position at March 31, 2022 and December 31, 2021 comprised both investment grade and below investment grade securities for which fair value declined, principally due to rising interest rates since the date of purchase. Refer to Note 3 in the 2021 Form 10-K for further information on factors considered in the evaluation of expected credit losses.

The following tables present, for Available for Sale (AFS) fixed maturities in an unrealized loss position (including securities on loan) that are not deemed to have expected credit losses, the aggregate fair value and gross unrealized loss by length of time the security has been in an unrealized loss position:

	0 – 12 Months				Over 12 Months				Total
March 31, 2022	Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury / Agency	$	946	$	(31)	$	98	$	(9)	$	1,044	$	(40)
Non-U.S.	12,654		(608)		2,385		(222)		15,039		(830)
Corporate and asset-backed securities	21,082		(899)		2,041		(216)		23,123		(1,115)
Mortgage-backed securities	13,657		(646)		1,589		(150)		15,246		(796)
Municipal	1,225		(60)		16		(1)		1,241		(61)
Total AFS fixed maturities	$	49,564	$	(2,244)	$	6,129	$	(598)	$	55,693	$	(2,842)

	0 – 12 Months				Over 12 Months				Total
December 31, 2021	Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury / Agency	$	363	$	(3)	$	70	$	(3)	$	433	$	(6)
Non-U.S.	6,917		(196)		1,093		(62)		8,010		(258)
Corporate and asset-backed securities	9,449		(145)		806		(32)		10,255		(177)
Mortgage-backed securities	8,086		(116)		190		(7)		8,276		(123)
Municipal	226		(5)		—		—		226		(5)
Total AFS fixed maturities	$	25,041	$	(465)	$	2,159	$	(104)	$	27,200	$	(569)

c) Net realized gains (losses)

The following table presents the components of Net realized gains (losses):

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Fixed maturities:
Gross realized gains	$	39	$	37
Gross realized losses	(127)		(19)
Net (provision for) recovery of expected credit losses	(12)		6
Impairment (1)	(36)		—
Total fixed maturities	(136)		24
Equity securities	56		367
Other investments	55		38
Foreign exchange	75		76
Investment and embedded derivative instruments	47		109
Fair value adjustments on insurance derivative	35		319
S&P futures	42		(44)
Other derivative instruments	1		(1)
Other (2)	(74)		(1)
Net realized gains (losses) (pre-tax)	$	101	$	887

(1)Relates to certain securities we intended to sell and securities written to market entering default.

(2)Other realized losses include impairment of assets related to Chubb's Russian entities.

Realized gains and losses from Equity securities and Other investments from the table above include sales of securities and unrealized gains and losses from fair value changes as follows:

							Three Months Ended
							March 31
	2022						2021
(in millions of U.S. dollars)	Equity Securities		Other Investments		Total		Equity Securities		Other Investments		Total
Net gains recognized during the period	$	56	$	55	$	111	$	367	$	38	$	405
Less: Net gains recognized from sales of securities	255		—		255		45		—		45
Unrealized gains (losses) recognized for securities still held at reporting date	$	(199)	$	55	$	(144)	$	322	$	38	$	360

The following table presents a roll-forward of valuation allowance for expected credit losses on fixed maturities:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Available for sale
Valuation allowance for expected credit losses - beginning of period	$	14	$	20
Provision for expected credit loss	17		4
Recovery of expected credit loss	(4)		(9)
Valuation allowance for expected credit losses - end of period	$	27	$	15
Held to maturity
Valuation allowance for expected credit losses - beginning of period	$	35	$	44
Recovery of expected credit loss	(1)		(1)
Valuation allowance for expected credit losses - end of period	$	34	$	43

d) Alternative investments

Alternative investments include partially-owned investment companies, investment funds, and limited partnerships measured at fair value using net asset value (NAV) as a practical expedient. The following table presents, by investment category, the expected liquidation period, fair value, and maximum future funding commitments of alternative investments:

	Expected Liquidation Period of Underlying Assets	March 31, 2022				December 31, 2021
(in millions of U.S. dollars)		Fair Value		Maximum Future Funding Commitments		Fair Value		Maximum Future Funding Commitments
Financial	2 to 10 Years	$	1,146	$	153	$	1,096	$	267
Real assets	2 to 13 Years	1,544		735		1,193		766
Distressed	2 to 8 Years	886		920		753		641
Private credit	3 to 8 Years	84		280		84		279
Traditional	2 to 14 Years	6,928		5,121		6,647		5,200
Vintage	1 to 2 Years	65		—		68		—
Investment funds	Not Applicable	294		—		267		—
		$	10,947	$	7,209	$	10,108	$	7,153

Included in all categories in the above table, except for Investment funds, are investments for which Chubb will never have the contractual option to redeem but receives distributions based on the liquidation of the underlying assets. Further, for all categories except for Investment funds, Chubb does not have the ability to sell or transfer the investments without the consent from the general partner of individual funds.

Investment Category:	Consists of investments in private equity funds:
Financial	targeting financial services companies, such as financial institutions and insurance services worldwide
Real assets	targeting investments related to hard physical assets, such as real estate, infrastructure and natural resources
Distressed	targeting distressed corporate debt/credit and equity opportunities in the U.S.
Private credit	targeting privately originated corporate debt investments, including senior secured loans and subordinated bonds
Traditional	employing traditional private equity investment strategies, such as buyout and growth equity globally
Vintage	funds where the initial fund term has expired

    

Investment funds employ various investment strategies, such as long/short equity and arbitrage/distressed. Included in this category are investments for which Chubb has the option to redeem at agreed upon value as described in each investment fund’s subscription agreement. Depending on the terms of the various subscription agreements, investment fund investments may be redeemed monthly, quarterly, semi-annually, or annually. If Chubb wishes to redeem an investment fund investment, it must first determine if the investment fund is still in a lock-up period (a time when Chubb cannot redeem its investment so that the investment fund manager has time to build the portfolio). If the investment fund is no longer in its lock-up period, Chubb must then notify the investment fund manager of its intention to redeem by the notification date prescribed by the subscription agreement. Subsequent to notification, the investment fund can redeem Chubb’s investment within several months of the notification. Notice periods for redemption of the investment funds are up to 270 days. Chubb can redeem its investment funds without consent from the investment fund managers.

e) Restricted assets

Chubb is required to maintain assets on deposit with various regulatory authorities to support its insurance and reinsurance operations. These requirements are generally promulgated in the statutory regulations of the individual jurisdictions. The assets on deposit are available to settle insurance and reinsurance liabilities. Chubb is also required to restrict assets pledged under repurchase agreements, which represent Chubb's agreement to sell securities and repurchase them at a future date for a predetermined price. We use trust funds in certain large reinsurance transactions where the trust funds are set up for the benefit of the ceding companies and generally take the place of letter of credit (LOC) requirements. We have investments in segregated portfolios primarily to provide collateral or guarantees for LOC and derivative transactions. Included in restricted assets at March 31, 2022 and December 31, 2021 are investments, primarily fixed maturities, totaling $15,954 million and $17,092 million, respectively, and cash of $180 million and $152 million, respectively.

The following table presents the components of restricted assets:

	March 31		December 31
(in millions of U.S. dollars)	2022		2021
Trust funds	$	8,785	$	9,915
Deposits with U.S. regulatory authorities	2,370		2,402
Deposits with non-U.S. regulatory authorities	2,802		2,873
Assets pledged under repurchase agreements	1,443		1,420
Other pledged assets	734		634
Total	$	16,134	$	17,244

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Fair value measurements

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Fair value measurements

Fair value measurements

a) Fair value hierarchy

Fair value of financial assets and financial liabilities is estimated based on the framework established in the fair value accounting guidance. The guidance defines fair value as the price to sell an asset or transfer a liability (an exit price) in an orderly transaction between market participants and establishes a three-level valuation hierarchy based on the reliability of the inputs. The fair value hierarchy gives the highest priority to quoted prices in active markets and the lowest priority to unobservable data.

The three levels of the hierarchy are as follows:

•Level 1 – Unadjusted quoted prices for identical assets or liabilities in active markets;

•Level 2 – Includes, among other items, inputs other than quoted prices that are observable for the asset or liability such as

interest rates and yield curves, quoted prices for similar assets and liabilities in active markets, and quoted prices for identical or similar assets and liabilities in markets that are not active; and

•Level 3 – Inputs that are unobservable and reflect management’s judgments about assumptions that market participants

would use in pricing an asset or liability.

We categorize financial instruments within the valuation hierarchy at the balance sheet date based upon the lowest level of inputs that are significant to the fair value measurement.

We use pricing services to obtain fair value measurements for the majority of our investment securities. Based on management’s understanding of the methodologies used, these pricing services only produce an estimate of fair value if there is observable market information that would allow them to make a fair value estimate. Based on our understanding of the market inputs used by the pricing services, all applicable investments have been valued in accordance with GAAP. We do not adjust prices obtained from pricing services. The following is a description of the valuation techniques and inputs used to determine fair values for financial instruments carried at fair value, as well as the general classification of such financial instruments pursuant to the valuation hierarchy.

Fixed maturities

We use pricing services to estimate fair value measurements for the majority of our fixed maturities. The pricing services use market quotations for fixed maturities that have quoted prices in active markets; such securities are classified within Level 1. For fixed maturities other than U.S. Treasury securities that generally do not trade on a daily basis, the pricing services prepare estimates of fair value measurements using their pricing applications or pricing models, which include available relevant market information, benchmark curves, benchmarking of like securities, sector groupings, and matrix pricing. Additional valuation factors that can be taken into account are nominal spreads, dollar basis, and liquidity adjustments. The pricing services evaluate each asset class based on relevant market and credit information, perceived market movements, and sector news. The market inputs used in the pricing evaluation, listed in the approximate order of priority include: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, reference data, and industry and economic events. The extent of the use of each input is dependent on the asset class and the market conditions. Given the asset class, the priority of the use of inputs may change, or some market inputs may not be relevant. Additionally, fixed maturities valuation is more subjective when markets are less liquid due to the lack of market based inputs (i.e., stale pricing) and may require the use of models to be priced. The lack of market based inputs may increase the potential that an investment's estimated fair value is not reflective of the price at which an actual transaction would occur. The overwhelming majority of fixed maturities are classified within Level 2 because the most significant inputs used in the pricing techniques are observable. For a small number of fixed maturities, we obtain a single broker quote (typically from a market maker). Due to the disclaimers on the quotes that indicate that the price is indicative only, we include these fair value estimates in Level 3. 

Equity securities

Equity securities with active markets are classified within Level 1 as fair values are based on quoted market prices. For equity securities in markets which are less active, fair values are based on market valuations and are classified within Level 2. Equity securities for which pricing is unobservable are classified within Level 3.

Short-term investments

Short-term investments, which comprise securities due to mature within one year of the date of purchase that are traded in active markets, are classified within Level 1 as fair values are based on quoted market prices. Securities such as commercial paper and discount notes are classified within Level 2 because these securities are typically not actively traded due to their approaching maturity, and as such, their cost approximates fair value. Short-term investments for which pricing is unobservable are classified within Level 3.

Other investments

Fair values for the majority of Other investments including investments in partially-owned investment companies, investment funds, and limited partnerships are based on their respective NAV and are excluded from the fair value hierarchy table below. Certain of our long-duration contracts are supported by assets that do not qualify for separate account reporting under GAAP. These assets comprise mutual funds, classified within Level 1 in the valuation hierarchy on the same basis as other equity securities traded in active markets. Other investments also include equity securities, classified within Level 1 and fixed maturities, classified within Level 2, held in rabbi trusts maintained by Chubb for deferred compensation plans and supplemental retirement plans and are classified within the valuation hierarchy on the same basis as other equity securities and fixed maturities.

Securities lending collateral

The underlying assets included in Securities lending collateral in the Consolidated balance sheets are fixed maturities which are classified in the valuation hierarchy on the same basis as other fixed maturities. Excluded from the valuation hierarchy is the corresponding liability related to Chubb’s obligation to return the collateral plus interest as it is reported at contract value and not fair value in the Consolidated balance sheets.

Investment derivative instruments

Actively traded investment derivative instruments, including futures, options, and forward contracts are classified within Level 1 as fair values are based on quoted market prices. The fair value of cross-currency swaps and interest rate swaps is based on market valuations and is classified within Level 2. Investment derivative instruments are recorded in either Other assets or Accounts payable, accrued expenses, and other liabilities in the Consolidated balance sheets.

Other derivative instruments

We maintain positions in exchange-traded equity futures contracts designed to limit exposure to a severe equity market decline, which would cause an increase in expected claims and, therefore, an increase in future policy benefit reserves for our guaranteed minimum death benefits (GMDB) and an increase in the fair value liability for our guaranteed living benefits (GLB) reinsurance business. Our positions in exchange-traded equity futures contracts are classified within Level 1. The fair value of the majority of the remaining positions in other derivative instruments is based on significant observable inputs including equity security and interest rate indices. Accordingly, these are classified within Level 2. Other derivative instruments based on unobservable inputs are classified within Level 3. Other derivative instruments are recorded in either Other assets or Accounts payable, accrued expenses, and other liabilities in the Consolidated balance sheets.

Separate account assets

Separate account assets represent segregated funds where investment risks are borne by the customers, except to the extent of certain guarantees made by Chubb. Separate account assets comprise mutual funds classified within Level 1 in the valuation hierarchy on the same basis as other equity securities traded in active markets. Separate account assets also include fixed maturities classified within Level 2 because the most significant inputs used in the pricing techniques are observable. Excluded from the valuation hierarchy are the corresponding liabilities as they are reported at contract value and not fair value in the Consolidated balance sheets. Separate account assets are recorded in Other assets in the Consolidated balance sheets.

Guaranteed living benefits

The GLB arises from life reinsurance programs covering living benefit guarantees whereby we assume the risk of guaranteed minimum income benefits (GMIB) associated with variable annuity contracts. GLBs are recorded in Accounts payable, accrued expenses, and other liabilities in the Consolidated balance sheets. For GLB reinsurance, Chubb estimates fair value using an internal valuation model which includes current market information and estimates of policyholder behavior. All of the treaties contain claim limits, which are factored into the valuation model. The fair value depends on a number of factors, including interest rates, equity markets, credit risk, current account value, market volatility, expected annuitization rates and other policyholder behavior, and changes in policyholder mortality. Because of the significant use of unobservable inputs including policyholder behavior, GLB reinsurance is classified within Level 3.

Financial instruments measured at fair value on a recurring basis, by valuation hierarchy

March 31, 2022	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury / Agency	$	1,562	$	540	$	—	$	2,102
Non-U.S.	—		24,166		618		24,784
Corporate and asset-backed securities	—		35,440		2,229		37,669
Mortgage-backed securities	—		19,785		20		19,805
Municipal	—		5,119		—		5,119
	1,562		85,050		2,867		89,479
Equity securities	3,514		—		82		3,596
Short-term investments	1,954		1,449		4		3,407
Other investments (1)	253		452		—		705
Securities lending collateral	—		1,800		—		1,800
Investment derivative instruments	163		—		—		163
Other derivative instruments	3		—		—		3
Separate account assets	5,468		92		—		5,560
Total assets measured at fair value (1)	$	12,917	$	88,843	$	2,953	$	104,713
Liabilities:
Investment derivative instruments	$	212	$	—	$	—	$	212
Other derivative instruments	63		—		—		63
GLB (2)	—		—		696		696
Total liabilities measured at fair value	$	275	$	—	$	696	$	971

(1)Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $10,947 million, policy loans of $244 million and other investments of $51 million at March 31, 2022 measured using NAV as a practical expedient.

(2)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

December 31, 2021	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury / Agency	$	1,680	$	534	$	—	$	2,214
Non-U.S.	—		25,196		633		25,829
Corporate and asset-backed securities	—		37,014		2,049		39,063
Mortgage-backed securities	—		20,463		26		20,489
Municipal	—		5,513		—		5,513
	1,680		88,720		2,708		93,108
Equity securities	4,705		—		77		4,782
Short-term investments	1,744		1,395		7		3,146
Other investments (1)	286		481		—		767
Securities lending collateral	—		1,831		—		1,831
Investment derivative instruments	58		—		—		58
Separate account assets	5,461		99		—		5,560
Total assets measured at fair value (1)	$	13,934	$	92,526	$	2,792	$	109,252
Liabilities:
Investment derivative instruments	$	166	$	—	$	—	$	166
Other derivative instruments	16		—		—		16
GLB (2)	—		—		745		745
Total liabilities measured at fair value	$	182	$	—	$	745	$	927

(1)Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $10,108 million, policy loans of $243 million and other investments of $51 million at December 31, 2021 measured using NAV as a practical expedient.

(2)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

Level 3 financial instruments

The following table presents the significant unobservable inputs used in the Level 3 liability valuations. Excluded from the table below are inputs used to determine the fair value of Level 3 assets which are based on single broker quotes and contain no quantitative unobservable inputs developed by management. The majority of our fixed maturities classified as Level 3 used external pricing when markets are less liquid due to the lack of market inputs (i.e., stale pricing, broker quotes).

(in millions of U.S. dollars, except for percentages)	Fair Value				Valuation Technique	Significant Unobservable Inputs	Ranges	Weighted Average (1)
	March 31, 2022		December 31, 2021
GLB (1)	$	696	$	745	Actuarial model	Lapse rate	3% – 31%	4.4	%
						Annuitization rate	0% – 100%	3.7	%

(1)The weighted-average lapse and annuitization rates are determined by weighting each treaty's rates by the GLB contracts fair value.

The most significant policyholder behavior assumptions include lapse rates and the GMIB annuitization rates. Assumptions regarding lapse rates and GMIB annuitization rates differ by treaty, but the underlying methodologies to determine rates applied to each treaty are comparable.

A lapse rate is the percentage of in-force policies surrendered in a given calendar year. All else equal, as lapse rates increase, ultimate claim payments will decrease.

The GMIB annuitization rate is the percentage of policies for which the policyholder will elect to annuitize using the guaranteed benefit provided under the GMIB. All else equal, as GMIB annuitization rates increase, ultimate claim payments will increase, subject to treaty claim limits.

The effect of changes in key market factors on assumed lapse and annuitization rates reflect emerging trends using data available from cedants. For treaties with limited experience, rates are established by blending the experience with data received from other ceding companies. The model and related assumptions are regularly re-evaluated by management and enhanced, as appropriate, based upon additional experience obtained related to policyholder behavior and availability of updated information such as market conditions, market participant assumptions, and demographics of in-force annuities. For the three months ended March 31, 2022 and 2021, no material refinements were made to the model. For detailed information on our lapse and annuitization rate assumptions, refer to Note 4 to the Consolidated Financial Statements of our 2021 Form 10-K.

The following tables present a reconciliation of the beginning and ending balances of financial instruments measured at fair value using significant unobservable inputs (Level 3):

	Assets										Liabilities
Three Months Ended March 31, 2022 (in millions of U.S. dollars)	Available-for-Sale Debt Securities						Equity securities		Short-term investments		GLB (1)
	Non-U.S.		Corporate and asset- backed securities		Mortgage-backed securities
Balance, beginning of period	$	633	$	2,049	$	26	$	77	$	7	$	745
Transfers into Level 3	18		29		—		1		—		—
Transfers out of Level 3	(23)		(50)		(5)		—		—		—
Change in Net Unrealized Gains/Losses in OCI	(13)		(22)		—		—		—		—
Net Realized Gains/Losses	(2)		—		—		4		—		(35)
Purchases	43		315		—		3		2		—
Sales	(6)		(27)		—		(3)		—		—
Settlements	(32)		(65)		(1)		—		(5)		—
Other	—		—		—		—		—		(14)
Balance, end of period	$	618	$	2,229	$	20	$	82	$	4	$	696
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date	$	(2)	$	—	$	—	$	4	$	—	$	(35)
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date	$	(13)	$	(22)	$	—	$	—	$	—	$	—

(1)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

	Assets												Liabilities
Three Months Ended March 31, 2021 (in millions of U.S. dollars)	Available-for-Sale Debt Securities						Equity securities		Short-term investments		Other investments		GLB (1)
	Non-U.S.		Corporate and asset- backed securities		Mortgage-backed securities
Balance, beginning of period	$	546	$	1,573	$	60	$	73	$	5	$	10	$	1,089
Transfers into Level 3	—		17		—		—		—		—		—
Change in Net Unrealized Gains/Losses in OCI	8		6		—		—		—		—		—
Net Realized Gains/Losses	—		(3)		—		2		—		—		(319)
Purchases	121		169		—		3		1		—		—
Sales	(7)		(25)		—		(3)		—		—		—
Settlements	(18)		(125)		(9)		—		(5)		—		—
Other	—		—		—		—		—		—		(10)
Balance, end of period	$	650	$	1,612	$	51	$	75	$	1	$	10	$	760
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date	$	—	$	(3)	$	—	$	2	$	—	$	—	$	(319)
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date	$	10	$	11	$	—	$	—	$	—	$	—	$	—

(1)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

b) Financial instruments disclosed, but not measured, at fair value

Chubb uses various financial instruments in the normal course of its business. Our insurance contracts are excluded from fair value of financial instruments accounting guidance, and therefore, are not included in the amounts discussed below.

The carrying values of cash, other assets, other liabilities, and other financial instruments not included below approximated their fair values. Refer to the 2021 Form 10-K for information on the fair value methods and assumptions for investments in partially-owned insurance companies, short-term and long-term debt, repurchase agreements, and trust-preferred securities.

The following tables present fair value, by valuation hierarchy, and carrying value of the financial instruments not measured at fair value:

March 31, 2022	Fair Value								Net Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury / Agency	$	1,126	$	48	$	—	$	1,174	$	1,180
Non-U.S.	—		1,191		—		1,191		1,180
Corporate and asset-backed securities	—		1,935		—		1,935		1,885
Mortgage-backed securities	—		1,684		—		1,684		1,689
Municipal	—		3,904		—		3,904		3,884
Total assets	$	1,126	$	8,762	$	—	$	9,888	$	9,818
Liabilities:
Repurchase agreements	$	—	$	1,406	$	—	$	1,406	$	1,406
Short-term debt	—		1,484		—		1,484		1,474
Long-term debt	—		14,702		—		14,702		14,585
Trust preferred securities	—		425		—		425		308
Total liabilities	$	—	$	18,017	$	—	$	18,017	$	17,773

December 31, 2021	Fair Value								Net Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury / Agency	$	1,192	$	52	$	—	$	1,244	$	1,213
Non-U.S.	—		1,262		—		1,262		1,196
Corporate and asset-backed securities	—		2,201		—		2,201		2,004
Mortgage-backed securities	—		1,803		—		1,803		1,730
Municipal	—		4,137		—		4,137		3,975
Total assets	$	1,192	$	9,455	$	—	$	10,647	$	10,118
Liabilities:
Repurchase agreements	$	—	$	1,406	$	—	$	1,406	$	1,406
Short-term debt	—		1,019		—		1,019		999
Long-term debt	—		16,848		—		16,848		15,169
Trust preferred securities	—		460		—		460		308
Total liabilities	$	—	$	19,733	$	—	$	19,733	$	17,882

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Reinsurance (Notes)

3 Months Ended

Mar. 31, 2022

Reinsurance Disclosures [Abstract]

Reinsurance [Text Block]

Reinsurance

Reinsurance recoverable on ceded reinsurance

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars)	Net Reinsurance Recoverable (1)		Valuation allowance		Net Reinsurance Recoverable (1)		Valuation allowance
Reinsurance recoverable on unpaid losses and loss expenses	$	16,646	$	276	$	16,184	$	271
Reinsurance recoverable on paid losses and loss expenses	1,115		53		1,182		58
Reinsurance recoverable on losses and loss expenses	$	17,761	$	329	$	17,366	$	329
Reinsurance recoverable on policy benefits	$	208	$	4	$	213	$	4

(1)Net of valuation allowance for uncollectible reinsurance.

The increase in reinsurance recoverable on losses and loss expenses was primarily due to unfavorable prior period development in certain lines and higher underlying ceded exposures due to premium growth.

The following table presents a roll-forward of valuation allowance for uncollectible reinsurance related to Reinsurance recoverable on loss and loss expenses:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Valuation allowance for uncollectible reinsurance - beginning of period	$	329	$	314
Provision for uncollectible reinsurance	3		3
Write-offs charged against the valuation allowance	(4)		—
Foreign exchange revaluation	1		—
Valuation allowance for uncollectible reinsurance - end of period	$	329	$	317

For additional information, refer to Note 1 d) to the Consolidated Financial Statements of our 2021 Form 10-K.

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Unpaid losses and loss expenses

3 Months Ended

Mar. 31, 2022

Liability for Claims and Claims Adjustment Expense [Abstract]

Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block]

Unpaid losses and loss expenses

The following table presents a reconciliation of beginning and ending Unpaid losses and loss expenses:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Gross unpaid losses and loss expenses – beginning of period	$	72,943	$	67,811
Reinsurance recoverable on unpaid losses – beginning of period (1)	(16,184)		(14,647)
Net unpaid losses and loss expenses – beginning of period	56,759		53,164
Net losses and loss expenses incurred in respect of losses occurring in:
Current year	5,192		5,249
Prior years (2)	(405)		(196)
Total	4,787		5,053
Net losses and loss expenses paid in respect of losses occurring in:
Current year	792		732
Prior years	3,569		3,161
Total	4,361		3,893
Foreign currency revaluation and other	13		71
Net unpaid losses and loss expenses – end of period	57,198		54,395
Reinsurance recoverable on unpaid losses (1)	16,646		14,860
Gross unpaid losses and loss expenses – end of period	$	73,844	$	69,255

(1)    Net of valuation allowance for uncollectible reinsurance.

(2)    Relates to prior period loss reserve development only and excludes prior period development related to reinstatement premiums, expense adjustments and earned premiums totaling $165 million and $4 million for the three months ended March 31, 2022 and 2021, respectively.

Gross and net unpaid losses and loss expenses increased $901 million and $439 million, respectively, for the three months ended March 31, 2022, driven by an increase in underlying exposure due to premium growth, partially offset by catastrophe loss payments, favorable prior period development, and crop activity.

Prior Period Development

Prior period development (PPD) arises from changes to loss estimates recognized in the current year that relate to loss events that occurred in previous calendar years and excludes the effect of losses from the development of earned premium from previous accident years. Long-tail lines include lines such as workers' compensation, general liability, and financial lines; while short-tail lines include lines such as most property lines, energy, personal accident, and agriculture.

The following table summarizes (favorable) and adverse PPD by segment.

	Three Months Ended March 31
(in millions of U.S. dollars)	Long-tail		Short-tail		Total
2022
North America Commercial P&C Insurance	$	(20)	$	(88)	$	(108)
North America Personal P&C Insurance	—		(51)		(51)
North America Agricultural Insurance	—		(26)		(26)
Overseas General Insurance	—		(60)		(60)
Global Reinsurance	—		(3)		(3)
Corporate	8		—		8
Total	$	(12)	$	(228)	$	(240)
2021
North America Commercial P&C Insurance	$	(46)	$	(81)	$	(127)
North America Personal P&C Insurance	—		(40)		(40)
North America Agricultural Insurance	—		(2)		(2)
Overseas General Insurance	—		(25)		(25)
Global Reinsurance	—		(7)		(7)
Corporate	9		—		9
Total	$	(37)	$	(155)	$	(192)

Significant prior period movements by segment, principally driven by reserve reviews completed during each respective period, are discussed in more detail below. The remaining net development for long-tail lines and short-tail business for each segment and Corporate comprises numerous favorable and adverse movements across a number of lines and accident years, none of which is significant individually or in the aggregate.

North America Commercial P&C Insurance

2022

For the three months ended March 31, 2022, net favorable PPD was $108 million, which was the net result of several underlying favorable and adverse movements, and was driven by the following principal changes:

•Net favorable development of $20 million in long-tail business, primarily from:

•Net favorable development of $38 million in workers’ compensation, mainly in accident years 2017 and prior, which were impacted by lower than expected loss emergence and related updates to loss development patterns;

•Net favorable development of $38 million in personal casualty business, mainly in accident years 2020 and 2021, which had lower than expected reported loss emergence and lower than expected loss frequency; and

•Net adverse development of $60 million in excess and umbrella portfolios, in accident years 2019 and prior, driven by higher than expected loss emergence.

•Net favorable development of $88 million in short-tail business, primarily from:

•Net favorable development of $76 million in A&H, in accident years 2020 and 2021, driven by lower than expected loss emergence;

•Net favorable development of $38 million in surety, mainly in accident year 2020, driven by lower than expected loss emergence; and

•Net adverse development of $21 million in small commercial property lines, mainly in accident year 2021, driven by higher than expected loss emergence.

2021

For the three months ended March 31, 2021, net favorable PPD was $127 million, which was the net result of several underlying favorable and adverse movements, and was driven by the following principal changes:

•Net favorable development of $46 million in long-tail business, primarily from:

•Net favorable development of $51 million in financial lines (errors & omissions and third-party cyber risk), in accident years 2016 and 2017, from lower than expected loss emergence, partly offset by higher than expected development in accident year 2019;

•Net favorable development of $35 million in voluntary environmental lines, in accident years 2017 and prior, from lower than expected loss emergence, partly offset by higher than expected development in accident year 2019; and

•Net adverse development of $57 million in excess and umbrella portfolios, with accident years 2015 through 2019 continuing to experience higher than expected loss development, partly offset by favorable development in accident years 2014 and prior.

•Net favorable development of $81 million in short-tail business, primarily from:

•Net favorable development of $49 million in surety, mainly in accident years 2018 and 2019, driven by lower than expected loss emergence;

•Net favorable development of $48 million in A&H, in accident years 2019 and 2020, where loss emergence was lower than expected;

•Net favorable development of $25 million in property and marine coverages in accident year 2020, driven by lower than expected non-catastrophe loss development; and

•Net adverse development of $41 million in first-party cyber risk, in accident years 2019 and 2020, which experienced higher than expected loss development as well as heightened frequency and severity.

North America Personal P&C Insurance

2022

For the three months ended March 31, 2022, net favorable PPD was $51 million, in accident year 2021, which experienced better than expected loss emergence in homeowners.

2021

For the three months ended March 31, 2021, net favorable PPD was $40 million, in accident year 2020, which experienced better than expected non-catastrophe loss emergence in homeowners and valuables.

North America Agricultural Insurance

2022

For the three months ended March 31, 2022, net favorable PPD was $26 million, mainly due to better than expected crop yield results related to the 2021 crop year.

Overseas General Insurance

2022

For the three months ended March 31, 2022, net favorable PPD was $60 million, across short-tail lines, mainly in accident years 2020 and 2021, primarily from:

•Net favorable development of $24 million in property lines driven by favorable loss emergence in Continental Europe; and

•Net favorable development of $22 million in A&H lines driven by favorable loss developments across all regions.

2021

For the three months ended March 31, 2021, net favorable PPD was $25 million, which reflects favorable loss experience across several lines, mainly in accident year 2020, none of which were significant individually or in the aggregate.

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Commitments, contingencies, and guarantees

3 Months Ended

Mar. 31, 2022

Commitments and Contingencies Disclosure [Abstract]

Commitments, contingencies, and guarantees

Commitments, contingencies, and guarantees

a) Derivative instruments

Foreign currency management

As a global company, Chubb entities transact business in multiple currencies. Our policy is to generally match assets, liabilities, and required capital for each individual jurisdiction in local currency, which would include the use of derivatives discussed below. We do not hedge our net asset non-U.S. dollar capital positions; however, we do consider economic hedging for planned cross border transactions.

Derivative instruments employed

Chubb maintains positions in derivative instruments such as futures, options, swaps, and foreign currency forward contracts for which the primary purposes are to manage duration and foreign currency exposure, yield enhancement, or to obtain an exposure to a particular financial market. Chubb also maintains positions in convertible securities that contain embedded derivatives. Investment derivative instruments are recorded in either Other assets (OA) or Accounts payable, accrued expenses, and other liabilities (AP); convertible bonds are recorded in Fixed maturities available for sale (FM AFS); and convertible equity securities are recorded in Equity securities (ES) in the Consolidated balance sheets. These are the most numerous and frequent derivative transactions. In addition, Chubb, from time to time, purchases to be announced mortgage-backed securities (TBAs) as part of its investing activities.

Under reinsurance programs covering GLBs, Chubb assumes the risk of GLBs, principally GMIB, associated with variable annuity contracts. The GMIB risk is triggered if, at the time the contract holder elects to convert the accumulated account value to a periodic payment stream (annuitize), the accumulated account value is not sufficient to provide a guaranteed minimum level of monthly income. The GLB reinsurance product meets the definition of a derivative instrument and is classified within AP. Chubb also generally maintains positions in exchange-traded equity futures contracts on equity market indices to limit equity exposure in the GMDB and GLB book of business.

All derivative instruments are carried at fair value with changes in fair value recorded in Net realized gains (losses) in the Consolidated statements of operations. None of the derivative instruments are designated as hedges for accounting purposes.

The following table presents the balance sheet locations, fair values of derivative instruments in an asset or (liability) position, and notional values/payment provisions of our derivative instruments:

				March 31, 2022						December 31, 2021
	Consolidated Balance Sheet Location	Fair Value				Notional Value/ Payment Provision		Fair Value				Notional Value/ Payment Provision
(in millions of U.S. dollars)		Derivative Asset		Derivative (Liability)				Derivative Asset		Derivative (Liability)
Investment and embedded derivative   instruments:
Foreign currency forward contracts	OA / (AP)	$	58	$	(154)	$	7,478	$	25	$	(139)	$	6,182
Options/Futures contracts on notes, bonds, and equities	OA / (AP)	105		(58)		9,282		33		(27)		12,944
Convertible securities (1)	FM AFS / ES	16		—		19		11		—		12
		$	179	$	(212)	$	16,779	$	69	$	(166)	$	19,138
Other derivative instruments:
Futures contracts on equities (2)	OA / (AP)	$	—	$	(63)	$	814	$	—	$	(16)	$	905
Other	OA / (AP)	3		—		79		—		—		3
		$	3	$	(63)	$	893	$	—	$	(16)	$	908
GLB (3)	(AP)	$	—	$	(696)	$	1,558	$	—	$	(745)	$	1,432

(1)Includes fair value of embedded derivatives.

(2)Related to GMDB and GLB book of business.

(3)Note that the payment provision related to GLB is the net amount at risk. The concept of a notional value does not apply to the GLB reinsurance contracts.

At March 31, 2022 and December 31, 2021, net derivative liabilities of $107 million and $123 million, respectively, included in the table above were subject to a master netting agreement. The remaining derivatives included in the table above were not subject to a master netting agreement.

The following table presents net realized gains (losses) related to derivative instrument activity in the Consolidated statements of operations:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Investment and embedded derivative instruments:
Foreign currency forward contracts	$	(54)	$	(16)
All other futures contracts, options, and equities	102		125
Convertible securities (1)	(1)		—
Total investment and embedded derivative instruments	$	47	$	109
GLB and other derivative instruments:
GLB	$	35	$	319
Futures contracts on equities (2)	42		(44)
Other	1		(1)
Total GLB and other derivative instruments	$	78	$	274
	$	125	$	383

(1)Includes embedded derivatives.

(2)Related to GMDB and GLB book of business.

b) Derivative instrument objectives

(i) Foreign currency exposure management

A foreign currency forward contract (forward) is an agreement between participants to exchange specific currencies at a future date. Chubb uses forwards to minimize the effect of fluctuating foreign currencies as discussed above.

(ii) Duration management and market exposure

Futures

Futures contracts give the holder the right and obligation to participate in market movements, determined by the index or underlying security on which the futures contract is based. Settlement is made daily in cash by an amount equal to the change in value of the futures contract times a multiplier that scales the size of the contract. Exchange-traded futures contracts on money market instruments, notes and bonds are used in fixed maturity portfolios to more efficiently manage duration, as substitutes for ownership of the money market instruments, bonds and notes without significantly increasing the risk in the portfolio. Investments in futures contracts may be made only to the extent that there are assets under management not otherwise committed.

Exchange-traded equity futures contracts are used to limit exposure to a severe equity market decline, which would cause an increase in expected claims and therefore, an increase in future policy benefit reserves for GMDB and an increase in the fair value liability for GLB reinsurance business.

Options

An option contract conveys to the holder the right, but not the obligation, to purchase or sell a specified amount or value of an underlying security at a fixed price. Option contracts are used in our investment portfolio as protection against unexpected shifts in interest rates, which would affect the duration of the fixed maturity portfolio. By using options in the portfolio, the overall interest rate sensitivity of the portfolio can be reduced. Option contracts may also be used as an alternative to futures contracts in the synthetic strategy as described above.

The price of an option is influenced by the underlying security, level of interest rates, expected volatility, time to expiration, and supply and demand.

The credit risk associated with the above derivative financial instruments relates to the potential for non-performance by counterparties. Although non-performance is not anticipated, in order to minimize the risk of loss, management monitors the creditworthiness of its counterparties and obtains collateral. The performance of exchange-traded instruments is guaranteed by the exchange on which they trade. For non-exchange-traded instruments, the counterparties are principally banks which must meet certain criteria according to our investment guidelines.

Other

Included within Other are derivatives intended to reduce potential losses which may arise from certain exposures in our insurance business. The economic benefit provided by these derivatives is similar to purchased reinsurance. For example, Chubb may enter into crop derivative contracts to protect underwriting results in the event of a significant decline in commodity prices.

(iii) Convertible security investments

A convertible security is a debt instrument or preferred stock that can be converted into a predetermined amount of the issuer’s equity. The convertible option is an embedded derivative within the host instruments which are classified in the investment portfolio as either available for sale or as an equity security. Chubb purchases convertible securities for their total return and not specifically for the conversion feature.

(iv) TBA

By acquiring TBAs, we make a commitment to purchase a future issuance of mortgage-backed securities. For the period between purchase of the TBAs and issuance of the underlying security, we account for our position as a derivative in the Consolidated Financial Statements. Chubb purchases TBAs, from time to time, both for their total return and for the flexibility they provide related to our mortgage-backed security strategy.

(v) GLB

Under the GLB program, as the assuming entity, Chubb is obligated to provide coverage until the expiration or maturity of the underlying deferred annuity contracts or the expiry of the reinsurance treaty. The GLB is accounted for as a derivative and is recorded at fair value. Fair value represents management’s estimate of an exit price and thus, includes a risk margin. We may recognize a realized loss for other changes in fair value due to adverse changes in the capital markets (e.g., declining interest rates and/or declining U.S. and/or international equity markets) and changes in actual or estimated future policyholder behavior (e.g., increased annuitization or decreased lapse rates) although we expect the business to be profitable.

To mitigate adverse changes in the capital markets, we maintain positions in exchange-traded equity futures contracts, as noted under section "(ii) Futures" above. These futures increase in fair value when the S&P 500 index decreases (and decrease in fair

value when the S&P 500 index increases). The net impact of gains or losses related to changes in fair value of the GLB liability and the exchange-traded equity futures are included in Net realized gains (losses).

c) Securities lending and secured borrowings

Chubb participates in a securities lending program operated by a third-party banking institution whereby certain assets are loaned to qualified borrowers and from which we earn an incremental return. The securities lending collateral can only be drawn down by Chubb in the event that the institution borrowing the securities is in default under the lending agreement. An indemnification agreement with the lending agent protects us in the event a borrower becomes insolvent or fails to return any of the securities on loan. The collateral is recorded in Securities lending collateral and the liability is recorded in Securities lending payable in the Consolidated balance sheets.

The following table presents the carrying value of collateral held under securities lending agreements by investment category and remaining contractual maturity of the underlying agreements:

	Remaining contractual maturity
	March 31, 2022		December 31, 2021
(in millions of U.S. dollars)	Overnight and Continuous
Collateral held under securities lending agreements:
Cash	$	1,000	$	931
U.S. Treasury / Agency	106		128
Non-U.S.	663		752
Corporate and asset-backed securities	23		12
Mortgage-backed securities	—		1
Equity securities	8		7
	$	1,800	$	1,831
Gross amount of recognized liability for securities lending payable	$	1,800	$	1,831

At March 31, 2022 and December 31, 2021, our repurchase agreement obligations of $1,406 million were fully collateralized. In contrast to securities lending programs, the use of cash received is not restricted for the repurchase obligations. The fair value of the underlying securities sold remains in Fixed maturities available for sale, and the repurchase agreement obligation is recorded in Repurchase agreements in the Consolidated balance sheets.  

The following table presents the carrying value of collateral pledged under repurchase agreements by investment category and remaining contractual maturity of the underlying agreements:

	Remaining contractual maturity
	March 31, 2022								December 31, 2021
	Up to 30 Days		30-90 Days		Greater than 90 Days		Total		30-90 Days		Greater than 90 Days		Total
(in millions of U.S. dollars)
Collateral pledged under repurchase agreements:
Cash	$	43	$	—	$	—	$	43	$	—	$	29	$	29
U.S. Treasury / Agency	—		—		102		102		103		—		103
Mortgage-backed securities	358		466		474		1,298		—		1,288		1,288
	$	401	$	466	$	576	$	1,443	$	103	$	1,317	$	1,420
Gross amount of recognized liabilities for repurchase agreements							$	1,406					$	1,406
Difference (1)							$	37					$	14

(1)Per the repurchase agreements, the amount of collateral posted is required to exceed the amount of gross liability.

Potential risks exist in our secured borrowing transactions due to market conditions and counterparty exposure. With collateral that we pledge, there is a risk that the collateral may not be returned at the expiration of the agreement. If the counterparty fails to return the collateral, Chubb will have free use of the borrowed funds until our collateral is returned. In addition, we may encounter the risk that Chubb may not be able to renew outstanding borrowings with a new term or with an existing counterparty due to market conditions including a decrease in demand as well as more restrictive terms from banks due to increased regulatory and capital constraints. Should this condition occur, Chubb may seek alternative borrowing sources or reduce borrowings. Additionally, increased margins and collateral requirements due to market conditions would increase our restricted assets as we are required to provide additional collateral to support the transaction.

d) Fixed maturities

At March 31, 2022, we have commitments to purchase fixed income securities of $622 million over the next several years.

e) Other investments

At March 31, 2022, included in Other investments in the Consolidated balance sheet are investments in limited partnerships and partially-owned investment companies with a carrying value of $10.7 billion. In connection with these investments, we have commitments that may require funding of up to $7.2 billion over the next several years. At December 31, 2021, these investments had a carrying value of $9.8 billion with a commitment that may require funding of up to $7.2 billion.

f) Income taxes

At March 31, 2022, $64 million of unrecognized tax benefits remain outstanding. It is reasonably possible that, over the next twelve months, the amount of unrecognized tax benefits may change resulting from the re-evaluation of unrecognized tax benefits arising from examinations by taxing authorities, settlements and the lapses of statutes of limitations. With few exceptions, Chubb is no longer subject to income tax examinations for years before 2012.

g) Legal proceedings

Our insurance subsidiaries are subject to claims litigation involving disputed interpretations of policy coverages and, in some jurisdictions, direct actions by allegedly-injured persons seeking damages from policyholders. These lawsuits, involving claims on policies issued by our subsidiaries which are typical to the insurance industry in general and in the normal course of business, are considered in our loss and loss expense reserves. In addition to claims litigation, we are subject to lawsuits and regulatory actions in the normal course of business that do not arise from or directly relate to claims on insurance policies. This category of business litigation typically involves, among other things, allegations of underwriting errors or misconduct, employment claims, regulatory activity, or disputes arising from our business ventures. In the opinion of management, our ultimate liability for these matters could be, but we believe is not likely to be, material to our consolidated financial condition and results of operations.

h) Lease commitments

At March 31, 2022, and December 31, 2021, the right-of-use asset was $437 million and $445 million, respectively, recorded within Other assets and the lease liability was $470 million and $484 million, respectively, recorded within Accounts payable, accrued expenses, and other liabilities on the Consolidated balance sheets. These leases consist principally of real estate operating leases that are amortized on a straight-line basis over the term of the lease, which expire at various dates.

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Shareholders' equity

3 Months Ended

Mar. 31, 2022

Stockholders' Equity Note [Abstract]

Shareholders' equity

Shareholders’ equity

All of Chubb’s Common Shares are authorized under Swiss corporate law. Though the par value of Common Shares is stated in Swiss francs, Chubb continues to use U.S. dollars as its reporting currency for preparing the Consolidated Financial statements. Under Swiss corporate law, dividends, including distributions from legal reserves or through a reduction in par value (par value reduction), must be stated in Swiss francs though dividend payments are made by Chubb in U.S. dollars. At March 31, 2022, our Common Shares had a par value of CHF 24.15 per share.

At our May 2021 and 2020 annual general meeting, our shareholders approved annual dividends for the following year of up to $3.20 per share and $3.12 per share, respectively, which were paid in four quarterly installments of $0.80 per share and $0.78 per share, respectively, at dates determined by the Board of Directors (Board) after the annual general meetings by way of a distribution from capital contribution reserves, transferred to free reserves for payment.

Dividend distributions per Common Share for the three months ended March 31, 2022 and 2021 were $0.80 (CHF 0.74) and $0.78 (CHF 0.70), respectively.

Increases in Common Shares in treasury are due to open market repurchases of Common Shares and the surrender of Common Shares to satisfy tax withholding obligations in connection with the vesting of restricted stock and the forfeiture of unvested restricted stock. Decreases in Common Shares in treasury are principally due to grants of restricted stock, exercises of stock options, purchases under the Employee Stock Purchase Plan (ESPP), and share cancellations. At the Chubb Limited Extraordinary General Meeting of Shareholders, held on November 3, 2021, shareholders approved the cancellation of 14,465,400 shares repurchased under our share repurchase program during the first six months of 2021. The capital reduction by cancellation of shares was subject to publication requirements and a two-month waiting period in accordance with Swiss law and became effective on January 17, 2022. During the three months ended March 31, 2022, 4,869,900 shares were repurchased, 14,465,400 shares were canceled, and 1,972,615 net shares were issued under employee share-based compensation plans. At March 31, 2022, 35,880,387 Common Shares remain in treasury.

Chubb Limited securities repurchase authorizations

The Board has authorized share repurchase programs as follows:

•$1.5 billion of Chubb Common Shares from November 19, 2020 through December 31, 2021;

•$1.0 billion increase to the November 2020 share repurchase program to a total of $2.5 billion in February 2021, effective through December 31, 2021; and

•One-time incremental share repurchase program of $5.0 billion of Chubb Common Shares from July 19, 2021 through June 30, 2022.

The following table presents repurchases of Chubb's Common Shares conducted in a series of open market transactions under the Board authorizations:

	Three Months Ended				April 1, 2022 through April 28, 2022
			March 31
(in millions of U.S. dollars, except share data)	2022		2021
Number of shares repurchased	4,869,900		3,110,000		115,000
Cost of shares repurchased	$	1,001	$	519	$	24
Repurchase authorization remaining at end of period	$	1,648	$	1,982	$	1,624

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Share-based compensation	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
Share-based compensation	Share-based compensationThe Chubb Limited 2016 Long-Term Incentive Plan, as amended and restated (the Amended 2016 LTIP), permits grants of both incentive and non-qualified stock options principally at an option price per share equal to the grant date fair value of Chubb's Common Shares. Stock options are generally granted with a 3-year vesting period and a 10-year term. Stock options typically vest in equal annual installments over the respective vesting period, which is also the requisite service period. On February 24, 2022, Chubb granted 1,702,679 stock options with a weighted-average grant date fair value of $35.21 each. The fair value of the options issued is estimated on the grant date using the Black-Scholes option pricing model.The Amended 2016 LTIP also permits grants of service-based restricted stock and restricted stock units as well as performance-based restricted stock awards. Chubb generally grants service-based restricted stock and restricted stock units with a 4-year vesting period, based on a graded vesting schedule. The performance-based restricted stock awards granted comprise target awards and premium awards that cliff vest at the end of a 3-year performance period based on both tangible book value (shareholders' equity less goodwill and intangible assets, net of tax) per share growth and P&C combined ratio compared to a defined group of peer companies. Premium awards are subject to an additional vesting provision based on total shareholder return compared to our peer group. The restricted stock is principally granted at market close price on the grant date. On February 24, 2022, Chubb granted 809,644 service-based restricted stock awards, 295,195 service-based restricted stock units, and 294,229 performance-based stock awards to employees and officers with a grant date fair value of $199.03 each. Each restricted stock unit represents our obligation to deliver to the holder one Common Share upon vesting.

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Postretirement benefits

3 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

Compensation and Employee Benefit Plans [Text Block]

Postretirement benefits

The components of net pension and other postretirement benefit costs (benefits) reflected in Net income in the Consolidated statements of operations were as follows:

	Pension Benefit Plans								Other Postretirement Benefit Plans
	2022				2021				2022		2021
Three Months Ended March 31	U.S. Plans		Non-U.S. Plans		U.S. Plans		Non-U.S. Plans
(in millions of U.S. dollars)
Service cost	$	—	$	1	$	—	$	1	$	—	$	—
Non-service cost (benefit):
Interest cost	21		6		18		5		—		—
Expected return on plan assets	(71)		(11)		(64)		(11)		—		—
Amortization of net actuarial loss	—		—		—		1		—		—
Amortization of prior service cost	—		—		—		—		—		(20)
Settlements	—		—		—		—		—		—
Total non-service cost (benefit)	(50)		(5)		(46)		(5)		—		(20)
Net periodic benefit cost (benefit)	$	(50)	$	(4)	$	(46)	$	(4)	$	—	$	(20)

The line items in which the service cost and non-service cost (benefit) components of net periodic benefit cost (benefit) are included in the Consolidated statements of operations were as follows:

	Pension Benefit Plans				Other Postretirement Benefit Plans
Three Months Ended March 31	2022		2021		2022		2021
(in millions of U.S. dollars)
Service cost:
Losses and loss expenses	$	—	$	—	$	—	$	—
Administrative expenses	1		1		—		—
Total service cost	1		1		—		—
Non-service cost (benefit):
Losses and loss expenses	(5)		(5)		—		(2)
Administrative expenses	(50)		(46)		—		(18)
Total non-service cost (benefit)	(55)		(51)		—		(20)
Net periodic benefit cost (benefit)	$	(54)	$	(50)	$	—	$	(20)

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Other Income and Expenses

3 Months Ended

Mar. 31, 2022

Other Income and Expenses [Abstract]

Other Income and Other Expense Disclosure

Other income and expense

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Equity in net income of partially-owned entities (1)	$	361	$	497
Gains (losses) from fair value changes in separate account assets (2)	(31)		4
Federal excise and capital taxes	(4)		(5)
Other	(16)		(6)
Total	$	310	$	490

(1)     Equity in net income of partially-owned entities includes $40 million and $49 million attributable to our investments in Huatai (Huatai Group, Huatai P&C, and Huatai Life) for the three months ended March 31, 2022 and 2021, respectively.

(2)     Related to gains (losses) from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP.

Other income and expense includes equity in net income of partially-owned entities, which includes our share of net income or loss, both underlying operating income and mark-to-market movement, related to partially-owned investment companies (private equity) and partially-owned insurance companies. Also included in Other income and expense are gains (losses) from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP. The offsetting movement in the separate account liabilities is included in Policy benefits in the Consolidated statements of operations. Certain federal excise and capital taxes incurred as a result of capital management initiatives are included in Other income and expense as these are considered capital transactions and are excluded from underwriting results. Bad debt expense for uncollectible premiums is also included in Other income and expense.

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Segment information

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Segment information

Segment information

Chubb operates through six business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. Corporate results primarily include income and expenses not attributable to reportable segments and losses and loss expenses of asbestos and environmental (A&E) liabilities and certain other non-A&E run-off exposures.

Management uses underwriting income (loss) as the basis for segment performance. Chubb calculates underwriting income (loss) by subtracting Losses and loss expenses, Policy benefits, Policy acquisition costs, and Administrative expenses from Net premiums earned. Segment income (loss) includes underwriting income (loss), net investment income (loss), and other operating income and expense items such as each segment's share of the operating income (loss) related to partially-owned entities and miscellaneous income and expense items for which the segments are held accountable. Our main measure of segment performance is Segment income (loss), which also includes amortization of purchased intangibles acquired by the segment. We determined that this definition of segment income (loss) is appropriate and aligns with how the business is managed. We continue to evaluate our segments as our business continues to evolve and may further refine our segments and segment income (loss) measures. Certain items are presented in a different manner for segment reporting purposes than in the Consolidated Financial Statements. These items are reconciled to the consolidated presentation in the Segment measure reclass column below and include:

•Losses and loss expenses include realized gains and losses on crop derivatives. These derivatives were purchased to provide economic benefit, in a manner similar to reinsurance protection, in the event that a significant decline in commodity pricing impacts underwriting results. We view gains and losses on these derivatives as part of the results of our underwriting operations, and therefore realized gains (losses) from these derivatives are reclassified to losses and loss expenses.

•Policy benefits include fair value changes on separate accounts that do not qualify for separate accounting under GAAP. These gains and losses have been reclassified from Other (income) expense. We view gains and losses from fair value changes in both separate account assets and liabilities as part of the results of our underwriting operations, and therefore these gains and losses are reclassified to policy benefits.

•Net investment income includes investment income reclassified from Other (income) expense related to partially-owned investment companies (private equity partnerships) where our ownership interest is in excess of three percent. We view investment income from these equity-method private equity partnerships as net investment income for segment reporting purposes.

The following tables present the Statement of Operations by segment:

For the Three Months Ended March 31, 2022 (in millions of U.S. dollars)	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance		Global Reinsurance		Life Insurance		Corporate		Segment Measure Reclass		Chubb Consolidated
Net premiums written	$	4,039	$	1,180	$	62	$	3,079	$	253	$	586	$	—	$	—	$	9,199
Net premiums earned	4,114		1,247		(29)		2,628		235		551		—		—		8,746
Losses and loss expenses	2,497		713		(92)		1,389		115		154		10		1		4,787
Policy benefits	—		—		—		—		—		176		—		(31)		145
Policy acquisition costs	573		260		12		679		62		151		—		—		1,737
Administrative expenses	265		69		(1)		269		9		84		83		—		778
Underwriting income (loss)	779		205		52		291		49		(14)		(93)		30		1,299
Net investment income (loss)	489		59		7		147		85		103		(5)		(63)		822
Other (income) expense	6		1		—		2		—		(28)		(259)		(32)		(310)
Amortization expense of    purchased intangibles	—		2		7		14		—		2		46		—		71
Segment income	$	1,262	$	261	$	52	$	422	$	134	$	115	$	115	$	(1)	$	2,360
Net realized gains (losses)													100		1		101
Interest expense													132		—		132
Income tax expense													355		—		355
Net income (loss)													$	(272)	$	—	$	1,974

For the Three Months Ended March 31, 2021 (in millions of U.S. dollars)	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance		Global Reinsurance		Life Insurance		Corporate		Segment Measure Reclass		Chubb Consolidated
Net premiums written	$	3,664	$	1,098	$	183	$	2,890	$	207	$	620	$	—	$	—	$	8,662
Net premiums earned	3,674		1,184		110		2,478		180		595		—		—		8,221
Losses and loss expenses	2,560		819		85		1,263		120		198		9		(1)		5,053
Policy benefits	—		—		—		—		—		163		—		4		167
Policy acquisition costs	514		247		12		668		45		179		—		—		1,665
Administrative expenses	254		60		3		266		8		82		71		—		744
Underwriting income (loss)	346		58		10		281		7		(27)		(80)		(3)		592
Net investment income (loss)	540		65		7		141		70		98		(17)		(41)		863
Other (income) expense	2		1		—		1		—		(34)		(415)		(45)		(490)
Amortization expense of    purchased intangibles	—		3		7		12		—		1		49		—		72
Segment income	$	884	$	119	$	10	$	409	$	77	$	104	$	269	$	1	$	1,873
Net realized gains (losses)													888		(1)		887
Interest expense													122		—		122
Income tax expense													338		—		338
Net income													$	697	$	—	$	2,300

Underwriting assets are reviewed in total by management for purposes of decision-making. Other than Unpaid losses and loss expenses, Future policy benefits, Reinsurance recoverables, Goodwill and Other intangible assets, Chubb does not allocate assets to its segments.

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Earnings per share

3 Months Ended

Mar. 31, 2022

Earnings Per Share [Abstract]

Earnings per share

Earnings per share

	Three Months Ended
	March 31
(in millions of U.S. dollars, except share and per share data)	2022		2021
Numerator:
Net income	$	1,974	$	2,300
Denominator:
Denominator for basic earnings per share:
Weighted-average shares outstanding	425,805,105		450,539,568
Denominator for diluted earnings per share:
Share-based compensation plans	3,985,729		2,795,971
Weighted-average shares outstanding and assumed conversions	429,790,834		453,335,539
Basic earnings per share	$	4.64	$	5.10
Diluted earnings per share	$	4.59	$	5.07
Potential anti-dilutive share conversions	681,032		1,952,612

Excluded from weighted-average shares outstanding and assumed conversions is the impact of securities that would have been anti-dilutive during the respective periods. These securities consisted of stock options in which the underlying exercise prices were greater than the average market prices of our Common Shares. Refer to Note 12 to the Consolidated Financial Statements of our 2021 Form 10-K for additional information on stock options.

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General (Policies)

3 Months Ended

Mar. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of presentation

Basis of presentation

Chubb Limited is a holding company incorporated in Zurich, Switzerland. Chubb Limited, through its subsidiaries, provides a broad range of insurance and reinsurance products to insureds worldwide. Our results are reported through the following business segments: North America Commercial P&C Insurance, North America Personal P&C Insurance, North America Agricultural Insurance, Overseas General Insurance, Global Reinsurance, and Life Insurance. Refer to Note 12 for additional information.

The interim unaudited consolidated financial statements, which include the accounts of Chubb Limited and its subsidiaries (collectively, Chubb, we, us, or our), have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) and, in the opinion of management, reflect all adjustments necessary for a fair statement of the results and financial position for such periods. All significant intercompany accounts and transactions, including internal reinsurance transactions, have been eliminated.

The results of operations and cash flows for any interim period are not necessarily indicative of the results for the full year. These consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our 2021 Form 10-K.

Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]

Restricted cash

Restricted cash in the Consolidated balance sheets represents amounts held for the benefit of third parties and is legally or contractually restricted as to withdrawal or usage. Amounts include deposits with U.S. and non-U.S. regulatory authorities, trust funds set up for the benefit of ceding companies, and amounts pledged as collateral to meet financing arrangements.

The following table provides a reconciliation of cash and restricted cash reported within the Consolidated balance sheets that total to the amounts shown in the Consolidated statements of cash flows:

	March 31		December 31
(in millions of U.S. dollars)	2022		2021
Cash	$	1,734	$	1,659
Restricted cash	180		152
Total cash and restricted cash shown in the Consolidated statements of cash flows	$	1,914	$	1,811

Accounting guidance not yet adopted

Accounting guidance not yet adopted

Targeted Improvements to the Accounting for Long-Duration Contracts

In August 2018, the FASB issued guidance to improve the existing recognition, measurement, presentation, and disclosure requirements for long-duration contracts issued by an insurance entity. The amendments in this update require more frequent updating of assumptions and a standardized discount rate for the future policy benefit liability, a requirement to use the fair value measurement model for policies with market risk benefits, simplified amortization of deferred acquisition costs, and enhanced disclosures. This standard will be effective in the first quarter of 2023 with early adoption permitted. We are currently assessing the effect of adopting this guidance on our financial condition and results of operations. We will be better able to quantify the effect of adopting this standard as we progress in our implementation process and draw nearer to the date of adoption.

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Fair value measurements Fair Value Measurement Policy (Policies)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Fair Value Measurement, Policy [Policy Text Block]

Fair value of financial assets and financial liabilities is estimated based on the framework established in the fair value accounting guidance. The guidance defines fair value as the price to sell an asset or transfer a liability (an exit price) in an orderly transaction between market participants and establishes a three-level valuation hierarchy based on the reliability of the inputs. The fair value hierarchy gives the highest priority to quoted prices in active markets and the lowest priority to unobservable data.

The three levels of the hierarchy are as follows:

•Level 1 – Unadjusted quoted prices for identical assets or liabilities in active markets;

•Level 2 – Includes, among other items, inputs other than quoted prices that are observable for the asset or liability such as

interest rates and yield curves, quoted prices for similar assets and liabilities in active markets, and quoted prices for identical or similar assets and liabilities in markets that are not active; and

•Level 3 – Inputs that are unobservable and reflect management’s judgments about assumptions that market participants

would use in pricing an asset or liability.

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General General (Tables)

3 Months Ended

Mar. 31, 2022

Cash and Cash Equivalents [Abstract]

Schedule of Cash and Cash Equivalents [Table Text Block]

The following table provides a reconciliation of cash and restricted cash reported within the Consolidated balance sheets that total to the amounts shown in the Consolidated statements of cash flows:

	March 31		December 31
(in millions of U.S. dollars)	2022		2021
Cash	$	1,734	$	1,659
Restricted cash	180		152
Total cash and restricted cash shown in the Consolidated statements of cash flows	$	1,914	$	1,811

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Investments (Tables)

3 Months Ended

Mar. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule Of Amortized Cost and Fair Value of Available-for-sale Securities

March 31, 2022	Amortized Cost		Valuation Allowance		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
(in millions of U.S. dollars)
Available for sale
U.S. Treasury / Agency	$	2,111	$	—	$	31	$	(40)	$	2,102
Non-U.S.	25,304		(16)		380		(884)		24,784
Corporate and asset-backed securities	38,469		(11)		360		(1,149)		37,669
Mortgage-backed securities	20,511		—		90		(796)		19,805
Municipal	5,131		—		49		(61)		5,119
	$	91,526	$	(27)	$	910	$	(2,930)	$	89,479
	Amortized Cost		Valuation Allowance		Net Carrying Value		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
Held to maturity
U.S. Treasury / Agency	$	1,180	$	—	$	1,180	$	12	$	(18)	$	1,174
Non-U.S.	1,185		(5)		1,180		19		(8)		1,191
Corporate and asset-backed securities	1,913		(28)		1,885		56		(6)		1,935
Mortgage-backed securities	1,689		—		1,689		8		(13)		1,684
Municipal	3,885		(1)		3,884		24		(4)		3,904
	$	9,852	$	(34)	$	9,818	$	119	$	(49)	$	9,888

December 31, 2021	Amortized Cost		Valuation Allowance		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
(in millions of U.S. dollars)
Available for sale
U.S. Treasury / Agency	$	2,111	$	—	$	109	$	(6)	$	2,214
Non-U.S.	25,156		(8)		953		(272)		25,829
Corporate and asset-backed securities	37,844		(6)		1,410		(185)		39,063
Mortgage-backed securities	20,080		—		532		(123)		20,489
Municipal	5,302		—		216		(5)		5,513
	$	90,493	$	(14)	$	3,220	$	(591)	$	93,108
	Amortized Cost		Valuation Allowance		Net Carrying Value		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
Held to maturity
U.S. Treasury / Agency	$	1,213	$	—	$	1,213	$	34	$	(3)	$	1,244
Non-U.S.	1,201		(5)		1,196		66		—		1,262
Corporate and asset-backed securities	2,032		(28)		2,004		197		—		2,201
Mortgage-backed securities	1,731		(1)		1,730		74		(1)		1,803
Municipal	3,976		(1)		3,975		162		—		4,137
	$	10,153	$	(35)	$	10,118	$	533	$	(4)	$	10,647

Schedule Of Amortized Cost And Fair Value Of HTM Fixed Maturities

March 31, 2022	Amortized Cost		Valuation Allowance		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
(in millions of U.S. dollars)
Available for sale
U.S. Treasury / Agency	$	2,111	$	—	$	31	$	(40)	$	2,102
Non-U.S.	25,304		(16)		380		(884)		24,784
Corporate and asset-backed securities	38,469		(11)		360		(1,149)		37,669
Mortgage-backed securities	20,511		—		90		(796)		19,805
Municipal	5,131		—		49		(61)		5,119
	$	91,526	$	(27)	$	910	$	(2,930)	$	89,479
	Amortized Cost		Valuation Allowance		Net Carrying Value		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
Held to maturity
U.S. Treasury / Agency	$	1,180	$	—	$	1,180	$	12	$	(18)	$	1,174
Non-U.S.	1,185		(5)		1,180		19		(8)		1,191
Corporate and asset-backed securities	1,913		(28)		1,885		56		(6)		1,935
Mortgage-backed securities	1,689		—		1,689		8		(13)		1,684
Municipal	3,885		(1)		3,884		24		(4)		3,904
	$	9,852	$	(34)	$	9,818	$	119	$	(49)	$	9,888

December 31, 2021	Amortized Cost		Valuation Allowance		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
(in millions of U.S. dollars)
Available for sale
U.S. Treasury / Agency	$	2,111	$	—	$	109	$	(6)	$	2,214
Non-U.S.	25,156		(8)		953		(272)		25,829
Corporate and asset-backed securities	37,844		(6)		1,410		(185)		39,063
Mortgage-backed securities	20,080		—		532		(123)		20,489
Municipal	5,302		—		216		(5)		5,513
	$	90,493	$	(14)	$	3,220	$	(591)	$	93,108
	Amortized Cost		Valuation Allowance		Net Carrying Value		Gross Unrealized Appreciation		Gross Unrealized Depreciation		Fair Value
Held to maturity
U.S. Treasury / Agency	$	1,213	$	—	$	1,213	$	34	$	(3)	$	1,244
Non-U.S.	1,201		(5)		1,196		66		—		1,262
Corporate and asset-backed securities	2,032		(28)		2,004		197		—		2,201
Mortgage-backed securities	1,731		(1)		1,730		74		(1)		1,803
Municipal	3,976		(1)		3,975		162		—		4,137
	$	10,153	$	(35)	$	10,118	$	533	$	(4)	$	10,647

Debt Securities, Held-to-maturity, Credit Quality Indicator [Table Text Block]

The following table presents the amortized cost of our HTM securities according to S&P rating:

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars, except for percentages)	Amortized cost		% of Total		Amortized cost		% of Total
AAA	$	2,021	21	%	$	2,089	21	%
AA	5,210		52	%	5,303		52	%
A	1,922		20	%	1,964		19	%
BBB	676		7	%	773		8	%
BB	23		—	%	23		—	%
Other	—		—	%	1		—	%
Total	$	9,852	100	%	$	10,153	100	%

Schedule Of Fixed Maturities By Contractual Maturity

The following table presents fixed maturities by contractual maturity:

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars)	Net Carrying Value		Fair Value		Net Carrying Value		Fair Value
Available for sale
Due in 1 year or less	$	4,393	$	4,393	$	4,498	$	4,498
Due after 1 year through 5 years	25,136		25,136		25,542		25,542
Due after 5 years through 10 years	27,033		27,033		28,207		28,207
Due after 10 years	13,112		13,112		14,372		14,372
	69,674		69,674		72,619		72,619
Mortgage-backed securities	19,805		19,805		20,489		20,489
	$	89,479	$	89,479	$	93,108	$	93,108
Held to maturity
Due in 1 year or less	$	871	$	872	$	888	$	894
Due after 1 year through 5 years	3,754		3,742		3,744		3,846
Due after 5 years through 10 years	2,004		2,015		2,242		2,349
Due after 10 years	1,500		1,575		1,514		1,755
	8,129		8,204		8,388		8,844
Mortgage-backed securities	1,689		1,684		1,730		1,803
	$	9,818	$	9,888	$	10,118	$	10,647

Schedule Of Aggregate Fair Value And Gross Unrealized Loss By Length Of Time The Security Has Continuously Been In An Unrealized Loss Position

The following tables present, for Available for Sale (AFS) fixed maturities in an unrealized loss position (including securities on loan) that are not deemed to have expected credit losses, the aggregate fair value and gross unrealized loss by length of time the security has been in an unrealized loss position:

	0 – 12 Months				Over 12 Months				Total
March 31, 2022	Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury / Agency	$	946	$	(31)	$	98	$	(9)	$	1,044	$	(40)
Non-U.S.	12,654		(608)		2,385		(222)		15,039		(830)
Corporate and asset-backed securities	21,082		(899)		2,041		(216)		23,123		(1,115)
Mortgage-backed securities	13,657		(646)		1,589		(150)		15,246		(796)
Municipal	1,225		(60)		16		(1)		1,241		(61)
Total AFS fixed maturities	$	49,564	$	(2,244)	$	6,129	$	(598)	$	55,693	$	(2,842)

	0 – 12 Months				Over 12 Months				Total
December 31, 2021	Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury / Agency	$	363	$	(3)	$	70	$	(3)	$	433	$	(6)
Non-U.S.	6,917		(196)		1,093		(62)		8,010		(258)
Corporate and asset-backed securities	9,449		(145)		806		(32)		10,255		(177)
Mortgage-backed securities	8,086		(116)		190		(7)		8,276		(123)
Municipal	226		(5)		—		—		226		(5)
Total AFS fixed maturities	$	25,041	$	(465)	$	2,159	$	(104)	$	27,200	$	(569)

Schedule of Realized Gain (Loss)

The following table presents the components of Net realized gains (losses):

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Fixed maturities:
Gross realized gains	$	39	$	37
Gross realized losses	(127)		(19)
Net (provision for) recovery of expected credit losses	(12)		6
Impairment (1)	(36)		—
Total fixed maturities	(136)		24
Equity securities	56		367
Other investments	55		38
Foreign exchange	75		76
Investment and embedded derivative instruments	47		109
Fair value adjustments on insurance derivative	35		319
S&P futures	42		(44)
Other derivative instruments	1		(1)
Other (2)	(74)		(1)
Net realized gains (losses) (pre-tax)	$	101	$	887

(1)Relates to certain securities we intended to sell and securities written to market entering default.

(2)Other realized losses include impairment of assets related to Chubb's Russian entities.

Gain (Loss) on Securities [Table Text Block]

Realized gains and losses from Equity securities and Other investments from the table above include sales of securities and unrealized gains and losses from fair value changes as follows:

							Three Months Ended
							March 31
	2022						2021
(in millions of U.S. dollars)	Equity Securities		Other Investments		Total		Equity Securities		Other Investments		Total
Net gains recognized during the period	$	56	$	55	$	111	$	367	$	38	$	405
Less: Net gains recognized from sales of securities	255		—		255		45		—		45
Unrealized gains (losses) recognized for securities still held at reporting date	$	(199)	$	55	$	(144)	$	322	$	38	$	360

Debt Securities, Available-for-sale, Allowance for Credit Loss [Table Text Block]

The following table presents a roll-forward of valuation allowance for expected credit losses on fixed maturities:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Available for sale
Valuation allowance for expected credit losses - beginning of period	$	14	$	20
Provision for expected credit loss	17		4
Recovery of expected credit loss	(4)		(9)
Valuation allowance for expected credit losses - end of period	$	27	$	15
Held to maturity
Valuation allowance for expected credit losses - beginning of period	$	35	$	44
Recovery of expected credit loss	(1)		(1)
Valuation allowance for expected credit losses - end of period	$	34	$	43

Debt Securities, Held-to-maturity, Allowance for Credit Loss [Table Text Block]

The following table presents a roll-forward of valuation allowance for expected credit losses on fixed maturities:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Available for sale
Valuation allowance for expected credit losses - beginning of period	$	14	$	20
Provision for expected credit loss	17		4
Recovery of expected credit loss	(4)		(9)
Valuation allowance for expected credit losses - end of period	$	27	$	15
Held to maturity
Valuation allowance for expected credit losses - beginning of period	$	35	$	44
Recovery of expected credit loss	(1)		(1)
Valuation allowance for expected credit losses - end of period	$	34	$	43

Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block]

	Expected Liquidation Period of Underlying Assets	March 31, 2022				December 31, 2021
(in millions of U.S. dollars)		Fair Value		Maximum Future Funding Commitments		Fair Value		Maximum Future Funding Commitments
Financial	2 to 10 Years	$	1,146	$	153	$	1,096	$	267
Real assets	2 to 13 Years	1,544		735		1,193		766
Distressed	2 to 8 Years	886		920		753		641
Private credit	3 to 8 Years	84		280		84		279
Traditional	2 to 14 Years	6,928		5,121		6,647		5,200
Vintage	1 to 2 Years	65		—		68		—
Investment funds	Not Applicable	294		—		267		—
		$	10,947	$	7,209	$	10,108	$	7,153

Schedule Of Components Of Restricted Assets

The following table presents the components of restricted assets:

	March 31		December 31
(in millions of U.S. dollars)	2022		2021
Trust funds	$	8,785	$	9,915
Deposits with U.S. regulatory authorities	2,370		2,402
Deposits with non-U.S. regulatory authorities	2,802		2,873
Assets pledged under repurchase agreements	1,443		1,420
Other pledged assets	734		634
Total	$	16,134	$	17,244

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Fair value measurements (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Financial Instruments Measured At Fair Value On A Recurring Basis

Financial instruments measured at fair value on a recurring basis, by valuation hierarchy

March 31, 2022	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury / Agency	$	1,562	$	540	$	—	$	2,102
Non-U.S.	—		24,166		618		24,784
Corporate and asset-backed securities	—		35,440		2,229		37,669
Mortgage-backed securities	—		19,785		20		19,805
Municipal	—		5,119		—		5,119
	1,562		85,050		2,867		89,479
Equity securities	3,514		—		82		3,596
Short-term investments	1,954		1,449		4		3,407
Other investments (1)	253		452		—		705
Securities lending collateral	—		1,800		—		1,800
Investment derivative instruments	163		—		—		163
Other derivative instruments	3		—		—		3
Separate account assets	5,468		92		—		5,560
Total assets measured at fair value (1)	$	12,917	$	88,843	$	2,953	$	104,713
Liabilities:
Investment derivative instruments	$	212	$	—	$	—	$	212
Other derivative instruments	63		—		—		63
GLB (2)	—		—		696		696
Total liabilities measured at fair value	$	275	$	—	$	696	$	971

(1)Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $10,947 million, policy loans of $244 million and other investments of $51 million at March 31, 2022 measured using NAV as a practical expedient.

(2)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

December 31, 2021	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury / Agency	$	1,680	$	534	$	—	$	2,214
Non-U.S.	—		25,196		633		25,829
Corporate and asset-backed securities	—		37,014		2,049		39,063
Mortgage-backed securities	—		20,463		26		20,489
Municipal	—		5,513		—		5,513
	1,680		88,720		2,708		93,108
Equity securities	4,705		—		77		4,782
Short-term investments	1,744		1,395		7		3,146
Other investments (1)	286		481		—		767
Securities lending collateral	—		1,831		—		1,831
Investment derivative instruments	58		—		—		58
Separate account assets	5,461		99		—		5,560
Total assets measured at fair value (1)	$	13,934	$	92,526	$	2,792	$	109,252
Liabilities:
Investment derivative instruments	$	166	$	—	$	—	$	166
Other derivative instruments	16		—		—		16
GLB (2)	—		—		745		745
Total liabilities measured at fair value	$	182	$	—	$	745	$	927

(1)Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $10,108 million, policy loans of $243 million and other investments of $51 million at December 31, 2021 measured using NAV as a practical expedient.

(2)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

Schedule Of Significant Unobservable Inputs Used In Level 3 Liability Valuations

The following table presents the significant unobservable inputs used in the Level 3 liability valuations. Excluded from the table below are inputs used to determine the fair value of Level 3 assets which are based on single broker quotes and contain no quantitative unobservable inputs developed by management. The majority of our fixed maturities classified as Level 3 used external pricing when markets are less liquid due to the lack of market inputs (i.e., stale pricing, broker quotes).

(in millions of U.S. dollars, except for percentages)	Fair Value				Valuation Technique	Significant Unobservable Inputs	Ranges	Weighted Average (1)
	March 31, 2022		December 31, 2021
GLB (1)	$	696	$	745	Actuarial model	Lapse rate	3% – 31%	4.4	%
						Annuitization rate	0% – 100%	3.7	%

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following tables present a reconciliation of the beginning and ending balances of financial instruments measured at fair value using significant unobservable inputs (Level 3):

	Assets										Liabilities
Three Months Ended March 31, 2022 (in millions of U.S. dollars)	Available-for-Sale Debt Securities						Equity securities		Short-term investments		GLB (1)
	Non-U.S.		Corporate and asset- backed securities		Mortgage-backed securities
Balance, beginning of period	$	633	$	2,049	$	26	$	77	$	7	$	745
Transfers into Level 3	18		29		—		1		—		—
Transfers out of Level 3	(23)		(50)		(5)		—		—		—
Change in Net Unrealized Gains/Losses in OCI	(13)		(22)		—		—		—		—
Net Realized Gains/Losses	(2)		—		—		4		—		(35)
Purchases	43		315		—		3		2		—
Sales	(6)		(27)		—		(3)		—		—
Settlements	(32)		(65)		(1)		—		(5)		—
Other	—		—		—		—		—		(14)
Balance, end of period	$	618	$	2,229	$	20	$	82	$	4	$	696
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date	$	(2)	$	—	$	—	$	4	$	—	$	(35)
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date	$	(13)	$	(22)	$	—	$	—	$	—	$	—

(1)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

	Assets												Liabilities
Three Months Ended March 31, 2021 (in millions of U.S. dollars)	Available-for-Sale Debt Securities						Equity securities		Short-term investments		Other investments		GLB (1)
	Non-U.S.		Corporate and asset- backed securities		Mortgage-backed securities
Balance, beginning of period	$	546	$	1,573	$	60	$	73	$	5	$	10	$	1,089
Transfers into Level 3	—		17		—		—		—		—		—
Change in Net Unrealized Gains/Losses in OCI	8		6		—		—		—		—		—
Net Realized Gains/Losses	—		(3)		—		2		—		—		(319)
Purchases	121		169		—		3		1		—		—
Sales	(7)		(25)		—		(3)		—		—		—
Settlements	(18)		(125)		(9)		—		(5)		—		—
Other	—		—		—		—		—		—		(10)
Balance, end of period	$	650	$	1,612	$	51	$	75	$	1	$	10	$	760
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date	$	—	$	(3)	$	—	$	2	$	—	$	—	$	(319)
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date	$	10	$	11	$	—	$	—	$	—	$	—	$	—

(1)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The following tables present a reconciliation of the beginning and ending balances of financial instruments measured at fair value using significant unobservable inputs (Level 3):

	Assets										Liabilities
Three Months Ended March 31, 2022 (in millions of U.S. dollars)	Available-for-Sale Debt Securities						Equity securities		Short-term investments		GLB (1)
	Non-U.S.		Corporate and asset- backed securities		Mortgage-backed securities
Balance, beginning of period	$	633	$	2,049	$	26	$	77	$	7	$	745
Transfers into Level 3	18		29		—		1		—		—
Transfers out of Level 3	(23)		(50)		(5)		—		—		—
Change in Net Unrealized Gains/Losses in OCI	(13)		(22)		—		—		—		—
Net Realized Gains/Losses	(2)		—		—		4		—		(35)
Purchases	43		315		—		3		2		—
Sales	(6)		(27)		—		(3)		—		—
Settlements	(32)		(65)		(1)		—		(5)		—
Other	—		—		—		—		—		(14)
Balance, end of period	$	618	$	2,229	$	20	$	82	$	4	$	696
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date	$	(2)	$	—	$	—	$	4	$	—	$	(35)
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date	$	(13)	$	(22)	$	—	$	—	$	—	$	—

(1)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

	Assets												Liabilities
Three Months Ended March 31, 2021 (in millions of U.S. dollars)	Available-for-Sale Debt Securities						Equity securities		Short-term investments		Other investments		GLB (1)
	Non-U.S.		Corporate and asset- backed securities		Mortgage-backed securities
Balance, beginning of period	$	546	$	1,573	$	60	$	73	$	5	$	10	$	1,089
Transfers into Level 3	—		17		—		—		—		—		—
Change in Net Unrealized Gains/Losses in OCI	8		6		—		—		—		—		—
Net Realized Gains/Losses	—		(3)		—		2		—		—		(319)
Purchases	121		169		—		3		1		—		—
Sales	(7)		(25)		—		(3)		—		—		—
Settlements	(18)		(125)		(9)		—		(5)		—		—
Other	—		—		—		—		—		—		(10)
Balance, end of period	$	650	$	1,612	$	51	$	75	$	1	$	10	$	760
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet date	$	—	$	(3)	$	—	$	2	$	—	$	—	$	(319)
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet date	$	10	$	11	$	—	$	—	$	—	$	—	$	—

(1)Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

Carrying Values And Fair Values Of Financial Instruments Not Measured At Fair Value

The following tables present fair value, by valuation hierarchy, and carrying value of the financial instruments not measured at fair value:

March 31, 2022	Fair Value								Net Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury / Agency	$	1,126	$	48	$	—	$	1,174	$	1,180
Non-U.S.	—		1,191		—		1,191		1,180
Corporate and asset-backed securities	—		1,935		—		1,935		1,885
Mortgage-backed securities	—		1,684		—		1,684		1,689
Municipal	—		3,904		—		3,904		3,884
Total assets	$	1,126	$	8,762	$	—	$	9,888	$	9,818
Liabilities:
Repurchase agreements	$	—	$	1,406	$	—	$	1,406	$	1,406
Short-term debt	—		1,484		—		1,484		1,474
Long-term debt	—		14,702		—		14,702		14,585
Trust preferred securities	—		425		—		425		308
Total liabilities	$	—	$	18,017	$	—	$	18,017	$	17,773

December 31, 2021	Fair Value								Net Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury / Agency	$	1,192	$	52	$	—	$	1,244	$	1,213
Non-U.S.	—		1,262		—		1,262		1,196
Corporate and asset-backed securities	—		2,201		—		2,201		2,004
Mortgage-backed securities	—		1,803		—		1,803		1,730
Municipal	—		4,137		—		4,137		3,975
Total assets	$	1,192	$	9,455	$	—	$	10,647	$	10,118
Liabilities:
Repurchase agreements	$	—	$	1,406	$	—	$	1,406	$	1,406
Short-term debt	—		1,019		—		1,019		999
Long-term debt	—		16,848		—		16,848		15,169
Trust preferred securities	—		460		—		460		308
Total liabilities	$	—	$	19,733	$	—	$	19,733	$	17,882

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Reinsurance (Tables)

3 Months Ended

Mar. 31, 2022

Reinsurance Disclosures [Abstract]

schedule of reinsurance recoverable on ceded insurance

	March 31, 2022				December 31, 2021
(in millions of U.S. dollars)	Net Reinsurance Recoverable (1)		Valuation allowance		Net Reinsurance Recoverable (1)		Valuation allowance
Reinsurance recoverable on unpaid losses and loss expenses	$	16,646	$	276	$	16,184	$	271
Reinsurance recoverable on paid losses and loss expenses	1,115		53		1,182		58
Reinsurance recoverable on losses and loss expenses	$	17,761	$	329	$	17,366	$	329
Reinsurance recoverable on policy benefits	$	208	$	4	$	213	$	4

(1)Net of valuation allowance for uncollectible reinsurance.

Reinsurance Recoverable, Allowance for Credit Loss [Table Text Block]

The following table presents a roll-forward of valuation allowance for uncollectible reinsurance related to Reinsurance recoverable on loss and loss expenses:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Valuation allowance for uncollectible reinsurance - beginning of period	$	329	$	314
Provision for uncollectible reinsurance	3		3
Write-offs charged against the valuation allowance	(4)		—
Foreign exchange revaluation	1		—
Valuation allowance for uncollectible reinsurance - end of period	$	329	$	317

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Unpaid losses and loss expenses Unpaid losses and loss expenses (Tables)

3 Months Ended

Mar. 31, 2022

Liability for Claims and Claims Adjustment Expense [Abstract]

Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]

The following table presents a reconciliation of beginning and ending Unpaid losses and loss expenses:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Gross unpaid losses and loss expenses – beginning of period	$	72,943	$	67,811
Reinsurance recoverable on unpaid losses – beginning of period (1)	(16,184)		(14,647)
Net unpaid losses and loss expenses – beginning of period	56,759		53,164
Net losses and loss expenses incurred in respect of losses occurring in:
Current year	5,192		5,249
Prior years (2)	(405)		(196)
Total	4,787		5,053
Net losses and loss expenses paid in respect of losses occurring in:
Current year	792		732
Prior years	3,569		3,161
Total	4,361		3,893
Foreign currency revaluation and other	13		71
Net unpaid losses and loss expenses – end of period	57,198		54,395
Reinsurance recoverable on unpaid losses (1)	16,646		14,860
Gross unpaid losses and loss expenses – end of period	$	73,844	$	69,255

(1)    Net of valuation allowance for uncollectible reinsurance.

(2)    Relates to prior period loss reserve development only and excludes prior period development related to reinstatement premiums, expense adjustments and earned premiums totaling $165 million and $4 million for the three months ended March 31, 2022 and 2021, respectively.

Prior Period Development, by Segment [Table Text Block]

The following table summarizes (favorable) and adverse PPD by segment.

	Three Months Ended March 31
(in millions of U.S. dollars)	Long-tail		Short-tail		Total
2022
North America Commercial P&C Insurance	$	(20)	$	(88)	$	(108)
North America Personal P&C Insurance	—		(51)		(51)
North America Agricultural Insurance	—		(26)		(26)
Overseas General Insurance	—		(60)		(60)
Global Reinsurance	—		(3)		(3)
Corporate	8		—		8
Total	$	(12)	$	(228)	$	(240)
2021
North America Commercial P&C Insurance	$	(46)	$	(81)	$	(127)
North America Personal P&C Insurance	—		(40)		(40)
North America Agricultural Insurance	—		(2)		(2)
Overseas General Insurance	—		(25)		(25)
Global Reinsurance	—		(7)		(7)
Corporate	9		—		9
Total	$	(37)	$	(155)	$	(192)

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Commitments, contingencies, and guarantees (Tables)

3 Months Ended

Mar. 31, 2022

Commitments and Contingencies Disclosure [Abstract]

Balance Sheet Locations, Fair Values In An Asset Or (Liability) Position, And Notional Values/Payment Provisions Of Derivative Instruments

The following table presents the balance sheet locations, fair values of derivative instruments in an asset or (liability) position, and notional values/payment provisions of our derivative instruments:

				March 31, 2022						December 31, 2021
	Consolidated Balance Sheet Location	Fair Value				Notional Value/ Payment Provision		Fair Value				Notional Value/ Payment Provision
(in millions of U.S. dollars)		Derivative Asset		Derivative (Liability)				Derivative Asset		Derivative (Liability)
Investment and embedded derivative   instruments:
Foreign currency forward contracts	OA / (AP)	$	58	$	(154)	$	7,478	$	25	$	(139)	$	6,182
Options/Futures contracts on notes, bonds, and equities	OA / (AP)	105		(58)		9,282		33		(27)		12,944
Convertible securities (1)	FM AFS / ES	16		—		19		11		—		12
		$	179	$	(212)	$	16,779	$	69	$	(166)	$	19,138
Other derivative instruments:
Futures contracts on equities (2)	OA / (AP)	$	—	$	(63)	$	814	$	—	$	(16)	$	905
Other	OA / (AP)	3		—		79		—		—		3
		$	3	$	(63)	$	893	$	—	$	(16)	$	908
GLB (3)	(AP)	$	—	$	(696)	$	1,558	$	—	$	(745)	$	1,432

(1)Includes fair value of embedded derivatives.

(2)Related to GMDB and GLB book of business.

(3)Note that the payment provision related to GLB is the net amount at risk. The concept of a notional value does not apply to the GLB reinsurance contracts.

Net Realized Gains (Losses) Of Derivative Instrument Activity In Consolidated Statement Of Operations

The following table presents net realized gains (losses) related to derivative instrument activity in the Consolidated statements of operations:

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Investment and embedded derivative instruments:
Foreign currency forward contracts	$	(54)	$	(16)
All other futures contracts, options, and equities	102		125
Convertible securities (1)	(1)		—
Total investment and embedded derivative instruments	$	47	$	109
GLB and other derivative instruments:
GLB	$	35	$	319
Futures contracts on equities (2)	42		(44)
Other	1		(1)
Total GLB and other derivative instruments	$	78	$	274
	$	125	$	383

(1)Includes embedded derivatives.

(2)Related to GMDB and GLB book of business.

Transfer of Certain Financial Assets Accounted for as Secured Borrowings

The following table presents the carrying value of collateral held under securities lending agreements by investment category and remaining contractual maturity of the underlying agreements:

	Remaining contractual maturity
	March 31, 2022		December 31, 2021
(in millions of U.S. dollars)	Overnight and Continuous
Collateral held under securities lending agreements:
Cash	$	1,000	$	931
U.S. Treasury / Agency	106		128
Non-U.S.	663		752
Corporate and asset-backed securities	23		12
Mortgage-backed securities	—		1
Equity securities	8		7
	$	1,800	$	1,831
Gross amount of recognized liability for securities lending payable	$	1,800	$	1,831

The following table presents the carrying value of collateral pledged under repurchase agreements by investment category and remaining contractual maturity of the underlying agreements:

	Remaining contractual maturity
	March 31, 2022								December 31, 2021
	Up to 30 Days		30-90 Days		Greater than 90 Days		Total		30-90 Days		Greater than 90 Days		Total
(in millions of U.S. dollars)
Collateral pledged under repurchase agreements:
Cash	$	43	$	—	$	—	$	43	$	—	$	29	$	29
U.S. Treasury / Agency	—		—		102		102		103		—		103
Mortgage-backed securities	358		466		474		1,298		—		1,288		1,288
	$	401	$	466	$	576	$	1,443	$	103	$	1,317	$	1,420
Gross amount of recognized liabilities for repurchase agreements							$	1,406					$	1,406
Difference (1)							$	37					$	14

(1)Per the repurchase agreements, the amount of collateral posted is required to exceed the amount of gross liability.

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Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2022

Stockholders' Equity Note [Abstract]

Share Repurchase Program [Table Text Block]

The following table presents repurchases of Chubb's Common Shares conducted in a series of open market transactions under the Board authorizations:

	Three Months Ended				April 1, 2022 through April 28, 2022
			March 31
(in millions of U.S. dollars, except share data)	2022		2021
Number of shares repurchased	4,869,900		3,110,000		115,000
Cost of shares repurchased	$	1,001	$	519	$	24
Repurchase authorization remaining at end of period	$	1,648	$	1,982	$	1,624

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Postretirement benefits (Tables)

3 Months Ended

Mar. 31, 2022

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

The components of net pension and other postretirement benefit costs (benefits) reflected in Net income in the Consolidated statements of operations were as follows:

	Pension Benefit Plans								Other Postretirement Benefit Plans
	2022				2021				2022		2021
Three Months Ended March 31	U.S. Plans		Non-U.S. Plans		U.S. Plans		Non-U.S. Plans
(in millions of U.S. dollars)
Service cost	$	—	$	1	$	—	$	1	$	—	$	—
Non-service cost (benefit):
Interest cost	21		6		18		5		—		—
Expected return on plan assets	(71)		(11)		(64)		(11)		—		—
Amortization of net actuarial loss	—		—		—		1		—		—
Amortization of prior service cost	—		—		—		—		—		(20)
Settlements	—		—		—		—		—		—
Total non-service cost (benefit)	(50)		(5)		(46)		(5)		—		(20)
Net periodic benefit cost (benefit)	$	(50)	$	(4)	$	(46)	$	(4)	$	—	$	(20)

The line items in which the service cost and non-service cost (benefit) components of net periodic benefit cost (benefit) are included in the Consolidated statements of operations were as follows:

	Pension Benefit Plans				Other Postretirement Benefit Plans
Three Months Ended March 31	2022		2021		2022		2021
(in millions of U.S. dollars)
Service cost:
Losses and loss expenses	$	—	$	—	$	—	$	—
Administrative expenses	1		1		—		—
Total service cost	1		1		—		—
Non-service cost (benefit):
Losses and loss expenses	(5)		(5)		—		(2)
Administrative expenses	(50)		(46)		—		(18)
Total non-service cost (benefit)	(55)		(51)		—		(20)
Net periodic benefit cost (benefit)	$	(54)	$	(50)	$	—	$	(20)

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Other Income and Expenses (Tables)

3 Months Ended

Mar. 31, 2022

Other Income and Expenses [Abstract]

Schedule of Other Nonoperating Income (Expense)

	Three Months Ended
	March 31
(in millions of U.S. dollars)	2022		2021
Equity in net income of partially-owned entities (1)	$	361	$	497
Gains (losses) from fair value changes in separate account assets (2)	(31)		4
Federal excise and capital taxes	(4)		(5)
Other	(16)		(6)
Total	$	310	$	490

(1)     Equity in net income of partially-owned entities includes $40 million and $49 million attributable to our investments in Huatai (Huatai Group, Huatai P&C, and Huatai Life) for the three months ended March 31, 2022 and 2021, respectively.

(2)     Related to gains (losses) from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP.

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Segment information (Tables)

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Operations By Segment

The following tables present the Statement of Operations by segment:

For the Three Months Ended March 31, 2022 (in millions of U.S. dollars)	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance		Global Reinsurance		Life Insurance		Corporate		Segment Measure Reclass		Chubb Consolidated
Net premiums written	$	4,039	$	1,180	$	62	$	3,079	$	253	$	586	$	—	$	—	$	9,199
Net premiums earned	4,114		1,247		(29)		2,628		235		551		—		—		8,746
Losses and loss expenses	2,497		713		(92)		1,389		115		154		10		1		4,787
Policy benefits	—		—		—		—		—		176		—		(31)		145
Policy acquisition costs	573		260		12		679		62		151		—		—		1,737
Administrative expenses	265		69		(1)		269		9		84		83		—		778
Underwriting income (loss)	779		205		52		291		49		(14)		(93)		30		1,299
Net investment income (loss)	489		59		7		147		85		103		(5)		(63)		822
Other (income) expense	6		1		—		2		—		(28)		(259)		(32)		(310)
Amortization expense of    purchased intangibles	—		2		7		14		—		2		46		—		71
Segment income	$	1,262	$	261	$	52	$	422	$	134	$	115	$	115	$	(1)	$	2,360
Net realized gains (losses)													100		1		101
Interest expense													132		—		132
Income tax expense													355		—		355
Net income (loss)													$	(272)	$	—	$	1,974

For the Three Months Ended March 31, 2021 (in millions of U.S. dollars)	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance		Global Reinsurance		Life Insurance		Corporate		Segment Measure Reclass		Chubb Consolidated
Net premiums written	$	3,664	$	1,098	$	183	$	2,890	$	207	$	620	$	—	$	—	$	8,662
Net premiums earned	3,674		1,184		110		2,478		180		595		—		—		8,221
Losses and loss expenses	2,560		819		85		1,263		120		198		9		(1)		5,053
Policy benefits	—		—		—		—		—		163		—		4		167
Policy acquisition costs	514		247		12		668		45		179		—		—		1,665
Administrative expenses	254		60		3		266		8		82		71		—		744
Underwriting income (loss)	346		58		10		281		7		(27)		(80)		(3)		592
Net investment income (loss)	540		65		7		141		70		98		(17)		(41)		863
Other (income) expense	2		1		—		1		—		(34)		(415)		(45)		(490)
Amortization expense of    purchased intangibles	—		3		7		12		—		1		49		—		72
Segment income	$	884	$	119	$	10	$	409	$	77	$	104	$	269	$	1	$	1,873
Net realized gains (losses)													888		(1)		887
Interest expense													122		—		122
Income tax expense													338		—		338
Net income													$	697	$	—	$	2,300

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Earnings per share (Tables)

3 Months Ended

Mar. 31, 2022

Earnings Per Share [Abstract]

Schedule Of Earnings Per Share, Basic And Diluted

	Three Months Ended
	March 31
(in millions of U.S. dollars, except share and per share data)	2022		2021
Numerator:
Net income	$	1,974	$	2,300
Denominator:
Denominator for basic earnings per share:
Weighted-average shares outstanding	425,805,105		450,539,568
Denominator for diluted earnings per share:
Share-based compensation plans	3,985,729		2,795,971
Weighted-average shares outstanding and assumed conversions	429,790,834		453,335,539
Basic earnings per share	$	4.64	$	5.10
Diluted earnings per share	$	4.59	$	5.07
Potential anti-dilutive share conversions	681,032		1,952,612

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General Schedule of Cash and Cash Equivalent (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Line Items]
Cash	$ 1,734	$ 1,659
Restricted cash	180	152
Total cash and restricted cash shown in the Consolidated statement of cash flows	$ 1,914	$ 1,811	$ 1,841	$ 1,836

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General Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Period Increase (Decrease)	$ 31

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General Adoption of New Accounting Pronouncements (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect on Retained Earnings, Net of Tax	$ (56,698)	$ (59,714)	$ (59,076)
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect on Retained Earnings, Net of Tax	$ (47,148)	$ (47,365)	$ (41,637)	$ (39,337)

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Acquisitions Investments (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Oct. 07, 2021
Cigna's Life Insurance Business in Asia-Pacific Markets [Member] | Asia Pacific
Investment Holdings [Line Items]
BusinessAcquisitionCostOfAcquiredEntityExpectedCashConsideration [Member]				$ 5,720
Huatai Group [Member] | CHINA
Investment Holdings [Line Items]
Equity method investment, additional 31.8 percent agreed on		31.80%
Purchase of incremental ownership interest		$ 2,200
Deposits Assets		$ 1,100
Payment to acquire additional ownership interest in equity method investment	$ 113		$ 500
Equity method investment, additional 7.1 percentage agreed on		7.10%
Huatai Group [Member] | CHINA | Direct ownership
Investment Holdings [Line Items]
Equity Method Investment, Ownership Percentage	47.30%

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Investments (Narrative) (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Investments [Line Items]
Restricted assets in fixed maturities and short-term investments	$ 15,954	$ 17,092
Restricted assets in cash	$ 180	$ 152

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Investments (Schedule Of Amortized Cost and Fair Value of Available-for-sale Securities) (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	$ 91,526	$ 90,493
Debt Securities, Available-for-sale, Allowance for Credit Loss	(27)	(14)	$ (15)	$ (20)
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	910	3,220
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before tax	(2,930)	(591)
Available for sale, Fair Value	89,479	93,108
U.S. Treasury / Agency
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	2,111	2,111
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	31	109
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before tax	(40)	(6)
Available for sale, Fair Value	2,102	2,214
Non-U.S.
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	25,304	25,156
Debt Securities, Available-for-sale, Allowance for Credit Loss	(16)	(8)
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	380	953
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before tax	(884)	(272)
Available for sale, Fair Value	24,784	25,829
Corporate and asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	38,469	37,844
Debt Securities, Available-for-sale, Allowance for Credit Loss	(11)	(6)
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	360	1,410
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before tax	(1,149)	(185)
Available for sale, Fair Value	37,669	39,063
Mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	20,511	20,080
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	90	532
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before tax	(796)	(123)
Available for sale, Fair Value	19,805	20,489
Municipal
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	5,131	5,302
Debt Securities, Available-for-sale, Allowance for Credit Loss	0	0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	49	216
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before tax	(61)	(5)
Available for sale, Fair Value	$ 5,119	$ 5,513

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Investments (Schedule Of Amortized Cost And Fair Value Of HTM Fixed Maturities And Related OTTI Recognized In Accumulated Other Comprehensive Income) (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	$ 9,852	$ 10,153
Debt Securities, Held-to-maturity, Allowance for Credit Loss	(34)	(35)	$ (43)	$ (44)
Debt securities, held to maturity, net carrying value	9,818	10,118
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	119	533
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(49)	(4)
Held to maturity, at Fair Value	9,888	10,647
U.S. Treasury / Agency
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	1,180	1,213
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	0
Debt securities, held to maturity, net carrying value	1,180	1,213
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	12	34
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(18)	(3)
Held to maturity, at Fair Value	1,174	1,244
Non-U.S.
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	1,185	1,201
Debt Securities, Held-to-maturity, Allowance for Credit Loss	(5)	(5)
Debt securities, held to maturity, net carrying value	1,180	1,196
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	19	66
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(8)	0
Held to maturity, at Fair Value	1,191	1,262
Corporate and asset-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	1,913	2,032
Debt Securities, Held-to-maturity, Allowance for Credit Loss	(28)	(28)
Debt securities, held to maturity, net carrying value	1,885	2,004
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	56	197
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(6)	0
Held to maturity, at Fair Value	1,935	2,201
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	1,689	1,731
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0	(1)
Debt securities, held to maturity, net carrying value	1,689	1,730
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	8	74
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(13)	(1)
Held to maturity, at Fair Value	1,684	1,803
Municipal
Schedule of Held-to-maturity Securities [Line Items]
Debt Securities, Held-to-maturity	3,885	3,976
Debt Securities, Held-to-maturity, Allowance for Credit Loss	(1)	(1)
Debt securities, held to maturity, net carrying value	3,884	3,975
Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain	24	162
Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss	(4)	0
Held to maturity, at Fair Value	$ 3,904	$ 4,137

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Investments (held-to-maturity credit quality indicator) (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt Securities, Held-to-maturity	$ 9,852	$ 10,153
Fixed Maturities Percent of Total Amortized cost	100.00%	100.00%
Standard & Poor's, AAA Rating [Member]
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt Securities, Held-to-maturity	$ 2,021	$ 2,089
Fixed Maturities Percent of Total Amortized cost	21.00%	21.00%
Standard & Poor's, AA Rating [Member]
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt Securities, Held-to-maturity	$ 5,210	$ 5,303
Fixed Maturities Percent of Total Amortized cost	52.00%	52.00%
Standard & Poor's, A Rating [Member]
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt Securities, Held-to-maturity	$ 1,922	$ 1,964
Fixed Maturities Percent of Total Amortized cost	20.00%	19.00%
Standard & Poor's, BBB Rating [Member]
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt Securities, Held-to-maturity	$ 676	$ 773
Fixed Maturities Percent of Total Amortized cost	7.00%	8.00%
Standard & Poor's, BB Rating [Member]
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt Securities, Held-to-maturity	$ 23	$ 23
Fixed Maturities Percent of Total Amortized cost	0.00%	0.00%
Other [Member]
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Debt Securities, Held-to-maturity	$ 0	$ 1
Fixed Maturities Percent of Total Amortized cost	0.00%	0.00%

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Investments (Schedule Of Fixed Maturities By Contractual Maturity) (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Available for sale, Due in 1 year or less, Fair Value & Net Carrying Value	$ 4,393	$ 4,498
Available for sale, Due after 1 year through 5 years, Fair Value & Net Carrying Value	25,136	25,542
Available for sale, Due after 5 years through 10 years, Fair Value & Net Carrying Value	27,033	28,207
Available for sale, Due after 10 years, Fair Value & Net Carrying Value	13,112	14,372
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value	69,674	72,619
Available for sale, Mortgage backed securities, Fair Value & Net Carrying Value	19,805	20,489
Available for sale, Fair Value	89,479	93,108
Debt securities, Held-to-maturity, maturity, allocated and single maturity date, within one year, net carrying value	871	888
Held to maturity, Due in 1 year or less, Fair Value	872	894
Held-to-maturity, after one through five years, net carrying value	3,754	3,744
Held to maturity, Due after 1 year through 5, Fair Value	3,742	3,846
Held-to-maturity, after 5 through 10 years, net carrying value	2,004	2,242
Held to maturity, Due after 5 years through 10 years, Fair Value	2,015	2,349
Held-to-maturity, after 10 years, net carrying value	1,500	1,514
Held to maturity, Due after 10 years, Fair Value	1,575	1,755
Debt securities, Held-to-maturity, maturity, allocated and single maturity date, net carrying value	8,129	8,388
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Fair Value	8,204	8,844
Held-to-maturity, MBS, net carrying value	1,689	1,730
Held to maturity, Mortgage backed securities, Fair Value	1,684	1,803
Debt securities, held to maturity, net carrying value	9,818	10,118
Held to maturity, Fair Value	$ 9,888	$ 10,647

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Investments (Aggregate Fair Value And Gross Unrealized Loss By Length Of Time Security Has Continuously Been In Unrealized Loss Position) (Detail) - Fixed Maturities [Member] - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 49,564	$ 25,041
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(2,244)	(465)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	6,129	2,159
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(598)	(104)
Debt Securities, Available-for-sale, Unrealized Loss Position	55,693	27,200
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(2,842)	(569)
U.S. Treasury / Agency
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	946	363
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(31)	(3)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	98	70
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(9)	(3)
Debt Securities, Available-for-sale, Unrealized Loss Position	1,044	433
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(40)	(6)
Non-U.S.
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	12,654	6,917
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(608)	(196)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	2,385	1,093
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(222)	(62)
Debt Securities, Available-for-sale, Unrealized Loss Position	15,039	8,010
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(830)	(258)
Corporate and asset-backed securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	21,082	9,449
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(899)	(145)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	2,041	806
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(216)	(32)
Debt Securities, Available-for-sale, Unrealized Loss Position	23,123	10,255
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(1,115)	(177)
Mortgage-backed securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	13,657	8,086
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(646)	(116)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,589	190
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(150)	(7)
Debt Securities, Available-for-sale, Unrealized Loss Position	15,246	8,276
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(796)	(123)
Municipal
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	1,225	226
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(60)	(5)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	16	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1)	0
Debt Securities, Available-for-sale, Unrealized Loss Position	1,241	226
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (61)	$ (5)

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Investments (Net Realized Gains (Losses) And Losses Included In Net Realized Gains (Losses) And Other Comprehensive Income) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022		Mar. 31, 2021
Gain (Loss) on Securities [Line Items]
Debt Securities, Allowance for Credit Loss, Period Increase (Decrease)	$ 17		$ 4
Debt Securities, Available-for-sale, Gain (Loss), Total	(136)		24
Net realized gains (losses) (includes $(136) and $24 reclassified from AOCI)	101		887
Foreign exchange	75		76
Fair Value on Insurance Derivatives	35		319
Gain (Loss) on Derivative	125		383
Other	(74)	[1]	(1)
Fixed Maturities [Member]
Gain (Loss) on Securities [Line Items]
Debt Securities, Available-for-sale, Realized Gain	39		37
Debt Securities, Available-for-sale, Realized Loss	(127)		(19)
Debt Securities, Allowance for Credit Loss, Period Increase (Decrease)	(12)		6
Debt Securities, Available-For-Sale, Credit Impairment Charges Intent to Sell	(36)	[2]	0
Equity Securities [Member]
Gain (Loss) on Securities [Line Items]
Equity Securities, FV-NI, Realized Gain (Loss)	56		367
Other Investments [Member]
Gain (Loss) on Securities [Line Items]
Net realized gains (losses) (includes $(136) and $24 reclassified from AOCI)	55		38
Other derivative instruments
Gain (Loss) on Securities [Line Items]
Gain (Loss) on Derivative	1		(1)
Investment and embedded derivative instruments
Gain (Loss) on Securities [Line Items]
Gain (Loss) on Derivative	47		109
S&P put options and futures
Gain (Loss) on Securities [Line Items]
Gain (Loss) on Derivative	$ 42		$ (44)

[1] Other realized losses include impairment of assets related to Chubb's Russian entities.

[2] Relates to certain securities we intended to sell and securities written to market entering default.

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Investments Schedule of Gains and Losses on Equity and Other Investments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Gain (Loss) on Securities [Line Items]
Net realized gains (losses) (includes $(136) and $24 reclassified from AOCI)	$ 101	$ 887
Equity Securities [Member]
Gain (Loss) on Securities [Line Items]
Equity Securities, FV-NI, Realized Gain (Loss)	56	367
Less: Net gains (losses) recognized from sales of securities	255	45
Unrealized gains (losses) recognized for securities still held at reporting date	(199)	322
Other Investments [Member]
Gain (Loss) on Securities [Line Items]
Net realized gains (losses) (includes $(136) and $24 reclassified from AOCI)	55	38
Less: Net gains (losses) recognized from sales of securities	0	0
Unrealized gains (losses) recognized for securities still held at reporting date	55	38
Equity securities and other investments [Member]
Gain (Loss) on Securities [Line Items]
Net realized gains (losses) (includes $(136) and $24 reclassified from AOCI)	111	405
Less: Net gains (losses) recognized from sales of securities	255	45
Unrealized gains (losses) recognized for securities still held at reporting date	$ (144)	$ 360

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Investments (Rollforward of expected credit-losses, AFS) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
Debt Securities, Available-for-sale, Allowance for Credit Loss	$ 27	$ 15	$ 14	$ 20
Debt Securities, Available-for-sale, Allowance for Credit Loss, Period Increase (Decrease)	17	4
Debt Securities, Available-for-sale, Allowance for Credit Loss, Recovery	$ (4)	$ (9)

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Investments (Rollforward of expected credit losses HTM) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Debt Securities, Held-to-maturity, Allowance for Credit Loss	$ 34	$ 43	$ 35	$ 44
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Recovery	$ (1)	$ (1)

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Investments Entities that Calculate Net Asset Value Per Share (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	$ 7,209	$ 7,153
Alternative Investment	10,947	10,108
Financial [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	153	267
Alternative Investment	1,146	1,096
Real Estate Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	735	766
Alternative Investment	1,544	1,193
Distressed Alternative Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	920	641
Alternative Investment	886	753
Private Credit Alternative Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	280	279
Alternative Investment	84	84
Private Equity Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	5,121	5,200
Alternative Investment	6,928	6,647
Vintage Alternative Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	0	0
Alternative Investment	65	68
Investment Funds Alternative Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	0	0
Alternative Investment	$ 294	$ 267
Minimum [Member] | Financial [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	2 years	2 years
Minimum [Member] | Real Estate Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	2 years	2 years
Minimum [Member] | Distressed Alternative Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	2 years	2 years
Minimum [Member] | Private Credit Alternative Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	3 years	3 years
Minimum [Member] | Private Equity Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	2 years	2 years
Minimum [Member] | Vintage Alternative Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	1 year	1 year
Maximum [Member] | Financial [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	10 years	10 years
Maximum [Member] | Real Estate Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	13 years	13 years
Maximum [Member] | Distressed Alternative Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	8 years	8 years
Maximum [Member] | Private Credit Alternative Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	8 years	8 years
Maximum [Member] | Private Equity Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	14 years	14 years
Maximum [Member] | Vintage Alternative Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Liquidating Investment, Remaining Period	2 years	2 years

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Investments (Schedule Of Components Of Restricted Assets) (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Assets Held-in-trust	$ 8,785	$ 9,915
Restricted Assets Deposits With Non United States Regulatory Authorities	2,370	2,402
Deposits With Non United States Regulatory Authorities	2,802	2,873
Assets pledged under repurchase agreements	1,443	1,420
Other Restricted Assets, Current	734	634
Total restricted assets	$ 16,134	$ 17,244

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Fair Value Measurements (Financial Instruments Measured At Fair Value On Recurring Basis) (Detail) - USD ($) $ in Millions	Mar. 31, 2022		Dec. 31, 2021
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	$ 89,479		$ 93,108
Equity securities, at fair value	3,596		4,782
Short-term investments, at fair value (amortized cost – $3,408 and $3,147)	3,407		3,146
Other investments, at fair value	11,947		11,169
Securities lending collateral	1,800		1,831
U.S. Treasury / Agency
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	2,102		2,214
Non-U.S.
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	24,784		25,829
Corporate and asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	37,669		39,063
Mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	19,805		20,489
Municipal
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	5,119		5,513
Fair Value, Recurring [Member] | Level 1
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	1,562		1,680
Equity securities, at fair value	3,514		4,705
Short-term investments, at fair value (amortized cost – $3,408 and $3,147)	1,954		1,744
Other investments, at fair value	253	[1]	286	[2]
Securities lending collateral	0		0
Investment derivative instruments, assets	163		58
Other Derivative Instruments Fair Value	3
Separate Account Asset	5,468		5,461
Total assets measured at fair value	12,917	[1]	13,934	[2]
Investment derivative instruments, liabilities	212		166
Other derivative instruments, liability	63		16
Liabilities Related to Investment Contracts, Fair Value Disclosure	275		182
Fair Value, Recurring [Member] | Level 1 | U.S. Treasury / Agency
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	1,562		1,680
Fair Value, Recurring [Member] | Level 1 | Non-U.S.
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	0		0
Fair Value, Recurring [Member] | Level 1 | Corporate and asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	0		0
Fair Value, Recurring [Member] | Level 1 | Mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	0		0
Fair Value, Recurring [Member] | Level 1 | Municipal
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	0		0
Fair Value, Recurring [Member] | Level 1 | GLB
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	0	[3]	0	[4]
Fair Value, Recurring [Member] | Level 2
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	85,050		88,720
Equity securities, at fair value	0		0
Short-term investments, at fair value (amortized cost – $3,408 and $3,147)	1,449		1,395
Other investments, at fair value	452	[1]	481	[2]
Securities lending collateral	1,800		1,831
Investment derivative instruments, assets	0		0
Other Derivative Instruments Fair Value	0
Separate Account Asset	92		99
Total assets measured at fair value	88,843	[1]	92,526	[2]
Investment derivative instruments, liabilities	0		0
Other derivative instruments, liability	0		0
Liabilities Related to Investment Contracts, Fair Value Disclosure	0		0
Fair Value, Recurring [Member] | Level 2 | U.S. Treasury / Agency
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	540		534
Fair Value, Recurring [Member] | Level 2 | Non-U.S.
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	24,166		25,196
Fair Value, Recurring [Member] | Level 2 | Corporate and asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	35,440		37,014
Fair Value, Recurring [Member] | Level 2 | Mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	19,785		20,463
Fair Value, Recurring [Member] | Level 2 | Municipal
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	5,119		5,513
Fair Value, Recurring [Member] | Level 2 | GLB
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	0	[3]	0	[4]
Fair Value, Recurring [Member] | Level 3
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	2,867		2,708
Equity securities, at fair value	82		77
Short-term investments, at fair value (amortized cost – $3,408 and $3,147)	4		7
Other investments, at fair value	0	[1]	0	[2]
Securities lending collateral	0		0
Investment derivative instruments, assets	0		0
Other Derivative Instruments Fair Value	0
Separate Account Asset	0		0
Total assets measured at fair value	2,953	[1]	2,792	[2]
Investment derivative instruments, liabilities	0		0
Other derivative instruments, liability	0		0
Liabilities Related to Investment Contracts, Fair Value Disclosure	696		745
Fair Value, Recurring [Member] | Level 3 | U.S. Treasury / Agency
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	0		0
Fair Value, Recurring [Member] | Level 3 | Non-U.S.
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	618		633
Fair Value, Recurring [Member] | Level 3 | Corporate and asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	2,229		2,049
Fair Value, Recurring [Member] | Level 3 | Mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	20		26
Fair Value, Recurring [Member] | Level 3 | Municipal
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	0		0
Fair Value, Recurring [Member] | Level 3 | GLB
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	696	[3]	745	[4]
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	89,479		93,108
Equity securities, at fair value	3,596		4,782
Short-term investments, at fair value (amortized cost – $3,408 and $3,147)	3,407		3,146
Other investments, at fair value	705	[1]	767	[2]
Securities lending collateral	1,800		1,831
Investment derivative instruments, assets	163		58
Other Derivative Instruments Fair Value	3
Separate Account Asset	5,560		5,560
Total assets measured at fair value	104,713	[1]	109,252	[2]
Investment derivative instruments, liabilities	212		166
Other derivative instruments, liability	63		16
Liabilities Related to Investment Contracts, Fair Value Disclosure	971		927
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | U.S. Treasury / Agency
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	2,102		2,214
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Non-U.S.
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	24,784		25,829
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Corporate and asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	37,669		39,063
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	19,805		20,489
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Municipal
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	5,119		5,513
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | GLB
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross	696	[3]	745	[4]
Investment Funds Limited Partnerships Partially Owned Investment Companies Fair Value [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Other investments, at fair value	10,947		10,108
Policy Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Other investments, at fair value	244		243
Other Investments [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Other investments, at fair value	$ 51		$ 51

[1] Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $10,947 million, policy loans of $244 million and other investments of $51 million at March 31, 2022 measured using NAV as a practical expedient.

[2] Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $10,108 million, policy loans of $243 million and other investments of $51 million at December 31, 2021 measured using NAV as a practical expedient.

[3] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

[4] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

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Fair Value Measurements (Schedule Of Significant Unobservable Inputs Used In Level 3 Liability Valuations) (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022		Dec. 31, 2021	[3]
Weighted Average [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Long-Duration Contracts, Assumptions by Product and Guarantee, Lapse Rate	[1]	4.40%
Significant Unobservable Inputs Annuitization Rate	[1]	3.70%
Minimum [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Long-Duration Contracts, Assumptions by Product and Guarantee, Lapse Rate		3.00%
Significant Unobservable Inputs Annuitization Rate		0.00%
Maximum [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Long-Duration Contracts, Assumptions by Product and Guarantee, Lapse Rate		31.00%
Significant Unobservable Inputs Annuitization Rate		100.00%
Level 3 | Fair Value, Recurring [Member] | GLB
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross		$ 696	[2]	$ 745

[1] The weighted-average lapse and annuitization rates are determined by weighting each treaty's rates by the GLB contracts fair value.

[2] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

[3] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

XML

Fair Value Measurements (Assets and Liabilities, Measured At Fair Value Using Significant Unobservable Inputs) (Detail) - Level 3 - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022		Mar. 31, 2021
Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	$ 77		$ 73
Transfers Into Level 3, Asset	1		0
Transfers out of Level 3, Assets	0
Change in Net Unrealized Gains (Losses) included in OCI, Assets	0		0
Net Realized Gains/ (Losses), Assets	4		2
Purchases, Assets	3		3
Sales, Assets	(3)		(3)
Settlements, Assets	0		0
Other, Assets	0		0
Balance-End of Period, Assets	82		75
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	4		2
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet Date, Assets	0		0
Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	7		5
Transfers Into Level 3, Asset	0		0
Transfers out of Level 3, Assets	0
Change in Net Unrealized Gains (Losses) included in OCI, Assets	0		0
Net Realized Gains/ (Losses), Assets	0		0
Purchases, Assets	2		1
Sales, Assets	0		0
Settlements, Assets	(5)		(5)
Other, Assets	0		0
Balance-End of Period, Assets	4		1
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	0		0
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet Date, Assets	0		0
Other Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets			10
Transfers Into Level 3, Asset			0
Change in Net Unrealized Gains (Losses) included in OCI, Assets			0
Net Realized Gains/ (Losses), Assets			0
Purchases, Assets			0
Sales, Assets			0
Settlements, Assets			0
Other, Assets			0
Balance-End of Period, Assets			10
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets			0
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet Date, Assets			0
Available-for-sale Securities [Member] | Non-U.S.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	633		546
Transfers Into Level 3, Asset	18		0
Transfers out of Level 3, Assets	(23)
Change in Net Unrealized Gains (Losses) included in OCI, Assets	(13)		8
Net Realized Gains/ (Losses), Assets	(2)		0
Purchases, Assets	43		121
Sales, Assets	(6)		(7)
Settlements, Assets	(32)		(18)
Other, Assets	0		0
Balance-End of Period, Assets	618		650
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	(2)		0
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet Date, Assets	(13)		10
Available-for-sale Securities [Member] | Corporate and asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	2,049		1,573
Transfers Into Level 3, Asset	29		17
Transfers out of Level 3, Assets	(50)
Change in Net Unrealized Gains (Losses) included in OCI, Assets	(22)		6
Net Realized Gains/ (Losses), Assets	0		(3)
Purchases, Assets	315		169
Sales, Assets	(27)		(25)
Settlements, Assets	(65)		(125)
Other, Assets	0		0
Balance-End of Period, Assets	2,229		1,612
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	0		(3)
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet Date, Assets	(22)		11
Available-for-sale Securities [Member] | Mortgage-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	26		60
Transfers Into Level 3, Asset	0		0
Transfers out of Level 3, Assets	(5)
Change in Net Unrealized Gains (Losses) included in OCI, Assets	0		0
Net Realized Gains/ (Losses), Assets	0		0
Purchases, Assets	0		0
Sales, Assets	0		0
Settlements, Assets	(1)		(9)
Other, Assets	0		0
Balance-End of Period, Assets	20		51
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	0		0
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet Date, Assets	0		0
Guaranteed Minimum Income Benefit [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance - Beginning of Period, Liabilities	745	[1]	1,089	[2]
Transfers into level 3, liability	0		0
Transfers out of Level 3, Liabilities	0
Change in Net Unrealized Gains (losses) included in OCI, Liabilities	0		0
Net Realized Gains/(Losses), Liabilities	(35)	[1]	(319)	[2]
Purchases, Liabilities	0		0
Sales, Liabilities	0		0
Settlements, Liabilities	0		0
Other, Liabilities	(14)	[1]	(10)	[2]
Balance - End of Period, Liabilities	696	[1]	760	[2]
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Liabilities	(35)	[1]	(319)	[2]
Change in Net Unrealized Gains/Losses included in OCI at the Balance Sheet Date, Liabilities	$ 0		$ 0

[1] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

[2] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value.

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Fair Value Measurements (Carrying Values And Fair Values Of Financial Instruments Not Measured At Fair Value) (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	$ 9,888	$ 10,647
Debt Securities, Held-to-maturity	9,852	10,153
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Repurchase agreements	1,406	1,406
Short-term debt	1,474	999
Long-term debt	14,585	15,169
Total liabilities	141,292	140,340
Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	1,126	1,192
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Repurchase agreements	0	0
Short-term Debt, Fair Value	0	0
Long-term Debt, Fair Value	0	0
Trust preferred securities	0	0
Total liabilities	0	0
Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	8,762	9,455
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Repurchase agreements	1,406	1,406
Short-term Debt, Fair Value	1,484	1,019
Long-term Debt, Fair Value	14,702	16,848
Trust preferred securities	425	460
Total liabilities	18,017	19,733
Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	0	0
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Repurchase agreements	0	0
Short-term Debt, Fair Value	0	0
Long-term Debt, Fair Value	0	0
Trust preferred securities	0	0
Total liabilities	0	0
Estimate of Fair Value Measurement [Member]
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Repurchase agreements	1,406	1,406
Short-term Debt, Fair Value	1,484	1,019
Long-term Debt, Fair Value	14,702	16,848
Trust preferred securities	425	460
Total liabilities	18,017	19,733
Reported Value Measurement [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Debt Securities, Held-to-maturity	9,818	10,118
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Repurchase agreements	1,406	1,406
Short-term debt	1,474	999
Long-term debt	14,585	15,169
Trust preferred securities	308	308
Total liabilities	17,773	17,882
U.S. Treasury / Agency
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	1,174	1,244
Debt Securities, Held-to-maturity	1,180	1,213
U.S. Treasury / Agency | Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	1,126	1,192
U.S. Treasury / Agency | Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	48	52
U.S. Treasury / Agency | Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	0	0
U.S. Treasury / Agency | Reported Value Measurement [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Debt Securities, Held-to-maturity	1,180	1,213
Non-U.S.
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	1,191	1,262
Debt Securities, Held-to-maturity	1,185	1,201
Non-U.S. | Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	0	0
Non-U.S. | Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	1,191	1,262
Non-U.S. | Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	0	0
Non-U.S. | Reported Value Measurement [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Debt Securities, Held-to-maturity	1,180	1,196
Corporate and asset-backed securities
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	1,935	2,201
Debt Securities, Held-to-maturity	1,913	2,032
Corporate and asset-backed securities | Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	0	0
Corporate and asset-backed securities | Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	1,935	2,201
Corporate and asset-backed securities | Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	0	0
Corporate and asset-backed securities | Reported Value Measurement [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Debt Securities, Held-to-maturity	1,885	2,004
Mortgage-backed securities
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	1,684	1,803
Debt Securities, Held-to-maturity	1,689	1,731
Mortgage-backed securities | Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	0	0
Mortgage-backed securities | Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	1,684	1,803
Mortgage-backed securities | Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	0	0
Mortgage-backed securities | Reported Value Measurement [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Debt Securities, Held-to-maturity	1,689	1,730
Municipal
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	3,904	4,137
Debt Securities, Held-to-maturity	3,885	3,976
Municipal | Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	0	0
Municipal | Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	3,904	4,137
Municipal | Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Held to maturity, Fair Value	0	0
Municipal | Reported Value Measurement [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Debt Securities, Held-to-maturity	$ 3,884	$ 3,975

XML

Reinsurance (Reinsurance Recoverable on Ceded Reinsurance) (Details) - USD ($) $ in Millions		Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Reinsurance Disclosures [Abstract]
Reinsurance recoverable on unpaid losses and loss expenses	[1]	$ 16,646	$ 16,184	$ 14,860	$ 14,647
Reinsurance Recoverables on Unpaid Losses, Allowance		276	271
Reinsurance recoverable on paid losses and loss expenses	[1]	1,115	1,182
Reinsurance Recoverables on Paid Losses, Allowance		53	58
Reinsurance recoverable on losses and loss expenses, net of valuation allowance - $329 and $329	[1]	17,761	17,366
Reinsurance Recoverable, Allowance for Credit Loss, Total		329	329	$ 317	$ 314
Reinsurance recoverable on policy benefits	[1]	208	213
Reinsurance Recoverables on Future Policy Benefits, Allowance		$ 4	$ 4

[1] Net of valuation allowance for uncollectible reinsurance.

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Reinsurance, Allowance (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Reinsurance Disclosures [Abstract]
Reinsurance Recoverable, Allowance for Credit Loss, Beginning of period	$ 329	$ 314
Provision for uncollectible reinsurance	3	3
Write-offs charged against the valuation allowance	(4)	0
Foreign exchange revaluation	1	0
Reinsurance Recoverable, Allowance for Credit Loss, end of period	$ 329	$ 317

XML

Unpaid losses and loss expenses (RF) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Unpaid Losses and Loss Expenses [Roll Forward]
Gross unpaid losses and loss expenses – beginning of period		$ 72,943	$ 67,811
Reinsurance recoverable on unpaid losses – beginning of period (1)	[1]	(16,184)	(14,647)
Net unpaid losses and loss expenses – beginning of period		56,759	53,164
Current Year Claims and Claims Adjustment Expense		5,192	5,249
Prior Year Claims and Claims Adjustment Expense	[2]	(405)	(196)
Total, Incurred		4,787	5,053
Net loss and loss expenses paid, Current Year		792	732
Net loss and loss expenses paid, Prior Years		3,569	3,161
Total, Paid		4,361	3,893
Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Revaluation And Other		13	71
Net unpaid losses and loss expenses – end of period		57,198	54,395
Reinsurance recoverable on unpaid losses (1)	[1]	16,646	14,860
Gross unpaid losses and loss expenses – end of period		73,844	69,255
prior period development, net adjustments		165	$ 4
Liability for Unpaid Claims and Claims Adjustment Expense, Period Increase (Decrease), Gross		901
Liability for Unpaid Claims and Claims Adjustment Expense, Period Increase (Decrease)		$ 439

[1] Net of valuation allowance for uncollectible reinsurance.

[2] Relates to prior period loss reserve development only and excludes prior period development related to reinstatement premiums, expense adjustments and earned premiums totaling $165 million and $4 million for the three months ended March 31, 2022 and 2021, respectively.

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Unpaid losses and loss expenses Unpaid losses and loss expenses (PPD table) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	$ (240)	$ (192)
North America Commercial P&C Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(108)	(127)
North America Personal P&C Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(51)	(40)
North American Agriculture Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(26)	(2)
Overseas General Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(60)	(25)
Global Reinsurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(3)	(7)
Corporate Segment [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	8	9
Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(228)	(155)
Short Tail [Member] | North America Commercial P&C Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(88)	(81)
Short Tail [Member] | North America Personal P&C Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(51)	(40)
Short Tail [Member] | North American Agriculture Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(26)	(2)
Short Tail [Member] | Overseas General Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(60)	(25)
Short Tail [Member] | Global Reinsurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(3)	(7)
Short Tail [Member] | Corporate Segment [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	0	0
Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(12)	(37)
Long Tail [Member] | North America Commercial P&C Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(20)	(46)
Long Tail [Member] | North America Personal P&C Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	0	0
Long Tail [Member] | North American Agriculture Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	0	0
Long Tail [Member] | Overseas General Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	0	0
Long Tail [Member] | Global Reinsurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	0	0
Long Tail [Member] | Corporate Segment [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	$ 8	$ 9

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Unpaid losses and loss expenses Unpaid losses and loss expenses (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	$ (240)	$ (192)
Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(12)	(37)
Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(228)	(155)
North America Commercial P&C Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(108)	(127)
North America Commercial P&C Insurance [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(20)	(46)
North America Commercial P&C Insurance [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(88)	(81)
North America Commercial P&C Insurance [Member] | Accident years 2018 - 2019 [Member] | Surety Product Line [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development		(49)
North America Commercial P&C Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2020 | Surety Product Line [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(38)
North America Commercial P&C Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2020 | Property and Inland Marine [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development		(25)
North America Commercial P&C Insurance [Member] | Accident Years 2019 - 2020 | First Party Cyber risk [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development		41
North America Commercial P&C Insurance [Member] | Accident Years 2019 - 2020 | Accident and Health Insurance Product Line [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development		(48)
North America Commercial P&C Insurance [Member] | Accident years 2017 and prior | Environmental lines [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development		(35)
North America Commercial P&C Insurance [Member] | Accident years 2017 and prior | Workers' Compensation Insurance [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(38)
North America Commercial P&C Insurance [Member] | Accident years 2019 and prior [Member] | Commercial Excess and Umbrella [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	60
North America Commercial P&C Insurance [Member] | Accident years 2020 and 2021 [Member] | Accident and Health Insurance Product Line [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(76)
North America Commercial P&C Insurance [Member] | Accident years 2020 and 2021 [Member] | Property and Casualty, Personal Insurance [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(38)
North America Commercial P&C Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2021 [Member] | Property, Liability and Casualty Insurance Product Line | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	21
North America Commercial P&C Insurance [Member] | Accident years 2016 and 2017 | Professional Malpractice Liability Insurance [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development		(51)
North America Commercial P&C Insurance [Member] | Accident years 2015 to 2019 [Member] | Commercial Excess and Umbrella [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development		57
North America Agricultural Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(26)	(2)
North America Agricultural Insurance [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	0	0
North America Agricultural Insurance [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(26)	(2)
North America Agricultural Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2021 [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(26)
Corporate Segment [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	8	9
Corporate Segment [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	8	9
Corporate Segment [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	0	0
Overseas General Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(60)	(25)
Overseas General Insurance [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	0	0
Overseas General Insurance [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(60)	(25)
Overseas General Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2020
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development		(25)
Overseas General Insurance [Member] | Accident years 2020 and 2021 [Member] | Accident and Health Insurance Product Line [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(22)
Overseas General Insurance [Member] | Accident years 2020 and 2021 [Member] | Property, Liability and Casualty Insurance Product Line | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(24)
North America Personal P&C Insurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(51)	(40)
North America Personal P&C Insurance [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	0	0
North America Personal P&C Insurance [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(51)	(40)
North America Personal P&C Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2020
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development		(40)
North America Personal P&C Insurance [Member] | Short-Duration Insurance Contract, Accident Year 2021 [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(51)
Global Reinsurance [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	(3)	(7)
Global Reinsurance [Member] | Long Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	0	0
Global Reinsurance [Member] | Short Tail [Member]
Liability for Claims and Claims Adjustment Expense [Line Items]
Net Prior Period Development	$ (3)	$ (7)

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Commitments, Contingencies, And Guarantees (Narrative) (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Financial Instruments Owned and Pledged as Collateral [Line Items]
Derivative liability subject to a master netting agreement	$ 107	$ 123
Repurchase agreements	1,406	1,406
Purchase Commitment, Remaining Minimum Amount Committed	622
Carrying value of limited partnerships and partially-owned investment companies included in other investments	10,700	9,800
Funding commitments relating to limited partnerships and partially-owned investment companies	7,200	7,200
Unrecognized tax benefits	64
Operating Lease, Right-of-Use Asset	437	445
Operating Lease, Liability	$ 470	$ 484
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets

XML

Commitments, Contingencies, And Guarantees (Balance Sheet Locations, Fair Values In Asset Or (Liability) Position, And Notional Values/Payment Provisions Of Derivative Instruments) (Detail) - USD ($) $ in Millions		Mar. 31, 2022	Dec. 31, 2021
Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		$ 7,478	$ 6,182
Options/Futures contracts on notes, bonds, and equities
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		9,282	12,944
Convertible securities
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	[1]	19	12
Total investment and embedded derivative instruments
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		179	69
Fair Value, Liability		(212)	(166)
Derivative, Notional Amount		16,779	19,138
Futures contracts on equities
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	[2]	814	905
Other
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		79	3
Other Derivative Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount		893	908
Guaranteed Minimum Income Benefit [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	[3]	0	0
Derivative, Notional Amount	[3]	1,558	1,432
Other Assets [Member] | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		58	25
Other Assets [Member] | Options/Futures contracts on notes, bonds, and equities
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		105	33
Other Assets [Member] | Futures contracts on equities
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	[2]	0	0
Other Assets [Member] | Other
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		3	0
Other Assets [Member] | Other Derivative Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		3	0
Fixed Maturities [Member] | Convertible securities
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	[1]	16	11
Equity Securities [Member] | Convertible securities
Derivatives, Fair Value [Line Items]
Fair Value, Liability	[1]	0	0
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Fair Value, Liability		(154)	(139)
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Options/Futures contracts on notes, bonds, and equities
Derivatives, Fair Value [Line Items]
Fair Value, Liability		(58)	(27)
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Futures contracts on equities
Derivatives, Fair Value [Line Items]
Fair Value, Liability	[2]	(63)	(16)
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Other
Derivatives, Fair Value [Line Items]
Fair Value, Liability		0	0
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Other Derivative Instruments [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Liability		(63)	(16)
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Guaranteed Minimum Income Benefit [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Liability	[3]	$ (696)	$ (745)

[1] Includes fair value of embedded derivatives.

[2] Related to GMDB and GLB book of business.

[3] Note that the payment provision related to GLB is the net amount at risk. The concept of a notional value does not apply to the GLB reinsurance contracts.

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Commitments, Contingencies, And Guarantees (Net Realized Gains (Losses) Of Derivative Instrument Activity In Consolidated Statement Of Operations) (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative		$ 125	$ 383
Foreign currency forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative		(54)	(16)
All Other Futures Contracts, Options and equities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative		102	125
Convertible securities
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative	[1]	(1)	0
Total investment and embedded derivative instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative		47	109
GLB
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative		35	319
Futures contracts on equities
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative	[2]	42	(44)
Other
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative		1	(1)
Guaranteed Living Benefit And Other Derivative Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative		$ 78	$ 274

[1] Includes embedded derivatives.

[2] Related to GMDB and GLB book of business.

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Commitments, contingencies, and guarantees Commitments, Contingencies, And Guarantees (Transactions accounted for as secured borrowings) (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	$ 1,800	$ 1,831
Securities lending payable	1,800	1,831
Cash [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	1,000	931
U.S. Treasury / Agency | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	106	128
Foreign [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	663	752
Corporate and asset-backed securities | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	23	12
Mortgage-backed securities | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	0	1
Equity Securities [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	$ 8	$ 7

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Commitments, contingencies, and guarantees Commitments, Contingencies, And Guarantees (Collateral pledged under repurchase agreements) (Details) - USD ($) $ in Millions		Mar. 31, 2022	Dec. 31, 2021
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		$ 1,443	$ 1,420
Repurchase agreements		1,406	1,406
Cash [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		43	29
U.S. Treasury / Agency
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		102	103
Mortgage-backed securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		1,298	1,288
Repurchase Agreements [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Secured Borrowings, Gross, Difference, Amount	[1]	37	14
Maturity Less than 30 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		401
Maturity Less than 30 Days [Member] | Cash [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		43
Maturity Less than 30 Days [Member] | U.S. Treasury / Agency
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		0
Maturity Less than 30 Days [Member] | Mortgage-backed securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		358
Maturity 30 to 90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		466	103
Maturity 30 to 90 Days [Member] | Cash [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		0	0
Maturity 30 to 90 Days [Member] | U.S. Treasury / Agency
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		0	103
Maturity 30 to 90 Days [Member] | Mortgage-backed securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		466	0
Maturity Greater than 90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		576	1,317
Maturity Greater than 90 Days [Member] | Cash [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		0	29
Maturity Greater than 90 Days [Member] | U.S. Treasury / Agency
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		102	0
Maturity Greater than 90 Days [Member] | Mortgage-backed securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements		$ 474	$ 1,288

[1] Per the repurchase agreements, the amount of collateral posted is required to exceed the amount of gross liability.

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Shareholders' equity (Details)		3 Months Ended
	Jan. 17, 2022 shares	Mar. 31, 2022 SFr / shares shares	Mar. 31, 2021 shares	Dec. 31, 2021 SFr / shares shares	May 20, 2021 $ / shares	May 20, 2020 $ / shares
Stockholders' Equity Note [Abstract]
Common Shares, par value | SFr / shares		SFr 24.15		SFr 24.15
Common Shares in treasury, shares		35,880,387		47,448,502
Treasury Stock, Shares, Retired	14,465,400
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		1,972,615
Common Stock, Dividend Rate Approved | $ / shares					$ 0.80	$ 0.78
Annual dividend per share approved by shareholders | $ / shares					$ 3.20	$ 3.12
Nov 2020 Stock Repurchase Plan
Stockholders' Equity Note [Abstract]
Number of shares repurchased			3,110,000

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Shareholders' equity Dividends Declared (Details)	3 Months Ended
	Mar. 31, 2022 $ / shares	Mar. 31, 2022 SFr / shares	Mar. 31, 2021 $ / shares	Mar. 31, 2021 SFr / shares
United States of America, Dollars
Equity, Class of Treasury Stock [Line Items]
Common Stock, Dividends, Per Share, Declared | $ / shares	$ 0.80		$ 0.78
Switzerland, Francs
Equity, Class of Treasury Stock [Line Items]
Common Stock, Dividends, Per Share, Declared | SFr / shares		SFr 0.74		SFr 0.70

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Shareholders' equity Share Repurchases (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Apr. 28, 2022	Mar. 31, 2022	Mar. 31, 2021	Jul. 19, 2021	Feb. 01, 2021	Nov. 19, 2020
Nov 2020 Stock Repurchase Plan
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount					$ 2,500	$ 1,500
Number of shares repurchased			3,110,000
Cost of shares repurchased			$ 519
Repurchase authorization remaining at end of period			$ 1,982
CB_Increase(Decrease)StockRepurchaseProgramAuthorizedAmount					$ 1,000
July 2021 Stock Repurchase Plan
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount				$ 5,000
Number of shares repurchased		4,869,900
Cost of shares repurchased		$ 1,001
Repurchase authorization remaining at end of period		$ 1,648
Subsequent Event [Member] | July 2021 Stock Repurchase Plan
Equity, Class of Treasury Stock [Line Items]
Number of shares repurchased	115,000
Cost of shares repurchased	$ 24
Repurchase authorization remaining at end of period	$ 1,624

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Share-Based Compensation (Detail) - $ / shares		3 Months Ended
	Feb. 24, 2022	Mar. 31, 2022
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years		3 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period		3 years
Award term period in years		10 years
Stock options granted	1,702,679
Weighted-average grant date fair value for stock options granted	$ 35.21
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years		4 years
Restricted stock awards granted to employees and officers of the company	809,644
Grant date fair value of awards except for options granted to employees and officers of the company	$ 199.03
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years		3 years
Restricted stock awards granted to employees and officers of the company	294,229
Grant date fair value of awards except for options granted to employees and officers of the company	$ 199.03
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years		4 years
Restricted stock awards granted to employees and officers of the company	295,195
Grant date fair value of awards except for options granted to employees and officers of the company	$ 199.03

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Postretirement benefits Components of net periodic benefit costs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	$ 1	$ 1
Non-service (benefit) cost	(55)	(51)
Net periodic benefit cost (benefit)	(54)	(50)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	0	0
Interest cost	0	0
Expected return on plan assets	0	0
Defined Benefit Plan, Amortization of Gain (Loss)	0	0
Amortization of prior service cost	0	(20)
Settlements	0	0
Non-service (benefit) cost	0	(20)
Net periodic benefit cost (benefit)	0	(20)
Losses and loss expenses | Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	0	0
Non-service (benefit) cost	(5)	(5)
Losses and loss expenses | Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	0	0
Non-service (benefit) cost	0	(2)
Administrative Expense | Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	1	1
Non-service (benefit) cost	(50)	(46)
Administrative Expense | Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	0	0
Non-service (benefit) cost	0	(18)
Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	1	1
Interest cost	6	5
Expected return on plan assets	(11)	(11)
Defined Benefit Plan, Amortization of Gain (Loss)	0	1
Amortization of prior service cost	0	0
Settlements	0	0
Non-service (benefit) cost	(5)	(5)
Net periodic benefit cost (benefit)	(4)	(4)
UNITED STATES | Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans
Service cost	0	0
Interest cost	21	18
Expected return on plan assets	(71)	(64)
Defined Benefit Plan, Amortization of Gain (Loss)	0	0
Amortization of prior service cost	0	0
Settlements	0	0
Non-service (benefit) cost	(50)	(46)
Net periodic benefit cost (benefit)	$ (50)	$ (46)

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Other Income and Expenses (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Income (Loss) from Equity Method Investments	[1]	$ 361	$ 497
Gains Losses On Fair Value Changes In Separate Account Assets	[2]	(31)	4
Excise and Sales Taxes		(4)	(5)
Other Nonoperating Expense		(16)	(6)
Other Nonoperating Income (Expense)		310	490
Huatai Group [Member]
Income (Loss) from Equity Method Investments		$ 40	$ 49

[1] Equity in net income of partially-owned entities includes $40 million and $49 million attributable to our investments in Huatai (Huatai Group, Huatai P&C, and Huatai Life) for the three months ended March 31, 2022 and 2021, respectively.

[2] Related to gains (losses) from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP.

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Segment Information (Operations By Segment) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Net premiums written	$ 9,199	$ 8,662
Net premiums earned	8,746	8,221
Losses and loss expenses	4,787	5,053
Policy benefits	145	167
Policy acquisition costs	1,737	1,665
Administrative expenses	778	744
Underwriting income (loss)	1,299	592
Net investment income (loss)	822	863
Other (income) expense	(310)	(490)
Amortization of purchased intangibles	71	72
Segment Income (loss)	2,360	1,873
Net realized gains (losses) (includes $(136) and $24 reclassified from AOCI)	101	887
Interest expense	132	122
Income tax expense	355	338
Net income (loss)	1,974	2,300
Segment Reconciling Items
Segment Reporting Information [Line Items]
Net premiums written	0	0
Net premiums earned	0	0
Losses and loss expenses	1	(1)
Policy benefits	(31)	4
Policy acquisition costs	0	0
Administrative expenses	0	0
Underwriting income (loss)	30	(3)
Net investment income (loss)	(63)	(41)
Other (income) expense	(32)	(45)
Amortization of purchased intangibles	0	0
Segment Income (loss)	(1)	1
Net realized gains (losses) (includes $(136) and $24 reclassified from AOCI)	1	(1)
Interest expense	0	0
Income tax expense	0	0
Net income (loss)	0	0
North America Commercial P&C Insurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	4,039	3,664
Net premiums earned	4,114	3,674
Losses and loss expenses	2,497	2,560
Policy benefits	0	0
Policy acquisition costs	573	514
Administrative expenses	265	254
Underwriting income (loss)	779	346
Net investment income (loss)	489	540
Other (income) expense	6	2
Amortization of purchased intangibles	0	0
Segment Income (loss)	1,262	884
North America Personal P&C Insurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	1,180	1,098
Net premiums earned	1,247	1,184
Losses and loss expenses	713	819
Policy benefits	0	0
Policy acquisition costs	260	247
Administrative expenses	69	60
Underwriting income (loss)	205	58
Net investment income (loss)	59	65
Other (income) expense	1	1
Amortization of purchased intangibles	2	3
Segment Income (loss)	261	119
North America Agricultural Insurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	62	183
Net premiums earned	(29)	110
Losses and loss expenses	(92)	85
Policy benefits	0	0
Policy acquisition costs	12	12
Administrative expenses	(1)	3
Underwriting income (loss)	52	10
Net investment income (loss)	7	7
Other (income) expense	0	0
Amortization of purchased intangibles	7	7
Segment Income (loss)	52	10
Overseas General Insurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	3,079	2,890
Net premiums earned	2,628	2,478
Losses and loss expenses	1,389	1,263
Policy benefits	0	0
Policy acquisition costs	679	668
Administrative expenses	269	266
Underwriting income (loss)	291	281
Net investment income (loss)	147	141
Other (income) expense	2	1
Amortization of purchased intangibles	14	12
Segment Income (loss)	422	409
Global Reinsurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	253	207
Net premiums earned	235	180
Losses and loss expenses	115	120
Policy benefits	0	0
Policy acquisition costs	62	45
Administrative expenses	9	8
Underwriting income (loss)	49	7
Net investment income (loss)	85	70
Other (income) expense	0	0
Amortization of purchased intangibles	0	0
Segment Income (loss)	134	77
Life Insurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	586	620
Net premiums earned	551	595
Losses and loss expenses	154	198
Policy benefits	176	163
Policy acquisition costs	151	179
Administrative expenses	84	82
Underwriting income (loss)	(14)	(27)
Net investment income (loss)	103	98
Other (income) expense	(28)	(34)
Amortization of purchased intangibles	2	1
Segment Income (loss)	115	104
Segment Corporate and Other
Segment Reporting Information [Line Items]
Net premiums written	0	0
Net premiums earned	0	0
Losses and loss expenses	10	9
Policy benefits	0	0
Policy acquisition costs	0	0
Administrative expenses	83	71
Underwriting income (loss)	(93)	(80)
Net investment income (loss)	(5)	(17)
Other (income) expense	(259)	(415)
Amortization of purchased intangibles	46	49
Segment Income (loss)	115	269
Net realized gains (losses) (includes $(136) and $24 reclassified from AOCI)	100	888
Interest expense	132	122
Income tax expense	355	338
Net income (loss)	$ (272)	$ 697

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Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net income (loss)	$ 1,974	$ 2,300
Weighted-average shares outstanding	425,805,105	450,539,568
Share-based compensation plans	3,985,729	2,795,971
Weighted-average shares outstanding and assumed conversions	429,790,834	453,335,539
Basic earnings (loss) per share (US$ per share)	$ 4.64	$ 5.10
Diluted earnings (loss) per share (US$ per share)	$ 4.59	$ 5.07
Potential anti-dilutive share conversions	681,032	1,952,612