10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the Quarterly Period Ended September 30, 2016

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)

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 þ                                              NO  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 and post such files).

YES þ                                                 NO  ¨

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

Large accelerated filer þ		Accelerated filer ¨
Non-accelerated filer ¨	(Do not check if a smaller reporting company)	Smaller reporting company ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

YES ¨                                                NO  þ

The number of registrant’s Common Shares (CHF 24.15 par value) outstanding as of October 21, 2016 was 465,339,149.

CHUBB LIMITED

INDEX TO FORM 10-Q

			Page
Part I.	FINANCIAL INFORMATION
Item 1.	Financial Statements:
	Consolidated Balance Sheets (Unaudited) September 30, 2016 and December 31, 2015		3
	Consolidated Statements of Operations and Comprehensive Income (Unaudited) Three and Nine Months Ended September 30, 2016 and 2015		4
	Consolidated Statements of Shareholders' Equity (Unaudited) Nine Months Ended September 30, 2016 and 2015		5
	Consolidated Statements of Cash Flows (Unaudited) Nine Months Ended September 30, 2016 and 2015		6
	Notes to Consolidated Financial Statements (Unaudited)
	Note 1.	General	7
	Note 2.	Acquisitions	9
	Note 3.	Investments	12
	Note 4.	Fair value measurements	17
	Note 5.	Assumed life reinsurance programs involving minimum benefit guarantees under variable annuity contracts	27
	Note 6.	Goodwill and other intangible assets	27
	Note 7.	Debt	28
	Note 8.	Commitments, contingencies, and guarantees	30
	Note 9.	Shareholders’ equity	35
	Note 10.	Share-based compensation	36
	Note 11.	Postretirement benefits	36
	Note 12.	Segment information	38
	Note 13.	Earnings per share	42
	Note 14.	Information provided in connection with outstanding debt of subsidiaries	43
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		50
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		102
Item 4.	Controls and Procedures		106
Part II.	OTHER INFORMATION
Item 1.	Legal Proceedings		107
Item 1A.	Risk Factors		107
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds and Issuer Repurchases of Equity Securities		108
Item 6.	Exhibits		108

2

PART I FINANCIAL INFORMATION

ITEM 1. Financial Statements

CONSOLIDATED BALANCE SHEETS (Unaudited)

Chubb Limited and Subsidiaries

	September 30			December 31
(in millions of U.S. dollars, except share and per share data)	2016			2015
Assets
Investments
Fixed maturities available for sale, at fair value (amortized cost – $78,630 and $43,149)	$	81,358		$	43,587
(includes hybrid financial instruments of $5 and $31)
Fixed maturities held to maturity, at amortized cost (fair value – $11,366 and $8,552)	10,927			8,430
Equity securities, at fair value (cost – $695 and $441)	803			497
Short-term investments, at fair value and amortized cost	3,548			10,446
Other investments (cost – $4,170 and $2,993)	4,400			3,291
Total investments	101,036			66,251
Cash	870			1,775
Securities lending collateral	1,140			1,046
Accrued investment income	915			513
Insurance and reinsurance balances receivable	8,493			5,323
Reinsurance recoverable on losses and loss expenses	13,448			11,386
Reinsurance recoverable on policy benefits	195			187
Deferred policy acquisition costs	4,238			2,873
Value of business acquired	368			395
Goodwill	15,481			4,796
Other intangible assets	6,991			887
Prepaid reinsurance premiums	2,449			2,082
Deferred tax assets	—			318
Investments in partially-owned insurance companies	665			653
Other assets	5,521			3,821
Total assets	$	161,810		$	102,306
Liabilities
Unpaid losses and loss expenses	$	61,347		$	37,303
Unearned premiums	15,054			8,439
Future policy benefits	5,010			4,807
Insurance and reinsurance balances payable	4,885			4,270
Securities lending payable	1,141			1,047
Accounts payable, accrued expenses, and other liabilities	9,748			6,205
Deferred tax liabilities	1,418			—
Repurchase agreements	1,406			1,404
Short-term debt	500			—
Long-term debt	12,621			9,389
Trust preferred securities	308			307
Total liabilities	113,438			73,171
Commitments and contingencies
Shareholders’ equity
Common Shares (CHF 24.15 par value; 479,783,864 and 342,832,412 shares issued; 465,286,110 and 324,563,441 shares outstanding)	11,121			7,833
Common Shares in treasury (14,497,754 and 18,268,971 shares)	(1,550		)	(1,922		)
Additional paid-in capital	15,601			4,481
Retained earnings	22,003			19,478
Accumulated other comprehensive income (loss) (AOCI)	1,197			(735		)
Total shareholders’ equity	48,372			29,135
Total liabilities and shareholders’ equity	$	161,810		$	102,306

See accompanying notes to the consolidated financial statements

3

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Unaudited)

Chubb Limited and Subsidiaries

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars, except per share data)	2016			2015			2016			2015
Revenues
Net premiums written	$	7,573		$	4,709		$	21,207		$	13,569
Decrease (increase) in unearned premiums	115			10			483			(563		)
Net premiums earned	7,688			4,719			21,690			13,006
Net investment income	739			549			2,121			1,662
Net realized gains (losses):
Other-than-temporary impairment (OTTI) losses gross	(12		)	(35		)	(99		)	(62		)
Portion of OTTI losses recognized in other comprehensive income (OCI)	—			5			8			11
Net OTTI losses recognized in income	(12		)	(30		)	(91		)	(51		)
Net realized gains (losses) excluding OTTI losses	112			(367		)	(419		)	(309		)
Total net realized gains (losses) (includes $33, $(49), $(117), and $(18) reclassified from AOCI)	100			(397		)	(510		)	(360		)
Total revenues	8,527			4,871			23,301			14,308
Expenses
Losses and loss expenses	4,269			2,643			12,197			7,182
Policy benefits	155			89			427			384
Policy acquisition costs	1,514			771			4,487			2,205
Administrative expenses	772			568			2,373			1,700
Interest expense	152			68			451			207
Other (income) expense	(91		)	12			(92		)	(61		)
Amortization of purchased intangibles	4			51			16			136
Chubb integration expenses	115			9			361			9
Total expenses	6,890			4,211			20,220			11,762
Income before income tax	1,637			660			3,081			2,546
Income tax expense (includes $11, $(4), $16 and $10 on reclassified unrealized gains and losses)	277			132			556			395
Net income	$	1,360		$	528		$	2,525		$	2,151
Other comprehensive income (loss)
Unrealized appreciation (depreciation)	$	247		$	(321	)	$	2,099		$	(696	)
Reclassification adjustment for net realized (gains) losses included in net income	(33		)	49			117			18
	214			(272		)	2,216			(678		)
Change in:
Cumulative translation adjustment	(124		)	(575		)	269			(860		)
Pension liability	5			3			8			10
Other comprehensive income (loss), before income tax	95			(844		)	2,493			(1,528		)
Income tax (expense) benefit related to OCI items	(79		)	45			(561		)	145
Other comprehensive income (loss)	16			(799		)	1,932			(1,383		)
Comprehensive income (loss)	$	1,376		$	(271	)	$	4,457		$	768
Earnings per share
Basic earnings per share	$	2.90		$	1.63		$	5.48		$	6.60
Diluted earnings per share	$	2.88		$	1.62		$	5.44		$	6.53

See accompanying notes to the consolidated financial statements

4

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited)

Chubb Limited and Subsidiaries

	Nine Months Ended
	September 30
(in millions of U.S. dollars)	2016			2015
Common Shares
Balance – beginning of period	$	7,833		$	8,055
Shares issued for Chubb Corp acquisition	3,288			—
Dividends declared on Common Shares – par value reduction	—			(222		)
Balance – end of period	11,121			7,833
Common Shares in treasury
Balance – beginning of period	(1,922		)	(1,448		)
Common Shares repurchased	—			(734		)
Net shares redeemed under employee share-based compensation plans	372			208
Balance – end of period	(1,550		)	(1,974		)
Additional paid-in capital
Balance – beginning of period	4,481			5,145
Shares issued for Chubb Corp acquisition	11,916			—
Equity awards assumed in Chubb Corp acquisition	323			—
Net shares redeemed under employee share-based compensation plans	(365		)	(157		)
Exercise of stock options	(44		)	(43		)
Share-based compensation expense and other	250			155
Funding of dividends declared to Retained earnings	(960		)	(435		)
Balance – end of period	15,601			4,665
Retained earnings
Balance – beginning of period	19,478			16,644
Net income	2,525			2,151
Funding of dividends declared from Additional paid-in capital	960			435
Dividends declared on Common Shares	(960		)	(435		)
Balance – end of period	22,003			18,795
Accumulated other comprehensive income (loss)
Net unrealized appreciation on investments
Balance – beginning of period	874			1,851
Change in period, before reclassification from AOCI, net of income tax      benefit (expense) of $(559) and $102	1,540			(594		)
Amounts reclassified from AOCI, net of income tax benefit of $16 and $10	133			28
Change in period, net of income tax benefit (expense) of $(543) and $112	1,673			(566		)
Balance – end of period	2,547			1,285
Cumulative translation adjustment
Balance – beginning of period	(1,539		)	(581		)
Change in period, net of income tax benefit (expense) of $(18) and $35	251			(825		)
Balance – end of period	(1,288		)	(1,406		)
Pension liability adjustment
Balance – beginning of period	(70		)	(79		)
Change in period, net of income tax expense of nil and $(2)	8			8
Balance – end of period	(62		)	(71		)
Accumulated other comprehensive income (loss)	1,197			(192		)
Total shareholders’ equity	$	48,372		$	29,127

See accompanying notes to the consolidated financial statements

5

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

Chubb Limited and Subsidiaries

	Nine Months Ended September 30
(in millions of U.S. dollars)	2016			2015
Cash flows from operating activities
Net income	$	2,525		$	2,151
Adjustments to reconcile net income to net cash flows from operating activities
Net realized (gains) losses	510			360
Amortization of premiums/discounts on fixed maturities	558			115
Amortization of UPR related to the Chubb Corp acquisition	1,415			—
Deferred income taxes	(13		)	53
Unpaid losses and loss expenses	916			(225		)
Unearned premiums	(547		)	353
Future policy benefits	129			157
Insurance and reinsurance balances payable	149			219
Accounts payable, accrued expenses, and other liabilities	(109		)	(179		)
Income taxes payable	308			(8		)
Insurance and reinsurance balances receivable	(201		)	15
Reinsurance recoverable on losses and loss expenses	(241		)	421
Reinsurance recoverable on policy benefits	(6		)	20
Deferred policy acquisition costs	(1,316		)	(354		)
Prepaid reinsurance premiums	33			(182		)
Other	(273		)	(217		)
Net cash flows from operating activities	3,837			2,699
Cash flows from investing activities
Purchases of fixed maturities available for sale	(23,837		)	(13,029		)
Purchases of to be announced mortgage-backed securities	—			(31		)
Purchases of fixed maturities held to maturity	(189		)	(39		)
Purchases of equity securities	(100		)	(122		)
Sales of fixed maturities available for sale	13,863			5,202
Sales of to be announced mortgage-backed securities	—			31
Sales of equity securities	963			150
Maturities and redemptions of fixed maturities available for sale	6,936			5,257
Maturities and redemptions of fixed maturities held to maturity	627			552
Net change in short-term investments	11,866			421
Net derivative instruments settlements	(181		)	62
Acquisition of subsidiaries (net of cash acquired of $71 and $620)	(14,248		)	259
Other	26			(138		)
Net cash flows used for investing activities	(4,274		)	(1,425		)
Cash flows from financing activities
Dividends paid on Common Shares	(851		)	(644		)
Common Shares repurchased	—			(758		)
Proceeds from issuance of long-term debt	—			800
Proceeds from issuance of repurchase agreements	1,457			1,478
Repayment of long-term debt	—			(451		)
Repayment of repurchase agreements	(1,455		)	(1,477		)
Proceeds from share-based compensation plans, including windfall tax benefits	117			89
Policyholder contract deposits	473			351
Policyholder contract withdrawals	(247		)	(159		)
Other	(4		)	(6		)
Net cash flows used for financing activities	(510		)	(777		)
Effect of foreign currency rate changes on cash and cash equivalents	42			(114		)
Net (decrease) increase in cash	(905		)	383
Cash – beginning of period	1,775			655
Cash – end of period	$	870		$	1,038
Supplemental cash flow information
Taxes paid	$	360		$	355
Interest paid	$	390		$	188

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

On January 14, 2016, we completed the acquisition of The Chubb Corporation (Chubb Corp), creating a global leader in property and casualty insurance. We have changed our name from ACE Limited to Chubb Limited and plan to adopt the Chubb name globally, although some subsidiaries may continue to use ACE as a part of their name.

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. Effective the first quarter of 2016, 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. This reflects our significantly larger and expanded operations subsequent to our acquisition of Chubb Corp. We have also redefined Corporate to include all run-off asbestos and environmental (A&E) exposures, the results of our run-off Brandywine business, the results of Westchester specialty operations for 1996 and prior years, and certain run-off exposures. Prior period amounts of Chubb Limited (i.e., excluding the historical results of Chubb Corp) contained in this report have been adjusted to conform to the new segment presentation. 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 (consisting of normally recurring accruals) 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 of Chubb Corp are included from the acquisition date forward (i.e., after January 14, 2016). 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 2015 Form 10-K.

b) Accounting guidance adopted in 2016

Presentation of Debt Issuance Costs

In April 2015, the Financial Accounting Standard Board (FASB) issued new guidance related to the accounting for debt issuance costs. The new guidance requires presentation of debt issuance costs in the Consolidated balance sheets as a reduction of the carrying amount of the related debt liability instead of as a deferred charge. We retrospectively adopted this guidance effective January 1, 2016 and reclassified $60 million of debt issuance costs from Other assets to Long term debt ($58 million) and Trust preferred securities ($2 million) as of December 31, 2015.

c) Accounting guidance not yet adopted

Revenue from Contracts with Customers

In May 2014, the FASB issued an accounting standard that supersedes most existing revenue recognition guidance. The standard excludes from its scope the accounting for insurance contracts, leases, financial instruments, and certain other agreements that are governed under other GAAP guidance, but could affect the revenue recognition for certain of our claims management and risk control services. The updated guidance requires an entity to recognize revenue as performance obligations are met, in order to reflect the transfer of promised goods or services to customers in an amount that reflects the consideration the entity is entitled to receive for those goods or services. The standard is effective for us in the first quarter of 2018 with early adoption permitted. The adoption of this guidance is not expected to have a material impact on our financial condition or results of operations.

Short-Duration Contracts

In May 2015, the FASB issued guidance that requires additional disclosures for short-duration insurance contracts. New disclosure will be required to provide more information about initial claim estimates and subsequent adjustments to those estimates, the methodologies and judgments used to estimate claims, and the timing, frequency, and severity of claims. The guidance is effective for us beginning with our 2016 annual reporting on Form 10-K. The guidance requires a change in disclosure only and adoption of this guidance will not have an impact on our financial condition or results of operations.

7

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Financial Instruments – Recognition and Measurement of Financial Assets and Financial Liabilities

In January 2016, the FASB issued guidance that affects the recognition, measurement, presentation, and disclosure of financial instruments. The guidance requires equity investments to be measured at fair value with changes in fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee) and an assessment of a valuation allowance on deferred tax assets related to unrealized losses of available for sale debt securities in combination with other deferred tax assets. The standard is effective for us in the first quarter of 2018. We are in the process of evaluating the effect the updated guidance will have on our financial condition and results of operations.

Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments

In June 2016, the FASB issued guidance on the accounting for credit losses of financial instruments that are measured at amortized cost, including held to maturity securities and reinsurance recoverables, by applying an approach based on the current expected credit losses (CECL). The estimate of expected credit losses should consider historical information, current information, as well as reasonable and supportable forecasts, including estimates of prepayments. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset in order to present the net carrying value at the amount expected to be collected on the financial asset on the Consolidated balance sheet.

The guidance also amends the current available for sale (AFS) security other-than-temporary impairment model by requiring an estimate of the expected credit loss (ECL) only when the fair value is below the amortized cost of the asset. The length of time the fair value of an AFS debt security has been below the amortized cost will no longer impact the determination of whether a credit loss exists. The AFS debt security model will also require the use of a valuation allowance.

The standard is effective for us in the first quarter of 2020 with early adoption permitted in the first quarter of 2019. We will be able to assess the effect of adopting this guidance on our financial condition and results of operations closer to the date of adoption.

Stock Compensation

In March 2016, the FASB issued guidance which requires recognition of the excess tax benefits or deficiencies of awards through net income rather than through additional paid in capital. Additionally, entities can elect to account for forfeitures related to share-based payments either as they occur or through an estimation method. If elected, the change to recognize forfeitures as they occur would be adopted using a modified retrospective approach, with a cumulative effect adjustment recorded to retained earnings. The updated guidance is effective for us in the first quarter of 2017 with early adoption permitted. Adoption of this guidance is not expected to have a material impact on our financial condition and results of operations.

Statement of Cash Flows

In August 2016, the FASB issued guidance clarifying the classification of certain cash receipts and cash payments within the statement of cash flows, including distributions received from equity method investments. The guidance requires entities to make an accounting policy election to present cash flows received either in operating cash flows or investing cash flows based on cumulative equity-method earnings or on the nature of the distributions. The updated guidance is effective for us in the first quarter of 2018 with early adoption permitted. The updated guidance should be applied retrospectively, unless it is impracticable to do so, at which point the guidance should be applied prospectively. We are in the process of evaluating the effect the updated guidance will have on our statements of cash flows.

8

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

2. Acquisitions

The Chubb Corporation

On January 14, 2016, we completed the acquisition of Chubb Corp, a leading provider of middle-market commercial, specialty, surety, and personal insurance for $29.5 billion, comprising $14.3 billion in cash and $15.2 billion in newly-issued stock, based on the Chubb Limited (formerly ACE Limited) closing price on the acquisition date. In addition, we assumed outstanding equity awards to employees and directors with an attributed value of approximately $323 million. The total consideration, including the assumption of equity awards, was $29.8 billion. We financed the cash portion of the transaction through a combination of $9.0 billion sourced from various Chubb Limited and Chubb Corp companies plus $5.3 billionof senior notes, which were issued in November 2015. Refer to Note 7 for additional information on the senior notes.

Upon completion of the merger, each Chubb Corp common share (other than shares held by certain legacy Chubb Corp employee benefit plans) was canceled and converted, in accordance with the procedures set forth in the merger agreement, into the right to receive (i) 0.6019 of a Chubb Limited common share and (ii) $62.93 in cash. In addition, replacement equity awards were issued by Chubb Limited to the holders of Chubb Corp's outstanding equity awards (stock options, restricted stock units, deferred stock units, deferred unit obligations, and performance units).

We believe the Chubb Corp acquisition is highly complementary to our existing business lines, distribution channels, customer segments, and underwriting skills. Chubb Corp has a substantial presence in the U.S. with a broad variety of coverages serving large corporate and upper middle market accounts, middle market and small commercial accounts, and personal lines. Together we are one of the largest commercial insurers in the U.S. Internationally, where legacy ACE is a truly global insurer with extensive presence in 54 countries, Chubb Corp's operations in 25 markets added to our presence and capabilities and positioned us to better pursue important market opportunities globally. The combined company is a leader in a number of global specialty and traditional products such as professional lines, risk management, workers' compensation, accident and health (A&H), and other property and general casualty lines.

9

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

The table below details the purchase consideration and preliminary allocation of assets acquired and liabilities assumed. During the second and third quarters of 2016, we reassessed certain components of our preliminary estimates of assets acquired and liabilities assumed, including the net realizable value for Reinsurance recoverables on losses and loss expenses and Insurance and reinsurance balances receivable and certain components of the Deferred tax liabilities, which resulted in an adjustment to our preliminary estimates that increased Goodwill by $85 million. These estimates remain preliminary and are subject to adjustment. While they are not expected to be materially different than those shown, any material adjustments to the estimates will be reflected, retroactively, as of the date of the acquisition.

(in millions, except per share data)
Purchase consideration
Chubb Limited common shares
Chubb Corp common shares outstanding	228
Per share exchange ratio	0.6019
Common shares issued by Chubb Limited	137
Common share price of Chubb Limited at January 14, 2016	$	111.02
Fair value of common shares issued by Chubb Limited to common shareholders of Chubb Corp	$	15,204
Cash consideration
Chubb Corp common shares outstanding	228
Agreed cash price per share paid to common shareholders of Chubb Corp	$	62.93
Cash consideration paid by Chubb Limited to common shareholders of Chubb Corp	$	14,319
Stock-based awards
Fair value of equity awards issued (1)	$	323
Fair value of purchase consideration	$	29,846
Preliminary estimate of assets acquired and (liabilities) assumed
Cash	$	71
Investments	42,967
Accrued investment income	337
Insurance and reinsurance balances receivable	2,981
Reinsurance recoverable on losses and loss expenses	1,645
Indefinite lived intangible assets	2,860
Finite lived intangible assets	4,795
Prepaid reinsurance premiums	280
Other assets	865
Unpaid losses and loss expenses	(22,906		)
Unearned premiums	(7,033		)
Insurance and reinsurance balances payable	(511		)
Accounts payable, accrued expenses, and other liabilities	(1,935		)
Deferred tax liabilities	(1,335		)
Long-term debt	(3,765		)
Total identifiable net assets acquired	19,316
Goodwill	10,530
Purchase price	$	29,846

⁽¹⁾  The estimated fair value of the replacement equity awards was $525 million, of which $323 million was attributed to service periods prior to the acquisition and was included in the purchase consideration. Refer to Note 10 for further information on these replacement equity awards.

Direct costs related to the Chubb Corp acquisition were expensed as incurred. Chubb integration expenses were $115 million and $361 million for the three and nine months endedSeptember 30, 2016, respectively, and include all internal and external

10

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

costs directly related to the integration activities of the Chubb Corp acquisition, consisting primarily of personnel-related expenses, including severance and employee retention and relocation; consulting fees; and advisor fees. Chubb integration expenses were $9 million for both the three and nine months ended September 30, 2015, consisting primarily of consulting and legal fees.

We recognized goodwill of $10.5 billion, attributable to expected growth and profitability, none of which is expected to be deductible for income tax purposes, indefinite lived intangible assets of $2.9 billion and finite lived intangible assets of $4.8 billion, which will be amortized over their estimated useful lives, ranging from one to 24 years. Refer to Note 6 for additional information.

The following table summarizes the results of the acquired Chubb Corp operations since the acquisition date that have been included within our Consolidated statements of operations:

(in millions of U.S. dollars)	Three Months Ended September 30, 2016		January 14, 2016 to September 30, 2016
Total revenues	$	2,656	$	7,888
Net income	$	483	$	1,064

The following table provides supplemental unaudited pro forma consolidated information for the three and nine months endedSeptember 30, 2016 and 2015, as if Chubb Corp had been acquired as of January 1, 2015. The unaudited pro forma consolidated financial statements are presented solely for informational purposes and are not necessarily indicative of the consolidated results of operations that might have been achieved had the transaction been completed as of the date indicated, nor are they meant to be indicative of any anticipated consolidated future results of operations that the combined company will experience after the transaction.

	Three Months Ended				Nine Months Ended
	September 30				September 30
(in millions of U.S. dollars, except per share data)	2016		2015		2016		2015
Total revenues	$	8,521	$	8,314	$	23,758	$	24,387
Net income	$	1,345	$	1,036	$	2,591	$	3,194
Earnings per share
Basic earnings per share	$	2.87	$	2.23	$	5.54	$	6.85
Diluted earnings per share	$	2.85	$	2.21	$	5.50	$	6.78

Total revenues and net income were higher for the three months ended September 30, 2016, compared to the prior year, principally driven by net realized gains in the current year compared to net realized losses last year, primarily in our variable annuity reinsurance business.  This increase was partially offset by merger-related underwriting actions in the current year, including the purchase of additional reinsurance, which lowered net premiums earned.

Total revenues and net income were lower for the nine months endedSeptember 30, 2016, compared to the prior year, primarily reflecting the merger-related underwriting actions in the current year, as noted above, as well as higher net realized losses in the current year, primarily in our variable annuity reinsurance business.

Prior year acquisition

Fireman's Fund Insurance Company High Net Worth Personal Lines Insurance Business in the U.S. (Fireman's Fund)

On April 1, 2015, we acquired the Fireman's Fund Insurance Company high net worth personal lines insurance business in the U.S., which included the renewal rights for new and existing business and reinsurance of all existing reserves for $365 million in cash. We acquired assets with a fair value of $753 million, consisting primarily of cash of $629 million and insurance and reinsurance balances receivable of $124 million. We assumed liabilities with a fair value of $863 million, consisting primarily of unpaid losses and loss expenses of $417 million and unearned premiums of $428 million. This acquisition generated $196 million of goodwill, attributable to expected growth and profitability, all of which is expected to be deductible for income tax purposes, and other intangible assets of $278 million, primarily related to renewal rights, based on Chubb’s purchase price allocation. During the third quarter of 2015, we recorded an adjustment to the valuation of our other intangible assets. The acquisition expanded our position in the high net worth personal lines insurers in the U.S. The Fireman’s Fund business was

11

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

integrated into our existing high net worth personal lines business, offering a broad range of coverage including homeowners, automobile, umbrella and excess liability, collectibles, and yachts. Goodwill and other intangible assets arising from this acquisition are included in our North America Personal P&C Insurance segment.

The consolidated financial statements include results of acquired businesses from the acquisition dates.

3. Investments

a) Fixed maturities

September 30, 2016	Amortized Cost		Gross Unrealized Appreciation		Gross Unrealized Depreciation			Fair Value		OTTI Recognized in AOCI
(in millions of U.S. dollars)
Available for sale
U.S. Treasury and agency	$	2,626	$	84	$	(2	)	$	2,708	$	—
Foreign	21,499		1,057		(48		)	22,508		(9		)
Corporate securities	22,860		977		(64		)	23,773		(9		)
Mortgage-backed securities	13,083		383		(5		)	13,461		(1		)
States, municipalities, and political subdivisions	18,562		357		(11		)	18,908		—
	$	78,630	$	2,858	$	(130	)	$	81,358	$	(19	)
Held to maturity
U.S. Treasury and agency	$	709	$	26	$	—		$	735	$	—
Foreign	694		45		—			739		—
Corporate securities	2,852		131		(2		)	2,981		—
Mortgage-backed securities	1,507		72		—			1,579		—
States, municipalities, and political subdivisions	5,165		167		—			5,332		—
	$	10,927	$	441	$	(2	)	$	11,366	$	—

December 31, 2015	Amortized Cost		Gross Unrealized Appreciation		Gross Unrealized Depreciation			Fair Value		OTTI Recognized in AOCI
(in millions of U.S. dollars)
Available for sale
U.S. Treasury and agency	$	2,481	$	52	$	(5	)	$	2,528	$	—
Foreign	13,190		468		(213		)	13,445		(13		)
Corporate securities	15,028		355		(454		)	14,929		(28		)
Mortgage-backed securities	9,827		183		(52		)	9,958		(1		)
States, municipalities, and political subdivisions	2,623		110		(6		)	2,727		—
	$	43,149	$	1,168	$	(730	)	$	43,587	$	(42	)
Held to maturity
U.S. Treasury and agency	$	733	$	13	$	(1	)	$	745	$	—
Foreign	763		30		(8		)	785		—
Corporate securities	3,054		57		(55		)	3,056		—
Mortgage-backed securities	1,707		38		(2		)	1,743		—
States, municipalities, and political subdivisions	2,173		52		(2		)	2,223		—
	$	8,430	$	190	$	(68	)	$	8,552	$	—

As discussed in Note 3c), if a credit loss is incurred on an impaired fixed maturity, an OTTI is considered to have occurred and the portion of the impairment not related to credit losses (non-credit OTTI) is recognized in OCI. Included in the “OTTI Recognized in AOCI” columns above are the cumulative amounts of non-credit OTTI recognized in OCI adjusted for subsequent

12

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

sales, maturities, and redemptions. OTTI recognized in AOCI does not include the impact of subsequent changes in fair value of the related securities. In periods subsequent to a recognition of OTTI in OCI, changes in the fair value of the related fixed maturities are reflected in Unrealized appreciation (depreciation) in the Consolidated statement of shareholders’ equity. For the three and nine months endedSeptember 30, 2016, $13 million and $57 million, respectively, of net unrealized appreciation related to such securities is included in OCI. For the three and nine months endedSeptember 30, 2015, $4 million and nil, respectively, of net unrealized depreciation related to such securities is included in OCI. At September 30, 2016, AOCI included cumulative net unrealized appreciation of $7 million related to securities remaining in the investment portfolio for which a non-credit OTTI was recognized. At December 31, 2015, AOCI included cumulative net unrealized depreciation of $35 million related to securities remaining in the investment portfolio for which a non-credit OTTI was recognized.

Mortgage-backed securities (MBS) issued by U.S. government agencies are combined with all other to be announced mortgage derivatives held (refer to Note 8 c) (iv)) and are included in the category, “Mortgage-backed securities”. Approximately 81 percent of the total mortgage-backed securities at both September 30, 2016 and December 31, 2015 are represented by investments in U.S. government agency bonds. The remainder of the mortgage exposure consists of collateralized mortgage obligations and non-government mortgage-backed securities, the majority of which provide a planned structure for principal and interest payments and carry a rating of AAA by the major credit rating agencies.

The following table presents fixed maturities by contractual maturity:

			September 30				December 31
			2016				2015
(in millions of U.S. dollars)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Available for sale
Due in 1 year or less	$	3,402	$	3,413	$	1,856	$	1,865
Due after 1 year through 5 years	25,152		25,865		14,936		15,104
Due after 5 years through 10 years	26,702		27,645		12,258		12,173
Due after 10 years	10,291		10,974		4,272		4,487
	65,547		67,897		33,322		33,629
Mortgage-backed securities	13,083		13,461		9,827		9,958
	$	78,630	$	81,358	$	43,149	$	43,587
Held to maturity
Due in 1 year or less	$	458	$	462	$	492	$	495
Due after 1 year through 5 years	2,716		2,807		2,443		2,517
Due after 5 years through 10 years	2,815		2,919		2,292		2,313
Due after 10 years	3,431		3,599		1,496		1,484
	9,420		9,787		6,723		6,809
Mortgage-backed securities	1,507		1,579		1,707		1,743
	$	10,927	$	11,366	$	8,430	$	8,552

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) Equity securities

	September 30			December 31
(in millions of U.S. dollars)	2016			2015
Cost	$	695		$	441
Gross unrealized appreciation	122			74
Gross unrealized depreciation	(14		)	(18		)
Fair value	$	803		$	497

13

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

c) Net realized gains (losses)

In accordance with guidance related to the recognition and presentation of OTTI, when an impairment related to a fixed maturity has occurred, OTTI is required to be recorded in Net income if management has the intent to sell the security or it is more likely than not that we will be required to sell the security before the recovery of its amortized cost. Further, in cases where we do not intend to sell the security and it is more likely than not that we will not be required to sell the security, Chubb must evaluate the security to determine the portion of the impairment, if any, related to credit losses. If a credit loss is incurred, an OTTI is considered to have occurred and any portion of the OTTI related to credit losses must be reflected in Net income while the portion of OTTI related to all other factors is recognized in OCI. For fixed maturities held to maturity, OTTI recognized in OCI is accreted from AOCI to the amortized cost of the fixed maturity prospectively over the remaining term of the securities.

Each quarter, securities in an unrealized loss position (impaired securities), including fixed maturities, securities lending collateral, equity securities, and other investments, are reviewed to identify impaired securities to be specifically evaluated for a potential OTTI.

For all non-fixed maturities, OTTI is evaluated based on the following:

• the amount of time a security has been in a loss position and the magnitude of the loss position;

• the period in which cost is expected to be recovered, if at all, based on various criteria including economic conditions and other issuer-specific developments; and

• Our ability and intent to hold the security to the expected recovery period.

As a general rule, we also consider that equity securities in an unrealized loss position for twelve consecutive months are other than temporarily impaired. For mutual funds included in equity securities in our consolidated balance sheet, we employ analysis similar to fixed maturities, when applicable.

We review each fixed maturity in an unrealized loss position to assess whether the security is a candidate for credit loss. Specifically, we consider credit rating, market price, and issuer-specific financial information, among other factors, to assess the likelihood of collection of all principal and interest as contractually due. Securities for which we determine that credit loss is likely are subjected to further analysis to estimate the credit loss recognized in Net income, if any. In general, credit loss recognized in Net income equals the difference between the security’s amortized cost and the net present value of its projected future cash flows discounted at the effective interest rate implicit in the debt security. All significant assumptions used in determining credit losses are subject to change as market conditions evolve.

Projected cash flows for corporate securities (principally senior unsecured bonds) are driven primarily by assumptions regarding probability of default and also the timing and amount of recoveries associated with defaults. Chubb developed projected cash flows for corporate securities using market observable data, issuer-specific information, and credit ratings. We use historical default data by Moody’s Investors Service (Moody’s) rating category to calculate a 1-in-100 year probability of default, which results in a default assumption in excess of the historical mean default rate. Consistent with management's approach, Chubb assumed a 32 percent recovery rate (the par value of a defaulted security that will be recovered) across all rating categories rather than using Moody's historical mean recovery rate of 42 percent. We believe that use of a default assumption in excess of the historical mean is conservative in light of current market conditions.

For the three and nine months endedSeptember 30, 2016, credit losses recognized in Net income for corporate securities were $4 million and $28 million, respectively. For the three and nine months endedSeptember 30, 2015, credit losses recognized in Net income for corporate securities were $14 million and $23 million, respectively.

For mortgage-backed securities, credit impairment is assessed using a cash flow model that estimates the cash flows on the underlying mortgages, using the security-specific collateral and transaction structure. The model estimates cash flows from the underlying mortgage loans and distributes those cash flows to various tranches of securities, considering the transaction structure and any subordination and credit enhancements that exist in that structure. The cash flow model incorporates actual cash flows on the mortgage-backed securities through the current period and then projects the remaining cash flows using a number of assumptions, including default rates, prepayment rates, and loss severity rates (the par value of a defaulted security that will not be recovered) on foreclosed properties.

14

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

For both the three and nine months ended September 30, 2016, there were $1 million in credit losses recognized in Net income for mortgage-backed securities. For the three and nine months ended September 30, 2015, there were no credit losses recognized in Net income for mortgage-backed securities.

The following table presents the Net realized gains (losses) and the losses included in Net realized gains (losses) and OCI as a result of conditions which caused us to conclude the decline in fair value of certain investments was “other-than-temporary”:

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Fixed maturities:
OTTI on fixed maturities, gross	$	(7	)	$	(31	)	$	(85	)	$	(57	)
OTTI on fixed maturities recognized in OCI (pre-tax)	—			5			8			11
OTTI on fixed maturities, net	(7		)	(26		)	(77		)	(46		)
Gross realized gains excluding OTTI	47			19			149			91
Gross realized losses excluding OTTI	(13		)	(44		)	(228		)	(95		)
Total fixed maturities	27			(51		)	(156		)	(50		)
Equity securities:
OTTI on equity securities	(1		)	(3		)	(7		)	(4		)
Gross realized gains excluding OTTI	19			10			63			43
Gross realized losses excluding OTTI	(12		)	(5		)	(17		)	(7		)
Total equity securities	6			2			39			32
OTTI on other investments	(4		)	(1		)	(7		)	(1		)
Foreign exchange gains (losses)	29			(2		)	46			(73		)
Investment and embedded derivative instruments	1			(22		)	(85		)	6
Fair value adjustments on insurance derivative	89			(396		)	(270		)	(337		)
S&P put options and futures	(45		)	83			(88		)	69
Other derivative instruments	3			(9		)	1			(10		)
Other	(6		)	(1		)	10			4
Net realized gains (losses)	$	100		$	(397	)	$	(510	)	$	(360	)

The following table presents a roll-forward of pre-tax credit losses related to fixed maturities for which a portion of OTTI was recognized in OCI:

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Balance of credit losses related to securities still held – beginning of period	$	51		$	23		$	53		$	28
Additions where no OTTI was previously recorded	4			8			16			15
Additions where an OTTI was previously recorded	1			6			13			8
Reductions for securities sold during the period	(11		)	(5		)	(37		)	(19		)
Balance of credit losses related to securities still held – end of period	$	45		$	32		$	45		$	32

15

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

d) Gross unrealized loss

At September 30, 2016, there were 3,376 fixed maturities out of a total of 31,902 fixed maturities in an unrealized loss position. The largest single unrealized loss in the fixed maturities was $2 million. There were 73 equity securities out of a total of 326 equity securities in an unrealized loss position. The largest single unrealized loss in the equity securities was $3 million. Fixed maturities in an unrealized loss position at September 30, 2016, comprised both investment grade and below investment grade securities for which fair value declined primarily due to widening credit spreads since the date of purchase.

The following tables present, for all securities in an unrealized loss position (including securities on loan), the aggregate fair value and gross unrealized loss by length of time the security has continuously been in an unrealized loss position:

	0 – 12 Months					Over 12 Months					Total
September 30, 2016	Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury and agency	$	436	$	(2	)	$	—	$	—		$	436	$	(2	)
Foreign	1,899		(20		)	409		(28		)	2,308		(48		)
Corporate securities	1,559		(21		)	750		(45		)	2,309		(66		)
Mortgage-backed securities	1,039		(3		)	292		(2		)	1,331		(5		)
States, municipalities, and political subdivisions	2,807		(10		)	50		(1		)	2,857		(11		)
Total fixed maturities	7,740		(56		)	1,501		(76		)	9,241		(132		)
Equity securities	133		(14		)	—		—			133		(14		)
Other investments	233		(27		)	—		—			233		(27		)
Total	$	8,106	$	(97	)	$	1,501	$	(76	)	$	9,607	$	(173	)

	0 – 12 Months					Over 12 Months					Total
December 31, 2015	Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury and agency	$	996	$	(5	)	$	153	$	(1	)	$	1,149	$	(6	)
Foreign	3,953		(148		)	436		(73		)	4,389		(221		)
Corporate securities	7,518		(371		)	738		(138		)	8,256		(509		)
Mortgage-backed securities	3,399		(42		)	516		(12		)	3,915		(54		)
States, municipalities, and political subdivisions	556		(6		)	42		(2		)	598		(8		)
Total fixed maturities	16,422		(572		)	1,885		(226		)	18,307		(798		)
Equity securities	131		(18		)	—		—			131		(18		)
Other investments	210		(11		)	—		—			210		(11		)
Total	$	16,763	$	(601	)	$	1,885	$	(226	)	$	18,648	$	(827	)

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 also 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 also have investments in segregated portfolios primarily to provide collateral or guarantees for LOC and derivative transactions. Included in restricted assets at September 30, 2016 and December 31, 2015, are investments, primarily fixed maturities, totaling $19.4 billion and $16.9 billion, respectively, and cash of $162 million and $110 million, respectively.

16

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

The following table presents the components of restricted assets:

	September 30		December 31
(in millions of U.S. dollars)	2016		2015
Trust funds	$	13,093	$	11,862
Deposits with non-U.S. regulatory authorities	2,338		2,075
Deposits with U.S. regulatory authorities	2,232		1,242
Assets pledged under repurchase agreements	1,464		1,459
Other pledged assets	433		392
	$	19,560	$	17,030

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. Accordingly, transfers between levels within the valuation hierarchy occur when there are significant changes to the inputs, such as increases or decreases in market activity, changes to the availability of current prices, changes to the transparency to underlying inputs, and whether there are significant variances in quoted prices. Transfers in and/or out of any level are assumed to occur at the end of the period.

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, 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

17

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

more subjective when markets are less liquid due to the lack of market based inputs (i.e., stale pricing), which 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 net asset values or equivalent (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 are classified within the valuation hierarchy on the same basis as other equity securities and fixed maturities. Other investments for which pricing is unobservable are classified within Level 3.

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 are based on market valuations and are 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 generally maintain positions in other derivative instruments including exchange-traded equity futures contracts and option contracts designed to limit exposure to a severe equity market decline, which would cause an increase in expected claims and, therefore, an increase in reserves for our guaranteed minimum death benefits (GMDB) and guaranteed living benefits (GLB) reinsurance business. Our position in exchange-traded equity futures contracts is classified within Level 1. At September 30, 2016, we held no positions in option contracts on equity market indices. 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

18

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

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) and guaranteed minimum accumulation benefits (GMAB) associated with variable annuity contracts. GLB’s are recorded in Accounts payable, accrued expenses, and other liabilities and Future policy benefits 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.

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.

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 in line with data received from other ceding companies adjusted, as appropriate, with industry estimates. 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. Because of the significant use of unobservable inputs including policyholder behavior, GLB reinsurance is classified within Level 3. For the three and nine months endedSeptember 30, 2016 and 2015, no material technical 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 2015 Form 10-K.

19

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

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

September 30, 2016	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury and agency	$	2,155	$	553	$	—	$	2,708
Foreign	—		22,405		103		22,508
Corporate securities	—		23,167		606		23,773
Mortgage-backed securities	—		13,415		46		13,461
States, municipalities, and political subdivisions	—		18,908		—		18,908
	2,155		78,448		755		81,358
Equity securities	766		—		37		803
Short-term investments	2,127		1,359		62		3,548
Other investments (1)	404		250		223		877
Securities lending collateral	—		1,140		—		1,140
Investment derivative instruments	20		—		—		20
Other derivative instruments	14		—		—		14
Separate account assets	1,743		97		—		1,840
Total assets measured at fair value (1)	$	7,229	$	81,294	$	1,077	$	89,600
Liabilities:
Investment derivative instruments	$	34	$	—	$	—	$	34
Other derivative instruments	—		—		8		8
GLB (2)	—		—		883		883
Total liabilities measured at fair value	$	34	$	—	$	891	$	925

⁽¹⁾  Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $3,498 million and other investments of $25 million at September 30, 2016 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. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

20

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

December 31, 2015	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury and agency	$	1,712	$	816	$	—	$	2,528
Foreign	—		13,388		57		13,445
Corporate securities	—		14,755		174		14,929
Mortgage-backed securities	—		9,905		53		9,958
States, municipalities, and political subdivisions	—		2,727		—		2,727
	1,712		41,591		284		43,587
Equity securities	481		—		16		497
Short-term investments	7,171		3,275		—		10,446
Other investments (1)	347		230		212		789
Securities lending collateral	—		1,046		—		1,046
Investment derivative instruments	12		—		—		12
Separate account assets	1,464		88		—		1,552
Total assets measured at fair value (1)	$	11,187	$	46,230	$	512	$	57,929
Liabilities:
Investment derivative instruments	$	13	$	—	$	—	$	13
Other derivative instruments	4		—		6		10
GLB (2)	—		—		609		609
Total liabilities measured at fair value	$	17	$	—	$	615	$	632

⁽¹⁾  Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $2,477 million and other investments of $25 million at December 31, 2015 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. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

There were no transfers between Level 1 and Level 2 for the three and nine months endedSeptember 30, 2016 and 2015.

Fair value of alternative investments

Alternative investments include investment funds, limited partnerships, and partially-owned investment companies measured at fair value using NAV as a practical expedient.

21

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

The following table presents, by investment category, the expected liquidation period, fair value, and maximum future funding commitments of alternative investments:

				September 30				December 31
	Expected Liquidation Period of Underlying Assets			2016				2015
(in millions of U.S. dollars)		Fair Value		Maximum Future Funding Commitments		Fair Value		Maximum Future Funding Commitments
Financial	5 to 9 Years	$	549	$	188	$	300	$	105
Real Assets	3 to 7 Years	520		274		474		140
Distressed	5 to 9 Years	463		196		261		218
Private Credit	3 to 7 Years	241		294		265		209
Traditional	3 to 9 Years	1,458		999		895		152
Vintage	1 to 2 Years	23		14		13		—
Investment funds	Not Applicable	244		—		269		—
		$	3,498	$	1,965	$	2,477	$	824

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	made before 2002 and where the funds’ commitment periods had already expired

Investment funds

Chubb’s 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 range between 5 and 120 days. Chubb can redeem its investment funds without consent from the investment fund managers.

Level 3 financial instruments

The fair values of assets and liabilities measured at fair value using significant unobservable inputs (Level 3) consist of various inputs and assumptions that management makes when determining fair value. Management analyzes changes in fair value measurements classified within Level 3 by comparing pricing and returns of our investments to benchmarks, including month-over-month movements, investment credit spreads, interest rate movements, and credit quality of securities.

22

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

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.

(in millions of U.S. dollars, except for percentages)	Fair Value				Valuation Technique	Significant Unobservable Inputs	Ranges
	September 30, 2016		December 31, 2015
GLB(1)	$	883	$	609	Actuarial model	Lapse rate	1% – 30%
						Annuitization rate	0% – 55%

⁽¹⁾  Discussion of the most significant inputs used in the fair value measurement of GLB and the sensitivity of those assumptions is included within Note 4 a) Guaranteed living benefits.

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	Available-for-Sale Debt Securities									Equity securities			Short-term investments		Other investments			Other derivative instruments			GLB(1)
September 30, 2016	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	87		$	281		$	49		$	37		$	50	$	216		$	10		$	971
Transfers into Level 3	—			—			—			—			—		—			—			—
Change in Net Unrealized Gains (Losses) included in OCI	(1		)	6			—			3			—		4			—			—
Net Realized Gains/Losses	—			(4		)	—			—			—		—			—			(88		)
Purchases	20			348			—			—			12		8			—			—
Sales	(2		)	(18		)	(3		)	(3		)	—		—			—			—
Settlements	(1		)	(7		)	—			—			—		(5		)	(2		)	—
Balance–End of Period	$	103		$	606		$	46		$	37		$	62	$	223		$	8		$	883
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	—		$	(4	)	$	—		$	—		$	—	$	—		$	—		$	(88	)

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

23

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

	Assets																	Liabilities
Three Months Ended	Available-for-Sale Debt Securities									Equity securities			Other investments			Other derivative instruments		GLB(1)
September 30, 2015	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	56		$	167		$	55		$	2		$	214		$	3	$	347
Transfers into Level 3	1			2			—			—			—			—		—
Change in Net Unrealized Gains (Losses) included in OCI	1			1			—			2			(7		)	—		—
Net Realized Gains/Losses	(1		)	(1		)	—			(1		)	—			4		397
Purchases	—			22			—			1			5			—		—
Sales	—			(5		)	(1		)	—			—			—		—
Settlements	(4		)	(3		)	—			—			(3		)	—		—
Balance–End of Period	$	53		$	183		$	54		$	4		$	209		$	7	$	744
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(1	)	$	—		$	—		$	(1	)	$	—		$	4	$	397

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $615 million at June 30, 2015, which includes a fair value derivative adjustment of $744 million and $347 million, respectively.

															Assets			Liabilities
Nine Months Ended	Available-for-Sale Debt Securities									Equity securities			Short-term investments		Other investments			Other derivative instruments			GLB(1)
September 30, 2016	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	57		$	174		$	53		$	16		$	—	$	212		$	6		$	609
Transfers into Level 3	9			18			—			—			—		—			—			—
Transfers out of Level 3	(2		)	—			—			—			—		—			—			—
Change in Net Unrealized Gains (Losses) included in OCI	8			17			—			2			—		4			—			—
Net Realized Gains/Losses	(6		)	(12		)	—			1			—		—			2			274
Purchases (2)	52			472			1			23			62		22			2			—
Sales	(10		)	(48		)	(8		)	(5		)	—		—			—			—
Settlements	(5		)	(15		)	—			—			—		(15		)	(2		)	—
Balance–End of Period	$	103		$	606		$	46		$	37		$	62	$	223		$	8		$	883
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(5	)	$	(11	)	$	—		$	—		$	—	$	—		$	2		$	274

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

⁽²⁾  Includes acquired invested assets as a result of the Chubb Corp acquisition.

24

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

	Assets																	Liabilities
Nine Months Ended	Available-for-Sale Debt Securities												Other investments			Other derivative instruments		GLB(1)
September 30, 2015	Foreign			Corporate securities			MBS			Equity securities
(in millions of U.S. dollars)
Balance–Beginning of Period	$	22		$	187		$	15		$	2		$	204		$	4	$	406
Transfers into Level 3	29			15			—			—			—			—		—
Change in Net Unrealized Gains (Losses) included in OCI	(1		)	1			—			2			(7		)	—		—
Net Realized Gains/Losses	(1		)	(4		)	—			(2		)	—			3		338
Purchases	9			38			41			2			21			—		—
Sales	(1		)	(10		)	(1		)	—			—			—		—
Settlements	(4		)	(44		)	(1		)	—			(9		)	—		—
Balance–End of Period	$	53		$	183		$	54		$	4		$	209		$	7	$	744
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(1	)	$	(2	)	$	—		$	(2	)	$	—		$	3	$	338

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $663 million at December 31, 2014, which includes a fair value derivative adjustment of $744 million and $406 million, respectively.

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.

Investments in partially-owned insurance companies

Fair values for investments in partially-owned insurance companies are based on Chubb’s share of the net assets based on the financial statements provided by those companies and are excluded from the valuation hierarchy tables below.

Short- and long-term debt, repurchase agreements, and trust preferred securities

Where practical, fair values for short-term debt, long-term debt, repurchase agreements, and trust preferred securities are estimated using discounted cash flow calculations based principally on observable inputs including incremental borrowing rates, which reflect Chubb’s credit rating, for similar types of borrowings with maturities consistent with those remaining for the debt being valued.

25

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:

September 30, 2016	Fair Value								Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury and agency	$	628	$	107	$	—	$	735	$	709
Foreign	—		739		—		739		694
Corporate securities	—		2,968		13		2,981		2,852
Mortgage-backed securities	—		1,579		—		1,579		1,507
States, municipalities, and political subdivisions	—		5,332		—		5,332		5,165
Total assets	$	628	$	10,725	$	13	$	11,366	$	10,927
Liabilities:
Repurchase agreements	$	—	$	1,406	$	—	$	1,406	$	1,406
Short-term debt	—		508		—		508		500
Long-term debt	—		13,762		—		13,762		12,621
Trust preferred securities	—		463		—		463		308
Total liabilities	$	—	$	16,139	$	—	$	16,139	$	14,835

December 31, 2015	Fair Value								Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury and agency	$	583	$	162	$	—	$	745	$	733
Foreign	—		785		—		785		763
Corporate securities	—		3,042		14		3,056		3,054
Mortgage-backed securities	—		1,743		—		1,743		1,707
States, municipalities, and political subdivisions	—		2,223		—		2,223		2,173
Total assets	$	583	$	7,955	$	14	$	8,552	$	8,430
Liabilities:
Repurchase agreements	$	—	$	1,404	$	—	$	1,404	$	1,404
Long-term debt	—		9,678		—		9,678		9,389
Trust preferred securities	—		446		—		446		307
Total liabilities	$	—	$	11,528	$	—	$	11,528	$	11,100

26

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

5. Assumed life reinsurance programs involving minimum benefit guarantees under variable annuity contracts

The following table presents income and expenses relating to GMDB and GLB reinsurance. GLBs include GMIBs as well as some GMABs originating in Japan.

	Three Months Ended					Nine Months Ended
	September 30					September 30
(in millions of U.S. dollars)	2016		2015			2016			2015
GMDB
Net premiums earned	$	15	$	15		$	42		$	47
Policy benefits and other reserve adjustments	$	11	$	5		$	34		$	25
GLB
Net premiums earned	$	28	$	30		$	88		$	92
Policy benefits and other reserve adjustments	9		15			24			34
Net realized gains (losses)	86		(397		)	(285		)	(338		)
Loss recognized in Net income	$	105	$	(382	)	$	(221	)	$	(280	)
Less: Net cash received	15		20			57			74
Net (increase) decrease in liability	$	90	$	(402	)	$	(278	)	$	(354	)

Net realized gains (losses) in the table above include gains (losses) related to foreign exchange and fair value adjustments on insurance derivatives and exclude gains (losses) on S&P put options and futures used to partially offset the risk in the GLB reinsurance portfolio. Refer to Note 8 for additional information.

The reported liability for GMDB reinsurance was $119 million and $117 million at September 30, 2016 and December 31, 2015, respectively. At September 30, 2016 and December 31, 2015, the reported liability for GLB reinsurance was $1.2 billion and $888 million, respectively, which includes a fair value derivative adjustment of $883 million and $609 million, respectively. Reported liabilities for both GMDB and GLB reinsurance are determined using internal valuation models. Such valuations require considerable judgment and are subject to significant uncertainty. The valuation of these products is subject to fluctuations arising from, among other factors, changes in interest rates, changes in equity markets, changes in credit markets, changes in the allocation of the investments underlying annuitants’ account values, and assumptions regarding future policyholder behavior. These models and the related assumptions are regularly reviewed by management and enhanced, as appropriate, based upon improvements in modeling assumptions and availability of updated information, such as market conditions and demographics of in-force annuities.

6. Goodwill and Other intangible assets

At September 30, 2016 and December 31, 2015, Goodwill was $15.5 billion and $4.8 billion, respectively, and Other intangible assets were $7.0 billion and $887 million, respectively. The increases in Goodwill and Other intangible assets reflect the goodwill and intangible assets recorded in connection with the Chubb Corp acquisition.

The following table presents a roll-forward of Goodwill by segment for the nine months endedSeptember 30, 2016:

(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		Chubb Consolidated
Balance at December 31, 2015	$	1,203	$	196	$	134	$	2,078	$	365	$	820	$	4,796
Acquisition of Chubb Corp	5,711		2,025		—		2,794		—		—		10,530
Foreign exchange revaluation	43		13		—		98		—		1		155
Balance at September 30, 2016	$	6,957	$	2,234	$	134	$	4,970	$	365	$	821	$	15,481

27

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

The preliminary purchase price allocation to intangible assets recorded in connection with the Chubb Corp acquisition and their related useful lives are as follows:

(in millions of U.S. dollars)	Preliminary purchase price allocation		Estimated useful life
Definite life
Unearned premium reserves (UPR) intangible asset	$	1,550	1 year
Agency distribution relationships and renewal rights	3,150		24 years
Internally developed technology	95		3 years
Indefinite life
Trademarks	2,800		Indefinite
Licenses	50		Indefinite
Syndicate capacity	10		Indefinite
Total identified intangible assets	$	7,655

Additionally, in connection with the Chubb Corp acquisition, we recorded an increase to Unpaid losses and loss expenses acquired as part of Chubb Corp of $715 million to adjust the carrying value of Chubb Corp's historical unpaid losses and loss expenses to fair value as of the acquisition date. The estimated fair value consists of the present value of the expected net unpaid loss and loss adjustment expenses payments adjusted for an estimated risk margin. The expected cash flows are discounted at a risk free rate. The estimated risk margin varies based on the inherent risks associated with each type of reserve. This fair value adjustment was recorded within Unpaid losses and loss expenses on the Consolidated balance sheets and will amortize through Amortization of purchased intangibles on the Consolidated statements of operations over a range of 5 to 17 years, based on the estimated payout patterns of unpaid loss and loss expenses as of the acquisition date.

The following table presents, as of September 30, 2016, the expected estimated pre-tax amortization expense (benefit), at current foreign currency exchange rates, for the fourth quarter of 2016 and the next five years, related to purchased intangibles as well as the fair value adjustment to Unpaid losses and loss expenses described above:

	Associated with the Chubb Corp Acquisition
For the Year Ending December 31 (in millions of U.S. dollars)	Agency distribution relationships and renewal rights		Internally developed technology		Fair value adjustment to Unpaid losses and loss expenses			Total			Other intangible assets		Total Amortization of purchased intangibles
Fourth quarter of 2016	$	33	$	8	$	(61	)	$	(20	)	$	23	$	3
2017	296		32		(161		)	167			85		252
2018	324		32		(102		)	254			73		327
2019	281		—		(62		)	219			66		285
2020	240		—		(36		)	204			59		263
2021	217		—		(20		)	197			53		250
Total	$	1,391	$	72	$	(442	)	$	1,021		$	359	$	1,380

The expected amortization, at current foreign currency exchange rates, for the remainder of the UPR intangible asset which amortizes through Policy acquisition costs on the Consolidated statements of operations is $144 million for the fourth quarter of 2016.

7. Debt

In connection with the Chubb Corp acquisition, Chubb INA Holdings Inc. (formerly ACE INA Holdings Inc.) assumed $3.3 billion par value outstanding debt of Chubb Corp, fair valued at $3.8 billion at the acquisition date. Chubb INA Holdings Inc. (Chubb INA) assumed Chubb Corp's rights, duties and obligations and Chubb Limited fully and unconditionally guarantees Chubb INA's payment obligations under these debts. Additionally, during the first quarter of 2016 we adopted new guidance that required debt issuance costs be recorded as a reduction of the carrying amount of the related debt liability (these costs

28

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

were previously included in Other assets on the Consolidated balance sheets). The debt balances at December 31, 2015 have been updated to reflect the adoption of this guidance.

	September 30		December 31
(in millions of U.S. dollars)	2016		2015		Early Redemption Option
Repurchase agreements (weighted average interest rate of 0.8% in 2016 and 0.6% in 2015)	$	1,406	$	1,404	None
Short-term debt
Chubb INA senior notes:
$500 million 5.7% due February 2017	$	500	$	—	Make-whole premium plus 0.20%
Long-term debt
Chubb INA senior notes:
$500 million 5.7% due February 2017	$	—	$	500	Make-whole premium plus 0.20%
$300 million 5.8% due March 2018	300		299		Make-whole premium plus 0.35%
$600 million 5.75% due May 2018	641		—		Make-whole premium plus 0.30%
$100 million 6.6% due August 2018	109		—		None
$500 million 5.9% due June 2019	498		497		Make-whole premium plus 0.40%
$1,300 million 2.3% due November 2020	1,294		1,294		Make-whole premium plus 0.15%
$1,000 million 2.875% due November 2022	994		994		Make-whole premium plus 0.20%
$475 million 2.7% due March 2023	471		471		Make-whole premium plus 0.10%
$700 million 3.35% due May 2024	694		694		Make-whole premium plus 0.15%
$800 million 3.15% due March 2025	794		794		Make-whole premium plus 0.15%
$1,500 million 3.35% due May 2026	1,488		1,487		Make-whole premium plus 0.20%
$100 million 8.875% due August 2029	100		100		None
$200 million 6.8% due November 2031	258		—		Make-whole premium plus 0.25%
$300 million 6.7% due May 2036	297		297		Make-whole premium plus 0.20%
$800 million 6.0% due May 2037	982		—		Make-whole premium plus 0.20%
$600 million 6.5% due May 2038	778		—		Make-whole premium plus 0.30%
$475 million 4.15% due March 2043	469		469		Make-whole premium plus 0.15%
$1,500 million 4.35% due November 2045	1,482		1,482		Make-whole premium plus 0.25%
Chubb INA $1,000 million 6.375% capital securities due March 2067(1)	961		—		Make-whole premium plus 0.25%-0.50%
Other long-term debt (2.75% to 7.1% due December 2019 to September 2020)	11		11		None
Total long-term debt	$	12,621	$	9,389
Trust preferred securities
Chubb INA capital securities due April 2030	$	308	$	307	Redemption prices(2)

⁽¹⁾  6.375% interest rate through April 14, 2017; interest rate equal to three month LIBOR rate plus 2.25% thereafter.

⁽²⁾  Redemption price is equal to accrued and unpaid interest to the redemption date plus the greater of (i) 100 percent of the principal amount thereof, or (ii) sum of present value of scheduled payments of principal and interest on the debentures from the redemption date to April 1, 2030.

Certain of Chubb INA's senior notes and capital securities are redeemable at any time at Chubb INA's option subject to the provisions described in the table above. A "make-whole" premium is the present value of the remaining principal and interest

29

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

discounted at the applicable U.S. Treasury rate. The senior notes and capital securities are also redeemable at par plus accrued and unpaid interest in the event of certain changes in tax law.

We have outstanding $1.0 billion of unsecured junior subordinated capital securities at September 30, 2016, which were assumed by Chubb INA in connection with the Chubb Corp acquisition. The capital securities will become due on April 15, 2037, the scheduled maturity date, but only to the extent that we have received sufficient net proceeds from the sale of certain qualifying capital securities. We must use commercially reasonable efforts, subject to certain market disruption events, to sell enough qualifying capital securities to permit repayment of the capital securities on the scheduled maturity date or as soon thereafter as possible. Any remaining outstanding principal amount will be due on March 29, 2067, the final maturity date. The capital securities bear interest at a rate of 6.375 percent through April 14, 2017. Thereafter, the capital securities will bear interest at a rate equal to the three-month LIBOR rate plus 2.25 percent. Subject to certain conditions, we have the right to defer the payment of interest on the capital securities for a period not exceeding ten consecutive years. During any such period, interest will continue to accrue and we generally may not declare or pay any dividends on or purchase any shares of our capital stock.

In connection with the issuance of capital securities, a replacement capital covenant was entered into in which we agreed that we will not repay, redeem, or purchase capital securities before March 29, 2047, unless, subject to certain limitations, we have received proceeds from the sale of specified replacement capital securities. The replacement capital covenant is not intended for the benefit of holders of the capital securities and may not be enforced by them. The replacement capital covenant is for the benefit of holders of one or more designated series of Chubb's indebtedness, which initially was and continues to be its 6.8 percent debentures due November 2031.

Subject to the replacement capital covenant, the $1.0 billion capital securities may be redeemed, in whole or in part, at any time (i) on or after April 15, 2017 at a redemption price equal to the principal amount plus any accrued interest or (ii) prior to April 15, 2017 at a redemption price equal to the greater of (1) the principal amount or (2) a make-whole premium, in each case plus any accrued interest.

8. 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 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, including GMIB and GMAB, 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 GMAB risk is triggered if, at contract maturity, the contract holder’s account value is less than a guaranteed minimum value. The GLB reinsurance product meets the definition of a derivative instrument. Benefit reserves in respect of GLBs are classified as Future policy benefits (FPB) while the fair value derivative adjustment is classified within AP. Chubb also generally maintains positions in exchange-traded equity futures contracts and options on equity market indices to limit equity exposure in the GMDB and GLB blocks of business. At September 30, 2016, we held no positions in option contracts on equity market indices.

30

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

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:

				September 30, 2016							December 31, 2015
	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)	$	10	$	(32	)	$	2,025	$	7	$	(11	)	$	1,029
Cross-currency swaps	OA / (AP)	—		—			95		—		—			95
Options/Futures contracts on bonds and equities	OA / (AP)	10		(2		)	1,353		5		(2		)	751
Convertible securities (1)	FM AFS / ES	5		—			8		31		—			40
		$	25	$	(34	)	$	3,481	$	43	$	(13	)	$	1,915
Other derivative instruments
Futures contracts on equities(2)	OA / (AP)	$	4	$	—		$	1,275	$	—	$	(4	)	$	1,197
Other	OA / (AP)	10		(8		)	243		—		(6		)	15
		$	14	$	(8	)	$	1,518	$	—	$	(10	)	$	1,212
GLB(3)	(AP) / (FPB)	$	—	$	(1,166	)	$	1,436	$	—	$	(888	)	$	1,155

⁽¹⁾  Includes fair value of embedded derivatives.

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

⁽³⁾  Includes both future policy benefits reserves and fair value derivative adjustment. Refer to Note 5 for additional information. 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 September 30, 2016 and December 31, 2015, derivative assets of $9 million and $1 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. 

b) 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. AtSeptember 30, 2016and December 31, 2015, our securities lending collateral was$1,140million and$1,046million, respectively, and our securities lending payable,reflecting our obligation to return the collateral plus interest, was$1,141million and$1,047million, respectively. 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.

31

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

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
September 30, 2016	Overnight and Continuous
(in millions of U.S. dollars)
Collateral held under securities lending agreements:
Cash	$	449
U.S. Treasury and agency	53
Foreign	324
Corporate securities	4
Mortgage-backed securities	38
Equity securities	272
	$	1,140
Gross amount of recognized liability for securities lending payable	$	1,141
Difference (1)	$	(1	)

⁽¹⁾  The carrying value of the securities lending collateral held is $1 million lower than the securities lending payable due to accrued interest recorded in the securities lending payable.

AtSeptember 30, 2016and December 31, 2015, our repurchase agreement obligations of$1,406 millionand$1,404 million, respectively, 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 Equity securities 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
September 30, 2016	Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
(in millions of U.S. dollars)
Collateral pledged under repurchase agreements:
U.S. Treasury and agency	$	5	$	—	$	232	$	237
Mortgage-backed securities	408		484		335		1,227
	$	413	$	484	$	567	$	1,464
Gross amount of recognized liabilities for repurchase agreements							$	1,406
Difference(1)							$	58

⁽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.

32

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

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

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Investment and embedded derivative instruments
Foreign currency forward contracts	$	(10	)	$	15		$	(30	)	$	30
All other futures contracts and options	8			(23		)	(63		)	(10		)
Convertible securities(1)	3			(14		)	8			(14		)
Total investment and embedded derivative instruments	$	1		$	(22	)	$	(85	)	$	6
GLB and other derivative instruments
GLB(2)	$	89		$	(396	)	$	(270	)	$	(337	)
Futures contracts on equities(3)	(45		)	84			(88		)	71
Options on equity market indices(3)	—			(1		)	—			(2		)
Other	3			(9		)	1			(10		)
Total GLB and other derivative instruments	$	47		$	(322	)	$	(357	)	$	(278	)
	$	48		$	(344	)	$	(442	)	$	(272	)

⁽¹⁾  Includes embedded derivatives.

⁽²⁾  Excludes foreign exchange gains (losses) related to GLB.

⁽³⁾  Related to GMDB and GLB blocks of business.

c) Derivative instrument objectives

(i) Foreign currency exposure management

A foreign currency forward contract (forward) is an agreement between participants to exchange specific foreign 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 reserves for GMDB and 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 the 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.

Another use for option contracts is to limit exposure to a severe equity market decline, which would cause an increase in expected claims and therefore, an increase in reserves for GMDB and GLB reinsurance business.

The price of an option is influenced by the underlying security, 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

33

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

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.

Cross-currency swaps

Cross-currency swaps are agreements under which two counterparties exchange interest payments and principal denominated in different currencies at a future date.  We use cross-currency swaps to reduce the foreign currency and interest rate risk by converting cash flows back into local currency.  We invest in foreign currency denominated investments to improve credit diversification and also to obtain better duration matching to our liabilities that is limited in the local currency market.

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. Also included within Other are certain life insurance products that meet the definition of a derivative instrument for accounting purposes. 

(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 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. Premiums received under the reinsurance treaties are classified as premium. Expected losses allocated to premiums received are classified as Future policy benefits and valued similar to GMDB reinsurance. Other changes in fair value, principally arising from changes in expected losses allocated to expected future premiums, are classified as Net realized gains (losses). 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 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. We believe this presentation provides the most meaningful disclosure of changes in the underlying risk within the GLB reinsurance programs for a given reporting period.

d) Fixed maturities

At September 30, 2016, we have commitments to purchase fixed income securities of $788 million over the next several years.

e) Other investments

At September 30, 2016, included in Other investments in the consolidated balance sheet are investments in limited partnerships and partially-owned investment companies with a carrying value of $3.3 billion. In connection with these investments, we have commitments that may require funding of up to $2.0 billion over the next several years.

f) Taxation

In September, the IRS completed its examination of one of our subsidiary’s federal tax returns for the 2010-2012 tax years.  No material adjustments resulted from this examination. At September 30, 2016, $17 million of unrecognized tax benefits remains 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 of taxing authorities. With few exceptions, Chubb is no longer subject to state and local or non-U.S. income tax examinations for years before 2006.

34

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

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.

9. 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 consolidated financial statements. Under Swiss corporate law, dividends, including distributions through a reduction in par value (par value reduction) or from legal reserves, must be stated in Swiss francs though dividend payments are made by Chubb in U.S. dollars. At September 30, 2016, our Common Shares had a par value of CHF 24.15 per share.

At our May 2014 annual general meeting, our shareholders approved an annual dividend for the following year of $2.60 per share, payable in four quarterly installments of $0.65 per share after the annual general meeting in the form of a distribution by way of a par value reduction.

At our May 2015 annual general meeting, our shareholders approved an annual dividend for the following year of up to $2.68 per share, which was paid in four quarterly installments of $0.67 per share at dates determined by the Board of Directors (Board) after the annual general meeting by way of a distribution from capital contribution reserves, transferred to free reserves for payment.

At our May 2016 annual general meeting, our shareholders approved an annual dividend for the following year of up to $2.76 per share, expected to be paid in four quarterly installments of $0.69 per share after the annual general meeting by way of distribution from capital contribution reserves, transferred to free reserves for payment. The Board will determine the record and payment dates at which the annual dividend may be paid until the date of the 2017 annual general meeting, and is authorized to abstain from distributing a dividend at their discretion.

The following table presents dividend distributions per Common Share in Swiss francs (CHF) and U.S. dollars (USD):

	Three Months Ended						Nine Months Ended
	September 30						September 30
	2016			2015			2016			2015
	CHF	USD		CHF	USD		CHF	USD		CHF	USD
Dividends – par value reduction	—	$	—	—	$	—	—	$	—	0.62	$	0.65
Dividends – distributed from capital contribution reserves	0.67	0.69		0.65	0.67		2.01	2.05		1.27	1.34
Total dividend distributions per common share	0.67	$	0.69	0.65	$	0.67	2.01	$	2.05	1.89	$	1.99

Common Shares in treasury are used principally for issuance upon the exercise of employee stock options, grants of restricted stock, and purchases under the Employee Stock Purchase Plan (ESPP). At September 30, 2016, 14,497,754 Common Shares remain in treasury after net shares redeemed under employee share-based compensation plans.

Chubb Limited securities repurchase authorization

In November 2014, the Board authorized a share repurchase program of $1.5 billion of Chubb's Common Shares for the period January 1, 2015 through December 31, 2015. For the three and nine months ended September 30, 2015, Chubb repurchased nil and $734 million (6,677,663 Common Shares), respectively. There are no outstanding repurchase authorizations subsequent to December 31, 2015.

35

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

10. Share-based compensation

The ACE Limited 2004 Long-Term Incentive Plan (the 2004 LTIP) permitted 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 vesting period, which is also the requisite service period. On February 25, 2016, Chubb granted 1,926,842 stock options with a weighted-average grant date fair value of $21.52 each. The fair value of the options issued is estimated on the grant date using the Black-Scholes option pricing model.

The 2004 LTIP also permitted 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 stock awards comprise target awards which have four installments that vest annually based on tangible book value (shareholders' equity less goodwill and intangible assets) per share growth compared to a defined group of peer companies, and premium awards, which are earned only if tangible book value per share growth over the cumulative 4-year period after the grant of the associated target awards exceeds a higher threshold compared to our peer group. The restricted stock is granted at market close price on the grant date. On February 25, 2016, Chubb granted 1,119,686 service-based restricted stock awards, 337,581 service-based restricted stock units, and 452,820 performance-based stock awards to employees and officers with a grant date fair value of $118.39 each. Each restricted stock unit represents our obligation to deliver to the holder one Common Share upon vesting.

In connection with the Chubb Corp acquisition, we assumed outstanding equity awards consisting of service-based restricted stock units, performance-based restricted stock units, and stock options issued by Chubb Corporation to employees and directors with a fair value of approximately $525 million, of which $323 million is attributed to purchase consideration for the acquisition. These awards were generally granted with a 3-year vesting period, and the stock options generally have a 10-year term.

In May 2016, our shareholders approved the Chubb Limited 2016 Long-Term Incentive Plan (the 2016 LTIP), which replaced both the 2004 LTIP and The Chubb Corporation Long-Term Incentive Plan (2014). The 2016 LTIP is substantially similar to the 2004 LTIP in its operation and the types of awards that may be granted.

Under the 2016 LTIP, 19,500,000 Common Shares were authorized to be issued, in addition to any shares that have not been delivered pursuant to the 2004 LTIP and remain available for grant pursuant to the 2004 LTIP, including any shares covered by awards granted under the 2004 LTIP that are forfeited, expire, or are canceled after the effective date of the 2016 LTIP without delivery of shares or which result in the forfeiture of the shares back to Chubb.

11. Postretirement benefits

We maintain non-contributory defined benefit pension plans and other postretirement plans that cover certain employees located in the U.S., Europe, Asia, Canada, and Mexico. All underlying plans are subject to periodic actuarial valuations by qualified actuarial firms using actuarial models to calculate the expense and liability for each plan. Components of the funded status of the pension and other postretirement benefit plans are included in Accounts payable, accrued expenses, and other liabilities in the consolidated balance sheets.

Chubb provides postretirement benefits to eligible employees and their dependents through various defined contribution plans and defined benefit plans sponsored by Chubb. With the acquisition, Chubb assumed the outstanding pension obligations of legacy Chubb Corp, which consisted of several non-contributory defined benefit pension plans covering substantially all its employees.

We also assumed legacy Chubb Corp other postretirement benefits plans, principally health care and life insurance, to retired employees, their beneficiaries, and covered dependents. Health care coverage is contributory. Retiree contributions vary based upon retiree’s age, type of coverage, and years of service requirements. Life insurance coverage is non-contributory. Chubb funds a portion of the health care benefits obligation where such funding can be accomplished on a tax-effective basis. Benefits are paid as covered expenses are incurred.

As part of purchase accounting, Chubb eliminated legacy Chubb Corp’s postretirement benefit costs not yet recognized in Net income that were recorded in Accumulated other comprehensive income at the time of the acquisition. In addition, Chubb conformed the accounting policies for the acquired plans of legacy Chubb Corp to the accounting policies of Chubb, including

36

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

selecting the applicable discount rates using specific spot rates along a yield curve determined by the projected cash flows assumptions. This resulted in a lower overall discount rate used to determine the benefit obligation and therefore increased that obligation at the date of the acquisition.

At the date of the acquisition of Chubb Corp, we assumed the following postretirement benefit plan assets and obligations:

	Pension Benefits									Other Postretirement Benefits
January 14, 2016	U.S. Plans			Non-U.S. Plans			Total			U.S. Plans			Non-U.S. Plans			Total
(in millions of U.S. dollars)
Fair value of plan assets	$	2,473		$	315		$	2,788		$	138		$	—		$	138
Benefit obligations	(3,153		)	(372		)	(3,525		)	(491		)	(15		)	(506		)
Funded status	$	(680	)	$	(57	)	$	(737	)	$	(353	)	$	(15	)	$	(368	)

Chubb’s funding policy is to contribute amounts that meet regulatory requirements plus additional amounts determined based on actuarial valuations, market conditions and other factors. All benefit plans satisfy minimum funding requirements of the Employee Retirement Income Security Act of 1974 (ERISA). 

For the three and nine months endedSeptember 30, 2016, we contributed $24 million and $156 million, respectively, to our U.S. and non-U.S. pension and other postretirement benefits plans. At September 30, 2016, we estimate that we will contribute an additional $8 million for the remainder of 2016. These estimates are subject to change due to contribution decisions that are affected by various factors including our liquidity, market performance and management discretion.

The following tables summarize the components of net periodic benefit costs for our pension and postretirement benefit plans recognized in the Consolidated statements of operations:

Three Months Ended September 30	Pension Benefits									Other Postretirement Benefits
(in millions of U.S. dollars)	U.S. Plans			Non-U.S. Plans			Total			U.S. Plans			Non-U.S. Plans		Total
2016
Net periodic benefit cost:
Service cost	$	20		$	6		$	26		$	4		$	—	$	4
Interest cost	26			8			34			4			—		4
Expected return on plan assets	(42		)	(10		)	(52		)	(3		)	—		(3		)
Amortization of net actuarial loss	—			—			—			—			—		—
Curtailments	(4		)	—			(4		)	—			—		—
Settlements	(1		)	—			(1		)	—			—		—
Net periodic benefit cost	$	(1	)	$	4		$	3		$	5		$	—	$	5
2015
Net periodic benefit cost:
Service cost	$	—		$	2		$	2
Interest cost	—			5			5
Expected return on plan assets	—			(7		)	(7		)
Amortization of net actuarial loss	—			—			—
Net periodic benefit cost	$	—		$	—		$	—

37

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Nine Months Ended September 30	Pension Benefits									Other Postretirement Benefits
(in millions of U.S. dollars)	U.S. Plans			Non-U.S. Plans			Total			U.S. Plans			Non-U.S. Plans		Total
2016
Net periodic benefit cost:
Service cost	$	57		$	15		$	72		$	8		$	1	$	9
Interest cost	80			24			104			13			—		13
Expected return on plan assets	(121		)	(30		)	(151		)	(7		)	—		(7		)
Amortization of net actuarial loss	—			2			2			—			—		—
Curtailments	(4		)	—			(4		)	—			—		—
Settlements	(1		)	—			(1		)	—			—		—
Net periodic benefit cost	$	11		$	11		$	22		$	14		$	1	$	15
2015
Net periodic benefit cost:
Service cost	$	—		$	5		$	5
Interest cost	—			15			15
Expected return on plan assets	—			(21		)	(21		)
Amortization of net actuarial loss	—			2			2
Net periodic benefit cost	$	—		$	1		$	1

The weighted-average assumptions used to determine net pension and other postretirement benefit costs were as follows:

	Pension Benefits				Other Postretirement Benefits
	U.S. Plans		Non-U.S. Plans		U.S. Plans		Non-U.S. Plans
September 30, 2016
Discount rate	4.28	%	3.74	%	4.41	%	4.30	%
Rate of compensation increase	4.00	%	3.40	%	N/A		N/A
Expected long-term rate of return on plan assets	7.00	%	4.90	%	7.00	%	N/A
December 31, 2015
Discount rate	N/A		3.51	%	N/A		N/A
Rate of compensation increase	N/A		3.09	%	N/A		N/A
Expected long-term rate of return on plan assets	N/A		4.81	%	N/A		N/A

12. Segment information

Effective the first quarter of 2016, we are reporting our financial results within 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. We have also redefined Corporate to include all run-off asbestos and environmental (A&E) exposures, the results of run-off Brandywine business, the results of Westchester specialty operations for 1996 and prior years and certain other run-off exposures. All legacy ACE prior period amounts (i.e., legacy Chubb Corp prior period results are not included in the prior period amounts in the tables below) have been adjusted to conform to the new segment presentation.

• The North America Commercial P&C Insurance segment includes the business written by Chubb divisions that provide property and casualty (P&C) insurance and services to large, middle market and small commercial businesses in the U.S., Bermuda and Canada. These divisions write a variety of coverages, including traditional commercial property, marine,

38

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

general casualty, workers’ compensation, package policies, and risk management; specialty categories such as professional lines, marine and construction risk, environmental and cyber risk, excess casualty, as well as group accident and health (A&H) insurance. This segment includes our North American Major Accounts and Specialty Insurance (principally large corporate accounts and wholesale business), and the Commercial Insurance divisions (principally middle market and small commercial accounts).

• The North America Personal P&C Insurance segment includes the business written by Chubb’s North America Personal Risk Services division, which comprises Chubb high net worth personal lines business and ACE Private Risk Services, with operations in U.S. and Canada. This segment provides affluent and high net worth individuals and families with homeowners, automobile, valuables, umbrella and recreational marine insurance and services.

• The North America Agricultural Insurance segment includes the business written by Rain and Hail Insurance Service, Inc. which provides comprehensive multiple peril crop and crop-hail insurance, and Chubb Agribusiness, which offers farm and ranch property as well as specialty P&C coverages, including commercial agriculture products.

• The Overseas General Insurance segment includes the business written by two Chubb divisions that provide P&C insurance and services in the 51 countries outside of North America where the company operates.  Chubb International provides commercial P&C traditional and specialty lines serving large corporations, middle market and small customers, A&H and traditional and specialty personal lines through retail brokers, agents and other channels locally around the world. Chubb Global Markets provides commercial P&C excess and surplus lines and A&H through wholesale brokers in the London market and through Lloyd’s.  These divisions write a variety of coverages, including traditional commercial property and casualty, specialty categories such as financial lines, marine, energy, aviation, political risk and construction risk, as well as group A&H and traditional and specialty personal lines. 

• The Global Reinsurance segment primarily includes the reinsurance business written by Chubb Tempest Re as well as the legacy Chubb U.K. Assumed Reinsurance business, which is active, and the legacy Chubb Corp run-off Reinsurance business.

• The Life Insurance segment includes the business written by Chubb Life, Chubb Tempest Life Re and Combined Insurance’s North America operations.

Corporate primarily includes loss and loss expenses of asbestos and environmental (A&E) run-off liabilities, and the results of our non-insurance companies including Chubb Limited, Chubb Group Management and Holdings Ltd, and Chubb INA Holdings, Inc. Our exposure to A&E claims principally arises out of liabilities acquired when we purchased Westchester Specialty in 1998, CIGNA’s P&C business in 1999, legacy Chubb Corp run-off business in 2016, and certain other run-off exposures.

In addition, revenue and expenses managed at the corporate level, including realized gains and losses, interest expense, the non-operating income of our partially-owned entities, and income taxes are reported within Corporate. Chubb integration expenses and other merger-related expenses (both included in Chubb integration expenses in the consolidated statements of operations) are also reported within Corporate. Chubb integration expenses are one-time costs that are directly attributable to the achievement of the annualized savings, including employee severance, third-party consulting fees, and systems integration expenses. Other merger-related expenses are one-time costs directly attributable to the merger, including rebranding, employee retention costs and other professional and legal fees related to the Chubb Corp acquisition. These items will not be allocated to the segment level as they are one-time in nature and are not related to the ongoing business activities of the segment. The Chief Executive Officer does not manage segment results or allocate resources to segments when considering these costs and they are therefore excluded from our definition of segment income. Therefore, the segment income statement will only include underwriting income, net investment income, 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. Beginning with the third quarter of 2016, segment income also included amortization of purchased intangibles related to business combination intangible assets acquired by the segment and other purchase accounting related intangible assets, including agency relationships, renewal rights, and client lists. These costs were previously included in Corporate. The amortization of intangible assets purchased as part of the Chubb Corp acquisition is considered a Corporate cost as these are incurred by the overall company. We determined that this definition of segment income is appropriate and aligns with how the business is managed. The prior periods have been adjusted to conform to the new segment presentation. As we progress through the integration and refine our processes, we may continue to further refine our segments and segment income measures.

39

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

For segment reporting purposes, certain items have been presented in a different manner below than in the consolidated financial statements. Management uses underwriting income as the main measure of segment performance. Chubb calculates underwriting income by subtracting Losses and loss expenses, Policy benefits, Policy acquisition costs, and Administrative expenses from Net premiums earned. To calculate segment income, include net investment income, the operating portion of other (income) expense,and amortization of purchased intangibles. For the North America Agricultural Insurance segment, management includes gains and losses on crop derivatives as a component of underwriting income. For example, for the three months ended September 30, 2016, underwriting income in our North America Agricultural Insurance segment was $90 million. This amount includes $3 million of realized gains related to crop derivatives which are reported in Net realized gains (losses) in the Corporate column below.

For the Life Insurance segment, management 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 as components of Life Insurance underwriting income. For example, for the three months ended September 30, 2016, Life underwriting income of $72 million includes Net investment income of $71 million and gains from fair value changes in separate account assets of $22 million. The gains from fair value changes in separate account assets are reported in other (income) expense in the table below.

The following tables present the Statement of Operations by segment:

	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance			Global Reinsurance		Life Insurance			Corporate			Chubb Consolidated
For the Three Months Ended
September 30, 2016
(in millions of U.S. dollars)
Net premiums written	$	3,110	$	1,011	$	849	$	1,940		$	131	$	532		$	—		$	7,573
Net premiums earned	3,086		1,081		819		2,034			156		512			—			7,688
Losses and loss expenses	1,863		594		683		843			49		174			63			4,269
Policy benefits	—		—		—		—			—		155			—			155
Policy acquisition costs	522		229		48		546			42		127			—			1,514
Administrative expenses	275		89		1		261			12		77			57			772
Underwriting income (loss)	426		169		87		384			53		(21		)	(120		)	978
Net investment income (loss)	477		53		5		152			67		71			(86		)	739
Other (income) expense	3		2		—		(6		)	—		(20		)	(70		)	(91		)
Amortization expense (benefit) of purchased intangibles	—		4		7		12			—		1			(20		)	4
Segment income (loss)	900		216		85		530			120		69			(116		)	1,804
Net realized gains including OTTI															100			100
Interest expense															152			152
Chubb integration expenses															115			115
Income tax expense															277			277
Net income (loss)															$	(560	)	$	1,360

40

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

	North America Commercial P&C Insurance			North America Personal P&C Insurance		North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Life Insurance		Corporate			Chubb Consolidated
For the Three Months Ended
September 30, 2015
(in millions of U.S. dollars)
Net premiums written	$	1,433		$	278	$	737		$	1,584		$	185		$	492	$	—		$	4,709
Net premiums earned	1,410			272		739			1,615			203			480		—			4,719
Losses and loss expenses	913			179		620			674			20			153		84			2,643
Policy benefits	—			—		—			—			—			89		—			89
Policy acquisition costs	142			13		42			405			52			117		—			771
Administrative expenses	154			36		—			246			12			74		46			568
Underwriting income (loss)	201			44		77			290			119			47		(130		)	648
Net investment income	260			7		5			132			76			66		3			549
Other (income) expense	(3		)	1		(1		)	(6		)	(4		)	48		(23		)	12
Amortization of purchased intangibles	—			31		8			12			—			—		—			51
Segment income (loss)	464			19		75			416			199			65		(104		)	1,134
Net realized gains (losses) including OTTI																	(397		)	(397		)
Interest expense																	68			68
Chubb integration expenses																	9			9
Income tax expense																	132			132
Net income (loss)																	$	(710	)	$	528

	North America Commercial P&C Insurance			North America Personal P&C Insurance		North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Life Insurance			Corporate			Chubb Consolidated
For the Nine Months Ended
September 30, 2016
(in millions of U.S. dollars)
Net premiums written	$	8,657		$	3,113	$	1,288		$	6,012		$	562		$	1,575		$	—		$	21,207
Net premiums earned	9,130			3,245		1,169			6,082			543			1,521			—			21,690
Losses and loss expenses	5,581			1,916		937			2,953			225			498			87			12,197
Policy benefits	—			—		—			—			—			427			—			427
Policy acquisition costs	1,549			747		77			1,586			142			386			—			4,487
Administrative expenses	840			275		(1		)	801			40			226			192			2,373
Underwriting income (loss)	1,160			307		156			742			136			(16		)	(279		)	2,206
Net investment income (loss)	1,371			155		15			445			199			207			(271		)	2,121
Other (income) expense	(6		)	6		—			(16		)	(3		)	(14		)	(59		)	(92		)
Amortization expense (benefit) of purchased intangibles	—			16		22			36			—			2			(60		)	16
Segment income (loss)	2,537			440		149			1,167			338			203			(431		)	4,403
Net realized gains (losses) including OTTI																		(510		)	(510		)
Interest expense																		451			451
Chubb integration expenses																		361			361
Income tax expense																		556			556
Net income (loss)																		$	(2,309	)	$	2,525

41

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

	North America Commercial P&C Insurance			North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance			Global Reinsurance			Life Insurance		Corporate			Chubb Consolidated
For the Nine Months Ended
September 30, 2015
(in millions of U.S. dollars)
Net premiums written	$	4,158		$	958	$	1,204	$	5,047		$	719		$	1,483	$	—		$	13,569
Net premiums earned	4,209			687		1,124		4,896			649			1,441		—			13,006
Losses and loss expenses	2,744			446		913		2,304			191			442		142			7,182
Policy benefits	—			—		—		—			—			384		—			384
Policy acquisition costs	403			43		61		1,190			166			342		—			2,205
Administrative expenses	459			89		3		756			37			221		135			1,700
Underwriting income (loss)	603			109		147		646			255			52		(277		)	1,535
Net investment income	780			19		17		409			230			198		9			1,662
Other (income) expense	(5		)	1		1		(12		)	(5		)	32		(73		)	(61		)
Amortization of purchased intangibles	—			63		22		50			—			1		—			136
Segment income (loss)	1,388			64		141		1,017			490			217		(195		)	3,122
Net realized gains (losses) including OTTI																(360		)	(360		)
Interest expense																207			207
Chubb integration expenses																9			9
Income tax expense																395			395
Net income (loss)																$	(1,166	)	$	2,151

Underwriting assets are reviewed in total by management for purposes of decision-making. Other than goodwill and other intangible assets, Chubb does not allocate assets to its segments.

13. Earnings per share

	Three Months Ended				Nine Months Ended
	September 30				September 30
(in millions of U.S. dollars, except share and per share data)	2016		2015		2016		2015
Numerator:
Net income	$	1,360	$	528	$	2,525	$	2,151
Denominator:
Denominator for basic earnings per share:
Weighted-average shares outstanding	468,021,093		324,210,936		460,631,794		325,904,502
Denominator for diluted earnings per share:
Share-based compensation plans	3,375,269		2,962,484		3,439,017		3,269,724
Weighted-average shares outstanding and assumed conversions	471,396,362		327,173,420		464,070,811		329,174,226
Basic earnings per share	$	2.90	$	1.63	$	5.48	$	6.60
Diluted earnings per share	$	2.88	$	1.62	$	5.44	$	6.53
Potential anti-dilutive share conversions	1,306,710		1,907,815		1,635,337		1,503,830

Excluded from weighted-average shares outstanding and assumed conversions is the impact of securities that would have been anti-dilutive during the respective periods.

42

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

14. Information provided in connection with outstanding debt of subsidiaries

In connection with the Chubb Corp acquisition, Chubb INA Holdings Inc., entered into a series of intercompany loans totaling $10 billion involving its parents, Chubb Group Holdings Inc. and Chubb Limited. The weighted-average interest rate is 3.3 percent with fixed interest rates ranging from 2.3 percent to 4.35 percent and various maturity dates from 2021 to 2046.

As part of the acquisition, Chubb INA Holdings Inc. assumed $3.3 billion par value outstanding debt of Chubb Corp, fair valued at $3.8 billion at the acquisition date. Chubb INA Holdings Inc. assumed Chubb Corp's rights, duties and obligations and Chubb Limited fully and unconditionally guarantees Chubb INA Holding Inc.'s payment obligations under these debts.

The following tables present condensed consolidating financial information at September 30, 2016 and December 31, 2015, and for the three and nine months endedSeptember 30, 2016 and 2015 for Chubb Limited (Parent Guarantor) and Chubb INA Holdings Inc. (Subsidiary Issuer). The transactions noted above are reflected in the tables below. The Subsidiary Issuer is an indirect 100 percent-owned subsidiary of the Parent Guarantor. The Parent Guarantor fully and unconditionally guarantees certain of the debt of the Subsidiary Issuer. Condensed consolidating financial information of the Parent Guarantor and Subsidiary Issuer are presented on the equity method of accounting. The revenues and expenses and cash flows of the subsidiaries of the Subsidiary Issuer are presented in the Other Chubb Limited Subsidiaries column on a combined basis.

43

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Condensed Consolidating Balance Sheet at September 30, 2016

(in millions of U.S. dollars)	Chubb Limited (Parent Guarantor)		Chubb INA Holdings Inc. (Subsidiary Issuer)		Other Chubb Limited Subsidiaries		Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
Assets
Investments	$	25	$	812	$	100,199	$	—		$	101,036
Cash (1)	6		2		2,158		(1,296		)	870
Insurance and reinsurance balances receivable	—		—		11,392		(2,899		)	8,493
Reinsurance recoverable on losses and loss expenses	—		—		23,642		(10,194		)	13,448
Reinsurance recoverable on policy benefits	—		—		1,167		(972		)	195
Value of business acquired	—		—		368		—			368
Goodwill and other intangible assets	—		—		22,472		—			22,472
Investments in subsidiaries	38,403		50,316		—		(88,719		)	—
Due from subsidiaries and affiliates, net	11,186		—		—		(11,186		)	—
Other assets	5		366		18,856		(4,299		)	14,928
Total assets	$	49,625	$	51,496	$	180,254	$	(119,565	)	$	161,810
Liabilities
Unpaid losses and loss expenses	$	—	$	—	$	70,882	$	(9,535	)	$	61,347
Unearned premiums	—		—		18,773		(3,719		)	15,054
Future policy benefits	—		—		5,982		(972		)	5,010
Due to subsidiaries and affiliates, net	—		10,996		190		(11,186		)	—
Affiliated notional cash pooling programs (1)	927		369		—		(1,296		)	—
Repurchase agreements	—		—		1,406		—			1,406
Short-term debt	—		500		—		—			500
Long-term debt	—		12,610		11		—			12,621
Trust preferred securities	—		308		—		—			308
Other liabilities	326		1,588		19,416		(4,138		)	17,192
Total liabilities	1,253		26,371		116,660		(30,846		)	113,438
Total shareholders’ equity	48,372		25,125		63,594		(88,719		)	48,372
Total liabilities and shareholders’ equity	$	49,625	$	51,496	$	180,254	$	(119,565	)	$	161,810

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

44

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Condensed Consolidating Balance Sheet at December 31, 2015

(in millions of U.S. dollars)	Chubb Limited (Parent Guarantor)		Chubb INA Holdings Inc. (Subsidiary Issuer)		Other Chubb Limited Subsidiaries		Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
Assets
Investments	$	28	$	7,839	$	58,384	$	—		$	66,251
Cash (1)	1		2		2,743		(971		)	1,775
Insurance and reinsurance balances receivable	—		—		6,075		(752		)	5,323
Reinsurance recoverable on losses and loss expenses	—		—		20,124		(8,738		)	11,386
Reinsurance recoverable on policy benefits	—		—		1,129		(942		)	187
Value of business acquired	—		—		395		—			395
Goodwill and other intangible assets	—		—		5,683		—			5,683
Investments in subsidiaries	29,612		18,386		—		(47,998		)	—
Due from subsidiaries and affiliates, net	644		1,800		—		(2,444		)	—
Other assets	8		457		14,434		(3,593		)	11,306
Total assets	$	30,293	$	28,484	$	108,967	$	(65,438	)	$	102,306
Liabilities
Unpaid losses and loss expenses	$	—	$	—	$	45,490	$	(8,187	)	$	37,303
Unearned premiums	—		—		10,243		(1,804		)	8,439
Future policy benefits	—		—		5,749		(942		)	4,807
Due to subsidiaries and affiliates, net	—		—		2,444		(2,444		)	—
Affiliated notional cash pooling programs (1)	882		89		—		(971		)	—
Repurchase agreements	—		—		1,404		—			1,404
Long-term debt	—		9,378		11		—			9,389
Trust preferred securities	—		307		—		—			307
Other liabilities	276		1,422		12,916		(3,092		)	11,522
Total liabilities	1,158		11,196		78,257		(17,440		)	73,171
Total shareholders’ equity	29,135		17,288		30,710		(47,998		)	29,135
Total liabilities and shareholders’ equity	$	30,293	$	28,484	$	108,967	$	(65,438	)	$	102,306

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

45

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Condensed Consolidating Statements of Operations and Comprehensive Income

For the Three Months Ended September 30, 2016	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	7,573		$	—		$	7,573
Net premiums earned	—			—			7,688			—			7,688
Net investment income	1			2			736			—			739
Equity in earnings of subsidiaries	1,292			748			—			(2,040		)	—
Net realized gains (losses) including OTTI	—			(2		)	102			—			100
Losses and loss expenses	—			—			4,269			—			4,269
Policy benefits	—			—			155			—			155
Policy acquisition costs and administrative expenses	15			12			2,259			—			2,286
Interest (income) expense	(93		)	233			12			—			152
Other (income) expense	(7		)	6			(90		)	—			(91		)
Amortization of purchased intangibles	—			—			4			—			4
Chubb integration expenses	12			16			87			—			115
Income tax expense (benefit)	6			(136		)	407			—			277
Net income	$	1,360		$	617		$	1,423		$	(2,040	)	$	1,360
Comprehensive income	$	1,376		$	627		$	1,439		$	(2,066	)	$	1,376

Condensed Consolidating Statements of Operations and Comprehensive Income

For the Three Months Ended September 30, 2015	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	4,709		$	—		$	4,709
Net premiums earned	—			—			4,719			—			4,719
Net investment income	1			1			547			—			549
Equity in earnings of subsidiaries	488			255			—			(743		)	—
Net realized gains (losses) including OTTI	—			(4		)	(393		)	—			(397		)
Losses and loss expenses	—			—			2,643			—			2,643
Policy benefits	—			—			89			—			89
Policy acquisition costs and administrative expenses	15			7			1,317			—			1,339
Interest (income) expense	(8		)	68			8			—			68
Other (income) expense	(51		)	(5		)	68			—			12
Amortization of purchased intangibles	—			—			51			—			51
Chubb integration expenses	1			8			—			—			9
Income tax expense (benefit)	4			(31		)	159			—			132
Net income	$	528		$	205		$	538		$	(743	)	$	528
Comprehensive income (loss)	$	(271	)	$	(265	)	$	(262	)	$	527		$	(271	)

46

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Condensed Consolidating Statements of Operations and Comprehensive Income

Nine Months Ended September 30, 2016	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	21,207		$	—		$	21,207
Net premiums earned	—			—			21,690			—			21,690
Net investment income	3			9			2,109			—			2,121
Equity in earnings of subsidiaries	2,331			1,803			—			(4,134		)	—
Net realized gains (losses) including OTTI	(1		)	(3		)	(506		)	—			(510		)
Losses and loss expenses	—			—			12,197			—			12,197
Policy benefits	—			—			427			—			427
Policy acquisition costs and administrative expenses	48			144			6,668			—			6,860
Interest (income) expense	(266		)	681			36			—			451
Other (income) expense	(20		)	26			(98		)	—			(92		)
Amortization of purchased intangibles	—			—			16			—			16
Chubb integration expenses	29			56			276			—			361
Income tax expense (benefit)	17			(323		)	862			—			556
Net income	$	2,525		$	1,225		$	2,909		$	(4,134	)	$	2,525
Comprehensive income	$	4,457		$	2,687		$	4,841		$	(7,528	)	$	4,457

Condensed Consolidating Statements of Operations and Comprehensive Income

Nine Months Ended September 30, 2015	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	13,569		$	—		$	13,569
Net premiums earned	—			—			13,006			—			13,006
Net investment income	2			2			1,658			—			1,662
Equity in earnings of subsidiaries	2,037			755			—			(2,792		)	—
Net realized gains (losses) including OTTI	—			(6		)	(354		)	—			(360		)
Losses and loss expenses	—			—			7,182			—			7,182
Policy benefits	—			—			384			—			384
Policy acquisition costs and administrative expenses	47			20			3,838			—			3,905
Interest (income) expense	(23		)	206			24			—			207
Other (income) expense	(149		)	(12		)	100			—			(61		)
Amortization of purchased intangibles	—			—			136			—			136
Chubb integration expenses	1			8			—			—			9
Income tax expense (benefit)	12			(84		)	467			—			395
Net income	$	2,151		$	613		$	2,179		$	(2,792	)	$	2,151
Comprehensive income (loss)	$	768		$	(332	)	$	795		$	(463	)	$	768

47

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2016	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net cash flows from operating activities	$	3,399		$	3,892		$	3,918		$	(7,372	)	$	3,837
Cash flows from investing activities
Purchases of fixed maturities available for sale	—			(154		)	(23,683		)	—			(23,837		)
Purchases of fixed maturities held to maturity	—			—			(189		)	—			(189		)
Purchases of equity securities	—			—			(100		)	—			(100		)
Sales of fixed maturities available for sale	—			66			13,797			—			13,863
Sales of equity securities	—			—			963			—			963
Maturities and redemptions of fixed maturities available for sale	—			59			6,877			—			6,936
Maturities and redemptions of fixed maturities held to maturity	—			—			627			—			627
Net change in short-term investments	—			7,627			4,239			—			11,866
Net derivative instruments settlements	—			(10		)	(171		)	—			(181		)
Acquisition of subsidiaries (net of cash acquired of $71)	—			(14,282		)	34			—			(14,248		)
Capital contribution	(2,330		)	(20		)	(2,330		)	4,680			—
Other	—			(3		)	29			—			26
Net cash flows (used for) from investing activities	(2,330		)	(6,717		)	93			4,680			(4,274		)
Cash flows from financing activities
Dividends paid on Common Shares	(851		)	—			—			—			(851		)
Proceeds from issuance of repurchase agreements	—			—			1,457			—			1,457
Repayment of repurchase agreements	—			—			(1,455		)	—			(1,455		)
Proceeds from share-based compensation plans, including windfall tax benefits	—			—			117			—			117
Dividend to parent company	—			—			(7,372		)	7,372			—
Advances (to) from affiliates	(258		)	219			39			—			—
Capital contribution	—			2,330			2,350			(4,680		)	—
Net proceeds from (payments to) affiliated notional cash pooling programs(1)	45			280			—			(325		)	—
Policyholder contract deposits	—			—			473			—			473
Policyholder contract withdrawals	—			—			(247		)	—			(247		)
Other	—			(4		)	—			—			(4		)
Net cash flows (used for) from financing activities	(1,064		)	2,825			(4,638		)	2,367			(510		)
Effect of foreign currency rate changes on cash and cash equivalents	—			—			42			—			42
Net increase (decrease) in cash	5			—			(585		)	(325		)	(905		)
Cash – beginning of period(1)	1			2			2,743			(971		)	1,775
Cash – end of period(1)	$	6		$	2		$	2,158		$	(1,296	)	$	870

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016 and December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

48

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – continued (Unaudited)

Chubb Limited and Subsidiaries

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2015	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net cash flows from (used for) operating activities	$	350		$	(46	)	$	2,671		$	(276	)	$	2,699
Cash flows from investing activities
Purchases of fixed maturities available for sale	—			—			(13,052		)	(8		)	(13,060		)
Purchases of fixed maturities held to maturity	—			—			(39		)	—			(39		)
Purchases of equity securities	—			—			(122		)	—			(122		)
Sales of fixed maturities available for sale	—			—			5,233			—			5,233
Sales of equity securities	—			—			150			—			150
Maturities and redemptions of fixed maturities    available for sale	—			—			5,257			—			5,257
Maturities and redemptions of fixed maturities held to maturity	—			—			552			—			552
Net change in short-term investments	—			215			206			—			421
Net derivative instruments settlements	—			(10		)	72			—			62
Acquisition of subsidiaries (net of cash acquired of $620)	—			—			259			—			259
Capital contribution	—			(625		)	—			625			—
Other	—			(25		)	(121		)	8			(138		)
Net cash flows from (used for) investing activities	—			(445		)	(1,605		)	625			(1,425		)
Cash flows from financing activities
Dividends paid on Common Shares	(644		)	—			—			—			(644		)
Common Shares repurchased	—			—			(758		)	—			(758		)
Proceeds from issuance of long-term debt	—			800			—			—			800
Proceeds from issuance of repurchase agreements	—			—			1,478			—			1,478
Repayment of long-term debt	—			(450		)	(1		)	—			(451		)
Repayment of repurchase agreements	—			—			(1,477		)	—			(1,477		)
Proceeds from share-based compensation plans, including windfall tax benefits	—			—			89			—			89
Dividend to parent company	—			—			(276		)	276			—
Advances (to) from affiliates	(416		)	272			144			—			—
Capital contribution	—			—			625			(625		)	—
Net proceeds from (payments to) affiliated notional cash pooling programs(1)	727			(121		)	—			(606		)	—
Policyholder contract deposits	—			—			351			—			351
Policyholder contract withdrawals	—			—			(159		)	—			(159		)
Other	—			(6		)	—			—			(6		)
Net cash flows used for financing activities	(333		)	495			16			(955		)	(777		)
Effect of foreign currency rate changes on cash and cash equivalents	—			—			(114		)	—			(114		)
Net increase in cash	17			4			968			(606		)	383
Cash – beginning of period(1)	—			1			1,209			(555		)	655
Cash – end of period(1)	$	17		$	5		$	2,177		$	(1,161	)	$	1,038

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2015 and December 31, 2014, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

49

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 nine months ended September 30, 2016.

All comparisons in this discussion are to the corresponding prior year periods unless otherwise indicated.

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, 2015 (2015 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	51
Overview	53
Financial Highlights	55
Consolidated Operating Results	57
Prior Period Development	63
Segment Operating Results	68
Other Income and Expense Items	86
Amortization of Purchased Intangibles	87
Net Investment Income	88
Net Realized and Unrealized Gains (Losses)	89
Investments	90
Critical Accounting Estimates	94
Reinsurance Recoverable on Ceded Reinsurance	94
Unpaid Losses and Loss Expenses	94
Asbestos and Environmental (A&E)	95
Fair Value Measurements	95
Assumed Reinsurance Programs Involving Minimum Benefit Guarantees under Variable Annuity Contracts	95
Catastrophe Management	97
Natural Catastrophe Property Reinsurance Program	98
Crop Insurance	98
Liquidity	99
Capital Resources	101

50

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. 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:

• losses arising out of natural or man-made catastrophes such as hurricanes, typhoons, earthquakes, floods, climate change (including effects on weather patterns; greenhouse gases; sea; land and air temperatures; sea levels; and rain and snow), nuclear accidents, or terrorism which could be affected by:

• the number of insureds and ceding companies affected;

• the amount and timing of losses actually incurred and reported by insureds;

• the impact of these losses on our reinsurers and the amount and timing of reinsurance recoverable actually received;

• the cost of building materials and labor to reconstruct properties or to perform environmental remediation following a catastrophic event; and

• complex coverage and regulatory issues such as whether losses occurred from storm surge or flooding and related lawsuits;

• 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 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;

• 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;

• 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;

• infection rates and severity of pandemics and their effects on our business operations and claims activity;

• 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 (which we refer to in this report as foreign exchange and foreign currency exchange), which could affect our statement of operations, investment portfolio, financial condition, and financing plans;

• general economic and business conditions resulting from volatility in the stock and credit markets and the depth and duration of potential recession;

• global political conditions, the occurrence of any terrorist attacks, including any nuclear, radiological, biological, or chemical events, or the outbreak and effects of war, and possible business disruption or economic contraction that may result from such events;

• the potential impact of the United Kingdom’s vote to withdraw from the European Union, including political, regulatory, social, and economic uncertainty and market and exchange rate volatility;

• judicial decisions and rulings, new theories of liability, legal tactics, and settlement terms;

• the effects of public company bankruptcies and/or accounting restatements, as well as disclosures by and investigations of public companies relating to possible accounting irregularities, and other corporate governance issues, including the effects of such events on:

• the capital markets;

• the markets for directors and officers (D&O) and errors and omissions (E&O) insurance; and

• claims and litigation arising out of such disclosures or practices by other companies;

51

• uncertainties relating to governmental, legislative and regulatory policies, developments, actions, investigations, and treaties, which, among other things, could subject us to insurance regulation or taxation in additional jurisdictions or affect our current operations;

• the actual amount of new and renewal business, market acceptance of our products, and risks associated with the introduction of new products and services and entering new markets, including regulatory constraints on exit strategies;

• 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;

• acquisitions made by us 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, or announced acquisitions not closing;

• risks and uncertainties relating to our acquisition of The Chubb Corporation (Chubb Corp acquisition) including our ability to successfully integrate the acquired company;

• 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;

• the potential impact from government-mandated insurance coverage for acts of terrorism;

• the availability of borrowings and letters of credit under our credit facilities;

• the adequacy of collateral supporting funded high deductible programs;

• 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 effects of investigations into market practices in the property and casualty (P&C) industry;

• changing rates of inflation and other economic conditions, for example, recession;

• the amount of dividends received from subsidiaries;

• 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; and

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

The words “believe,” “anticipate,” “estimate,” “project,” “should,” “plan,” “expect,” “intend,” “hope,” “feel,” “foresee,” “will likely result,” or “will continue,” and variations thereof and similar expressions, identify forward-looking statements. 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.

52

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 September 30, 2016, we had total assets of $162 billion and shareholders’ equity of $48 billion. Chubb was incorporated in 1985 at which time it opened its first business office in Bermuda and continues to maintain operations in Bermuda.

On January 14, 2016, we completed the acquisition of The Chubb Corporation (Chubb Corp), creating a global leader in property and casualty insurance. We have changed our name from ACE Limited to Chubb Limited and plan to adopt the Chubb name globally, although some subsidiaries may continue to use ACE as part of their names.

Products and Services

• We are a global leader in traditional and specialty P&C coverage for industrial, commercial and mid-market companies with claims and risk engineering capabilities to serve companies of all sizes. Our commercial P&C business is focused on large corporate customers that are served by retail brokers, middle market and small commercial companies served by retail independent agents and brokers, and specialty excess and surplus lines (E&S) distributed through wholesale brokers.

• On the consumer insurance side, we have a broad range of products for individual consumers and their families that include automobile, homeowners, fine art, planes and boats, personal liability, cell phones, accident, travel, supplemental health and life insurance. The consumer insurance product area where the Chubb Corp acquisition makes the greatest impact is property and casualty personal lines, primarily in the U.S. where the new Chubb remains the premier provider of personal lines to high net worth individuals and families. The balance of our global personal lines business is written outside the U.S. and ranges from general-market auto in Malaysia, Thailand and in Mexico, where we have over one million customers, to specialty mobile phone replacement coverage in Europe.

• A&H business comprises personal accident and supplemental health coverage typically sold as either a group benefit via employer plans or as special insurance protection offerings from a sponsoring organization for its members and customers. We sell our A&H products through a variety of channels including independent agents, brokers, tied agents, direct marketing and bank branches.

• Chubb Life is focused on Asia and primarily uses exclusive agency and bancassurance distribution.

• Chubb Tempest Re, our global reinsurance business, provides a broad range of traditional reinsurance coverage to a diverse array of primary P&C companies. This business is offered worldwide through major business units in Bermuda, North America, Europe, and Asia, with expertise in property catastrophe reinsurance and other diversified lines. This business has been shrinking for several years in the face of declining reinsurance rates and increasing competition.

Customers

The new Chubb today has an extremely broad mix of commercial and personal customers. On the commercial side, our customers range from large domestic companies and multinational corporations to middle market commercial businesses of all sizes to small commercial enterprises and even the microbusiness market. On the personal insurance side, our customers range from high net worth families in the U.S., where we insure their homes, cars and precious valuables, to lower-middle income consumers in emerging markets purchasing accident insurance from their credit card, cell phone or utility provider. The addition of Chubb Corp’s leading franchises serving middle market commercial customers in the U.S., Europe and several major markets in Asia and Latin America, as well as their premier business serving U.S. high net worth individuals and families, substantially deepen and broaden the company’s portfolio of customer segments.

Segment Reporting

Effective the first quarter of 2016 and subsequent to our acquisition of Chubb Corp, we operate 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. 2015 results were revised to conform to the new segment presentation and only include legacy ACE results (i.e., does not include legacy Chubb results except in "As If" presentations as defined below).

53

The segments are as follows:

• The North America Commercial P&C Insurance segment includes the business written by Chubb divisions that provide property and casualty (P&C) insurance and services to large, middle market and small commercial businesses in the U.S., Bermuda, and Canada. These divisions write a variety of coverages, including traditional commercial property, marine, general casualty, workers’ compensation, package policies, and risk management; specialty categories such as professional lines, marine and construction risk, environmental and cyber risk, excess casualty, as well as group accident and health (A&H) insurance.  The divisions included in this segment are North America Major Accounts, Commercial Insurance, Westchester, and North America Small Commercial.

• The North America Personal P&C Insurance segment includes the business written by Chubb’s North America Personal Risk Services division, which provides affluent and high net worth individuals and families with homeowners, automobile, valuables, umbrella, and recreational marine insurance and services.

• The North America Agricultural Insurance segment continues to include the business written by Rain and Hail Insurance Service, Inc. which provides comprehensive multiple peril crop and crop-hail insurance, and Chubb Agribusiness, which offers farm and ranch property as well as specialty P&C coverages, including commercial agriculture products.

• The Overseas General Insurance segment includes the business written by two Chubb divisions that provide P&C insurance and services in the 51 countries outside of North America where the company operates.  Chubb International provides commercial P&C traditional and specialty lines serving large corporations, middle market, and small customers. In addition, Chubb International provides A&H and traditional and specialty personal lines through retail brokers, agents and other channels locally around the world. Chubb Global Markets provides commercial P&C excess and surplus lines and A&H through wholesale brokers in the London market and through Lloyd’s.  These divisions write a variety of coverages, including traditional commercial property and casualty, specialty categories such as financial lines, marine, energy, aviation, political risk and construction risk, as well as group A&H and traditional and specialty personal lines. 

• The Global Reinsurance segment primarily includes the reinsurance business written by Chubb Tempest Re as well as the legacy Chubb U.K. Assumed Reinsurance business, which is active, and the legacy Chubb run-off Reinsurance business.

• The Life Insurance segment includes the business written by Chubb Life, Chubb Tempest Life Re, and Combined Insurance’s North America operations. The legacy Chubb life insurance business in Latin America is also included in this segment.

Corporate includes all run-off asbestos and environmental (A&E) exposures, the results of its run-off Brandywine business, the results of its Westchester Specialty operations for 1996 and prior years, and certain other run-off exposures. Chubb’s exposure to A&E claims principally arises out of liabilities acquired when it purchased Westchester Specialty in 1998, CIGNA’s P&C business in 1999, and legacy Chubb business in 2016. These A&E liabilities principally relate to claims arising from bodily-injury claims related to asbestos products and remediation costs associated with hazardous waste sites.  Corporate also includes the results of Chubb’s non-insurance companies, including Chubb Limited, Chubb Group Management and Holdings Ltd., and Chubb INA Holdings Inc. (Chubb INA).  Corporate results consist primarily of investment income, including the amortization of the fair value adjustment of acquired invested assets related to the Chubb Corp acquisition, the non-operating income of our partially-owned entities, interest expense, corporate staff expenses, Chubb integration expenses and other merger-related expenses (both included in Chubb integration expenses in the consolidated statements of operations) and other expenses not attributable to specific reportable segments. Chubb integration expenses are one-time costs that are directly attributable to the achievement of the annualized savings, including employee severance, third-party consulting fees, and systems integration expenses. Other merger-related expenses are one-time costs directly attributable to the merger, including rebranding, employee retention costs and other professional and legal fees related to the Chubb Corp acquisition. The Chief Executive Officer does not manage segment results or allocate resources to segments when considering these costs and they are therefore excluded from our definition of segment income.

Segment income includes underwriting income, investment income, 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. Beginning with the third quarter of 2016, segment income also included amortization of purchased intangibles related to business combination intangible assets acquired by the segment and other purchase accounting related intangible assets, including agency relationships, renewal rights, and client lists. These costs were previously included in Corporate. The amortization of intangible assets purchased as part of the Chubb Corp acquisition is considered a Corporate cost as these are incurred by the overall company. We determined that this definition of segment income

54

is appropriate and aligns with how the business is managed. As we progress through the integration and refine our processes, we may continue to further refine our segments and segment income measures.

Combined legacy ACE and legacy Chubb results ("As If")

We present financial measures on an "As If" basis on both the current and prior year periods throughout the Management's Discussion and Analysis section exclusive of the impact of the unearned premium reserves intangible amortization and the elimination of the historical policy acquisition costs as a result of purchase accounting related to the Chubb Corp acquisition in order to present the underlying profitability of our insurance business for the entire relevant periods. We believe these measures provide visibility into our results, allow for comparability to our historical results and are consistent with how management evaluates results.  We define our results presented on an "As If" basis as follows:

2016 "As If" results: The combined company results do not include the impact of the unearned premium reserves intangible amortization and the elimination of the historical policy acquisition costs as a result of purchase accounting related to the Chubb Corp acquisition. The combined company results for the nine months endedSeptember 30, 2016 are inclusive of the first 14 days of January 2016 (the Chubb Corp acquisition closed January 14, 2016).

2015 "As If" results: Legacy ACE plus legacy Chubb Corp historical results after accounting policy alignment adjustments, including reclassifying certain legacy Chubb Corp corporate expenses to administrative expenses and redefining legacy Chubb Corp segment underwriting income by allocating the amortization of deferred policy acquisition costs to each segment.  2015 "As If" results exclude purchase accounting adjustments related to the Chubb Corp acquisition.

A reconciliation of "As If" results as defined above is provided under the Non-GAAP Reconciliation section starting on page 81.

Financial Highlights for the Three Months Ended September 30, 2016

• Net income was $1,360 million compared with $528 million in the prior year period.

• Total company and P&C net premiums written of $7.6 billion and $7.0 billion, respectively, up 60.8 percent and 67.0 percent, respectively, reflecting the acquisition of Chubb Corp. P&C net premiums written decreased 4.5 percent, or 3.4 percent in constant dollars, when compared with the prior year period as if legacy ACE and legacy Chubb were one company in 2015 ("As If" basis).

• Since the acquisition of Chubb Corp, we have entered into new reinsurance agreements with third-party reinsurers for certain legacy Chubb Corp business. The purchase of additional merger-related reinsurance adversely impacted total company net premiums written growth by $260 million, of which $200 million relates to personal lines and $60 million relates primarily to commercial P&C lines. The $200 million personal lines reinsurance premium included $128 million from a one-time unearned premium reserve (UPR) transfer which impacted net premiums written in the current quarter only. Excluding the one-time UPR transfer, the annual impact to personal lines of this new treaty is expected to be approximately $280 million.

• Total company net premiums earned increased 62.9 percent, or 64.6 percent in constant dollars, reflecting the acquisition of Chubb Corp. On an "As If" basis, total company net premiums earned decreased 2.7 percent, or 1.6 percent in constant dollars.

• P&C combined ratio was 86.0 percent compared with 85.9 percent in the prior year period. On an “As If” basis, P&C combined ratio was 85.5 percent compared with 85.0 percent in the prior year period. On an "As If" basis, current accident year P&C combined ratio excluding catastrophe losses was 88.4 percent compared with 88.9 percent in the prior year period.

• The P&C expense ratio was 29.0 percent, compared with 27.1 percent in the prior year period. On an "As If" basis, the P&C expense ratio was 28.5 percent, compared with 29.1 percent in the prior year period.

• Total pre-tax and after-tax catastrophe losses were $144 million (2.0 percentage points of the combined ratio) and $107 million, respectively, compared with $72 million (1.7 percentage points of the combined ratio) and $59 million, respectively, in the prior year period. On an "As If" basis, total pre-tax and after-tax catastrophe losses for the prior year period were $101 million (1.4 percentage points of the combined ratio) and $78 million, respectively.

• Total pre-tax and after-tax favorable prior period development was $349 million (4.9 percentage points of the combined ratio) and $252 million, respectively, compared with $210 million pre-tax (5.0 percentage points of the combined ratio) and $180 million after-tax in the prior year period. Favorable prior period reserve development in the quarter is net of a pre-tax environmental liability run-off charge in the company’s Brandywine operation of $52 million. On an "As If" basis, total

55

pre-tax and after-tax favorable prior period development for the prior year period was $389 million (5.3 percentage points of the combined ratio) and $297 million, respectively.

• Net investment income was $739 million which is net of $91 million related to the amortization of the fair value adjustment on acquired invested assets of Chubb Corp. Excluding this amortization, net investment income was $830 million, compared with $549 million last year.

Outlook

Chubb produced net income of $1.4 billion for the three months ended September 30, 2016, reflecting our strong underwriting results. Previously contemplated merger-related underwriting actions taken on select portfolios of business, particularly a greater use of reinsurance, reduced net premium growth in the quarter while improving our risk-reward profile. We expect that the impact from these actions will continue through 2016 and 2017, but at a reduced level. In addition, a competitive insurance market and relatively weak global economic conditions impacted premium revenue in the quarter as we maintained our underwriting discipline. We believe growth will improve as the impact from the underwriting actions dissipates and market conditions improve. In particular, we are building on the potential of our middle market businesses, both domestic and international, with both traditional core package and specialty products. We also believe that we have greater growth potential in our A&H and personal lines businesses. For the large account and upper middle markets, we are combining product and expertise to bring total solutions to clients.

Our integration plans and activities are in good shape. We are ahead of schedule in realized and annualized savings, as indicated in the table below, and we have now increased the total annualized run-rate savings we expect to achieve by the end of 2018 to $800 million, up from our first quarter 2016 estimate of $750 million.

The following table presents expected annualized and realized integration-related savings and integration and merger-related expenses by year:

			Actual		Expected
(in millions of U.S. dollars)	2015		YTD-Q3 2016		2016		2017		2018		Total
Chubb integration-related savings (1)
Annualized savings					$	515	$	740	$	800	$	800
Realized savings			$	202	$	310	$	580	$	760	$	800
Chubb integration and merger-related expenses (2)
One-time integration expenses related to savings	$	22	$	227	$	315	$	121	$	39	$	497
Other one-time merger-related expenses	11		134		210		80		11		312
Total expected integration and merger-related expenses	$	33	$	361	$	525	$	201	$	50	$	809

¹⁾ Realized savings are the portion that is recorded in the financial statements in the current period. Annualized savings are the annualized run rate of the realized savings that will impact future years.

⁽²⁾ Integration expenses related to savings are one-time costs that are directly attributable to the achievement of the annualized savings, including employee severance, third-party consulting fees, and systems integration expenses. Other merger-related expenses are one-time costs directly attributable to the merger, including rebranding, employee retention costs and other professional and legal fees related to the acquisition.

The anticipated integration-related savings and integration and merger-related expenses may not be realized fully, or may take longer to realize than expected or could have other adverse effects that we do not currently foresee. Some of the assumptions that we have made, such as the achievement of operating synergies, may not be realized. Refer to the Risk Factors under Part II, Item 1A on page 107 for additional information.

56

Consolidated Operating Results – Three and Nine Months Ended September 30, 2016 and 2015

	Three Months Ended								Nine Months Ended
	September 30						% Change		September 30						% Change
(in millions of U.S. dollars, except for percentages)	2016			2015			Q-16 vs. Q-15		2016			2015			YTD-16 vs. YTD-15
Net premiums written (1)	$	7,573		$	4,709		60.8	%	$	21,207		$	13,569		56.3	%
Net premiums earned (1)	7,688			4,719			62.9	%	21,690			13,006			66.8	%
Net investment income	739			549			34.7	%	2,121			1,662			27.8	%
Net realized gains (losses)	100			(397		)	NM		(510		)	(360		)	41.7	%
Total revenues	8,527			4,871			75.1	%	23,301			14,308			62.9	%
Losses and loss expenses	4,269			2,643			61.5	%	12,197			7,182			69.8	%
Policy benefits	155			89			74.2	%	427			384			11.2	%
Policy acquisition costs	1,514			771			96.4	%	4,487			2,205			103.5	%
Administrative expenses	772			568			35.9	%	2,373			1,700			39.6	%
Interest expense	152			68			123.5	%	451			207			117.9	%
Other (income) expense	(91		)	12			NM		(92		)	(61		)	50.8	%
Amortization of purchased intangibles	4			51			(92.2	)%	16			136			(88.2	)%
Chubb integration expenses	115			9			NM		361			9			NM
Total expenses	6,890			4,211			63.6	%	20,220			11,762			71.9	%
Income before income tax	1,637			660			148.0	%	3,081			2,546			21.0	%
Income tax expense	277			132			109.8	%	556			395			40.8	%
Net income	$	1,360		$	528		157.2	%	$	2,525		$	2,151		17.4	%
NM – not meaningful

⁽¹⁾  On a constant-dollar basis for the three and nine months endedSeptember 30, 2016, net premiums written increased $2,914 million and $7,982 million, respectively, and net premiums earned increased $3,015 million and $8,992 million, respectively. Amounts are calculated by translating prior period results using the same local currency rates as the comparable current period.

Net premiums written reflect the premiums we retain after purchasing reinsurance protection. Consolidated net premiums written increased$2,864 million and $7,638 million for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the Chubb Corp acquisition, which added about $2.8 billion and $8.1 billion, respectively, of growth to premiums. This increase in premiums was partially offset by the adverse impact of foreign exchange of $50 million and $344 million, respectively. On a constant-dollar basis, as if legacy ACE and legacy Chubb were one company in 2015 and since the beginning of 2016 ("As If" basis), net premiums written decreased$226 million and $625 million for the three and nine months endedSeptember 30, 2016, respectively.

• Net premiums written in our North America Commercial P&C Insurance segment increased$1,677 million and $4,499 million for the three and nine months endedSeptember 30, 2016, respectively. On an "As If" basis, net premiums written declined $76 million and $191 million for the three and nine months ended September 30, 2016, respectively, principally due to merger-related underwriting actions ($75 million and $158 million, respectively), including the purchase of additional reinsurance. Excluding these actions, net premiums written were flat for the quarter and down slightly for the nine months ended September 30, 2016.

• Net premiums written in our North America Personal P&C Insurance segment increased$733 million and $2,155 million for the three and nine months endedSeptember 30, 2016, respectively. On an "As If" basis, net premiums written decreased $199 million and $456 million for the three and nine months endedSeptember 30, 2016, respectively, primarily driven by the purchase of additional reinsurance in the third quarter of 2016 ($200 million) primarily for our homeowners business written in the northeast United States. In addition, we experienced a decline in our Fireman’s Fund high net worth personal lines business for the three and nine months ended September 30, 2016 of $32 million and $296 million, respectively. The decline for the three month period was primarily due to the conversion to Chubb legal entities. The decline for the nine month period was driven by $252 million of a non-recurring unearned premium reserves (UPR) transfer in the prior year as well as the conversion to Chubb legal entities in the

57

current year. Excluding these items, net premiums written were up 3.1 percent and 1.4 percent, respectively, for the three and nine months ended September 30, 2016.

• Net premiums written in our Overseas General Insurance segment increased$356 million and $965 million for the three and nine months endedSeptember 30, 2016, respectively. For the three months ended September 30, 2016, net premiums written decreased$34 million, on an "As If" constant-dollar basis, primarily driven by merger-related underwriting actions ($47 million), including the purchase of additional reinsurance. Excluding these actions, net premiums written were relatively flat as growth in personal lines in Asia and Europe was offset by declines in commercial property and casualty lines (P&C) in Latin America, reflecting economic conditions. For the nine months endedSeptember 30, 2016, net premiums written increased$14 million on a constant dollar "As If" basis, primarily driven by growth in personal and A&H lines.

• Net premiums written in our North America Agricultural Insurance segment increased$112 million and $84 million for the three and nine months endedSeptember 30, 2016, respectively, due to higher premium retention as a result of the premium-sharing formulas with the U.S. government and lower cessions under existing third-party proportional reinsurance programs. Growth for the nine months ended September 30, 2016 was partially offset by lower premium retention as a result of the government's crop insurance profit and loss calculation formulas related to the 2015 crop year in the first quarter. 

• Net premiums written in our Life Insurance segment increased $40 million and $92 million for the three and nine months endedSeptember 30, 2016, respectively, and increased $17 million and $21 million, respectively, on an "As If" basis.  Growth in our international life operations and in our Combined Insurance Supplemental A&H program business was partially offset by the adverse effect of foreign exchange. Our life reinsurance business continues to decline as there is no new life reinsurance business currently being written.

• Net premiums written in our Global Reinsurance segment decreased $54 million and $157 million for the three and nine months endedSeptember 30, 2016, respectively, and declined $54 million and $164 million, respectively, on an "As If" basis, as we maintained underwriting discipline in an environment of declining rates and increasing competition. In addition, the decline in premiums reflects increased cessions of $6 million and $17 million for the three and nine months endedSeptember 30, 2016, respectively, due to the purchase of additional property catastrophe retrocession contracts in 2016.

58

The following tables present a breakdown of consolidated net premiums written by line of business for the periods indicated:

									Three Months Ended
									September 30
(in millions of U.S. dollars, except for percentages)	2016		2015		% Change Q-16 vs. Q-15		As If 2015		C$ (1) As If Q-15		% Change C$ (1) Q-16 vs. As If Q-15
Commercial multiple peril (2)	$	228	$	—	NM		$	247	$	247	(7.7	)%
Commercial casualty	955		595		60.5	%	932		930		2.7	%
Workers' compensation	471		178		164.6	%	493		493		(4.5	)%
Professional liability	958		398		140.7	%	1,015		1,005		(4.7	)%
Surety	158		86		83.7	%	161		156		1.3	%
Property and other short-tail lines	905		635		42.5	%	983		961		(5.8	)%
International other casualty	239		177		35.0	%	235		226		5.8	%
Total Commercial P&C	3,914		2,069		89.2	%	4,066		4,018		(2.6	)%
Agriculture	849		737		15.2	%	737		737		15.2	%
Personal automobile	358		223		60.5	%	358		348		2.9	%
Personal homeowners	680		180		277.8	%	874		874		(22.2	)%
Personal other	383		188		103.7	%	404		388		(1.3	)%
Total Personal lines	1,421		591		140.4	%	1,636		1,610		(11.7	)%
Total Property and Casualty lines	6,184		3,397		82.0	%	6,439		6,365		(2.8	)%
Other Lines
Global A&H (3)	990		889		11.4	%	1,005		994		(0.4	)%
Reinsurance	131		185		(29.4	)%	185		182		(28.5	)%
Life	268		238		12.6	%	261		258		3.9	%
Total consolidated	$	7,573	$	4,709	60.8	%	$	7,890	$	7,799	(2.9	)%

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

⁽²⁾  Commercial multiple peril represents retail package business (property and general liability).

⁽³⁾  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 the Global A&H line item above.

Total commercial P&C increased $1,845 million (89.2 percent) for the three months ended September 30, 2016, compared to the prior year period, primarily reflecting the Chubb Corp acquisition.  On a constant-dollar “As If” basis, total commercial P&C premiums declined $104 million (2.6 percent), primarily driven by merger-related underwriting actions ($104 million), including the purchase of additional reinsurance for the three months ended September 30, 2016.

Total personal lines increased $830 million (140.4 percent) for the three months ended September 30, 2016, compared to the prior year period, primarily reflecting the Chubb Corp acquisition.  On a constant-dollar “As If” basis, total personal lines growth declined $189 million (11.7 percent), primarily driven by the purchase of additional reinsurance and other merger-related underwriting actions in the third quarter of 2016 ($204 million), primarily for our homeowners business written in the northeast United States. 

Global A&H lines increased $101 million (11.4 percent) for the three months ended September 30, 2016 compared to the prior year period, primarily reflecting the Chubb Corp acquisition. On a constant-dollar "As If" basis, Global A&H lines decreased $4 million (0.4 percent) primarily reflecting merger-related underwriting actions ($14 million).

59

Reinsurance lines decreased $54 million (29.4 percent) for the three months ended September 30, 2016, or $51 million (28.5 percent) on a constant dollar "As If" basis, as we maintained underwriting discipline in an environment of declining rates, and due to increased cessions reflecting the purchase of additional property catastrophe retrocession contracts in 2016 ($6 million).

Net premiums earned for short-duration contracts, typically P&C contracts, generally reflect the portion of net premiums written that were 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. Net premiums earned increased $2,969 million and $8,684 million for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the Chubb Corp acquisition which added about $3.0 billion and $8.9 billion, respectively, of growth to premiums partially offset by the adverse impact of foreign currency of $46 million and $308 million, respectively. On a constant-dollar basis, net premiums earned increased $3,015 million and $8,992 million, for the three and nine months endedSeptember 30, 2016, respectively.

On an "As If" constant-dollar basis, net premiums earned decreased$123 million for the three months ended September 30, 2016, primarily in our North America Personal P&C Insurance, North America Commercial P&C Insurance, and Global Reinsurance segments due to the same factors driving the decrease in net premiums written as described above. Net premiums earned in our North America Agricultural Insurance segment increased due to the same factors driving the increase in net premiums written, as described above.

On an "As If" constant-dollar basis, net premiums earned increased$102 million, for the nine months endedSeptember 30, 2016, reflecting the earning in of prior year premium growth.

In evaluating our segments excluding Life, we use the P&C combined ratio, the loss and loss expense ratio (including the impact of realized gains and losses on crop derivatives for the North America Agricultural Insurance segment), the policy acquisition cost ratio, and the administrative expense ratio. We calculate these ratios by dividing the respective expense amounts by net premiums earned. We do not calculate these ratios for the Life segment as we do not use these measures to monitor or manage that segment. The P&C combined ratio is determined by adding the loss and loss expense ratio, the policy acquisition cost ratio, and the administrative expense ratio. A P&C combined ratio under 100 percent indicates underwriting income, and a combined ratio exceeding 100 percent indicates underwriting loss.

The following table presents the components of the P&C combined ratio. A reconciliation of the P&C combined ratio to the GAAP combined ratio is provided under the Non-GAAP Reconciliation section starting on page 81.

	Three Months Ended				Nine Months Ended
	September 30				September 30
	2016		2015		2016		2015
Loss and loss expense ratio	57.0	%	58.8	%	58.0	%	58.3	%
Policy acquisition cost ratio	19.3	%	15.4	%	20.3	%	16.1	%
Administrative expense ratio	9.7	%	11.7	%	10.7	%	12.8	%
P&C combined ratio	86.0	%	85.9	%	89.0	%	87.2	%

The following table presents the pre-tax catastrophe losses, excluding reinstatement premiums, and pre-tax favorable prior period development:

	Three Months Ended September 30						Nine Months Ended September 30
					As If						As If
(in millions of U.S dollars)	2016		2015		2015		2016		2015		2016		2015
Catastrophe losses, pre-tax	$	144	$	72	$	101	$	798	$	247	$	798	$	690
Favorable prior period development, pre-tax	$	349	$	210	$	389	$	897	$	446	$	897	$	917

Catastrophe losses for the nine months endedSeptember 30, 2016, were primarily related to severe weather-related events in the U.S. and Europe, a wildfire in Canada, and an earthquake in Ecuador. Catastrophe losses in the prior year periods were primarily related to severe weather-related events in the U.S. and Asia, a chemical plant explosion in Tianjin, China, a hailstorm in Australia, and flooding and an earthquake in Chile.

60

Prior period development 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.

The following table presents the impact of catastrophe losses and related reinstatement premiums and prior period reserve development on our consolidated loss and loss expense ratio. The loss ratio numerator includes losses and loss expenses adjusted to exclude catastrophe losses and PPD. The loss ratio denominator includes Net premiums earned adjusted to exclude the amount of reinstatement premiums (expensed) collected. In periods where there are adjustments on loss sensitive policies, these adjustments are excluded from PPD and net earned premiums when calculating this ratio. We believe that excluding the impact of catastrophe losses and PPD provides a better evaluation of our underwriting performance and enhances the understanding of the trends in our property & casualty business that may be obscured by these items.

	Three Months Ended				Nine Months Ended
	September 30				September 30
	2016		2015		2016		2015
Loss and loss expense ratio	57.0	%	58.8	%	58.0	%	58.3	%
Catastrophe losses and related reinstatement premiums	(2.0	)%	(1.7	)%	(3.9	)%	(2.1	)%
Prior period development	5.0	%	5.1	%	4.6	%	3.9	%
Loss and loss expense ratio, adjusted	60.0	%	62.2	%	58.7	%	60.1	%

The adjusted loss and loss expense ratio decreased2.2 percentage points and 1.4 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the net favorable impact of the Chubb Corp acquisition which experienced a relatively lower loss ratio in our North America P&C businesses but experienced a higher loss ratio in our international business. The current periods also included claims handling expense savings realized in connection with the integration of Chubb Corp of $17 million and $35 million for the three and nine months endedSeptember 30, 2016, respectively.

On an "As-If" basis, the adjusted loss and loss expense ratio increased0.2 percentage points for both the three and nine months endedSeptember 30, 2016, primarily due to a shift in the mix of business to products which experienced a higher loss ratio, partially offset by integration related claims handling expense savings as noted above. The increase for the nine months endedSeptember 30, 2016 was also impacted by lower short-tail losses in the prior year.

Policy acquisition costs consist of commissions, premium taxes, and certain underwriting costs directly related to the successful acquisition of a new or renewal insurance contract. Our policy acquisition cost ratio increased3.9 percentage points and 4.2 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the normal impact of initial year purchase accounting adjustments related to the Chubb Corp acquisition and the prior year acquisition of Fireman's Fund. The Chubb Corp purchase accounting includes a fair value adjustment related to the unearned premiums at the date of the purchase. This adjustment is then amortized into policy acquisition costs over the remaining coverage period. Partially offsetting this is a favorable impact related to the recognition of the acquired unearned premiums without having to recognize the associated policy acquisition costs. The net impact of these purchase accounting adjustments was an increase to policy acquisition costs of $39 million (0.5 percentage points) and $169 million (0.8 percentage points) for the three and nine months endedSeptember 30, 2016, respectively. The prior year Fireman's Fund purchase accounting included the favorable impact related to the recognition of the acquired unearned premiums without having to recognize the associated policy acquisition costs of $33 million (0.8 percentage points) and $81 million (0.7 percentage points) reduction to the prior year, respectively. In addition, during 2016, we determined that certain underwriting costs that are directly attributable to the successful acquisition of business previously classified as administrative expenses were more appropriately classified as policy acquisition costs. This resulted in a $73 million (1.0 percentage points) and $217 million (1.1 percentage points) increase to policy acquisition costs, with an offsetting decrease to administrative expenses for the three and nine months endedSeptember 30, 2016, respectively.

On an "As If" basis, the policy acquisition cost ratio increased 0.1 percentage points and 0.3 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the impact of the Fireman’s Fund acquisition in 2015 which favorably impacted both of the prior year ratios by 0.4 percentage points.

Our administrative expense ratio decreased2.0 percentage points and 2.1 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the $73 million (1.0 percentage points) and $217 million (1.1

61

percentage points) reclassification of underwriting costs that are directly attributable to the successful acquisition of business, as discussed above, and cost savings realized as a result of the Chubb Corp acquisition of $70 million (1.0 percentage point) and $144 million (0.7 percentage points), respectively.

On an "As If" basis, our administrative expense ratio decreased0.7 percentage points and 0.5 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to cost savings realized as a result of the Chubb Corp acquisition as discussed above, partially offset by increased spending to support growth initiatives.

Policy benefits include gains and losses for changes in liabilities associated with our separate account assets that do not qualify for separate account reporting under GAAP.  Certain of our long duration contracts are supported by assets that do not qualify for separate account reporting under GAAP.  These assets are classified as trading securities and reported in Other investments and the offsetting liabilities are reported in Future policy benefits in the consolidated balance sheets. Changes in fair value of separate account assets that do not qualify for separate account reporting under GAAP are reported in Other income (expense) and the offsetting movements in the liabilities are included in the Policy benefits in the consolidated statements of operations.

For the three months ended September 30, 2016, Policy benefits were $155 million, which included $22 million of separate account liabilities losses, compared to $89 million in the prior year, which included gains of $49 million related to separate account liabilities.  The offsetting movements of these liabilities are recorded in Other income (expense) on the consolidated statement of operations.  Excluding the separate account gains and losses, Policy benefits were $133 million and $138 million for the three months ended September 30, 2016 and 2015, respectively. 

For the nine months ended September 30, 2016, Policy benefits were $427 million, which included $22 million of separate account liabilities losses, compared to $384 million in the prior year, which included a gain of $32 million related to separate account liabilities.  Excluding the separate account gains and losses, Policy benefits were $405 million and $416 million for the nine months ended September 30, 2016 and 2015, respectively.

The following table presents consolidated integration related savings realized by segment and income statement line item for the three and nine months endedSeptember 30, 2016:

	North America Commercial P&C Insurance		North America Personal P&C Insurance		Overseas General Insurance		Corporate		Consolidated
For the Three Months Ended
September 30, 2016
(in millions of U.S. dollars)
Losses and loss expenses	$	10	$	4	$	3	$	—	$	17
Policy acquisition costs	7		3		4		—		14
Administrative expenses	27		10		23		10		70
Net investment income	—		—		—		1		1
Total	$	44	$	17	$	30	$	11	$	102
For the Nine Months Ended
September 30, 2016
Losses and loss expenses	$	19	$	10	$	6	$	—	$	35
Policy acquisition costs	11		3		6		—		20
Administrative expenses	59		25		40		20		144
Net investment income	1		1		—		1		3
Total	$	90	$	39	$	52	$	21	$	202

62

Our effective income tax rate, which we calculate as income tax expense divided by income before income tax, is dependent upon the mix of earnings from different jurisdictions with various tax rates. A change in the geographic mix of earnings would change the effective income tax rate.

For the three months ended September 30, 2016 and 2015, our effective income tax rate was 17.0 percent and 20.0 percent, respectively.  The decrease in the effective income tax rate was primarily due to a higher percentage of realized gains being generated in lower taxing jurisdictions in the current year compared to realized losses in lower taxing jurisdictions in the prior year. 

For the nine months ended September 30, 2016 and 2015, our effective income tax rate was 18.1 percent and 15.5 percent, respectively. The increase in the effective income tax rate was primarily due to a higher percentage of realized losses being generated in lower taxing jurisdictions and a higher percentage of operating profits being generated in higher taxing jurisdictions, largely driven by earnings generated as a result of the Chubb Corp acquisition.

The lower tax rates attributed to our foreign operations primarily reflect the lower corporate tax rates that prevail outside of the U.S. During the three and nine months ended September 30, 2016, approximately 55 percent and 51 percent of our total pre-tax income was tax effected based on these lower rates compared with 57 percent and 63 percent for the three and nine months ended September 30, 2015. The significant lower taxing jurisdictions outside of the U.S. include the U.K., Switzerland, and Bermuda with effective federal income tax rates in those countries of 20.0 percent, 7.83 percent, and 0.0 percent, respectively. In addition, as part of the Chubb Corp acquisition, we have an intercompany loan that decreased our income tax expense by $22 million and $64 million for the three and nine months ended September 30, 2016, respectively.

Prior Period Development

The following tables summarize (favorable) and adverse prior period development (PPD) by segment. Long-tail lines include lines such as workers' compensation, general liability, and professional liability; while short-tail lines include lines such as most property lines, energy, personal accident, aviation, marine (including associated liability-related exposures), and agriculture. 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 and short-tail business for each segment comprises numerous favorable and adverse movements across a number of lines and accident years, none of which is significant individually or in the aggregate.

	Three Months Ended September 30									Nine Months Ended September 30
(in millions of U.S. dollars)	Long-tail			Short-tail			Total			Long-tail			Short-tail			Total
2016
North America Commercial P&C Insurance	$	(145	)	$	(42	)	$	(187	)	$	(454	)	$	(79	)	$	(533	)
North America Personal P&C Insurance	20			18			38			16			4			20
North America Agricultural Insurance	—			(11		)	(11		)	—			(52		)	(52		)
Overseas General Insurance	(180		)	(43		)	(223		)	(181		)	(157		)	(338		)
Global Reinsurance	(28		)	—			(28		)	(77		)	(1		)	(78		)
Corporate	62			—			62			84			—			84
Total	$	(271	)	$	(78	)	$	(349	)	$	(612	)	$	(285	)	$	(897	)
2015
North America Commercial P&C Insurance	$	(41	)	$	(18	)	$	(59	)	$	(127	)	$	(58	)	$	(185	)
North America Personal P&C Insurance	10			15			25			10			15			25
North America Agricultural Insurance	—			(5		)	(5		)	—			(38		)	(38		)
Overseas General Insurance	(149		)	(28		)	(177		)	(148		)	(121		)	(269		)
Global Reinsurance	(66		)	(12		)	(78		)	(106		)	(13		)	(119		)
Corporate	84			—			84			140			—			140
Total	$	(162	)	$	(48	)	$	(210	)	$	(231	)	$	(215	)	$	(446	)

63

North America Commercial P&C Insurance

2016

For the three months ended September 30, 2016, net favorable PPD was $187 million, which was the net result of several underlying favorable and adverse movements, driven by the following principal changes:

• Net favorable development of $145 million in long-tail business, primarily from favorable development of $127 million in our commercial excess and umbrella portfolios, impacting the 2010 and prior accident years, driven by continued lower than expected reported loss activity and an increase in weighting towards experience-based methods; and

• Net favorable development of $42 million in short-tail business, primarily from net favorable development of $43 million in our property and inland marine portfolios, primarily impacting the 2014 and 2015 accident years, resulting from lower than expected loss emergence.

For the nine months ended September 30, 2016, net favorable PPD was $533 million, which was the net result of several underlying favorable and adverse movements, driven by the following principal changes:

• Net favorable development of $454 million in long-tail business, primarily from:

• Favorable development of $272 million in our commercial excess and umbrella portfolios, primarily in accident years 2010 and prior, driven by lower than expected reported loss activity and an increase in weighting towards experience-based methods; in general, the severity of claims has been less than expected;

• Net favorable development of $134 million in our workers’ compensation lines with favorable development of $40 million in the 2015 accident year related to our annual assessment of multi-claimant events including industrial accidents. Favorable development of $91 million driven by accident years 2012 and prior was principally due to lower than expected loss experience and revision to the basis for selecting development patterns used in our loss projection methods;

• Favorable development of $65 million in our professional Errors & Omission (E&O) portfolios, primarily impacting the 2012 and prior accident years and arising from both lower than expected reported loss activity and re-assessments of remaining claim-specific liabilities for the older accident years;

• Net favorable development of $23 million in our primary general and package liability lines from favorable development due to lower than expected reported and paid activity, principally in accident years 2007 through 2014; and

• Net adverse development of $40 million, including $16 million and $10 million in our high deductible general liability excess and automobile lines, respectively.

• Net favorable development of $79 million in short-tail business, primarily from net favorable development of $56 million in our property and inland marine portfolios, primarily impacting the 2014 and 2015 accident years, resulting from lower than expected loss emergence.

2015

For the three months ended September 30, 2015, net favorable PPD was $59 million, which was the net result of several underlying favorable and adverse movements, none of which were significant individually or in the aggregate.

For the nine months ended September 30, 2015, net favorable PPD was $185 million, which was the net result of several underlying favorable and adverse movements, driven by the following principal changes:

• Net favorable development of $127 million in long-tail business, primarily from:

• Favorable development of $58 million, including $32 million in our auto liability excess lines and $26 million in our general liability product lines primarily impacting the 2010 accident year, resulting from lower than expected loss emergence and an increase in weighting applied to experience-based methods;

64

• Net favorable development of $22 million in our workers’ compensation lines with favorable development of $52 million in the 2014 accident year related to our annual assessment of multi-claimant events including industrial accidents. Consistent with prior years, we reviewed these potential exposures after the close of the accident year to allow for late reporting or identification of significant losses. Adverse development of $30 million impacting the 2009 and prior accident years was due to a combination of claim-specific deteriorations and higher than expected loss emergence. There was additional adverse development in the 2014 accident year due to revised account-level estimates, which proved to be higher than our original aggregate expectations; and

• Net favorable development of $47 million, due to several underlying favorable and adverse movements, none of which were significant individually or in the aggregate.

• Net favorable development of $58 million in short-tail business, including favorable development of $24 million in our surety business due to lower than expected claims emergence primarily in the 2013 accident year.

North America Personal P&C Insurance

2016

For the three months ended September 30, 2016, net adverse PPD was $38 million, including $28 million adverse development in our homeowners and umbrella lines due to higher than expected loss emergence. Average loss severities were higher than expected, and to a lesser degree, reinsurance and other recoveries were lower than expected.

For the nine months ended September 30, 2016, net adverse PPD was $20 million, due primarily to higher than expected loss emergence in our homeowners and umbrella lines as described above.

2015

For both the three and nine months ended September 30, 2015, net adverse PPD was $25 million, which was the net result of several underlying favorable and adverse movements, none of which were significant individually or in the aggregate.

North America Agricultural Insurance

2016

For the three months ended September 30, 2016, net favorable PPD was $11 million across a number of accident years, none of which were significant individually or in the aggregate.

For the nine months ended September 30, 2016, net favorable PPD was $52 million. Actual claim development in the first quarter of 2016 for the 2015 crop year for the Multiple Peril Crop Insurance (MPCI) business was favorable due to better than expected crop yield results in certain states at year-end 2015.

2015

For the three months ended September 30, 2015, net favorable PPD was $5 million across a number of accident years, none of which were significant individually or in the aggregate.

For the nine months ended September 30, 2015, net favorable PPD was $38 million. Actual claim development in the first quarter of 2015 for the 2014 crop year for the MPCI business was favorable due to better than expected crop yield results in certain states at year-end 2014. 

Overseas General Insurance

2016

For the three months ended September 30, 2016, net favorable PPD was $223 million, which was the net result of several underlying favorable and adverse movements, driven by the following principal changes:

• Favorable development of $180 million in long-tail business, primarily from:

• Favorable development of $155 million, primarily in casualty and financial lines, with favorable development of $252 million in accident years 2012 and prior, resulting from lower than expected loss emergence, and adverse development of $97 million in accident years 2013 to 2015, primarily due to large loss experience in our Directors and Officers (D&O) portfolio in Asia and financial lines in Europe; and

65

• Favorable development of $25 million on an individual legacy liability case reserve take-down. This release follows a legal analysis completed in the third quarter of 2016, based on court opinion in the quarter and discussions with defense counsel, which concluded that these reserves were no longer required.

• Favorable development of $43 million in short-tail business, primarily from favorable development of $28 million in aviation lines, impacting accident years 2012 and prior due to lower than expected loss emergence and case-specific reserve reductions.

For the nine months ended September 30, 2016, net favorable PPD was $338 million, which was the net result of several underlying favorable and adverse movements, driven by the following principal changes:

• Net favorable development of $181 million in long-tail business due primarily to the same factors experienced for the three months ended September 30, 2016.

• Net favorable development of $157 million in short-tail business primarily from:

• Favorable development of $66 million in property (including technical lines), primarily from favorable Continental Europe loss emergence in accident years 2012 through 2014;

• Favorable development of $35 million in energy lines, primarily from a claims review of catastrophe impacts on underwriting years 2004 through 2008, as well as favorable loss emergence in accident years 2010 through 2014, primarily in offshore where experience on multi-year construction accounts has been better than expected;

• Favorable development of $28 million in aviation lines, due to the same factors experienced for the three months ended September 30, 2016 as described above; and

• Net favorable development of $28 million, due to several underlying favorable and adverse movements, none of which were significant individually or in the aggregate.

2015

For the three months ended September 30, 2015, net favorable PPD was $177 million, which was the net result of several underlying favorable and adverse movements, driven by the following principal changes:

• Net favorable development of $149 million in long-tail business, primarily from:

• Net favorable development of $119 million, primarily in casualty and financial lines with favorable development of $150 million in accident years 2011 and prior, resulting from lower than expected loss emergence, and adverse development of $31 million in accident years 2012 to 2014, primarily due to large loss experience in the U.K. and Europe; and

• Favorable development of $26 million on an individual legacy liability case reserve take-down. This release follows a legal analysis completed in the third quarter of 2015, based on court opinion in the quarter and discussions with defense counsel, which concluded that these reserves were no longer required.

• Net favorable development of $28 million in short-tail business, primarily in aviation lines. Favorable development in accident years 2011 and prior was due to lower than expected loss emergence, while adverse development in accident years 2013 and 2014 was from adverse experience in airlines and large losses in airport liability lines.

For the nine months ended September 30, 2015, net favorable PPD was $269 million, which was the net result of several underlying favorable and adverse movements, driven by the following principal changes:

• Net favorable development of $148 million in long-tail business due primarily to the same factors experienced for the three months ended September 30, 2015 as described above.

66

• Favorable development of $121 million in short-tail lines, primarily from:

• Favorable development of $73 million primarily in property and marine lines. Unfavorable large loss experience in accident year 2014 led to a $19 million increase. Favorable development on specific claims, additional credibility assigned to accident years 2013 and prior favorable indications led to a $91 million reduction;

• Favorable development of $28 million, primarily in aviation lines, due to the same factors experienced for the three months ended September 30, 2015 as described above; and

• Favorable development of $20 million in consumer business mainly in Latin America and Asia Pacific, resulting from favorable development and additional credibility assigned to accident years 2012 and 2013.

Global Reinsurance

2016

For the three months ended September 30, 2016, net favorable PPD was $28 million, primarily from net favorable development of $24 million in professional liability lines primarily impacting treaty years 2011 and prior due to lower than expected loss emergence.

For the nine months ended September 30, 2016, net favorable PPD was $78 million, which was driven by the following principal changes:

• Net favorable development of $41 million in casualty lines primarily impacting treaty years 2011 and prior, principally resulting from lower than expected loss emergence; and

• Net favorable development of $30 million in professional liability lines due to the same factors experienced for the three months ended September 30, 2016, as described above.

2015

For the three months ended September 30, 2015, net favorable PPD was $78 million, which includes favorable development of $54 million, comprised of $42 million in long-tail lines and $12 million in short-tail lines, on an individual legacy liability case reserve take-down. This release follows a legal analysis completed in the third quarter of 2015, based on court opinion in the quarter and discussions with defense counsel, which concluded that these reserves were no longer required.

For the nine months ended September 30, 2015, net favorable PPD was $119 million, which was the result of favorable development of $54 million on an individual legacy liability case reserve take-down as described above and favorable development of $23 million in casualty lines primarily impacting treaty years 2009 and prior principally resulting from lower than expected loss emergence combined with an increase in weighting to experience-based methods.

Corporate

2016

For the three months ended September 30, 2016, adverse development was $62 million, driven principally by development of $52 million in environmental liabilities and $10 million for unallocated loss adjustment expenses, impacting the 1995 and prior accident years. The development in environmental liabilities was due to case specific settlements and both higher than expected remediation expense and defense costs. These higher costs impacted both large modeled accounts as well as smaller accounts.

For the nine months ended September 30, 2016, net adverse PPD was $84 million, driven principally by development of environmental liabilities as described above and $27 million of unallocated loss adjustment expenses paid and incurred on our run-off lines.

2015

For the three months ended September 30, 2015, adverse development was $84 million, driven principally by development in Brandywine, including $76 million for environmental liabilities and $7 million for unallocated loss adjustment expenses, impacting the 1995 and prior accident years. Development in environmental liabilities was due to case specific settlements and both higher than expected remediation expense and defense costs. These higher costs impacted both large modeled accounts as well as small accounts.

67

For the nine months ended September 30, 2015, net adverse development was $140 million, driven principally by development of $139 million in our Brandywine environmental and run-off portfolios, including $76 million for environmental liabilities and $41 million primarily in general and products liability lines, and $22 million of unallocated loss adjustment expenses, impacting the 1995 and prior accident years. Development in environmental liabilities was due to the same factors experienced for the three months ended September 30, 2015 as described above. Run-off lines development was primarily due to higher than expected loss activity.

Segment Operating Results – Three and Nine Months Ended September 30, 2016 and 2015

Effective the first quarter of 2016, reflecting our significantly larger and expanded operations, subsequent to the Chubb Corp acquisition, we implemented organizational changes that resulted in new business segments. 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. We have also redefined Corporate to include all run-off asbestos and environmental (A&E) exposures, the results of run-off Brandywine business, the results of Westchester specialty operations for 1996 and prior years and certain other run-off exposures. Prior period amounts contained in this report have been adjusted to conform to the new segment presentation.

North America Commercial P&C Insurance

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

	Three Months Ended								Nine Months Ended
	September 30						% Change		September 30						% Change
(in millions of U.S. dollars, except for percentages)	2016			2015			Q-16 vs. Q-15		2016			2015			YTD-16 vs. YTD-15
Net premiums written	$	3,110		$	1,433		117.1	%	$	8,657		$	4,158		108.2	%
Net premiums earned	3,086			1,410			119.1	%	9,130			4,209			117.0	%
Losses and loss expenses	1,863			913			104.1	%	5,581			2,744			103.4	%
Policy acquisition costs	522			142			267.6	%	1,549			403			284.4	%
Administrative expenses	275			154			78.6	%	840			459			83.0	%
Underwriting income	426			201			111.9	%	1,160			603			92.4	%
Net investment income	477			260			83.5	%	1,371			780			75.8	%
Other (income) expense	3			(3		)	NM		(6		)	(5		)	20.0	%
Segment income	$	900		$	464		94.0	%	$	2,537		$	1,388		82.8	%
Loss and loss expense ratio	60.4		%	64.7		%			61.1		%	65.2		%
Policy acquisition cost ratio	16.9		%	10.1		%			17.0		%	9.6		%
Administrative expense ratio	8.9		%	11.0		%			9.2		%	10.9		%
Combined ratio	86.2		%	85.8		%			87.3		%	85.7		%

Net premiums written increased$1,677 million and $4,499 million for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the Chubb Corp acquisition which added about $1.6 billion and $4.4 billion in premiums to this segment, respectively.

For the three months ended September 30, 2016 on an "As If" basis, net premiums written declined $76 million, principally due to merger-related underwriting actions ($75 million), including the purchase of additional reinsurance. Excluding these actions, net premiums written were flat as the decline in our Commercial Insurance business was offset by growth in our Major Accounts and Wholesale businesses. The decline in Commercial Insurance was principally from lower new business written, reflecting competitive market conditions in the commercial multiple peril and property lines. The slight increase in Major

68

Accounts was principally in our primary risk management business where we have been able to differentiate our offerings and global service platform. The increase in our Wholesale business was primarily in our small commercial business.

For the nine months ended September 30, 2016, on an "As If" basis, net premiums written declined $191 million, principally reflecting merger-related underwriting actions ($158 million), including the purchase of additional reinsurance which decreased premiums and lower new business written, driven by competitive market conditions and rate declines. Partially offsetting the decline was growth in our global risk management and workers' compensation lines reflecting new business and strong renewal retention.

Net premiums earned increased$1,676 million and $4,921 million for the three and nine months ended September 30, 2016, respectively, primarily due to the Chubb Corp acquisition which added $1.7 billion and $4.9 billion of growth in earned premiums, respectively. On an "As If" basis, net premiums earned decreased $70 million and $6 million, respectively, primarily due to thesame factors driving the decrease in net premiums written as described above, partially offset by the earning in of prior year premium growth.

The following table presents the pre-tax catastrophe losses and pre-tax favorable prior period development:

	Three Months Ended September 30						Nine Months Ended September 30
					As If						As If
(in millions of U.S. dollars)	2016		2015		2015		2016		2015		2016		2015
Catastrophe losses, pre-tax	$	90	$	10	$	18	$	331	$	60	$	331	$	184
Favorable prior period development, pre-tax	$	187	$	59	$	202	$	533	$	185	$	533	$	563

Catastrophe losses through September 30, 2016 were primarily from severe weather-related events in the U.S. and a wildfire in Canada. Catastrophe losses through September 30, 2015, were primarily from severe weather-related events in the U.S. and the civil unrest in Baltimore, Maryland.

The following table presents the impact of catastrophe losses and related reinstatement premiums and prior period reserve development on our loss and loss expense ratio:

	Three Months Ended				Nine Months Ended
	September 30				September 30
	2016		2015		2016		2015
Loss and loss expense ratio	60.4	%	64.7	%	61.1	%	65.2	%
Catastrophe losses and related reinstatement premiums	(2.8	)%	(0.7	)%	(3.6	)%	(1.4	)%
Prior period development	6.2	%	4.3	%	6.0	%	4.5	%
Loss and loss expense ratio, adjusted	63.8	%	68.3	%	63.5	%	68.3	%

The adjusted loss and loss expense ratio decreased4.5 percentage points and 4.8 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the addition of the Chubb Corp business, which carried a lower loss ratio. On an "As If" basis, the adjusted loss and loss expense ratio increased 0.9 percentage points and 0.4 percentage points for the three and nine months ended September 30, 2016, respectively, primarily due to lower non-catastrophe losses in the prior year periods, partially offset by integration related claims handling expense savings realized in connection with the integration of Chubb Corp of $10 million (0.3 percentage points) and $19 million (0.2 percentage points), respectively.

The policy acquisition cost ratio increased6.8 percentage points and 7.4 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the addition of the Chubb Corp business which carried a higher acquisition cost ratio and due to the normal impact of initial year purchase accounting adjustments related to the Chubb Corp acquisition. In addition, during 2016, we determined that certain underwriting costs that are directly attributable to the successful acquisition of business previously classified as administrative expenses were more appropriately classified as policy acquisition costs. Excluding these items, the policy acquisition cost ratio was relatively flat for both the three and nine months ended September 30, 2016.

The normal impact of initial year purchase accounting adjustments related to the Chubb Corp acquisition includes a fair value adjustment related to the unearned premiums at the date of the purchase. This adjustment is then amortized into policy

69

acquisition costs. Partially offsetting this is a favorable impact related to the recognition of the acquired unearned premiums without having to recognize the associated policy acquisition costs. The net impact of these purchase accounting adjustments was an increase to policy acquisition costs of $27 million (0.9 percentage points) and $119 million (1.3 percentage points) for the three and nine months ended September 30, 2016, respectively. In addition, reclassification described above resulted in a $32 million (1.0 percentage point) and $95 million (1.0 percentage point) increase to policy acquisition costs for the three and nine months endedSeptember 30, 2016, respectively, with an offsetting decrease to administrative expenses.

On an "As If" basis, which excludes purchase accounting adjustments, the policy acquisition cost ratio decreased by 0.3 percentage points and 0.2 percentage points for the three and nine months endedSeptember 30, 2016.

The administrative expense ratio decreased by 2.1percentage points and 1.7 percentage points for the three and nine months endedSeptember 30, 2016, primarily due to the $32 million and $95 million reclassification, respectively, noted above which decreased the administrative expense ratio by 1.0 percentage point for each period, and the inclusion of the Chubb Corp businesses which carried a lower administrative expense ratio.

On an "As If" basis, the administrative expense ratio decreased 0.3 percentage points and 0.1 percentage points for the three and nine months endedSeptember 30, 2016, as cost savings realized of $27 million (0.9 percentage points) and $59 million (0.6 percentage points), respectively, were partially offset by increased spending to support growth.

North America Personal P&C Insurance

The North America Personal P&C Insurance segment is the business written by the North America Personal Risk Services, which comprises Chubb high net worth personal lines business and ACE Private Risk Services, which includes operations in the U.S. and Canada.

	Three Months Ended								Nine Months Ended
	September 30						% Change		September 30						% Change
(in millions of U.S. dollars, except for percentages)	2016			2015			Q-16 vs. Q-15		2016			2015			YTD-16 vs. YTD-15
Net premiums written	$	1,011		$	278		263.4	%	$	3,113		$	958		225.0	%
Net premiums earned	1,081			272			296.3	%	3,245			687			372.1	%
Losses and loss expenses	594			179			231.8	%	1,916			446			329.6	%
Policy acquisition costs	229			13			NM		747			43			NM
Administrative expenses	89			36			147.2	%	275			89			209.0	%
Underwriting income	169			44			284.1	%	307			109			181.7	%
Net investment income	53			7			NM		155			19			NM
Other (income) expense	2			1			100.0	%	6			1			NM
Amortization of purchased intangibles	4			31			(87.1	)%	16			63			(74.6	)%
Segment income	$	216		$	19		NM		$	440		$	64		NM
Loss and loss expense ratio	54.9		%	65.8		%			59.1		%	64.9		%
Policy acquisition cost ratio	21.2		%	4.9		%			23.0		%	6.3		%
Administrative expense ratio	8.3		%	13.0		%			8.4		%	12.9		%
Combined ratio	84.4		%	83.7		%			90.5		%	84.1		%
NM – not meaningful

Net premiums written increased$733 million and $2,155 million for the three and nine months endedSeptember 30, 2016, respectively primarily due to the Chubb Corp acquisition which added about $800 million and $2.5 billion in premiums to this segment, respectively.

For the three and nine months ended September 30, 2016, on an "As If" basis, net premiums written decreased $199 million and $456 million, respectively, primarily driven by the purchase of additional reinsurance in the third quarter 2016 ($200 million), primarily for our homeowners business written in the northeast United States. In addition, we experienced a decline in our Fireman’s Fund high net worth personal lines business for the three and nine months ended September 30, 2016 of $32

70

million and $296 million, respectively. The decline for the three month period was primarily due to the conversion to Chubb legal entities. The decline for the nine month period was driven by $252 million of a non-recurring unearned premium reserves (UPR) transfer in the prior year as well as the conversion to Chubb legal entities in the current year. Excluding these items, net premiums written were up 3.1 percent and 1.4 percent, respectively, for the three and nine months ended September 30, 2016, due to growth in our Chubb high net worth business, primarily within our homeowner lines, driven by strong renewal premium retention, rate and exposure increases as well as modest growth in new business.

Net premiums earned increased$809 million and $2,558 million for the three and nine months ended September 30, 2016, respectively, primarily due to the Chubb Corp acquisition. On an "As If" basis, net premiums earned decreased $66 million for the three months ended September 30, 2016 primarily due to the same factors driving the decrease in net premiums written as described above. For the nine months ended September 30, 2016, on an "As If" basis, net premiums earned increased $41 million, reflecting the earning in of prior year premium growth.

The following table presents the pre-tax catastrophe losses and pre-tax favorable prior period development:

	Three Months Ended September 30									Nine Months Ended September 30
							As If									As If
(in millions of U.S. dollars)	2016			2015			2015			2016			2015			2016			2015
Catastrophe losses, pre-tax	$	22		$	12		$	30		$	275		$	61		$	275		$	368
Favorable (unfavorable) prior period development, pre-tax	$	(38	)	$	(25	)	$	(19	)	$	(20	)	$	(25	)	$	(20	)	$	3

Catastrophe losses through September 30, 2016 were primarily from severe weather-related events in the U.S. Catastrophe losses through September 30, 2015 were primarily from severe weather-related events in the U.S., including the California wildfires.

The following table presents the impact of catastrophe losses and related reinstatement premiums and prior period reserve development on our loss and loss expense ratio:

	Three Months Ended				Nine Months Ended
	September 30				September 30
	2016		2015		2016		2015
Loss and loss expense ratio	54.9	%	65.8	%	59.1	%	64.9	%
Catastrophe losses and related reinstatement premiums	(2.1	)%	(4.1	)%	(8.4	)%	(8.9	)%
Prior period development	(3.5	)%	(9.1	)%	(0.7	)%	(3.6	)%
Loss and loss expense ratio, adjusted	49.3	%	52.6	%	50.0	%	52.4	%

The adjusted loss and loss expense ratio decreased3.3 percentage points and 2.4 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the addition of the Chubb Corp business, which experienced a lower loss ratio. On an "As If" basis, the adjusted loss and loss expense ratio decreased 1.4 percentage points and 1.6 percentage points for the three and nine months ended September 30, 2016, respectively, reflecting lower non-catastrophe weather related losses and integration related claims handling expense savings of $4 million (0.4 percentage points), and $10 million (0.3 percentage points), respectively.

The policy acquisition cost ratio increased16.3 percentage points and 16.7 percentage points for the three and nine months endedSeptember 30, 2016, primarily due to the impact of the Fireman's Fund purchase accounting in the prior year of $33 million (12.0 percentage points) and $81 million (11.8 percentage points), respectively, which included the favorable impact related to the recognition of the acquired unearned premiums without having to recognize the associated policy acquisition costs. In addition, the current year ratio was unfavorably impacted by the inclusion of the Chubb Corp business, which carried a higher acquisition cost ratio, and the normal impact of initial year purchase accounting related to the Chubb Corp acquisition. The Chubb Corp purchase accounting includes a fair value adjustment related to the unearned premiums at the date of purchase. This adjustment is then amortized into policy acquisition costs over the remaining coverage period.  Partially offsetting this is a favorable impact related to the recognition of the acquired unearned premiums without having to recognize the associated policy acquisition costs. The net impact of the Chubb Corp purchase accounting adjustments was an increase to acquisition expenses of $18 million (1.6 percentage points) and $78 million (2.4 percentage points), for the three and nine months endedSeptember 30, 2016, respectively.

71

On an "As If" basis, which excludes purchase accounting adjustments related to the Chubb Corp acquisition, the policy acquisition cost ratio increased 1.2 percentage points and 1.3 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to our Fireman's Fund acquisition in the prior year period which favorably impacted the prior year policy acquisition cost ratio by $33 million (2.8 percentage points) and $81 million (2.4 percentage points), respectively. This increase was partially offset by the favorable impact of the ceded commission benefits related to the merger-related purchase of additional reinsurance in the third quarter of 2016.

The administrative expense ratio decreased4.7 percentage points and 4.5 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the Chubb Corp acquisition which carried a lower administrative expense ratio.

On an "As If" basis, the administrative expense ratio decreased 0.2 percentage points for the three months ended September 30, 2016, primarily reflecting cost savings realized as a result of the Chubb Corp acquisition of $10 million (0.9 percentage points). For the nine months ended September 30, 2016, on an "As If" basis, the administrative expense ratio remained flat as cost savings realized of $25 million (0.7 percentage points), were offset by increased spending to support growth.

North America Agricultural Insurance

The North America Agricultural Insurance segment comprises our North American based businesses that provides 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								Nine Months Ended
	September 30						% Change		September 30						% Change
(in millions of U.S. dollars, except for percentages)	2016			2015			Q-16 vs. Q-15		2016			2015			YTD-16 vs. YTD-15
Net premiums written	$	849		$	737		15.2	%	$	1,288		$	1,204		6.9	%
Net premiums earned	819			739			10.9	%	1,169			1,124			4.0	%
Losses and loss expenses (1)	680			624			9.0	%	936			919			1.8	%
Policy acquisition costs	48			42			14.3	%	77			61			26.2	%
Administrative expenses	1			—			NM		(1		)	3			NM
Underwriting income	90			73			23.3	%	157			141			11.3	%
Net investment income	5			5			—		15			17			(11.8	)%
Other (income) expense	—			(1		)	100.0	%	—			1			(100.0	)%
Amortization of purchased intangibles	7			8			(12.5	)%	22			22			—
Segment income	$	88		$	71		23.9	%	$	150		$	135		11.1	%
Loss and loss expense ratio	83.0		%	84.5		%			80.1		%	81.8		%
Policy acquisition cost ratio	5.9		%	5.7		%			6.6		%	5.4		%
Administrative expense ratio	—			—					(0.1		)%	0.3		%
Combined ratio	88.9		%	90.2		%			86.6		%	87.5		%

⁽¹⁾  Gains on crop derivatives were$3 million and $1 million for the three and nine months ended September 30, 2016, respectively, compared with losses on crop derivatives of $4 million and $6 million for the prior year periods, respectively. These (gains) losses are included in Net realized gains (losses) in our consolidated statements of operations but are reclassified to Losses and loss expenses for purposes of presenting North America Agricultural Insurance underwriting income.

Net premiums written increased$112 million and $84 million for the three and nine months endedSeptember 30, 2016, respectively, due to higher premium retention as a result of the premium-sharing formulas with the U.S. government and lower cessions under existing third-party proportional reinsurance programs. Growth for the nine months ended September 30, 2016 was partially offset by lower premium retention as a result of the government's crop insurance profit and loss calculation formulas related to the 2015 crop year.

Net premiums earned increased$80 million and $45 million for the three and nine months ended September 30, 2016, respectively, primarily due to the same factors driving the increase in net premiums written as described above.

72

The following table presents the pre-tax catastrophe losses and pre-tax favorable prior period development:

	Three Months Ended				Nine Months Ended
	September 30				September 30
(in millions of U.S. dollars)	2016		2015		2016		2015
Catastrophe losses, pre-tax	$	1	$	—	$	17	$	8
Favorable prior period development, pre-tax	$	11	$	5	$	52	$	38

Catastrophe losses through September 30, 2016 and 2015 were primarily from our farm, ranch and specialty P&C business. For the three and nine months ended September 30, 2016, net favorable prior period development was $11 million and $52 million, respectively. For the nine months ended September 30, 2016, the prior period development amount included $85 million of favorable incurred losses due to lower than expected MPCI losses for the 2015 crop year, partially offset by $48 million of unfavorable decrease in net premiums earned related to the government’s crop insurance profit and loss calculation formula. Also included in prior period development but not impacting the loss and loss expense ratio was a $4 million favorable benefit of ceded profit share commissions earned from third-party reinsurers. For the three and nine months ended September 30, 2015, net favorable PPD was $5 million and $38 million, respectively. For the nine months ended September 30, 2015, the prior period development amount included a decrease in incurred losses of $36 million for lower than expected MPCI losses for the 2014 crop year, partially offset by a $3 million unfavorable decrease in net premiums earned related to the governments crop insurance profit and loss calculation formulas.

The following table presents the impact of catastrophe losses and related reinstatement premiums and prior period reserve development on our loss and loss expense ratio:

	Three Months Ended				Nine Months Ended
	September 30				September 30
	2016		2015		2016		2015
Loss and loss expense ratio	83.0	%	84.5	%	80.1	%	81.8	%
Catastrophe losses and related reinstatement premiums	(0.1	)%	—		(1.4	)%	(0.7	)%
Prior period development	1.3	%	0.6	%	4.7	%	3.3	%
Loss and loss expense ratio, adjusted	84.2	%	85.1	%	83.4	%	84.4	%

The adjusted loss and loss expense ratio decreased0.9 percentage points and 1.0 percentage point for the three and nine months ended September 30, 2016, respectively, primarily reflecting the gains on crop derivatives in 2016 compared to losses on crop derivatives in 2015.

The policy acquisition cost ratio remained relatively flat for the three months ended September 30, 2016. For the nine months endedSeptember 30, 2016, the policy acquisition cost ratio increased1.2 percentage points, due primarily to the $48 million reduction in net premiums earned related to the government's crop insurance profit and loss calculation formula this year, compared to a reduction of $3 million in the prior year. Excluding the impact of these reductions in net premiums earned, the policy acquisition ratio increased over prior year by 0.9 percentage points, primarily due to higher agent profit sharing commissions in the current year. In addition, during 2016, we determined that certain underwriting costs that are directly attributable to the successful acquisition of business previously classified as administrative expenses were more appropriately classified as policy acquisition costs. This resulted in a $1 million (0.1 percentage points) and $2 million (0.2 percentage points) increase to policy acquisition costs, with an offsetting decrease to administrative expenses for the three and nine months endedSeptember 30, 2016.

The administrative expense ratio remained relatively flat for the three months ended September 30, 2016. For the nine months endedSeptember 30, 2016, the administrative expense ratio decreased0.4 percentage points primarily due to higher Administrative and Operating (A&O) reimbursements on the MPCI business and the reclassification as noted above.

73

Overseas General Insurance

Overseas General Insurance segment comprises Chubb International and Chubb Global Markets (CGM). Chubb International comprises our 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 and Lloyd's Syndicate 1882. Chubb provides funds at Lloyd's to support underwriting by Syndicate 2488 and Syndicate 1882 which are managed by ACE Underwriting Agencies Limited. The reinsurance operation of CGM is included in the Global Reinsurance segment.

	Three Months Ended								Nine Months Ended
	September 30						% Change		September 30						% Change
(in millions of U.S. dollars, except for percentages)	2016			2015			Q-16 vs. Q-15		2016			2015			YTD-16 vs. YTD-15
Net premiums written (1)	$	1,940		$	1,584		22.5	%	$	6,012		$	5,047		19.1	%
Net premiums earned	2,034			1,615			26.0	%	6,082			4,896			24.2	%
Losses and loss expenses	843			674			25.1	%	2,953			2,304			28.2	%
Policy acquisition costs	546			405			34.8	%	1,586			1,190			33.3	%
Administrative expenses	261			246			6.1	%	801			756			6.0	%
Underwriting income (2)	384			290			32.4	%	742			646			14.9	%
Net investment income	152			132			15.2	%	445			409			8.8	%
Other (income) expense	(6		)	(6		)	—		(16		)	(12		)	33.3	%
Amortization of purchased intangibles	12			12			—		36			50			(28.0	)%
Segment income	$	530		$	416		27.4	%	$	1,167		$	1,017		14.7	%
Loss and loss expense ratio	41.5		%	41.7		%			48.6		%	47.1		%
Policy acquisition cost ratio	26.8		%	25.1		%			26.1		%	24.3		%
Administrative expense ratio	12.9		%	15.2		%			13.1		%	15.4		%
Combined ratio	81.2		%	82.0		%			87.8		%	86.8		%

⁽¹⁾  For the three and nine months endedSeptember 30, 2016, net premiums written increased $397 million and $1,247 million, or 25.8 percent and 26.2 percent, respectively, on a constant-dollar basis. Amounts are calculated by translating prior period results using the same local currency rates as the comparable current period. 

⁽²⁾  For the three and nine months endedSeptember 30, 2016, underwriting income increased $99 million and $122 million, or 34.2 percent and 19.6 percent, respectively, on a constant-dollar basis. Amounts are calculated by translating prior period results using the same local currency rates as the comparable current period

Net premiums written increased$356 million and $965 million for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the impact of the Chubb Corp acquisition, which added about $400 million and $1.2 billion, respectively, of growth in premiums. This increase was partially offset by the adverse impact of foreign exchange which decreased premiums by $41 million and $282 million for the three and nine months ended September 30, 2016, respectively.

For the three months ended September 30, 2016, net premiums written decreased$34 million, on a constant dollar "As If" basis, primarily driven by merger-related underwriting actions ($47 million), including the purchase of additional reinsurance. Excluding these actions, net premiums written were relatively flat as growth in personal lines in Asia and Europe was offset by declines in commercial property and casualty lines (P&C) in Latin America, reflecting economic conditions.

For the nine months endedSeptember 30, 2016, net premiums written increased$14 million on a constant dollar "As If" basis primarily driven by growth in personal and A&H lines which more than offset the declines in net premiums written experienced during the quarter as described above. Growth in personal lines was negatively impacted by our decision to exit the legacy Chubb Brazilian high net worth automobile business due to competitive market conditions.

Net premiums earned increased$419 million and $1,186 million for the three and nine months endedSeptember 30, 2016, respectively, and decreased$29 million and increased$74 million on an "As If" constant dollar basis, respectively, primarily due to the same factors driving the movements in net premiums written as described above.

74

Overseas General Insurance conducts business internationally and in most major foreign currencies. The following tables present a regional breakdown of Overseas General Insurance net premiums written:

	Three Months Ended September 30										% Change
(in millions of U.S. dollars, except for percentages)	2016		2016 % of Total		2015		2015 % of Total		C$(1) 2015		Q-16 vs. Q-15		C$(1)Q-16 vs. Q-15
Region
Europe	$	712	37	%	$	544	34	%	$	518	30.9	%	37.5	%
Latin America	470		24	%	435		27	%	409		8.0	%	14.9	%
Asia	663		34	%	506		32	%	521		31.0	%	27.3	%
Other(2)	95		5	%	99		6	%	95		(4.0	)%	—
Net premiums written	$	1,940	100	%	$	1,584	100	%	$	1,543	22.5	%	25.8	%

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

⁽²⁾ Combined International, Eurasia and Africa region, other international.

	Nine Months Ended September 30										% Change
(in millions of U.S. dollars, except for percentages)	2016		2016 % of Total		2015		2015 % of Total		C$(1) 2015		YTD-16 vs. YTD-15		C$(1)YTD-16 vs. YTD-15
Region
Europe	$	2,418	40	%	$	1,920	38	%	$	1,847	25.9	%	30.9	%
Latin America	1,435		24	%	1,348		27	%	1,183		6.5	%	21.3	%
Asia	1,874		31	%	1,479		29	%	1,454		26.7	%	28.9	%
Other(2)	285		5	%	300		6	%	281		(5.0	)%	1.4	%
Net premiums written	$	6,012	100	%	$	5,047	100	%	$	4,765	19.1	%	26.2	%

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

⁽²⁾ Combined International, Eurasia and Africa region, other international.

The following table presents the pre-tax catastrophe losses and pre-tax favorable prior period development:

	Three Months Ended September 30						Nine Months Ended September 30
					As If						As If
(in millions of U.S. dollars)	2016		2015		2015		2016		2015		2016		2015
Catastrophe losses, pre-tax	$	20	$	39	$	42	$	111	$	102	$	111	$	113
Favorable prior period development, pre-tax	$	223	$	177	$	231	$	338	$	269	$	338	$	371

Catastrophe losses through September 30, 2016 were primarily related to severe weather related events in Europe, an earthquake in Ecuador, and flooding in the U.K. Catastrophe losses through September 30, 2015 were primarily related to a chemical plant explosion in Tianjin, China, a hailstorm in Australia, flooding and an earthquake in Chile, and severe storms in Asia.

The following table presents the impact of catastrophe losses and related reinstatement premiums and prior period reserve development on our loss and loss expense ratio: 

	Three Months Ended				Nine Months Ended
	September 30				September 30
	2016		2015		2016		2015
Loss and loss expense ratio	41.5	%	41.7	%	48.6	%	47.1	%
Catastrophe losses and related reinstatement premiums	(1.1	)%	(2.5	)%	(1.9	)%	(2.1	)%
Prior period development	11.0	%	11.0	%	5.6	%	5.5	%
Loss and loss expense ratio, adjusted	51.4	%	50.2	%	52.3	%	50.5	%

75

The adjusted loss and loss expense ratio increased1.2 percentage points and 1.8 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the Chubb Corp acquisition which experienced a higher loss ratio.

On an "As If" basis, the adjusted loss and loss expense ratio decreased1.5 percentage points for the three months ended September 30, 2016, primarily due to a lower level of short-tail large losses in the current year. For the nine months ended September 30, 2016, the adjusted loss and loss expense ratio increased 0.5 percentage points compared to the prior year which had less short-tail large losses.

The policy acquisition cost ratio increased1.7 percentage points and 1.8 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily because we determined that certain underwriting costs that are directly attributable to the successful acquisition of business previously classified as administrative expenses were more appropriately classified as policy acquisition costs. This resulted in a $36 million (1.8 percentage points) and $108 million (1.8 percentage points) increase to policy acquisition costs, with an offsetting decrease to administrative expenses for the three and nine months endedSeptember 30, 2016, respectively.

On an "As If" basis, which excludes purchase accounting adjustments related to the Chubb Corp acquisition, the policy acquisition cost ratio increased0.8 percentage points and 0.7 percentage points for the three and nine months endedSeptember 30, 2016, respectively, due to a shift in the mix of business away from E&S lines, which carry a lower acquisition cost ratio, towards more personal lines products which carry a higher acquisition cost ratio.

The administrative expense ratio decreased2.3 percentage points for both the three and nine months endedSeptember 30, 2016, due to the $36 million (1.8 percentage points) and $108 million (1.8 percentage points) reclassification noted above, and cost savings realized as a result of the Chubb Corp acquisition of $23 million (1.1 percentage points), and $40 million (0.6 percentage points), respectively. This decrease was partially offset by increased spending to support growth initiatives.

On an "As If" basis, the administrative expense ratio decreased0.6 percentage points and 0.8 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to cost savings realized as a result of the Chubb Corp acquisition as noted above, partially offset by increased spending to support growth initiatives.

76

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. Following the Chubb Corp acquisition, Chubb Tempest Re USA includes the run-off business of legacy Chubb Re, and Chubb Tempest Re International includes the active legacy Chubb U.K. assumed reinsurance business. Global Reinsurance markets its reinsurance products worldwide under the Chubb Tempest Re brand name and provides a broad range of traditional reinsurance coverage to a diverse array of primary P&C companies.

	Three Months Ended								Nine Months Ended
	September 30						% Change		September 30						% Change
(in millions of U.S. dollars, except for percentages)	2016			2015			Q-16 vs. Q-15		2016			2015			YTD-16 vs. YTD-15
Net premiums written	$	131		$	185		(29.4	)%	$	562		$	719		(21.9	)%
Net premiums earned	156			203			(23.5	)%	543			649			(16.4	)%
Losses and loss expenses	49			20			145.0	%	225			191			17.8	%
Policy acquisition costs	42			52			(19.2	)%	142			166			(14.5	)%
Administrative expenses	12			12			—		40			37			8.1	%
Underwriting income	53			119			(55.5	)%	136			255			(46.7	)%
Net investment income	67			76			(11.8	)%	199			230			(13.5	)%
Other (income) expense	—			(4		)	NM		(3		)	(5		)	(40.0	)%
Segment income	$	120		$	199		(39.7	)%	$	338		$	490		(31.0	)%
Loss and loss expense ratio	31.3		%	9.6		%			41.5		%	29.4		%
Policy acquisition cost ratio	27.1		%	25.4		%			26.3		%	25.5		%
Administrative expense ratio	7.9		%	6.2		%			7.2		%	5.7		%
Combined ratio	66.3		%	41.2		%			75.0		%	60.6		%

Net premiums written decreased $54 million and $157 million for the three and nine months endedSeptember 30, 2016, respectively, as we maintained underwriting discipline in an environment of declining rates and increasing competition. In addition, the decline in premiums reflects increased cessions of $6 million and $17 million for the three and nine months endedSeptember 30, 2016, respectively, due to the purchase of additional property catastrophe retrocession contracts in 2016.

For the three and nine months endedSeptember 30, 2016, on an "As If" basis, net premiums written declined $54 million and $164 million, respectively, due to the same factors as described above.

Net premiums earned decreased $47 million and $106 million for the three and nine months endedSeptember 30, 2016, respectively, and also decreased $56 million and $124 million, respectively, on an "As If" basis primarily due to the same factors driving the decrease in net premiums written as described above.

The following table presents pre-tax catastrophe losses, excluding reinstatement premiums, and pre-tax favorable prior period development, net of related reinstatement premiums:

	Three Months Ended September 30						Nine Months Ended September 30
					As If						As If
(in millions of U.S dollars)	2016		2015		2015		2016		2015		2016		2015
Catastrophe losses, pre-tax	$	11	$	11	$	11	$	64	$	16	$	64	$	17
Favorable prior period development and related reinstatement premiums, pre-tax	$	28	$	78	$	84	$	78	$	119	$	78	$	131

Catastrophe losses through September 30, 2016 were primarily related to the Fort McMurray wildfire and severe weather-related events in Europe, the U.S. and Canada. Catastrophe losses through September 30, 2015 were primarily related to severe weather-related events in the U.S.

77

The following table presents the impact of catastrophe losses and related reinstatement premiums and prior period reserve development and related reinstatement premiums on our loss and loss expense ratio:

	Three Months Ended						Nine Months Ended
	September 30						September 30
	2016			2015			2016			2015
Loss and loss expense ratio	31.3		%	9.6		%	41.5		%	29.4		%
Catastrophe losses and related reinstatement premiums (1)	(7.2		)%	(5.2		)%	(11.6		)%	(2.4		)%
Prior period development and related reinstatement premiums (2)	20.1		%	39.9		%	15.4		%	18.7		%
Loss and loss expense ratio, adjusted	44.2		%	44.3		%	45.3		%	45.7		%
(1) Catastrophe reinstatement premiums collected - pre-tax	$	—		$	—		$	6		$	—
(2) Reinstatement premiums expensed on prior period development - pre-tax	$	5		$	4		$	5		$	4

The adjusted loss and loss expense ratio decreased 0.1 percentage points and 0.4 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to a change in the mix of business towards products that have a lower loss ratio. On an "As If" basis, the adjusted loss and loss expense ratio decreased 1.1 percentage points and 0.9 percentage points for the three and nine months ended September 30, 2016, respectively, primarily due to the change in mix of business as described above.

The policy acquisition cost ratio increased 1.7 percentage points and 0.8 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to a change in the mix of business towards regions and products that have higher acquisition cost ratios, partially offset by the impact of the Chubb Corp acquisition which carries a lower acquisition cost ratio.

On an "As If" basis, the policy acquisition cost ratio increased 2.8 percentage points and 1.7 percentage points for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the change in the mix of business as described above.

The administrative expense ratio increased 1.7 percentage points and 1.5 percentage points for the three and nine months ended September 30, 2016, respectively, primarily due to decreases in net premiums earned.

On an "As If" basis, the administrative expense ratio increased 1.6 percentage points and 0.7 percentage points for the three and nine months ended September 30, 2016, respectively, primarily due to decreases in net premiums earned outpacing the decline in administrative expenses.

78

Life Insurance

The Life Insurance segment comprises Chubb's international life operations (Chubb Life), 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								Nine Months Ended
	September 30						% Change		September 30					% Change
(in millions of U.S. dollars, except for percentages)	2016			2015			Q-16 vs. Q-15		2016			2015		YTD-16 vs. YTD-15
Net premiums written	$	532		$	492		8.1	%	$	1,575		$	1,483	6.2	%
Net premiums earned	512			480			6.7	%	1,521			1,441		5.5	%
Losses and loss expenses	174			153			13.7	%	498			442		12.7	%
Policy benefits (1)	155			89			74.2	%	427			384		11.2	%
(Gains) losses from fair value changes in separate account assets (1)	(22		)	49			NM		(22		)	32		NM
Policy acquisition costs	127			117			8.5	%	386			342		12.9	%
Administrative expenses	77			74			4.1	%	226			221		2.3	%
Net investment income	71			66			7.6	%	207			198		4.5	%
Life Insurance underwriting income	72			64			12.5	%	213			218		(2.3	)%
Other (income) expense (1)	2			(1		)	NM		8			—		NM
Amortization of purchased intangibles	1			—			NM		2			1		100.0	%
Segment income	$	69		$	65		6.2	%	$	203		$	217	(6.5	)%

⁽¹⁾  (Gains) losses from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP have been reclassified from Other income (expense) for purposes of presenting Life Insurance underwriting income. The offsetting movement in the separate account liabilities is included in Policy benefits.

Net premiums written increased $40 million and $92 million for the three and nine months endedSeptember 30, 2016, respectively, primarily reflecting the impact of the Chubb Corp acquisition, which added $16 million and $52 million of growth to premiums, respectively. In addition, growth in our international life operations, primarily in Asia, and in our Combined Insurance supplemental A&H program business contributed to the increase. The adverse effect of foreign exchange impacted growth in net premiums written by $5 million and $40 million for the three and nine months endedSeptember 30, 2016, respectively. Our life reinsurance business continues to decline as there is no new life reinsurance business currently being written.

On an "As If" basis, net premiums written increased $17 million and $21 million for the three and nine months endedSeptember 30, 2016, respectively, due to the same factors as described above.

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

	Three Months Ended										Nine Months Ended
	September 30						% Change				September 30						% Change
(in millions of U.S. dollars, except for percentages)	2016		2015		C$(1) 2015		Q-16 vs. Q-15		C$ (1) Q-16 vs. Q-15		2016		2015		C$(1) 2015		Y-16 vs. Y-15		C$ (1) Y-16 vs. Y-15
Deposits collected on Universal life and investment contracts	$	273	$	210	$	211	30.0	%	29.8	%	$	748	$	726	$	703	3.0	%	6.5	%

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

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 for the three and nine months ended September 30, 2016, due to growth in the Asian markets, primarily in Hong Kong and Taiwan, partially offset by a decline in Korea. Foreign exchange adversely impacted growth by $23 million for the nine months ended September 30, 2016.

79

Other (income) expense of $2 million and $8 million for the three and nine months endedSeptember 30, 2016, respectively, were related primarily to our share of net (income) loss of partially-owned entities. Refer to the Other Income and Expense Items section for further information.

Life Insurance underwriting income increased $8 million for the three months ended September 30, 2016 compared to the prior year. The prior year period included an unfavorable loss reserve development in the Combined Insurance supplemental A&H program business. Life insurance underwriting income decreased $5 million for the nine months ended September 30, 2016 primarily reflecting the decline in our life reinsurance business as there is no new business being written.

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 run-off exposures.

Our exposure to A&E claims principally arises out of liabilities acquired when we purchased Westchester Specialty in 1998, CIGNA’s P&C business in 1999, and legacy Chubb Corp A&E claims in 2016. Corporate staff expenses and net investment income of Chubb Limited, including the amortization of the fair valued of acquired invested assets and debt, interest expense, amortization of purchased intangibles related to the Chubb Corp acquisition, Chubb integration expenses and other merger-related expenses and the results of Chubb Group Management and Holdings Ltd, and Chubb INA Holdings, Inc. are reported within Corporate.

	Three Months Ended								Nine Months Ended
	September 30						% Change		September 30						% Change
(in millions of U.S. dollars, except for percentages)	2016			2015			Q-16 vs. Q-15		2016			2015			YTD-16 vs. YTD-15
Losses and loss expenses (1)	$	63		$	84		(25.0	)%	$	87		$	142		(38.7	)%
Administrative expenses	57			46			23.9	%	192			135			42.2	%
Underwriting loss	120			130			(7.7	)%	279			277			0.7	%
Net investment income (loss)	(86		)	3			NM		(271		)	9			NM
Interest expense	152			68			123.5	%	451			207			117.9	%
Net realized gains (losses)	97			(393		)	NM		(511		)	(354		)	44.4	%
Other (income) expense	(70		)	(23		)	204.3	%	(59		)	(73		)	(19.2	)%
Amortization expense (benefit) of purchased intangibles	(20		)	—			NM		(60		)	—			NM
Chubb integration expenses	115			9			NM		361			9			NM
Income tax expense	277			132			109.8	%	556			395			40.8	%
Net loss	$	(563	)	$	(706	)	(20.3	)%	$	(2,310	)	$	(1,160	)	99.1	%
(1) Losses and loss expenses - As If basis	$	63		$	114		(44.7	)%	$	87		$	191		(54.5	)%
NM - not meaningful

Losses and loss expenses in both years were primarily due to unfavorable prior period development related to Brandywine environmental exposures, as well as unallocated loss adjustment expenses of the A&E claim operations. Refer to the Prior Period Development section for further information.

Administrative expenses increased $11 million and $57 million for the three and nine months endedSeptember 30, 2016, respectively, primarily due to the Chubb Corp acquisition. On an "As If" basis, administrative expenses decreased $27 million and $39 million, respectively, primarily due to cost savings realized as a result of the Chubb Corp acquisition.

Net investment income for the three and nine months endedSeptember 30, 2016 included amortization of $91 million and $292 million, respectively, related to the fair value adjustment on invested assets related to the Chubb Corp acquisition. Excluding the fair value adjustment amortization, net investment income increased $2 million and $12 million for the three and

80

nine months endedSeptember 30, 2016, respectively. Refer to the Net Investment Income section for a discussion on consolidated Net investment income.

Interest expense increased $84 million and $244 million for the three and nine months endedSeptember 30, 2016, respectively, primarily driven by the $5.3 billion senior notes issued in November 2015, as well as the $3.3 billion par value of debt assumed in connection with the Chubb Corp acquisition.

Net realized gains for the three months ended September 30, 2016, were primarily associated with a net decrease in the fair value of GLB liabilities. The decrease was primarily due to higher global equity market levels and higher interest rates, partially offset by the unfavorable impact of discounting future claims for one less quarter. For the nine months endedSeptember 30, 2016, net realized losses were primarily associated with a net increase in the fair value of GLB liabilities. The increase was primarily due to lower interest rates and the unfavorable impact of discounting future claims for three less quarters. In addition, we maintain positions in derivative instruments that decrease in fair value when the S&P 500 index increases. During the three and nine months endedSeptember 30, 2016, we experienced realized losses of $45 million and $88 million, respectively, related to these derivative instruments. Additionally, there were realized gains (losses) on our investment portfolios during the three and nine months endedSeptember 30, 2016 of $21 million and $(199) million, respectively. For further discussion of the remaining Net realized gains and (losses), refer to the Net realized and unrealized gains and (losses) section.

Other (income) expense of $(70) million and $(59) million for the three and nine months endedSeptember 30, 2016, respectively, were related primarily to our share of net (income) loss of partially-owned entities. Refer to the Other Income and Expense Items section for further information.

Amortization benefit of purchased intangibles related to the Chubb Corp acquisition was $20 million and $60 million for the three and nine months endedSeptember 30, 2016, respectively, reflecting the favorable impact of the amortization of the fair value adjustment on acquired Unpaid losses and loss expense, offset by the amortization of other intangibles, including agency distribution relationships and internally developed technology, related to the Chubb Corp acquisition. This amortization is considered a corporate cost as it is incurred by the overall company.

Chubb integration expenses were $115 million for the three months ended September 30, 2016, primarily comprising $37 million of personnel-related expenses, including severance and employee retention and relocation, $25 million of consulting fees, and $21 million of leases and real estate costs. Chubb integration expenses were $361 million for the nine months endedSeptember 30, 2016, primarily comprising $153 million of personnel-related expenses, $70 million of consulting fees, $34 million of leases and real estate costs, and $38 million of advisor fees. Chubb integration expenses are one-time in nature and are not related to the on-going business activities of the segments. The Chief Executive Officer does not manage segment results or allocate resources to segments when considering these costs and they are therefore excluded from our definition of segment income.

Non-GAAP Reconciliation

We provide financial measures such as net premiums written and net premiums earned on a constant-dollar basis. We believe it is useful to evaluate the trends in these measures 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 are non-GAAP financial measures and 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.   

"As If" measures presented throughout this section are prepared exclusive of the impact of the unearned premium reserves intangible amortization and the elimination of the historical policy acquisition costs as a result of purchase accounting related to the Chubb Corp acquisition in order to present the underlying profitability of our insurance business for the entire relevant periods.  We believe this measure provides visibility into our results, allows for comparability to our historical results and is

81

consistent with how management evaluates results.  We have discussed our results on an "As If" basis for both the current and prior year periods, which are defined below:

2016 "As If" results: The combined company results do not include the impact of the unearned premium reserves intangible amortization and the elimination of the historical policy acquisition costs as a result of purchase accounting related to the Chubb Corp acquisition. The combined company results for the nine months endedSeptember 30, 2016 are inclusive of the first 14 days of January 2016 (the Chubb Corp acquisition closed January 14, 2016).

2015 "As If" results: Legacy ACE plus legacy Chubb Corp historical results after accounting policy alignment adjustments, including reclassifying certain legacy Chubb Corp corporate expenses to administrative expenses and redefining legacy Chubb Corp segment underwriting income by allocating the amortization of deferred policy acquisition costs to each segment.  2015 "As If" results exclude purchase accounting adjustments.

The following tables present a reconciliation of 2016 "As If" results to 2016 results, as well as 2015 "As If" results to 2015 results and pro forma results as calculated in accordance with SEC Article 11:

	Three Months Ended
	September 30
(in millions of U.S. dollars, except percentages)	North America Commercial P&C Insurance			North America Personal P&C Insurance			North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Life Insurance			Consolidated
Net premiums written
2016
Net premiums written	$	3,110		$	1,011		$	849		$	1,940		$	131		$	532		$	7,573
2015 As If
Net premiums written	$	1,433		$	278		$	737		$	1,584		$	185		$	492		$	4,709
Legacy Chubb	1,753			932			—			478			—			8			3,171
Accounting policy alignment	—			—			—			(5		)	—			15			10
2015 As If (1)	$	3,186		$	1,210		$	737		$	2,057		$	185		$	515		$	7,890
Constant-dollar 2015 As If	$	3,185		$	1,210		$	737		$	1,974		$	182		$	511		$	7,799
Constant-dollar change As If	$	(75	)	$	(199	)	$	112		$	(34	)	$	(51	)	$	21		$	(226	)
Constant-dollar percent change As If	(2.4		)%	(16.4		)%	15.2		%	(1.7		)%	(28.5		)%	4.3		%	(2.9		)%
	Nine Months Ended
	September 30
Net premiums written
2016 As If
Net premiums written	$	8,657		$	3,113		$	1,288		$	6,012		$	562		$	1,575		$	21,207
14 day stub period	519			100			—			215			20			1			855
2016 As If	$	9,176		$	3,213		$	1,288		$	6,227		$	582		$	1,576		$	22,062
2015 As If
Net premiums written	$	4,158		$	958		$	1,204		$	5,047		$	719		$	1,483		$	13,569
Legacy Chubb	5,209			2,711			—			1,612			27			27			9,586
Accounting policy alignment	—			—			—			14			—			45			59
2015 As If (1)	$	9,367		$	3,669		$	1,204		$	6,673		$	746		$	1,555		$	23,214
Constant-dollar 2015 As If	$	9,357		$	3,664		$	1,204		$	6,213		$	735		$	1,514		$	22,687
Constant-dollar change As If	$	(181	)	$	(451	)	$	84		$	14		$	(153	)	$	62		$	(625	)
Constant-dollar percent change As If	(1.9		)%	(12.3		)%	6.9		%	0.2		%	(20.9		)%	4.1		%	(2.8		)%

⁽¹⁾ As If amounts for premium are calculated on the same basis as SEC pro forma.

82

	Three Months Ended
	September 30
(in millions of U.S. dollars, except percentages)	North America Commercial P&C Insurance			North America Personal P&C Insurance			North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Life Insurance			Consolidated
Net premiums earned
2016
Net premiums earned	$	3,086		$	1,081		$	819		$	2,034		$	156		$	512		$	7,688
2015 As If
Net premiums earned	$	1,410		$	272		$	739		$	1,615		$	203		$	480		$	4,719
Legacy Chubb	1,746			875			—			527			9			9			3,166
Accounting policy alignment	—			—			—			4			—			14			18
2015 As If (1)	$	3,156		$	1,147		$	739		$	2,146		$	212		$	503		$	7,903
Constant-dollar 2015 As If	$	3,155		$	1,147		$	739		$	2,063		$	208		$	499		$	7,811
Constant-dollar change As If	$	(69	)	$	(66	)	$	80		$	(29	)	$	(52	)	$	13		$	(123	)
Constant-dollar percent change As If	(2.1		)%	(5.9		)%	10.9		%	(1.3		)%	(25.6		)%	2.5		%	(1.6		)%
	Nine Months Ended
	September 30
Net premiums earned
2016
Net premiums earned	$	9,130		$	3,245		$	1,169		$	6,082		$	543		$	1,521		$	21,690
14 day stub period	208			110			—			71			—			2			391
2016 As If	$	9,338		$	3,355		$	1,169		$	6,153		$	543		$	1,523		$	22,081
2015 As If
Net premiums earned	$	4,209		$	687		$	1,124		$	4,896		$	649		$	1,441		$	13,006
Legacy Chubb	5,135			2,627			—			1,595			18			29			9,404
Accounting policy alignment	—			—			—			(9		)	—			42			33
2015 As If (1)	$	9,344		$	3,314		$	1,124		$	6,482		$	667		$	1,512		$	22,443
Constant-dollar 2015 As If	$	9,332		$	3,313		$	1,124		$	6,079		$	658		$	1,473		$	21,979
Constant-dollar change As If	$	6		$	42		$	45		$	74		$	(115	)	$	50		$	102
Constant-dollar percent change As If	0.1		%	1.2		%	4.0		%	1.2		%	(17.5		)%	3.3		%	0.5		%

⁽¹⁾ As If amounts for premium are calculated on the same basis as SEC pro forma.

83

	Three Months Ended September 30
(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			Corporate			Total P&C
Loss and loss expenses
2016
Loss and loss expenses	$	1,863		$	594		$	680		$	843		$	49		$	63		$	4,092
2015
Loss and loss expenses	$	913		$	179		$	624		$	674		$	20		$	84		$	2,494
Legacy Chubb	885			450			—			257			1			35			1,628
Accounting policy alignments	—			—			—			17			—			(5		)	12
2015 As If (1)	$	1,798		$	629		$	624		$	948		$	21		$	114		$	4,134
Policy acquisition costs
2016
Policy acquisition costs	$	522		$	229		$	48		$	546		$	42		$	—		$	1,387
Amortization of acquired unearned premium reserves intangible asset	(176		)	(101		)	—			(43		)	—			—			(320		)
Elimination of deferred acquisition cost benefit	150			83			—			48			—			—			281
2016 As If	$	496		$	211		$	48		$	551		$	42		$	—		$	1,348
2015
Policy acquisition costs	$	142		$	13		$	42		$	405		$	52		$	—		$	654
Legacy Chubb	343			193			—			127			—			—			663
Accounting policy alignment	32			5			—			31			—			—			68
2015 As If	$	517		$	211		$	42		$	563		$	52		$	—		$	1,385
Amortization of acquired unearned premium reserves intangible asset	158			91			—			39			—			—			288
Elimination of deferred acquisition cost benefit	(136		)	(77		)	—			(34		)	—			—			(247		)
2015 SEC pro forma	$	539		$	225		$	42		$	568		$	52		$	—		$	1,426
Administrative expenses
2016
Administrative expenses	$	275		$	89		$	1		$	261		$	12		$	57		$	695
2015
Administrative expenses	$	154		$	36		$	—		$	246		$	12		$	46		$	494
Legacy Chubb	166			67			—			88			1			18			340
Accounting policy alignment	(32		)	(5		)	—			(44		)	—			20			(61		)
2015 As If (1)	$	288		$	98		$	—		$	290		$	13		$	84		$	773
(Favorable) and unfavorable PPD, pre-tax
2015
(Favorable) and unfavorable PPD, pre-tax	$	(59	)	$	25		$	(5	)	$	(177	)	$	(78	)	$	84		$	(210	)
Legacy Chubb	(143		)	(6		)	—			(54		)	(6		)	30			(179		)
2015 As If (1)	$	(202	)	$	19		$	(5	)	$	(231	)	$	(84	)	$	114		$	(389	)
Catastrophe losses, pre-tax
2015
Catastrophe losses, pre-tax	$	10		$	12		$	—		$	39		$	11		$	—		$	72
Legacy Chubb	8			18			—			3			—			—			29
2015 As If (1)	$	18		$	30		$	—		$	42		$	11		$	—		$	101

⁽¹⁾As If amounts for Loss and loss expenses, Administrative expenses, Prior period development and Catastrophe losses are calculated on the same basis as SEC pro forma.

84

	Nine Months Ended September 30
(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			Corporate			Total P&C
Loss and loss expenses
2016
Loss and loss expenses	$	5,581		$	1,916		$	936		$	2,953		$	225		$	87		$	11,698
14 day stub period	127			53			—			42			—			—			222
2016 As If	$	5,708		$	1,969		$	936		$	2,995		$	225		$	87		$	11,920
2015
Loss and loss expenses	$	2,744		$	446		$	919		$	2,304		$	191		$	142		$	6,746
Legacy Chubb	2,754			1,626			—			803			1			61			5,245
Accounting policy alignments	—			—			—			2			—			(12		)	(10		)
2015 As If (1)	$	5,498		$	2,072		$	919		$	3,109		$	192		$	191		$	11,981
Policy acquisition costs
2016
Policy acquisition costs	$	1,549		$	747		$	77		$	1,586		$	142		$	—		$	4,101
Amortization of acquired unearned premium reserves intangible asset	(781		)	(447		)	—			(187		)	—			—			(1,415		)
Elimination of deferred acquisition cost benefit	663			369			—			214			—			—			1,246
14 day stub period	33			14			—			13			—			—			60
2016 As If	$	1,464		$	683		$	77		$	1,626		$	142		$	—		$	3,992
2015
Policy acquisition costs	$	403		$	43		$	61		$	1,190		$	166		$	—		$	1,863
Legacy Chubb	984			576			—			377			—			—			1,937
Accounting policy alignment	95			11			—			96			—						202
2015 As If	$	1,482		$	630		$	61		$	1,663		$	166		$	—		$	4,002
Amortization of acquired unearned premium reserves intangible asset	802			460			—			189			—			—			1,451
Elimination of deferred acquisition cost benefit	(656		)	(376		)	—			(153		)	—			—			(1,185		)
2015 SEC pro forma	$	1,628		$	714		$	61		$	1,699		$	166		$	—		$	4,268
Administrative expenses
2016
Administrative expenses	$	840		$	275		$	(1	)	$	801		$	40		$	192		$	2,147
14 day stub period	35			13			—			12			—			3			63
2016 As If	$	875		$	288		$	(1	)	$	813		$	40		$	195		$	2,210
2015
Administrative expenses	$	459		$	89		$	3		$	756		$	37		$	135		$	1,479
Legacy Chubb	519			205			—			261			6			39			1,030
Accounting policy alignment	(95		)	(11		)	—			(106		)	—			60			(152		)
2015 As If (1)	$	883		$	283		$	3		$	911		$	43		$	234		$	2,357
(Favorable) and unfavorable PPD, pre-tax
2015
(Favorable) and unfavorable PPD, pre-tax	$	(185	)	$	25		$	(38	)	$	(269	)	$	(119	)	$	140		$	(446	)
Legacy Chubb	(378		)	(28		)	—			(102		)	(12		)	49			(471		)
2015 As If (1)	$	(563	)	$	(3	)	$	(38	)	$	(371	)	$	(131	)	$	189		$	(917	)
Catastrophe losses, pre-tax
2015
Catastrophe losses, pre-tax	$	60		$	61		$	8		$	102		$	16		$	—		$	247
Legacy Chubb	124			307			—			11			1			—			443
2015 As If (1)	$	184		$	368		$	8		$	113		$	17		$	—		$	690

⁽¹⁾As If amounts for Loss and loss expenses, Administrative expenses, Prior period development and Catastrophe losses are calculated on the same basis as SEC pro forma.

85

The following table presents a reconciliation of the GAAP combined ratio to P&C combined ratio. The P&C combined ratio is a non-GAAP financial measure and includes the impact of 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 will impact underwriting results. We view gains and losses on these derivatives as part of the results of our underwriting operations.

	Three Months Ended				Nine Months Ended
	September 30				September 30
	2016		2015		2016		2015
GAAP combined ratio	86.0	%	85.8	%	89.0	%	87.2	%
(Gains) losses on crop derivatives	—		0.1	%	—		—
P&C combined ratio	86.0	%	85.9	%	89.0	%	87.2	%

Other Income and Expense Items

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Equity in net (income) loss of partially-owned entities	$	(79	)	$	(46	)	$	(95	)	$	(119	)
(Gains) losses from fair value changes in separate account assets (1)	(22		)	49			(22		)	32
Federal excise and capital taxes	2			6			8			14
Acquisition-related costs (2)	—			5			2			8
Other	8			(2		)	15			4
Other (income) expense	$	(91	)	$	12		$	(92	)	$	(61	)

⁽¹⁾  Related to (gains) losses from fair value changes in separate account assets that do not qualify for separate account reporting under GAAP.

⁽²⁾  Excludes integration costs related to the Chubb Corp acquisition.

Other (income) expense includes equity in net (income) loss of partially-owned entities, which includes our share of net (income) loss related to partially-owned investment companies (private equity) and partially-owned insurance companies. Also included in Other (income) 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) expense as these are considered capital transactions and are excluded from underwriting results.

86

Amortization of Purchased Intangibles and Other Amortization

Amortization of purchased intangibles was $4 million and $16 million for the three and nine months endedSeptember 30, 2016, respectively, compared with $51 million and $136 million in the prior year periods, respectively.  Amortization of purchased intangibles was lower in 2016 due primarily to the favorable impact of the amortization benefit of the fair value adjustment on acquired Unpaid losses and loss expense offset by the amortization expense of other intangibles, including agency distribution relationships and internally developed technology, related to the Chubb Corp acquisition. For example, as presented in the table below, in the fourth quarter of 2016, we expect to recognize amortization expense of $3 million which includes $20 million of amortization benefit related to the Chubb Corp acquisition that will offset $23 million of amortization expense related to our other intangibles.

The following table presents, as of September 30, 2016, the estimated pre-tax amortization expense (benefit), at current foreign currency exchange rates, for the fourth quarter of 2016 and the next five years, for intangibles related to the Chubb Corp acquisition and intangibles from prior acquisitions:

	Associated with the Chubb Corp Acquisition
For the Year Ending December 31 (in millions of U.S. dollars)	Agency distribution relationships and renewal rights		Internally developed technology		Fair value adjustment to Unpaid losses and loss expenses			Total			Other intangible assets		Total Amortization of purchased intangibles
Fourth quarter of 2016	$	33	$	8	$	(61	)	$	(20	)	$	23	$	3
2017	296		32		(161		)	167			85		252
2018	324		32		(102		)	254			73		327
2019	281		—		(62		)	219			66		285
2020	240		—		(36		)	204			59		263
2021	217		—		(20		)	197			53		250
Total	$	1,391	$	72	$	(442	)	$	1,021		$	359	$	1,380

Amortization of Unearned premium reserves (UPR) intangible assets and Expected future benefit associated with the elimination of historical deferred policy acquisition costs (DAC) asset

At the date of the Chubb Corp acquisition, as part of purchase accounting, we recorded an intangible asset of $1,550 million related to the fair value adjustment for the UPR recorded on legacy Chubb Corp books, which is expected to amortize over the remaining coverage period as additional policy acquisition costs. At September 30, 2016, the remaining UPR intangible asset balance of $144 million, at current foreign currency exchange rates, is expected to fully amortize in the fourth quarter of 2016.

In addition, as part of purchase accounting, we expected to recognize a benefit of $1,376 million associated with unearned premiums being recognized over the remaining coverage period with no expense for the historical acquisition costs. The recognition of this DAC elimination is expected to amortize in a similar pattern as the UPR intangible asset amortization as noted above. At September 30, 2016, the remaining benefit associated with the DAC elimination of $128 million, at current foreign currency exchange rates, is expected to fully amortize in the fourth quarter of 2016.

Reduction of deferred tax liability associated with intangible assets related to the Chubb Corp acquisition

At the date of acquisition, we recorded a deferred tax liability of $2,679 million, which assumed an expected 35 percent tax rate, associated with agency distribution relationships and renewal rights, internally developed technology, and Unearned Premium Reserves (UPR) intangible assets related to the Chubb Corp acquisition. For example, for the fourth quarter of 2016, the expected reduction to deferred tax liability of $65 million associated with intangible assets in the table below is calculated by applying the 35 percent expected tax rate against the sum of the estimated amortization of $185 million, comprised of agency distribution relationships and renewal rights of $33 million, internally developed technology of $8 million, and UPR intangible assets of $144 million (from above). At September 30, 2016, the deferred tax liability associated with these intangibles was $2,140 million.

87

The following table below presents, as of September 30, 2016, the expected reduction to the deferred tax liability at current foreign currency exchange rates, which reduces as agency distribution relationships and renewal rights, internally developed technology, and UPR intangible assets amortize for the fourth quarter of 2016 and the next five years:

For the Year Ending December 31 (in millions of U.S. dollars)	Reduction to deferred tax liability associated with intangible assets
Fourth quarter of 2016	$	65
2017	115
2018	125
2019	98
2020	84
2021	76
Total	$	563

Amortization of the fair value of acquired invested assets

In addition to the amortization of purchased intangibles outlined in the table above, at September 30, 2016, we expect amortization of the fair value of acquired invested assets of approximately $100 million for the fourth quarter of 2016, $360 million in 2017, $320 million in each 2018 and 2019, and $250 million in 2020 at current foreign currency exchange rates. This estimate could vary materially based on current market conditions, bond calls, and overall duration of the acquired investment portfolio. The amortization of the fair value adjustment on acquired invested assets is recorded as a reduction to Net investment income in the Consolidated statements of operations.

Amortization of the fair value adjustment on assumed long-term debt

The benefit from the amortization of the fair value adjustment on assumed long-term debt was $12 million and $35 million for the three and nine months endedSeptember 30, 2016, respectively. As of September 30, 2016, we expect a benefit from the amortization of the fair value adjustment on assumed long-term debt of $12 million for the fourth quarter of 2016, and the next five years as follows: $49 million in 2017, $31 million in 2018, and $19 million in each of the years 2019 through 2021. The amortization of the fair value adjustment on assumed long-term debt is recorded as a reduction to Interest expense in the Consolidated statements of operations.

Net Investment Income

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Fixed maturities	$	715		$	536		$	2,044		$	1,628
Short-term investments	24			10			69			33
Equity securities	10			4			31			13
Other investments	28			27			81			76
Gross investment income	777			577			2,225			1,750
Investment expenses	(38		)	(28		)	(104		)	(88		)
Net investment income	$	739		$	549		$	2,121		$	1,662

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 increased 34.7 percent and 27.7 percent for the three and nine months ended September 30, 2016, respectively, compared with the prior year periods. The increases for the three and nine months ended September 30, 2016 were primarily due to the Chubb Corp acquisition which added $312 million and $884 million of net investment income, respectively, partially offset by the unfavorable impact of liquidating investments to fund the acquisition, the unfavorable impact of amortizing the purchase accounting fair value adjustment to investments at the date of acquisition of $91 million and $292 million, respectively, and the unfavorable impact of foreign exchange.

88

The investment portfolio’s average market yield on fixed maturities was 2.2 percent and 2.9 percent at September 30, 2016 and 2015, respectively. Average market yield on fixed maturities represents the weighted average yield to maturity of our fixed income portfolio based on the market prices of the holdings at that date.

The 2.7 percent and 2.4 percent yield on short-term investments for the three and nine months ended September 30, 2016, respectively, reflects the global nature of our insurance operations.

For the three and nine months ended September 30, 2016, the increase in net investment income from our equity securities reflects the higher invested assets as a result of the Chubb Corp acquisition.

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 certain 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.

The effect of market movements on our available for sale investment portfolio impacts Net income (through Net realized gains (losses)) when securities are sold or when we record an Other-than-temporary impairment (OTTI) charge in Net income. For a discussion related to how we assess OTTI for all of our investments, including credit-related OTTI, and the related impact on Net income, refer to Note 3 c) to the Consolidated Financial Statements. Additionally, Net income is impacted through the reporting of changes in the fair value of 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 translation adjustment, and unrealized pension liability adjustment, are 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 September 30, 2016									Three Months Ended September 30, 2015
(in millions of U.S. dollars)	Net Realized Gains (Losses)(1)			Net Unrealized Gains (Losses)			Net Impact			Net Realized Gains (Losses) (1)			Net Unrealized Gains (Losses)			Net Impact
Fixed maturities	$	27		$	195		$	222		$	(51	)	$	(237	)	$	(288	)
Fixed income derivatives	1			—			1			(22		)	—			(22		)
Public equity	6			23			29			2			(34		)	(32		)
Private equity	(13		)	(4		)	(17		)	(1		)	(12		)	(13		)
Total investment portfolio	21			214			235			(72		)	(283		)	(355		)
Variable annuity reinsurance derivative transactions, net of applicable hedges	44			—			44			(313		)	—			(313		)
Other derivatives	3			—			3			(9		)	—			(9		)
Foreign exchange	29			(124		)	(95		)	(2		)	(575		)	(577		)
Other	3			5			8			(1		)	14			13
Net gains (losses) before tax	100			95			195			(397		)	(844		)	(1,241		)
Income tax expense (benefit)	27			79			106			(6		)	(45		)	(51		)
Net gains (losses)	$	73		$	16		$	89		$	(391	)	$	(799	)	$	(1,190	)

⁽¹⁾  For the three months ended September 30, 2016, other-than-temporary impairments included $7 million for fixed maturities, $1 million for public equity, and $4 million for private equity. For the three months ended September 30, 2015, other-than-temporary impairments included $26 million for fixed maturities, $3 million for public equity, and $1 million for private equity.

89

	Nine Months Ended September 30, 2016									Nine Months Ended September 30, 2015
(in millions of U.S. dollars)	Net Realized Gains (Losses) (1)			Net Unrealized Gains (Losses)			Net Impact			Net Realized Gains (Losses) (1)			Net Unrealized Gains (Losses)			Net Impact
Fixed maturities	$	(156	)	$	2,237		$	2,081		$	(50	)	$	(630	)	$	(680	)
Fixed income derivatives	(85		)	—			(85		)	6			—			6
Public equity	39			52			91			32			(40		)	(8		)
Private equity	3			(73		)	(70		)	10			(19		)	(9		)
Total investment portfolio	(199		)	2,216			2,017			(2		)	(689		)	(691		)
Variable annuity reinsurance derivative transactions, net of applicable hedges	(358		)	—			(358		)	(268		)	—			(268		)
Other derivatives	1			—			1			(10		)	—			(10		)
Foreign exchange	46			269			315			(73		)	(860		)	(933		)
Other	—			8			8			(7		)	1			(6		)
Net gains (losses) before tax	(510		)	2,493			1,983			(360		)	(1,548		)	(1,908		)
Income tax expense (benefit)	22			561			583			2			(145		)	(143		)
Net gains (losses)	$	(532	)	$	1,932		$	1,400		$	(362	)	$	(1,403	)	$	(1,765	)

⁽¹⁾  For the nine months ended September 30, 2016, other-than-temporary impairments included $77 million for fixed maturities, $7 million for public equity, and $7 million for private equity. For the nine months ended September 30, 2015, other-than-temporary impairments included $46 million for fixed maturities, $4 million for public equity, and $1 million for private equity.

Investments

Our investment portfolio is invested primarily in publicly traded, investment grade, fixed income securities with an average credit quality of A/Aa as rated by the independent investment rating services Standard and Poor’s (S&P)/ Moody’s Investors Service (Moody’s). 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 or collateralized loan 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 3.9 years and 3.5 years at September 30, 2016 and December 31, 2015, respectively. We estimate that a 100 basis point (bps) increase in interest rates would reduce the valuation of our fixed income portfolio by approximately $3.8 billion at September 30, 2016.

90

The following table shows the fair value and cost/amortized cost of our invested assets:

	September 30, 2016				December 31, 2015
(in millions of U.S. dollars)	Fair Value		Cost/ Amortized Cost		Fair Value		Cost/ Amortized Cost
Fixed maturities available for sale	$	81,358	$	78,630	$	43,587	$	43,149
Fixed maturities held to maturity	11,366		10,927		8,552		8,430
Short-term investments	3,548		3,548		10,446		10,446
	96,272		93,105		62,585		62,025
Equity securities	803		695		497		441
Other investments	4,400		4,170		3,291		2,993
Total investments	$	101,475	$	97,970	$	66,373	$	65,459

The fair value of our total investments increased $35.1 billion during the nine months ended September 30, 2016, primarily due to the Chubb Corp acquisition, which added $43.0 billion at the date of acquisition, the investing of operating cash flows, and unrealized appreciation, partially offset by investments sold to fund the Chubb Corp acquisition.

The following tables present the market value of our fixed maturities and short-term investments at September 30, 2016 and December 31, 2015. The first table lists investments according to type and second according to S&P credit rating:

	September 30, 2016				December 31, 2015
(in millions of U.S. dollars, except for percentages)	Market Value		% of Total		Market Value		% of Total
Treasury	$	2,885	3	%	$	2,395	4	%
Agency	558		1	%	878		1	%
Corporate and asset-backed securities	26,754		28	%	17,985		28	%
Mortgage-backed securities	15,040		15	%	11,701		19	%
Municipal	24,240		25	%	4,950		8	%
Non-U.S.	23,247		24	%	14,230		23	%
Short-term investments	3,548		4	%	10,446		17	%
Total	$	96,272	100	%	$	62,585	100	%
AAA	$	16,878	17	%	$	14,369	23	%
AA	37,325		39	%	22,141		36	%
A	17,956		19	%	10,163		16	%
BBB	12,387		13	%	8,941		14	%
BB	6,719		7	%	3,775		6	%
B	4,722		5	%	3,018		5	%
Other	285		—	%	178		—	%
Total	$	96,272	100	%	$	62,585	100	%

91

Corporate and asset-backed securities

The following table presents our 10 largest global exposures to corporate bonds by market value at September 30, 2016:

(in millions of U.S. dollars)	Market Value
JP Morgan Chase & Co	$	572
Wells Fargo & Co	487
General Electric Co	448
Goldman Sachs Group Inc	430
Anheuser-Busch InBev NV	371
Verizon Communications Inc	365
Morgan Stanley	342
AT&T Inc	340
Bank of America Corp	339
Berkshire Hathaway Inc	331

Mortgage-backed securities

	S&P Credit Rating										Market  Value		Amortized Cost
September 30, 2016 (in millions of U.S. dollars)	AAA		AA		A		BBB		BB and below		Total		Total
Agency residential mortgage-backed (RMBS)	$	—	$	12,175	$	—	$	—	$	—	$	12,175	$	11,806
Non-agency RMBS	1		5		11		5		34		56		57
Commercial mortgage-backed	2,776		27		6		—		—		2,809		2,727
Total mortgage-backed securities	$	2,777	$	12,207	$	17	$	5	$	34	$	15,040	$	14,590

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 ACE European Group which is headquartered in London 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 55 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. Because of this investment approach, we do not have a direct exposure to troubled sovereign borrowers in Europe. We manage our indirect exposure using the same credit rating based investment approach. Accordingly, we do not believe our indirect exposure is material.

92

The following table summarizes the market value and amortized cost of our non-U.S. fixed income portfolio by country/sovereign for non-U.S. government securities at September 30, 2016: 

(in millions of U.S. dollars)	Market Value		Amortized Cost
United Kingdom	$	1,719	$	1,644
Canada	1,187		1,164
Republic of Korea	1,117		952
Federative Republic of Brazil	808		798
Province of Ontario	494		475
Germany	465		444
Kingdom of Thailand	436		396
United Mexican States	432		427
Province of Quebec	423		405
Australia	320		297
Other Non-U.S. Government Securities (1)	4,292		4,100
Total	$	11,693	$	11,102

⁽¹⁾  There are no investments in Portugal, Ireland, Italy, Greece or Spain.

The following table summarizes the market value and amortized cost of our non-U.S. fixed income portfolio by country/sovereign for non-U.S. corporate securities at September 30, 2016: 

(in millions of U.S. dollars)	Market Value		Amortized Cost
United Kingdom	$	2,219	$	1,765
Canada	1,443		1,406
United States (1)	878		821
France	873		755
Netherlands	827		712
Australia	666		601
Germany	617		472
Japan	423		415
Switzerland	345		295
China	277		249
Other Non-U.S. Corporate Securities	2,986		3,600
Total	$	11,554	$	11,091

⁽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 September 30, 2016, our corporate fixed income investment portfolio included below-investment grade and non-rated securities which, in total, comprised approximately 10 percent of our fixed income portfolio. Our below-investment grade and non-rated portfolio includes over 1,100 issuers, with the greatest single exposure being $185 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. Nine external investment managers are responsible for high-yield security selection

93

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 loan obligations) are not permitted in the high-yield portfolio.

Critical Accounting Estimates

As of September 30, 2016, 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 2015 Form 10-K.

Reinsurance recoverable on ceded reinsurance

	September 30		December 31
(in millions of U.S. dollars)	2016		2015
Reinsurance recoverable on unpaid losses and loss expenses (1)	$	12,676	$	10,741
Reinsurance recoverable on paid losses and loss expenses(1)	772		645
Reinsurance recoverable on losses and loss expenses (1)	$	13,448	$	11,386
Reinsurance recoverable on policy benefits (1)	$	195	$	187

⁽¹⁾  Net of provision for uncollectible reinsurance

We evaluate the financial condition of our reinsurers and potential reinsurers on a regular basis and also monitor concentrations of credit risk with reinsurers. The provision for uncollectible reinsurance is required principally due to the potential failure of reinsurers to indemnify us, primarily because of disputes under reinsurance contracts and insolvencies. The provision for uncollectible reinsurance is based on a default analysis applied to gross reinsurance recoverables, net of approximately $3.2 billion and $2.6 billion of collateral at September 30, 2016 and December 31, 2015, respectively. The increase in reinsurance recoverable on losses and loss expenses was primarily due to the Chubb Corp acquisition.

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 that are discounted in statutory filings, 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, 2015	$	37,303		$	10,741		$	26,562
Losses and loss expenses incurred	15,237			3,040			12,197
Losses and loss expenses paid	(14,012		)	(2,677		)	(11,335		)
Other (including foreign exchange translation)	(87		)	68			(155		)
Losses and loss expenses acquired from Chubb Corp	22,906			1,504			21,402
Balance at September 30, 2016	$	61,347		$	12,676		$	48,671

⁽¹⁾  Net of provision for uncollectible reinsurance

Unpaid losses and loss expenses acquired from Chubb Corp included an increase of $715 million to adjust the carrying value of Chubb Corp's historical unpaid losses and loss expenses to fair value as of the acquisition date. The estimated fair value consists of the present value of the expected net unpaid loss and loss adjustment expenses payments adjusted for an estimated risk margin. The expected cash flows are discounted at a risk free rate. The estimated risk margin varies based on the inherent risks associated with each type of reserve. This adjustment will be amortized to Amortization of purchased intangibles on the Consolidated statements of operations over a range of 5 to 17 years, based on the estimated payout pattern of the loss reserves as of the acquisition date.

94

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).

The following table presents our total reserves segregated between case reserves (including loss expense reserves) and IBNR reserves: 

	September 30, 2016						December 31, 2015
(in millions of U.S. dollars)	Gross		Ceded		Net		Gross		Ceded		Net
Case reserves	$	23,100	$	5,815	$	17,285	$	16,647	$	5,291	$	11,356
IBNR reserves	38,247		6,861		31,386		20,656		5,450		15,206
Total	$	61,347	$	12,676	$	48,671	$	37,303	$	10,741	$	26,562

Asbestos and Environmental (A&E)

During the three months ended September 30, 2016, an internal review was conducted to evaluate the adequacy of environmental liabilities. As a result of the internal review, we increased environmental gross reserves for Brandywine managed operations by $103 million while the net loss reserves increased by $52 million. A&E reserves are included in Corporate. Refer to Corporate in the Overview section and to our 2015 Form 10-K for further information on our A&E exposures.

Fair value measurements

Refer to Note 4 to the Consolidated Financial Statements for information on our fair value measurements.

Assumed reinsurance programs involving minimum benefit guarantees under variable annuity contracts

Chubb reinsures various death and living benefit guarantees associated with variable annuities issued primarily in the United States and Japan.

We ceased writing this business in 2007. Guarantees which are payable on death are referred to as guaranteed minimum death benefits (GMDB). Guarantees on living benefits (GLB) includes guaranteed minimum income benefits (GMIB) and guaranteed minimum accumulation benefits (GMAB). For further description of this product and related accounting treatment, refer to Note 1 to the Consolidated Financial Statements of our 2015 Form 10-K.

Guaranteed living benefits (GLB) derivatives

Our GLB reinsurance is classified as a derivative for accounting purposes and therefore carried at fair value. We believe that the most meaningful presentation of these GLB derivatives is as follows:

• Estimates of the average modeled value of future cash outflows is recorded as incurred losses (i.e., benefit reserves). Cash inflows or revenue are reported as net premiums earned and changes in the benefit reserves are reflected as Policy benefits expense in the Consolidated statements of operations, which is included in underwriting income.

• The incremental difference between the fair value of GLB reinsurance contracts and benefit reserves is reflected in Accounts payable, accrued expenses, and other liabilities in the Consolidated balance sheets and related changes in fair value are reflected in Net realized gains (losses) in the Consolidated statements of operations.

Determination of GLB fair value

The fair value of GLB reinsurance is estimated using an internal valuation model, which includes current market information and estimates of policyholder behavior from the perspective of a theoretical market participant that would assume these liabilities. All of our 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. 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 more timely market information. Due to the inherent uncertainties of the assumptions used in the valuation models to determine the fair value of these derivative products, actual experience may differ materially from the estimates reflected in our Consolidated Financial Statements.

95

We intend to hold these derivative contracts to maturity (i.e., the expiration of the underlying liabilities through lapse, annuitization, death, or expiration of the reinsurance contract). To partially offset the risk of changes in the fair value of GLB reinsurance contracts, we invest in derivative hedge instruments. At maturity, the cumulative realized gains and losses (excluding cumulative hedge gains or losses) from fair value changes of GLB reinsurance contracts will net to zero because, over time, the insurance liability will be increased or decreased to equal our obligation.

Determination of GLB and Guaranteed minimum death benefits (GMDB) benefit reserves

Management established benefit reserves based on a long-term benefit ratio (or loss ratio) calculated using assumptions reflecting management’s best estimate of the future short-term and long-term performance of the variable annuity line of business. Despite the long-term nature of the risk, the benefit ratio calculation is impacted by short-term market movements that may be judged by management to be transient. Management regularly examines both qualitative and quantitative analysis, including a review of the differential between the benefit ratio used at the most recent valuation date and the benefit ratio calculated on subsequent dates. Management regularly evaluates its estimates and uses judgment to determine the extent to which assumptions underlying the benefit ratio calculation should be adjusted. For the nine months endedSeptember 30, 2016 and 2015, management determined that no change to the benefit ratio was warranted.

For further information on the estimates and assumptions used in determining the fair value of GLB reinsurance, refer to Note 4 to the Consolidated Financial Statements of our 2015 Form 10-K. For a sensitivity discussion of the effect of changes in interest rates, equity indices, and other assumptions on the fair value of GLBs, and the resulting impact on our net income, refer to Item 3.

Risk Management

We employ a strategy to manage the financial market and policyholder behavior risks embedded in the reinsurance of variable annuity (VA) guarantees. Risk management begins with underwriting a prospective client and guarantee design, with particular focus on protecting our position from policyholder options that, because of anti-selective behavior, could adversely impact our obligation.

A second layer of risk management is the structure of the reinsurance contracts. All VA guarantee reinsurance contracts include some form of annual or aggregate claim limit(s). For further information on the different categories of claim limits, refer to "Guaranteed living benefits derivatives" in our 2015 Form 10-K under Item 7.

A third layer of risk management is the hedging strategy which looks to mitigate both long-term economic loss over time as well as dampen income statement volatility. We owned financial market instruments as part of the hedging strategy with a fair value asset (liability) of $4 million and $(4) million at September 30, 2016 and December 31, 2015, respectively. The instruments are substantially collateralized by our counterparties, on a daily basis.

We also limit the aggregate amount of variable annuity reinsurance guarantee risk we are willing to assume. The last substantive transactions were quoted in late 2007. The aggregate number of policyholders is currently decreasing through policyholder withdrawals, annuitizations, and deaths at a rate of 5 percent to 15 percent per annum.

Note that GLB claims cannot occur for any reinsured policy until it has reached the end of its “waiting period”. As shown in the table below, 60 percent of the policies we reinsure reached the end of their “waiting periods” prior to September 30, 2016.

Year of first payment eligibility	Percent of living benefit account values
September 30, 2016 and prior	60	%
Remainder of 2016	1	%
2017	20	%
2018	11	%
2019	2	%
2020	1	%
2021 and after	5	%
Total	100	%

96

The following table presents the historical cash flows under these policies for the periods indicated. The amounts represent accrued past premium received and claims paid, split by benefit type.

	Three Months Ended September 30												Nine Months Ended September 30
(in millions of U.S. dollars)	2016						2015						2016						2015
	GMDB		GLB		Total		GMDB		GLB		Total		GMDB		GLB		Total		GMDB		GLB		Total
Premium received	$	14	$	29	$	43	$	15	$	30	$	45	$	42	$	88	$	130	$	47	$	91	$	138
Less paid claims	9		14		23		6		4		10		32		31		63		23		11		34
Net cash received	$	5	$	15	$	20	$	9	$	26	$	35	$	10	$	57	$	67	$	24	$	80	$	104

Collateral

Chubb holds collateral on behalf of most of its clients in the form of qualified assets in trust or letters of credit, typically in an amount sufficient for the client to obtain statutory reserve credit for the reinsurance. The timing of the calculation and amount of the collateral varies by client according to the particulars of the reinsurance treaty and the statutory reserve guidelines of the client’s domicile.

Catastrophe management

We actively monitor our catastrophe risk accumulation around the world. The table below presents our modeled annual aggregate pre-tax probable maximum loss (PML), net of reinsurance, for 100-year and 250-year return periods for U.S. hurricane and California earthquake at September 30, 2016 and 2015. The table also presents Chubb’s corresponding share of pre-tax industry PMLs for each of the return periods for U.S. hurricane and California earthquake. For example, according to the model, for the 1-in-100 return period scenario, there is a one percent chance that our losses incurred in any year from U.S. hurricane events could be in excess of $2,964 million (or 6.1 percent of our total shareholders’ equity at September 30, 2016). We estimate that at such hypothetical loss levels, Chubb’s share of the aggregate industry PML would be approximately 2.1 percent.

	Modeled Annual Aggregate Net PML
	U.S. Hurricane								California Earthquake
	September 30						September 30		September 30						September 30
	2016						2015		2016						2015
(in millions of U.S. dollars, except for percentages)	Chubb		% of Total Shareholders’ Equity		% of Industry		Chubb		Chubb		% of Total Shareholders’ Equity		% of Industry		Chubb
1-in-100	$	2,964	6.1	%	2.1	%	$	1,709	$	1,475	3.0	%	3.8	%	$	730
1-in-250	$	5,049	10.4	%	2.5	%	$	2,351	$	1,948	4.0	%	3.2	%	$	1,019

The above modeled loss information at September 30, 2016 reflects our in-force portfolio at July 1, 2016. Effective April 1, 2016 Chubb renewed its Global Property Catastrophe Program for our North American and International operations that provides global natural catastrophe and terrorism coverage. The September 30, 2016 modeled loss information reflects the April 1, 2016 reinsurance program as well as the inuring reinsurance protections coverage at July 1, 2016. Refer to “Natural catastrophe property reinsurance program” for additional information on our reinsurance program.

The modeling estimates of both Chubb and industry loss levels are inherently uncertain owing to key assumptions. First, while the use of third-party catastrophe modeling packages to simulate potential hurricane and earthquake losses is prevalent within the insurance industry, the models are reliant upon significant meteorology, seismology, and engineering assumptions to estimate hurricane and earthquake losses. In particular, modeled hurricane and earthquake events are not always a representation of actual events and ensuing additional loss potential. Second, there is no universal standard in the preparation of insured data for use in the models and the running of the modeling software. Third, we are reliant upon third-party estimates of industry insured exposures, and there is significant variation possible around the relationship between our loss and that of the industry following an event. Fourth, we assume that our reinsurance recoveries following an event are fully collectible. 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.

97

Natural Catastrophe Property 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 purchases a Global Property Catastrophe Reinsurance Program for our North American and International operations. The program is effective April 1, 2016 through March 31, 2017, and consists of three layers in excess of losses retained by Chubb. In addition, we also purchased 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, 2016 through March 31, 2017 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 – $1.25 billion	All natural perils, and terrorism	(b)
United States (excluding Alaska and Hawaii)	$1.25 billion – $2.0 billion	All natural perils, and terrorism	(c)
United States (excluding Alaska and Hawaii)	$2.0 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 – $925 million	All natural perils, and terrorism	(c)
Alaska, Hawaii, and Canada	$925 million – $2.425 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 20% placed with Reinsurers.

^(c) These coverages are both part of the same Second layer within the Global Catastrophe Program and are 100% placed with Reinsurers. As such, it may be exhausted in one region and not available in the other.

^(d) These coverages are both part of the same Third layer within the Global Catastrophe Program and are 100% placed with Reinsurers. As such, it may be exhausted in one region and not available in the other.

Chubb also has two series of property catastrophe bonds in place (assumed as part of the Chubb Corp acquisition) that offer additional natural catastrophe protection for certain parts of the portfolio.  The geographic scope of this coverage is from Virginia through Maine. The East Lane VI 2014 series currently provides $270 million of coverage as part of a $300 million layer in excess of $3.453 billion retention through March 14, 2018. The East Lane VI 2015 series currently provides $250 million of coverage as part of a $500 million layer in excess of $2.602 billion retention through March 13, 2020.

Crop Insurance

We are, and have been since the 1980s, one of the leading writers of crop insurance in the U.S. and have conducted that business through a managing general agent subsidiary of Rain and Hail. We provide protection throughout the U.S. on a variety of crops and are therefore geographically diversified, which reduces the risk of exposure to a single event or a heavy accumulation of losses in any one region. Our crop insurance business comprises two components – Multiple Peril Crop Insurance (MPCI) and crop-hail insurance.

98

The MPCI program is offered in conjunction with the U.S. Department of Agriculture (USDA). The policies cover revenue shortfalls or production losses due to natural causes such as drought, excessive moisture, hail, wind, frost, insects, and disease. Generally, policies have deductibles ranging from 10 percent to 50 percent of the insured's risk. The USDA's Risk Management Agency (RMA) sets the policy terms and conditions, rates and forms, and is also responsible for setting compliance standards. As a participating company, we report all details of policies underwritten to the RMA and are party to a Standard Reinsurance Agreement (SRA). The SRA sets out the relationship between private insurance companies and the Federal Crop Insurance Corporation (FCIC) concerning the terms and conditions regarding the risks each will bear including the pro-rata and state stop-loss provisions which allows companies to limit the exposure of any one state or group of states on their underwriting results. In addition to the pro-rata and excess of loss reinsurance protections inherent in the SRA, we also purchase third-party proportional and stop-loss reinsurance for our MPCI business to reduce our exposure. We may also enter into crop derivative contracts to further manage our risk exposure.

Each year the RMA issues a final SRA for the subsequent reinsurance year. In June 2016, the RMA released the 2017 SRA which establishes the terms and conditions for the 2017 reinsurance year (i.e., July 1, 2016 through June 30, 2017) that replaced the 2016 SRA.  There were no significant changes in the terms and conditions, and therefore the new SRA does not impact Chubb's outlook on the crop program relative to 2017.

On the MPCI business, we recognize net premiums written as soon as estimable, which is generally when we receive acreage reports from the policyholders on the various crops throughout the U.S. This allows us to best determine the premium associated with the liability that is being planted. The MPCI program has specific timeframes as to when producers must report acreage to us and in certain cases, the reporting occurs after the close of the respective reinsurance year. Once the net premium written has been recorded, the premium is then earned over the growing season for the crops. A majority of the crops that are covered in the program are typically subject to the SRA in effect at the beginning of the year. Given the major crops covered in the program, we typically see a substantial written and earned premium impact in the second and third quarters.

The pricing of MPCI premium is determined using a number of factors including commodity prices and related volatility. For instance, in most states the pricing for the MPCI Revenue Product for corn includes a factor that is based on the average price in February of the Chicago Board of Trade December corn futures. To the extent that the corn commodity prices are higher in February than they were in the previous February, and all other factors are the same, the increase in corn prices will increase the corn premium year over year.

Our crop-hail program is a private offering. Premium is earned on the crop-hail program over the coverage period of the policy. Given the very short nature of the growing season, most crop-hail business is typically written in the second and third quarters with the earned premium also more heavily occurring during this time frame. We use industry data to develop our own rates and forms for the coverage offered. The policy primarily protects farmers against yield reduction caused by hail and/or fire, and related costs such as transit to storage. We offer various deductibles to allow the grower to partially self-insure for a reduced premium cost. We limit our crop-hail exposures through the use of township liability limits and third-party proportional and stop-loss reinsurance on our net retained hail business.

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 an available $1.5 billion letter of credit/revolver facility. At September 30, 2016, our usage of this letter of credit was $457 million. Our access to funds under an existing credit facility is dependent on the ability of the bank that is a party to the facility to meet its funding commitments. Our existing credit facility has a remaining term expiring in November 2017 and requires that we maintain certain financial covenants, all of which we met at September 30, 2016. Should our existing credit provider 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 facility. Refer to “Credit Facilities” in our 2015 Form 10-K for additional information.

99

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 nine months ended September 30, 2016, we were able to meet all of 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 $5.0 billion from its Bermuda subsidiaries in 2015, of which $2.7 billion were paid in 2015, while the remaining $2.3 billion were paid during the first quarter of 2016. These dividends were used to finance a portion of the Chubb Corp acquisition by making capital contributions to Chubb INA and Chubb Group Holdings, both subsidiaries of Chubb Limited. In addition, Chubb Limited received dividends of $875 million and $15 million from its Bermuda subsidiaries during the nine months ended September 30, 2016 and 2015, respectively. Chubb Limited received dividends of nil and $261 million from its Switzerland subsidiaries during the nine months ended September 30, 2016 and 2015, respectively.

The payment of any dividends from CGM or its subsidiaries is subject to applicable U.K. insurance laws and regulations. In addition, the release of funds by Syndicate 2488 to subsidiaries of CGM is subject to regulations promulgated by the Society of Lloyd’s. 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 CGM or Chubb INA during the nine months ended September 30, 2016 and 2015. 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 dividends of $1.2 billion and nil from its subsidiaries during the nine months ended September 30, 2016 and 2015, respectively.

Chubb INA received $1.0 billion in capital contributions from Chubb Limited and $4.2 billion from Chubb Group Holdings during the nine months ended September 30, 2016. Chubb INA also received $5.1 billion in capital contributions in 2015, of which $2.8 billion were paid in 2015, while the remaining $2.3 billion were paid in 2016. $5.0 billion of these capital contributions were sourced from the dividends from the Bermuda subsidiaries to fund the Chubb Corp acquisition as noted above.

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 nine months ended September 30, 2016 and 2015.

Operating cash flows were $3.84 billion in the nine months ended September 30, 2016, compared with $2.70 billion in the prior year period. The $1,138 million increase in operating cash flows was primarily due to cash flow contributions from legacy Chubb Corp operations, partially offset by integration expenses paid and higher interest paid on long-term debt.

Cash used for investing was $4.27 billion in the nine months endedSeptember 30, 2016, compared with $1.43 billion in the prior year period. The increase in cash used for investing of $2,849 million was primarily due to cash paid for the purchase of Chubb Corp of $14.25 billion, which was largely funded by sales in our investment portfolio, including net proceeds in short-term investments which offset the cash paid for Chubb Corp. The prior year cash used for investing included cash paid for the purchase of the Fireman's Fund of $365 million, which when netted with cash acquired of $620 million, resulted in a net $255 million of cash inflow.

Cash used for financing was $510 million in the nine months endedSeptember 30, 2016, compared with $777 million in the prior year period. The current year included $851 million of dividends paid on common shares reflecting our higher outstanding share count following the Chubb Corp acquisition, partially offset by policyholder deposits, net of withdrawals, of $226 million. The prior year included $644 million of dividends paid on common shares, $758 million of shares repurchased, and $451 million for the repayments of long-term debt, partially offset by $800 million of proceeds from the issuance of long-term debt.

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

100

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.

In the current low interest rate environment, we use repurchase agreements as a low-cost alternative for short-term funding needs and to address short-term cash timing differences without disrupting our long-term investment portfolio holdings. At September 30, 2016, there were $1.4 billion in repurchase agreements outstanding with various maturities over the next 4 months.

Capital Resources

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

	September 30			December 31
(in millions of U.S. dollars, except for percentages)	2016			2015
Short-term debt	$	500		$	—
Long-term debt	12,621			9,389
Total debt	13,121			9,389
Trust preferred securities	308			307
Total shareholders’ equity	48,372			29,135
Total capitalization	$	61,801		$	38,831
Ratio of debt to total capitalization	21.2		%	24.2		%
Ratio of debt plus trust preferred securities to total capitalization	21.7		%	25.0		%

In April 2015, the FASB issued new guidance related to the accounting for debt issuance costs.  The new guidance requires presentation of debt issuance costs in the balance sheet as a deduction from the carrying amount of the related debt liability instead of a deferred charge.  We retrospectively adopted this guidance effective first quarter of 2016 and reclassified $60 million of debt issuance costs from Other assets to Long-term debt ($58 million) and Trust preferred securities ($2 million) as of December 31, 2015 to conform to the current period presentation.

On January 14, 2016, we acquired Chubb Corp for approximately $29.5 billion, comprising $14.3 billion in cash and $15.2 billion in newly-issued stock, based on the Chubb Limited (formerly ACE Limited) closing price on the acquisition date. In addition, we assumed outstanding equity awards to employees and directors with an attributed value of approximately $323 million. The total consideration, including assumption of equity awards, was $29.8 billion. We financed the cash portion of the transaction through a combination of $9.0 billion sourced from various Chubb Limited and Chubb Corp companies plus $5.3 billion of senior notes, which were issued in November 2015. Refer to Note 2 and Note 7 to the Consolidated Financial Statements for additional information on the acquisition and the $5.3 billion of senior notes, respectively.

As part of the acquisition, we assumed Chubb Corp’s senior and subordinated debt obligations, totaling $3.3 billion par value (fair valued at $3.8 billion at the acquisition date), which is guaranteed by Chubb Limited. Included in the debt obligations are junior subordinated capital securities of $1.0 billion that bear interest at a fixed rate of 6.375 percent through April 14, 2017 and at a rate equal to the three-month Libor rate plus 2.25 percent thereafter. If the current three-month Libor rate is not substantially higher in early 2017, and the near-term expectations are similar, it is our expectation that these securities would not be redeemed at the reset date. However, our expectations are subject to change depending on market conditions and other factors.

In February 2016, we reclassified $500 million of 5.7 percent senior notes, due to mature in February 2017, from Long-term debt to Short-term debt in the consolidated balance sheet.

For the nine months ended September 30, 2015, we repurchased $734 million of Common Shares in a series of open market transactions under the Board of Directors (Board) authorization which expired on December 31, 2015. There are no outstanding repurchase authorizations subsequent to December 31, 2015. At this time, management has elected to discontinue share repurchases. At September 30, 2016, there were 14,497,754 Common Shares in treasury with a weighted average cost of $106.92 per share.

101

We generally maintain the ability to issue certain classes of debt and equity securities via an unlimited Securities and Exchange Commission (SEC) shelf registration which is renewed every three years. This allows us capital market access for refinancing as well as for unforeseen or opportunistic capital needs. In October 2015, we filed a new unlimited shelf registration which allows us to issue certain classes of debt and equity. This shelf registration expires in October 2018.

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 9 to the Consolidated Financial Statements for a discussion of our dividend methodology.

At our May 2016 annual general meeting, our shareholders approved an annual dividend for the following year of up to $2.76 per share, or CHF 2.72 per share, calculated using the USD/CHF exchange rate as published in the Wall Street Journal on May 19, 2016, expected to be paid in four quarterly installments of $0.69 per share after the general meeting by way of a distribution from capital contribution reserves, transferred to free reserves for payment. The Board will determine the record and payment dates at which the annual dividend may be paid until the date of the 2017 annual general meeting, and is authorized to abstain from distributing a dividend at their discretion. The annual dividend approved in May 2016 represented an $0.08 per share increase ($0.02 per quarter) over the prior year dividend.

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 31, 2015	January 21, 2016	$0.67 (CHF 0.67)
March 31, 2016	April 21, 2016	$0.67 (CHF 0.66)
June 30, 2016	July 21, 2016	$0.69 (CHF 0.68)
September 30, 2016	October 21, 2016	$0.69 (CHF 0.67)

ITEM 3. Quantitative and Qualitative Disclosures about Market Risk

Market Sensitive Instruments and Risk Management

Market risk represents the potential for loss due to adverse changes in the fair value of financial instruments. We are exposed to potential losses from various market risks including changes in interest rates, equity prices, and foreign currency exchange rates. Further, through writing the GLB and GMDB products, we are exposed to volatility in the equity and credit markets, as well as interest rates. Our investment portfolio consists primarily of fixed income securities, denominated in both U.S. dollars and foreign currencies, which are sensitive to changes in interest rates and foreign currency exchange rates. The majority of our fixed income portfolio is classified as available for sale. The effect of market movements on our available for sale investment portfolio impacts Net income (through Net realized gains (losses)) when securities are sold or when we record an OTTI charge in Net income. Changes in interest rates and foreign currency exchange rates will have an immediate effect on Shareholders' equity and Comprehensive income and in certain instances, Net income. From time to time, we also use derivative instruments such as futures, options, swaps, and foreign currency forward contracts to manage the duration of our investment portfolio and foreign currency exposures and also to obtain exposure to a particular financial market. At September 30, 2016 and December 31, 2015, our notional exposure to derivative instruments was $5.0 billionand $3.1 billion, respectively. These instruments are recognized as assets or liabilities in our consolidated financial statements and are sensitive to changes in interest rates, foreign currency exchange rates, and equity security prices. As part of our investing activities, we from time to time purchase to be announced mortgage backed securities (TBAs). Changes in the fair value of TBAs are included in Net realized gains (losses) and therefore, have an immediate effect on both our Net income and Shareholders' equity.

We seek to mitigate market risk using a number of techniques, including maintaining and managing the assets and liabilities of our international operations consistent with the foreign currencies of the underlying insurance and reinsurance businesses, thereby limiting exchange rate risk to net assets denominated in foreign currencies.

The following is a discussion of our primary market risk exposures at September 30, 2016. Our policies to address these risks in 2016 were not materially different from 2015. We do not currently anticipate significant changes in our primary market risk

102

exposures or in how those exposures are managed in future reporting periods based upon what is known or expected to be in effect in future reporting periods.

Interest rate risk – fixed income portfolio and debt obligations

Our fixed income portfolio and debt obligations have exposure to interest rate risk. Changes in investment values attributable to interest rate changes are mitigated by corresponding and partially offsetting changes in the economic value of our insurance reserves and debt obligations. We monitor this exposure through periodic reviews of our asset and liability positions.

The following table presents the impact at September 30, 2016 and December 31, 2015, on the fair value of our fixed income portfolio of a hypothetical increase in interest rates of 100 bps applied instantly across the U.S. yield curve (an immediate time horizon was used as this presents the worst case scenario):

(in billions of U.S. dollars, except for percentages)		September 30 2016			December 31 2015
Fair value of fixed income portfolio		$	96.3		$	62.6
Pre-tax impact of 100 bps increase in interest rates:
	In dollars	$	3.8		$	2.2
	As a percentage of total fixed income portfolio at fair value	3.9		%	3.5		%

Changes in interest rates will have an immediate effect on Comprehensive income and Shareholders' equity but will not ordinarily have an immediate effect on Net income. Variations in market interest rates could produce significant changes in the timing of prepayments due to available prepayment options. For these reasons, actual results could differ from those reflected in the tables.

Changes in interest rates could have a material impact on our debt and trust preferred securities fair value, albeit there would be no impact on our consolidated financial statements.

The following table presents the impact at September 30, 2016 and December 31, 2015, on the fair value of our debt obligations of a hypothetical decrease in interest rates of 100 bps applied instantly across the U.S. yield curve (an immediate time horizon was used as this presents the worst case scenario):

(in millions of U.S. dollars, except for percentages)	September 30 2016			December 31 2015
Fair value of debt obligations, including repurchase agreements	$	16,139		$	11,528
Impact of 100 bps decrease in interest rates:
In dollars	$	1,313		$	921
As a percentage of total debt obligations at fair value	8.1		%	8.0		%

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; however, we do consider hedging for planned cross border transactions.

103

The following table summarizes the net assets in non-U.S. currencies at September 30, 2016 and December 31, 2015:

	September 30, 2016				December 31, 2015				2016 vs. 2015 % change in exchange rate per USD
				Exchange rate				Exchange rate
(in millions of U.S. dollars, except for percentages)	Net Assets			per USD	Net Assets			per USD
British pound sterling (GBP)	$	2,719		1.2972	$	1,200		1.4736	(12.0	)%
Canadian dollar (CAD)	2,309			0.7618	507			0.7226	5.4	%
Euro (EUR)	1,785			1.1235	749			1.0862	3.4	%
Australian dollar (AUD)	1,360			0.7664	373			0.7286	5.2	%
Brazilian real (BRL)	1,246			0.3065	682			0.2525	21.4	%
Korean Won (KRW) (x100)	712			0.0908	613			0.0851	6.7	%
Mexican peso (MXN)	643			0.0516	683			0.0581	(11.2	)%
Japanese yen (JPY)	529			0.0099	493			0.0083	19.3	%
Thailand Baht (THB)	440			0.0289	377			0.0278	4.0	%
Other foreign currencies	1,739			various	1,189			various	NM
Net assets denominated in foreign currencies	$	13,482			$	6,866
As a percentage of total net assets	27.9		%		23.6		%
Pre-tax impact on Shareholders' equity of a hypothetical 10 percent strengthening of the U.S. dollar	$	1,223			$	624

⁽¹⁾ At September 30, 2016, net assets denominated in foreign currencies comprised approximately 41% tangible assets and 59% intangible assets, primarily goodwill. The increase in foreign denominated net assets is due to the Chubb Corp acquisition.

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 life underwriting income and net income. 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.

Net income is directly impacted by changes in benefit reserves calculated in connection with reinsurance of variable annuity guarantees, primarily GMDB and GLB. In addition, 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 established for a GLB reinsurance contract represents the difference between the fair value of the contract and the benefit reserves. Benefit reserves and FVL calculations are 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.

The tables below are estimates of the sensitivities to instantaneous changes in economic inputs (e.g., equity shock, interest rate shock etc.) or actuarial assumptions at September 30, 2016 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:

• No changes to the benefit ratio used to establish benefit reserves at September 30, 2016

• Equity shocks impact all global equity markets equally

• Our liabilities are sensitive to global equity markets in the following proportions: 70 percent—80 percent U.S. equity, 10 percent—20 percent international equity ex-Japan, up to 10 percent Japan equity.

• Our current hedge portfolio is sensitive to global equity markets in the following proportions: 100 percent U.S. equity.

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

104

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

• 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: up to 10 percent short-term rates (maturing in less than 5 years), 20 percent—30 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 (AA-rated credit spreads are a proxy for both our own credit spreads and the credit spreads of the ceding insurers) impacts the rate used to discount cash flows in the fair value model.

• The hedge sensitivity is from September 30, 2016 market levels.

• The sensitivities are not directly additive because changes in one factor will affect the sensitivity to changes in other factors. The sensitivities do not scale linearly and may be proportionally greater for larger movements in the market factors. The sensitivities may also vary due to foreign exchange rate fluctuations. The calculation of the FVL is based on internal models that include assumptions regarding future policyholder behavior, including lapse, annuitization, and asset allocation. These assumptions impact both the absolute level of the FVL as well as the sensitivities to changes in market factors shown below. Actual sensitivity of our net income may differ from those disclosed in the tables below due to differences between short-term market movements and management judgment regarding the long-term assumptions implicit in our benefit ratios. Furthermore, the sensitivities below could vary by multiples of the sensitivities in the tables below.

• In addition, the tables below do not reflect the expected quarterly run rate of net income generated by the variable annuity guarantee reinsurance portfolio if markets remain unchanged during the period. All else equal, if markets remain unchanged during the period, the Gross FVL will increase, resulting in a realized loss. The realized loss occurs primarily because, during the period, we will collect premium on the full population while only 60 percent of that population has become eligible to annuitize and generate a claim (since approximately 40 percent of policies are not eligible to annuitize until after September 30, 2016). This increases the Gross FVL because future premiums are lower by the amount collected in the quarter, and also because future claims are discounted for a shorter period. We refer to this increase in Gross FVL as “timing effect”. The unfavorable impact of timing effect on our Gross FVL in a quarter is not reflected in the sensitivity tables below. For this reason, when using the tables below to estimate the sensitivity of Gross FVL in the third quarter to various changes, it is necessary to assume an additional $5 million to $45 million increase in Gross FVL and realized losses. However, the impact to Net income is substantially mitigated because the majority of this realized loss is offset by the positive quarterly run rate of Life underwriting income generated by the variable annuity guarantee reinsurance portfolio if markets remain unchanged during the period. Note that both the timing effect and the quarterly run rate of Life underwriting income change over time as the book ages.

105

Interest Rate Shock		Worldwide Equity Shock
(in millions of U.S. dollars)		+10%			Flat			-10%			-20%			-30%			-40%
+100 bps	(Increase)/decrease in Gross FVL	$	566		$	338		$	46		$	(305	)	$	(714	)	$	(1,172	)
	Increase/(decrease) in hedge value	(127		)	—			127			254			381			508
	Increase/(decrease) in net income	$	439		$	338		$	173		$	(51	)	$	(333	)	$	(664	)
Flat	(Increase)/decrease in Gross FVL	$	270		$	—		$	(334	)	$	(727	)	$	(1,175	)	$	(1,661	)
	Increase/(decrease) in hedge value	(127		)	—			127			254			381			508
	Increase/(decrease) in net income	$	143		$	—		$	(207	)	$	(473	)	$	(794	)	$	(1,153	)
-100 bps	(Increase)/decrease in Gross FVL	$	(91	)	$	(399	)	$	(773	)	$	(1,202	)	$	(1,677	)	$	(2,179	)
	Increase/(decrease) in hedge value	(127		)	—			127			254			381			508
	Increase/(decrease) in net income	$	(218	)	$	(399	)	$	(646	)	$	(948	)	$	(1,296	)	$	(1,671	)
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 Gross FVL		$	82		$	(92	)	$	(1	)	$	1		$	(14	)	$	12
Increase/(decrease) in hedge value		—			—			—			—			—			—
Increase/(decrease) in net income		$	82		$	(92	)	$	(1	)	$	1		$	(14	)	$	12
Sensitivities to Actuarial Assumptions								Mortality
(in millions of U.S. dollars)								+20%			+10%			-10%			-20%
(Increase)/decrease in Gross FVL								$	31		$	16		$	(16	)	$	(32	)
Increase/(decrease) in hedge value								—			—			—			—
Increase/(decrease) in net income								$	31		$	16		$	(16	)	$	(32	)
								Lapses
(in millions of U.S. dollars)								+50%			+25%			-25%			-50%
(Increase)/decrease in Gross FVL								$	299		$	164		$	(201	)	$	(432	)
Increase/(decrease) in hedge value								—			—			—			—
Increase/(decrease) in net income								$	299		$	164		$	(201	)	$	(432	)
								Annuitization
(in millions of U.S. dollars)								+50%			+25%			-25%			-50%
(Increase)/decrease in Gross FVL								$	(395	)	$	(218	)	$	281		$	603
Increase/(decrease) in hedge value								—			—			—			—
Increase/(decrease) in net income								$	(395	)	$	(218	)	$	281		$	603

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 September 30, 2016. Based upon that evaluation, which excluded the impact of the acquisition of The Chubb Corporation discussed below, 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 and 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.

106

During the first quarter 2016, we acquired all of the outstanding shares of The Chubb Corporation (Legacy Chubb). For the three and nine months ended September 30, 2016, Legacy Chubb represented approximately 31 percent and 34 percent of consolidated revenues, respectively, and approximately 40 percent and 46 percent of pre-tax income, respectively. At September 30, 2016, Legacy Chubb represented approximately 40 percent of total assets. We currently exclude, and are in the process of working to incorporate, Legacy Chubb in our evaluation of internal controls over financial reporting and related disclosure controls and procedures.

Other than working to incorporate Legacy Chubb as mentioned above, there has been no change in Chubb’s internal controls over financial reporting during the three months ended September 30, 2016 that has materially affected, or is reasonably likely to materially affect, Chubb’s internal controls over financial reporting.

PART II OTHER INFORMATION

ITEM 1. Legal Proceedings

The information required with respect to this item is included in Note 8 g) to the Consolidated Financial Statements which is hereby incorporated by reference.

ITEM 1A. Risk Factors

The following supplements the risk factors that could have a material impact on our results of operations or financial condition as described under "Risk Factors" in Item 1A of Part I of our 2015 Form 10-K.

Political uncertainty in the United Kingdom and the European Union may lead to volatility and/or have an adverse effect on our business, our liquidity and financial condition, and our stock price.

On June 23, 2016, the United Kingdom voted in a national referendum to withdraw from the European Union. The result of the referendum does not legally obligate the United Kingdom to exit the European Union, and it is unclear if or when the United Kingdom will formally serve notice to the European Council of its desire to withdraw, a process that is unprecedented in European Union history, and one that could involve months or years of negotiation to draft and approve a withdrawal agreement in accordance with Article 50 of the Treaty on European Union.

Regardless of any eventual timing or terms of the United Kingdom’s exit from the European Union, the June referendum has created significant political, social, and macroeconomic uncertainty. As a result of this uncertainty, in the immediate wake of the UK referendum, stock exchange indices around the world, and in the United Kingdom in particular, declined significantly. In addition, the pound sterling experienced sharp depreciation following the vote. Refer to Quantitative and Qualitative Disclosures about Market Risk under Part I, Item 3 for additional information on our foreign currency management. Also, within one day of the referendum, Moody’s, Fitch and S&P each downgraded the outlook of the UK government’s bond rating from stable to negative warning that the country’s economic growth and fiscal strength are likely to be lower in the event the United Kingdom exits the European Union.

The possible exit of the United Kingdom (or any other country) from the European Union, the potential withdrawal of Scotland or Northern Ireland from the United Kingdom, or prolonged periods of uncertainty relating to any of these possibilities could result in significant macroeconomic deterioration including, but not limited to, further decreases in global stock exchange indices, increased foreign exchange volatility (in particular a further weakening of the pound sterling and euro against other leading currencies), decreased GDP in the United Kingdom, and a downgrade of the United Kingdom’s sovereign credit rating. In addition, there are increasing concerns that these events could push the United Kingdom, Eurozone, and/or United States into an economic recession any of which, were they to occur, would further destabilize the global financial markets and could have a material adverse effect on our business, financial condition, and results of operations. We have significant operations in the UK and other EU member states. Depending on the final terms of the UK exit, we may be required to reorganize our operations and legal entity structure in the UK and the EU in a manner that could be less efficient and more expensive.

The result of the June referendum has also raised concerns regarding the terms for future UK access to the EU Single Market, which is made up of the 27 other EU member states and, to some extent, Iceland, Liechtenstein, and Norway (together, the European Economic Area or EEA). The rules governing the EU Single Market requires local risks to be underwritten by a local authorized insurer; an EEA authorized insurer or a non-local insurer with the benefit of an EU “passport”. As such, UK insurers, including us, are able to underwrite risks from the UK into EEA member states via a “passport”. In the event that, following the

107

UK’s withdrawal from the EU, UK insurers were unable to access the EU Single Market via a passporting arrangement, a regulatory equivalence regime or other similar arrangement, such insurers may not be able to underwrite risks into EEA member states except through local branches incorporated in the EEA. Such branches might require local authorization, regulatory and prudential supervision, and capital to be deposited. Any change to the terms of the UK’s access to the EU Single Market following the withdrawal of the UK from the EU could have a material adverse effect on our business, financial condition, and results of operations.

In addition, Lloyd’s currently benefits from EU Single Market passporting arrangements, which allow its syndicates andcoverholders to write business in EEA member states. Lloyd’s might not be able to maintain such passporting rights or equivalent rights following the withdrawal of the UK from the EU, which could restrict our ability to write business in the EEA through Lloyd’s syndicates and coverholders and therefore have a material adverse effect on our business, financial condition, and results of operations.

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 September 30, 2016:

Period	Total Number of Shares Purchased(1)	Average Price Paid per Share
July 1 through July 31	19,062	$	129.45
August 1 through August 31	14,002	$	125.61
September 1 through September 30	3,388	$	126.87
Total	36,452	$	127.74

⁽¹⁾  This column includes activity related to the surrender to Chubb of common shares to satisfy tax withholding obligations in connection with the vesting of restricted stock issued to employees and the exercising of options by employees.

ITEM 6. Exhibits

Refer to the Exhibit Index.

108

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)
November 3, 2016	/s/ Evan G. Greenberg
	Evan G. Greenberg
	Chairman, President and Chief Executive Officer
November 3, 2016	/s/ Philip V. Bancroft
	Philip V. Bancroft
	Executive Vice President and Chief Financial Officer

109

		Incorporated by Reference
Exhibit Number	Exhibit Description	Form	Original Number	Date Filed	Filed Herewith
2.1	Agreement and Plan of Merger, by and among ACE Limited, William Investment Holdings Corporation and The Chubb Corporation, dated as of June 30, 2015	8-K	2.1	July 7, 2015
3.1	Articles of Association of the Company, as amended	8-K	3.1	May 20, 2016
3.2	Organizational Regulations of the Company, as amended	8-K	3.1	March 2, 2016
4.1	Articles of Association of the Company, as amended	8-K	4.1	May 20, 2016
4.2	Organizational Regulations of the Company, as amended	8-K	3.1	March 2, 2016
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 September 30, 2016 formatted in XBRL: (i) Consolidated Balance Sheets at September 30, 2016, and December 31, 2015; (ii) Consolidated Statements of Operations and Comprehensive Income for the three and nine months ended September 30, 2016 and 2015; (iii) Consolidated Statements of Shareholders’ Equity for the nine months ended September 30, 2016 and 2015; (iv) Consolidated Statements of Cash Flows for the nine months ended September 30, 2016 and 2015; and (v) Notes to Consolidated Financial Statements				X

110

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: November 3, 2016

/s/ Evan G. Greenberg

Evan G. Greenberg

Chairman, President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, Philip V. Bancroft, 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: November 3, 2016

/s/ Philip V. Bancroft

Philip V. Bancroft

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 September 30, 2016, fully complies with the applicable reporting requirements of Section 13(a) 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.

Dated: November 3, 2016	/s/ Evan G. Greenberg
	Evan G. Greenberg
	Chairman, President 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 September 30, 2016, fully complies with the applicable reporting requirements of Section 13(a) 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.

Dated: November 3, 2016	/s/ Philip V. Bancroft
	Philip V. Bancroft
	Executive Vice President and Chief Financial Officer

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 21, 2016
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Trading Symbol	CB
Entity Registrant Name	Chubb Ltd
Entity Central Index Key	0000896159
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Common Shares Outstanding		465,339,149

XML

Consolidated Balance Sheets - USD ($) $ in Millions		Sep. 30, 2016		Dec. 31, 2015
Investments [Abstract]
Fixed maturities available for sale, at fair value (amortized cost - $78,630 and $43,149) (includes hybrid financial instruments of $5 and $31)		$ 81,358		$ 43,587
Fixed maturities held to maturity, at amortized cost (fair value – $11,366 and $8,552)		10,927		8,430
Equity securities, at fair value (cost – $695 and $441)		803		497
Short-term investments, at fair value and amortized cost		3,548		10,446
Other investments (cost – $4,170 and $2,993)		4,400		3,291
Total investments		101,036		66,251
Cash	[1]	870	[2]	1,775	[3]
Securities lending collateral		1,140		1,046
Accrued investment income		915		513
Insurance and reinsurance balances receivable		8,493		5,323
Reinsurance recoverable on losses and loss expenses		13,448		11,386
Reinsurance recoverable on policy benefits		195		187
Deferred policy acquisition costs		4,238		2,873
Value of business acquired		368		395
Goodwill		15,481		4,796
Other intangible assets		6,991		887
Prepaid reinsurance premiums		2,449		2,082
Deferred tax assets		0		318
Investments in partially-owned insurance companies		665		653
Other assets		5,521		3,821
Total assets		161,810		102,306
Liabilities
Unpaid losses and loss expenses		61,347		37,303
Unearned premiums		15,054		8,439
Future policy benefits		5,010		4,807
Insurance and reinsurance balances payable		4,885		4,270
Securities lending payable		1,141		1,047
Accounts payable, accrued expenses, and other liabilities		9,748		6,205
Deferred tax liabilities		1,418		0
Repurchase agreements		1,406		1,404
Short-term debt		500		0
Long-term debt		12,621		9,389
Trust preferred securities		308		307
Total liabilities		113,438		73,171
Commitments and contingencies
Shareholders’ equity
Common Shares (CHF 24.15 par value; 479,783,864 and 342,832,412 shares issued; 465,286,110 and 324,563,441 shares outstanding)		11,121		7,833
Common Shares in treasury (14,497,754 and 18,268,971 shares)		(1,550)		(1,922)
Additional paid-in capital		15,601		4,481
Retained earnings		22,003		19,478
Accumulated other comprehensive income (loss) (AOCI)		1,197		(735)
Total shareholders’ equity		48,372		29,135
Total liabilities and shareholders’ equity		$ 161,810		$ 102,306

[1] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016 and December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[2] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[3] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

XML

Consolidated Balance Sheets (Parenthetical) $ in Millions	Sep. 30, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares
Statement of Financial Position [Abstract]
Available for sale, at amortized cost	$ 78,630	$ 43,149
Fixed maturities available for sale, hybrid financial instruments	5	31
Held to maturity, at Fair Value	11,366	8,552
Equity securities, at cost	695	441
Other investments, cost	$ 4,170	$ 2,993
Common Shares, shares issued | shares	479,783,864	342,832,412
Common Shares, shares outstanding | shares	465,286,110	324,563,441
Common Shares in treasury, shares | shares	14,497,754	18,268,971

XML

Consolidated Statements Of Operations and Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues
Net premiums written	$ 7,573	$ 4,709	$ 21,207	$ 13,569
Decrease (increase) in unearned premiums	115	10	483	(563)
Net premiums earned	7,688	4,719	21,690	13,006
Net investment income	739	549	2,121	1,662
Net Realized Gains Losses [Abstract]
Other-than-temporary impairment (OTTI) losses gross	(12)	(35)	(99)	(62)
Portion of OTTI losses recognized in other comprehensive income (OCI)	0	5	8	11
Net OTTI losses recognized in income	(12)	(30)	(91)	(51)
Net realized gains (losses) excluding OTTI losses	112	(367)	(419)	(309)
Total net realized gains (losses) (includes $33, $(49), $(117), and $(18) reclassified from AOCI)	100	(397)	(510)	(360)
Total revenues	8,527	4,871	23,301	14,308
Expenses
Losses and loss expenses	4,269	2,643	12,197	7,182
Policy benefits	155	89	427	384
Policy acquisition costs	1,514	771	4,487	2,205
Administrative expenses	772	568	2,373	1,700
Interest expense	152	68	451	207
Other (income) expense	(91)	12	(92)	(61)
Amortization of purchased intangibles	4	51	16	136
Chubb integration expenses	115	9	361	9
Total expenses	6,890	4,211	20,220	11,762
Income before income tax	1,637	660	3,081	2,546
Income tax expense (includes $11, $(4), $16 and $10 on reclassified unrealized gains and losses)	277	132	556	395
Net income	1,360	528	2,525	2,151
Other comprehensive income (loss)
Unrealized appreciation (depreciation)	247	(321)	2,099	(696)
Reclassification adjustment for net realized (gains) losses included in net income	(33)	49	117	18
Unrealized appreciation (Depreciation) after reclassification adjustment	214	(272)	2,216	(678)
Change in:
Cumulative translation adjustment	(124)	(575)	269	(860)
Pension liability	5	3	8	10
Other comprehensive income (loss), before income tax	95	(844)	2,493	(1,528)
Income tax (expense) benefit related to OCI items	(79)	45	(561)	145
Other comprehensive income (loss)	16	(799)	1,932	(1,383)
Comprehensive income (loss)	$ 1,376	$ (271)	$ 4,457	$ 768
Earnings per share
Basic earnings per share	$ 2.90	$ 1.63	$ 5.48	$ 6.60
Diluted earnings per share	$ 2.88	$ 1.62	$ 5.44	$ 6.53
The Chubb Corporation [Member]
Expenses
Chubb integration expenses		$ 9

XML

Consolidated Statements Of Operations and Comprehensive Income Consolidated Statements of Operations and Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Total net realized gains (losses) reclassified from AOCI	$ 33	$ (49)	$ (117)	$ (18)
Income tax expense on reclassified unrealized gains and loses	$ 11	$ (4)	$ 16	$ 10

XML

Consolidated Statements Of Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Common Stock [Member] The Chubb Corporation [Member]	Common shares in treasury [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] The Chubb Corporation [Member]	Retained Earnings [Member]	Accumulated Net Unrealized Investment Gain (Loss) [Member]	Cumulative Translation Adjustment [Member]	Pension Liability Adjustment [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance - beginning of period at Dec. 31, 2014		$ 8,055		$ (1,448)	$ 5,145		$ 16,644	$ 1,851	$ (581)	$ (79)
Shares Issued for Chubb Corp Acquisition		0				$ 0
Dividends declared on Common Shares – par value reduction		(222)
Common Shares repurchased				(734)
Net shares redeemed under employee share-based compensation plans				208	(157)	0
Exercise of stock options					(43)
Share-based compensation expense and other					155
Funding of dividends declared to Retained earnings					(435)
Net income	$ 2,151						2,151
Funding of dividends declared from Additional paid-in capital							435
Dividends declared on Common Shares							(435)
Change in period, before reclassification from AOCI, net of income tax benefit (expense) of $(559) and $102								(594)
Amounts reclassified from AOCI, net of income tax benefit of $16 and $10								28
Change in period, net of income tax benefit (expense) of $(543) and $112								(566)
Change in period, net of income tax benefit (expense) of $(18) and $35									(825)
Change in period, net of income tax expense of nil and $(2)										8
Balance - end of period at Sep. 30, 2015	29,127	7,833		(1,974)	4,665		18,795	1,285	(1,406)	(71)	$ (192)
Balance - beginning of period at Dec. 31, 2015	29,135	7,833		(1,922)	4,481		19,478	874	(1,539)	(70)
Shares Issued for Chubb Corp Acquisition			$ 3,288			11,916
Dividends declared on Common Shares – par value reduction		0
Common Shares repurchased				0
Net shares redeemed under employee share-based compensation plans				372	(365)	$ 323
Exercise of stock options					(44)
Share-based compensation expense and other					250
Funding of dividends declared to Retained earnings					(960)
Net income	2,525						2,525
Funding of dividends declared from Additional paid-in capital							960
Dividends declared on Common Shares							(960)
Change in period, before reclassification from AOCI, net of income tax benefit (expense) of $(559) and $102								1,540
Amounts reclassified from AOCI, net of income tax benefit of $16 and $10								133
Change in period, net of income tax benefit (expense) of $(543) and $112								1,673
Change in period, net of income tax benefit (expense) of $(18) and $35									251
Change in period, net of income tax expense of nil and $(2)										8
Balance - end of period at Sep. 30, 2016	$ 48,372	$ 11,121		$ (1,550)	$ 15,601		$ 22,003	$ 2,547	$ (1,288)	$ (62)	$ 1,197

XML

Consolidated Statements Of Shareholders' Equity (Parenthetical) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Statement Consolidated Statements Of Shareholders Equity [Abstract]
Change in year, before reclassification from AOCI, net of income tax benefit(expense)	$ (559)	$ 102
Income tax benefit (expense) from reclassification of unrealized gains	16	10
Net unrealized appreciation on investments, Change in period, income tax (expense) benefit	(543)	112
Cumulative translation adjustment, Change in period, income tax(expense) benefit	(18)	35
Net income	2,525	2,151
Pension liability adjustment, Change in period, income tax (expense) benefit	$ 0	$ (2)

XML

Consolidated Statements Of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016		Sep. 30, 2015
Cash flows from operating activities
Net income	$ 2,525		$ 2,151
Adjustments to reconcile net income to net cash flows from operating activities
Net realized (gains) losses	510		360
Amortization of premiums/discounts on fixed maturities	558		115
Amortization of UPR related to the Chubb Corp acquisition	1,415		0
Deferred income taxes	(13)		53
Unpaid losses and loss expenses	916		(225)
Unearned premiums	(547)		353
Future policy benefits	129		157
Insurance and reinsurance balances payable	149		219
Accounts payable, accrued expenses, and other liabilities	(109)		(179)
Income taxes payable	308		(8)
Insurance and reinsurance balances receivable	(201)		15
Reinsurance recoverable on losses and loss expenses	(241)		421
Reinsurance recoverable on policy benefits	(6)		20
Deferred policy acquisition costs	(1,316)		(354)
Prepaid reinsurance premiums	33		(182)
Other	(273)		(217)
Net cash flows from operating activities	3,837		2,699
Cash flows from investing activities
Purchases of fixed maturities available for sale	(23,837)		(13,029)
Purchases of to be announced mortgage-backed securities	0		(31)
Purchases of fixed maturities held to maturity	(189)		(39)
Purchases of equity securities	(100)		(122)
Sales of fixed maturities available for sale	13,863		5,202
Sales of to be announced mortgage-backed securities	0		31
Sales of equity securities	963		150
Maturities and redemptions of fixed maturities available for sale	6,936		5,257
Maturities and redemptions of fixed maturities held to maturity	627		552
Net change in short-term investments	11,866		421
Net derivative instruments settlements	(181)		62
Acquisition of subsidiaries (net of cash acquired of $71 and $620)	(14,248)		259
Other	26		(138)
Net cash flows used for investing activities	(4,274)		(1,425)
Cash flows from financing activities
Dividends paid on Common Shares	(851)		(644)
Common Shares repurchased	0		(758)
Proceeds from issuance of long-term debt	0		800
Proceeds from issuance of repurchase agreements	1,457		1,478
Repayment of long-term debt	0		(451)
Repayment of repurchase agreements	(1,455)		(1,477)
Proceeds from share-based compensation plans, including windfall tax benefits	117		89
Policyholder contract deposits	473		351
Policyholder contract withdrawals	(247)		(159)
Other	(4)		(6)
Net cash flows used for financing activities	(510)		(777)
Effect of foreign currency rate changes on cash and cash equivalents	42		(114)
Net (decrease) increase in cash	(905)		383
Cash – beginning of period	1,775	[1],[2]	655	[3]
Cash – end of period	870	[2],[4]	1,038	[3]
Supplemental cash flow information
Taxes paid	360		355
Interest paid	$ 390		$ 188

[1] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[2] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016 and December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[3] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2015 and December 31, 2014, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[4] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

XML

Consolidated Statements of Cash Flows (Parentheticals) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Statement of Cash Flows [Abstract]
Cash Acquired from Acquisition	$ 71	$ 620

XML

General

9 Months Ended

Sep. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

General

General

a) Basis of presentation

On January 14, 2016, we completed the acquisition of The Chubb Corporation (Chubb Corp), creating a global leader in property and casualty insurance. We have changed our name from ACE Limited to Chubb Limited and plan to adopt the Chubb name globally, although some subsidiaries may continue to use ACE as a part of their name.

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. Effective the first quarter of 2016, 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. This reflects our significantly larger and expanded operations subsequent to our acquisition of Chubb Corp. We have also redefined Corporate to include all run-off asbestos and environmental (A&E) exposures, the results of our run-off Brandywine business, the results of Westchester specialty operations for 1996 and prior years, and certain run-off exposures. Prior period amounts of Chubb Limited (i.e., excluding the historical results of Chubb Corp) contained in this report have been adjusted to conform to the new segment presentation. 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 (consisting of normally recurring accruals) 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 of Chubb Corp are included from the acquisition date forward (i.e., after January 14, 2016). 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 2015 Form 10-K.

b) Accounting guidance adopted in 2016

Presentation of Debt Issuance Costs

In April 2015, the Financial Accounting Standard Board (FASB) issued new guidance related to the accounting for debt issuance costs. The new guidance requires presentation of debt issuance costs in the Consolidated balance sheets as a reduction of the carrying amount of the related debt liability instead of as a deferred charge. We retrospectively adopted this guidance effective January 1, 2016 and reclassified $60 million of debt issuance costs from Other assets to Long term debt ($58 million) and Trust preferred securities ($2 million) as of December 31, 2015.

c) Accounting guidance not yet adopted

Revenue from Contracts with Customers

In May 2014, the FASB issued an accounting standard that supersedes most existing revenue recognition guidance. The standard excludes from its scope the accounting for insurance contracts, leases, financial instruments, and certain other agreements that are governed under other GAAP guidance, but could affect the revenue recognition for certain of our claims management and risk control services. The updated guidance requires an entity to recognize revenue as performance obligations are met, in order to reflect the transfer of promised goods or services to customers in an amount that reflects the consideration the entity is entitled to receive for those goods or services. The standard is effective for us in the first quarter of 2018 with early adoption permitted. The adoption of this guidance is not expected to have a material impact on our financial condition or results of operations.

Short-Duration Contracts

In May 2015, the FASB issued guidance that requires additional disclosures for short-duration insurance contracts. New disclosure will be required to provide more information about initial claim estimates and subsequent adjustments to those estimates, the methodologies and judgments used to estimate claims, and the timing, frequency, and severity of claims. The guidance is effective for us beginning with our 2016 annual reporting on Form 10-K. The guidance requires a change in disclosure only and adoption of this guidance will not have an impact on our financial condition or results of operations.

Financial Instruments – Recognition and Measurement of Financial Assets and Financial Liabilities

In January 2016, the FASB issued guidance that affects the recognition, measurement, presentation, and disclosure of financial instruments. The guidance requires equity investments to be measured at fair value with changes in fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee) and an assessment of a valuation allowance on deferred tax assets related to unrealized losses of available for sale debt securities in combination with other deferred tax assets. The standard is effective for us in the first quarter of 2018. We are in the process of evaluating the effect the updated guidance will have on our financial condition and results of operations.

Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments

In June 2016, the FASB issued guidance on the accounting for credit losses of financial instruments that are measured at amortized cost, including held to maturity securities and reinsurance recoverables, by applying an approach based on the current expected credit losses (CECL). The estimate of expected credit losses should consider historical information, current information, as well as reasonable and supportable forecasts, including estimates of prepayments. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset in order to present the net carrying value at the amount expected to be collected on the financial asset on the Consolidated balance sheet.

The guidance also amends the current available for sale (AFS) security other-than-temporary impairment model by requiring an estimate of the expected credit loss (ECL) only when the fair value is below the amortized cost of the asset. The length of time the fair value of an AFS debt security has been below the amortized cost will no longer impact the determination of whether a credit loss exists. The AFS debt security model will also require the use of a valuation allowance.

The standard is effective for us in the first quarter of 2020 with early adoption permitted in the first quarter of 2019. We will be able to assess the effect of adopting this guidance on our financial condition and results of operations closer to the date of adoption.

Stock Compensation

In March 2016, the FASB issued guidance which requires recognition of the excess tax benefits or deficiencies of awards through net income rather than through additional paid in capital. Additionally, entities can elect to account for forfeitures related to share-based payments either as they occur or through an estimation method. If elected, the change to recognize forfeitures as they occur would be adopted using a modified retrospective approach, with a cumulative effect adjustment recorded to retained earnings. The updated guidance is effective for us in the first quarter of 2017 with early adoption permitted. Adoption of this guidance is not expected to have a material impact on our financial condition and results of operations.

Statement of Cash Flows

In August 2016, the FASB issued guidance clarifying the classification of certain cash receipts and cash payments within the statement of cash flows, including distributions received from equity method investments. The guidance requires entities to make an accounting policy election to present cash flows received either in operating cash flows or investing cash flows based on cumulative equity-method earnings or on the nature of the distributions. The updated guidance is effective for us in the first quarter of 2018 with early adoption permitted. The updated guidance should be applied retrospectively, unless it is impracticable to do so, at which point the guidance should be applied prospectively. We are in the process of evaluating the effect the updated guidance will have on our statements of cash flows.

XML

Acquisitions

9 Months Ended

Sep. 30, 2016

Business Combinations [Abstract]

Acquisitions

Acquisitions

The Chubb Corporation

On January 14, 2016, we completed the acquisition of Chubb Corp, a leading provider of middle-market commercial, specialty, surety, and personal insurance for $29.5 billion, comprising $14.3 billion in cash and $15.2 billion in newly-issued stock, based on the Chubb Limited (formerly ACE Limited) closing price on the acquisition date. In addition, we assumed outstanding equity awards to employees and directors with an attributed value of approximately $323 million. The total consideration, including the assumption of equity awards, was $29.8 billion. We financed the cash portion of the transaction through a combination of $9.0 billion sourced from various Chubb Limited and Chubb Corp companies plus $5.3 billionof senior notes, which were issued in November 2015. Refer to Note 7 for additional information on the senior notes.

Upon completion of the merger, each Chubb Corp common share (other than shares held by certain legacy Chubb Corp employee benefit plans) was canceled and converted, in accordance with the procedures set forth in the merger agreement, into the right to receive (i) 0.6019 of a Chubb Limited common share and (ii) $62.93 in cash. In addition, replacement equity awards were issued by Chubb Limited to the holders of Chubb Corp's outstanding equity awards (stock options, restricted stock units, deferred stock units, deferred unit obligations, and performance units).

We believe the Chubb Corp acquisition is highly complementary to our existing business lines, distribution channels, customer segments, and underwriting skills. Chubb Corp has a substantial presence in the U.S. with a broad variety of coverages serving large corporate and upper middle market accounts, middle market and small commercial accounts, and personal lines. Together we are one of the largest commercial insurers in the U.S. Internationally, where legacy ACE is a truly global insurer with extensive presence in 54 countries, Chubb Corp's operations in 25 markets added to our presence and capabilities and positioned us to better pursue important market opportunities globally. The combined company is a leader in a number of global specialty and traditional products such as professional lines, risk management, workers' compensation, accident and health (A&H), and other property and general casualty lines.

The table below details the purchase consideration and preliminary allocation of assets acquired and liabilities assumed. During the second and third quarters of 2016, we reassessed certain components of our preliminary estimates of assets acquired and liabilities assumed, including the net realizable value for Reinsurance recoverables on losses and loss expenses and Insurance and reinsurance balances receivable and certain components of the Deferred tax liabilities, which resulted in an adjustment to our preliminary estimates that increased Goodwill by $85 million. These estimates remain preliminary and are subject to adjustment. While they are not expected to be materially different than those shown, any material adjustments to the estimates will be reflected, retroactively, as of the date of the acquisition.

(in millions, except per share data)
Purchase consideration
Chubb Limited common shares
Chubb Corp common shares outstanding	228
Per share exchange ratio	0.6019
Common shares issued by Chubb Limited	137
Common share price of Chubb Limited at January 14, 2016	$	111.02
Fair value of common shares issued by Chubb Limited to common shareholders of Chubb Corp	$	15,204
Cash consideration
Chubb Corp common shares outstanding	228
Agreed cash price per share paid to common shareholders of Chubb Corp	$	62.93
Cash consideration paid by Chubb Limited to common shareholders of Chubb Corp	$	14,319
Stock-based awards
Fair value of equity awards issued (1)	$	323
Fair value of purchase consideration	$	29,846
Preliminary estimate of assets acquired and (liabilities) assumed
Cash	$	71
Investments	42,967
Accrued investment income	337
Insurance and reinsurance balances receivable	2,981
Reinsurance recoverable on losses and loss expenses	1,645
Indefinite lived intangible assets	2,860
Finite lived intangible assets	4,795
Prepaid reinsurance premiums	280
Other assets	865
Unpaid losses and loss expenses	(22,906		)
Unearned premiums	(7,033		)
Insurance and reinsurance balances payable	(511		)
Accounts payable, accrued expenses, and other liabilities	(1,935		)
Deferred tax liabilities	(1,335		)
Long-term debt	(3,765		)
Total identifiable net assets acquired	19,316
Goodwill	10,530
Purchase price	$	29,846

⁽¹⁾  The estimated fair value of the replacement equity awards was $525 million, of which $323 million was attributed to service periods prior to the acquisition and was included in the purchase consideration. Refer to Note 10 for further information on these replacement equity awards.

Direct costs related to the Chubb Corp acquisition were expensed as incurred. Chubb integration expenses were $115 million and $361 million for the three and nine months endedSeptember 30, 2016, respectively, and include all internal and external costs directly related to the integration activities of the Chubb Corp acquisition, consisting primarily of personnel-related expenses, including severance and employee retention and relocation; consulting fees; and advisor fees. Chubb integration expenses were $9 million for both the three and nine months ended September 30, 2015, consisting primarily of consulting and legal fees.

We recognized goodwill of $10.5 billion, attributable to expected growth and profitability, none of which is expected to be deductible for income tax purposes, indefinite lived intangible assets of $2.9 billion and finite lived intangible assets of $4.8 billion, which will be amortized over their estimated useful lives, ranging from one to 24 years. Refer to Note 6 for additional information.

The following table summarizes the results of the acquired Chubb Corp operations since the acquisition date that have been included within our Consolidated statements of operations:

(in millions of U.S. dollars)	Three Months Ended September 30, 2016		January 14, 2016 to September 30, 2016
Total revenues	$	2,656	$	7,888
Net income	$	483	$	1,064

The following table provides supplemental unaudited pro forma consolidated information for the three and nine months endedSeptember 30, 2016 and 2015, as if Chubb Corp had been acquired as of January 1, 2015. The unaudited pro forma consolidated financial statements are presented solely for informational purposes and are not necessarily indicative of the consolidated results of operations that might have been achieved had the transaction been completed as of the date indicated, nor are they meant to be indicative of any anticipated consolidated future results of operations that the combined company will experience after the transaction.

	Three Months Ended				Nine Months Ended
	September 30				September 30
(in millions of U.S. dollars, except per share data)	2016		2015		2016		2015
Total revenues	$	8,521	$	8,314	$	23,758	$	24,387
Net income	$	1,345	$	1,036	$	2,591	$	3,194
Earnings per share
Basic earnings per share	$	2.87	$	2.23	$	5.54	$	6.85
Diluted earnings per share	$	2.85	$	2.21	$	5.50	$	6.78

Total revenues and net income were higher for the three months ended September 30, 2016, compared to the prior year, principally driven by net realized gains in the current year compared to net realized losses last year, primarily in our variable annuity reinsurance business.  This increase was partially offset by merger-related underwriting actions in the current year, including the purchase of additional reinsurance, which lowered net premiums earned.

Total revenues and net income were lower for the nine months endedSeptember 30, 2016, compared to the prior year, primarily reflecting the merger-related underwriting actions in the current year, as noted above, as well as higher net realized losses in the current year, primarily in our variable annuity reinsurance business.

Prior year acquisition

Fireman's Fund Insurance Company High Net Worth Personal Lines Insurance Business in the U.S. (Fireman's Fund)

On April 1, 2015, we acquired the Fireman's Fund Insurance Company high net worth personal lines insurance business in the U.S., which included the renewal rights for new and existing business and reinsurance of all existing reserves for $365 million in cash. We acquired assets with a fair value of $753 million, consisting primarily of cash of $629 million and insurance and reinsurance balances receivable of $124 million. We assumed liabilities with a fair value of $863 million, consisting primarily of unpaid losses and loss expenses of $417 million and unearned premiums of $428 million. This acquisition generated $196 million of goodwill, attributable to expected growth and profitability, all of which is expected to be deductible for income tax purposes, and other intangible assets of $278 million, primarily related to renewal rights, based on Chubb’s purchase price allocation. During the third quarter of 2015, we recorded an adjustment to the valuation of our other intangible assets. The acquisition expanded our position in the high net worth personal lines insurers in the U.S. The Fireman’s Fund business was integrated into our existing high net worth personal lines business, offering a broad range of coverage including homeowners, automobile, umbrella and excess liability, collectibles, and yachts. Goodwill and other intangible assets arising from this acquisition are included in our North America Personal P&C Insurance segment.

The consolidated financial statements include results of acquired businesses from the acquisition dates.

XML

Investments

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Investments

Investments

a) Fixed maturities

September 30, 2016	Amortized Cost		Gross Unrealized Appreciation		Gross Unrealized Depreciation			Fair Value		OTTI Recognized in AOCI
(in millions of U.S. dollars)
Available for sale
U.S. Treasury and agency	$	2,626	$	84	$	(2	)	$	2,708	$	—
Foreign	21,499		1,057		(48		)	22,508		(9		)
Corporate securities	22,860		977		(64		)	23,773		(9		)
Mortgage-backed securities	13,083		383		(5		)	13,461		(1		)
States, municipalities, and political subdivisions	18,562		357		(11		)	18,908		—
	$	78,630	$	2,858	$	(130	)	$	81,358	$	(19	)
Held to maturity
U.S. Treasury and agency	$	709	$	26	$	—		$	735	$	—
Foreign	694		45		—			739		—
Corporate securities	2,852		131		(2		)	2,981		—
Mortgage-backed securities	1,507		72		—			1,579		—
States, municipalities, and political subdivisions	5,165		167		—			5,332		—
	$	10,927	$	441	$	(2	)	$	11,366	$	—

December 31, 2015	Amortized Cost		Gross Unrealized Appreciation		Gross Unrealized Depreciation			Fair Value		OTTI Recognized in AOCI
(in millions of U.S. dollars)
Available for sale
U.S. Treasury and agency	$	2,481	$	52	$	(5	)	$	2,528	$	—
Foreign	13,190		468		(213		)	13,445		(13		)
Corporate securities	15,028		355		(454		)	14,929		(28		)
Mortgage-backed securities	9,827		183		(52		)	9,958		(1		)
States, municipalities, and political subdivisions	2,623		110		(6		)	2,727		—
	$	43,149	$	1,168	$	(730	)	$	43,587	$	(42	)
Held to maturity
U.S. Treasury and agency	$	733	$	13	$	(1	)	$	745	$	—
Foreign	763		30		(8		)	785		—
Corporate securities	3,054		57		(55		)	3,056		—
Mortgage-backed securities	1,707		38		(2		)	1,743		—
States, municipalities, and political subdivisions	2,173		52		(2		)	2,223		—
	$	8,430	$	190	$	(68	)	$	8,552	$	—

As discussed in Note 3c), if a credit loss is incurred on an impaired fixed maturity, an OTTI is considered to have occurred and the portion of the impairment not related to credit losses (non-credit OTTI) is recognized in OCI. Included in the “OTTI Recognized in AOCI” columns above are the cumulative amounts of non-credit OTTI recognized in OCI adjusted for subsequent sales, maturities, and redemptions. OTTI recognized in AOCI does not include the impact of subsequent changes in fair value of the related securities. In periods subsequent to a recognition of OTTI in OCI, changes in the fair value of the related fixed maturities are reflected in Unrealized appreciation (depreciation) in the Consolidated statement of shareholders’ equity. For the three and nine months endedSeptember 30, 2016, $13 million and $57 million, respectively, of net unrealized appreciation related to such securities is included in OCI. For the three and nine months endedSeptember 30, 2015, $4 million and nil, respectively, of net unrealized depreciation related to such securities is included in OCI. At September 30, 2016, AOCI included cumulative net unrealized appreciation of $7 million related to securities remaining in the investment portfolio for which a non-credit OTTI was recognized. At December 31, 2015, AOCI included cumulative net unrealized depreciation of $35 million related to securities remaining in the investment portfolio for which a non-credit OTTI was recognized.

Mortgage-backed securities (MBS) issued by U.S. government agencies are combined with all other to be announced mortgage derivatives held (refer to Note 8 c) (iv)) and are included in the category, “Mortgage-backed securities”. Approximately 81 percent of the total mortgage-backed securities at both September 30, 2016 and December 31, 2015 are represented by investments in U.S. government agency bonds. The remainder of the mortgage exposure consists of collateralized mortgage obligations and non-government mortgage-backed securities, the majority of which provide a planned structure for principal and interest payments and carry a rating of AAA by the major credit rating agencies.

The following table presents fixed maturities by contractual maturity:

			September 30				December 31
			2016				2015
(in millions of U.S. dollars)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Available for sale
Due in 1 year or less	$	3,402	$	3,413	$	1,856	$	1,865
Due after 1 year through 5 years	25,152		25,865		14,936		15,104
Due after 5 years through 10 years	26,702		27,645		12,258		12,173
Due after 10 years	10,291		10,974		4,272		4,487
	65,547		67,897		33,322		33,629
Mortgage-backed securities	13,083		13,461		9,827		9,958
	$	78,630	$	81,358	$	43,149	$	43,587
Held to maturity
Due in 1 year or less	$	458	$	462	$	492	$	495
Due after 1 year through 5 years	2,716		2,807		2,443		2,517
Due after 5 years through 10 years	2,815		2,919		2,292		2,313
Due after 10 years	3,431		3,599		1,496		1,484
	9,420		9,787		6,723		6,809
Mortgage-backed securities	1,507		1,579		1,707		1,743
	$	10,927	$	11,366	$	8,430	$	8,552

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) Equity securities

	September 30			December 31
(in millions of U.S. dollars)	2016			2015
Cost	$	695		$	441
Gross unrealized appreciation	122			74
Gross unrealized depreciation	(14		)	(18		)
Fair value	$	803		$	497

c) Net realized gains (losses)

In accordance with guidance related to the recognition and presentation of OTTI, when an impairment related to a fixed maturity has occurred, OTTI is required to be recorded in Net income if management has the intent to sell the security or it is more likely than not that we will be required to sell the security before the recovery of its amortized cost. Further, in cases where we do not intend to sell the security and it is more likely than not that we will not be required to sell the security, Chubb must evaluate the security to determine the portion of the impairment, if any, related to credit losses. If a credit loss is incurred, an OTTI is considered to have occurred and any portion of the OTTI related to credit losses must be reflected in Net income while the portion of OTTI related to all other factors is recognized in OCI. For fixed maturities held to maturity, OTTI recognized in OCI is accreted from AOCI to the amortized cost of the fixed maturity prospectively over the remaining term of the securities.

Each quarter, securities in an unrealized loss position (impaired securities), including fixed maturities, securities lending collateral, equity securities, and other investments, are reviewed to identify impaired securities to be specifically evaluated for a potential OTTI.

For all non-fixed maturities, OTTI is evaluated based on the following:

• the amount of time a security has been in a loss position and the magnitude of the loss position;

• the period in which cost is expected to be recovered, if at all, based on various criteria including economic conditions and other issuer-specific developments; and

• Our ability and intent to hold the security to the expected recovery period.

As a general rule, we also consider that equity securities in an unrealized loss position for twelve consecutive months are other than temporarily impaired. For mutual funds included in equity securities in our consolidated balance sheet, we employ analysis similar to fixed maturities, when applicable.

We review each fixed maturity in an unrealized loss position to assess whether the security is a candidate for credit loss. Specifically, we consider credit rating, market price, and issuer-specific financial information, among other factors, to assess the likelihood of collection of all principal and interest as contractually due. Securities for which we determine that credit loss is likely are subjected to further analysis to estimate the credit loss recognized in Net income, if any. In general, credit loss recognized in Net income equals the difference between the security’s amortized cost and the net present value of its projected future cash flows discounted at the effective interest rate implicit in the debt security. All significant assumptions used in determining credit losses are subject to change as market conditions evolve.

Projected cash flows for corporate securities (principally senior unsecured bonds) are driven primarily by assumptions regarding probability of default and also the timing and amount of recoveries associated with defaults. Chubb developed projected cash flows for corporate securities using market observable data, issuer-specific information, and credit ratings. We use historical default data by Moody’s Investors Service (Moody’s) rating category to calculate a 1-in-100 year probability of default, which results in a default assumption in excess of the historical mean default rate. Consistent with management's approach, Chubb assumed a 32 percent recovery rate (the par value of a defaulted security that will be recovered) across all rating categories rather than using Moody's historical mean recovery rate of 42 percent. We believe that use of a default assumption in excess of the historical mean is conservative in light of current market conditions.

For the three and nine months endedSeptember 30, 2016, credit losses recognized in Net income for corporate securities were $4 million and $28 million, respectively. For the three and nine months endedSeptember 30, 2015, credit losses recognized in Net income for corporate securities were $14 million and $23 million, respectively.

For mortgage-backed securities, credit impairment is assessed using a cash flow model that estimates the cash flows on the underlying mortgages, using the security-specific collateral and transaction structure. The model estimates cash flows from the underlying mortgage loans and distributes those cash flows to various tranches of securities, considering the transaction structure and any subordination and credit enhancements that exist in that structure. The cash flow model incorporates actual cash flows on the mortgage-backed securities through the current period and then projects the remaining cash flows using a number of assumptions, including default rates, prepayment rates, and loss severity rates (the par value of a defaulted security that will not be recovered) on foreclosed properties.

For both the three and nine months ended September 30, 2016, there were $1 million in credit losses recognized in Net income for mortgage-backed securities. For the three and nine months ended September 30, 2015, there were no credit losses recognized in Net income for mortgage-backed securities.

The following table presents the Net realized gains (losses) and the losses included in Net realized gains (losses) and OCI as a result of conditions which caused us to conclude the decline in fair value of certain investments was “other-than-temporary”:

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Fixed maturities:
OTTI on fixed maturities, gross	$	(7	)	$	(31	)	$	(85	)	$	(57	)
OTTI on fixed maturities recognized in OCI (pre-tax)	—			5			8			11
OTTI on fixed maturities, net	(7		)	(26		)	(77		)	(46		)
Gross realized gains excluding OTTI	47			19			149			91
Gross realized losses excluding OTTI	(13		)	(44		)	(228		)	(95		)
Total fixed maturities	27			(51		)	(156		)	(50		)
Equity securities:
OTTI on equity securities	(1		)	(3		)	(7		)	(4		)
Gross realized gains excluding OTTI	19			10			63			43
Gross realized losses excluding OTTI	(12		)	(5		)	(17		)	(7		)
Total equity securities	6			2			39			32
OTTI on other investments	(4		)	(1		)	(7		)	(1		)
Foreign exchange gains (losses)	29			(2		)	46			(73		)
Investment and embedded derivative instruments	1			(22		)	(85		)	6
Fair value adjustments on insurance derivative	89			(396		)	(270		)	(337		)
S&P put options and futures	(45		)	83			(88		)	69
Other derivative instruments	3			(9		)	1			(10		)
Other	(6		)	(1		)	10			4
Net realized gains (losses)	$	100		$	(397	)	$	(510	)	$	(360	)

The following table presents a roll-forward of pre-tax credit losses related to fixed maturities for which a portion of OTTI was recognized in OCI:

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Balance of credit losses related to securities still held – beginning of period	$	51		$	23		$	53		$	28
Additions where no OTTI was previously recorded	4			8			16			15
Additions where an OTTI was previously recorded	1			6			13			8
Reductions for securities sold during the period	(11		)	(5		)	(37		)	(19		)
Balance of credit losses related to securities still held – end of period	$	45		$	32		$	45		$	32

d) Gross unrealized loss

At September 30, 2016, there were 3,376 fixed maturities out of a total of 31,902 fixed maturities in an unrealized loss position. The largest single unrealized loss in the fixed maturities was $2 million. There were 73 equity securities out of a total of 326 equity securities in an unrealized loss position. The largest single unrealized loss in the equity securities was $3 million. Fixed maturities in an unrealized loss position at September 30, 2016, comprised both investment grade and below investment grade securities for which fair value declined primarily due to widening credit spreads since the date of purchase.

The following tables present, for all securities in an unrealized loss position (including securities on loan), the aggregate fair value and gross unrealized loss by length of time the security has continuously been in an unrealized loss position:

	0 – 12 Months					Over 12 Months					Total
September 30, 2016	Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury and agency	$	436	$	(2	)	$	—	$	—		$	436	$	(2	)
Foreign	1,899		(20		)	409		(28		)	2,308		(48		)
Corporate securities	1,559		(21		)	750		(45		)	2,309		(66		)
Mortgage-backed securities	1,039		(3		)	292		(2		)	1,331		(5		)
States, municipalities, and political subdivisions	2,807		(10		)	50		(1		)	2,857		(11		)
Total fixed maturities	7,740		(56		)	1,501		(76		)	9,241		(132		)
Equity securities	133		(14		)	—		—			133		(14		)
Other investments	233		(27		)	—		—			233		(27		)
Total	$	8,106	$	(97	)	$	1,501	$	(76	)	$	9,607	$	(173	)

	0 – 12 Months					Over 12 Months					Total
December 31, 2015	Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury and agency	$	996	$	(5	)	$	153	$	(1	)	$	1,149	$	(6	)
Foreign	3,953		(148		)	436		(73		)	4,389		(221		)
Corporate securities	7,518		(371		)	738		(138		)	8,256		(509		)
Mortgage-backed securities	3,399		(42		)	516		(12		)	3,915		(54		)
States, municipalities, and political subdivisions	556		(6		)	42		(2		)	598		(8		)
Total fixed maturities	16,422		(572		)	1,885		(226		)	18,307		(798		)
Equity securities	131		(18		)	—		—			131		(18		)
Other investments	210		(11		)	—		—			210		(11		)
Total	$	16,763	$	(601	)	$	1,885	$	(226	)	$	18,648	$	(827	)

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 also 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 also have investments in segregated portfolios primarily to provide collateral or guarantees for LOC and derivative transactions. Included in restricted assets at September 30, 2016 and December 31, 2015, are investments, primarily fixed maturities, totaling $19.4 billion and $16.9 billion, respectively, and cash of $162 million and $110 million, respectively.

The following table presents the components of restricted assets:

	September 30		December 31
(in millions of U.S. dollars)	2016		2015
Trust funds	$	13,093	$	11,862
Deposits with non-U.S. regulatory authorities	2,338		2,075
Deposits with U.S. regulatory authorities	2,232		1,242
Assets pledged under repurchase agreements	1,464		1,459
Other pledged assets	433		392
	$	19,560	$	17,030

XML

Fair value measurements

9 Months Ended

Sep. 30, 2016

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. Accordingly, transfers between levels within the valuation hierarchy occur when there are significant changes to the inputs, such as increases or decreases in market activity, changes to the availability of current prices, changes to the transparency to underlying inputs, and whether there are significant variances in quoted prices. Transfers in and/or out of any level are assumed to occur at the end of the period.

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, 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), which 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 net asset values or equivalent (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 are classified within the valuation hierarchy on the same basis as other equity securities and fixed maturities. Other investments for which pricing is unobservable are classified within Level 3.

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 are based on market valuations and are 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 generally maintain positions in other derivative instruments including exchange-traded equity futures contracts and option contracts designed to limit exposure to a severe equity market decline, which would cause an increase in expected claims and, therefore, an increase in reserves for our guaranteed minimum death benefits (GMDB) and guaranteed living benefits (GLB) reinsurance business. Our position in exchange-traded equity futures contracts is classified within Level 1. At September 30, 2016, we held no positions in option contracts on equity market indices. 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) and guaranteed minimum accumulation benefits (GMAB) associated with variable annuity contracts. GLB’s are recorded in Accounts payable, accrued expenses, and other liabilities and Future policy benefits 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.

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.

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 in line with data received from other ceding companies adjusted, as appropriate, with industry estimates. 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. Because of the significant use of unobservable inputs including policyholder behavior, GLB reinsurance is classified within Level 3. For the three and nine months endedSeptember 30, 2016 and 2015, no material technical 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 2015 Form 10-K.

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

September 30, 2016	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury and agency	$	2,155	$	553	$	—	$	2,708
Foreign	—		22,405		103		22,508
Corporate securities	—		23,167		606		23,773
Mortgage-backed securities	—		13,415		46		13,461
States, municipalities, and political subdivisions	—		18,908		—		18,908
	2,155		78,448		755		81,358
Equity securities	766		—		37		803
Short-term investments	2,127		1,359		62		3,548
Other investments (1)	404		250		223		877
Securities lending collateral	—		1,140		—		1,140
Investment derivative instruments	20		—		—		20
Other derivative instruments	14		—		—		14
Separate account assets	1,743		97		—		1,840
Total assets measured at fair value (1)	$	7,229	$	81,294	$	1,077	$	89,600
Liabilities:
Investment derivative instruments	$	34	$	—	$	—	$	34
Other derivative instruments	—		—		8		8
GLB (2)	—		—		883		883
Total liabilities measured at fair value	$	34	$	—	$	891	$	925

⁽¹⁾  Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $3,498 million and other investments of $25 million at September 30, 2016 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. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

December 31, 2015	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury and agency	$	1,712	$	816	$	—	$	2,528
Foreign	—		13,388		57		13,445
Corporate securities	—		14,755		174		14,929
Mortgage-backed securities	—		9,905		53		9,958
States, municipalities, and political subdivisions	—		2,727		—		2,727
	1,712		41,591		284		43,587
Equity securities	481		—		16		497
Short-term investments	7,171		3,275		—		10,446
Other investments (1)	347		230		212		789
Securities lending collateral	—		1,046		—		1,046
Investment derivative instruments	12		—		—		12
Separate account assets	1,464		88		—		1,552
Total assets measured at fair value (1)	$	11,187	$	46,230	$	512	$	57,929
Liabilities:
Investment derivative instruments	$	13	$	—	$	—	$	13
Other derivative instruments	4		—		6		10
GLB (2)	—		—		609		609
Total liabilities measured at fair value	$	17	$	—	$	615	$	632

⁽¹⁾  Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $2,477 million and other investments of $25 million at December 31, 2015 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. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

There were no transfers between Level 1 and Level 2 for the three and nine months endedSeptember 30, 2016 and 2015.

Fair value of alternative investments

Alternative investments include investment funds, limited partnerships, and partially-owned investment companies measured at fair value using 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:

				September 30				December 31
	Expected Liquidation Period of Underlying Assets			2016				2015
(in millions of U.S. dollars)		Fair Value		Maximum Future Funding Commitments		Fair Value		Maximum Future Funding Commitments
Financial	5 to 9 Years	$	549	$	188	$	300	$	105
Real Assets	3 to 7 Years	520		274		474		140
Distressed	5 to 9 Years	463		196		261		218
Private Credit	3 to 7 Years	241		294		265		209
Traditional	3 to 9 Years	1,458		999		895		152
Vintage	1 to 2 Years	23		14		13		—
Investment funds	Not Applicable	244		—		269		—
		$	3,498	$	1,965	$	2,477	$	824

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	made before 2002 and where the funds’ commitment periods had already expired

Investment funds

Chubb’s 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 range between 5 and 120 days. Chubb can redeem its investment funds without consent from the investment fund managers.

Level 3 financial instruments

The fair values of assets and liabilities measured at fair value using significant unobservable inputs (Level 3) consist of various inputs and assumptions that management makes when determining fair value. Management analyzes changes in fair value measurements classified within Level 3 by comparing pricing and returns of our investments to benchmarks, including month-over-month movements, investment credit spreads, interest rate movements, and credit quality of securities.

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.

(in millions of U.S. dollars, except for percentages)	Fair Value				Valuation Technique	Significant Unobservable Inputs	Ranges
	September 30, 2016		December 31, 2015
GLB(1)	$	883	$	609	Actuarial model	Lapse rate	1% – 30%
						Annuitization rate	0% – 55%

⁽¹⁾  Discussion of the most significant inputs used in the fair value measurement of GLB and the sensitivity of those assumptions is included within Note 4 a) Guaranteed living benefits.

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	Available-for-Sale Debt Securities									Equity securities			Short-term investments		Other investments			Other derivative instruments			GLB(1)
September 30, 2016	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	87		$	281		$	49		$	37		$	50	$	216		$	10		$	971
Transfers into Level 3	—			—			—			—			—		—			—			—
Change in Net Unrealized Gains (Losses) included in OCI	(1		)	6			—			3			—		4			—			—
Net Realized Gains/Losses	—			(4		)	—			—			—		—			—			(88		)
Purchases	20			348			—			—			12		8			—			—
Sales	(2		)	(18		)	(3		)	(3		)	—		—			—			—
Settlements	(1		)	(7		)	—			—			—		(5		)	(2		)	—
Balance–End of Period	$	103		$	606		$	46		$	37		$	62	$	223		$	8		$	883
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	—		$	(4	)	$	—		$	—		$	—	$	—		$	—		$	(88	)

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

	Assets																	Liabilities
Three Months Ended	Available-for-Sale Debt Securities									Equity securities			Other investments			Other derivative instruments		GLB(1)
September 30, 2015	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	56		$	167		$	55		$	2		$	214		$	3	$	347
Transfers into Level 3	1			2			—			—			—			—		—
Change in Net Unrealized Gains (Losses) included in OCI	1			1			—			2			(7		)	—		—
Net Realized Gains/Losses	(1		)	(1		)	—			(1		)	—			4		397
Purchases	—			22			—			1			5			—		—
Sales	—			(5		)	(1		)	—			—			—		—
Settlements	(4		)	(3		)	—			—			(3		)	—		—
Balance–End of Period	$	53		$	183		$	54		$	4		$	209		$	7	$	744
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(1	)	$	—		$	—		$	(1	)	$	—		$	4	$	397

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $615 million at June 30, 2015, which includes a fair value derivative adjustment of $744 million and $347 million, respectively.

															Assets			Liabilities
Nine Months Ended	Available-for-Sale Debt Securities									Equity securities			Short-term investments		Other investments			Other derivative instruments			GLB(1)
September 30, 2016	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	57		$	174		$	53		$	16		$	—	$	212		$	6		$	609
Transfers into Level 3	9			18			—			—			—		—			—			—
Transfers out of Level 3	(2		)	—			—			—			—		—			—			—
Change in Net Unrealized Gains (Losses) included in OCI	8			17			—			2			—		4			—			—
Net Realized Gains/Losses	(6		)	(12		)	—			1			—		—			2			274
Purchases (2)	52			472			1			23			62		22			2			—
Sales	(10		)	(48		)	(8		)	(5		)	—		—			—			—
Settlements	(5		)	(15		)	—			—			—		(15		)	(2		)	—
Balance–End of Period	$	103		$	606		$	46		$	37		$	62	$	223		$	8		$	883
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(5	)	$	(11	)	$	—		$	—		$	—	$	—		$	2		$	274

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

⁽²⁾  Includes acquired invested assets as a result of the Chubb Corp acquisition.

	Assets																	Liabilities
Nine Months Ended	Available-for-Sale Debt Securities												Other investments			Other derivative instruments		GLB(1)
September 30, 2015	Foreign			Corporate securities			MBS			Equity securities
(in millions of U.S. dollars)
Balance–Beginning of Period	$	22		$	187		$	15		$	2		$	204		$	4	$	406
Transfers into Level 3	29			15			—			—			—			—		—
Change in Net Unrealized Gains (Losses) included in OCI	(1		)	1			—			2			(7		)	—		—
Net Realized Gains/Losses	(1		)	(4		)	—			(2		)	—			3		338
Purchases	9			38			41			2			21			—		—
Sales	(1		)	(10		)	(1		)	—			—			—		—
Settlements	(4		)	(44		)	(1		)	—			(9		)	—		—
Balance–End of Period	$	53		$	183		$	54		$	4		$	209		$	7	$	744
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(1	)	$	(2	)	$	—		$	(2	)	$	—		$	3	$	338

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $663 million at December 31, 2014, which includes a fair value derivative adjustment of $744 million and $406 million, respectively.

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.

Investments in partially-owned insurance companies

Fair values for investments in partially-owned insurance companies are based on Chubb’s share of the net assets based on the financial statements provided by those companies and are excluded from the valuation hierarchy tables below.

Short- and long-term debt, repurchase agreements, and trust preferred securities

Where practical, fair values for short-term debt, long-term debt, repurchase agreements, and trust preferred securities are estimated using discounted cash flow calculations based principally on observable inputs including incremental borrowing rates, which reflect Chubb’s credit rating, for similar types of borrowings with maturities consistent with those remaining for the debt being valued.

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

September 30, 2016	Fair Value								Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury and agency	$	628	$	107	$	—	$	735	$	709
Foreign	—		739		—		739		694
Corporate securities	—		2,968		13		2,981		2,852
Mortgage-backed securities	—		1,579		—		1,579		1,507
States, municipalities, and political subdivisions	—		5,332		—		5,332		5,165
Total assets	$	628	$	10,725	$	13	$	11,366	$	10,927
Liabilities:
Repurchase agreements	$	—	$	1,406	$	—	$	1,406	$	1,406
Short-term debt	—		508		—		508		500
Long-term debt	—		13,762		—		13,762		12,621
Trust preferred securities	—		463		—		463		308
Total liabilities	$	—	$	16,139	$	—	$	16,139	$	14,835

December 31, 2015	Fair Value								Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury and agency	$	583	$	162	$	—	$	745	$	733
Foreign	—		785		—		785		763
Corporate securities	—		3,042		14		3,056		3,054
Mortgage-backed securities	—		1,743		—		1,743		1,707
States, municipalities, and political subdivisions	—		2,223		—		2,223		2,173
Total assets	$	583	$	7,955	$	14	$	8,552	$	8,430
Liabilities:
Repurchase agreements	$	—	$	1,404	$	—	$	1,404	$	1,404
Long-term debt	—		9,678		—		9,678		9,389
Trust preferred securities	—		446		—		446		307
Total liabilities	$	—	$	11,528	$	—	$	11,528	$	11,100

XML

Assumed life reinsurance programs involving minimum benefit guarantees under annuity contracts

9 Months Ended

Sep. 30, 2016

Reinsurance Disclosures [Abstract]

Assumed life reinsurance programs involving minimum benefit guarantees under annuity contracts

Assumed life reinsurance programs involving minimum benefit guarantees under variable annuity contracts

The following table presents income and expenses relating to GMDB and GLB reinsurance. GLBs include GMIBs as well as some GMABs originating in Japan.

	Three Months Ended					Nine Months Ended
	September 30					September 30
(in millions of U.S. dollars)	2016		2015			2016			2015
GMDB
Net premiums earned	$	15	$	15		$	42		$	47
Policy benefits and other reserve adjustments	$	11	$	5		$	34		$	25
GLB
Net premiums earned	$	28	$	30		$	88		$	92
Policy benefits and other reserve adjustments	9		15			24			34
Net realized gains (losses)	86		(397		)	(285		)	(338		)
Loss recognized in Net income	$	105	$	(382	)	$	(221	)	$	(280	)
Less: Net cash received	15		20			57			74
Net (increase) decrease in liability	$	90	$	(402	)	$	(278	)	$	(354	)

Net realized gains (losses) in the table above include gains (losses) related to foreign exchange and fair value adjustments on insurance derivatives and exclude gains (losses) on S&P put options and futures used to partially offset the risk in the GLB reinsurance portfolio. Refer to Note 8 for additional information.

The reported liability for GMDB reinsurance was $119 million and $117 million at September 30, 2016 and December 31, 2015, respectively. At September 30, 2016 and December 31, 2015, the reported liability for GLB reinsurance was $1.2 billion and $888 million, respectively, which includes a fair value derivative adjustment of $883 million and $609 million, respectively. Reported liabilities for both GMDB and GLB reinsurance are determined using internal valuation models. Such valuations require considerable judgment and are subject to significant uncertainty. The valuation of these products is subject to fluctuations arising from, among other factors, changes in interest rates, changes in equity markets, changes in credit markets, changes in the allocation of the investments underlying annuitants’ account values, and assumptions regarding future policyholder behavior. These models and the related assumptions are regularly reviewed by management and enhanced, as appropriate, based upon improvements in modeling assumptions and availability of updated information, such as market conditions and demographics of in-force annuities.

XML

Goodwill and other intangible assets Goodwill and other intangible assets

9 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets [Text Block]

Goodwill and Other intangible assets

At September 30, 2016 and December 31, 2015, Goodwill was $15.5 billion and $4.8 billion, respectively, and Other intangible assets were $7.0 billion and $887 million, respectively. The increases in Goodwill and Other intangible assets reflect the goodwill and intangible assets recorded in connection with the Chubb Corp acquisition.

The following table presents a roll-forward of Goodwill by segment for the nine months endedSeptember 30, 2016:

(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		Chubb Consolidated
Balance at December 31, 2015	$	1,203	$	196	$	134	$	2,078	$	365	$	820	$	4,796
Acquisition of Chubb Corp	5,711		2,025		—		2,794		—		—		10,530
Foreign exchange revaluation	43		13		—		98		—		1		155
Balance at September 30, 2016	$	6,957	$	2,234	$	134	$	4,970	$	365	$	821	$	15,481

The preliminary purchase price allocation to intangible assets recorded in connection with the Chubb Corp acquisition and their related useful lives are as follows:

(in millions of U.S. dollars)	Preliminary purchase price allocation		Estimated useful life
Definite life
Unearned premium reserves (UPR) intangible asset	$	1,550	1 year
Agency distribution relationships and renewal rights	3,150		24 years
Internally developed technology	95		3 years
Indefinite life
Trademarks	2,800		Indefinite
Licenses	50		Indefinite
Syndicate capacity	10		Indefinite
Total identified intangible assets	$	7,655

Additionally, in connection with the Chubb Corp acquisition, we recorded an increase to Unpaid losses and loss expenses acquired as part of Chubb Corp of $715 million to adjust the carrying value of Chubb Corp's historical unpaid losses and loss expenses to fair value as of the acquisition date. The estimated fair value consists of the present value of the expected net unpaid loss and loss adjustment expenses payments adjusted for an estimated risk margin. The expected cash flows are discounted at a risk free rate. The estimated risk margin varies based on the inherent risks associated with each type of reserve. This fair value adjustment was recorded within Unpaid losses and loss expenses on the Consolidated balance sheets and will amortize through Amortization of purchased intangibles on the Consolidated statements of operations over a range of 5 to 17 years, based on the estimated payout patterns of unpaid loss and loss expenses as of the acquisition date.

The following table presents, as of September 30, 2016, the expected estimated pre-tax amortization expense (benefit), at current foreign currency exchange rates, for the fourth quarter of 2016 and the next five years, related to purchased intangibles as well as the fair value adjustment to Unpaid losses and loss expenses described above:

	Associated with the Chubb Corp Acquisition
For the Year Ending December 31 (in millions of U.S. dollars)	Agency distribution relationships and renewal rights		Internally developed technology		Fair value adjustment to Unpaid losses and loss expenses			Total			Other intangible assets		Total Amortization of purchased intangibles
Fourth quarter of 2016	$	33	$	8	$	(61	)	$	(20	)	$	23	$	3
2017	296		32		(161		)	167			85		252
2018	324		32		(102		)	254			73		327
2019	281		—		(62		)	219			66		285
2020	240		—		(36		)	204			59		263
2021	217		—		(20		)	197			53		250
Total	$	1,391	$	72	$	(442	)	$	1,021		$	359	$	1,380

The expected amortization, at current foreign currency exchange rates, for the remainder of the UPR intangible asset which amortizes through Policy acquisition costs on the Consolidated statements of operations is $144 million for the fourth quarter of 2016.

XML

Debt

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Debt Disclosure [Text Block]

Debt

In connection with the Chubb Corp acquisition, Chubb INA Holdings Inc. (formerly ACE INA Holdings Inc.) assumed $3.3 billion par value outstanding debt of Chubb Corp, fair valued at $3.8 billion at the acquisition date. Chubb INA Holdings Inc. (Chubb INA) assumed Chubb Corp's rights, duties and obligations and Chubb Limited fully and unconditionally guarantees Chubb INA's payment obligations under these debts. Additionally, during the first quarter of 2016 we adopted new guidance that required debt issuance costs be recorded as a reduction of the carrying amount of the related debt liability (these costs were previously included in Other assets on the Consolidated balance sheets). The debt balances at December 31, 2015 have been updated to reflect the adoption of this guidance.

	September 30		December 31
(in millions of U.S. dollars)	2016		2015		Early Redemption Option
Repurchase agreements (weighted average interest rate of 0.8% in 2016 and 0.6% in 2015)	$	1,406	$	1,404	None
Short-term debt
Chubb INA senior notes:
$500 million 5.7% due February 2017	$	500	$	—	Make-whole premium plus 0.20%
Long-term debt
Chubb INA senior notes:
$500 million 5.7% due February 2017	$	—	$	500	Make-whole premium plus 0.20%
$300 million 5.8% due March 2018	300		299		Make-whole premium plus 0.35%
$600 million 5.75% due May 2018	641		—		Make-whole premium plus 0.30%
$100 million 6.6% due August 2018	109		—		None
$500 million 5.9% due June 2019	498		497		Make-whole premium plus 0.40%
$1,300 million 2.3% due November 2020	1,294		1,294		Make-whole premium plus 0.15%
$1,000 million 2.875% due November 2022	994		994		Make-whole premium plus 0.20%
$475 million 2.7% due March 2023	471		471		Make-whole premium plus 0.10%
$700 million 3.35% due May 2024	694		694		Make-whole premium plus 0.15%
$800 million 3.15% due March 2025	794		794		Make-whole premium plus 0.15%
$1,500 million 3.35% due May 2026	1,488		1,487		Make-whole premium plus 0.20%
$100 million 8.875% due August 2029	100		100		None
$200 million 6.8% due November 2031	258		—		Make-whole premium plus 0.25%
$300 million 6.7% due May 2036	297		297		Make-whole premium plus 0.20%
$800 million 6.0% due May 2037	982		—		Make-whole premium plus 0.20%
$600 million 6.5% due May 2038	778		—		Make-whole premium plus 0.30%
$475 million 4.15% due March 2043	469		469		Make-whole premium plus 0.15%
$1,500 million 4.35% due November 2045	1,482		1,482		Make-whole premium plus 0.25%
Chubb INA $1,000 million 6.375% capital securities due March 2067(1)	961		—		Make-whole premium plus 0.25%-0.50%
Other long-term debt (2.75% to 7.1% due December 2019 to September 2020)	11		11		None
Total long-term debt	$	12,621	$	9,389
Trust preferred securities
Chubb INA capital securities due April 2030	$	308	$	307	Redemption prices(2)

⁽¹⁾  6.375% interest rate through April 14, 2017; interest rate equal to three month LIBOR rate plus 2.25% thereafter.

⁽²⁾  Redemption price is equal to accrued and unpaid interest to the redemption date plus the greater of (i) 100 percent of the principal amount thereof, or (ii) sum of present value of scheduled payments of principal and interest on the debentures from the redemption date to April 1, 2030.

Certain of Chubb INA's senior notes and capital securities are redeemable at any time at Chubb INA's option subject to the provisions described in the table above. A "make-whole" premium is the present value of the remaining principal and interest discounted at the applicable U.S. Treasury rate. The senior notes and capital securities are also redeemable at par plus accrued and unpaid interest in the event of certain changes in tax law.

We have outstanding $1.0 billion of unsecured junior subordinated capital securities at September 30, 2016, which were assumed by Chubb INA in connection with the Chubb Corp acquisition. The capital securities will become due on April 15, 2037, the scheduled maturity date, but only to the extent that we have received sufficient net proceeds from the sale of certain qualifying capital securities. We must use commercially reasonable efforts, subject to certain market disruption events, to sell enough qualifying capital securities to permit repayment of the capital securities on the scheduled maturity date or as soon thereafter as possible. Any remaining outstanding principal amount will be due on March 29, 2067, the final maturity date. The capital securities bear interest at a rate of 6.375 percent through April 14, 2017. Thereafter, the capital securities will bear interest at a rate equal to the three-month LIBOR rate plus 2.25 percent. Subject to certain conditions, we have the right to defer the payment of interest on the capital securities for a period not exceeding ten consecutive years. During any such period, interest will continue to accrue and we generally may not declare or pay any dividends on or purchase any shares of our capital stock.

In connection with the issuance of capital securities, a replacement capital covenant was entered into in which we agreed that we will not repay, redeem, or purchase capital securities before March 29, 2047, unless, subject to certain limitations, we have received proceeds from the sale of specified replacement capital securities. The replacement capital covenant is not intended for the benefit of holders of the capital securities and may not be enforced by them. The replacement capital covenant is for the benefit of holders of one or more designated series of Chubb's indebtedness, which initially was and continues to be its 6.8 percent debentures due November 2031.

Subject to the replacement capital covenant, the $1.0 billion capital securities may be redeemed, in whole or in part, at any time (i) on or after April 15, 2017 at a redemption price equal to the principal amount plus any accrued interest or (ii) prior to April 15, 2017 at a redemption price equal to the greater of (1) the principal amount or (2) a make-whole premium, in each case plus any accrued interest.

XML

Commitments, contingencies, and guarantees

9 Months Ended

Sep. 30, 2016

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 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, including GMIB and GMAB, 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 GMAB risk is triggered if, at contract maturity, the contract holder’s account value is less than a guaranteed minimum value. The GLB reinsurance product meets the definition of a derivative instrument. Benefit reserves in respect of GLBs are classified as Future policy benefits (FPB) while the fair value derivative adjustment is classified within AP. Chubb also generally maintains positions in exchange-traded equity futures contracts and options on equity market indices to limit equity exposure in the GMDB and GLB blocks of business. At September 30, 2016, we held no positions in option contracts on equity market indices.

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:

				September 30, 2016							December 31, 2015
	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)	$	10	$	(32	)	$	2,025	$	7	$	(11	)	$	1,029
Cross-currency swaps	OA / (AP)	—		—			95		—		—			95
Options/Futures contracts on bonds and equities	OA / (AP)	10		(2		)	1,353		5		(2		)	751
Convertible securities (1)	FM AFS / ES	5		—			8		31		—			40
		$	25	$	(34	)	$	3,481	$	43	$	(13	)	$	1,915
Other derivative instruments
Futures contracts on equities(2)	OA / (AP)	$	4	$	—		$	1,275	$	—	$	(4	)	$	1,197
Other	OA / (AP)	10		(8		)	243		—		(6		)	15
		$	14	$	(8	)	$	1,518	$	—	$	(10	)	$	1,212
GLB(3)	(AP) / (FPB)	$	—	$	(1,166	)	$	1,436	$	—	$	(888	)	$	1,155

⁽¹⁾  Includes fair value of embedded derivatives.

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

⁽³⁾  Includes both future policy benefits reserves and fair value derivative adjustment. Refer to Note 5 for additional information. 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 September 30, 2016 and December 31, 2015, derivative assets of $9 million and $1 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. 

b) 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. AtSeptember 30, 2016and December 31, 2015, our securities lending collateral was$1,140million and$1,046million, respectively, and our securities lending payable,reflecting our obligation to return the collateral plus interest, was$1,141million and$1,047million, respectively. 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
September 30, 2016	Overnight and Continuous
(in millions of U.S. dollars)
Collateral held under securities lending agreements:
Cash	$	449
U.S. Treasury and agency	53
Foreign	324
Corporate securities	4
Mortgage-backed securities	38
Equity securities	272
	$	1,140
Gross amount of recognized liability for securities lending payable	$	1,141
Difference (1)	$	(1	)

⁽¹⁾  The carrying value of the securities lending collateral held is $1 million lower than the securities lending payable due to accrued interest recorded in the securities lending payable.

AtSeptember 30, 2016and December 31, 2015, our repurchase agreement obligations of$1,406 millionand$1,404 million, respectively, 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 Equity securities 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
September 30, 2016	Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
(in millions of U.S. dollars)
Collateral pledged under repurchase agreements:
U.S. Treasury and agency	$	5	$	—	$	232	$	237
Mortgage-backed securities	408		484		335		1,227
	$	413	$	484	$	567	$	1,464
Gross amount of recognized liabilities for repurchase agreements							$	1,406
Difference(1)							$	58

⁽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.

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

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Investment and embedded derivative instruments
Foreign currency forward contracts	$	(10	)	$	15		$	(30	)	$	30
All other futures contracts and options	8			(23		)	(63		)	(10		)
Convertible securities(1)	3			(14		)	8			(14		)
Total investment and embedded derivative instruments	$	1		$	(22	)	$	(85	)	$	6
GLB and other derivative instruments
GLB(2)	$	89		$	(396	)	$	(270	)	$	(337	)
Futures contracts on equities(3)	(45		)	84			(88		)	71
Options on equity market indices(3)	—			(1		)	—			(2		)
Other	3			(9		)	1			(10		)
Total GLB and other derivative instruments	$	47		$	(322	)	$	(357	)	$	(278	)
	$	48		$	(344	)	$	(442	)	$	(272	)

⁽¹⁾  Includes embedded derivatives.

⁽²⁾  Excludes foreign exchange gains (losses) related to GLB.

⁽³⁾  Related to GMDB and GLB blocks of business.

c) Derivative instrument objectives

(i) Foreign currency exposure management

A foreign currency forward contract (forward) is an agreement between participants to exchange specific foreign 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 reserves for GMDB and 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 the 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.

Another use for option contracts is to limit exposure to a severe equity market decline, which would cause an increase in expected claims and therefore, an increase in reserves for GMDB and GLB reinsurance business.

The price of an option is influenced by the underlying security, 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.

Cross-currency swaps

Cross-currency swaps are agreements under which two counterparties exchange interest payments and principal denominated in different currencies at a future date.  We use cross-currency swaps to reduce the foreign currency and interest rate risk by converting cash flows back into local currency.  We invest in foreign currency denominated investments to improve credit diversification and also to obtain better duration matching to our liabilities that is limited in the local currency market.

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. Also included within Other are certain life insurance products that meet the definition of a derivative instrument for accounting purposes. 

(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 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. Premiums received under the reinsurance treaties are classified as premium. Expected losses allocated to premiums received are classified as Future policy benefits and valued similar to GMDB reinsurance. Other changes in fair value, principally arising from changes in expected losses allocated to expected future premiums, are classified as Net realized gains (losses). 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 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. We believe this presentation provides the most meaningful disclosure of changes in the underlying risk within the GLB reinsurance programs for a given reporting period.

d) Fixed maturities

At September 30, 2016, we have commitments to purchase fixed income securities of $788 million over the next several years.

e) Other investments

At September 30, 2016, included in Other investments in the consolidated balance sheet are investments in limited partnerships and partially-owned investment companies with a carrying value of $3.3 billion. In connection with these investments, we have commitments that may require funding of up to $2.0 billion over the next several years.

f) Taxation

In September, the IRS completed its examination of one of our subsidiary’s federal tax returns for the 2010-2012 tax years.  No material adjustments resulted from this examination. At September 30, 2016, $17 million of unrecognized tax benefits remains 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 of taxing authorities. With few exceptions, Chubb is no longer subject to state and local or non-U.S. income tax examinations for years before 2006.

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.

XML

Shareholders' equity

9 Months Ended

Sep. 30, 2016

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 consolidated financial statements. Under Swiss corporate law, dividends, including distributions through a reduction in par value (par value reduction) or from legal reserves, must be stated in Swiss francs though dividend payments are made by Chubb in U.S. dollars. At September 30, 2016, our Common Shares had a par value of CHF 24.15 per share.

At our May 2014 annual general meeting, our shareholders approved an annual dividend for the following year of $2.60 per share, payable in four quarterly installments of $0.65 per share after the annual general meeting in the form of a distribution by way of a par value reduction.

At our May 2015 annual general meeting, our shareholders approved an annual dividend for the following year of up to $2.68 per share, which was paid in four quarterly installments of $0.67 per share at dates determined by the Board of Directors (Board) after the annual general meeting by way of a distribution from capital contribution reserves, transferred to free reserves for payment.

At our May 2016 annual general meeting, our shareholders approved an annual dividend for the following year of up to $2.76 per share, expected to be paid in four quarterly installments of $0.69 per share after the annual general meeting by way of distribution from capital contribution reserves, transferred to free reserves for payment. The Board will determine the record and payment dates at which the annual dividend may be paid until the date of the 2017 annual general meeting, and is authorized to abstain from distributing a dividend at their discretion.

The following table presents dividend distributions per Common Share in Swiss francs (CHF) and U.S. dollars (USD):

	Three Months Ended						Nine Months Ended
	September 30						September 30
	2016			2015			2016			2015
	CHF	USD		CHF	USD		CHF	USD		CHF	USD
Dividends – par value reduction	—	$	—	—	$	—	—	$	—	0.62	$	0.65
Dividends – distributed from capital contribution reserves	0.67	0.69		0.65	0.67		2.01	2.05		1.27	1.34
Total dividend distributions per common share	0.67	$	0.69	0.65	$	0.67	2.01	$	2.05	1.89	$	1.99

Common Shares in treasury are used principally for issuance upon the exercise of employee stock options, grants of restricted stock, and purchases under the Employee Stock Purchase Plan (ESPP). At September 30, 2016, 14,497,754 Common Shares remain in treasury after net shares redeemed under employee share-based compensation plans.

Chubb Limited securities repurchase authorization

In November 2014, the Board authorized a share repurchase program of $1.5 billion of Chubb's Common Shares for the period January 1, 2015 through December 31, 2015. For the three and nine months ended September 30, 2015, Chubb repurchased nil and $734 million (6,677,663 Common Shares), respectively. There are no outstanding repurchase authorizations subsequent to December 31, 2015.

XML

Share-based compensation

9 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-based compensation

Share-based compensation

The ACE Limited 2004 Long-Term Incentive Plan (the 2004 LTIP) permitted 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 vesting period, which is also the requisite service period. On February 25, 2016, Chubb granted 1,926,842 stock options with a weighted-average grant date fair value of $21.52 each. The fair value of the options issued is estimated on the grant date using the Black-Scholes option pricing model.

The 2004 LTIP also permitted 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 stock awards comprise target awards which have four installments that vest annually based on tangible book value (shareholders' equity less goodwill and intangible assets) per share growth compared to a defined group of peer companies, and premium awards, which are earned only if tangible book value per share growth over the cumulative 4-year period after the grant of the associated target awards exceeds a higher threshold compared to our peer group. The restricted stock is granted at market close price on the grant date. On February 25, 2016, Chubb granted 1,119,686 service-based restricted stock awards, 337,581 service-based restricted stock units, and 452,820 performance-based stock awards to employees and officers with a grant date fair value of $118.39 each. Each restricted stock unit represents our obligation to deliver to the holder one Common Share upon vesting.

In connection with the Chubb Corp acquisition, we assumed outstanding equity awards consisting of service-based restricted stock units, performance-based restricted stock units, and stock options issued by Chubb Corporation to employees and directors with a fair value of approximately $525 million, of which $323 million is attributed to purchase consideration for the acquisition. These awards were generally granted with a 3-year vesting period, and the stock options generally have a 10-year term.

In May 2016, our shareholders approved the Chubb Limited 2016 Long-Term Incentive Plan (the 2016 LTIP), which replaced both the 2004 LTIP and The Chubb Corporation Long-Term Incentive Plan (2014). The 2016 LTIP is substantially similar to the 2004 LTIP in its operation and the types of awards that may be granted.

Under the 2016 LTIP, 19,500,000 Common Shares were authorized to be issued, in addition to any shares that have not been delivered pursuant to the 2004 LTIP and remain available for grant pursuant to the 2004 LTIP, including any shares covered by awards granted under the 2004 LTIP that are forfeited, expire, or are canceled after the effective date of the 2016 LTIP without delivery of shares or which result in the forfeiture of the shares back to Chubb.

XML

Postretirement benefits Postretirement benefits

9 Months Ended

Sep. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Compensation and Employee Benefit Plans [Text Block]

Postretirement benefits

We maintain non-contributory defined benefit pension plans and other postretirement plans that cover certain employees located in the U.S., Europe, Asia, Canada, and Mexico. All underlying plans are subject to periodic actuarial valuations by qualified actuarial firms using actuarial models to calculate the expense and liability for each plan. Components of the funded status of the pension and other postretirement benefit plans are included in Accounts payable, accrued expenses, and other liabilities in the consolidated balance sheets.

Chubb provides postretirement benefits to eligible employees and their dependents through various defined contribution plans and defined benefit plans sponsored by Chubb. With the acquisition, Chubb assumed the outstanding pension obligations of legacy Chubb Corp, which consisted of several non-contributory defined benefit pension plans covering substantially all its employees.

We also assumed legacy Chubb Corp other postretirement benefits plans, principally health care and life insurance, to retired employees, their beneficiaries, and covered dependents. Health care coverage is contributory. Retiree contributions vary based upon retiree’s age, type of coverage, and years of service requirements. Life insurance coverage is non-contributory. Chubb funds a portion of the health care benefits obligation where such funding can be accomplished on a tax-effective basis. Benefits are paid as covered expenses are incurred.

As part of purchase accounting, Chubb eliminated legacy Chubb Corp’s postretirement benefit costs not yet recognized in Net income that were recorded in Accumulated other comprehensive income at the time of the acquisition. In addition, Chubb conformed the accounting policies for the acquired plans of legacy Chubb Corp to the accounting policies of Chubb, including selecting the applicable discount rates using specific spot rates along a yield curve determined by the projected cash flows assumptions. This resulted in a lower overall discount rate used to determine the benefit obligation and therefore increased that obligation at the date of the acquisition.

At the date of the acquisition of Chubb Corp, we assumed the following postretirement benefit plan assets and obligations:

	Pension Benefits									Other Postretirement Benefits
January 14, 2016	U.S. Plans			Non-U.S. Plans			Total			U.S. Plans			Non-U.S. Plans			Total
(in millions of U.S. dollars)
Fair value of plan assets	$	2,473		$	315		$	2,788		$	138		$	—		$	138
Benefit obligations	(3,153		)	(372		)	(3,525		)	(491		)	(15		)	(506		)
Funded status	$	(680	)	$	(57	)	$	(737	)	$	(353	)	$	(15	)	$	(368	)

Chubb’s funding policy is to contribute amounts that meet regulatory requirements plus additional amounts determined based on actuarial valuations, market conditions and other factors. All benefit plans satisfy minimum funding requirements of the Employee Retirement Income Security Act of 1974 (ERISA). 

For the three and nine months endedSeptember 30, 2016, we contributed $24 million and $156 million, respectively, to our U.S. and non-U.S. pension and other postretirement benefits plans. At September 30, 2016, we estimate that we will contribute an additional $8 million for the remainder of 2016. These estimates are subject to change due to contribution decisions that are affected by various factors including our liquidity, market performance and management discretion.

The following tables summarize the components of net periodic benefit costs for our pension and postretirement benefit plans recognized in the Consolidated statements of operations:

Three Months Ended September 30	Pension Benefits									Other Postretirement Benefits
(in millions of U.S. dollars)	U.S. Plans			Non-U.S. Plans			Total			U.S. Plans			Non-U.S. Plans		Total
2016
Net periodic benefit cost:
Service cost	$	20		$	6		$	26		$	4		$	—	$	4
Interest cost	26			8			34			4			—		4
Expected return on plan assets	(42		)	(10		)	(52		)	(3		)	—		(3		)
Amortization of net actuarial loss	—			—			—			—			—		—
Curtailments	(4		)	—			(4		)	—			—		—
Settlements	(1		)	—			(1		)	—			—		—
Net periodic benefit cost	$	(1	)	$	4		$	3		$	5		$	—	$	5
2015
Net periodic benefit cost:
Service cost	$	—		$	2		$	2
Interest cost	—			5			5
Expected return on plan assets	—			(7		)	(7		)
Amortization of net actuarial loss	—			—			—
Net periodic benefit cost	$	—		$	—		$	—

Nine Months Ended September 30	Pension Benefits									Other Postretirement Benefits
(in millions of U.S. dollars)	U.S. Plans			Non-U.S. Plans			Total			U.S. Plans			Non-U.S. Plans		Total
2016
Net periodic benefit cost:
Service cost	$	57		$	15		$	72		$	8		$	1	$	9
Interest cost	80			24			104			13			—		13
Expected return on plan assets	(121		)	(30		)	(151		)	(7		)	—		(7		)
Amortization of net actuarial loss	—			2			2			—			—		—
Curtailments	(4		)	—			(4		)	—			—		—
Settlements	(1		)	—			(1		)	—			—		—
Net periodic benefit cost	$	11		$	11		$	22		$	14		$	1	$	15
2015
Net periodic benefit cost:
Service cost	$	—		$	5		$	5
Interest cost	—			15			15
Expected return on plan assets	—			(21		)	(21		)
Amortization of net actuarial loss	—			2			2
Net periodic benefit cost	$	—		$	1		$	1

The weighted-average assumptions used to determine net pension and other postretirement benefit costs were as follows:

	Pension Benefits				Other Postretirement Benefits
	U.S. Plans		Non-U.S. Plans		U.S. Plans		Non-U.S. Plans
September 30, 2016
Discount rate	4.28	%	3.74	%	4.41	%	4.30	%
Rate of compensation increase	4.00	%	3.40	%	N/A		N/A
Expected long-term rate of return on plan assets	7.00	%	4.90	%	7.00	%	N/A
December 31, 2015
Discount rate	N/A		3.51	%	N/A		N/A
Rate of compensation increase	N/A		3.09	%	N/A		N/A
Expected long-term rate of return on plan assets	N/A		4.81	%	N/A		N/A

XML

Segment information

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Segment information

Segment information

Effective the first quarter of 2016, we are reporting our financial results within 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. We have also redefined Corporate to include all run-off asbestos and environmental (A&E) exposures, the results of run-off Brandywine business, the results of Westchester specialty operations for 1996 and prior years and certain other run-off exposures. All legacy ACE prior period amounts (i.e., legacy Chubb Corp prior period results are not included in the prior period amounts in the tables below) have been adjusted to conform to the new segment presentation.

• The North America Commercial P&C Insurance segment includes the business written by Chubb divisions that provide property and casualty (P&C) insurance and services to large, middle market and small commercial businesses in the U.S., Bermuda and Canada. These divisions write a variety of coverages, including traditional commercial property, marine, general casualty, workers’ compensation, package policies, and risk management; specialty categories such as professional lines, marine and construction risk, environmental and cyber risk, excess casualty, as well as group accident and health (A&H) insurance. This segment includes our North American Major Accounts and Specialty Insurance (principally large corporate accounts and wholesale business), and the Commercial Insurance divisions (principally middle market and small commercial accounts).

• The North America Personal P&C Insurance segment includes the business written by Chubb’s North America Personal Risk Services division, which comprises Chubb high net worth personal lines business and ACE Private Risk Services, with operations in U.S. and Canada. This segment provides affluent and high net worth individuals and families with homeowners, automobile, valuables, umbrella and recreational marine insurance and services.

• The North America Agricultural Insurance segment includes the business written by Rain and Hail Insurance Service, Inc. which provides comprehensive multiple peril crop and crop-hail insurance, and Chubb Agribusiness, which offers farm and ranch property as well as specialty P&C coverages, including commercial agriculture products.

• The Overseas General Insurance segment includes the business written by two Chubb divisions that provide P&C insurance and services in the 51 countries outside of North America where the company operates.  Chubb International provides commercial P&C traditional and specialty lines serving large corporations, middle market and small customers, A&H and traditional and specialty personal lines through retail brokers, agents and other channels locally around the world. Chubb Global Markets provides commercial P&C excess and surplus lines and A&H through wholesale brokers in the London market and through Lloyd’s.  These divisions write a variety of coverages, including traditional commercial property and casualty, specialty categories such as financial lines, marine, energy, aviation, political risk and construction risk, as well as group A&H and traditional and specialty personal lines. 

• The Global Reinsurance segment primarily includes the reinsurance business written by Chubb Tempest Re as well as the legacy Chubb U.K. Assumed Reinsurance business, which is active, and the legacy Chubb Corp run-off Reinsurance business.

• The Life Insurance segment includes the business written by Chubb Life, Chubb Tempest Life Re and Combined Insurance’s North America operations.

Corporate primarily includes loss and loss expenses of asbestos and environmental (A&E) run-off liabilities, and the results of our non-insurance companies including Chubb Limited, Chubb Group Management and Holdings Ltd, and Chubb INA Holdings, Inc. Our exposure to A&E claims principally arises out of liabilities acquired when we purchased Westchester Specialty in 1998, CIGNA’s P&C business in 1999, legacy Chubb Corp run-off business in 2016, and certain other run-off exposures.

In addition, revenue and expenses managed at the corporate level, including realized gains and losses, interest expense, the non-operating income of our partially-owned entities, and income taxes are reported within Corporate. Chubb integration expenses and other merger-related expenses (both included in Chubb integration expenses in the consolidated statements of operations) are also reported within Corporate. Chubb integration expenses are one-time costs that are directly attributable to the achievement of the annualized savings, including employee severance, third-party consulting fees, and systems integration expenses. Other merger-related expenses are one-time costs directly attributable to the merger, including rebranding, employee retention costs and other professional and legal fees related to the Chubb Corp acquisition. These items will not be allocated to the segment level as they are one-time in nature and are not related to the ongoing business activities of the segment. The Chief Executive Officer does not manage segment results or allocate resources to segments when considering these costs and they are therefore excluded from our definition of segment income. Therefore, the segment income statement will only include underwriting income, net investment income, 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. Beginning with the third quarter of 2016, segment income also included amortization of purchased intangibles related to business combination intangible assets acquired by the segment and other purchase accounting related intangible assets, including agency relationships, renewal rights, and client lists. These costs were previously included in Corporate. The amortization of intangible assets purchased as part of the Chubb Corp acquisition is considered a Corporate cost as these are incurred by the overall company. We determined that this definition of segment income is appropriate and aligns with how the business is managed. The prior periods have been adjusted to conform to the new segment presentation. As we progress through the integration and refine our processes, we may continue to further refine our segments and segment income measures.

For segment reporting purposes, certain items have been presented in a different manner below than in the consolidated financial statements. Management uses underwriting income as the main measure of segment performance. Chubb calculates underwriting income by subtracting Losses and loss expenses, Policy benefits, Policy acquisition costs, and Administrative expenses from Net premiums earned. To calculate segment income, include net investment income, the operating portion of other (income) expense,and amortization of purchased intangibles. For the North America Agricultural Insurance segment, management includes gains and losses on crop derivatives as a component of underwriting income. For example, for the three months ended September 30, 2016, underwriting income in our North America Agricultural Insurance segment was $90 million. This amount includes $3 million of realized gains related to crop derivatives which are reported in Net realized gains (losses) in the Corporate column below.

For the Life Insurance segment, management 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 as components of Life Insurance underwriting income. For example, for the three months ended September 30, 2016, Life underwriting income of $72 million includes Net investment income of $71 million and gains from fair value changes in separate account assets of $22 million. The gains from fair value changes in separate account assets are reported in other (income) expense in the table below.

The following tables present the Statement of Operations by segment:

	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance			Global Reinsurance		Life Insurance			Corporate			Chubb Consolidated
For the Three Months Ended
September 30, 2016
(in millions of U.S. dollars)
Net premiums written	$	3,110	$	1,011	$	849	$	1,940		$	131	$	532		$	—		$	7,573
Net premiums earned	3,086		1,081		819		2,034			156		512			—			7,688
Losses and loss expenses	1,863		594		683		843			49		174			63			4,269
Policy benefits	—		—		—		—			—		155			—			155
Policy acquisition costs	522		229		48		546			42		127			—			1,514
Administrative expenses	275		89		1		261			12		77			57			772
Underwriting income (loss)	426		169		87		384			53		(21		)	(120		)	978
Net investment income (loss)	477		53		5		152			67		71			(86		)	739
Other (income) expense	3		2		—		(6		)	—		(20		)	(70		)	(91		)
Amortization expense (benefit) of purchased intangibles	—		4		7		12			—		1			(20		)	4
Segment income (loss)	900		216		85		530			120		69			(116		)	1,804
Net realized gains including OTTI															100			100
Interest expense															152			152
Chubb integration expenses															115			115
Income tax expense															277			277
Net income (loss)															$	(560	)	$	1,360

	North America Commercial P&C Insurance			North America Personal P&C Insurance		North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Life Insurance		Corporate			Chubb Consolidated
For the Three Months Ended
September 30, 2015
(in millions of U.S. dollars)
Net premiums written	$	1,433		$	278	$	737		$	1,584		$	185		$	492	$	—		$	4,709
Net premiums earned	1,410			272		739			1,615			203			480		—			4,719
Losses and loss expenses	913			179		620			674			20			153		84			2,643
Policy benefits	—			—		—			—			—			89		—			89
Policy acquisition costs	142			13		42			405			52			117		—			771
Administrative expenses	154			36		—			246			12			74		46			568
Underwriting income (loss)	201			44		77			290			119			47		(130		)	648
Net investment income	260			7		5			132			76			66		3			549
Other (income) expense	(3		)	1		(1		)	(6		)	(4		)	48		(23		)	12
Amortization of purchased intangibles	—			31		8			12			—			—		—			51
Segment income (loss)	464			19		75			416			199			65		(104		)	1,134
Net realized gains (losses) including OTTI																	(397		)	(397		)
Interest expense																	68			68
Chubb integration expenses																	9			9
Income tax expense																	132			132
Net income (loss)																	$	(710	)	$	528

	North America Commercial P&C Insurance			North America Personal P&C Insurance		North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Life Insurance			Corporate			Chubb Consolidated
For the Nine Months Ended
September 30, 2016
(in millions of U.S. dollars)
Net premiums written	$	8,657		$	3,113	$	1,288		$	6,012		$	562		$	1,575		$	—		$	21,207
Net premiums earned	9,130			3,245		1,169			6,082			543			1,521			—			21,690
Losses and loss expenses	5,581			1,916		937			2,953			225			498			87			12,197
Policy benefits	—			—		—			—			—			427			—			427
Policy acquisition costs	1,549			747		77			1,586			142			386			—			4,487
Administrative expenses	840			275		(1		)	801			40			226			192			2,373
Underwriting income (loss)	1,160			307		156			742			136			(16		)	(279		)	2,206
Net investment income (loss)	1,371			155		15			445			199			207			(271		)	2,121
Other (income) expense	(6		)	6		—			(16		)	(3		)	(14		)	(59		)	(92		)
Amortization expense (benefit) of purchased intangibles	—			16		22			36			—			2			(60		)	16
Segment income (loss)	2,537			440		149			1,167			338			203			(431		)	4,403
Net realized gains (losses) including OTTI																		(510		)	(510		)
Interest expense																		451			451
Chubb integration expenses																		361			361
Income tax expense																		556			556
Net income (loss)																		$	(2,309	)	$	2,525

	North America Commercial P&C Insurance			North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance			Global Reinsurance			Life Insurance		Corporate			Chubb Consolidated
For the Nine Months Ended
September 30, 2015
(in millions of U.S. dollars)
Net premiums written	$	4,158		$	958	$	1,204	$	5,047		$	719		$	1,483	$	—		$	13,569
Net premiums earned	4,209			687		1,124		4,896			649			1,441		—			13,006
Losses and loss expenses	2,744			446		913		2,304			191			442		142			7,182
Policy benefits	—			—		—		—			—			384		—			384
Policy acquisition costs	403			43		61		1,190			166			342		—			2,205
Administrative expenses	459			89		3		756			37			221		135			1,700
Underwriting income (loss)	603			109		147		646			255			52		(277		)	1,535
Net investment income	780			19		17		409			230			198		9			1,662
Other (income) expense	(5		)	1		1		(12		)	(5		)	32		(73		)	(61		)
Amortization of purchased intangibles	—			63		22		50			—			1		—			136
Segment income (loss)	1,388			64		141		1,017			490			217		(195		)	3,122
Net realized gains (losses) including OTTI																(360		)	(360		)
Interest expense																207			207
Chubb integration expenses																9			9
Income tax expense																395			395
Net income (loss)																$	(1,166	)	$	2,151

Underwriting assets are reviewed in total by management for purposes of decision-making. Other than goodwill and other intangible assets, Chubb does not allocate assets to its segments.

XML

Earnings per share

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Earnings per share

Earnings per share

	Three Months Ended				Nine Months Ended
	September 30				September 30
(in millions of U.S. dollars, except share and per share data)	2016		2015		2016		2015
Numerator:
Net income	$	1,360	$	528	$	2,525	$	2,151
Denominator:
Denominator for basic earnings per share:
Weighted-average shares outstanding	468,021,093		324,210,936		460,631,794		325,904,502
Denominator for diluted earnings per share:
Share-based compensation plans	3,375,269		2,962,484		3,439,017		3,269,724
Weighted-average shares outstanding and assumed conversions	471,396,362		327,173,420		464,070,811		329,174,226
Basic earnings per share	$	2.90	$	1.63	$	5.48	$	6.60
Diluted earnings per share	$	2.88	$	1.62	$	5.44	$	6.53
Potential anti-dilutive share conversions	1,306,710		1,907,815		1,635,337		1,503,830

Excluded from weighted-average shares outstanding and assumed conversions is the impact of securities that would have been anti-dilutive during the respective periods.

XML

Information provided in connection with outstanding debt of subsidiaries

9 Months Ended

Sep. 30, 2016

Information Provided In Connection With Outstanding Debt Of Subsidiaries [Abstract]

Information provided in connection with outstanding debt of subsidiaries

Information provided in connection with outstanding debt of subsidiaries

In connection with the Chubb Corp acquisition, Chubb INA Holdings Inc., entered into a series of intercompany loans totaling $10 billion involving its parents, Chubb Group Holdings Inc. and Chubb Limited. The weighted-average interest rate is 3.3 percent with fixed interest rates ranging from 2.3 percent to 4.35 percent and various maturity dates from 2021 to 2046.

As part of the acquisition, Chubb INA Holdings Inc. assumed $3.3 billion par value outstanding debt of Chubb Corp, fair valued at $3.8 billion at the acquisition date. Chubb INA Holdings Inc. assumed Chubb Corp's rights, duties and obligations and Chubb Limited fully and unconditionally guarantees Chubb INA Holding Inc.'s payment obligations under these debts.

The following tables present condensed consolidating financial information at September 30, 2016 and December 31, 2015, and for the three and nine months endedSeptember 30, 2016 and 2015 for Chubb Limited (Parent Guarantor) and Chubb INA Holdings Inc. (Subsidiary Issuer). The transactions noted above are reflected in the tables below. The Subsidiary Issuer is an indirect 100 percent-owned subsidiary of the Parent Guarantor. The Parent Guarantor fully and unconditionally guarantees certain of the debt of the Subsidiary Issuer. Condensed consolidating financial information of the Parent Guarantor and Subsidiary Issuer are presented on the equity method of accounting. The revenues and expenses and cash flows of the subsidiaries of the Subsidiary Issuer are presented in the Other Chubb Limited Subsidiaries column on a combined basis.

Condensed Consolidating Balance Sheet at September 30, 2016

(in millions of U.S. dollars)	Chubb Limited (Parent Guarantor)		Chubb INA Holdings Inc. (Subsidiary Issuer)		Other Chubb Limited Subsidiaries		Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
Assets
Investments	$	25	$	812	$	100,199	$	—		$	101,036
Cash (1)	6		2		2,158		(1,296		)	870
Insurance and reinsurance balances receivable	—		—		11,392		(2,899		)	8,493
Reinsurance recoverable on losses and loss expenses	—		—		23,642		(10,194		)	13,448
Reinsurance recoverable on policy benefits	—		—		1,167		(972		)	195
Value of business acquired	—		—		368		—			368
Goodwill and other intangible assets	—		—		22,472		—			22,472
Investments in subsidiaries	38,403		50,316		—		(88,719		)	—
Due from subsidiaries and affiliates, net	11,186		—		—		(11,186		)	—
Other assets	5		366		18,856		(4,299		)	14,928
Total assets	$	49,625	$	51,496	$	180,254	$	(119,565	)	$	161,810
Liabilities
Unpaid losses and loss expenses	$	—	$	—	$	70,882	$	(9,535	)	$	61,347
Unearned premiums	—		—		18,773		(3,719		)	15,054
Future policy benefits	—		—		5,982		(972		)	5,010
Due to subsidiaries and affiliates, net	—		10,996		190		(11,186		)	—
Affiliated notional cash pooling programs (1)	927		369		—		(1,296		)	—
Repurchase agreements	—		—		1,406		—			1,406
Short-term debt	—		500		—		—			500
Long-term debt	—		12,610		11		—			12,621
Trust preferred securities	—		308		—		—			308
Other liabilities	326		1,588		19,416		(4,138		)	17,192
Total liabilities	1,253		26,371		116,660		(30,846		)	113,438
Total shareholders’ equity	48,372		25,125		63,594		(88,719		)	48,372
Total liabilities and shareholders’ equity	$	49,625	$	51,496	$	180,254	$	(119,565	)	$	161,810

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

Condensed Consolidating Balance Sheet at December 31, 2015

(in millions of U.S. dollars)	Chubb Limited (Parent Guarantor)		Chubb INA Holdings Inc. (Subsidiary Issuer)		Other Chubb Limited Subsidiaries		Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
Assets
Investments	$	28	$	7,839	$	58,384	$	—		$	66,251
Cash (1)	1		2		2,743		(971		)	1,775
Insurance and reinsurance balances receivable	—		—		6,075		(752		)	5,323
Reinsurance recoverable on losses and loss expenses	—		—		20,124		(8,738		)	11,386
Reinsurance recoverable on policy benefits	—		—		1,129		(942		)	187
Value of business acquired	—		—		395		—			395
Goodwill and other intangible assets	—		—		5,683		—			5,683
Investments in subsidiaries	29,612		18,386		—		(47,998		)	—
Due from subsidiaries and affiliates, net	644		1,800		—		(2,444		)	—
Other assets	8		457		14,434		(3,593		)	11,306
Total assets	$	30,293	$	28,484	$	108,967	$	(65,438	)	$	102,306
Liabilities
Unpaid losses and loss expenses	$	—	$	—	$	45,490	$	(8,187	)	$	37,303
Unearned premiums	—		—		10,243		(1,804		)	8,439
Future policy benefits	—		—		5,749		(942		)	4,807
Due to subsidiaries and affiliates, net	—		—		2,444		(2,444		)	—
Affiliated notional cash pooling programs (1)	882		89		—		(971		)	—
Repurchase agreements	—		—		1,404		—			1,404
Long-term debt	—		9,378		11		—			9,389
Trust preferred securities	—		307		—		—			307
Other liabilities	276		1,422		12,916		(3,092		)	11,522
Total liabilities	1,158		11,196		78,257		(17,440		)	73,171
Total shareholders’ equity	29,135		17,288		30,710		(47,998		)	29,135
Total liabilities and shareholders’ equity	$	30,293	$	28,484	$	108,967	$	(65,438	)	$	102,306

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

Condensed Consolidating Statements of Operations and Comprehensive Income

For the Three Months Ended September 30, 2016	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	7,573		$	—		$	7,573
Net premiums earned	—			—			7,688			—			7,688
Net investment income	1			2			736			—			739
Equity in earnings of subsidiaries	1,292			748			—			(2,040		)	—
Net realized gains (losses) including OTTI	—			(2		)	102			—			100
Losses and loss expenses	—			—			4,269			—			4,269
Policy benefits	—			—			155			—			155
Policy acquisition costs and administrative expenses	15			12			2,259			—			2,286
Interest (income) expense	(93		)	233			12			—			152
Other (income) expense	(7		)	6			(90		)	—			(91		)
Amortization of purchased intangibles	—			—			4			—			4
Chubb integration expenses	12			16			87			—			115
Income tax expense (benefit)	6			(136		)	407			—			277
Net income	$	1,360		$	617		$	1,423		$	(2,040	)	$	1,360
Comprehensive income	$	1,376		$	627		$	1,439		$	(2,066	)	$	1,376

Condensed Consolidating Statements of Operations and Comprehensive Income

For the Three Months Ended September 30, 2015	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	4,709		$	—		$	4,709
Net premiums earned	—			—			4,719			—			4,719
Net investment income	1			1			547			—			549
Equity in earnings of subsidiaries	488			255			—			(743		)	—
Net realized gains (losses) including OTTI	—			(4		)	(393		)	—			(397		)
Losses and loss expenses	—			—			2,643			—			2,643
Policy benefits	—			—			89			—			89
Policy acquisition costs and administrative expenses	15			7			1,317			—			1,339
Interest (income) expense	(8		)	68			8			—			68
Other (income) expense	(51		)	(5		)	68			—			12
Amortization of purchased intangibles	—			—			51			—			51
Chubb integration expenses	1			8			—			—			9
Income tax expense (benefit)	4			(31		)	159			—			132
Net income	$	528		$	205		$	538		$	(743	)	$	528
Comprehensive income (loss)	$	(271	)	$	(265	)	$	(262	)	$	527		$	(271	)

Condensed Consolidating Statements of Operations and Comprehensive Income

Nine Months Ended September 30, 2016	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	21,207		$	—		$	21,207
Net premiums earned	—			—			21,690			—			21,690
Net investment income	3			9			2,109			—			2,121
Equity in earnings of subsidiaries	2,331			1,803			—			(4,134		)	—
Net realized gains (losses) including OTTI	(1		)	(3		)	(506		)	—			(510		)
Losses and loss expenses	—			—			12,197			—			12,197
Policy benefits	—			—			427			—			427
Policy acquisition costs and administrative expenses	48			144			6,668			—			6,860
Interest (income) expense	(266		)	681			36			—			451
Other (income) expense	(20		)	26			(98		)	—			(92		)
Amortization of purchased intangibles	—			—			16			—			16
Chubb integration expenses	29			56			276			—			361
Income tax expense (benefit)	17			(323		)	862			—			556
Net income	$	2,525		$	1,225		$	2,909		$	(4,134	)	$	2,525
Comprehensive income	$	4,457		$	2,687		$	4,841		$	(7,528	)	$	4,457

Condensed Consolidating Statements of Operations and Comprehensive Income

Nine Months Ended September 30, 2015	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	13,569		$	—		$	13,569
Net premiums earned	—			—			13,006			—			13,006
Net investment income	2			2			1,658			—			1,662
Equity in earnings of subsidiaries	2,037			755			—			(2,792		)	—
Net realized gains (losses) including OTTI	—			(6		)	(354		)	—			(360		)
Losses and loss expenses	—			—			7,182			—			7,182
Policy benefits	—			—			384			—			384
Policy acquisition costs and administrative expenses	47			20			3,838			—			3,905
Interest (income) expense	(23		)	206			24			—			207
Other (income) expense	(149		)	(12		)	100			—			(61		)
Amortization of purchased intangibles	—			—			136			—			136
Chubb integration expenses	1			8			—			—			9
Income tax expense (benefit)	12			(84		)	467			—			395
Net income	$	2,151		$	613		$	2,179		$	(2,792	)	$	2,151
Comprehensive income (loss)	$	768		$	(332	)	$	795		$	(463	)	$	768

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2016	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net cash flows from operating activities	$	3,399		$	3,892		$	3,918		$	(7,372	)	$	3,837
Cash flows from investing activities
Purchases of fixed maturities available for sale	—			(154		)	(23,683		)	—			(23,837		)
Purchases of fixed maturities held to maturity	—			—			(189		)	—			(189		)
Purchases of equity securities	—			—			(100		)	—			(100		)
Sales of fixed maturities available for sale	—			66			13,797			—			13,863
Sales of equity securities	—			—			963			—			963
Maturities and redemptions of fixed maturities available for sale	—			59			6,877			—			6,936
Maturities and redemptions of fixed maturities held to maturity	—			—			627			—			627
Net change in short-term investments	—			7,627			4,239			—			11,866
Net derivative instruments settlements	—			(10		)	(171		)	—			(181		)
Acquisition of subsidiaries (net of cash acquired of $71)	—			(14,282		)	34			—			(14,248		)
Capital contribution	(2,330		)	(20		)	(2,330		)	4,680			—
Other	—			(3		)	29			—			26
Net cash flows (used for) from investing activities	(2,330		)	(6,717		)	93			4,680			(4,274		)
Cash flows from financing activities
Dividends paid on Common Shares	(851		)	—			—			—			(851		)
Proceeds from issuance of repurchase agreements	—			—			1,457			—			1,457
Repayment of repurchase agreements	—			—			(1,455		)	—			(1,455		)
Proceeds from share-based compensation plans, including windfall tax benefits	—			—			117			—			117
Dividend to parent company	—			—			(7,372		)	7,372			—
Advances (to) from affiliates	(258		)	219			39			—			—
Capital contribution	—			2,330			2,350			(4,680		)	—
Net proceeds from (payments to) affiliated notional cash pooling programs(1)	45			280			—			(325		)	—
Policyholder contract deposits	—			—			473			—			473
Policyholder contract withdrawals	—			—			(247		)	—			(247		)
Other	—			(4		)	—			—			(4		)
Net cash flows (used for) from financing activities	(1,064		)	2,825			(4,638		)	2,367			(510		)
Effect of foreign currency rate changes on cash and cash equivalents	—			—			42			—			42
Net increase (decrease) in cash	5			—			(585		)	(325		)	(905		)
Cash – beginning of period(1)	1			2			2,743			(971		)	1,775
Cash – end of period(1)	$	6		$	2		$	2,158		$	(1,296	)	$	870

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016 and December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2015	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net cash flows from (used for) operating activities	$	350		$	(46	)	$	2,671		$	(276	)	$	2,699
Cash flows from investing activities
Purchases of fixed maturities available for sale	—			—			(13,052		)	(8		)	(13,060		)
Purchases of fixed maturities held to maturity	—			—			(39		)	—			(39		)
Purchases of equity securities	—			—			(122		)	—			(122		)
Sales of fixed maturities available for sale	—			—			5,233			—			5,233
Sales of equity securities	—			—			150			—			150
Maturities and redemptions of fixed maturities    available for sale	—			—			5,257			—			5,257
Maturities and redemptions of fixed maturities held to maturity	—			—			552			—			552
Net change in short-term investments	—			215			206			—			421
Net derivative instruments settlements	—			(10		)	72			—			62
Acquisition of subsidiaries (net of cash acquired of $620)	—			—			259			—			259
Capital contribution	—			(625		)	—			625			—
Other	—			(25		)	(121		)	8			(138		)
Net cash flows from (used for) investing activities	—			(445		)	(1,605		)	625			(1,425		)
Cash flows from financing activities
Dividends paid on Common Shares	(644		)	—			—			—			(644		)
Common Shares repurchased	—			—			(758		)	—			(758		)
Proceeds from issuance of long-term debt	—			800			—			—			800
Proceeds from issuance of repurchase agreements	—			—			1,478			—			1,478
Repayment of long-term debt	—			(450		)	(1		)	—			(451		)
Repayment of repurchase agreements	—			—			(1,477		)	—			(1,477		)
Proceeds from share-based compensation plans, including windfall tax benefits	—			—			89			—			89
Dividend to parent company	—			—			(276		)	276			—
Advances (to) from affiliates	(416		)	272			144			—			—
Capital contribution	—			—			625			(625		)	—
Net proceeds from (payments to) affiliated notional cash pooling programs(1)	727			(121		)	—			(606		)	—
Policyholder contract deposits	—			—			351			—			351
Policyholder contract withdrawals	—			—			(159		)	—			(159		)
Other	—			(6		)	—			—			(6		)
Net cash flows used for financing activities	(333		)	495			16			(955		)	(777		)
Effect of foreign currency rate changes on cash and cash equivalents	—			—			(114		)	—			(114		)
Net increase in cash	17			4			968			(606		)	383
Cash – beginning of period(1)	—			1			1,209			(555		)	655
Cash – end of period(1)	$	17		$	5		$	2,177		$	(1,161	)	$	1,038

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2015 and December 31, 2014, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

XML

General (Policies)

9 Months Ended

Sep. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of presentation

a) Basis of presentation

On January 14, 2016, we completed the acquisition of The Chubb Corporation (Chubb Corp), creating a global leader in property and casualty insurance. We have changed our name from ACE Limited to Chubb Limited and plan to adopt the Chubb name globally, although some subsidiaries may continue to use ACE as a part of their name.

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. Effective the first quarter of 2016, 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. This reflects our significantly larger and expanded operations subsequent to our acquisition of Chubb Corp. We have also redefined Corporate to include all run-off asbestos and environmental (A&E) exposures, the results of our run-off Brandywine business, the results of Westchester specialty operations for 1996 and prior years, and certain run-off exposures. Prior period amounts of Chubb Limited (i.e., excluding the historical results of Chubb Corp) contained in this report have been adjusted to conform to the new segment presentation. 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 (consisting of normally recurring accruals) 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 of Chubb Corp are included from the acquisition date forward (i.e., after January 14, 2016). 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 2015 Form 10-K.

Accounting guidance adopted in 2016

b) Accounting guidance adopted in 2016

Presentation of Debt Issuance Costs

In April 2015, the Financial Accounting Standard Board (FASB) issued new guidance related to the accounting for debt issuance costs. The new guidance requires presentation of debt issuance costs in the Consolidated balance sheets as a reduction of the carrying amount of the related debt liability instead of as a deferred charge. We retrospectively adopted this guidance effective January 1, 2016 and reclassified $60 million of debt issuance costs from Other assets to Long term debt ($58 million) and Trust preferred securities ($2 million) as of December 31, 2015.

Accounting guidance not yet adopted

c) Accounting guidance not yet adopted

Revenue from Contracts with Customers

In May 2014, the FASB issued an accounting standard that supersedes most existing revenue recognition guidance. The standard excludes from its scope the accounting for insurance contracts, leases, financial instruments, and certain other agreements that are governed under other GAAP guidance, but could affect the revenue recognition for certain of our claims management and risk control services. The updated guidance requires an entity to recognize revenue as performance obligations are met, in order to reflect the transfer of promised goods or services to customers in an amount that reflects the consideration the entity is entitled to receive for those goods or services. The standard is effective for us in the first quarter of 2018 with early adoption permitted. The adoption of this guidance is not expected to have a material impact on our financial condition or results of operations.

Short-Duration Contracts

In May 2015, the FASB issued guidance that requires additional disclosures for short-duration insurance contracts. New disclosure will be required to provide more information about initial claim estimates and subsequent adjustments to those estimates, the methodologies and judgments used to estimate claims, and the timing, frequency, and severity of claims. The guidance is effective for us beginning with our 2016 annual reporting on Form 10-K. The guidance requires a change in disclosure only and adoption of this guidance will not have an impact on our financial condition or results of operations.

Financial Instruments – Recognition and Measurement of Financial Assets and Financial Liabilities

In January 2016, the FASB issued guidance that affects the recognition, measurement, presentation, and disclosure of financial instruments. The guidance requires equity investments to be measured at fair value with changes in fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee) and an assessment of a valuation allowance on deferred tax assets related to unrealized losses of available for sale debt securities in combination with other deferred tax assets. The standard is effective for us in the first quarter of 2018. We are in the process of evaluating the effect the updated guidance will have on our financial condition and results of operations.

Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments

In June 2016, the FASB issued guidance on the accounting for credit losses of financial instruments that are measured at amortized cost, including held to maturity securities and reinsurance recoverables, by applying an approach based on the current expected credit losses (CECL). The estimate of expected credit losses should consider historical information, current information, as well as reasonable and supportable forecasts, including estimates of prepayments. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset in order to present the net carrying value at the amount expected to be collected on the financial asset on the Consolidated balance sheet.

The guidance also amends the current available for sale (AFS) security other-than-temporary impairment model by requiring an estimate of the expected credit loss (ECL) only when the fair value is below the amortized cost of the asset. The length of time the fair value of an AFS debt security has been below the amortized cost will no longer impact the determination of whether a credit loss exists. The AFS debt security model will also require the use of a valuation allowance.

The standard is effective for us in the first quarter of 2020 with early adoption permitted in the first quarter of 2019. We will be able to assess the effect of adopting this guidance on our financial condition and results of operations closer to the date of adoption.

Stock Compensation

In March 2016, the FASB issued guidance which requires recognition of the excess tax benefits or deficiencies of awards through net income rather than through additional paid in capital. Additionally, entities can elect to account for forfeitures related to share-based payments either as they occur or through an estimation method. If elected, the change to recognize forfeitures as they occur would be adopted using a modified retrospective approach, with a cumulative effect adjustment recorded to retained earnings. The updated guidance is effective for us in the first quarter of 2017 with early adoption permitted. Adoption of this guidance is not expected to have a material impact on our financial condition and results of operations.

Statement of Cash Flows

In August 2016, the FASB issued guidance clarifying the classification of certain cash receipts and cash payments within the statement of cash flows, including distributions received from equity method investments. The guidance requires entities to make an accounting policy election to present cash flows received either in operating cash flows or investing cash flows based on cumulative equity-method earnings or on the nature of the distributions. The updated guidance is effective for us in the first quarter of 2018 with early adoption permitted. The updated guidance should be applied retrospectively, unless it is impracticable to do so, at which point the guidance should be applied prospectively. We are in the process of evaluating the effect the updated guidance will have on our statements of cash flows.

XML

Acquisitions Acquisitions (Tables)

9 Months Ended

Sep. 30, 2016

Acquisition [Abstract]

Schedule of Assets Acquired and Liabilities Assumed in the Chubb Corp Acquisition [Table Text Block]

The table below details the purchase consideration and preliminary allocation of assets acquired and liabilities assumed. During the second and third quarters of 2016, we reassessed certain components of our preliminary estimates of assets acquired and liabilities assumed, including the net realizable value for Reinsurance recoverables on losses and loss expenses and Insurance and reinsurance balances receivable and certain components of the Deferred tax liabilities, which resulted in an adjustment to our preliminary estimates that increased Goodwill by $85 million. These estimates remain preliminary and are subject to adjustment. While they are not expected to be materially different than those shown, any material adjustments to the estimates will be reflected, retroactively, as of the date of the acquisition.

(in millions, except per share data)
Purchase consideration
Chubb Limited common shares
Chubb Corp common shares outstanding	228
Per share exchange ratio	0.6019
Common shares issued by Chubb Limited	137
Common share price of Chubb Limited at January 14, 2016	$	111.02
Fair value of common shares issued by Chubb Limited to common shareholders of Chubb Corp	$	15,204
Cash consideration
Chubb Corp common shares outstanding	228
Agreed cash price per share paid to common shareholders of Chubb Corp	$	62.93
Cash consideration paid by Chubb Limited to common shareholders of Chubb Corp	$	14,319
Stock-based awards
Fair value of equity awards issued (1)	$	323
Fair value of purchase consideration	$	29,846
Preliminary estimate of assets acquired and (liabilities) assumed
Cash	$	71
Investments	42,967
Accrued investment income	337
Insurance and reinsurance balances receivable	2,981
Reinsurance recoverable on losses and loss expenses	1,645
Indefinite lived intangible assets	2,860
Finite lived intangible assets	4,795
Prepaid reinsurance premiums	280
Other assets	865
Unpaid losses and loss expenses	(22,906		)
Unearned premiums	(7,033		)
Insurance and reinsurance balances payable	(511		)
Accounts payable, accrued expenses, and other liabilities	(1,935		)
Deferred tax liabilities	(1,335		)
Long-term debt	(3,765		)
Total identifiable net assets acquired	19,316
Goodwill	10,530
Purchase price	$	29,846

⁽¹⁾  The estimated fair value of the replacement equity awards was $525 million, of which $323 million was attributed to service periods prior to the acquisition and was included in the purchase consideration. Refer to Note 10 for further information on these replacement equity awards.

Results of Operations From Date of Business Combination [Table Text Block]

The following table summarizes the results of the acquired Chubb Corp operations since the acquisition date that have been included within our Consolidated statements of operations:

(in millions of U.S. dollars)	Three Months Ended September 30, 2016		January 14, 2016 to September 30, 2016
Total revenues	$	2,656	$	7,888
Net income	$	483	$	1,064

Pro Forma Financial Information for the Chubb Corp Acquisition [Table Text Block]

The following table provides supplemental unaudited pro forma consolidated information for the three and nine months endedSeptember 30, 2016 and 2015, as if Chubb Corp had been acquired as of January 1, 2015. The unaudited pro forma consolidated financial statements are presented solely for informational purposes and are not necessarily indicative of the consolidated results of operations that might have been achieved had the transaction been completed as of the date indicated, nor are they meant to be indicative of any anticipated consolidated future results of operations that the combined company will experience after the transaction.

	Three Months Ended				Nine Months Ended
	September 30				September 30
(in millions of U.S. dollars, except per share data)	2016		2015		2016		2015
Total revenues	$	8,521	$	8,314	$	23,758	$	24,387
Net income	$	1,345	$	1,036	$	2,591	$	3,194
Earnings per share
Basic earnings per share	$	2.87	$	2.23	$	5.54	$	6.85
Diluted earnings per share	$	2.85	$	2.21	$	5.50	$	6.78

XML

Investments (Tables)

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Schedule Of Amortized Cost and Fair Value of Available-for-sale Securities and Related OTTI Recognized in AOCI

September 30, 2016	Amortized Cost		Gross Unrealized Appreciation		Gross Unrealized Depreciation			Fair Value		OTTI Recognized in AOCI
(in millions of U.S. dollars)
Available for sale
U.S. Treasury and agency	$	2,626	$	84	$	(2	)	$	2,708	$	—
Foreign	21,499		1,057		(48		)	22,508		(9		)
Corporate securities	22,860		977		(64		)	23,773		(9		)
Mortgage-backed securities	13,083		383		(5		)	13,461		(1		)
States, municipalities, and political subdivisions	18,562		357		(11		)	18,908		—
	$	78,630	$	2,858	$	(130	)	$	81,358	$	(19	)
Held to maturity
U.S. Treasury and agency	$	709	$	26	$	—		$	735	$	—
Foreign	694		45		—			739		—
Corporate securities	2,852		131		(2		)	2,981		—
Mortgage-backed securities	1,507		72		—			1,579		—
States, municipalities, and political subdivisions	5,165		167		—			5,332		—
	$	10,927	$	441	$	(2	)	$	11,366	$	—

December 31, 2015	Amortized Cost		Gross Unrealized Appreciation		Gross Unrealized Depreciation			Fair Value		OTTI Recognized in AOCI
(in millions of U.S. dollars)
Available for sale
U.S. Treasury and agency	$	2,481	$	52	$	(5	)	$	2,528	$	—
Foreign	13,190		468		(213		)	13,445		(13		)
Corporate securities	15,028		355		(454		)	14,929		(28		)
Mortgage-backed securities	9,827		183		(52		)	9,958		(1		)
States, municipalities, and political subdivisions	2,623		110		(6		)	2,727		—
	$	43,149	$	1,168	$	(730	)	$	43,587	$	(42	)
Held to maturity
U.S. Treasury and agency	$	733	$	13	$	(1	)	$	745	$	—
Foreign	763		30		(8		)	785		—
Corporate securities	3,054		57		(55		)	3,056		—
Mortgage-backed securities	1,707		38		(2		)	1,743		—
States, municipalities, and political subdivisions	2,173		52		(2		)	2,223		—
	$	8,430	$	190	$	(68	)	$	8,552	$	—

Schedule Of Amortized Cost And Fair Value Of Fixed Maturities And Related OTTI Recognized In AOCI

September 30, 2016	Amortized Cost		Gross Unrealized Appreciation		Gross Unrealized Depreciation			Fair Value		OTTI Recognized in AOCI
(in millions of U.S. dollars)
Available for sale
U.S. Treasury and agency	$	2,626	$	84	$	(2	)	$	2,708	$	—
Foreign	21,499		1,057		(48		)	22,508		(9		)
Corporate securities	22,860		977		(64		)	23,773		(9		)
Mortgage-backed securities	13,083		383		(5		)	13,461		(1		)
States, municipalities, and political subdivisions	18,562		357		(11		)	18,908		—
	$	78,630	$	2,858	$	(130	)	$	81,358	$	(19	)
Held to maturity
U.S. Treasury and agency	$	709	$	26	$	—		$	735	$	—
Foreign	694		45		—			739		—
Corporate securities	2,852		131		(2		)	2,981		—
Mortgage-backed securities	1,507		72		—			1,579		—
States, municipalities, and political subdivisions	5,165		167		—			5,332		—
	$	10,927	$	441	$	(2	)	$	11,366	$	—

December 31, 2015	Amortized Cost		Gross Unrealized Appreciation		Gross Unrealized Depreciation			Fair Value		OTTI Recognized in AOCI
(in millions of U.S. dollars)
Available for sale
U.S. Treasury and agency	$	2,481	$	52	$	(5	)	$	2,528	$	—
Foreign	13,190		468		(213		)	13,445		(13		)
Corporate securities	15,028		355		(454		)	14,929		(28		)
Mortgage-backed securities	9,827		183		(52		)	9,958		(1		)
States, municipalities, and political subdivisions	2,623		110		(6		)	2,727		—
	$	43,149	$	1,168	$	(730	)	$	43,587	$	(42	)
Held to maturity
U.S. Treasury and agency	$	733	$	13	$	(1	)	$	745	$	—
Foreign	763		30		(8		)	785		—
Corporate securities	3,054		57		(55		)	3,056		—
Mortgage-backed securities	1,707		38		(2		)	1,743		—
States, municipalities, and political subdivisions	2,173		52		(2		)	2,223		—
	$	8,430	$	190	$	(68	)	$	8,552	$	—

Schedule Of Fixed Maturities By Contractual Maturity

The following table presents fixed maturities by contractual maturity:

			September 30				December 31
			2016				2015
(in millions of U.S. dollars)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Available for sale
Due in 1 year or less	$	3,402	$	3,413	$	1,856	$	1,865
Due after 1 year through 5 years	25,152		25,865		14,936		15,104
Due after 5 years through 10 years	26,702		27,645		12,258		12,173
Due after 10 years	10,291		10,974		4,272		4,487
	65,547		67,897		33,322		33,629
Mortgage-backed securities	13,083		13,461		9,827		9,958
	$	78,630	$	81,358	$	43,149	$	43,587
Held to maturity
Due in 1 year or less	$	458	$	462	$	492	$	495
Due after 1 year through 5 years	2,716		2,807		2,443		2,517
Due after 5 years through 10 years	2,815		2,919		2,292		2,313
Due after 10 years	3,431		3,599		1,496		1,484
	9,420		9,787		6,723		6,809
Mortgage-backed securities	1,507		1,579		1,707		1,743
	$	10,927	$	11,366	$	8,430	$	8,552

Schedule Of Cost And Fair Value Of Equity Securities

	September 30			December 31
(in millions of U.S. dollars)	2016			2015
Cost	$	695		$	441
Gross unrealized appreciation	122			74
Gross unrealized depreciation	(14		)	(18		)
Fair value	$	803		$	497

Schedule of Realized Gain (Loss)

The following table presents the Net realized gains (losses) and the losses included in Net realized gains (losses) and OCI as a result of conditions which caused us to conclude the decline in fair value of certain investments was “other-than-temporary”:

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Fixed maturities:
OTTI on fixed maturities, gross	$	(7	)	$	(31	)	$	(85	)	$	(57	)
OTTI on fixed maturities recognized in OCI (pre-tax)	—			5			8			11
OTTI on fixed maturities, net	(7		)	(26		)	(77		)	(46		)
Gross realized gains excluding OTTI	47			19			149			91
Gross realized losses excluding OTTI	(13		)	(44		)	(228		)	(95		)
Total fixed maturities	27			(51		)	(156		)	(50		)
Equity securities:
OTTI on equity securities	(1		)	(3		)	(7		)	(4		)
Gross realized gains excluding OTTI	19			10			63			43
Gross realized losses excluding OTTI	(12		)	(5		)	(17		)	(7		)
Total equity securities	6			2			39			32
OTTI on other investments	(4		)	(1		)	(7		)	(1		)
Foreign exchange gains (losses)	29			(2		)	46			(73		)
Investment and embedded derivative instruments	1			(22		)	(85		)	6
Fair value adjustments on insurance derivative	89			(396		)	(270		)	(337		)
S&P put options and futures	(45		)	83			(88		)	69
Other derivative instruments	3			(9		)	1			(10		)
Other	(6		)	(1		)	10			4
Net realized gains (losses)	$	100		$	(397	)	$	(510	)	$	(360	)

Schedule Of Roll-Forward Of Pre-Tax Credit Losses Related To Fixed Maturities For Which A Portion Of OTTI Was Recognized In OCI

The following table presents a roll-forward of pre-tax credit losses related to fixed maturities for which a portion of OTTI was recognized in OCI:

	Three Months Ended						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Balance of credit losses related to securities still held – beginning of period	$	51		$	23		$	53		$	28
Additions where no OTTI was previously recorded	4			8			16			15
Additions where an OTTI was previously recorded	1			6			13			8
Reductions for securities sold during the period	(11		)	(5		)	(37		)	(19		)
Balance of credit losses related to securities still held – end of period	$	45		$	32		$	45		$	32

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 all securities in an unrealized loss position (including securities on loan), the aggregate fair value and gross unrealized loss by length of time the security has continuously been in an unrealized loss position:

	0 – 12 Months					Over 12 Months					Total
September 30, 2016	Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury and agency	$	436	$	(2	)	$	—	$	—		$	436	$	(2	)
Foreign	1,899		(20		)	409		(28		)	2,308		(48		)
Corporate securities	1,559		(21		)	750		(45		)	2,309		(66		)
Mortgage-backed securities	1,039		(3		)	292		(2		)	1,331		(5		)
States, municipalities, and political subdivisions	2,807		(10		)	50		(1		)	2,857		(11		)
Total fixed maturities	7,740		(56		)	1,501		(76		)	9,241		(132		)
Equity securities	133		(14		)	—		—			133		(14		)
Other investments	233		(27		)	—		—			233		(27		)
Total	$	8,106	$	(97	)	$	1,501	$	(76	)	$	9,607	$	(173	)

	0 – 12 Months					Over 12 Months					Total
December 31, 2015	Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss
(in millions of U.S. dollars)
U.S. Treasury and agency	$	996	$	(5	)	$	153	$	(1	)	$	1,149	$	(6	)
Foreign	3,953		(148		)	436		(73		)	4,389		(221		)
Corporate securities	7,518		(371		)	738		(138		)	8,256		(509		)
Mortgage-backed securities	3,399		(42		)	516		(12		)	3,915		(54		)
States, municipalities, and political subdivisions	556		(6		)	42		(2		)	598		(8		)
Total fixed maturities	16,422		(572		)	1,885		(226		)	18,307		(798		)
Equity securities	131		(18		)	—		—			131		(18		)
Other investments	210		(11		)	—		—			210		(11		)
Total	$	16,763	$	(601	)	$	1,885	$	(226	)	$	18,648	$	(827	)

Schedule Of Components Of Restricted Assets

The following table presents the components of restricted assets:

	September 30		December 31
(in millions of U.S. dollars)	2016		2015
Trust funds	$	13,093	$	11,862
Deposits with non-U.S. regulatory authorities	2,338		2,075
Deposits with U.S. regulatory authorities	2,232		1,242
Assets pledged under repurchase agreements	1,464		1,459
Other pledged assets	433		392
	$	19,560	$	17,030

XML

Fair value measurements (Tables)

9 Months Ended

Sep. 30, 2016

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

September 30, 2016	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury and agency	$	2,155	$	553	$	—	$	2,708
Foreign	—		22,405		103		22,508
Corporate securities	—		23,167		606		23,773
Mortgage-backed securities	—		13,415		46		13,461
States, municipalities, and political subdivisions	—		18,908		—		18,908
	2,155		78,448		755		81,358
Equity securities	766		—		37		803
Short-term investments	2,127		1,359		62		3,548
Other investments (1)	404		250		223		877
Securities lending collateral	—		1,140		—		1,140
Investment derivative instruments	20		—		—		20
Other derivative instruments	14		—		—		14
Separate account assets	1,743		97		—		1,840
Total assets measured at fair value (1)	$	7,229	$	81,294	$	1,077	$	89,600
Liabilities:
Investment derivative instruments	$	34	$	—	$	—	$	34
Other derivative instruments	—		—		8		8
GLB (2)	—		—		883		883
Total liabilities measured at fair value	$	34	$	—	$	891	$	925

⁽¹⁾  Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $3,498 million and other investments of $25 million at September 30, 2016 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. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

December 31, 2015	Level 1		Level 2		Level 3		Total
(in millions of U.S. dollars)
Assets:
Fixed maturities available for sale
U.S. Treasury and agency	$	1,712	$	816	$	—	$	2,528
Foreign	—		13,388		57		13,445
Corporate securities	—		14,755		174		14,929
Mortgage-backed securities	—		9,905		53		9,958
States, municipalities, and political subdivisions	—		2,727		—		2,727
	1,712		41,591		284		43,587
Equity securities	481		—		16		497
Short-term investments	7,171		3,275		—		10,446
Other investments (1)	347		230		212		789
Securities lending collateral	—		1,046		—		1,046
Investment derivative instruments	12		—		—		12
Separate account assets	1,464		88		—		1,552
Total assets measured at fair value (1)	$	11,187	$	46,230	$	512	$	57,929
Liabilities:
Investment derivative instruments	$	13	$	—	$	—	$	13
Other derivative instruments	4		—		6		10
GLB (2)	—		—		609		609
Total liabilities measured at fair value	$	17	$	—	$	615	$	632

⁽¹⁾  Excluded from the table above are partially-owned investments, investment funds, and limited partnerships of $2,477 million and other investments of $25 million at December 31, 2015 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. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

Fair Value And Maximum Future Funding Commitments Related To Investments

The following table presents, by investment category, the expected liquidation period, fair value, and maximum future funding commitments of alternative investments:

				September 30				December 31
	Expected Liquidation Period of Underlying Assets			2016				2015
(in millions of U.S. dollars)		Fair Value		Maximum Future Funding Commitments		Fair Value		Maximum Future Funding Commitments
Financial	5 to 9 Years	$	549	$	188	$	300	$	105
Real Assets	3 to 7 Years	520		274		474		140
Distressed	5 to 9 Years	463		196		261		218
Private Credit	3 to 7 Years	241		294		265		209
Traditional	3 to 9 Years	1,458		999		895		152
Vintage	1 to 2 Years	23		14		13		—
Investment funds	Not Applicable	244		—		269		—
		$	3,498	$	1,965	$	2,477	$	824

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.

(in millions of U.S. dollars, except for percentages)	Fair Value				Valuation Technique	Significant Unobservable Inputs	Ranges
	September 30, 2016		December 31, 2015
GLB(1)	$	883	$	609	Actuarial model	Lapse rate	1% – 30%
						Annuitization rate	0% – 55%

⁽¹⁾  Discussion of the most significant inputs used in the fair value measurement of GLB and the sensitivity of those assumptions is included within Note 4 a) Guaranteed living benefits.

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	Available-for-Sale Debt Securities									Equity securities			Short-term investments		Other investments			Other derivative instruments			GLB(1)
September 30, 2016	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	87		$	281		$	49		$	37		$	50	$	216		$	10		$	971
Transfers into Level 3	—			—			—			—			—		—			—			—
Change in Net Unrealized Gains (Losses) included in OCI	(1		)	6			—			3			—		4			—			—
Net Realized Gains/Losses	—			(4		)	—			—			—		—			—			(88		)
Purchases	20			348			—			—			12		8			—			—
Sales	(2		)	(18		)	(3		)	(3		)	—		—			—			—
Settlements	(1		)	(7		)	—			—			—		(5		)	(2		)	—
Balance–End of Period	$	103		$	606		$	46		$	37		$	62	$	223		$	8		$	883
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	—		$	(4	)	$	—		$	—		$	—	$	—		$	—		$	(88	)

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

	Assets																	Liabilities
Three Months Ended	Available-for-Sale Debt Securities									Equity securities			Other investments			Other derivative instruments		GLB(1)
September 30, 2015	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	56		$	167		$	55		$	2		$	214		$	3	$	347
Transfers into Level 3	1			2			—			—			—			—		—
Change in Net Unrealized Gains (Losses) included in OCI	1			1			—			2			(7		)	—		—
Net Realized Gains/Losses	(1		)	(1		)	—			(1		)	—			4		397
Purchases	—			22			—			1			5			—		—
Sales	—			(5		)	(1		)	—			—			—		—
Settlements	(4		)	(3		)	—			—			(3		)	—		—
Balance–End of Period	$	53		$	183		$	54		$	4		$	209		$	7	$	744
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(1	)	$	—		$	—		$	(1	)	$	—		$	4	$	397

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $615 million at June 30, 2015, which includes a fair value derivative adjustment of $744 million and $347 million, respectively.

															Assets			Liabilities
Nine Months Ended	Available-for-Sale Debt Securities									Equity securities			Short-term investments		Other investments			Other derivative instruments			GLB(1)
September 30, 2016	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	57		$	174		$	53		$	16		$	—	$	212		$	6		$	609
Transfers into Level 3	9			18			—			—			—		—			—			—
Transfers out of Level 3	(2		)	—			—			—			—		—			—			—
Change in Net Unrealized Gains (Losses) included in OCI	8			17			—			2			—		4			—			—
Net Realized Gains/Losses	(6		)	(12		)	—			1			—		—			2			274
Purchases (2)	52			472			1			23			62		22			2			—
Sales	(10		)	(48		)	(8		)	(5		)	—		—			—			—
Settlements	(5		)	(15		)	—			—			—		(15		)	(2		)	—
Balance–End of Period	$	103		$	606		$	46		$	37		$	62	$	223		$	8		$	883
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(5	)	$	(11	)	$	—		$	—		$	—	$	—		$	2		$	274

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

⁽²⁾  Includes acquired invested assets as a result of the Chubb Corp acquisition.

	Assets																	Liabilities
Nine Months Ended	Available-for-Sale Debt Securities												Other investments			Other derivative instruments		GLB(1)
September 30, 2015	Foreign			Corporate securities			MBS			Equity securities
(in millions of U.S. dollars)
Balance–Beginning of Period	$	22		$	187		$	15		$	2		$	204		$	4	$	406
Transfers into Level 3	29			15			—			—			—			—		—
Change in Net Unrealized Gains (Losses) included in OCI	(1		)	1			—			2			(7		)	—		—
Net Realized Gains/Losses	(1		)	(4		)	—			(2		)	—			3		338
Purchases	9			38			41			2			21			—		—
Sales	(1		)	(10		)	(1		)	—			—			—		—
Settlements	(4		)	(44		)	(1		)	—			(9		)	—		—
Balance–End of Period	$	53		$	183		$	54		$	4		$	209		$	7	$	744
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(1	)	$	(2	)	$	—		$	(2	)	$	—		$	3	$	338

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $663 million at December 31, 2014, which includes a fair value derivative adjustment of $744 million and $406 million, respectively.

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	Available-for-Sale Debt Securities									Equity securities			Short-term investments		Other investments			Other derivative instruments			GLB(1)
September 30, 2016	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	87		$	281		$	49		$	37		$	50	$	216		$	10		$	971
Transfers into Level 3	—			—			—			—			—		—			—			—
Change in Net Unrealized Gains (Losses) included in OCI	(1		)	6			—			3			—		4			—			—
Net Realized Gains/Losses	—			(4		)	—			—			—		—			—			(88		)
Purchases	20			348			—			—			12		8			—			—
Sales	(2		)	(18		)	(3		)	(3		)	—		—			—			—
Settlements	(1		)	(7		)	—			—			—		(5		)	(2		)	—
Balance–End of Period	$	103		$	606		$	46		$	37		$	62	$	223		$	8		$	883
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	—		$	(4	)	$	—		$	—		$	—	$	—		$	—		$	(88	)

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

	Assets																	Liabilities
Three Months Ended	Available-for-Sale Debt Securities									Equity securities			Other investments			Other derivative instruments		GLB(1)
September 30, 2015	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	56		$	167		$	55		$	2		$	214		$	3	$	347
Transfers into Level 3	1			2			—			—			—			—		—
Change in Net Unrealized Gains (Losses) included in OCI	1			1			—			2			(7		)	—		—
Net Realized Gains/Losses	(1		)	(1		)	—			(1		)	—			4		397
Purchases	—			22			—			1			5			—		—
Sales	—			(5		)	(1		)	—			—			—		—
Settlements	(4		)	(3		)	—			—			(3		)	—		—
Balance–End of Period	$	53		$	183		$	54		$	4		$	209		$	7	$	744
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(1	)	$	—		$	—		$	(1	)	$	—		$	4	$	397

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $615 million at June 30, 2015, which includes a fair value derivative adjustment of $744 million and $347 million, respectively.

															Assets			Liabilities
Nine Months Ended	Available-for-Sale Debt Securities									Equity securities			Short-term investments		Other investments			Other derivative instruments			GLB(1)
September 30, 2016	Foreign			Corporate securities			MBS
(in millions of U.S. dollars)
Balance–Beginning of Period	$	57		$	174		$	53		$	16		$	—	$	212		$	6		$	609
Transfers into Level 3	9			18			—			—			—		—			—			—
Transfers out of Level 3	(2		)	—			—			—			—		—			—			—
Change in Net Unrealized Gains (Losses) included in OCI	8			17			—			2			—		4			—			—
Net Realized Gains/Losses	(6		)	(12		)	—			1			—		—			2			274
Purchases (2)	52			472			1			23			62		22			2			—
Sales	(10		)	(48		)	(8		)	(5		)	—		—			—			—
Settlements	(5		)	(15		)	—			—			—		(15		)	(2		)	—
Balance–End of Period	$	103		$	606		$	46		$	37		$	62	$	223		$	8		$	883
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(5	)	$	(11	)	$	—		$	—		$	—	$	—		$	2		$	274

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

⁽²⁾  Includes acquired invested assets as a result of the Chubb Corp acquisition.

	Assets																	Liabilities
Nine Months Ended	Available-for-Sale Debt Securities												Other investments			Other derivative instruments		GLB(1)
September 30, 2015	Foreign			Corporate securities			MBS			Equity securities
(in millions of U.S. dollars)
Balance–Beginning of Period	$	22		$	187		$	15		$	2		$	204		$	4	$	406
Transfers into Level 3	29			15			—			—			—			—		—
Change in Net Unrealized Gains (Losses) included in OCI	(1		)	1			—			2			(7		)	—		—
Net Realized Gains/Losses	(1		)	(4		)	—			(2		)	—			3		338
Purchases	9			38			41			2			21			—		—
Sales	(1		)	(10		)	(1		)	—			—			—		—
Settlements	(4		)	(44		)	(1		)	—			(9		)	—		—
Balance–End of Period	$	53		$	183		$	54		$	4		$	209		$	7	$	744
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date	$	(1	)	$	(2	)	$	—		$	(2	)	$	—		$	3	$	338

⁽¹⁾  Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $663 million at December 31, 2014, which includes a fair value derivative adjustment of $744 million and $406 million, respectively.

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:

September 30, 2016	Fair Value								Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury and agency	$	628	$	107	$	—	$	735	$	709
Foreign	—		739		—		739		694
Corporate securities	—		2,968		13		2,981		2,852
Mortgage-backed securities	—		1,579		—		1,579		1,507
States, municipalities, and political subdivisions	—		5,332		—		5,332		5,165
Total assets	$	628	$	10,725	$	13	$	11,366	$	10,927
Liabilities:
Repurchase agreements	$	—	$	1,406	$	—	$	1,406	$	1,406
Short-term debt	—		508		—		508		500
Long-term debt	—		13,762		—		13,762		12,621
Trust preferred securities	—		463		—		463		308
Total liabilities	$	—	$	16,139	$	—	$	16,139	$	14,835

December 31, 2015	Fair Value								Carrying Value
(in millions of U.S. dollars)	Level 1		Level 2		Level 3		Total
Assets:
Fixed maturities held to maturity
U.S. Treasury and agency	$	583	$	162	$	—	$	745	$	733
Foreign	—		785		—		785		763
Corporate securities	—		3,042		14		3,056		3,054
Mortgage-backed securities	—		1,743		—		1,743		1,707
States, municipalities, and political subdivisions	—		2,223		—		2,223		2,173
Total assets	$	583	$	7,955	$	14	$	8,552	$	8,430
Liabilities:
Repurchase agreements	$	—	$	1,404	$	—	$	1,404	$	1,404
Long-term debt	—		9,678		—		9,678		9,389
Trust preferred securities	—		446		—		446		307
Total liabilities	$	—	$	11,528	$	—	$	11,528	$	11,100

XML

Assumed life reinsurance programs involving minimum benefit guarantees under annuity contracts (Tables)

9 Months Ended

Sep. 30, 2016

Reinsurance Disclosures [Abstract]

Schedule Of Guaranteed Minimum Death Benefits And Guaranteed Minimum Income Benefits Income And Expense

The following table presents income and expenses relating to GMDB and GLB reinsurance. GLBs include GMIBs as well as some GMABs originating in Japan.

	Three Months Ended					Nine Months Ended
	September 30					September 30
(in millions of U.S. dollars)	2016		2015			2016			2015
GMDB
Net premiums earned	$	15	$	15		$	42		$	47
Policy benefits and other reserve adjustments	$	11	$	5		$	34		$	25
GLB
Net premiums earned	$	28	$	30		$	88		$	92
Policy benefits and other reserve adjustments	9		15			24			34
Net realized gains (losses)	86		(397		)	(285		)	(338		)
Loss recognized in Net income	$	105	$	(382	)	$	(221	)	$	(280	)
Less: Net cash received	15		20			57			74
Net (increase) decrease in liability	$	90	$	(402	)	$	(278	)	$	(354	)

XML

Goodwill and other intangible assets Goodwill and other intangible assets (Tables)

9 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The following table presents a roll-forward of Goodwill by segment for the nine months endedSeptember 30, 2016:

(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		Chubb Consolidated
Balance at December 31, 2015	$	1,203	$	196	$	134	$	2,078	$	365	$	820	$	4,796
Acquisition of Chubb Corp	5,711		2,025		—		2,794		—		—		10,530
Foreign exchange revaluation	43		13		—		98		—		1		155
Balance at September 30, 2016	$	6,957	$	2,234	$	134	$	4,970	$	365	$	821	$	15,481

Intangible assets acquired as part of Chubb Corp acquisition

The preliminary purchase price allocation to intangible assets recorded in connection with the Chubb Corp acquisition and their related useful lives are as follows:

(in millions of U.S. dollars)	Preliminary purchase price allocation		Estimated useful life
Definite life
Unearned premium reserves (UPR) intangible asset	$	1,550	1 year
Agency distribution relationships and renewal rights	3,150		24 years
Internally developed technology	95		3 years
Indefinite life
Trademarks	2,800		Indefinite
Licenses	50		Indefinite
Syndicate capacity	10		Indefinite
Total identified intangible assets	$	7,655

Intangible Asset Amortization for the Next 5 Years [Table Text Block]

The following table presents, as of September 30, 2016, the expected estimated pre-tax amortization expense (benefit), at current foreign currency exchange rates, for the fourth quarter of 2016 and the next five years, related to purchased intangibles as well as the fair value adjustment to Unpaid losses and loss expenses described above:

	Associated with the Chubb Corp Acquisition
For the Year Ending December 31 (in millions of U.S. dollars)	Agency distribution relationships and renewal rights		Internally developed technology		Fair value adjustment to Unpaid losses and loss expenses			Total			Other intangible assets		Total Amortization of purchased intangibles
Fourth quarter of 2016	$	33	$	8	$	(61	)	$	(20	)	$	23	$	3
2017	296		32		(161		)	167			85		252
2018	324		32		(102		)	254			73		327
2019	281		—		(62		)	219			66		285
2020	240		—		(36		)	204			59		263
2021	217		—		(20		)	197			53		250
Total	$	1,391	$	72	$	(442	)	$	1,021		$	359	$	1,380

XML

Debt (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

	September 30		December 31
(in millions of U.S. dollars)	2016		2015		Early Redemption Option
Repurchase agreements (weighted average interest rate of 0.8% in 2016 and 0.6% in 2015)	$	1,406	$	1,404	None
Short-term debt
Chubb INA senior notes:
$500 million 5.7% due February 2017	$	500	$	—	Make-whole premium plus 0.20%
Long-term debt
Chubb INA senior notes:
$500 million 5.7% due February 2017	$	—	$	500	Make-whole premium plus 0.20%
$300 million 5.8% due March 2018	300		299		Make-whole premium plus 0.35%
$600 million 5.75% due May 2018	641		—		Make-whole premium plus 0.30%
$100 million 6.6% due August 2018	109		—		None
$500 million 5.9% due June 2019	498		497		Make-whole premium plus 0.40%
$1,300 million 2.3% due November 2020	1,294		1,294		Make-whole premium plus 0.15%
$1,000 million 2.875% due November 2022	994		994		Make-whole premium plus 0.20%
$475 million 2.7% due March 2023	471		471		Make-whole premium plus 0.10%
$700 million 3.35% due May 2024	694		694		Make-whole premium plus 0.15%
$800 million 3.15% due March 2025	794		794		Make-whole premium plus 0.15%
$1,500 million 3.35% due May 2026	1,488		1,487		Make-whole premium plus 0.20%
$100 million 8.875% due August 2029	100		100		None
$200 million 6.8% due November 2031	258		—		Make-whole premium plus 0.25%
$300 million 6.7% due May 2036	297		297		Make-whole premium plus 0.20%
$800 million 6.0% due May 2037	982		—		Make-whole premium plus 0.20%
$600 million 6.5% due May 2038	778		—		Make-whole premium plus 0.30%
$475 million 4.15% due March 2043	469		469		Make-whole premium plus 0.15%
$1,500 million 4.35% due November 2045	1,482		1,482		Make-whole premium plus 0.25%
Chubb INA $1,000 million 6.375% capital securities due March 2067(1)	961		—		Make-whole premium plus 0.25%-0.50%
Other long-term debt (2.75% to 7.1% due December 2019 to September 2020)	11		11		None
Total long-term debt	$	12,621	$	9,389
Trust preferred securities
Chubb INA capital securities due April 2030	$	308	$	307	Redemption prices(2)

⁽¹⁾  6.375% interest rate through April 14, 2017; interest rate equal to three month LIBOR rate plus 2.25% thereafter.

⁽²⁾  Redemption price is equal to accrued and unpaid interest to the redemption date plus the greater of (i) 100 percent of the principal amount thereof, or (ii) sum of present value of scheduled payments of principal and interest on the debentures from the redemption date to April 1, 2030.

XML

Commitments, contingencies, and guarantees (Tables)

9 Months Ended

Sep. 30, 2016

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:

				September 30, 2016							December 31, 2015
	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)	$	10	$	(32	)	$	2,025	$	7	$	(11	)	$	1,029
Cross-currency swaps	OA / (AP)	—		—			95		—		—			95
Options/Futures contracts on bonds and equities	OA / (AP)	10		(2		)	1,353		5		(2		)	751
Convertible securities (1)	FM AFS / ES	5		—			8		31		—			40
		$	25	$	(34	)	$	3,481	$	43	$	(13	)	$	1,915
Other derivative instruments
Futures contracts on equities(2)	OA / (AP)	$	4	$	—		$	1,275	$	—	$	(4	)	$	1,197
Other	OA / (AP)	10		(8		)	243		—		(6		)	15
		$	14	$	(8	)	$	1,518	$	—	$	(10	)	$	1,212
GLB(3)	(AP) / (FPB)	$	—	$	(1,166	)	$	1,436	$	—	$	(888	)	$	1,155

⁽¹⁾  Includes fair value of embedded derivatives.

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

⁽³⁾  Includes both future policy benefits reserves and fair value derivative adjustment. Refer to Note 5 for additional information. 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.

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
September 30, 2016	Overnight and Continuous
(in millions of U.S. dollars)
Collateral held under securities lending agreements:
Cash	$	449
U.S. Treasury and agency	53
Foreign	324
Corporate securities	4
Mortgage-backed securities	38
Equity securities	272
	$	1,140
Gross amount of recognized liability for securities lending payable	$	1,141
Difference (1)	$	(1	)

⁽¹⁾  The carrying value of the securities lending collateral held is $1 million lower than the securities lending payable due to accrued interest recorded in the securities lending payable.

Secured Borrowings Securities Lending Table Text Block [Table Text Block]

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
September 30, 2016	Up to 30 Days		30 - 90 Days		Greater than 90 Days		Total
(in millions of U.S. dollars)
Collateral pledged under repurchase agreements:
U.S. Treasury and agency	$	5	$	—	$	232	$	237
Mortgage-backed securities	408		484		335		1,227
	$	413	$	484	$	567	$	1,464
Gross amount of recognized liabilities for repurchase agreements							$	1,406
Difference(1)							$	58

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

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						Nine Months Ended
	September 30						September 30
(in millions of U.S. dollars)	2016			2015			2016			2015
Investment and embedded derivative instruments
Foreign currency forward contracts	$	(10	)	$	15		$	(30	)	$	30
All other futures contracts and options	8			(23		)	(63		)	(10		)
Convertible securities(1)	3			(14		)	8			(14		)
Total investment and embedded derivative instruments	$	1		$	(22	)	$	(85	)	$	6
GLB and other derivative instruments
GLB(2)	$	89		$	(396	)	$	(270	)	$	(337	)
Futures contracts on equities(3)	(45		)	84			(88		)	71
Options on equity market indices(3)	—			(1		)	—			(2		)
Other	3			(9		)	1			(10		)
Total GLB and other derivative instruments	$	47		$	(322	)	$	(357	)	$	(278	)
	$	48		$	(344	)	$	(442	)	$	(272	)

⁽¹⁾  Includes embedded derivatives.

⁽²⁾  Excludes foreign exchange gains (losses) related to GLB.

⁽³⁾  Related to GMDB and GLB blocks of business.

XML

Shareholders' equity Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2016

Shareholders' equity [Abstract]

Dividends Declared [Table Text Block]

The following table presents dividend distributions per Common Share in Swiss francs (CHF) and U.S. dollars (USD):

	Three Months Ended						Nine Months Ended
	September 30						September 30
	2016			2015			2016			2015
	CHF	USD		CHF	USD		CHF	USD		CHF	USD
Dividends – par value reduction	—	$	—	—	$	—	—	$	—	0.62	$	0.65
Dividends – distributed from capital contribution reserves	0.67	0.69		0.65	0.67		2.01	2.05		1.27	1.34
Total dividend distributions per common share	0.67	$	0.69	0.65	$	0.67	2.01	$	2.05	1.89	$	1.99

XML

Postretirement benefits (Tables)

9 Months Ended

Sep. 30, 2016

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]

At the date of the acquisition of Chubb Corp, we assumed the following postretirement benefit plan assets and obligations:

	Pension Benefits									Other Postretirement Benefits
January 14, 2016	U.S. Plans			Non-U.S. Plans			Total			U.S. Plans			Non-U.S. Plans			Total
(in millions of U.S. dollars)
Fair value of plan assets	$	2,473		$	315		$	2,788		$	138		$	—		$	138
Benefit obligations	(3,153		)	(372		)	(3,525		)	(491		)	(15		)	(506		)
Funded status	$	(680	)	$	(57	)	$	(737	)	$	(353	)	$	(15	)	$	(368	)

Schedule of Net Benefit Costs [Table Text Block]

The following tables summarize the components of net periodic benefit costs for our pension and postretirement benefit plans recognized in the Consolidated statements of operations:

Three Months Ended September 30	Pension Benefits									Other Postretirement Benefits
(in millions of U.S. dollars)	U.S. Plans			Non-U.S. Plans			Total			U.S. Plans			Non-U.S. Plans		Total
2016
Net periodic benefit cost:
Service cost	$	20		$	6		$	26		$	4		$	—	$	4
Interest cost	26			8			34			4			—		4
Expected return on plan assets	(42		)	(10		)	(52		)	(3		)	—		(3		)
Amortization of net actuarial loss	—			—			—			—			—		—
Curtailments	(4		)	—			(4		)	—			—		—
Settlements	(1		)	—			(1		)	—			—		—
Net periodic benefit cost	$	(1	)	$	4		$	3		$	5		$	—	$	5
2015
Net periodic benefit cost:
Service cost	$	—		$	2		$	2
Interest cost	—			5			5
Expected return on plan assets	—			(7		)	(7		)
Amortization of net actuarial loss	—			—			—
Net periodic benefit cost	$	—		$	—		$	—

Nine Months Ended September 30	Pension Benefits									Other Postretirement Benefits
(in millions of U.S. dollars)	U.S. Plans			Non-U.S. Plans			Total			U.S. Plans			Non-U.S. Plans		Total
2016
Net periodic benefit cost:
Service cost	$	57		$	15		$	72		$	8		$	1	$	9
Interest cost	80			24			104			13			—		13
Expected return on plan assets	(121		)	(30		)	(151		)	(7		)	—		(7		)
Amortization of net actuarial loss	—			2			2			—			—		—
Curtailments	(4		)	—			(4		)	—			—		—
Settlements	(1		)	—			(1		)	—			—		—
Net periodic benefit cost	$	11		$	11		$	22		$	14		$	1	$	15
2015
Net periodic benefit cost:
Service cost	$	—		$	5		$	5
Interest cost	—			15			15
Expected return on plan assets	—			(21		)	(21		)
Amortization of net actuarial loss	—			2			2
Net periodic benefit cost	$	—		$	1		$	1

Schedule of Assumptions Used [Table Text Block]

The weighted-average assumptions used to determine net pension and other postretirement benefit costs were as follows:

	Pension Benefits				Other Postretirement Benefits
	U.S. Plans		Non-U.S. Plans		U.S. Plans		Non-U.S. Plans
September 30, 2016
Discount rate	4.28	%	3.74	%	4.41	%	4.30	%
Rate of compensation increase	4.00	%	3.40	%	N/A		N/A
Expected long-term rate of return on plan assets	7.00	%	4.90	%	7.00	%	N/A
December 31, 2015
Discount rate	N/A		3.51	%	N/A		N/A
Rate of compensation increase	N/A		3.09	%	N/A		N/A
Expected long-term rate of return on plan assets	N/A		4.81	%	N/A		N/A

XML

Segment information (Tables)

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Operations By Segment

The following tables present the Statement of Operations by segment:

	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance			Global Reinsurance		Life Insurance			Corporate			Chubb Consolidated
For the Three Months Ended
September 30, 2016
(in millions of U.S. dollars)
Net premiums written	$	3,110	$	1,011	$	849	$	1,940		$	131	$	532		$	—		$	7,573
Net premiums earned	3,086		1,081		819		2,034			156		512			—			7,688
Losses and loss expenses	1,863		594		683		843			49		174			63			4,269
Policy benefits	—		—		—		—			—		155			—			155
Policy acquisition costs	522		229		48		546			42		127			—			1,514
Administrative expenses	275		89		1		261			12		77			57			772
Underwriting income (loss)	426		169		87		384			53		(21		)	(120		)	978
Net investment income (loss)	477		53		5		152			67		71			(86		)	739
Other (income) expense	3		2		—		(6		)	—		(20		)	(70		)	(91		)
Amortization expense (benefit) of purchased intangibles	—		4		7		12			—		1			(20		)	4
Segment income (loss)	900		216		85		530			120		69			(116		)	1,804
Net realized gains including OTTI															100			100
Interest expense															152			152
Chubb integration expenses															115			115
Income tax expense															277			277
Net income (loss)															$	(560	)	$	1,360

	North America Commercial P&C Insurance			North America Personal P&C Insurance		North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Life Insurance		Corporate			Chubb Consolidated
For the Three Months Ended
September 30, 2015
(in millions of U.S. dollars)
Net premiums written	$	1,433		$	278	$	737		$	1,584		$	185		$	492	$	—		$	4,709
Net premiums earned	1,410			272		739			1,615			203			480		—			4,719
Losses and loss expenses	913			179		620			674			20			153		84			2,643
Policy benefits	—			—		—			—			—			89		—			89
Policy acquisition costs	142			13		42			405			52			117		—			771
Administrative expenses	154			36		—			246			12			74		46			568
Underwriting income (loss)	201			44		77			290			119			47		(130		)	648
Net investment income	260			7		5			132			76			66		3			549
Other (income) expense	(3		)	1		(1		)	(6		)	(4		)	48		(23		)	12
Amortization of purchased intangibles	—			31		8			12			—			—		—			51
Segment income (loss)	464			19		75			416			199			65		(104		)	1,134
Net realized gains (losses) including OTTI																	(397		)	(397		)
Interest expense																	68			68
Chubb integration expenses																	9			9
Income tax expense																	132			132
Net income (loss)																	$	(710	)	$	528

	North America Commercial P&C Insurance			North America Personal P&C Insurance		North America Agricultural Insurance			Overseas General Insurance			Global Reinsurance			Life Insurance			Corporate			Chubb Consolidated
For the Nine Months Ended
September 30, 2016
(in millions of U.S. dollars)
Net premiums written	$	8,657		$	3,113	$	1,288		$	6,012		$	562		$	1,575		$	—		$	21,207
Net premiums earned	9,130			3,245		1,169			6,082			543			1,521			—			21,690
Losses and loss expenses	5,581			1,916		937			2,953			225			498			87			12,197
Policy benefits	—			—		—			—			—			427			—			427
Policy acquisition costs	1,549			747		77			1,586			142			386			—			4,487
Administrative expenses	840			275		(1		)	801			40			226			192			2,373
Underwriting income (loss)	1,160			307		156			742			136			(16		)	(279		)	2,206
Net investment income (loss)	1,371			155		15			445			199			207			(271		)	2,121
Other (income) expense	(6		)	6		—			(16		)	(3		)	(14		)	(59		)	(92		)
Amortization expense (benefit) of purchased intangibles	—			16		22			36			—			2			(60		)	16
Segment income (loss)	2,537			440		149			1,167			338			203			(431		)	4,403
Net realized gains (losses) including OTTI																		(510		)	(510		)
Interest expense																		451			451
Chubb integration expenses																		361			361
Income tax expense																		556			556
Net income (loss)																		$	(2,309	)	$	2,525

	North America Commercial P&C Insurance			North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance			Global Reinsurance			Life Insurance		Corporate			Chubb Consolidated
For the Nine Months Ended
September 30, 2015
(in millions of U.S. dollars)
Net premiums written	$	4,158		$	958	$	1,204	$	5,047		$	719		$	1,483	$	—		$	13,569
Net premiums earned	4,209			687		1,124		4,896			649			1,441		—			13,006
Losses and loss expenses	2,744			446		913		2,304			191			442		142			7,182
Policy benefits	—			—		—		—			—			384		—			384
Policy acquisition costs	403			43		61		1,190			166			342		—			2,205
Administrative expenses	459			89		3		756			37			221		135			1,700
Underwriting income (loss)	603			109		147		646			255			52		(277		)	1,535
Net investment income	780			19		17		409			230			198		9			1,662
Other (income) expense	(5		)	1		1		(12		)	(5		)	32		(73		)	(61		)
Amortization of purchased intangibles	—			63		22		50			—			1		—			136
Segment income (loss)	1,388			64		141		1,017			490			217		(195		)	3,122
Net realized gains (losses) including OTTI																(360		)	(360		)
Interest expense																207			207
Chubb integration expenses																9			9
Income tax expense																395			395
Net income (loss)																$	(1,166	)	$	2,151

XML

Earnings per share (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Schedule Of Earnings Per Share, Basic And Diluted

	Three Months Ended				Nine Months Ended
	September 30				September 30
(in millions of U.S. dollars, except share and per share data)	2016		2015		2016		2015
Numerator:
Net income	$	1,360	$	528	$	2,525	$	2,151
Denominator:
Denominator for basic earnings per share:
Weighted-average shares outstanding	468,021,093		324,210,936		460,631,794		325,904,502
Denominator for diluted earnings per share:
Share-based compensation plans	3,375,269		2,962,484		3,439,017		3,269,724
Weighted-average shares outstanding and assumed conversions	471,396,362		327,173,420		464,070,811		329,174,226
Basic earnings per share	$	2.90	$	1.63	$	5.48	$	6.60
Diluted earnings per share	$	2.88	$	1.62	$	5.44	$	6.53
Potential anti-dilutive share conversions	1,306,710		1,907,815		1,635,337		1,503,830

XML

Information provided in connection with outstanding debt of subsidiaries (Tables)

9 Months Ended

Sep. 30, 2016

Information Provided In Connection With Outstanding Debt Of Subsidiaries [Abstract]

Condensed Consolidating Balance Sheet

Condensed Consolidating Balance Sheet at September 30, 2016

(in millions of U.S. dollars)	Chubb Limited (Parent Guarantor)		Chubb INA Holdings Inc. (Subsidiary Issuer)		Other Chubb Limited Subsidiaries		Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
Assets
Investments	$	25	$	812	$	100,199	$	—		$	101,036
Cash (1)	6		2		2,158		(1,296		)	870
Insurance and reinsurance balances receivable	—		—		11,392		(2,899		)	8,493
Reinsurance recoverable on losses and loss expenses	—		—		23,642		(10,194		)	13,448
Reinsurance recoverable on policy benefits	—		—		1,167		(972		)	195
Value of business acquired	—		—		368		—			368
Goodwill and other intangible assets	—		—		22,472		—			22,472
Investments in subsidiaries	38,403		50,316		—		(88,719		)	—
Due from subsidiaries and affiliates, net	11,186		—		—		(11,186		)	—
Other assets	5		366		18,856		(4,299		)	14,928
Total assets	$	49,625	$	51,496	$	180,254	$	(119,565	)	$	161,810
Liabilities
Unpaid losses and loss expenses	$	—	$	—	$	70,882	$	(9,535	)	$	61,347
Unearned premiums	—		—		18,773		(3,719		)	15,054
Future policy benefits	—		—		5,982		(972		)	5,010
Due to subsidiaries and affiliates, net	—		10,996		190		(11,186		)	—
Affiliated notional cash pooling programs (1)	927		369		—		(1,296		)	—
Repurchase agreements	—		—		1,406		—			1,406
Short-term debt	—		500		—		—			500
Long-term debt	—		12,610		11		—			12,621
Trust preferred securities	—		308		—		—			308
Other liabilities	326		1,588		19,416		(4,138		)	17,192
Total liabilities	1,253		26,371		116,660		(30,846		)	113,438
Total shareholders’ equity	48,372		25,125		63,594		(88,719		)	48,372
Total liabilities and shareholders’ equity	$	49,625	$	51,496	$	180,254	$	(119,565	)	$	161,810

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

Condensed Consolidating Balance Sheet at December 31, 2015

(in millions of U.S. dollars)	Chubb Limited (Parent Guarantor)		Chubb INA Holdings Inc. (Subsidiary Issuer)		Other Chubb Limited Subsidiaries		Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
Assets
Investments	$	28	$	7,839	$	58,384	$	—		$	66,251
Cash (1)	1		2		2,743		(971		)	1,775
Insurance and reinsurance balances receivable	—		—		6,075		(752		)	5,323
Reinsurance recoverable on losses and loss expenses	—		—		20,124		(8,738		)	11,386
Reinsurance recoverable on policy benefits	—		—		1,129		(942		)	187
Value of business acquired	—		—		395		—			395
Goodwill and other intangible assets	—		—		5,683		—			5,683
Investments in subsidiaries	29,612		18,386		—		(47,998		)	—
Due from subsidiaries and affiliates, net	644		1,800		—		(2,444		)	—
Other assets	8		457		14,434		(3,593		)	11,306
Total assets	$	30,293	$	28,484	$	108,967	$	(65,438	)	$	102,306
Liabilities
Unpaid losses and loss expenses	$	—	$	—	$	45,490	$	(8,187	)	$	37,303
Unearned premiums	—		—		10,243		(1,804		)	8,439
Future policy benefits	—		—		5,749		(942		)	4,807
Due to subsidiaries and affiliates, net	—		—		2,444		(2,444		)	—
Affiliated notional cash pooling programs (1)	882		89		—		(971		)	—
Repurchase agreements	—		—		1,404		—			1,404
Long-term debt	—		9,378		11		—			9,389
Trust preferred securities	—		307		—		—			307
Other liabilities	276		1,422		12,916		(3,092		)	11,522
Total liabilities	1,158		11,196		78,257		(17,440		)	73,171
Total shareholders’ equity	29,135		17,288		30,710		(47,998		)	29,135
Total liabilities and shareholders’ equity	$	30,293	$	28,484	$	108,967	$	(65,438	)	$	102,306

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

Condensed Consolidating Statement Of Operations and Comprehensive Income

Condensed Consolidating Statements of Operations and Comprehensive Income

For the Three Months Ended September 30, 2016	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	7,573		$	—		$	7,573
Net premiums earned	—			—			7,688			—			7,688
Net investment income	1			2			736			—			739
Equity in earnings of subsidiaries	1,292			748			—			(2,040		)	—
Net realized gains (losses) including OTTI	—			(2		)	102			—			100
Losses and loss expenses	—			—			4,269			—			4,269
Policy benefits	—			—			155			—			155
Policy acquisition costs and administrative expenses	15			12			2,259			—			2,286
Interest (income) expense	(93		)	233			12			—			152
Other (income) expense	(7		)	6			(90		)	—			(91		)
Amortization of purchased intangibles	—			—			4			—			4
Chubb integration expenses	12			16			87			—			115
Income tax expense (benefit)	6			(136		)	407			—			277
Net income	$	1,360		$	617		$	1,423		$	(2,040	)	$	1,360
Comprehensive income	$	1,376		$	627		$	1,439		$	(2,066	)	$	1,376

Condensed Consolidating Statements of Operations and Comprehensive Income

For the Three Months Ended September 30, 2015	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	4,709		$	—		$	4,709
Net premiums earned	—			—			4,719			—			4,719
Net investment income	1			1			547			—			549
Equity in earnings of subsidiaries	488			255			—			(743		)	—
Net realized gains (losses) including OTTI	—			(4		)	(393		)	—			(397		)
Losses and loss expenses	—			—			2,643			—			2,643
Policy benefits	—			—			89			—			89
Policy acquisition costs and administrative expenses	15			7			1,317			—			1,339
Interest (income) expense	(8		)	68			8			—			68
Other (income) expense	(51		)	(5		)	68			—			12
Amortization of purchased intangibles	—			—			51			—			51
Chubb integration expenses	1			8			—			—			9
Income tax expense (benefit)	4			(31		)	159			—			132
Net income	$	528		$	205		$	538		$	(743	)	$	528
Comprehensive income (loss)	$	(271	)	$	(265	)	$	(262	)	$	527		$	(271	)

Condensed Consolidating Statements of Operations and Comprehensive Income

Nine Months Ended September 30, 2016	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	21,207		$	—		$	21,207
Net premiums earned	—			—			21,690			—			21,690
Net investment income	3			9			2,109			—			2,121
Equity in earnings of subsidiaries	2,331			1,803			—			(4,134		)	—
Net realized gains (losses) including OTTI	(1		)	(3		)	(506		)	—			(510		)
Losses and loss expenses	—			—			12,197			—			12,197
Policy benefits	—			—			427			—			427
Policy acquisition costs and administrative expenses	48			144			6,668			—			6,860
Interest (income) expense	(266		)	681			36			—			451
Other (income) expense	(20		)	26			(98		)	—			(92		)
Amortization of purchased intangibles	—			—			16			—			16
Chubb integration expenses	29			56			276			—			361
Income tax expense (benefit)	17			(323		)	862			—			556
Net income	$	2,525		$	1,225		$	2,909		$	(4,134	)	$	2,525
Comprehensive income	$	4,457		$	2,687		$	4,841		$	(7,528	)	$	4,457

Condensed Consolidating Statements of Operations and Comprehensive Income

Nine Months Ended September 30, 2015	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net premiums written	$	—		$	—		$	13,569		$	—		$	13,569
Net premiums earned	—			—			13,006			—			13,006
Net investment income	2			2			1,658			—			1,662
Equity in earnings of subsidiaries	2,037			755			—			(2,792		)	—
Net realized gains (losses) including OTTI	—			(6		)	(354		)	—			(360		)
Losses and loss expenses	—			—			7,182			—			7,182
Policy benefits	—			—			384			—			384
Policy acquisition costs and administrative expenses	47			20			3,838			—			3,905
Interest (income) expense	(23		)	206			24			—			207
Other (income) expense	(149		)	(12		)	100			—			(61		)
Amortization of purchased intangibles	—			—			136			—			136
Chubb integration expenses	1			8			—			—			9
Income tax expense (benefit)	12			(84		)	467			—			395
Net income	$	2,151		$	613		$	2,179		$	(2,792	)	$	2,151
Comprehensive income (loss)	$	768		$	(332	)	$	795		$	(463	)	$	768

Condensed Consolidating Statement of Cash Flows

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2016	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net cash flows from operating activities	$	3,399		$	3,892		$	3,918		$	(7,372	)	$	3,837
Cash flows from investing activities
Purchases of fixed maturities available for sale	—			(154		)	(23,683		)	—			(23,837		)
Purchases of fixed maturities held to maturity	—			—			(189		)	—			(189		)
Purchases of equity securities	—			—			(100		)	—			(100		)
Sales of fixed maturities available for sale	—			66			13,797			—			13,863
Sales of equity securities	—			—			963			—			963
Maturities and redemptions of fixed maturities available for sale	—			59			6,877			—			6,936
Maturities and redemptions of fixed maturities held to maturity	—			—			627			—			627
Net change in short-term investments	—			7,627			4,239			—			11,866
Net derivative instruments settlements	—			(10		)	(171		)	—			(181		)
Acquisition of subsidiaries (net of cash acquired of $71)	—			(14,282		)	34			—			(14,248		)
Capital contribution	(2,330		)	(20		)	(2,330		)	4,680			—
Other	—			(3		)	29			—			26
Net cash flows (used for) from investing activities	(2,330		)	(6,717		)	93			4,680			(4,274		)
Cash flows from financing activities
Dividends paid on Common Shares	(851		)	—			—			—			(851		)
Proceeds from issuance of repurchase agreements	—			—			1,457			—			1,457
Repayment of repurchase agreements	—			—			(1,455		)	—			(1,455		)
Proceeds from share-based compensation plans, including windfall tax benefits	—			—			117			—			117
Dividend to parent company	—			—			(7,372		)	7,372			—
Advances (to) from affiliates	(258		)	219			39			—			—
Capital contribution	—			2,330			2,350			(4,680		)	—
Net proceeds from (payments to) affiliated notional cash pooling programs(1)	45			280			—			(325		)	—
Policyholder contract deposits	—			—			473			—			473
Policyholder contract withdrawals	—			—			(247		)	—			(247		)
Other	—			(4		)	—			—			(4		)
Net cash flows (used for) from financing activities	(1,064		)	2,825			(4,638		)	2,367			(510		)
Effect of foreign currency rate changes on cash and cash equivalents	—			—			42			—			42
Net increase (decrease) in cash	5			—			(585		)	(325		)	(905		)
Cash – beginning of period(1)	1			2			2,743			(971		)	1,775
Cash – end of period(1)	$	6		$	2		$	2,158		$	(1,296	)	$	870

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016 and December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

Condensed Consolidating Statement of Cash Flows

Nine Months Ended September 30, 2015	Chubb Limited (Parent Guarantor)			Chubb INA Holdings Inc. (Subsidiary Issuer)			Other Chubb Limited Subsidiaries			Consolidating Adjustments and Eliminations			Chubb Limited Consolidated
(in millions of U.S. dollars)
Net cash flows from (used for) operating activities	$	350		$	(46	)	$	2,671		$	(276	)	$	2,699
Cash flows from investing activities
Purchases of fixed maturities available for sale	—			—			(13,052		)	(8		)	(13,060		)
Purchases of fixed maturities held to maturity	—			—			(39		)	—			(39		)
Purchases of equity securities	—			—			(122		)	—			(122		)
Sales of fixed maturities available for sale	—			—			5,233			—			5,233
Sales of equity securities	—			—			150			—			150
Maturities and redemptions of fixed maturities    available for sale	—			—			5,257			—			5,257
Maturities and redemptions of fixed maturities held to maturity	—			—			552			—			552
Net change in short-term investments	—			215			206			—			421
Net derivative instruments settlements	—			(10		)	72			—			62
Acquisition of subsidiaries (net of cash acquired of $620)	—			—			259			—			259
Capital contribution	—			(625		)	—			625			—
Other	—			(25		)	(121		)	8			(138		)
Net cash flows from (used for) investing activities	—			(445		)	(1,605		)	625			(1,425		)
Cash flows from financing activities
Dividends paid on Common Shares	(644		)	—			—			—			(644		)
Common Shares repurchased	—			—			(758		)	—			(758		)
Proceeds from issuance of long-term debt	—			800			—			—			800
Proceeds from issuance of repurchase agreements	—			—			1,478			—			1,478
Repayment of long-term debt	—			(450		)	(1		)	—			(451		)
Repayment of repurchase agreements	—			—			(1,477		)	—			(1,477		)
Proceeds from share-based compensation plans, including windfall tax benefits	—			—			89			—			89
Dividend to parent company	—			—			(276		)	276			—
Advances (to) from affiliates	(416		)	272			144			—			—
Capital contribution	—			—			625			(625		)	—
Net proceeds from (payments to) affiliated notional cash pooling programs(1)	727			(121		)	—			(606		)	—
Policyholder contract deposits	—			—			351			—			351
Policyholder contract withdrawals	—			—			(159		)	—			(159		)
Other	—			(6		)	—			—			(6		)
Net cash flows used for financing activities	(333		)	495			16			(955		)	(777		)
Effect of foreign currency rate changes on cash and cash equivalents	—			—			(114		)	—			(114		)
Net increase in cash	17			4			968			(606		)	383
Cash – beginning of period(1)	—			1			1,209			(555		)	655
Cash – end of period(1)	$	17		$	5		$	2,177		$	(1,161	)	$	1,038

⁽¹⁾  Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2015 and December 31, 2014, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

XML

General Adoption of New Accounting Pronouncements (Details) $ in Millions	Dec. 31, 2015 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt Issuance Costs	$ 60
Long-term Debt [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt Issuance Costs	58
Trust Preferred Securities [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt Issuance Costs	$ 2

XML

Acquisitions (Detail) $ / shares in Units, $ in Millions			3 Months Ended				9 Months Ended
	Jan. 14, 2016 USD ($) $ / shares shares	Apr. 01, 2015 USD ($)	Sep. 30, 2016 USD ($) shares		Sep. 30, 2015 USD ($) shares		Sep. 30, 2016 USD ($) shares		Sep. 30, 2015 USD ($) shares		Dec. 31, 2015 USD ($)		Dec. 31, 2014 USD ($)	[3]
Business Acquisition [Line Items]
Other intangible assets			$ 6,991				$ 6,991				$ 887
Weighted-average shares outstanding | shares			468,021,093		324,210,936		460,631,794		325,904,502
Cash			$ 870	[1],[2]	$ 1,038	[3]	$ 870	[1],[2]	$ 1,038	[3]	1,775	[1],[4]	$ 655
Investments			101,036				101,036				66,251
Accrued investment income			915				915				513
Insurance and reinsurance balances receivable			8,493				8,493				5,323
Reinsurance recoverable on losses and loss expenses			13,448				13,448				11,386
Prepaid reinsurance premiums			2,449				2,449				2,082
Other assets			5,521				5,521				3,821
Unpaid losses and loss expenses			(61,347)				(61,347)				(37,303)
Unearned premiums			(15,054)				(15,054)				(8,439)
Insurance and reinsurance balances payable			(4,885)				(4,885)				(4,270)
Accounts payable, accrued expenses, and other liabilities			(9,748)				(9,748)				(6,205)
Long-term debt			(12,621)				(12,621)				(9,389)
Goodwill			15,481				15,481				$ 4,796
Chubb integration expenses			$ 115		9		361		9
The Chubb Corporation [Member]
Business Acquisition [Line Items]
Purchase price	$ 29,500
Goodwill, Purchase Accounting Adjustment							$ 85
Business Acquisition, Financing Of Acquisition With Cash	9,000
Senior notes issued to finance acquisition	$ 5,300
Weighted-average shares outstanding | shares	228,000,000
Per share exchange ratio	0.6019
Common shares issued by Chubb Limited | shares	137,000,000
Share Price | $ / shares	$ 111.02
Fair value of common shares issued by Chubb Limited to common shareholders of Chubb Corp	$ 15,204
Agreed cash price per share paid to common shareholders of Chubb Corp | $ / shares	$ 62.93
Payments to Acquire Businesses, Gross	$ 14,319
Attributed Value Equity Awards Assumed in Acquisition	323
Purchase price	29,846
Cash	71
Investments	42,967
Accrued investment income	337
Insurance and reinsurance balances receivable	2,981
Reinsurance recoverable on losses and loss expenses	1,645
Indefinite-Lived Intangible Assets	2,860
Finite lived intangible assets	4,795
Prepaid reinsurance premiums	280
Other assets	865
Unpaid losses and loss expenses	(22,906)
Unearned premiums	(7,033)
Insurance and reinsurance balances payable	(511)
Accounts payable, accrued expenses, and other liabilities	(1,935)
Deferred Tax Liabilities, Net	(1,335)
Long-term debt	(3,765)
Total identifiable net assets acquired	19,316
Goodwill	10,530
Chubb integration expenses					$ 9
Total Value of Equity Awards Issued in Acquisition	525
Fireman's Fund high net worth personal lines [Member]
Business Acquisition [Line Items]
Acquired assets fair value		$ 753
Other intangible assets		278
Payments to Acquire Businesses, Gross		365
Cash		629
Insurance and reinsurance balances receivable		124
Unpaid losses and loss expenses		(417)
Unearned premiums		(428)
Goodwill		196
Assumed liabilities fair value		$ 863
Minimum [Member]
Business Acquisition [Line Items]
Estimated Useful Life							1 year
Maximum [Member]
Business Acquisition [Line Items]
Estimated Useful Life							24 years
Additional Paid-in Capital [Member]
Business Acquisition [Line Items]
Attributed Value Equity Awards Assumed in Acquisition							$ (365)		(157)
Additional Paid-in Capital [Member] | The Chubb Corporation [Member]
Business Acquisition [Line Items]
Attributed Value Equity Awards Assumed in Acquisition	$ 323						$ 323		$ 0

[1] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016 and December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[2] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[3] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2015 and December 31, 2014, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[4] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

XML

Supplemental Financial Information for Acquisition (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition [Line Items]
Chubb integration expenses	$ 115	$ 9		$ 361	$ 9
Actual Revenue of Chubb Corp since Acquisition Date	2,656		$ 7,888
Actual Net Income of Chubb Corp since Acquisition Date	483		$ 1,064
Pro Forma Total Revenues	8,521	8,314		23,758	24,387
Pro Forma Net Income	$ 1,345	$ 1,036		$ 2,591	$ 3,194
Pro Forma Earnings Per Share, Basic	$ 2.87	$ 2.23		$ 5.54	$ 6.85
Pro Forma Earnings Per Share, Diluted	$ 2.85	$ 2.21		$ 5.50	$ 6.78
The Chubb Corporation [Member]
Business Acquisition [Line Items]
Chubb integration expenses		$ 9

XML

Investments (Narrative) (Detail) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) Security	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) Security	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Investment [Line Items]
Total number of fixed maturities | Security	31,902		31,902
Number of equity securities in an unrealized loss position | Security	73		73
Total number of equity securities | Security	326		326
Largest single unrealized loss in the equity securities	$ (3)		$ (3)
Restricted assets in fixed maturities and short-term investments	19,400		19,400		$ 16,900
Restricted assets in cash	162		$ 162		110
Moodys Historical Mean Recovery Rate			42.00%
Company Assumed Recovery Rate			32.00%
Net unrealized appreciation (depreciation) included in OCI	13	$ (4)	$ 57	$ 0
Unrealized appreciation (depreciation) portion of AOCI with OTTI included in AOCI	$ 7		$ 7		$ (35)
Number of fixed maturities in an unrealized loss position | Security	3,376		3,376
Percentage of mortgage-backed securities represented by investments in US government agency bonds	81.00%		81.00%		81.00%
Largest single unrealized loss in the fixed maturities	$ (2)		$ (2)
Corporate [Member]
Investment [Line Items]
Credit losses recognized in net income	4	14	28	23
Collateralized Mortgage Backed Securities [Member]
Investment [Line Items]
Credit losses recognized in net income	$ 1	$ 0	$ 1	$ 0

XML

Investments Investments (Schedule Of Amortized Cost and Fair Value of Available-for-sale Securities and Related OTTI Recognized in AOCI) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available for sale, at amortized cost	$ 78,630	$ 43,149
Available-for-sale,Gross Unrealized Gain	2,858	1,168
Available-for-sale, Gross Unrealized Depreciation	(130)	(730)
Available for sale, Fair Value	81,358	43,587
Available for sale, OTTI recognized in AOCI	(19)	(42)
US Treasury and Government [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, at amortized cost	2,626	2,481
Available-for-sale,Gross Unrealized Gain	84	52
Available-for-sale, Gross Unrealized Depreciation	(2)	(5)
Available for sale, Fair Value	2,708	2,528
Available for sale, OTTI recognized in AOCI	0	0
Foreign Government Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, at amortized cost	21,499	13,190
Available-for-sale,Gross Unrealized Gain	1,057	468
Available-for-sale, Gross Unrealized Depreciation	(48)	(213)
Available for sale, Fair Value	22,508	13,445
Available for sale, OTTI recognized in AOCI	(9)	(13)
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, at amortized cost	22,860	15,028
Available-for-sale,Gross Unrealized Gain	977	355
Available-for-sale, Gross Unrealized Depreciation	(64)	(454)
Available for sale, Fair Value	23,773	14,929
Available for sale, OTTI recognized in AOCI	(9)	(28)
Collateralized Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, at amortized cost	13,083	9,827
Available-for-sale,Gross Unrealized Gain	383	183
Available-for-sale, Gross Unrealized Depreciation	(5)	(52)
Available for sale, Fair Value	13,461	9,958
Available for sale, OTTI recognized in AOCI	(1)	(1)
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale, at amortized cost	18,562	2,623
Available-for-sale,Gross Unrealized Gain	357	110
Available-for-sale, Gross Unrealized Depreciation	(11)	(6)
Available for sale, Fair Value	18,908	2,727
Available for sale, OTTI recognized in AOCI	$ 0	$ 0

XML

Investments (Schedule Of Amortized Cost And Fair Value Of Fixed Maturities And Related Other-Than-Temporary Impairment Recognized In Accumulated Other Comprehensive Income) (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Investment [Line Items]
Held to maturity, Amortized Cost	$ 10,927	$ 8,430
Held to maturity, Gross Unrealized Appreciation	441	190
Held to maturity, Gross Unrealized Depreciation	(2)	(68)
Held to maturity, at Fair Value	11,366	8,552
U.S. Treasury And Agency [Member]
Investment [Line Items]
Held to maturity, Amortized Cost	709	733
Held to maturity, Gross Unrealized Appreciation	26	13
Held to maturity, Gross Unrealized Depreciation	0	(1)
Held to maturity, at Fair Value	735	745
Held to maturity, OTTI recognized in AOCI	0	0
Foreign [Member]
Investment [Line Items]
Held to maturity, Amortized Cost	694	763
Held to maturity, Gross Unrealized Appreciation	45	30
Held to maturity, Gross Unrealized Depreciation	0	(8)
Held to maturity, at Fair Value	739	785
Held to maturity, OTTI recognized in AOCI	0	0
Corporate [Member]
Investment [Line Items]
Held to maturity, Amortized Cost	2,852	3,054
Held to maturity, Gross Unrealized Appreciation	131	57
Held to maturity, Gross Unrealized Depreciation	(2)	(55)
Held to maturity, at Fair Value	2,981	3,056
Held to maturity, OTTI recognized in AOCI	0	0
Collateralized Mortgage Backed Securities [Member]
Investment [Line Items]
Held to maturity, Amortized Cost	1,507	1,707
Held to maturity, Gross Unrealized Appreciation	72	38
Held to maturity, Gross Unrealized Depreciation	0	(2)
Held to maturity, at Fair Value	1,579	1,743
Held to maturity, OTTI recognized in AOCI	0	0
States, Municipalities, And Political Subdivisions [Member]
Investment [Line Items]
Held to maturity, Amortized Cost	5,165	2,173
Held to maturity, Gross Unrealized Appreciation	167	52
Held to maturity, Gross Unrealized Depreciation	0	(2)
Held to maturity, at Fair Value	5,332	2,223
Held to maturity, OTTI recognized in AOCI	$ 0	$ 0

XML

Investments (Schedule Of Fixed Maturities By Contractual Maturity) (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Available for sale, Due in 1 year or less, Amortized Cost	$ 3,402	$ 1,856
Available for sale, Due after 1 year through 5 years, Amortized Cost	25,152	14,936
Available for sale, Due after 5 years though 10 years, Amortized Cost	26,702	12,258
Available for sale, Due after 10 years, Amortized Cost	10,291	4,272
Available for sale, Subtotal, Amortized Cost	65,547	33,322
Available for sale, Mortgage-backed securities, Amortized Cost	13,083	9,827
Available for sale, at amortized cost	78,630	43,149
Available for sale, Fair Value	81,358	43,587
Held to maturity, Due in 1 year or less, Amortized Cost	458	492
Held to maturity, Due after 1 year through 5 years, Amortized Cost	2,716	2,443
Held to maturity, Due after 5 years through 10 years, Amortized Cost	2,815	2,292
Held to maturity, Due after 10 years, Amortized Cost	3,431	1,496
Held to maturity, Subtotal, Amortized Cost	9,420	6,723
Held to maturity, Mortgage backed securities, Amortized Cost	1,507	1,707
Available for sale, Due in 1 year or less, Fair Value	3,413	1,865
Available for sale, Due after 1 year through 5 years, Fair Value	25,865	15,104
Available for sale, Due after 5 years through 10 years, Fair Value	27,645	12,173
Available for sale, Due after 10 years, Fair Value	10,974	4,487
Available for sale, Subtotal, Fair Value	67,897	33,629
Available for sale, Mortgage backed securities, Fair Value	13,461	9,958
Held to maturity, Due in 1 year or less, Fair Value	462	495
Held to maturity, Due after 1 year through 5, Fair Value	2,807	2,517
Held to maturity, Due after 5 years through 10 years, Fair Value	2,919	2,313
Held to maturity, Due after 10 years, Fair Value	3,599	1,484
Held to maturity, Subtotal, Fair Value	9,787	6,809
Held to maturity, Mortgage backed securities, Fair Value	1,579	1,743
Held to maturity, Amortized Cost	10,927	8,430
Held to maturity, Fair Value	$ 11,366	$ 8,552

XML

Investments (Schedule Of Cost And Fair Value Of Equity Securities) (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Cost	$ 695	$ 441
Gross unrealized appreciation	122	74
Gross unrealized depreciation	(14)	(18)
Equity securities, at fair value	$ 803	$ 497

XML

Investments (Net Realized Gains (Losses) And Losses Included In Net Realized Gains (Losses) And Other Comprehensive Income) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Investments, Debt and Equity Securities [Abstract]
OTTI on fixed maturities, gross	$ (7)	$ (31)	$ (85)	$ (57)
OTTI on fixed maturities recognized in OCI (pre-tax)	0	5	8	11
OTTI on fixed maturities, net	(7)	(26)	(77)	(46)
Gross realized gains excluding OTTI	47	19	149	91
Gross realized losses excluding OTTI	(13)	(44)	(228)	(95)
Fixed Maturities Net Realized Gains Losses Total	27	(51)	(156)	(50)
Other Than Temporary Impairment on Equity Securities	(1)	(3)	(7)	(4)
Equity securities, Gross realized gains excluding OTTI	19	10	63	43
Equity securities, Gross realized losses excluding OTTI	(12)	(5)	(17)	(7)
Equity Securities Net Realized Gains Losses Total	6	2	39	32
Other Than Temporary Impairment on Other Investment	(4)	(1)	(7)	(1)
Foreign exchange gains (losses)	29	(2)	46	(73)
Investment and embedded derivative instruments	1	(22)	(85)	6
Fair value adjustments on insurance derivative	89	(396)	(270)	(337)
S&P put options and futures	(45)	83	(88)	69
Other derivative instruments	3	(9)	1	(10)
Other	(6)	(1)	10	4
Total net realized gains (losses) (includes $33, $(49), $(117), and $(18) reclassified from AOCI)	$ 100	$ (397)	$ (510)	$ (360)

XML

Investments (Roll-Forward Of Pre-Tax Credit Losses Related To Fixed Maturities For Which Portion Of Other-Than-Temporary Impairment Was Recognized In Other Comprehensive Income) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Roll-Forward Of Pre-Tax Credit Losses Related To Fixed Maturities For Which Portion Of Other-Than-Temporary Impairment Was Recognized In Other Comprehensive Income [Roll Forward]
Balance of credit losses related to securities still held – beginning of period	$ 51	$ 23	$ 53	$ 28
Additions where no OTTI was previously recorded	4	8	16	15
Additions where an OTTI was previously recorded	1	6	13	8
Reductions for securities sold during the period	(11)	(5)	(37)	(19)
Balance of credit losses related to securities still held – end of period	$ 45	$ 32	$ 45	$ 32

XML

Investments (Aggregate Fair Value And Gross Unrealized Loss By Length Of Time Security Has Continuously Been In Unrealized Loss Position) (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Investment [Line Items]
Fair Value, 0-12 Months	$ 8,106	$ 16,763
Gross Unrealized Loss, 0-12 Months	(97)	(601)
Fair Value, Over 12 Months	1,501	1,885
Gross Unrealized Loss, Over 12 Months	(76)	(226)
Total Fair Value	9,607	18,648
Total Gross Unrealized Loss	(173)	(827)
U.S. Treasury And Agency [Member]
Investment [Line Items]
Fair Value, 0-12 Months	436	996
Gross Unrealized Loss, 0-12 Months	(2)	(5)
Fair Value, Over 12 Months	0	153
Gross Unrealized Loss, Over 12 Months	0	(1)
Total Fair Value	436	1,149
Total Gross Unrealized Loss	(2)	(6)
Foreign [Member]
Investment [Line Items]
Fair Value, 0-12 Months	1,899	3,953
Gross Unrealized Loss, 0-12 Months	(20)	(148)
Fair Value, Over 12 Months	409	436
Gross Unrealized Loss, Over 12 Months	(28)	(73)
Total Fair Value	2,308	4,389
Total Gross Unrealized Loss	(48)	(221)
Corporate [Member]
Investment [Line Items]
Fair Value, 0-12 Months	1,559	7,518
Gross Unrealized Loss, 0-12 Months	(21)	(371)
Fair Value, Over 12 Months	750	738
Gross Unrealized Loss, Over 12 Months	(45)	(138)
Total Fair Value	2,309	8,256
Total Gross Unrealized Loss	(66)	(509)
Collateralized Mortgage Backed Securities [Member]
Investment [Line Items]
Fair Value, 0-12 Months	1,039	3,399
Gross Unrealized Loss, 0-12 Months	(3)	(42)
Fair Value, Over 12 Months	292	516
Gross Unrealized Loss, Over 12 Months	(2)	(12)
Total Fair Value	1,331	3,915
Total Gross Unrealized Loss	(5)	(54)
States, Municipalities, And Political Subdivisions [Member]
Investment [Line Items]
Fair Value, 0-12 Months	2,807	556
Gross Unrealized Loss, 0-12 Months	(10)	(6)
Fair Value, Over 12 Months	50	42
Gross Unrealized Loss, Over 12 Months	(1)	(2)
Total Fair Value	2,857	598
Total Gross Unrealized Loss	(11)	(8)
Fixed Maturities [Member]
Investment [Line Items]
Fair Value, 0-12 Months	7,740	16,422
Gross Unrealized Loss, 0-12 Months	(56)	(572)
Fair Value, Over 12 Months	1,501	1,885
Gross Unrealized Loss, Over 12 Months	(76)	(226)
Total Fair Value	9,241	18,307
Total Gross Unrealized Loss	(132)	(798)
Equity Securities [Member]
Investment [Line Items]
Fair Value, 0-12 Months	133	131
Gross Unrealized Loss, 0-12 Months	(14)	(18)
Fair Value, Over 12 Months	0	0
Gross Unrealized Loss, Over 12 Months	0	0
Total Fair Value	133	131
Total Gross Unrealized Loss	(14)	(18)
Other Long-term Investments [Member]
Investment [Line Items]
Fair Value, 0-12 Months	233	210
Gross Unrealized Loss, 0-12 Months	(27)	(11)
Fair Value, Over 12 Months	0	0
Gross Unrealized Loss, Over 12 Months	0	0
Total Fair Value	233	210
Total Gross Unrealized Loss	$ (27)	$ (11)

XML

Investments (Schedule Of Components Of Restricted Assets) (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Trust funds	$ 13,093	$ 11,862
Deposits with non-U.S. regulatory authorities	2,338	2,075
Deposits with U.S. regulatory authorities	2,232	1,242
Assets pledged under repurchase agreements	1,464	1,459
Other pledged assets	433	392
Total restricted assets	$ 19,560	$ 17,030

XML

Fair Value Measurements (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Fair Value Measurements Of Financial Instruments [Line Items]
Other Long-term Investments	$ 4,400		$ 4,400		$ 3,291
Fair Value, Level 1 to Level 2 transfers, Amount	0	$ 0	0	$ 0
Fair Value, Level 2 to Level 1 Transfers, Amount	0	$ 0	$ 0	$ 0
Minimum [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Notice Period For Redemption For Alternative Investments Investment Funds			5 days
Maximum [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Notice Period For Redemption For Alternative Investments Investment Funds			120 days
Equity Option [Member]
Fair Value Measurements Of Financial Instruments [Line Items]
Derivative Asset, Fair Value, Gross Liability	$ 0		$ 0

XML

Fair Value Measurements (Financial Instruments Measured At Fair Value On Recurring Basis) (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	$ 81,358	$ 43,587
Equity securities, at fair value	803	497
Other investments (cost – $4,170 and $2,993)	4,400	3,291
Securities lending collateral	1,140	1,046
Other Other investment [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Other investments (cost – $4,170 and $2,993)	25	25
Investment Funds Limited Partnerships Partially Owned Investment Companies Fair Value [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Other investments (cost – $4,170 and $2,993)	3,498	2,477
Fair Value, Measurements, Recurring [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	81,358	43,587
Equity securities, at fair value	803	497
Short-term investments	3,548	10,446
Other investments (cost – $4,170 and $2,993)	877	789
Securities lending collateral	1,140	1,046
Investment derivative instruments, assets	20	12
Other Derivative Instruments Fair Value	14
Separate Account Assets	1,840	1,552
Total assets measured at fair value	89,600	57,929
Investment derivative instruments, liabilities	34	13
Other derivative instruments, liability	8	10
GLB (2)	883	609
Total liabilities measured at fair value	925	632
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	755	284
Equity securities, at fair value	37	16
Short-term investments	62
Other investments (cost – $4,170 and $2,993)	223	212
Other Derivative Instruments Fair Value	0
Total assets measured at fair value	1,077	512
Other derivative instruments, liability	8	6
GLB (2)	883	609
Total liabilities measured at fair value	891	615
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	2,155	1,712
Equity securities, at fair value	766	481
Short-term investments	2,127	7,171
Other investments (cost – $4,170 and $2,993)	404	347
Investment derivative instruments, assets	20	12
Other Derivative Instruments Fair Value	14
Separate Account Assets	1,743	1,464
Total assets measured at fair value	7,229	11,187
Investment derivative instruments, liabilities	34	13
Other derivative instruments, liability		4
Total liabilities measured at fair value	34	17
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	78,448	41,591
Short-term investments	1,359	3,275
Other investments (cost – $4,170 and $2,993)	250	230
Securities lending collateral	1,140	1,046
Other Derivative Instruments Fair Value	0
Separate Account Assets	97	88
Total assets measured at fair value	81,294	46,230
Fair Value, Measurements, Recurring [Member] | U.S. Treasury And Agency [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	2,708	2,528
Fair Value, Measurements, Recurring [Member] | U.S. Treasury And Agency [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	2,155	1,712
Fair Value, Measurements, Recurring [Member] | U.S. Treasury And Agency [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	553	816
Fair Value, Measurements, Recurring [Member] | Foreign [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	22,508	13,445
Fair Value, Measurements, Recurring [Member] | Foreign [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	103	57
Fair Value, Measurements, Recurring [Member] | Foreign [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	22,405	13,388
Fair Value, Measurements, Recurring [Member] | Corporate [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	23,773	14,929
Fair Value, Measurements, Recurring [Member] | Corporate [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	606	174
Fair Value, Measurements, Recurring [Member] | Corporate [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	23,167	14,755
Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	13,461	9,958
Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	46	53
Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	13,415	9,905
Fair Value, Measurements, Recurring [Member] | States, Municipalities, And Political Subdivisions [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	18,908	2,727
Fair Value, Measurements, Recurring [Member] | States, Municipalities, And Political Subdivisions [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Available for sale, Fair Value	18,908	2,727
Guaranteed Minimum Income Benefit [Member]
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Guaranteed Benefit Liability, Net	$ 1,200	$ 888	$ 1,000	$ 615	$ 663

XML

Fair Value Measurements (Fair Value And Maximum Future Funding Commitments Related To Investments) (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Maximum future funding commitments	$ 1,965	$ 824
Fair Value	$ 3,498	2,477
Minimum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Notice Period For Redemption For Alternative Investments Investment Funds	5 days
Maximum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Notice Period For Redemption For Alternative Investments Investment Funds	120 days
Financial [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Maximum future funding commitments	$ 188	105
Fair Value	$ 549	$ 300
Financial [Member] | Minimum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	5 years	5 years
Financial [Member] | Maximum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	9 years	9 years
Real Assets [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Maximum future funding commitments	$ 274	$ 140
Fair Value	$ 520	$ 474
Real Assets [Member] | Minimum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	3 years	3 years
Real Assets [Member] | Maximum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	7 years	7 years
Distressed [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Maximum future funding commitments	$ 196	$ 218
Fair Value	$ 463	$ 261
Distressed [Member] | Minimum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	5 years	5 years
Distressed [Member] | Maximum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	9 years	9 years
Private Credit [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Maximum future funding commitments	$ 294	$ 209
Fair Value	$ 241	$ 265
Private Credit [Member] | Minimum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	3 years	3 years
Private Credit [Member] | Maximum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	7 years	7 years
Traditional [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Maximum future funding commitments	$ 999	$ 152
Fair Value	$ 1,458	$ 895
Traditional [Member] | Minimum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	3 years	3 years
Traditional [Member] | Maximum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	9 years	9 years
Vintage [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Maximum future funding commitments	$ 14
Fair Value	$ 23	$ 13
Vintage [Member] | Minimum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	1 year	1 year
Vintage [Member] | Maximum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Expected liquidation period of underlying assets	2 years	2 years
Investment Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 244	$ 269

XML

Fair Value Measurements (Schedule Of Significant Unobservable Inputs Used In Level 3 Liability Valuations) (Detail) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2016		Jun. 30, 2016	[3]	Dec. 31, 2015		Sep. 30, 2015	[2],[3]	Jun. 30, 2015	[3]	Dec. 31, 2014	[3]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Valuation Technique	[1]	Actuarial model
Minimum [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Significant Unobservable Inputs Lapse rate	[1]	1.00%
Significant Unobservable Inputs Annuitization rate	[1]	0.00%
Maximum [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Significant Unobservable Inputs Lapse rate	[1]	30.00%
Significant Unobservable Inputs Annuitization rate	[1]	55.00%
Guaranteed Minimum Income Benefit [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		$ 883	[2]	$ 971		$ 609	[3]	$ 744		$ 347		$ 406
Fair Value, Inputs, Level 3 [Member] | Guaranteed Minimum Income Benefit [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value		$ 883	[3]			$ 609

[1] Discussion of the most significant inputs used in the fair value measurement of GLB and the sensitivity of those assumptions is included within Note 4 a) Guaranteed living benefits.

[2] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $615 million at June 30, 2015, which includes a fair value derivative adjustment of $744 million and $347 million, respectively. Assets Liabilities Nine Months EndedAvailable-for-Sale Debt Securities EquitysecuritiesShort-term investmentsOtherinvestments OtherderivativeinstrumentsGLB(1)September 30, 2016Foreign Corporatesecurities MBS (in millions of U.S. dollars) Balance–Beginning of Period$57 $174 $53 $16$—$212 $6$609Transfers into Level 39 18 — ——— ——Transfers out of Level 3(2) — — ——— ——Change in Net Unrealized Gains (Losses) included in OCI8 17 — 2—4 ——Net Realized Gains/Losses(6) (12) — 1—— 2274Purchases (2)52 472 1 236222 2—Sales(10) (48) (8) (5)—— ——Settlements(5) (15) — ——(15) (2)—Balance–End of Period$103 $606 $46 $37$62$223 $8$883Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date$(5) $(11) $— $—$—$— $2$274(1) Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.(2) Includes acquired invested assets as a result of the Chubb Corp acquisition. Assets LiabilitiesNine Months Ended Available-for-Sale Debt Securities Other investments OtherderivativeinstrumentsGLB(1)September 30, 2015 Foreign Corporatesecurities MBS Equitysecurities (in millions of U.S. dollars) Balance–Beginning of Period $22 $187 $15 $2 $204 $4$406Transfers into Level 3 29 15 — — — ——Change in Net Unrealized Gains (Losses) included in OCI (1) 1 — 2 (7) ——Net Realized Gains/Losses (1) (4) — (2) — 3338Purchases 9 38 41 2 21 ——Sales (1) (10) (1) — — ——Settlements (4) (44) (1) — (9) ——Balance–End of Period $53$183$54 $4$209 $7$744Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date $(1) $(2) $— $(2) $— $3$338(1) Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $663 million at December 31, 2014, which includes a fair value derivative adjustment of $744 million and $406 million, respectively.

[3] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

XML

Fair Value Measurements (Assets Measured At Fair Value Using Significant Unobservable Inputs) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Document Period End Date			Sep. 30, 2016
Foreign [Member] | Available-for-sale Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	$ 87	$ 56	$ 57	$ 22
Transfers Into Level 3, Asset	0	1	9	29
Transfers out of Level 3, Assets			(2)
Change in Net Unrealized Gains (Losses) included in OCI, Assets	1	(1)	8	(1)
Net Realized Gains/Losses, Assets	0	(1)	(6)	(1)
Purchases, Assets	20	0	52	9
Sales, Assets	(2)	0	(10)	(1)
Settlements, Assets	(1)	(4)	(5)	(4)
Balance-End of Period, Assets	103	53	103	53
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	0	(1)	(5)	(1)
Corporate [Member] | Available-for-sale Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	281	167	174	187
Transfers Into Level 3, Asset	0	2	18	15
Transfers out of Level 3, Assets			0
Change in Net Unrealized Gains (Losses) included in OCI, Assets	(6)	(1)	17	1
Net Realized Gains/Losses, Assets	(4)	(1)	(12)	(4)
Purchases, Assets	348	22	472	38
Sales, Assets	(18)	(5)	(48)	(10)
Settlements, Assets	(7)	(3)	(15)	(44)
Balance-End of Period, Assets	606	183	606	183
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	(4)	0	(11)	(2)
Collateralized Mortgage Backed Securities [Member] | Available-for-sale Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	49	55	53	15
Transfers Into Level 3, Asset	0	0	0	0
Transfers out of Level 3, Assets			0
Change in Net Unrealized Gains (Losses) included in OCI, Assets	0	0	0	0
Net Realized Gains/Losses, Assets	0	0	0	0
Purchases, Assets	0	0	1	41
Sales, Assets	(3)	(1)	(8)	(1)
Settlements, Assets	0	0	0	(1)
Balance-End of Period, Assets	46	54	46	54
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	0	0	0	0
Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	37	2	16	2
Transfers Into Level 3, Asset	0	0	0	0
Transfers out of Level 3, Assets			0
Change in Net Unrealized Gains (Losses) included in OCI, Assets	(3)	(2)	2	2
Net Realized Gains/Losses, Assets	0	(1)	1	(2)
Purchases, Assets	0	1	23	2
Sales, Assets	(3)	0	(5)	0
Settlements, Assets	0	0	0	0
Balance-End of Period, Assets	37	4	37	4
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	0	(1)	0	(2)
Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	50		0
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	12		62
Sales, Assets	0		0
Settlements, Assets	0		0
Balance-End of Period, Assets	62		62
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	0		0
Other Long-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance- Beginning of Period, Assets	216	214	212	204
Transfers Into Level 3, Asset	0	0	0	0
Transfers out of Level 3, Assets			0
Change in Net Unrealized Gains (Losses) included in OCI, Assets	(4)	7	4	(7)
Net Realized Gains/Losses, Assets	0	0	0	0
Purchases, Assets	8	5	22	21
Sales, Assets	0	0	0	0
Settlements, Assets	(5)	(3)	(15)	(9)
Balance-End of Period, Assets	223	209	223	209
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Assets	$ 0	$ 0	$ 0	$ 0

XML

Fair value measurements Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015		Sep. 30, 2016		Sep. 30, 2015		Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Guaranteed Minimum Income Benefit [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Reported liabilities		$ 1,200	$ 1,000		$ 1,200		$ 1,000		$ 888	$ 615	$ 663
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance - Beginning of Period, Liabilities	[1]	971	347		609		406
Transfers into level 3, liability		0	0		0		0
Change in Net Unrealized Gains (Losses) included in OCI, Liabilities		0	0		0		0
Net Realized Gains/Losses, Liabilities		(88)	397		274		338
Transfers out of Level 3, Liabilities					0
Purchases, Liabilities		0	0		0		0
Sales, Liabilities		0	0		0		0
Settlements, Liabilities		0	0		0		0
Balance - End of Period, Liabilities	[2]	883	744	[1]	883		744	[1]
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Liabilities		(88)	397		274	[2]	338	[2]
Guaranteed Minimum Income Benefit [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance - Beginning of Period, Liabilities					609
Balance - End of Period, Liabilities	[1]	883			883
Other Derivative Instruments Fair Value [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance - Beginning of Period, Liabilities		10	3		6		4
Transfers into level 3, liability			0		0		0
Change in Net Unrealized Gains (Losses) included in OCI, Liabilities			0		0		0
Net Realized Gains/Losses, Liabilities		0	4		2		3
Transfers out of Level 3, Liabilities					0
Purchases, Liabilities		0	0		2		0
Sales, Liabilities			0		0		0
Settlements, Liabilities			0		2		0
Balance - End of Period, Liabilities		8	7		8		7
Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date, Liabilities		$ 0	$ 4		$ 2		$ 3

[1] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

[2] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $615 million at June 30, 2015, which includes a fair value derivative adjustment of $744 million and $347 million, respectively. Assets Liabilities Nine Months EndedAvailable-for-Sale Debt Securities EquitysecuritiesShort-term investmentsOtherinvestments OtherderivativeinstrumentsGLB(1)September 30, 2016Foreign Corporatesecurities MBS (in millions of U.S. dollars) Balance–Beginning of Period$57 $174 $53 $16$—$212 $6$609Transfers into Level 39 18 — ——— ——Transfers out of Level 3(2) — — ——— ——Change in Net Unrealized Gains (Losses) included in OCI8 17 — 2—4 ——Net Realized Gains/Losses(6) (12) — 1—— 2274Purchases (2)52 472 1 236222 2—Sales(10) (48) (8) (5)—— ——Settlements(5) (15) — ——(15) (2)—Balance–End of Period$103 $606 $46 $37$62$223 $8$883Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date$(5) $(11) $— $—$—$— $2$274(1) Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.(2) Includes acquired invested assets as a result of the Chubb Corp acquisition. Assets LiabilitiesNine Months Ended Available-for-Sale Debt Securities Other investments OtherderivativeinstrumentsGLB(1)September 30, 2015 Foreign Corporatesecurities MBS Equitysecurities (in millions of U.S. dollars) Balance–Beginning of Period $22 $187 $15 $2 $204 $4$406Transfers into Level 3 29 15 — — — ——Change in Net Unrealized Gains (Losses) included in OCI (1) 1 — 2 (7) ——Net Realized Gains/Losses (1) (4) — (2) — 3338Purchases 9 38 41 2 21 ——Sales (1) (10) (1) — — ——Settlements (4) (44) (1) — (9) ——Balance–End of Period $53$183$54 $4$209 $7$744Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date $(1) $(2) $— $(2) $— $3$338(1) Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $663 million at December 31, 2014, which includes a fair value derivative adjustment of $744 million and $406 million, respectively.

XML

Fair Value Measurements (Carrying Values And Fair Values Of Financial Instruments Not Measured At Fair Value) (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	$ 11,366	$ 8,552
Repurchase agreements	1,406	1,404
Total liabilities	113,438	73,171
Long-term debt	12,621	9,389
Short-term debt	500	0
Trust preferred securities	308	307
Held-to-maturity Securities	10,927	8,430
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	628	583
Repurchase agreements	0	0
Total liabilities	0	0
Long-term Debt, Fair Value	0	0
Short-term Debt, Fair Value	0
Trust preferred securities	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	10,725	7,955
Repurchase agreements	1,406	1,404
Total liabilities	16,139	11,528
Long-term Debt, Fair Value	13,762	9,678
Short-term Debt, Fair Value	508
Trust preferred securities	463	446
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	13	14
Repurchase agreements	0	0
Total liabilities	0	0
Long-term Debt, Fair Value	0	0
Short-term Debt, Fair Value	0
Trust preferred securities	0	0
U.S. Treasury And Agency [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	628	583
U.S. Treasury And Agency [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	107	162
U.S. Treasury And Agency [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	0	0
Foreign [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	0	0
Foreign [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	739	785
Foreign [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	0	0
Corporate [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	0	0
Corporate [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	2,968	3,042
Corporate [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	13	14
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	0	0
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	1,579	1,743
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	0	0
States, Municipalities, And Political Subdivisions [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	0	0
States, Municipalities, And Political Subdivisions [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	5,332	2,223
States, Municipalities, And Political Subdivisions [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	0	0
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	11,366	8,552
Repurchase agreements	1,406	1,404
Total liabilities	16,139	11,528
Long-term Debt, Fair Value	13,762	9,678
Short-term Debt, Fair Value	508
Trust preferred securities	463	446
Estimate of Fair Value Measurement [Member] | U.S. Treasury And Agency [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	735	745
Estimate of Fair Value Measurement [Member] | Foreign [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	739	785
Estimate of Fair Value Measurement [Member] | Corporate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	2,981	3,056
Estimate of Fair Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	1,579	1,743
Estimate of Fair Value Measurement [Member] | States, Municipalities, And Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities, Fair Value	5,332	2,223
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Repurchase agreements	1,406	1,404
Total liabilities	14,835	11,100
Long-term debt	12,621	9,389
Short-term debt	500
Trust preferred securities	308	307
Held-to-maturity Securities	10,927	8,430
Reported Value Measurement [Member] | U.S. Treasury And Agency [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities	709	733
Reported Value Measurement [Member] | Foreign [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities	694	763
Reported Value Measurement [Member] | Corporate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities	2,852	3,054
Reported Value Measurement [Member] | Collateralized Mortgage Backed Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities	1,507	1,707
Reported Value Measurement [Member] | States, Municipalities, And Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Held-to-maturity Securities	$ 5,165	$ 2,173

XML

Assumed Life Reinsurance Programs Involving Minimum Benefit Guarantees Under Annuity Contracts (Schedule Of Guaranteed Minimum Benefits Income And Expense) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Net premiums earned	$ 7,688	$ 4,719	$ 21,690	$ 13,006
Policy benefits and other reserve adjustments	155	89	427	384
Net realized gains (losses)	100	(397)	(510)	(360)
Guaranteed Minimum Death Benefit [Member]
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Net premiums earned	15	15	42	47
Policy benefits and other reserve adjustments	11	5	34	25
Guaranteed Minimum Income Benefit [Member]
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Net premiums earned	28	30	88	92
Policy benefits and other reserve adjustments	9	15	24	34
Net realized gains (losses)	86	(397)	(285)	(338)
Loss recognized in Net income	105	(382)	(221)	(280)
Less: Net cash received	15	20	57	74
Net (increase) decrease in liability	$ 90	$ (402)	$ (278)	$ (354)

XML

Assumed Life Reinsurance Programs Involving Minimum Benefit Guarantees Under Annuity Contracts (Narrative) (Detail) - USD ($) $ in Millions	Sep. 30, 2016		Jun. 30, 2016	[2]	Dec. 31, 2015		Sep. 30, 2015		Jun. 30, 2015		Dec. 31, 2014
Guaranteed Minimum Death Benefit [Member]
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Reported liabilities	$ 119				$ 117
Guaranteed Minimum Income Benefit [Member]
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Reported liabilities	1,200				888		$ 1,000		$ 615		$ 663
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	883	[1]	$ 971		609	[2]	$ 744	[1],[2]	$ 347	[2]	$ 406	[2]
Fair Value, Inputs, Level 3 [Member] | Guaranteed Minimum Income Benefit [Member]
Liabilities for Guarantees on Long-Duration Contracts [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	$ 883	[2]			$ 609

[1] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $615 million at June 30, 2015, which includes a fair value derivative adjustment of $744 million and $347 million, respectively. Assets Liabilities Nine Months EndedAvailable-for-Sale Debt Securities EquitysecuritiesShort-term investmentsOtherinvestments OtherderivativeinstrumentsGLB(1)September 30, 2016Foreign Corporatesecurities MBS (in millions of U.S. dollars) Balance–Beginning of Period$57 $174 $53 $16$—$212 $6$609Transfers into Level 39 18 — ——— ——Transfers out of Level 3(2) — — ——— ——Change in Net Unrealized Gains (Losses) included in OCI8 17 — 2—4 ——Net Realized Gains/Losses(6) (12) — 1—— 2274Purchases (2)52 472 1 236222 2—Sales(10) (48) (8) (5)—— ——Settlements(5) (15) — ——(15) (2)—Balance–End of Period$103 $606 $46 $37$62$223 $8$883Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date$(5) $(11) $— $—$—$— $2$274(1) Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.(2) Includes acquired invested assets as a result of the Chubb Corp acquisition. Assets LiabilitiesNine Months Ended Available-for-Sale Debt Securities Other investments OtherderivativeinstrumentsGLB(1)September 30, 2015 Foreign Corporatesecurities MBS Equitysecurities (in millions of U.S. dollars) Balance–Beginning of Period $22 $187 $15 $2 $204 $4$406Transfers into Level 3 29 15 — — — ——Change in Net Unrealized Gains (Losses) included in OCI (1) 1 — 2 (7) ——Net Realized Gains/Losses (1) (4) — (2) — 3338Purchases 9 38 41 2 21 ——Sales (1) (10) (1) — — ——Settlements (4) (44) (1) — (9) ——Balance–End of Period $53$183$54 $4$209 $7$744Net Realized Gains/Losses Attributable to Changes in Fair Value at the Balance Sheet Date $(1) $(2) $— $(2) $— $3$338(1) Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. The liability for GLB reinsurance was $1.0 billion at September 30, 2015, and $663 million at December 31, 2014, which includes a fair value derivative adjustment of $744 million and $406 million, respectively.

[2] Our GLB reinsurance product meets the definition of a derivative instrument for accounting purposes and is accordingly carried at fair value. Excluded from the table above is the portion of the GLB derivative liability classified as Future policy benefits in the consolidated balance sheets. Refer to Note 5 for additional information.

XML

Goodwill and other intangible assets Schedule of Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Jan. 14, 2016	Dec. 31, 2015
Goodwill [Line Items]
Other Intangible Assets, Net	$ 6,991		$ 887
Goodwill [Roll Forward]
Goodwill, beginning of period	4,796
Goodwill, Acquired During Period	10,530
Goodwill, Translation Adjustments	155
Goodwill, end of period	15,481
North America Commercial P&C Insurance [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	1,203
Goodwill, Acquired During Period	5,711
Goodwill, Translation Adjustments	43
Goodwill, end of period	6,957
North America Personal P&C Insurance [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	196
Goodwill, Acquired During Period	2,025
Goodwill, Translation Adjustments	13
Goodwill, end of period	2,234
North America Agricultural Insurance [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	134
Goodwill, Acquired During Period	0
Goodwill, Translation Adjustments	0
Goodwill, end of period	134
Overseas General Insurance [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	2,078
Goodwill, Acquired During Period	2,794
Goodwill, Translation Adjustments	98
Goodwill, end of period	4,970
Global Reinsurance [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	365
Goodwill, Acquired During Period	0
Goodwill, Translation Adjustments	0
Goodwill, end of period	365
Life Insurance [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	820
Goodwill, Acquired During Period	0
Goodwill, Translation Adjustments	1
Goodwill, end of period	$ 821
The Chubb Corporation [Member]
Goodwill [Line Items]
Increase Decrease on Acquired Unpaid Losses and Loss Expenses		$ 715
The Chubb Corporation [Member] | Minimum [Member]
Goodwill [Line Items]
Amortization Period of Increase Decrease to Acquired Unpaid Losses and Loss Expenses	5 years
The Chubb Corporation [Member] | Maximum [Member]
Goodwill [Line Items]
Amortization Period of Increase Decrease to Acquired Unpaid Losses and Loss Expenses	17 years

XML

Goodwill and other intangible assets Intangible Assets Acquiredd as part of Chubb acquisition (Details) - USD ($) $ in Millions		9 Months Ended
	Jan. 14, 2016	Sep. 30, 2016
Acquired Indefinite-lived Intangible Assets [Line Items]
Total identified intangible assets acquired	$ 7,655
Internally developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life		3 years
Internally developed technology | The Chubb Corporation [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired		$ 95
Agency distribution relationships and renewal rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life		24 years
Agency distribution relationships and renewal rights [Member] | The Chubb Corporation [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired		$ 3,150
Unearned premium reserves [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life		1 year
Unearned premium reserves [Member] | The Chubb Corporation [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired		$ 1,550
Maximum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life		24 years
Minimum [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life		1 year
Trademarks [Member] | The Chubb Corporation [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired		$ 2,800
Licensing Agreements [Member] | The Chubb Corporation [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired		50
Syndicate capacity [Member] | The Chubb Corporation [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired		$ 10

XML

Goodwill and other intangible assets Intangible Assets (Estimated Amortization Expense Over the Next Five Years (Details) $ in Millions	Sep. 30, 2016 USD ($)
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets Amortization Expense Next Three to Six Months	$ 3
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	252
Finite-Lived Intangible Assets, Amortization Expense, Year Two	327
Finite-Lived Intangible Assets, Amortization Expense, Year Three	285
Finite-Lived Intangible Assets, Amortization Expense, Year Four	263
Finite-Lived Intangible Assets, Amortization Expense, Year Five	250
FiniteLivedIntangibleAssetsAmortizationExpenseTotal	1,380
The Chubb Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Unearned Premium Reserves Amortization, Next Three to Six Months	144
Finite-Lived Intangible Assets Amortization Expense Next Three to Six Months	(20)
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	167
Finite-Lived Intangible Assets, Amortization Expense, Year Two	254
Finite-Lived Intangible Assets, Amortization Expense, Year Three	219
Finite-Lived Intangible Assets, Amortization Expense, Year Four	204
Finite-Lived Intangible Assets, Amortization Expense, Year Five	197
FiniteLivedIntangibleAssetsAmortizationExpenseTotal	1,021
Agency distribution relationships and renewal rights [Member] | The Chubb Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets Amortization Expense Next Three to Six Months	33
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	296
Finite-Lived Intangible Assets, Amortization Expense, Year Two	324
Finite-Lived Intangible Assets, Amortization Expense, Year Three	281
Finite-Lived Intangible Assets, Amortization Expense, Year Four	240
Finite-Lived Intangible Assets, Amortization Expense, Year Five	217
FiniteLivedIntangibleAssetsAmortizationExpenseTotal	1,391
Internally Developed Technology [Member] | The Chubb Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets Amortization Expense Next Three to Six Months	8
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	32
Finite-Lived Intangible Assets, Amortization Expense, Year Two	32
Finite-Lived Intangible Assets, Amortization Expense, Year Three	0
Finite-Lived Intangible Assets, Amortization Expense, Year Four	0
Finite-Lived Intangible Assets, Amortization Expense, Year Five	0
FiniteLivedIntangibleAssetsAmortizationExpenseTotal	72
Fair Value Adjustment to Acquired Loss Reserves [Member] | The Chubb Corporation [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets Amortization Expense Next Three to Six Months	(61)
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	(161)
Finite-Lived Intangible Assets, Amortization Expense, Year Two	(102)
Finite-Lived Intangible Assets, Amortization Expense, Year Three	(62)
Finite-Lived Intangible Assets, Amortization Expense, Year Four	(36)
Finite-Lived Intangible Assets, Amortization Expense, Year Five	(20)
FiniteLivedIntangibleAssetsAmortizationExpenseTotal	(442)
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets Amortization Expense Next Three to Six Months	23
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	85
Finite-Lived Intangible Assets, Amortization Expense, Year Two	73
Finite-Lived Intangible Assets, Amortization Expense, Year Three	66
Finite-Lived Intangible Assets, Amortization Expense, Year Four	59
Finite-Lived Intangible Assets, Amortization Expense, Year Five	53
FiniteLivedIntangibleAssetsAmortizationExpenseTotal	$ 359

XML

Debt (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Jan. 14, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term debt	$ 12,621		$ 9,389
Repurchase agreements	1,406		1,404
The Chubb Corporation [Member]
Debt Instrument [Line Items]
Long-term debt		$ 3,765
Debt Instrument, Face Amount		$ 3,300
Chubb INA $1,000 million 6.375% capital securities due March 2067(1)
Debt Instrument [Line Items]
Debt Instrument, Face Amount	1,000
Junior Subordinated Debt [Member] | Chubb INA $1,000 million 6.375% capital securities due March 2067(1)
Debt Instrument [Line Items]
Long-term debt	961		$ 0
Debt Instrument, Face Amount	$ 1,000
Interest Rate	6.375%
London Interbank Offered Rate (LIBOR) [Member] | Junior Subordinated Debt [Member] | Chubb INA $1,000 million 6.375% capital securities due March 2067(1)
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.25%

XML

Debt (Schedule of Debt Outstanding) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Jan. 14, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Repurchase agreements	$ 1,406		$ 1,404
Short-term debt	500		0
Long-term debt	12,621		9,389
Trust preferred securities	308		307
Chubb INA $1,000 million 6.375% capital securities due March 2067(1)
Debt Instrument [Line Items]
Debt Instrument, Face Amount	1,000
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	12,621		9,389
Senior Notes [Member] | INA Senior Notes Due February 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	500
Short-term debt	$ 500		0
Interest Rate	5.70%
Long-term debt	$ 0		500
Make Whole Premium Additional Percent	0.20%
Senior Notes [Member] | INA Senior Notes Due March 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 300
Interest Rate	5.80%
Long-term debt	$ 300		299
Make Whole Premium Additional Percent	0.35%
Senior Notes [Member] | Chubb INA Senior Notes Due May 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 600
Interest Rate	5.75%
Long-term debt	$ 641		0
Make Whole Premium Additional Percent	0.30%
Senior Notes [Member] | INA Senior Notes Due June 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 500
Interest Rate	5.90%
Long-term debt	$ 498		497
Make Whole Premium Additional Percent	0.40%
Senior Notes [Member] | INA Senior Notes Due November 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,300
Interest Rate	2.30%
Long-term debt	$ 1,294		1,294
Make Whole Premium Additional Percent	0.15%
Senior Notes [Member] | INA Senior Notes Due November 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,000
Interest Rate	2.875%
Long-term debt	$ 994		994
Make Whole Premium Additional Percent	0.20%
Senior Notes [Member] | INA Senior Notes Due March 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 475
Interest Rate	2.70%
Long-term debt	$ 471		471
Make Whole Premium Additional Percent	0.10%
Senior Notes [Member] | INA Senior Notes Due May 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 700
Interest Rate	3.35%
Long-term debt	$ 694		694
Make Whole Premium Additional Percent	0.15%
Senior Notes [Member] | INA Senior Notes Due March 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 800
Interest Rate	3.15%
Long-term debt	$ 794		794
Make Whole Premium Additional Percent	0.15%
Senior Notes [Member] | INA Senior Notes Due May 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,500
Interest Rate	3.35%
Long-term debt	$ 1,488		1,487
Make Whole Premium Additional Percent	0.20%
Senior Notes [Member] | INA Senior Notes Due May 2036 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 300
Interest Rate	6.70%
Long-term debt	$ 297		297
Make Whole Premium Additional Percent	0.20%
Senior Notes [Member] | $800 million 6.0% due May 2037
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 800
Interest Rate	6.00%
Long-term debt	$ 982		0
Make Whole Premium Additional Percent	0.20%
Senior Notes [Member] | $600 million 6.5% due May 2038
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 600
Interest Rate	6.50%
Long-term debt	$ 778		0
Make Whole Premium Additional Percent	0.30%
Senior Notes [Member] | INA Senior Notes Due March 2043 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 475
Interest Rate	4.15%
Long-term debt	$ 469		469
Make Whole Premium Additional Percent	0.15%
Senior Notes [Member] | INA Senior Notes Due November 2045 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,500
Interest Rate	4.35%
Long-term debt	$ 1,482		1,482
Make Whole Premium Additional Percent	0.25%
Senior Notes [Member] | Pennsylvania Industrial Development Authority (PIDA) AND City Of Philadelphia Urban Development Action Grant [Member]
Debt Instrument [Line Items]
Long-term debt	$ 11		11
Junior Subordinated Debt [Member] | Chubb INA $1,000 million 6.375% capital securities due March 2067(1)
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 1,000
Interest Rate	6.375%
Long-term debt	$ 961		0
Debentures Subject to Mandatory Redemption [Member] | Chubb INA Senior Notes Due August 2018 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 100
Interest Rate	6.60%
Long-term debt	$ 109		0
Debentures Subject to Mandatory Redemption [Member] | INA Senior Notes Due August 2029 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 100
Interest Rate	8.875%
Long-term debt	$ 100		100
Unsecured Debt [Member] | Chubb INA Senior Notes Due 2031 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 200
Interest Rate	6.80%
Long-term debt	$ 258		0
Make Whole Premium Additional Percent	0.25%
Trust Preferred Securities [Member] | INA Capital Securities Due April 2030 [Member]
Debt Instrument [Line Items]
Trust preferred securities	$ 308		307
Repurchase Agreements [Member]
Debt Instrument [Line Items]
Repurchase agreements	$ 1,406		$ 1,404
Short-term Debt, Weighted Average Interest Rate	0.80%		0.60%
Minimum [Member] | Senior Notes [Member] | Pennsylvania Industrial Development Authority (PIDA) AND City Of Philadelphia Urban Development Action Grant [Member]
Debt Instrument [Line Items]
Interest Rate	2.75%
Minimum [Member] | Junior Subordinated Debt [Member] | Chubb INA $1,000 million 6.375% capital securities due March 2067(1)
Debt Instrument [Line Items]
Make Whole Premium Additional Percent	0.25%
Maximum [Member] | Senior Notes [Member] | Pennsylvania Industrial Development Authority (PIDA) AND City Of Philadelphia Urban Development Action Grant [Member]
Debt Instrument [Line Items]
Interest Rate	7.10%
Maximum [Member] | Junior Subordinated Debt [Member] | Chubb INA $1,000 million 6.375% capital securities due March 2067(1)
Debt Instrument [Line Items]
Make Whole Premium Additional Percent	0.50%
The Chubb Corporation [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 3,300
Long-term debt		$ 3,765
The Chubb Corporation [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest Rate		2.30%
The Chubb Corporation [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest Rate		4.35%

XML

Commitments, Contingencies, And Guarantees (Narrative) (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities lending collateral	$ 1,140	$ 1,046
Carrying value of limited partnerships and partially-owned investment companies included in other investments	3,300
Funding commitments relating to limited partnerships and partially-owned investment companies	2,000
Unrecognized tax benefits	17
Derivative liability subject to a master netting agreement	9	$ 1
Purchase Commitment, Remaining Minimum Amount Committed	788
Overnight and Continuous [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Secured Borrowings, Gross, Difference, Amount	(1)
Cash and Cash Equivalents [Member] | Overnight and Continuous [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities lending collateral	449
U.S. Treasury And Agency [Member] | Overnight and Continuous [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities lending collateral	53
Corporate [Member] | Overnight and Continuous [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities lending collateral	4
Equity Option [Member]
Financial Instruments Owned and Pledged as Collateral [Line Items]
Derivative Asset, Fair Value, Gross Liability	$ 0

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		Sep. 30, 2016	Dec. 31, 2015
Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Notional Value/Payment Provision		$ 2,025	$ 1,029
Cross Currency Swap [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Liability		0	0
Fair Value, Asset		0	0
Notional Value/Payment Provision		95	95
Options/Futures contracts on bonds and equities
Derivatives, Fair Value [Line Items]
Notional Value/Payment Provision		1,353	751
Convertibles and Bonds with Warrants Attached [Member]
Derivatives, Fair Value [Line Items]
Notional Value/Payment Provision		8	40	[1]
Investment And Embedded Derivative Instruments [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Asset		25	43
Notional Value/Payment Provision		3,481	1,915
Single-Stock Future [Member]
Derivatives, Fair Value [Line Items]
Notional Value/Payment Provision	[2]	1,275	1,197
Other Derivatives [Member]
Derivatives, Fair Value [Line Items]
Notional Value/Payment Provision		243	15
Other Derivative Instruments [Member]
Derivatives, Fair Value [Line Items]
Notional Value/Payment Provision		1,518	1,212
Guaranteed Living Benefits [Member]
Derivatives, Fair Value [Line Items]
Notional Value/Payment Provision	[3]	1,436	1,155
Equity Option [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Asset		0
Other Assets [Member] | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Fair Value, Asset		10	7
Other Assets [Member] | Options/Futures contracts on bonds and equities
Derivatives, Fair Value [Line Items]
Fair Value, Asset		10	5
Other Assets [Member] | Single-Stock Future [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Asset	[2]	4	0
Other Assets [Member] | Other Derivatives [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Asset		10	0
Other Assets [Member] | Other Derivative Instruments [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Asset		14	0
Other Assets [Member] | Guaranteed Living Benefits [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Asset	[3]	0	0
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Fair Value, Liability		(32)	(11)
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Options/Futures contracts on bonds and equities
Derivatives, Fair Value [Line Items]
Fair Value, Liability		(2)	(2)
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Convertibles and Bonds with Warrants Attached [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Liability		0	0	[1]
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Investment And Embedded Derivative Instruments [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Liability		(34)	(13)
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Single-Stock Future [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Liability	[2]	0	(4)
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Other Derivatives [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Liability		(8)	(6)
Accounts Payable, Accrued Expenses, And Other Liabilities [Member] | Other Derivative Instruments [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Liability		(8)	(10)
Fixed Maturities Available For Sale [Member] | Convertibles and Bonds with Warrants Attached [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Asset		5	31	[1]
Accounts Payable Future Policy Benefits [Member] | Guaranteed Living Benefits [Member]
Derivatives, Fair Value [Line Items]
Fair Value, Liability	[3]	$ (1,166)	$ (888)

[1] Includes fair value of embedded derivatives.

[2] Related to GMDB and GLB blocks of business.

[3] Includes both future policy benefits reserves and fair value derivative adjustment. Refer to Note 5 for additional information. 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.

XML

Commitments, contingencies, and guarantees Commitments, Contingencies, And Guarantees (Transactions accounted for as secured borrowings) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	$ 1,140	$ 1,046
Securities lending payable	1,141	$ 1,047
Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Secured Borrowings, Gross, Difference, Amount	(1)
Cash and Cash Equivalents [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	449
U.S. Treasury And Agency [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	53
Foreign Government Debt [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	324
Corporate [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	4
Collateralized Mortgage Backed Securities [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	38
Equity Securities [Member] | Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	$ 272

XML

Commitments, contingencies, and guarantees Commitments, Contingencies, And Guarantees (Collateral pledged under repurchase agreements) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 1,406	$ 1,404
Assets pledged under repurchase agreements	1,464	1,459
Securities lending collateral	1,140	1,046
Securities lending payable	1,141	$ 1,047
U.S. Treasury And Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	237
Collateralized Mortgage Backed Securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	1,227
Repurchase Agreements [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Secured Borrowings, Gross, Difference, Amount	58
Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Secured Borrowings, Gross, Difference, Amount	1
Overnight and Continuous [Member] | Cash and Cash Equivalents [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	449
Overnight and Continuous [Member] | Corporate [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	4
Overnight and Continuous [Member] | U.S. Treasury And Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	53
Overnight and Continuous [Member] | Collateralized Mortgage Backed Securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Securities lending collateral	38
Maturity Less than 30 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	413
Maturity Less than 30 Days [Member] | U.S. Treasury And Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	5
Maturity Less than 30 Days [Member] | Collateralized Mortgage Backed Securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	408
Maturity 30 to 90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	484
Maturity 30 to 90 Days [Member] | U.S. Treasury And Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	0
Maturity 30 to 90 Days [Member] | Collateralized Mortgage Backed Securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	484
Maturity Greater than 90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	567
Maturity Greater than 90 Days [Member] | U.S. Treasury And Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	232
Maturity Greater than 90 Days [Member] | Collateralized Mortgage Backed Securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Assets pledged under repurchase agreements	$ 335

XML

Commitments, Contingencies, And Guarantees (Net Realized Gains (Losses) Of Derivative Instrument Activity In Consolidated Statement Of Operations) (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Commitments Contingencies And Guarantees [Line Items]
Gain (Loss) on Derivative		$ 48	$ (344)	$ (442)	$ (272)
Foreign currency forward contracts
Commitments Contingencies And Guarantees [Line Items]
Gain (Loss) on Derivative		(10)	15	(30)	30
All Other Futures Contracts And Options [Member]
Commitments Contingencies And Guarantees [Line Items]
Gain (Loss) on Derivative		8	(23)	(63)	(10)
Convertibles and Bonds with Warrants Attached [Member]
Commitments Contingencies And Guarantees [Line Items]
Gain (Loss) on Derivative	[1]	3	(14)	8	(14)
Investment And Embedded Derivative Instruments [Member]
Commitments Contingencies And Guarantees [Line Items]
Gain (Loss) on Derivative		1	(22)	(85)	6
Guaranteed Living Benefits [Member]
Commitments Contingencies And Guarantees [Line Items]
Gain (Loss) on Derivative	[2]	89	(396)	(270)	(337)
Single-Stock Future [Member]
Commitments Contingencies And Guarantees [Line Items]
Gain (Loss) on Derivative	[3]	(45)	84	(88)	71
Options On Equity Market Indices [Member]
Commitments Contingencies And Guarantees [Line Items]
Gain (Loss) on Derivative	[3]	0	(1)	0	(2)
Guaranteed Living Benefit And Other Derivative Instruments [Member]
Commitments Contingencies And Guarantees [Line Items]
Gain (Loss) on Derivative		47	(322)	(357)	(278)
Other Derivatives [Member]
Commitments Contingencies And Guarantees [Line Items]
Gain (Loss) on Derivative		$ 3	$ (9)	$ 1	$ (10)

[1] (1) Includes embedded derivatives.

[2] (2) Excludes foreign exchange gains (losses) related to GLB

[3] (3) Related to GMDB and GLB blocks of business.

XML

Shareholders' equity Shareholders' equity (Details) $ / shares in Units, $ in Millions	1 Months Ended			3 Months Ended				9 Months Ended
	May 31, 2016 $ / shares	May 31, 2015 $ / shares	May 31, 2014 $ / shares	Sep. 30, 2016 $ / shares SFr / shares shares	Sep. 30, 2016 SFr / shares shares	Sep. 30, 2015 USD ($) $ / shares	Sep. 30, 2015 SFr / shares	Sep. 30, 2016 $ / shares SFr / shares shares	Sep. 30, 2016 SFr / shares shares	Sep. 30, 2015 USD ($) $ / shares shares	Sep. 30, 2015 SFr / shares	Jan. 01, 2016 USD ($)	Dec. 31, 2015 SFr / shares shares	Jan. 01, 2015 USD ($)
Equity, Class of Treasury Stock [Line Items]
Common Shares, par value | SFr / shares				SFr 24.15	SFr 24.15			SFr 24.15	SFr 24.15				SFr 24.15
Common Stock, Dividend Rate, Per-Dollar-Amount Approved by Shareholders | $ / shares	$ 0.69	$ 0.67	$ 0.65
Dividends declared per common share | (per share)				SFr 0.69	SFr 0.67	$ 0.67	SFr 0.65	SFr 2.05	SFr 2.01	$ 1.99	SFr 1.89
Common Shares in treasury, shares | shares				14,497,754	14,497,754			14,497,754	14,497,754				18,268,971
Annual dividend per share approved by shareholders | $ / shares	$ 2.76	$ 2.68	$ 2.60
Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Dividends declared per common share | (per share)				SFr 0	SFr 0	0	0	SFr 0	SFr 0	0.65	0.62
Additional Paid-in Capital [Member]
Equity, Class of Treasury Stock [Line Items]
Dividends declared per common share | (per share)				SFr 0.69	SFr 0.67	$ 0.67	SFr 0.65	SFr 2.05	SFr 2.01	$ 1.34	SFr 1.27
2015 Stock Repurchase Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Common Shares repurchased						$ 0				$ 734
Repurchase of outstanding common shares, shares | shares										6,677,663
Authorized amount of share repurchase program														$ 1,500
2016 Stock Repurchase Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Authorized amount of share repurchase program												$ 0

XML

Share-Based Compensation (Detail) - USD ($) $ / shares in Units, $ in Millions			9 Months Ended
	Feb. 25, 2016	Jan. 14, 2016	Sep. 30, 2016	May 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to be issued				19,500,000
The Chubb Corporation [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years			3 years
Award term period in years			10 years
Attributed Value Equity Awards Assumed in Acquisition		$ 323
Total Value of Equity Awards Issued in Acquisition		$ 525
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years			3 years
Award term period in years			10 years
Stock options granted	1,926,842
Weighted-average grant date fair value for stock options granted	$ 21.52
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	1,119,686
Grant date fair value of awards except for options granted to employees and officers of the company	$ 118.39
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units awarded to employees and officers of the company	337,581
Performance Shares [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	452,820

XML

Postretirement benefits (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Jan. 14, 2016
Defined Benefit Plan Disclosure [Line Items]
Contributions During Current Period	$ 24		$ 156
Expected Contribution For Remainder of Year			8
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	26	$ 2	72	$ 5
Interest Cost	34	5	104	15
Expected Return on Plan Assets	(52)	(7)	(151)	(21)
Amortization of Actuarial (Gain) Loss	0	0	2	2
Curtailments	(4)		(4)
Settlements	(1)		(1)
Net Periodic Benefit Cost	3	0	22	1
Pension Plan [Member] | The Chubb Corporation [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets						$ 2,788
Projected Benefit Obligation						(3,525)
Funded Status of Plan						(737)
Pension Plan [Member] | Non-US [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	6	2	15	5
Interest Cost	8	5	24	15
Expected Return on Plan Assets	(10)	(7)	(30)	(21)
Amortization of Actuarial (Gain) Loss	0	0	2	2
Curtailments	0		0
Settlements	0		0
Net Periodic Benefit Cost	4	0	$ 11	1
Discount Rate			3.74%		3.51%
Rate of Compensation Increase			3.40%		3.09%
Expected Long-term Rate of Return on Plan Assets Assumption			4.90%		4.81%
Pension Plan [Member] | Non-US [Member] | The Chubb Corporation [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets						315
Projected Benefit Obligation						(372)
Funded Status of Plan						(57)
Pension Plan [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Service Cost	20	0	$ 57	0
Interest Cost	26	0	80	0
Expected Return on Plan Assets	(42)	0	(121)	0
Amortization of Actuarial (Gain) Loss	0	0	0	0
Curtailments	(4)		(4)
Settlements	(1)		(1)
Net Periodic Benefit Cost	(1)	$ 0	$ 11	$ 0
Discount Rate			4.28%
Rate of Compensation Increase			4.00%
Expected Long-term Rate of Return on Plan Assets Assumption			7.00%
Pension Plan [Member] | U.S. | The Chubb Corporation [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets						2,473
Projected Benefit Obligation						(3,153)
Funded Status of Plan						(680)
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	4		$ 9
Interest Cost	4		13
Expected Return on Plan Assets	(3)		(7)
Amortization of Actuarial (Gain) Loss			0
Curtailments	0		0
Settlements	0		0
Net Periodic Benefit Cost	5		15
Other Postretirement Benefit Plan [Member] | The Chubb Corporation [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets						138
Projected Benefit Obligation						(506)
Funded Status of Plan						(368)
Other Postretirement Benefit Plan [Member] | Non-US [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	0		1
Interest Cost	0		0
Expected Return on Plan Assets	0		0
Amortization of Actuarial (Gain) Loss	0		0
Curtailments	0		0
Settlements	0		0
Net Periodic Benefit Cost	0		$ 1
Discount Rate			4.30%
Other Postretirement Benefit Plan [Member] | Non-US [Member] | The Chubb Corporation [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets						0
Projected Benefit Obligation						(15)
Funded Status of Plan						(15)
Other Postretirement Benefit Plan [Member] | U.S.
Defined Benefit Plan Disclosure [Line Items]
Service Cost	4		$ 8
Interest Cost	4		13
Expected Return on Plan Assets	(3)		(7)
Amortization of Actuarial (Gain) Loss	0		0
Curtailments	0		0
Settlements	0		0
Net Periodic Benefit Cost	$ 5		$ 14
Discount Rate			4.41%
Expected Long-term Rate of Return on Plan Assets Assumption			7.00%
Other Postretirement Benefit Plan [Member] | U.S. | The Chubb Corporation [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets						138
Projected Benefit Obligation						(491)
Funded Status of Plan						$ (353)

XML

Segment Information (Operations By Segment) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Net premiums written	$ 7,573	$ 4,709	$ 21,207	$ 13,569
Net premiums earned	7,688	4,719	21,690	13,006
Losses and loss expenses	4,269	2,643	12,197	7,182
Policy benefits	155	89	427	384
Policy acquisition costs	1,514	771	4,487	2,205
Administrative expenses	772	568	2,373	1,700
Underwriting income (loss)	978	648	2,206	1,535
Net investment income	739	549	2,121	1,662
Other (income) expense	(91)	12	(92)	(61)
Amortization of purchased intangibles	4	51	16	136
Segment Income (loss)	1,804	1,134	4,403	3,122
Net realized gains including OTTI	100	(397)	(510)	(360)
Interest expense	152	68	451	207
Chubb integration expenses	115	9	361	9
Income tax expense	277	132	556	395
Net income	1,360	528	2,525	2,151
Gain (Loss) on Derivative	48	(344)	(442)	(272)
North America Commercial P&C Insurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	3,110	1,433	8,657	4,158
Net premiums earned	3,086	1,410	9,130	4,209
Losses and loss expenses	1,863	913	5,581	2,744
Policy acquisition costs	522	142	1,549	403
Administrative expenses	275	154	840	459
Underwriting income (loss)	426	201	1,160	603
Net investment income	477	260	1,371	780
Other (income) expense	3	(3)	(6)	(5)
Amortization of purchased intangibles	0	0	0	0
Segment Income (loss)	900	464	2,537	1,388
North America Personal P&C Insurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	1,011	278	3,113	958
Net premiums earned	1,081	272	3,245	687
Losses and loss expenses	594	179	1,916	446
Policy acquisition costs	229	13	747	43
Administrative expenses	89	36	275	89
Underwriting income (loss)	169	44	307	109
Net investment income	53	7	155	19
Other (income) expense	2	1	6	1
Amortization of purchased intangibles	4	31	16	63
Segment Income (loss)	216	19	440	64
North America Agricultural Insurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	849	737	1,288	1,204
Net premiums earned	819	739	1,169	1,124
Losses and loss expenses	683	620	937	913
Policy acquisition costs	48	42	77	61
Administrative expenses	1	0	(1)	3
Underwriting income (loss)	87	77	156	147
Net investment income	5	5	15	17
Other (income) expense	0	(1)	0	1
Amortization of purchased intangibles	7	8	22	22
Segment Income (loss)	85	75	149	141
Management North America Agricultural Insurance segment income	90
Overseas General Insurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	1,940	1,584	6,012	5,047
Net premiums earned	2,034	1,615	6,082	4,896
Losses and loss expenses	843	674	2,953	2,304
Policy acquisition costs	546	405	1,586	1,190
Administrative expenses	261	246	801	756
Underwriting income (loss)	384	290	742	646
Net investment income	152	132	445	409
Other (income) expense	(6)	(6)	(16)	(12)
Amortization of purchased intangibles	12	12	36	50
Segment Income (loss)	530	416	1,167	1,017
Global Reinsurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	131	185	562	719
Net premiums earned	156	203	543	649
Losses and loss expenses	49	20	225	191
Policy acquisition costs	42	52	142	166
Administrative expenses	12	12	40	37
Underwriting income (loss)	53	119	136	255
Net investment income	67	76	199	230
Other (income) expense	0	(4)	(3)	(5)
Amortization of purchased intangibles	0	0	0	0
Segment Income (loss)	120	199	338	490
Life Insurance [Member]
Segment Reporting Information [Line Items]
Net premiums written	532	492	1,575	1,483
Net premiums earned	512	480	1,521	1,441
Losses and loss expenses	174	153	498	442
Policy benefits	155	89	427	384
Policy acquisition costs	127	117	386	342
Administrative expenses	77	74	226	221
Underwriting income (loss)	(21)	47	(16)	52
Net investment income	71	66	207	198
Other (income) expense	(20)	48	(14)	32
Amortization of purchased intangibles	1	0	2	1
Segment Income (loss)	69	65	203	217
Management Underwriting Income (Loss)	72
Gains Losses On Fair Value Changes In Separate Account Assets	22
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Losses and loss expenses	63	84	87	142
Policy acquisition costs		0		0
Administrative expenses	57	46	192	135
Underwriting income (loss)	(120)	(130)	(279)	(277)
Net investment income	(86)	3	(271)	9
Other (income) expense	(70)	(23)	(59)	(73)
Amortization of purchased intangibles	(20)	0	(60)	0
Segment Income (loss)	(116)	(104)	(431)	(195)
Net realized gains including OTTI	100	(397)	(510)	(360)
Interest expense	152	68	451	207
Chubb integration expenses	115	9	361	9
Income tax expense	277	132	556	395
Net income	(560)	$ (710)	$ (2,309)	$ (1,166)
Commodity [Member] | North America Agricultural Insurance [Member]
Segment Reporting Information [Line Items]
Gain (Loss) on Derivative	$ 3

XML

Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Net income	$ 1,360	$ 528	$ 2,525	$ 2,151
Weighted-average shares outstanding	468,021,093	324,210,936	460,631,794	325,904,502
Share-based compensation plans	3,375,269	2,962,484	3,439,017	3,269,724
Weighted-average shares outstanding and assumed conversions	471,396,362	327,173,420	464,070,811	329,174,226
Basic earnings per share (US$ per share)	$ 2.90	$ 1.63	$ 5.48	$ 6.60
Diluted earnings per share (US$ per share)	$ 2.88	$ 1.62	$ 5.44	$ 6.53
Potential anti-dilutive share conversions	1,306,710	1,907,815	1,635,337	1,503,830

XML

Information provided in connection with outstanding debt of subsidiaries Information provided in connection with outstanding debt of subsidiaries (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Jan. 14, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Equity Method Investment, Ownership Percentage	100.00%
Long-term debt	$ 12,621		$ 9,389
The Chubb Corporation [Member]
Debt Instrument [Line Items]
Intercompany Loan Agreements		$ 10,000
Debt Instrument, Face Amount		3,300
Long-term debt		$ 3,765
Weighted Average Interest Rate		3.30%
Minimum [Member] | The Chubb Corporation [Member]
Debt Instrument [Line Items]
Interest Rate		2.30%
Maximum [Member] | The Chubb Corporation [Member]
Debt Instrument [Line Items]
Interest Rate		4.35%

XML

Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Balance Sheet) (Detail) - USD ($) $ in Millions	Sep. 30, 2016		Dec. 31, 2015		Sep. 30, 2015		Dec. 31, 2014	[4]
Condensed Financial Statements, Captions [Line Items]
Investments	$ 101,036		$ 66,251
Cash	870	[1],[2]	1,775	[1],[3]	$ 1,038	[4]	$ 655
Insurance and reinsurance balances receivable	8,493		5,323
Reinsurance recoverable on losses and loss expenses	13,448		11,386
Reinsurance recoverable on policy benefits	195		187
Value of business acquired	368		395
Goodwill and other intangible assets	22,472		5,683
Investments in subsidiaries	0		0
Due from subsidiaries and affiliates, net	0		0
Other assets	14,928		11,306
Total assets	161,810		102,306
Unpaid losses and loss expenses	61,347		37,303
Unearned premiums	15,054		8,439
Future policy benefits	5,010		4,807
Due to subsidiaries and affiliates, net	0		0
Repurchase agreements	1,406		1,404
Short-term debt	500		0
Affiliated notional cash pooling programs	0		0
Long-term debt	12,621		9,389
Trust preferred securities	308		307
Other liabilities	17,192		11,522
Total liabilities	113,438		73,171
Total shareholders' equity	48,372		29,135		29,127
Total liabilities and shareholders’ equity	161,810		102,306
Consolidating Adjustments and Eliminations
Condensed Financial Statements, Captions [Line Items]
Investments	0		0
Cash	(1,296)	[1],[2]	(971)	[1],[3]	(1,161)	[4]	(555)
Insurance and reinsurance balances receivable	(2,899)		(752)
Reinsurance recoverable on losses and loss expenses	(10,194)		(8,738)
Reinsurance recoverable on policy benefits	(972)		(942)
Value of business acquired	0		0
Goodwill and other intangible assets	0		0
Investments in subsidiaries	(88,719)		(47,998)
Due from subsidiaries and affiliates, net	(11,186)		(2,444)
Other assets	(4,299)		(3,593)
Total assets	(119,565)		(65,438)
Unpaid losses and loss expenses	(9,535)		(8,187)
Unearned premiums	(3,719)		(1,804)
Future policy benefits	(972)		(942)
Due to subsidiaries and affiliates, net	(11,186)		(2,444)
Repurchase agreements	0		0
Short-term debt	0
Affiliated notional cash pooling programs	(1,296)	[2]	(971)	[3]
Long-term debt	0		0
Trust preferred securities	0		0
Other liabilities	(4,138)		(3,092)
Total liabilities	(30,846)		(17,440)
Total shareholders' equity	(88,719)		(47,998)
Total liabilities and shareholders’ equity	(119,565)		(65,438)
Chubb Limited (Parent Guarantor)
Condensed Financial Statements, Captions [Line Items]
Investments	25		28
Cash	6	[1],[2]	1	[1],[3]	17	[4]	0
Insurance and reinsurance balances receivable	0		0
Reinsurance recoverable on losses and loss expenses	0		0
Reinsurance recoverable on policy benefits	0		0
Value of business acquired	0		0
Goodwill and other intangible assets	0		0
Investments in subsidiaries	38,403		29,612
Due from subsidiaries and affiliates, net	11,186		644
Other assets	5		8
Total assets	49,625		30,293
Unpaid losses and loss expenses	0		0
Unearned premiums	0		0
Future policy benefits	0		0
Due to subsidiaries and affiliates, net	0		0
Repurchase agreements	0		0
Short-term debt	0
Affiliated notional cash pooling programs	927	[2]	882	[3]
Long-term debt	0		0
Trust preferred securities	0		0
Other liabilities	326		276
Total liabilities	1,253		1,158
Total shareholders' equity	48,372		29,135
Total liabilities and shareholders’ equity	49,625		30,293
Chubb INA Holdings Inc (Subsidiary Issuer)
Condensed Financial Statements, Captions [Line Items]
Investments	812		7,839
Cash	2	[1],[2]	2	[1],[3]	5	[4]	1
Insurance and reinsurance balances receivable	0		0
Reinsurance recoverable on losses and loss expenses	0		0
Reinsurance recoverable on policy benefits	0		0
Value of business acquired	0		0
Goodwill and other intangible assets	0		0
Investments in subsidiaries	50,316		18,386
Due from subsidiaries and affiliates, net	0		1,800
Other assets	366		457
Total assets	51,496		28,484
Unpaid losses and loss expenses	0		0
Unearned premiums	0		0
Future policy benefits	0		0
Due to subsidiaries and affiliates, net	10,996		0
Repurchase agreements	0		0
Short-term debt	500
Affiliated notional cash pooling programs	369	[2]	89	[3]
Long-term debt	12,610		9,378
Trust preferred securities	308		307
Other liabilities	1,588		1,422
Total liabilities	26,371		11,196
Total shareholders' equity	25,125		17,288
Total liabilities and shareholders’ equity	51,496		28,484
Other Chubb Limited Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Investments	100,199		58,384
Cash	2,158	[1],[2]	2,743	[1],[3]	$ 2,177	[4]	$ 1,209
Insurance and reinsurance balances receivable	11,392		6,075
Reinsurance recoverable on losses and loss expenses	23,642		20,124
Reinsurance recoverable on policy benefits	1,167		1,129
Value of business acquired	368		395
Goodwill and other intangible assets	22,472		5,683
Investments in subsidiaries	0		0
Due from subsidiaries and affiliates, net	0		0
Other assets	18,856		14,434
Total assets	180,254		108,967
Unpaid losses and loss expenses	70,882		45,490
Unearned premiums	18,773		10,243
Future policy benefits	5,982		5,749
Due to subsidiaries and affiliates, net	190		2,444
Repurchase agreements	1,406		1,404
Short-term debt	0
Affiliated notional cash pooling programs	0	[2]	0	[3]
Long-term debt	11		11
Trust preferred securities	0		0
Other liabilities	19,416		12,916
Total liabilities	116,660		78,257
Total shareholders' equity	63,594		30,710
Total liabilities and shareholders’ equity	$ 180,254		$ 108,967

[1] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016 and December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[2] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[3] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[4] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2015 and December 31, 2014, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

XML

Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement Of Operations) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Net premiums written	$ 7,573	$ 4,709	$ 21,207	$ 13,569
Net premiums earned	7,688	4,719	21,690	13,006
Net investment income	739	549	2,121	1,662
Equity in earnings of subsidiaries	0	0	0	0
Net realized gains including OTTI	100	(397)	(510)	(360)
Losses and loss expenses	4,269	2,643	12,197	7,182
Policy benefits	155	89	427	384
Policy acquisition costs and administrative expenses	2,286	1,339	6,860	3,905
Interest (income) expense	152	68	451	207
Other (income) expense	(91)	12	(92)	(61)
Amortization of purchased intangibles	4	51	16	136
Chubb integration expenses	115	9	361	9
Income tax expense	277	132	556	395
Net income	1,360	528	2,525	2,151
Comprehensive income (loss)	1,376	(271)	4,457	768
Chubb Limited (Parent Guarantor)
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Net premiums written	0	0	0	0
Net premiums earned	0	0	0	0
Net investment income	1	1	3	2
Equity in earnings of subsidiaries	1,292	488	2,331	2,037
Net realized gains including OTTI	0	0	(1)	0
Losses and loss expenses	0	0	0	0
Policy benefits	0	0	0	0
Policy acquisition costs and administrative expenses	15	15	48	47
Interest (income) expense	(93)	(8)	(266)	(23)
Other (income) expense	(7)	(51)	(20)	(149)
Amortization of purchased intangibles	0	0	0	0
Chubb integration expenses	12	1	29	1
Income tax expense	6	4	17	12
Net income	1,360	528	2,525	2,151
Comprehensive income (loss)	1,376	(271)	4,457	768
Chubb INA Holdings Inc (Subsidiary Issuer)
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Net premiums written	0	0	0	0
Net premiums earned	0	0	0	0
Net investment income	2	1	9	2
Equity in earnings of subsidiaries	748	255	1,803	755
Net realized gains including OTTI	(2)	(4)	(3)	(6)
Losses and loss expenses	0	0	0	0
Policy benefits	0	0	0	0
Policy acquisition costs and administrative expenses	12	7	144	20
Interest (income) expense	233	68	681	206
Other (income) expense	6	(5)	26	(12)
Amortization of purchased intangibles	0	0	0	0
Chubb integration expenses	16	8	56	8
Income tax expense	(136)	(31)	(323)	(84)
Net income	617	205	1,225	613
Comprehensive income (loss)	627	(265)	2,687	(332)
Other Chubb Limited Subsidiaries
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Net premiums written	7,573	4,709	21,207	13,569
Net premiums earned	7,688	4,719	21,690	13,006
Net investment income	736	547	2,109	1,658
Equity in earnings of subsidiaries	0	0	0	0
Net realized gains including OTTI	102	(393)	(506)	(354)
Losses and loss expenses	4,269	2,643	12,197	7,182
Policy benefits	155	89	427	384
Policy acquisition costs and administrative expenses	2,259	1,317	6,668	3,838
Interest (income) expense	12	8	36	24
Other (income) expense	(90)	68	(98)	100
Amortization of purchased intangibles	4	51	16	136
Chubb integration expenses	87		276	0
Income tax expense	407	159	862	467
Net income	1,423	538	2,909	2,179
Comprehensive income (loss)	1,439	(262)	4,841	795
Consolidating Adjustments and Eliminations
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Net premiums written	0	0	0	0
Net premiums earned	0	0	0	0
Net investment income	0	0	0	0
Equity in earnings of subsidiaries	(2,040)	(743)	(4,134)	(2,792)
Net realized gains including OTTI	0	0	0	0
Losses and loss expenses	0	0	0	0
Policy benefits	0	0	0	0
Policy acquisition costs and administrative expenses	0	0	0	0
Interest (income) expense	0	0	0	0
Other (income) expense	0	0	0	0
Amortization of purchased intangibles	0	0	0	0
Chubb integration expenses	0		0	0
Income tax expense	0	0	0	0
Net income	(2,040)	(743)	(4,134)	(2,792)
Comprehensive income (loss)	$ (2,066)	$ 527	$ (7,528)	$ (463)

XML

Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement Of Cash Flows) (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016		Sep. 30, 2015		Jan. 14, 2016
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Equity Method Investment, Ownership Percentage	100.00%
Net cash flows from operating activities	$ 3,837		$ 2,699
Payments To Acquire Available For Sale Securities Debt Condensed	(23,837)		(13,060)
Purchases of fixed maturities held to maturity	(189)		(39)
Purchases of equity securities	(100)		(122)
Proceeds From Sale Of Available For Sale Securities Debt Condensed	13,863		5,233
Sales of equity securities	963		150
Maturities and redemptions of fixed maturities available for sale	6,936		5,257
Maturities and redemptions of fixed maturities held to maturity	627		552
Net change in short-term investments	11,866		421
Net derivative instruments settlements	(181)		62
Cash Acquired from Acquisition	71		620
Acquisition of subsidiaries (net of cash acquired of $71 and $620)	(14,248)		259
Payment Of Contributions To Subsidiary	0		0
Other	26		(138)
Net cash flows used for investing activities	(4,274)		(1,425)
Dividends paid on Common Shares	(851)		(644)
Common Shares repurchased	0		(758)
Proceeds from issuance of long-term debt	0		800
Proceeds from issuance of repurchase agreements	1,457		1,478
Repayment of long-term debt	0		(451)
Repayments of repurchase agreements	(1,455)		(1,477)
Proceeds from share-based compensation plans, including windfall tax benefits	117		89
Dividend to Parent Company	0		0
Capital contribution	0
Advances To From Affiliates Financing Activities	0		0
Net proceeds from (payments to) affiliated notional cash pooling program	0		0
Policyholder contract deposits	473		351
Policyholder contract withdrawals	(247)		(159)
Other	(4)		(6)
Net cash flows used for financing activities	(510)		(777)
Effect of foreign currency rate changes on cash and cash equivalents	42		(114)
Net increase (decrease) in cash	(905)		383
Cash – beginning of period	1,775	[1],[2]	655	[3]
Cash – end of period	870	[2],[4]	1,038	[3]
Consolidating Adjustments and Eliminations
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Net cash flows from operating activities	(7,372)		(276)
Payments To Acquire Available For Sale Securities Debt Condensed	0		(8)
Purchases of fixed maturities held to maturity	0		0
Purchases of equity securities	0		0
Proceeds From Sale Of Available For Sale Securities Debt Condensed	0		0
Sales of equity securities	0		0
Maturities and redemptions of fixed maturities available for sale	0		0
Maturities and redemptions of fixed maturities held to maturity	0		0
Net change in short-term investments	0		0
Net derivative instruments settlements	0		0
Acquisition of subsidiaries (net of cash acquired of $71 and $620)	0		0
Payment Of Contributions To Subsidiary	4,680		625
Other	0		8
Net cash flows used for investing activities	4,680		625
Dividends paid on Common Shares	0		0
Common Shares repurchased			0
Proceeds from issuance of long-term debt			0
Proceeds from issuance of repurchase agreements	0		0
Repayment of long-term debt			0
Repayments of repurchase agreements	0		0
Proceeds from share-based compensation plans, including windfall tax benefits	0		0
Dividend to Parent Company	7,372		276
Capital contribution	(4,680)		(625)
Advances To From Affiliates Financing Activities	0		0
Net proceeds from (payments to) affiliated notional cash pooling program	(325)	[2]	(606)
Policyholder contract deposits	0		0
Policyholder contract withdrawals	0		0
Other	0		0
Net cash flows used for financing activities	2,367		(955)
Effect of foreign currency rate changes on cash and cash equivalents	0		0
Net increase (decrease) in cash	(325)		(606)
Cash – beginning of period	(971)	[1],[2]	(555)	[3]
Cash – end of period	(1,296)	[2],[4]	(1,161)	[3]
Chubb Limited (Parent Guarantor)
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Net cash flows from operating activities	3,399		350
Payments To Acquire Available For Sale Securities Debt Condensed	0		0
Purchases of fixed maturities held to maturity	0		0
Purchases of equity securities	0		0
Proceeds From Sale Of Available For Sale Securities Debt Condensed	0		0
Sales of equity securities	0		0
Maturities and redemptions of fixed maturities available for sale	0		0
Maturities and redemptions of fixed maturities held to maturity	0		0
Net change in short-term investments	0		0
Net derivative instruments settlements	0		0
Acquisition of subsidiaries (net of cash acquired of $71 and $620)	0		0
Payment Of Contributions To Subsidiary	(2,330)		0
Other	0		0
Net cash flows used for investing activities	(2,330)		0
Dividends paid on Common Shares	(851)		(644)
Common Shares repurchased			0
Proceeds from issuance of long-term debt			0
Proceeds from issuance of repurchase agreements	0		0
Repayment of long-term debt			0
Repayments of repurchase agreements	0		0
Proceeds from share-based compensation plans, including windfall tax benefits	0		0
Dividend to Parent Company	0		0
Capital contribution	0
Advances To From Affiliates Financing Activities	(258)		(416)
Net proceeds from (payments to) affiliated notional cash pooling program	45	[2]	727	[3]
Policyholder contract deposits	0		0
Policyholder contract withdrawals	0		0
Other	0		0
Net cash flows used for financing activities	(1,064)		(333)
Effect of foreign currency rate changes on cash and cash equivalents	0		0
Net increase (decrease) in cash	5		17
Cash – beginning of period	1	[1],[2]	0	[3]
Cash – end of period	6	[2],[4]	17	[3]
Chubb INA Holdings Inc (Subsidiary Issuer)
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Net cash flows from operating activities	3,892		(46)
Payments To Acquire Available For Sale Securities Debt Condensed	(154)
Purchases of fixed maturities held to maturity	0		0
Purchases of equity securities	0		0
Proceeds From Sale Of Available For Sale Securities Debt Condensed	66		0
Sales of equity securities	0		0
Maturities and redemptions of fixed maturities available for sale	59		0
Maturities and redemptions of fixed maturities held to maturity	0		0
Net change in short-term investments	7,627		215
Net derivative instruments settlements	(10)		(10)
Acquisition of subsidiaries (net of cash acquired of $71 and $620)	(14,282)		0
Payment Of Contributions To Subsidiary	(20)		(625)
Other	(3)		(25)
Net cash flows used for investing activities	(6,717)		(445)
Dividends paid on Common Shares	0		0
Common Shares repurchased			0
Proceeds from issuance of long-term debt			800
Proceeds from issuance of repurchase agreements	0		0
Repayment of long-term debt			(450)
Repayments of repurchase agreements	0		0
Proceeds from share-based compensation plans, including windfall tax benefits	0		0
Dividend to Parent Company	0		0
Capital contribution	2,330
Advances To From Affiliates Financing Activities	219		272
Net proceeds from (payments to) affiliated notional cash pooling program	280	[2]	(121)	[3]
Policyholder contract deposits	0		0
Policyholder contract withdrawals	0		0
Other	(4)		(6)
Net cash flows used for financing activities	2,825		495
Effect of foreign currency rate changes on cash and cash equivalents	0		0
Net increase (decrease) in cash	0		4
Cash – beginning of period	2	[1],[2]	1	[3]
Cash – end of period	2	[2],[4]	5	[3]
Other Chubb Limited Subsidiaries
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Net cash flows from operating activities	3,918		2,671
Payments To Acquire Available For Sale Securities Debt Condensed	(23,683)		(13,052)
Purchases of fixed maturities held to maturity	(189)		(39)
Purchases of equity securities	(100)		(122)
Proceeds From Sale Of Available For Sale Securities Debt Condensed	13,797		5,233
Sales of equity securities	963		150
Maturities and redemptions of fixed maturities available for sale	6,877		5,257
Maturities and redemptions of fixed maturities held to maturity	627		552
Net change in short-term investments	4,239		206
Net derivative instruments settlements	(171)		72
Acquisition of subsidiaries (net of cash acquired of $71 and $620)	34		259
Payment Of Contributions To Subsidiary	(2,330)		0
Other	29		(121)
Net cash flows used for investing activities	93		(1,605)
Dividends paid on Common Shares	0		0
Common Shares repurchased			(758)
Proceeds from issuance of long-term debt			0
Proceeds from issuance of repurchase agreements	1,457		1,478
Repayment of long-term debt			(1)
Repayments of repurchase agreements	(1,455)		(1,477)
Proceeds from share-based compensation plans, including windfall tax benefits	117		89
Dividend to Parent Company	(7,372)		(276)
Capital contribution	2,350		625
Advances To From Affiliates Financing Activities	39		144
Net proceeds from (payments to) affiliated notional cash pooling program	0	[2]	0	[3]
Policyholder contract deposits	473		351
Policyholder contract withdrawals	(247)		(159)
Other	0		0
Net cash flows used for financing activities	(4,638)		16
Effect of foreign currency rate changes on cash and cash equivalents	42		(114)
Net increase (decrease) in cash	(585)		968
Cash – beginning of period	2,743	[1],[2]	1,209	[3]
Cash – end of period	$ 2,158	[2],[4]	$ 2,177	[3]
The Chubb Corporation [Member]
Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items]
Debt Instrument, Face Amount					$ 3,300

[1] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[2] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016 and December 31, 2015, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[3] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2015 and December 31, 2014, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.

[4] Chubb maintains two notional multicurrency cash pools (Pools) with a third-party bank. Various Chubb entities participate in one or the other of the Pools, pursuant to which credit and debit balances in individual Chubb accounts are translated daily into a single currency and pooled on a notional basis. Individual Chubb entities are permitted to overdraw on their individual accounts provided the overall Pool balances do not fall below zero. At September 30, 2016, the cash balance of one or more entities was negative; however, the overall Pool balances were positive.