Reinsurance Group of America (RGA) 10-Q 1 Nov 24 2024 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2024	Oct. 22, 2024
Cover [Abstract]
Entity Incorporation, State or Country Code	MO
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Amendment flag	false
Entity registrant name	REINSURANCE GROUP OF AMERICA, INCORPORATED
Entity central index key	0000898174
Entity current reporting status	Yes
Entity Interactive Data Current	Yes
Current fiscal year end date	--12-31
Entity filer category	Large Accelerated Filer
Common Shares Outstanding		65,864,330
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Small Business	false
Entity Tax Identification Number	43-1627032
Document Transition Report	false
Entity File Number	1-11848

Document and Entity Informati_2

Document and Entity Information Address	9 Months Ended
	Sep. 30, 2024
Document Information [Line Items]
Entity Address, Address Line One	16600 Swingley Ridge Road
Entity Address, City or Town	Chesterfield
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	63017
City Area Code	636
Local Phone Number	736-7000

Document and Entity Informati_3

Document and Entity Information Document and Entity Information Entity Listings - NEW YORK STOCK EXCHANGE, INC. [Member]	9 Months Ended
	Sep. 30, 2024
RGA [Member]
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.01
Trading Symbol	RGA
Security Exchange Name	NYSE
RZA [Member]
Entity Information [Line Items]
Title of 12(b) Security	5.75% Fixed-To-Floating Rate Subordinated Debentures due 2056
Trading Symbol	RZB
Security Exchange Name	NYSE
RZB [Member]
Entity Information [Line Items]
Title of 12(b) Security	7.125% Fixed Rate Subordinated Debentures due 2052
Trading Symbol	RZC
Security Exchange Name	NYSE

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2024		Dec. 31, 2023
Assets
Fixed maturity securities available-for-sale, at fair value (amortized cost of $81,606 and $64,977; allowance for credit losses of $120 and $75)	$ 78,149	[1]	$ 60,467	[2]
Available-for-sale Securities, Equity Securities	155		139
Mortgage loans (net of allowance for credit losses of $87 and $67)	8,388		7,377
Policy loans	1,285		1,206
Funds withheld at interest	5,545		5,683
Real Estate Investments, Joint Ventures	2,972		2,635
Short-term investments	381		222
Other invested assets	1,361		1,171
Total investments	98,236		78,900
Cash and cash equivalents	5,195		2,970
Accrued investment income	995		759
Premiums receivable and other reinsurance balances	3,738		3,528
Reinsurance Recoverables, Including Reinsurance Premium Paid	5,438		5,448
Deferred policy acquisition costs	5,477		4,617
Other assets	1,179		1,401
Total assets	120,258		97,623
Market Risk Benefit, Net Amount at Risk	247		258
Funds Held under Reinsurance Agreements, Liability	4,809		4,483
Liabilities and equity
Future policy benefits	55,933		41,231
Interest-sensitive contract liabilities	34,357		30,273
Other policy claims and benefits	2,875		2,730
Other reinsurance balances	955		1,103
Deferred income taxes	2,059		1,862
Other liabilities	2,739		2,085
Long-term debt	5,067		4,427
Total liabilities	109,041		88,452
Commitments and contingent liabilities (See Note 15)
Equity
Preferred stock – par value $0.01 per share, 10,000,000 shares authorized, no shares issued or outstanding	0		0
Common stock – par value $0.01 per share, 140,000,000 shares authorized, 85,310,598 shares issued at September 30, 2024 and December 31, 2023	1		1
Additional paid-in-capital	2,577		2,544
Retained earnings	9,166		8,805
Treasury stock, at cost – 19,446,714 and 19,689,885 shares	(1,889)		(1,900)
Accumulated other comprehensive income (loss)	1,272		(369)
Total RGA, Inc. shareholders’ equity	11,127		9,081
Stockholders' Equity Attributable to Noncontrolling Interest	90		90
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	11,217		9,171
Total liabilities and shareholders’ equity	$ 120,258		$ 97,623
[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of September 30, 2024, the fair value of such investments was $921 million.

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS PARENTHETICAL - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Available for Sale at Fair value - Amortized cost	$ 81,606	$ 64,977
Preferred stock par value (per share)	$ 10,000
Common stock par value (per share)	$ 10,000	$ 10,000
Common stock shares authorized	140,000,000	140,000,000
Common Stock, Shares, Issued	85,310,598	85,310,598
Allowance for Loan and Lease Losses, Real Estate	$ 87	$ 67
Financing Receivable, Allowance for Credit Loss	$ 120	75
Preferred stock shares authorized	10,000,000
Real Estate Investments, Joint Ventures	$ 2,972	2,635
Market Risk Benefit, Net Amount at Risk	$ 247	$ 258
Treasury Stock, Common, Shares	19,446,714	19,689,885
Funds Held under Reinsurance Agreements, Liability	$ 4,809	$ 4,483
Preferred stock shares authorized	10,000,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenues
Net premiums	$ 4,391	$ 4,255	$ 13,687	$ 10,977
Net investment income	1,188	922	3,231	2,635
Investment related gains (losses), net	(78)	(126)	(498)	(326)
Other revenues	150	102	446	274
Total revenues	5,651	5,153	16,866	13,560
Benefits and expenses
Claims and other policy benefits	4,116	3,959	12,960	10,035
Liability for Future Policy Benefit, Remeasurement Gain (Loss)	151	(82)	37	(95)
Market Risk Benefit, Change in Fair Value, Gain (Loss)	31	(21)	(12)	(38)
Interest credited	310	223	795	647
Policy acquisition costs and other insurance expenses	452	348	1,230	1,028
Other operating expenses	299	274	883	799
Interest expense	78	72	218	188
Total benefits and expenses	5,437	4,773	16,111	12,564
Income before income taxes	214	380	755	996
Provision for income taxes	56	91	181	247
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	158	289	574	749
Net Income (Loss) Attributable to Noncontrolling Interest	2	2	5	5
Net income	$ 156	$ 287	$ 569	$ 744
Earnings per share
Basic earnings per share	$ 2.37	$ 4.34	$ 8.64	$ 11.19
Diluted earnings per share	$ 2.33	$ 4.29	$ 8.53	$ 11.06

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Comprehensive income (loss)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 158	$ 289	$ 574	$ 749
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	22	(59)	39	83
Net unrealized investment gains (losses)	1,894	(1,780)	868	(1,163)
Effect of updating discount rates on future policy benefits	(624)	1,906	731	1,611
Change in instrument-specific credit risk for market risk benefits	0	(6)	3	(6)
Defined benefit pension and postretirement plan adjustments	0	4	0	13
Total other comprehensive income (loss), net of tax	1,292	65	1,641	538
Total comprehensive income	1,450	354	2,215	1,287
Comprehensive income attributable to noncontrolling interest	2	2	5	5
Total comprehensive income attributable to RGA, Inc.	$ 1,448	$ 352	$ 2,210	$ 1,282

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common
Stockholders' Equity Attributable to Parent	$ 7,081	$ 1	$ 2,502	$ 8,169	$ (1,871)	$ (1,720)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	7,171
Stockholders' Equity Attributable to Noncontrolling Interest	90
Net income	744
Other Comprehensive Income (Loss), Net of Tax	538
Dividends, Common Stock, Cash	(163)			(163)
Treasury Stock, Value, Acquired, Cost Method	(169)					169
Stock Issued During Period, Value, Treasury Stock Reissued	(32)		(32)	(37)		(37)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(5)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	749
Net Income (Loss) Attributable to Noncontrolling Interest	5
Stockholders' Equity Attributable to Parent	7,805	1	2,522	8,483	(1,398)	(1,803)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	7,895
Stockholders' Equity Attributable to Noncontrolling Interest	90
Net income	287
Other Comprehensive Income (Loss), Net of Tax	65				65
Dividends, Common Stock, Cash	(56)			(56)
Treasury Stock, Value, Acquired, Cost Method	(50)					50
Stock Issued During Period, Value, Treasury Stock Reissued	(12)		(12)	(1)		(1)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(2)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	289
Net Income (Loss) Attributable to Noncontrolling Interest	2
Stockholders' Equity Attributable to Parent	8,063	1	2,534	8,713	(1,333)	(1,852)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	8,153
Stockholders' Equity Attributable to Noncontrolling Interest	90
Stockholders' Equity Attributable to Parent	9,081	1	2,544	8,805	(369)	(1,900)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	9,171
Stockholders' Equity Attributable to Noncontrolling Interest	90
Net income	569
Other Comprehensive Income (Loss), Net of Tax	1,641				1,641
Dividends, Common Stock, Cash	(171)			(171)
Treasury Stock, Value, Acquired, Cost Method	(26)					26
Stock Issued During Period, Value, Treasury Stock Reissued	(33)		(33)	(37)		(37)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(5)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	574
Net Income (Loss) Attributable to Noncontrolling Interest	5
Stockholders' Equity Attributable to Parent	9,735	1	2,567	9,076	(20)	(1,889)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	9,825
Stockholders' Equity Attributable to Noncontrolling Interest	90
Net income	156
Other Comprehensive Income (Loss), Net of Tax	1,292				1,292
Dividends, Common Stock, Cash	(59)			(59)
Treasury Stock, Value, Acquired, Cost Method	(7)					7
Stock Issued During Period, Value, Treasury Stock Reissued	(10)		(10)	(7)		(7)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(2)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	158
Net Income (Loss) Attributable to Noncontrolling Interest	2
Stockholders' Equity Attributable to Parent	11,127	$ 1	$ 2,577	$ 9,166	$ 1,272	$ (1,889)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	11,217
Stockholders' Equity Attributable to Noncontrolling Interest	$ 90

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders Equity Parenthetical - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Stockholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.89	$ 0.85	$ 2.59	$ 2.45

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash Flows from Operating Activities:
Net Cash Provided by (Used in) Operating Activities	$ 7,770	$ 2,818
Cash flows from investing activities
Sales of fixed maturity securities available-for-sale	21,499	5,832
Purchases of fixed maturity securities available-for-sale	(30,256)	(8,751)
Maturities of fixed maturity securities available-for-sale	1,030	753
Sales of equity securities	7	1
Purchases of equity securities	(18)	(4)
Principal payments on mortgage loans	386	265
Cash invested in mortgage loans	(1,118)	(962)
Deposits in (withdrawals from) funds withheld at interest	257	283
Sales of limited partnerships and real estate joint ventures	181	328
Purchases of limited partnerships and real estate joint ventures	(435)	(413)
Sales of short-term investments	596	268
Purchases of short-term investments	(691)	(363)
Maturities of short-term investments	191	119
Change in other invested assets	(37)	21
Other, net	25	31
Net cash used in investing activities	(8,383)	(2,592)
Cash flows from financing activities
Dividends to shareholders	(171)	(163)
Proceeds from long-term debt issuance, net	640	890
Principal payments of long-term debt	3	402
Purchase of treasury stock	(26)	(169)
Change in cash collateral for derivatives and other arrangements	375	300
Change in deposit asset on reinsurance	221	41
Deposits on investment-type policies and contracts	5,720	1,884
Withdrawals on investment-type policies and contracts	(3,892)	(2,652)
Net cash provided by (used in) financing activities	2,864	(271)
Effect of exchange rate changes on cash	(26)	(62)
Cash and Cash Equivalents, Period Increase (Decrease)	2,225	(107)
Cash and cash equivalents, beginning of period		2,927
Cash and cash equivalents	5,195
Cash and cash equivalents, end of period	5,195	2,820
Supplemental disclosures of cash flow information
Interest Paid, Excluding Capitalized Interest, Operating Activities	159	146
Income Taxes Paid, Net	50	240
Transfer to Investments	9,052	1,459
Other Significant Noncash Transaction, Value of Consideration Received	$ 418	$ 0

Business and Basis of Presentat

Business and Basis of Presentation	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	BUSINESS AND BASIS OF PRESENTATION Business Reinsurance Group of America, Incorporated (“RGA”) is an insurance holding company that was formed on December 31, 1992. RGA and its subsidiaries (collectively, the “Company”) is engaged in providing traditional reinsurance, which includes individual and group life and health, disability and critical illness reinsurance. The Company also provides financial solutions, which includes longevity reinsurance, asset-intensive products (primarily annuities), financial reinsurance, capital solutions and stable value products. Basis of Presentation The unaudited condensed consolidated financial statements of the Company have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X of the Securities and Exchange Commission (“SEC”). Accordingly, these condensed consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with the Company’s 2023 Annual Report on Form 10-K filed with the SEC on February 26, 2024 (the “2023 Annual Report”). In the opinion of management, all adjustments, including normal recurring adjustments necessary for a fair presentation have been included. Interim results are not necessarily indicative of the results that may be expected for the year ending December 31, 2024. Consolidation

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE The following table sets forth the computation of basic and diluted earnings per share on net income (in millions, except per share information): Three months ended September 30, Nine months ended September 30, 2024 2023 2024 2023 Earnings: Net income (numerator for basic and diluted calculations) $ 158 $ 289 $ 574 $ 749 Less: Net income attributable to noncontrolling interest 2 2 5 5 Net income available to RGA, Inc. shareholders $ 156 $ 287 $ 569 $ 744 Shares: Weighted average outstanding shares (denominator for basic calculation) 66 66 66 66 Equivalent shares from outstanding stock awards 1 1 1 1 Diluted shares (denominator for diluted calculation) 67 67 67 67 Earnings per share: Basic $ 2.37 $ 4.34 $ 8.64 $ 11.19 Diluted $ 2.33 $ 4.29 $ 8.53 $ 11.06

Equity

Equity	9 Months Ended
	Sep. 30, 2024
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	EQUITY Common stock The changes in number of common stock shares issued, held in treasury and outstanding are as follows for the periods indicated: Issued Held In Treasury Outstanding Balance, December 31, 2023 85,310,598 19,689,885 65,620,713 Common stock acquired — — — Equity based compensation (1) — (243,171) 243,171 Balance, September 30, 2024 85,310,598 19,446,714 65,863,884 Issued Held In Treasury Outstanding Balance, December 31, 2022 85,310,598 18,634,390 66,676,208 Common stock acquired — 1,069,113 (1,069,113) Equity based compensation (1) — (265,118) 265,118 Balance, September 30, 2023 85,310,598 19,438,385 65,872,213 (1) Represents net shares issued from treasury pursuant to the Company’s equity based compensation programs. Common Stock Held in Treasury Common stock held in treasury is accounted for at average cost. Gains resulting from the reissuance of common stock held in treasury are credited to additional paid-in capital. Losses resulting from the reissuance of common stock held in treasury are charged first to additional paid-in capital to the extent the Company has previously recorded gains on treasury share transactions, then to retained earnings. On January 23, 2024, the Company’s board of directors authorized a share repurchase program for up to $500 million of its outstanding common stock. The authorization was effective immediately and does not have an expiration date. During the nine months ended September 30, 2024, the Company did not repurchase any shares of common stock under this program. Noncontrolling Interest In 2022, Papara Financing LLC (“Papara”), a subsidiary of RGA Reinsurance Company, issued nonconvertible preferred interests to an unaffiliated third party. The membership interests in Papara consist of (1) common interests, which are held by RGA Reinsurance Company, and (2) preferred interests. The preferred interests, included in noncontrolling interest, total $90 million. Accumulated Other Comprehensive Income (Loss) The balance of and changes in each component of accumulated other comprehensive income (loss) (“AOCI”) for the nine months ended September 30, 2024 and 2023 are as follows (dollars in millions): Accumulated Other Comprehensive Income (Loss), Net of Income Tax Foreign Currency Translation Adjustments Net Unrealized Investment Gains (Losses) (1) Pension and Effect of Updating Discount Rates on Future Policy Benefits Instrument-Specific Credit Risk for Market Risk Benefits Total Balance, December 31, 2023 $ 69 $ (3,668) $ (29) $ 3,256 $ 3 $ (369) Other comprehensive income (loss) before reclassifications 50 696 (1) 938 4 1,687 Amounts reclassified from AOCI — 389 1 — — 390 Deferred income tax benefit (expense) (11) (217) — (207) (1) (436) Balance, September 30, 2024 $ 108 $ (2,800) $ (29) $ 3,987 $ 6 $ 1,272 Accumulated Other Comprehensive Income (Loss), Net of Income Tax Foreign Currency Translation Adjustments Net Unrealized Investment Gains (Losses) (1) Pension and Effect of Updating Discount Rates on Future Policy Benefits Instrument-Specific Credit Risk for Market Risk Benefits Total Balance, December 31, 2022 $ (116) $ (5,496) $ (27) $ 3,755 $ 13 $ (1,871) Other comprehensive income (loss) before reclassifications 116 (1,652) 16 2,050 (8) 522 Amounts reclassified from AOCI — 140 1 — — 141 Deferred income tax benefit (expense) (33) 349 (4) (439) 2 (125) Balance, September 30, 2023 $ (33) $ (6,659) $ (14) $ 5,366 $ 7 $ (1,333) (1) Includes cash flow hedges of $(229) and $(218) as of September 30, 2024 and December 31, 2023, respectively, and $(351) and $(205) as of September 30, 2023 and December 31, 2022, respectively. See Note 11 – “Derivative Instruments” for additional information on cash flow hedges. The following table presents the amounts of AOCI reclassifications for the three and nine months ended September 30, 2024 and 2023 (dollars in millions): Amount Reclassified from AOCI Three months ended September 30, Nine months ended September 30, Affected Line Item in Details about AOCI Components 2024 2023 2024 2023 Net unrealized investment gains (losses): Net unrealized gains (losses) on available-for-sale securities $ (68) $ (36) $ (356) $ (132) Investment related gains (losses), net Cash flow hedges – Interest rate 3 3 9 7 (1) Cash flow hedges – Currency/Interest rate (20) (8) (42) (15) (1) Total (85) (41) (389) (140) Provision for income taxes 18 13 79 36 Net unrealized gains (losses), net of tax $ (67) $ (28) $ (310) $ (104) Amortization of defined benefit plan items: Prior service cost (credit) $ — $ — $ 1 $ 1 (2) Actuarial gains (losses) (1) (1) (2) (2) (2) Total (1) (1) (1) (1) Provision for income taxes — — — — Amortization of defined benefit plans, net of tax $ (1) $ (1) $ (1) $ (1) Total reclassifications for the period $ (68) $ (29) $ (311) $ (105) (1) See Note 11 – “Derivative Instruments” for additional information on cash flow hedges. (2) This AOCI component is included in the computation of the net periodic pension cost. See Note 14 – “Employee Benefit Plans” for additional details.

Equity Based Compensation

Equity Based Compensation	9 Months Ended
	Sep. 30, 2024
Share-Based Payment Arrangement [Abstract]
Equity Based Compensation	Equity Based Compensation Equity compensation expense was $37 million and $35 million for the nine months ended September 30, 2024 and 2023, respectively. In the first quarter of 2024, the Company granted 106,233 stock appreciation rights at $185.28 weighted average exercise price per share, 116,883 performance shares and 81,527 restricted stock units to employees. As of September 30, 2024, 1,221,419 share awards at a weighted average strike price per share of $121.74 were vested and exercisable with a remaining weighted average exercise period of 4.4 years. As of September 30, 2024, the total compensation cost of non-vested awards not yet recognized in the financial statements was $44 million. It is estimated that these costs will vest over a weighted average period of 0.8 years.

Future Policy Benefits

Future Policy Benefits	9 Months Ended
	Sep. 30, 2024
Insurance [Abstract]
Liability for Future Policy Benefits and Unpaid Claims Disclosure	FUTURE POLICY BENEFITS Liability for Future Policy Benefits – Traditional Business The Company reviews actual and anticipated experience compared to the assumptions used to establish policy benefits on a quarterly basis and will update those assumptions if evidence suggests that they should be revised. It is the Company’s policy to complete its annual assumption review during the third quarter of each year. However, updates may occur in other quarters if information becomes available during the quarter that indicates an assumption update is necessary. Significant assumptions used to compute the liability for future policy benefits for the Traditional business include mortality, morbidity, lapse rates and discount rates (both accretion and current). During the third quarter of 2024 and 2023, the Company completed its annual assumption review resulting in a $39 million and $85 million increase in the Company’s liability for future policy benefits for its Traditional business during 2024 and 2023, respectively. The increase in the liability in 2024 and 2023 was primarily the result of updating the mortality and lapse assumptions used to measure the liability for future policy benefits. The Company also updated the underlying market data used to determine the current discount rate resulting in changes to the discount rate assumption used to measure the net liability for future policy benefits. The following tables provide the balances of and changes in the Company’s liability for future policy benefits for long-duration reinsurance contracts for its Traditional business, which primarily consists of individual life, group life and critical illness reinsurance for the nine months ended September 30, 2024 and 2023 (dollars in millions): For the nine months ended September 30, 2024: U.S. and Latin America – Traditional Canada – Traditional Europe, Middle East and Africa – Traditional Asia Pacific – Traditional Present Value of Expected Net Premiums Beginning of year balance at original discount rate $ 76,943 $ 22,689 $ 15,328 $ 42,741 Effect of changes in cash flow assumptions 67 (592) 187 975 Effect of actual variances from expected experience (510) 183 421 210 Adjusted balance, beginning of year 76,500 22,280 15,936 43,926 Issuances (1) 4,980 385 861 2,825 Interest accrual (2) 2,617 560 394 843 Net premiums collected (3) (4,390) (737) (1,119) (1,653) Derecognition (4) (1,000) — — — Foreign currency translation (6) (480) 751 (139) Ending balance at original discount rate 78,701 22,008 16,823 45,802 Effect of changes in discount rate assumptions (4,225) (4,388) (2,803) (12,360) Balance, end of period $ 74,476 $ 17,620 $ 14,020 $ 33,442 Present Value of Expected Future Policy Benefits Beginning of year balance at original discount rate $ 89,036 $ 26,275 $ 16,756 $ 47,370 Effect of changes in cash flow assumptions 36 (620) 212 1,048 Effect of actual variances from expected experience (623) 177 417 121 Adjusted balance, beginning of year 88,449 25,832 17,385 48,539 Issuances (1) 4,980 385 861 2,825 Interest accrual (2) 3,049 721 425 964 Benefit payments (5) (4,292) (799) (1,115) (1,476) Derecognition (4) (1,008) — — — Foreign currency translation (5) (563) 794 (138) Ending balance at original discount rate 91,173 25,576 18,350 50,714 Effect of changes in discount rate assumptions (5,364) (3,651) (3,131) (14,496) Balance, end of period $ 85,809 $ 21,925 $ 15,219 $ 36,218 Liability for future policy benefits $ 11,333 $ 4,305 $ 1,199 $ 2,776 Less: reinsurance recoverable (726) (272) (24) (85) Net liability for future policy benefits $ 10,607 $ 4,033 $ 1,175 $ 2,691 Weighted average duration of the liability (in years) 12 14 8 15 Weighted average interest accretion rate 4.6 % 3.6 % 3.3 % 2.6 % Weighted average current discount rate 5.1 % 4.8 % 5.5 % 4.6 % (1) Issuances: The present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new reinsurance contracts that became effective during the current period and new policies assumed on existing contracts. (2) Interest accrual: The interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (3) Net premiums collected: The portion of gross premiums collected from the ceding company that is used to fund expected benefit payments. (4) Derecognition: Includes the effects of treaty recaptures and treaty amendments that resulted in the termination of an existing treaty and the issuance of a new treaty under the internal replacement model. (5) Benefit payments: The release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal, and other benefit payments based on current assumptions. For the nine months ended September 30, 2023: U.S. and Latin America – Traditional Canada – Traditional Europe, Middle East and Africa – Traditional Asia Pacific – Traditional Present Value of Expected Net Premiums Beginning of year balance at original discount rate $ 74,207 $ 21,330 $ 14,244 $ 40,506 Effect of changes in cash flow assumptions 905 96 199 (180) Effect of actual variances from expected experience 68 408 75 9 Adjusted balance, beginning of year 75,180 21,834 14,518 40,335 Issuances (1) 3,186 369 884 2,839 Interest accrual (2) 2,619 562 373 794 Net premiums collected (3) (4,491) (700) (1,067) (1,493) Derecognition (4) (35) — — — Foreign currency translation 5 (54) (77) (1,517) Ending balance at original discount rate 76,464 22,011 14,631 40,958 Effect of changes in discount rate assumptions (10,563) (5,879) (3,145) (13,178) Balance, end of period $ 65,901 $ 16,132 $ 11,486 $ 27,780 Present Value of Expected Future Policy Benefits Beginning of year balance at original discount rate $ 85,285 $ 24,655 $ 15,454 $ 44,785 Effect of changes in cash flow assumptions 922 108 246 (171) Effect of actual variances from expected experience 73 413 84 (40) Adjusted balance, beginning of year 86,280 25,176 15,784 44,574 Issuances (1) 3,186 369 884 2,839 Interest accrual (2) 3,023 720 402 907 Benefit payments (5) (4,097) (752) (1,033) (1,287) Derecognition (4) (54) — — — Foreign currency translation 5 (60) (77) (1,559) Ending balance at original discount rate 88,343 25,453 15,960 45,474 Effect of changes in discount rate assumptions (13,185) (5,520) (3,402) (15,342) Balance, end of period $ 75,158 $ 19,933 $ 12,558 $ 30,132 Liability for future policy benefits $ 9,257 $ 3,801 $ 1,072 $ 2,352 Less: reinsurance recoverable (658) (259) (33) (115) Net liability for future policy benefits $ 8,599 $ 3,542 $ 1,039 $ 2,237 Weighted average duration of the liability (in years) 11 14 8 15 Weighted average interest accretion rate 4.7 % 3.7 % 3.5 % 2.7 % Weighted average current discount rate 5.9 % 5.4 % 6.0 % 4.9 % (1) Issuances: The present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new reinsurance contracts that became effective during the current period and new policies assumed on existing contracts. (2) Interest accrual: The interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (3) Net premiums collected: The portion of gross premiums collected from the ceding company that is used to fund expected benefit payments. (4) Derecognition: Includes the effects of treaty recaptures and treaty amendments that resulted in the termination of an existing treaty and the issuance of a new treaty under the internal replacement model. (5) Benefit payments: The release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal, and other benefit payments based on current assumptions. The Company’s Traditional business actual-to-expected variances and the effects of changes in cash flow and discount rate assumptions for the nine months ended September 30, 2024 and 2023 are summarized in the tables below: For the nine months ended September 30, 2024: Segment Liability for future policy benefits at original discount rate Changes in cash flow assumptions Actual-to-expected variance Impact of updating discount rate recognized in OCI U.S. and Latin America – Traditional $12.5 billion $(31) million $(113) million $7 million Canada – Traditional $3.6 billion $(28) million $(6) million $(134) million Europe, Middle East and Africa – Traditional $1.5 billion $25 million $(4) million $(109) million Asia Pacific – Traditional $4.9 billion $73 million $(89) million $(171) million For the nine months ended September 30, 2023: Segment Liability for future policy benefits at original discount rate Changes in cash flow assumptions Actual-to-expected variance Impact of updating discount rate recognized in OCI U.S. and Latin America – Traditional $12.0 billion $17 million $5 million $(1) million Canada – Traditional $3.4 billion $12 million $5 million $(267) million Europe, Middle East and Africa – Traditional $1.3 billion $47 million $9 million $(88) million Asia Pacific – Traditional $4.5 billion $9 million $(49) million $(233) million Liability for Future Policy Benefits – Financial Solutions Business The Company reviews actual and anticipated experience compared to the assumptions used to establish policy benefits on a quarterly basis and will update those assumptions if evidence suggests that they should be revised. The Company expects to complete its annual review and any necessary updates of cash flow assumptions used to calculate the liability for future policy benefits during the third quarter of each year. Updates may occur in other quarters if information becomes available during the quarter that indicates an assumption update is necessary. Significant assumptions used to compute the liability for future policy benefits for the Financial Solutions business include mortality, morbidity, lapse rates and discount rates (both accretion and current). During the third quarter of 2024 and 2023, the Company completed its annual assumption review resulting in a $20 million increase and $78 million decrease in the Company’s liability for future policy benefits for its Financial Solutions business during 2024 and 2023, respectively. The increase and decrease in the liability in 2024 and 2023 were primarily the result of updating the lapse and mortality assumptions used to measure the liability for future policy benefits. The Company also updated the underlying market data used to determine the current discount rate resulting in changes to the discount rate assumption used to measure the net liability for future policy benefits. The following tables provide the balances of and changes in the Company’s liability for future policy benefits, including the deferred profit liability related to the longevity business, for its Financial Solutions business, which primarily consists of longevity reinsurance, asset-intensive products, primarily annuities and financial reinsurance for the nine months ended September 30, 2024 and 2023 (dollars in millions): For the nine months ended September 30, 2024: U.S. and Latin America – Financial Solutions Canada – Financial Solutions Europe, Middle East and Africa – Financial Solutions Asia Pacific – Financial Solutions Present Value of Expected Net Premiums Beginning of year balance at original discount rate $ 1,455 $ 3,184 $ 54,832 $ 2,057 Effect of changes in cash flow assumptions 12 — (93) 1 Effect of actual variances from expected experience (3) (7) 1,025 (7) Adjusted balance, beginning of year 1,464 3,177 55,764 2,051 Issuances (1) 2,755 4,983 9,881 6,443 Interest accrual (2) 33 96 1,364 22 Net premiums collected (3) (2,867) (4,284) (4,046) (6,823) Derecognition (4) — — — — Foreign currency translation — (56) 2,596 (52) Ending balance at original discount rate 1,385 3,916 65,559 1,641 Effect of changes in discount rate assumptions (179) (204) (8,677) (232) Balance, end of period $ 1,206 $ 3,712 $ 56,882 $ 1,409 Present Value of Expected Future Policy Benefits Beginning of year balance at original discount rate $ 6,843 $ 3,210 $ 60,938 $ 8,019 Effect of changes in cash flow assumptions 20 — (90) 10 Effect of actual variances from expected experience — (7) 1,026 (8) Adjusted balance, beginning of year 6,863 3,203 61,874 8,021 Issuances (1) 2,882 4,983 9,881 6,443 Interest accrual (2) 276 189 1,530 129 Benefit payments (5) (538) (310) (3,676) (326) Derecognition (4) — — — — Foreign currency translation — (3) 2,918 108 Ending balance at original discount rate 9,483 8,062 72,527 14,375 Effect of changes in discount rate assumptions (215) (33) (9,571) (1,544) Balance, end of period $ 9,268 $ 8,029 $ 62,956 $ 12,831 Cumulative amount of fair value hedging adjustments $ 32 $ — $ — $ — Liability for future policy benefits $ 8,094 $ 4,317 $ 6,074 $ 11,422 Less: reinsurance recoverable (1,241) — — — Net liability for future policy benefits $ 6,853 $ 4,317 $ 6,074 $ 11,422 Weighted average duration of the liability (in years) 8 13 10 15 Weighted average interest accretion rate 3.9 % 4.1 % 3.1 % 1.6 % Weighted average current discount rate 4.9 % 4.7 % 5.0 % 2.8 % (1) Issuances: The present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new reinsurance contracts that became effective during the current period and new policies assumed on existing contracts. (2) Interest accrual: The interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (3) Net premiums collected: The portion of gross premiums collected from the ceding company that is used to fund expected benefit payments. (4) Derecognition: Includes the effects of treaty recaptures and treaty amendments that resulted in the termination of an existing treaty and the issuance of a new treaty under the internal replacement model. (5) Benefit payments: The release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal, and other benefit payments based on current assumptions. For the nine months ended September 30, 2023: U.S. and Latin America – Financial Solutions Canada – Financial Solutions Europe, Middle East and Africa – Financial Solutions Asia Pacific – Financial Solutions Present Value of Expected Net Premiums Beginning of year balance at original discount rate $ 1,671 $ 3,394 $ 38,782 $ 1,605 Effect of changes in cash flow assumptions (69) (54) (561) — Effect of actual variances from expected experience (20) (5) 387 (10) Adjusted balance, beginning of year 1,582 3,335 38,608 1,595 Issuances (1) 923 — 6,278 2,131 Interest accrual (2) 37 80 678 19 Net premiums collected (3) (1,064) (249) (3,045) (1,573) Derecognition (4) — — — — Foreign currency translation 2 (6) 15 (236) Ending balance at original discount rate 1,480 3,160 42,534 1,936 Effect of changes in discount rate assumptions (336) (482) (9,571) (178) Balance, end of period $ 1,144 $ 2,678 $ 32,963 $ 1,758 Present Value of Expected Future Policy Benefits Beginning of year balance at original discount rate $ 5,823 $ 3,447 $ 44,330 $ 6,561 Effect of changes in cash flow assumptions (91) (76) (595) — Effect of actual variances from expected experience (28) (13) 374 (12) Adjusted balance, beginning of year 5,704 3,358 44,109 6,549 Issuances (1) 931 — 6,278 2,141 Interest accrual (2) 173 81 807 65 Benefit payments (5) (405) (248) (2,748) (199) Derecognition (4) (16) — — — Foreign currency translation 1 (5) 37 (948) Ending balance at original discount rate 6,388 3,186 48,483 7,608 Effect of changes in discount rate assumptions (788) (480) (10,552) (997) Balance, end of period $ 5,600 $ 2,706 $ 37,931 $ 6,611 Liability for future policy benefits $ 4,456 $ 28 $ 4,968 $ 4,853 Less: reinsurance recoverable — — — — Net liability for future policy benefits $ 4,456 $ 28 $ 4,968 $ 4,853 Weighted average duration of the liability (in years) 8 7 9 15 Weighted average interest accretion rate 3.5 % 3.3 % 2.3 % 1.3 % Weighted average current discount rate 5.9 % 5.5 % 5.3 % 2.4 % (1) Issuances: The present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new reinsurance contracts that became effective during the current period and new policies assumed on existing contracts. (2) Interest accrual: The interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (3) Net premiums collected: The portion of gross premiums collected from the ceding company that is used to fund expected benefit payments. (4) Derecognition: Includes the effects of treaty recaptures and treaty amendments that resulted in the termination of an existing treaty and the issuance of a new treaty under the internal replacement model. (5) Benefit payments: The release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal, and other benefit payments based on current assumptions. The Company’s Financial Solutions business actual-to-expected variances (including the effects of model updates) and the effects of changes in cash flow and discount rate assumptions for the nine months ended September 30, 2024 and 2023 are summarized in the tables below: For the nine months ended September 30, 2024: Segment Liability for future policy benefits at original discount rate Changes in cash flow assumptions Actual-to-expected variance Impact of updating discount rate recognized in OCI U.S. and Latin America – Financial Solutions $8.1 billion $8 million $3 million $124 million Canada – Financial Solutions $4.1 billion None None $168 million Europe, Middle East and Africa – Financial Solutions $7.0 billion $3 million $1 million $(241) million Asia Pacific – Financial Solutions $12.7 billion $9 million $(1) million $(540) million For the nine months ended September 30, 2023: Segment Liability for future policy benefits at original discount rate Changes in cash flow assumptions Actual-to-expected variance Impact of updating discount rate recognized in OCI U.S. and Latin America – Financial Solutions $4.9 billion $(22) million $(8) million $(119) million Canada – Financial Solutions $26 million $(22) million $(8) million $1 million Europe, Middle East and Africa – Financial Solutions $5.9 billion $(34) million $(13) million $(67) million Asia Pacific – Financial Solutions $5.7 billion None $(2) million $(359) million Reconciliation and Other Disclosures The reconciliation of the rollforward of the liability for future policy benefits to the condensed consolidated balance sheets as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, 2024 2023 Liability for future policy benefits included in the rollforwards: Traditional: U.S. and Latin America $ 11,333 $ 9,257 Canada 4,305 3,801 Europe, Middle East and Africa 1,199 1,072 Asia Pacific 2,776 2,352 Financial Solutions: U.S. and Latin America 8,094 4,456 Canada 4,317 28 Europe, Middle East and Africa 6,074 4,968 Asia Pacific 11,422 4,853 Other long-duration contracts 117 126 Claims liability and incurred but not reported claims 5,406 5,062 Unearned revenue liability 890 499 Total liability for future policy benefits $ 55,933 $ 36,474 The amount of undiscounted and discounted expected future gross premiums and expected future benefit payments for the liability for future policy benefits included in the rollforwards as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, 2024 2023 Undiscounted Discounted Undiscounted Discounted Expected future gross premiums Traditional: U.S. and Latin America $ 182,731 $ 87,831 $ 177,307 $ 77,008 Canada 54,520 21,928 54,378 19,902 Europe, Middle East and Africa 28,668 15,609 24,778 13,131 Asia Pacific 103,658 42,453 90,652 35,372 Financial Solutions: U.S. and Latin America 2,816 1,828 3,012 1,794 Canada 6,306 4,101 4,545 2,856 Europe, Middle East and Africa 111,948 57,940 68,410 36,603 Asia Pacific 4,089 2,988 3,797 2,828 Expected future benefit payments Traditional: U.S. and Latin America $ 191,246 $ 85,809 $ 188,177 $ 75,158 Canada 56,312 21,925 56,423 19,933 Europe, Middle East and Africa 28,796 15,219 24,509 12,558 Asia Pacific 99,908 36,218 87,120 30,132 Financial Solutions: U.S. and Latin America 15,257 9,268 10,233 5,600 Canada 17,933 8,029 4,285 2,706 Europe, Middle East and Africa 120,917 62,956 71,027 37,931 Asia Pacific 22,330 12,831 10,522 6,611 The amount of gross premiums and interest expense recognized in the condensed consolidated statements of income for the liability for future policy benefits included in the rollforwards for the nine months ended September 30, 2024 and 2023 is as follows (dollars in millions): Gross Premiums Interest Expense September 30, September 30, 2024 2023 2024 2023 Traditional: U.S. and Latin America $ 4,658 $ 4,435 $ 432 $ 404 Canada 825 808 161 158 Europe, Middle East and Africa 1,101 1,058 31 29 Asia Pacific 2,095 1,959 121 113 Financial Solutions: U.S. and Latin America 2,816 979 243 136 Canada 120 68 93 1 Europe, Middle East and Africa 669 515 166 129 Asia Pacific 158 171 107 46 Total $ 12,442 $ 9,993 $ 1,354 $ 1,016

Policyholder Account Balances

Policyholder Account Balances	9 Months Ended
	Sep. 30, 2024
Insurance [Abstract]
Long-Duration Insurance Contracts Disclosure	POLICYHOLDER ACCOUNT BALANCES Policyholder Account Balances The following tables provide the balances of and changes in the Company’s liability for its policyholder account balances, reflected in interest-sensitive contract liabilities, for the nine months ended September 30, 2024 and 2023 (dollars in millions): For the nine months ended September 30, 2024: U.S. and Latin America – Traditional U.S. and Latin America – Financial Solutions Asia Pacific – Financial Solutions Balance, beginning of year $ 1,612 $ 17,838 $ 3,990 Deposits 1,779 101 1,262 Policy charges (103) (61) (137) Surrenders and withdrawals (11) (1,598) (903) Benefit payments (91) (346) (331) Interest credited 132 432 84 Foreign currency translation — — 4 Balance, end of period $ 3,318 $ 16,366 $ 3,969 Less: reinsurance recoverable — (2,844) — Balance, end of period, after reinsurance $ 3,318 $ 13,522 $ 3,969 Weighted average crediting rate 3.1 % 3.5 % 3.7 % Net amount at risk (1) $ 34,671 $ 6,614 $ 13 Cash surrender value $ 3,313 $ 16,262 $ 3,618 For the nine months ended September 30, 2023: U.S. and Latin America – Traditional U.S. and Latin America – Financial Solutions Asia Pacific – Financial Solutions Balance, beginning of year $ 1,683 $ 18,906 $ 3,351 Deposits 20 84 765 Policy charges (23) (26) (5) Surrenders and withdrawals (11) (1,517) (93) Benefit payments (96) (357) (79) Interest credited 49 425 82 Foreign currency translation — — (43) Balance, end of period $ 1,622 $ 17,515 $ 3,978 Less: reinsurance recoverable — (1,501) — Balance, end of period, after reinsurance $ 1,622 $ 16,014 $ 3,978 Weighted average crediting rate 4.4 % 3.3 % 3.0 % Net amount at risk (1) $ 664 $ 2,410 $ — Cash surrender value $ 1,608 $ 17,479 $ 3,760 (1) Net amount at risk is defined as the guaranteed amount less the account value as of the balance sheet date. The balance represents the amount of the claim the Company would incur if death claims were filed on all contracts on the balance sheet date. Information regarding the Company’s policyholder account balances as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, 2024 2023 Policyholder account balances included in the rollforwards: Traditional: U.S. and Latin America $ 3,318 $ 1,622 Financial Solutions: U.S. and Latin America 16,366 17,515 Asia Pacific 3,969 3,978 Other policyholder account balances U.S. and Latin America – Financial Solutions 76 51 Total policyholder account balances $ 23,729 $ 23,166 The balance of account values by range of guaranteed minimum crediting rates and the related range of difference, in basis points, between rates being credited to policyholders and the respective guaranteed minimums as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, 2024 Range of Guaranteed Minimum Crediting Rate At Guaranteed Minimum 1 Basis Point – 50 Basis Points Above 51 Basis Points – 100 Basis Points Above 101 Basis Points – 150 Basis Points Above Greater Than 150 Basis Points Above Total U.S. and Latin America – Traditional Less than 1.00% $ 702 $ — $ — $ — $ — $ 702 1.00 – 1.99% 56 2 8 — — 66 2.00 – 2.99% 108 — — 1 — 109 3.00 – 3.99% 495 7 117 — — 619 4.00% and Greater 739 103 980 — — 1,822 Total $ 2,100 $ 112 $ 1,105 $ 1 $ — $ 3,318 U.S. and Latin America – Financial Solutions Less than 1.00% $ — $ — $ — $ — $ — $ — 1.00 – 1.99% 1,342 12 10 35 29 1,428 2.00 – 2.99% 1,301 15 35 530 170 2,051 3.00 – 3.99% 3,693 213 116 4 2 4,028 4.00% and Greater 8,827 32 — — — 8,859 Total $ 15,163 $ 272 $ 161 $ 569 $ 201 $ 16,366 Asia Pacific – Financial Solutions Less than 1.00% $ 193 $ — $ — $ — $ — $ 193 1.00 – 1.99% 477 — — — — 477 2.00 – 2.99% 492 — — — — 492 3.00 – 3.99% 993 — — — — 993 4.00% and Greater 1,814 — — — — 1,814 Total $ 3,969 $ — $ — $ — $ — $ 3,969 September 30, 2023 Range of Guaranteed Minimum Crediting Rate At Guaranteed Minimum 1 Basis Point – 50 Basis Points Above 51 Basis Points – 100 Basis Points Above 101 Basis Points – 150 Basis Points Above Greater Than 150 Basis Points Above Total U.S. and Latin America – Traditional Less than 1.00% $ — $ — $ — $ — $ — $ — 1.00 – 1.99% — — — — — — 2.00 – 2.99% — — — — — — 3.00 – 3.99% — — — — — — 4.00% and Greater 514 108 1,000 — — 1,622 Total $ 514 $ 108 $ 1,000 $ — $ — $ 1,622 U.S. and Latin America – Financial Solutions Less than 1.00% $ — $ — $ — $ — $ — $ — 1.00 – 1.99% 1,681 10 15 63 35 1,804 2.00 – 2.99% 1,625 14 42 608 62 2,351 3.00 – 3.99% 4,335 234 81 2 — 4,652 4.00% and Greater 8,665 43 — — — 8,708 Total $ 16,306 $ 301 $ 138 $ 673 $ 97 $ 17,515 Asia Pacific – Financial Solutions Less than 1.00% $ 281 $ — $ — $ — $ — $ 281 1.00 – 1.99% 699 — — — — 699 2.00 – 2.99% 827 — — — — 827 3.00 – 3.99% 1,289 — — — — 1,289 4.00% and Greater 882 — — — — 882 Total $ 3,978 $ — $ — $ — $ — $ 3,978

Unpaid Claims and Claims Expens

Unpaid Claims and Claims Expense Short Duration Contracts	3 Months Ended
	Sep. 30, 2024
Insurance [Abstract]
Short-Duration Insurance and Deposit Contracts [Text Block]	UNPAID CLAIMS AND CLAIM EXPENSE – SHORT-DURATION CONTRACTS Rollforward of Claims and Claim Adjustment Expenses The liability for unpaid claims for short-duration contracts is reported in other policy claims and benefits on the Company’s condensed consolidated balance sheets. Activity associated with unpaid claims is summarized below (dollars in millions): Nine months ended September 30, 2024 2023 Balance, beginning of year $ 2,730 $ 2,480 Less: reinsurance recoverable (80) (57) Net balance, beginning of year 2,650 2,423 Incurred: Current year 1,161 1,268 Prior years (83) (89) Total incurred 1,078 1,179 Payments: Current year (240) (278) Prior years (700) (721) Total payments (940) (999) Other changes: Interest accretion 29 25 Foreign exchange adjustments (4) (45) Total other changes 25 (20) Net balance, end of period 2,813 2,583 Plus: reinsurance recoverable 62 71 Balance, end of period $ 2,875 $ 2,654 Incurred claims associated with prior periods are primarily due to the development of claims for prior years being different than were anticipated when the liabilities for unpaid claims were originally estimated. These trends have been considered in establishing the current year liability for unpaid claims.

Market Risk Benefits

Market Risk Benefits	9 Months Ended
	Sep. 30, 2024
Insurance [Abstract]
Market Risk Benefits	MARKET RISK BENEFITS The following table provides the balances of and changes in the Company’s market risk benefits for the nine months ended September 30, 2024 and 2023 (dollars in millions): U.S. and Latin America – Financial Solutions Nine months ended September 30, 2024 2023 Balance, beginning of year $ 249 $ 247 Balance, beginning of year, before effect of changes in the instrument-specific credit risk 253 263 Interest accrual 8 9 Attributed fees collected 19 19 Benefit payments — 1 Effect of changes in future assumptions 3 16 Effect of changes in interest rates (3) (54) Effect of changes in equity markets (39) (25) Effect of changes in volatility — (5) Other market impacts (13) (11) Actual policyholder behavior different from expected behavior 13 12 Balance, end of period, before effect of changes in the instrument-specific credit risk 241 225 Effect of changes in the instrument-specific credit risk (8) (9) Balance, end of period 233 216 Less: reinsurance recoverable — — Balance, end of period, after reinsurance $ 233 $ 216 Net amount at risk $ 1,285 $ 1,375 Weighted average attained age of contract holders (in years) 71 71 The reconciliation of the rollforward for market risk benefits to the condensed consolidated balance sheets as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, September 30, 2024 2023 Asset (1) Liability Net Asset (1) Liability Net U.S. and Latin America – Financial Solutions $ 14 $ 247 $ (233) $ 8 $ 224 $ (216) Total market risk benefits $ 14 $ 247 $ (233) $ 8 $ 224 $ (216) (1) Included in Other assets. Fair Value Measurement See Note 12 – “Fair Value of Assets and Liabilities” for information about fair value measurement of assets and liabilities, except for market risk benefits. Market risk benefits are classified within Level 3 on the fair value hierarchy. The fair value of market risk benefits is monitored through the use of attribution reports to quantify the effect of underlying sources of fair value change, including capital market inputs based on policyholder account values, interest rates and short-term and long-term implied volatility from period to period. D uring the nine months ended September 30, 2024 and 2023, there were no material changes made to the inputs in the market risk benefits calculations, and nonfinancial assumptions were unchanged.

Deferred Policy Acquisition Cos

Deferred Policy Acquisition Costs	9 Months Ended
	Sep. 30, 2024
Insurance [Abstract]
Deferred Policy Acquisition Costs	DEFERRED POLICY ACQUISITION COSTS The following tables provide the balances of and changes in deferred policy acquisition costs for the Company’s Traditional business for the nine months ended September 30, 2024 and 2023 (dollars in millions): For the nine months ended September 30, 2024: U.S. and Latin America – Traditional Canada – Traditional Europe, Middle East and Africa – Traditional Asia Pacific – Traditional Balance, beginning of year $ 2,191 $ 173 $ 347 $ 1,098 Capitalization 899 6 56 117 Amortization expense (121) (8) (36) (44) Foreign currency translation (2) (4) 12 (1) Balance, end of period $ 2,967 $ 167 $ 379 $ 1,170 For the nine months ended September 30, 2023: U.S. and Latin America – Traditional Canada – Traditional Europe, Middle East and Africa – Traditional Asia Pacific – Traditional Balance, beginning of year $ 2,087 $ 171 $ 294 $ 1,043 Capitalization 183 7 75 94 Amortization expense (111) (9) (28) (44) Foreign currency translation 1 — (10) (24) Balance, end of period $ 2,160 $ 169 $ 331 $ 1,069 The following tables provide the balances of and changes in deferred policy acquisition costs for the Company’s Financial Solutions business for the nine months ended September 30, 2024 and 2023 (dollars in millions): For the nine months ended September 30, 2024: U.S. and Latin America – Financial Solutions Canada – Financial Solutions Europe, Middle East and Africa – Financial Solutions Asia Pacific – Financial Solutions Balance, beginning of year $ 552 $ — $ — $ 250 Capitalization 1 — — 67 Amortization expense (44) — — (33) Other (14) — — — Foreign currency translation — — — 1 Balance, end of period $ 495 $ — $ — $ 285 For the nine months ended September 30, 2023: U.S. and Latin America – Financial Solutions Canada – Financial Solutions Europe, Middle East and Africa – Financial Solutions Asia Pacific – Financial Solutions Balance, beginning of year $ 341 $ — $ — $ 188 Capitalization — — — 89 Amortization expense (32) — — (24) Foreign currency translation — — — (6) Balance, end of period $ 309 $ — $ — $ 247 The reconciliation of deferred policy acquisition costs to the condensed consolidated balance sheets as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, 2024 2023 Deferred policy acquisition costs included in the rollforwards: Traditional: U.S. and Latin America $ 2,967 $ 2,160 Canada 167 169 Europe, Middle East and Africa 379 331 Asia Pacific 1,170 1,069 Financial Solutions: U.S. and Latin America 495 309 Canada — — Europe, Middle East and Africa — — Asia Pacific 285 247 Other long-duration business: Corporate and Other 14 4 Total deferred policy acquisition costs $ 5,477 $ 4,289

Reinsurance

Reinsurance	9 Months Ended
	Sep. 30, 2024
Retrocession Arrangements And Reinsurance Ceded Receivables [Abstract]
Retrocession Arrangements and Reinsurance Ceded Receivables	REINSURANCE Ceded Reinsurance In the normal course of business, the Company seeks to limit its exposure to loss on any single insured and to recover a portion of the benefits paid by ceding reinsurance to other insurance or reinsurance companies under excess coverage and coinsurance contracts. Claims in excess of this retention amount are retroceded to retrocessionaires; however, the Company remains fully liable to the ceding company for the entire amount of risk it assumes. During the third quarter of 2024, the Company decided to increase its per life retention limit to $8 million to $30 million on January 1, 2025, and began notifying the Company’s retrocessionaires of the increased per life retention limit and the Company’s intention to recapture risk ceded to the Company’s retrocessionaires in the future. The increased retention limit and updated recapture assumption resulted in a future policy benefits remeasurement loss of $136 million recognized in the third quarter of 2024. Retrocession reinsurance treaties do not relieve the Company from its obligations to direct writing companies. Failure of retrocessionaires to honor their obligations could result in losses to the Company. Consequently, allowances would be established for amounts deemed uncollectible. The Company regularly evaluates the financial condition of the insurance companies from which it assumes and to which it cedes reinsurance. At September 30, 2024 and December 31, 2023, no allowances were deemed necessary. Retrocessions are arranged through the Company’s retrocession pools for amounts in excess of the Company’s retention limit. As of September 30, 2024, all rated retrocession pool participants followed by the A.M. Best Company were rated “B++ (Good)” or better. The Company verifies retrocession pool participants’ ratings on a quarterly basis. For a majority of the retrocessionaires that were not rated, security in the form of letters of credit or trust assets have been posted. In addition, the Company performs annual financial reviews of its retrocessionaires to evaluate financial stability and performance. Ruby Reinsurance Company (Ruby Re), a Missouri-domiciled life reinsurance company to reinsure U.S. asset-intensive business was launched in 2023 with the Company as a sponsor. The Company, which is not an investor in Ruby Re, does not consolidate the entity. During the third quarter of 2024, the Company completed a coinsurance funds withheld transaction under which it retroceded $390 million of asset-intensive business to Ruby Re. As of September 30, 2024, the Company has a ceded reinsurance recoverable from Ruby Re of approximately $2.7 billion. Two reinsurance companies, including Ruby Re, account for approximately 77.2% of reinsurance ceded receivables and other as of September 30, 2024. As of September 30, 2024 and December 31, 2023, $4 million and $10 million of claims recoverable were in excess of 90 days past due, respectively. Also included in reinsurance ceded receivables and other is a deposit asset on reinsurance of $2.8 billion and $3.1 billion as of September 30, 2024 and December 31, 2023, respectively. Funds Withheld Certain of the Company’s retrocession agreements, including those with Ruby Re, are on a modco or funds withheld basis. While the economic benefits of the funds withheld assets are passed on to the assuming company, the Company retains legal ownership of the assets within the funds withheld account and established a funds withheld liability. Net investment income related to the funds withheld assets are reported in other reinsurance expense, and net realized gains (losses) related to the assets are reported net of the amount that is passed on to the assuming company. The following assets were held in support of the Company’s funds withheld arrangements and are reported in the line items shown in the condensed consolidated balance sheets as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Fixed maturity securities available-for-sale $ 2,390 $ 2,442 Equity securities 2 2 Mortgage loans 452 451 Funds withheld at interest 1,486 1,545 Real estate joint ventures 48 35 Short-term investments and cash and cash equivalents 58 30 Accrued investment income 32 28 Net other assets — 1 Net assets $ 4,468 $ 4,534 Certain assets are reported at amortized cost while the fair value of those assets is reflected in the funds withheld payable. The Company had a $4,809 million and $4,483 million funds withheld payable as of September 30, 2024 and December 31, 2023, respectively, net of an embedded derivative asset of $51 million and $206 million as of September 30, 2024 and December 31, 2023.

Investments

Investments	9 Months Ended
	Sep. 30, 2024
Investments [Abstract]
Investment	INVESTMENTS Fixed Maturity Securities Available-for-Sale The Company holds various types of fixed maturity securities available-for-sale and classifies them as corporate securities (“Corporate”), Canadian and Canadian provincial government securities (“Canadian government”), Japanese government and agencies (“Japanese government”), asset-backed securities (“ABS”), commercial mortgage-backed securities (“CMBS”), residential mortgage-backed securities (“RMBS”), U.S. government and agencies (“U.S. government”), state and political subdivisions, and other foreign government, supranational and foreign government-sponsored enterprises (“Other foreign government”). ABS, CMBS, and RMBS are collectively “structured securities.” The following tables provide information relating to investments in fixed maturity securities by type as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024: Amortized Cost Allowance for Credit Losses Unrealized Gains Unrealized Losses Estimated Fair Value % of Total Available-for-sale: Corporate $ 53,327 $ 104 $ 1,058 $ 3,194 $ 51,087 65.4 % Canadian government 4,517 — 494 41 4,970 6.4 Japanese government 6,103 — 3 836 5,270 6.7 ABS 5,521 15 44 177 5,373 6.9 CMBS 2,327 1 27 115 2,238 2.9 RMBS 1,374 — 20 76 1,318 1.7 U.S. government 1,897 — 18 212 1,703 2.1 State and political subdivisions 895 — 7 81 821 1.1 Other foreign government 5,645 — 84 360 5,369 6.8 Total fixed maturity securities $ 81,606 $ 120 $ 1,755 $ 5,092 $ 78,149 100.0 % December 31, 2023: Amortized Cost Allowance for Credit Losses Unrealized Gains Unrealized Losses Estimated Fair Value % of Total Available-for-sale: Corporate $ 42,014 $ 62 $ 554 $ 3,751 $ 38,755 64.1 % Canadian government 3,477 — 473 33 3,917 6.5 Japanese government 3,630 — 3 502 3,131 5.2 ABS 4,661 12 19 239 4,429 7.3 CMBS 1,969 1 7 202 1,773 2.9 RMBS 1,173 — 8 102 1,079 1.8 U.S. government 2,725 — 9 214 2,520 4.2 State and political subdivisions 1,236 — 7 129 1,114 1.8 Other foreign government 4,092 — 45 388 3,749 6.2 Total fixed maturity securities $ 64,977 $ 75 $ 1,125 $ 5,560 $ 60,467 100.0 % The Company monitors its concentrations of financial instruments on an ongoing basis and mitigates credit risk by maintaining a diversified investment portfolio that limits exposure to any one issuer. The Company’s exposure to concentrations of credit risk from single issuers, including certain agencies, greater than 10% of the Company’s equity are disclosed below, as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Amortized Estimated Amortized Estimated Fixed maturity securities guaranteed or issued by: Japanese government $ 6,103 $ 5,270 $ 3,630 $ 3,131 U.S. government 1,897 1,703 2,725 2,520 Canadian province of Quebec 1,591 1,843 1,467 1,748 Canadian province of Ontario 1,180 1,291 1,019 1,125 The amortized cost and estimated fair value of fixed maturity securities classified as available-for-sale as of September 30, 2024, are shown by contractual maturity in the table below (dollars in millions). Actual maturities can differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Structured securities are shown separately in the table below, as they are not due at a single maturity date. Amortized Cost Estimated Fair Value Available-for-sale: Due in one year or less $ 1,699 $ 1,701 Due after one year through five years 11,881 11,829 Due after five years through ten years 13,649 13,480 Due after ten years 45,155 42,210 Structured securities 9,222 8,929 Total $ 81,606 $ 78,149 Corporate Fixed Maturity Securities The tables below show the major sectors of the Company’s corporate fixed maturity holdings as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024: Amortized Cost Estimated Fair Value % of Total Finance $ 17,482 $ 16,641 32.6 % Industrial 27,697 26,682 52.2 Utility 8,148 7,764 15.2 Total $ 53,327 $ 51,087 100.0 % December 31, 2023: Amortized Cost Estimated Fair Value % of Total Finance $ 15,052 $ 13,789 35.6 % Industrial 21,413 19,935 51.4 Utility 5,549 5,031 13.0 Total $ 42,014 $ 38,755 100.0 % Allowance for Credit Losses and Impairments – Fixed Maturity Securities Available-for-Sale As discussed in Note 2 – “Significant Accounting Policies and Pronouncements” of the Company’s 2023 Annual Report, allowances for credit losses on fixed maturity securities are recognized in investment related gains (losses), net. The Company estimates the amount of the credit loss component of a fixed maturity security impairment as the difference between amortized cost and the present value of the expected cash flows of the security. Any remaining difference between the fair value and amortized cost is recognized in OCI. The following tables present the rollforward of the allowance for credit losses in fixed maturity securities by type for the three and nine months ended September 30, 2024 and 2023 (dollars in millions) : Corporate ABS CMBS Total For the three months ended September 30, 2024: Balance, beginning of period $ 95 $ 15 $ 1 $ 111 Credit losses recognized on securities for which credit losses were not previously recorded 10 — — 10 Reductions for securities sold during the period — — — — Additional increases or decreases for credit losses on securities that had an allowance recorded in a previous period (1) — — (1) Write-offs charged against the allowance — — — — Balance, end of period $ 104 $ 15 $ 1 $ 120 For the three months ended September 30, 2023: Balance, beginning of period $ 62 $ 12 $ 1 $ 75 Additional increases or decreases for credit losses on securities that had an allowance recorded in a previous period (1) — — (1) Write-offs charged against the allowance (6) — — (6) Balance, end of period $ 55 $ 12 $ 1 $ 68 Corporate ABS CMBS Total For the nine months ended September 30, 2024: Balance, beginning of period $ 62 $ 12 $ 1 $ 75 Credit losses recognized on securities for which credit losses were not previously recorded 42 — — 42 Reductions for securities sold during the period (9) — — (9) Additional increases or decreases for credit losses on securities that had an allowance recorded in a previous period 8 3 — 11 Write-offs charged against the allowance 1 — — 1 Balance, end of period $ 104 $ 15 $ 1 $ 120 For the nine months ended September 30, 2023: Balance, beginning of period $ 27 $ 10 $ — $ 37 Credit losses recognized on securities for which credit losses were not previously recorded 44 — 1 45 Reductions for securities sold during the period (10) — — (10) Additional increases or decreases for credit losses on securities that had an allowance recorded in a previous period — 2 — 2 Write-offs charged against the allowance (6) — — (6) Balance, end of period $ 55 $ 12 $ 1 $ 68 Unrealized Losses for Fixed Maturity Securities Available-for-Sale The Company’s determination of whether a decline in value necessitates the recording of an allowance for credit losses includes an analysis of whether the issuer is current on its contractual payments, evaluating whether it is probable that the Company will be able to collect all amounts due according to the contractual terms of the security and analyzing the overall ability of the Company to recover the amortized cost of the investment. The following tables present the estimated fair value and gross unrealized losses for the 5,308 and 5,788 fixed maturity securities for which both the estimated fair value had declined and remained below amortized cost and an allowance for credit loss has not been recorded as of September 30, 2024 and December 31, 2023 (dollars in millions). These investments are presented by class and grade of security, as well as the length of time the related fair value has continuously remained below amortized cost. Less than 12 months 12 months or greater Total September 30, 2024: Estimated Fair Value Gross Unrealized Losses Estimated Fair Value Gross Unrealized Losses Estimated Fair Value Gross Unrealized Losses Investment grade securities: Corporate $ 3,871 $ 71 $ 21,471 $ 3,036 $ 25,342 $ 3,107 Canadian government 159 6 432 35 591 41 Japanese government 2,408 159 2,489 677 4,897 836 ABS 1,054 22 2,039 148 3,093 170 CMBS 188 12 1,156 96 1,344 108 RMBS — — 636 76 636 76 U.S. government 264 2 711 210 975 212 State and political subdivisions — — 532 81 532 81 Other foreign government 770 10 2,009 302 2,779 312 Total investment grade securities 8,714 282 31,475 4,661 40,189 4,943 Below investment grade securities: Corporate 392 14 413 62 805 76 ABS 13 2 44 5 57 7 CMBS — — — — — — Other foreign government — — 190 48 190 48 Total below investment grade securities 405 16 647 115 1,052 131 Total fixed maturity securities $ 9,119 $ 298 $ 32,122 $ 4,776 $ 41,241 $ 5,074 Less than 12 months 12 months or greater Total December 31, 2023: Estimated Fair Value Gross Unrealized Losses Estimated Fair Value Gross Unrealized Losses Estimated Fair Value Gross Unrealized Losses Investment grade securities: Corporate $ 2,134 $ 70 $ 24,207 $ 3,524 $ 26,341 $ 3,594 Canadian government — — 459 33 459 33 Japanese government 876 50 2,193 452 3,069 502 ABS 336 5 3,025 223 3,361 228 CMBS 160 5 1,328 190 1,488 195 RMBS 115 3 681 99 796 102 U.S. government 614 10 717 204 1,331 214 State and political subdivisions 73 1 864 128 937 129 Other foreign government 254 3 2,290 333 2,544 336 Total investment grade securities 4,562 147 35,764 5,186 40,326 5,333 Below investment grade securities: Corporate 295 36 649 121 944 157 ABS — — 68 10 68 10 CMBS — — 4 1 4 1 Other foreign government — — 193 52 193 52 Total below investment grade securities 295 36 914 184 1,209 220 Total fixed maturity securities $ 4,857 $ 183 $ 36,678 $ 5,370 $ 41,535 $ 5,553 The Company did not intend to sell, and more likely than not would not be required to sell, the securities outlined in the tables above, as of the dates indicated. However, unforeseen facts and circumstances may cause the Company to sell fixed maturity securities in the ordinary course of managing its portfolio to meet certain diversification, credit quality and liquidity guidelines. Changes in unrealized losses are primarily driven by changes in risk-free interest rates and credit spreads. Net Investment Income Major categories of net investment income consist of the following (dollars in millions): Three months ended September 30, Nine months ended September 30, 2024 2023 2024 2023 Fixed maturity securities available-for-sale $ 933 $ 707 $ 2,574 $ 2,035 Equity securities 2 2 5 5 Mortgage loans 103 84 290 238 Policy loans 14 13 42 39 Funds withheld at interest 88 88 253 240 Limited partnerships and real estate joint ventures 46 41 74 114 Short-term investments and cash and cash equivalents 48 28 126 71 Other invested assets (6) 2 (5) 14 Investment income 1,228 965 3,359 2,756 Investment expense (40) (43) (128) (121) Net investment income $ 1,188 $ 922 $ 3,231 $ 2,635 Investment Related Gains (Losses), Net Investment related gains (losses), net consist of the following (dollars in millions): Three months ended September 30, Nine months ended September 30, 2024 2023 2024 2023 Fixed maturity securities available-for-sale: Change in allowance for credit losses $ (9) $ 7 $ (45) $ (31) Impairments on fixed maturity securities — — (1) (1) Realized gains on investment activity 72 12 172 54 Realized losses on investment activity (113) (61) (477) (173) Net gains (losses) on equity securities 6 (2) 5 (4) Change in mortgage loan allowance for credit losses (12) (17) (20) (23) Limited partnerships and real estate joint venture impairment losses — — (8) — Change in fair value of certain limited partnership investments 17 25 18 32 Net gains (losses) on freestanding derivatives 87 (98) (131) (222) Net gains (losses) on embedded derivatives (112) 1 (9) 18 Other, net (14) 7 (2) 24 Total investment related gains (losses), net $ (78) $ (126) $ (498) $ (326) Collateral Arrangements The Company enters into various collateral arrangements with counterparties that require both the pledging and acceptance of invested assets as collateral. Pledged invested assets are included in the condensed consolidated balance sheets. Invested assets received as collateral are held in separate custodial accounts and are not recorded on the Company’s condensed consolidated balance sheets. Subject to certain constraints, the Company is permitted by contract to sell or repledge collateral it receives; however, as of September 30, 2024 and December 31, 2023, none of the collateral received had been sold or repledged. The Company also holds invested assets on deposit to meet regulatory requirements and holds assets in trust to satisfy collateral requirements under derivative transactions and certain third-party reinsurance treaties. The following table includes invested assets on deposit, invested assets pledged and received as collateral, assets in trust held to satisfy collateral requirements and FHLB common stock restricted as to sale as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Amortized Estimated Amortized Estimated Invested assets on deposit (regulatory deposits) $ 12 $ 10 $ 12 $ 9 Invested assets pledged as collateral 891 814 572 517 Invested assets received as collateral n/a 2,419 n/a 1,827 Assets in trust held to satisfy collateral requirements 47,251 45,545 32,758 30,359 FHLB common stock restricted as to sale 72 72 63 63 Securities Lending and Repurchase/Reverse Repurchase Agreements The following table provides the estimated fair value of securities relating to securities lending and repurchase/reverse repurchase agreements as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Securities Loaned, Pledged, or Sold (1) Securities Borrowed or Collateral Received from Counterparties (2) Cash Collateral Received from Counterparties (3) Securities Loaned, Pledged, or Sold (1) Securities Borrowed or Collateral Received from Counterparties (2) Cash Collateral Received from Counterparties (3) Securities lending transactions $ 782 $ 1,042 $ — $ 732 $ 1,013 $ — Repurchase/reverse repurchase transactions 1,923 930 1,044 1,333 517 820 (1) Securities loaned or pledged through securities lending transactions or sold to counterparties through repurchase transactions are included within fixed maturity securities. Collateral associated with certain securities lending transactions is not included within this table as the collateral pledged to the counterparty is the right to reinsurance treaty cash flows. Certain securities lending transactions do not require collateral. (2) Securities borrowed or received as collateral through securities lending transactions or purchased from counterparties through reverse repurchase transactions are not reflected on the condensed consolidated balance sheets. (3) A payable for the cash received by the Company is included within other liabilities. The following tables present the estimated fair value of securities by the remaining contractual maturity of the Company’s securities lending and repurchase agreements as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Remaining Contractual Maturity of the Agreements Remaining Contractual Maturity of the Agreements Overnight and Continuous Up to 30 Days 30 – 90 Days Greater than 90 Days Total Overnight and Continuous Up to 30 Days 30 – 90 Days Greater than 90 Days Total Securities lending transactions: Corporate $ — $ 77 $ 142 $ 199 $ 418 $ — $ — $ 94 $ 41 $ 135 Japanese government — — — 251 251 — 88 — 480 568 ABS — — 12 3 15 — — — — — CMBS — — 48 — 48 — — — — — RMBS — — 14 — 14 — — — — — U.S. government — — — 9 9 — — — — — State and political subdivisions — — — 6 6 — — — 11 11 Other foreign government — — 11 10 21 — — 13 5 18 Total — 77 227 478 782 — 88 107 537 732 Repurchase/reverse repurchase transactions: Corporate — — — 554 554 — — — 553 553 Japanese government — — — 393 393 — — — 158 158 ABS — — — 299 299 — — — 229 229 CMBS — — — 254 254 — — — 221 221 RMBS — — — 52 52 — — — 52 52 U.S. government — — — 268 268 — — — 14 14 Other foreign government — — — 103 103 — — — 106 106 Total — — — 1,923 1,923 — — — 1,333 1,333 Total transactions $ — $ 77 $ 227 $ 2,401 $ 2,705 $ — $ 88 $ 107 $ 1,870 $ 2,065 Mortgage Loans As of September 30, 2024, mortgage loans were geographically dispersed throughout the U.S. with the largest concentrations in California (12.4%), Texas (9.7%) and Washington (6.3%), in addition to loans secured by properties in Canada (7.6%) and the United Kingdom (2.6%). The recorded investment in mortgage loans presented below is gross of unamortized deferred loan origination fees and expenses and allowance for credit losses. The following table presents the distribution of the Company’s recorded investment in mortgage loans by property type as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Property type: Carrying Value % of Total Carrying Value % of Total Office $ 1,709 20.1 % $ 1,700 22.8 % Retail 2,748 32.4 2,437 32.7 Industrial 2,503 29.4 1,947 26.1 Apartment 1,076 12.7 913 12.2 Hotel 417 4.9 413 5.5 Other commercial 40 0.5 49 0.7 Recorded investment 8,493 100.0 % 7,459 100.0 % Unamortized balance of loan origination fees and expenses (18) (15) Allowance for credit losses (87) (67) Total mortgage loans $ 8,388 $ 7,377 The following table presents the maturities of the Company’s recorded investment in mortgage loans as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Recorded % of Total Recorded % of Total Due within five years $ 3,944 46.4 % $ 3,228 43.3 % Due after five years through ten years 3,643 42.9 3,334 44.7 Due after ten years 906 10.7 897 12.0 Total $ 8,493 100.0 % $ 7,459 100.0 % The following tables set forth certain key credit quality indicators of the Company’s recorded investment in mortgage loans as of September 30, 2024 and December 31, 2023 (dollars in millions): Recorded Investment Debt Service Ratios Construction loans >1.20x 1.00x – 1.20x <1.00x Total % of Total September 30, 2024: Loan-to-Value Ratio 0% – 59.99% $ 4,327 $ 202 $ 83 $ 13 $ 4,625 54.5 % 60% – 69.99% 2,148 237 63 45 2,493 29.4 70% – 79.99% 737 102 36 — 875 10.2 80% or greater 339 55 106 — 500 5.9 Total $ 7,551 $ 596 $ 288 $ 58 $ 8,493 100.0 % Recorded Investment Debt Service Ratios Construction loans >1.20x 1.00x – 1.20x <1.00x Total % of Total December 31, 2023: Loan-to-Value Ratio 0% – 59.99% $ 3,672 $ 272 $ 27 $ 46 $ 4,017 53.9 % 60% – 69.99% 1,947 154 44 — 2,145 28.8 70% – 79.99% 843 52 34 — 929 12.4 80% or greater 198 70 100 — 368 4.9 Total $ 6,660 $ 548 $ 205 $ 46 $ 7,459 100.0 % The following table sets forth credit quality grades by year of origination of the Company’s recorded investment in mortgage loans as of September 30, 2024 and December 31, 2023 (dollars in millions): Recorded Investment Year of Origination 2024 2023 2022 2021 2020 Prior Total September 30, 2024: Internal credit quality grade: High investment grade $ 352 $ 473 $ 641 $ 613 $ 268 $ 2,054 $ 4,401 Investment grade 730 752 728 442 239 803 3,694 Average — 12 — — 18 233 263 Watch list — — — — — 112 112 In or near default — — — — — 23 23 Total $ 1,082 $ 1,237 $ 1,369 $ 1,055 $ 525 $ 3,225 $ 8,493 Recorded Investment Year of Origination 2023 2022 2021 2020 2019 Prior Total December 31, 2023: Internal credit quality grade: High investment grade $ 475 $ 635 $ 573 $ 304 $ 491 $ 1,734 $ 4,212 Investment grade 754 668 384 245 313 564 2,928 Average 12 — — 18 63 203 296 Watch list — — — — — 16 16 In or near default — — — — — 7 7 Total $ 1,241 $ 1,303 $ 957 $ 567 $ 867 $ 2,524 $ 7,459 The following table presents the current and past due composition of the Company’s recorded investment in mortgage loans as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Current $ 8,441 $ 7,431 31 – 60 days past due 23 28 61 – 90 days past due 6 — Greater than 90 days past due 23 — Total $ 8,493 $ 7,459 The following table presents information regarding the Company’s allowance for credit losses for mortgage loans for the three and nine months ended September 30, 2024 and 2023 (dollars in millions): Three months ended September 30, Nine months ended September 30, 2024 2023 2024 2023 Balance, beginning of period $ 75 $ 57 $ 67 $ 51 Change in allowance for credit losses 12 17 20 23 Balance, end of period $ 87 $ 74 $ 87 $ 74 During the nine months ended September 30, 2024, the Company modified eight mortgage loans for borrowers experiencing financial difficulty providing interest only payments and maturity extensions. The total recorded investment before allowance for credit losses for the modified loans was $90 million as of September 30, 2024. During the nine months ended September 30, 2023, the Company modified six mortgage loans providing interest only payments and maturity extensions. The total recorded investment before allowance for credit losses for modified loans was $68 million as of September 30, 2023. During the nine months ended September 30, 2024, the Company converted three mortgage loans totaling $23 million to owned properties through deed in lieu of foreclosure. Additionally, the Company reclassified one property in the amount of $21 million, that was previously held for sale, to held for use. During the nine months ended September 30, 2023, the Company converted two mortgage loans in the total amount of $36 million to owned properties as a result of foreclosures. The Company had one mortgage loan in the amount of $23 million and two mortgage loans in the amount of $41 million that were on nonaccrual status as of September 30, 2024 and 2023, respectively. The Company did not acquire any impaired mortgage loans during the nine months ended September 30, 2024 and 2023. Policy Loans The majority of policy loans are associated with one client. These policy loans present no credit risk as the amount of the loan cannot exceed the obligation due to the ceding company upon the death of the insured or surrender of the underlying policy. The provisions of the treaties in force and the underlying policies determine the policy loan interest rates. The Company earns a spread between the interest rate earned on policy loans and the interest rate credited to corresponding liabilities. Funds Withheld at Interest As of September 30, 2024, $3.1 billion of the funds withheld at interest balance is primarily associated with two clients. For reinsurance agreements written on a modco basis and certain agreements written on a coinsurance funds withheld basis, assets equal to the net statutory reserves are withheld and legally owned and managed by the ceding company and are reflected as funds withheld at interest. In the event of a ceding company’s insolvency, the Company would need to assert a claim on the assets supporting its reserve liabilities. However, the risk of loss to the Company is mitigated by its ability to offset amounts it owes the ceding company for claims or allowances against amounts owed to the Company from the ceding company. Limited Partnerships and Real Estate Joint Ventures The carrying values of limited partnerships and real estate joint ventures as of September 30, 2024 and December 31, 2023 are as follows (dollars in millions): September 30, 2024 December 31, 2023 Limited partnerships – equity method $ 1,029 $ 925 Limited partnerships – fair value 920 856 Limited partnerships – cost method 55 71 Real estate joint ventures 968 783 Total limited partnerships and real estate joint ventures $ 2,972 $ 2,635 Other Invested Assets Other invested assets include lifetime mortgages, derivative contracts and FHLB common stock. Other invested assets also includes real estate held for investment, which is included in “Other” in the table below. As of September 30, 2024 and December 31, 2023, the allowance for credit losses for lifetime mortgages was not material. The carrying values of other invested assets as of September 30, 2024 and December 31, 2023 are as follows (dollars in millions): September 30, 2024 December 31, 2023 Lifetime mortgages $ 1,026 $ 944 Derivatives 199 97 FHLB common stock 72 63 Other 64 67 Total other invested assets $ 1,361 $ 1,171

Derivative Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	DERIVATIVE INSTRUMENTS See Note 2 – “Significant Accounting Policies and Pronouncements” of the Company’s 2023 Annual Report for a detailed discussion of the accounting treatment for derivative instruments, including embedded derivatives. See Note 13 – “Fair Value of Assets and Liabilities” of the Company’s 2023 Annual Report for additional disclosures related to the fair value hierarchy for derivative instruments, including embedded derivatives. Commonly used derivative instruments include, but are not necessarily limited to: interest rate swaps, interest rate options, total return swaps, interest rate futures, foreign currency swaps, foreign currency forwards, foreign currency options, equity options, equity futures, credit default swaps, consumer price index (“CPI”) swaps, forward bond purchase commitments, synthetic guaranteed investment contracts (“GICs”), other derivatives and embedded derivatives. For detailed information on these derivative instruments and the related strategies, see Note 12 – “Derivative Instruments” of the Company’s 2023 Annual Report. Summary of Derivative Positions Freestanding derivatives are included in other invested assets or other liabilities, at fair value. Embedded derivative assets and liabilities on modco or funds withheld arrangements are included on the condensed consolidated balance sheets with the host contract in funds withheld at interest or funds withheld payable, at fair value. Embedded derivative liabilities on indexed annuity products are included on the condensed consolidated balance sheets with the host contract in interest-sensitive contract liabilities, at fair value. The following table presents the notional amounts and gross fair value of derivative instruments prior to taking into account the netting effects of master netting agreements as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Primary Underlying Risk Notional Carrying Value / Fair Value Notional Carrying Value / Fair Value Amount Assets Liabilities Amount Assets Liabilities Derivatives not designated as hedging instruments: Interest rate swaps Interest rate $ 1,796 $ 6 $ 4 $ 1,609 $ 4 $ 3 Interest rate options Interest rate 2,266 — — 5,555 7 — Total return swaps Interest rate 1,075 21 17 500 24 — Interest rate futures Interest rate — — — 97 — — Foreign currency swaps Foreign currency 150 35 — 150 27 — Foreign currency forwards Foreign currency 1,142 55 1 809 36 — Foreign currency options Foreign currency 350 2 — — — — Equity options Equity 141 2 — 253 8 — Equity futures Equity 225 — — 255 — — Credit default swaps Credit 2,726 5 3 1,475 5 1 CPI swaps CPI 445 7 3 468 11 3 Synthetic GICs Interest rate 15,395 — — 16,135 — — Embedded derivatives in: Modco or funds withheld arrangements — 274 454 — 356 527 Indexed annuity products — — 385 — — 415 Total non-designated derivatives 25,711 407 867 27,306 478 949 Derivatives designated as hedging instruments: Interest rate swaps Interest rate 3,269 89 78 1,770 9 86 Forward bond purchase commitments Interest rate 1,673 7 101 1,076 11 80 Foreign currency swaps Foreign currency 2,026 37 71 809 7 64 Foreign currency forwards Foreign currency 1,315 4 9 1,143 5 17 Total hedging derivatives 8,283 137 259 4,798 32 247 Total derivatives $ 33,994 $ 544 $ 1,126 $ 32,104 $ 510 $ 1,196 Fair Value Hedges The Company designates and reports the following as fair value hedges when they meet the requirements of the general accounting principles for Derivatives and Hedging: (i) certain foreign currency swaps to hedge the foreign currency fair value exposure of foreign currency denominated assets; and (ii) interest rate swaps to convert fixed rate liabilities to floating rate liabilities. The gain or loss on the hedged item attributable to a change in interest rates or foreign currency and the offsetting gain or loss on the related interest rate or foreign currency swaps for the three and nine months ended September 30, 2024 and 2023 are as follows (dollars in millions): Derivative Type Hedged Item Investment Related Claims and Other Policy Benefits Interest Credited Derivatives Hedged Items Derivatives Hedged Items Derivatives Hedged Items For the three months ended September 30, 2024: Foreign currency swaps Foreign-denominated fixed maturity securities $ — $ — $ — $ — $ — $ — Interest rate swaps Future policy benefits — — 31 (34) — — Interest rate swaps Interest-sensitive contract liabilities — — — — 42 (45) For the three months ended September 30, 2023: Foreign currency swaps Foreign-denominated fixed maturity securities (4) 3 — — — — Interest rate swaps Interest-sensitive contract liabilities — — — — (2) 2 For the nine months ended September 30, 2024: Foreign currency swaps Foreign-denominated fixed maturity securities 2 (4) — — — — Interest rate swaps Future policy benefits — — 27 (32) — — Interest rate swaps Interest-sensitive contract liabilities — — — — 37 (43) For the nine months ended September 30, 2023: Foreign currency swaps Foreign-denominated fixed maturity securities (7) 5 — — — — Interest rate swaps Interest-sensitive contract liabilities — — — — (2) 2 The following table presents the balance sheet classification, carrying amount and cumulative fair value hedging adjustments for items designated and qualifying as hedged items in fair value hedges (dollars in millions): Hedged Item Carrying Amount of Cumulative Fair Value Hedging Adjustments Included in the Carrying Amount of Hedged Assets / (Liabilities) Discontinued Fair Value Hedge Adjustments Included in the Cumulative Adjustments September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 Foreign-denominated fixed maturity securities $ — $ 89 n/a n/a n/a n/a Future policy benefits (672) — (32) — (25) — Interest-sensitive contract liabilities (970) (25) (43) (1) (23) 1 Cash Flow Hedges Certain derivative instruments are designated as cash flow hedges when they meet the requirements of the general accounting principles for Derivatives and Hedging . The Company designates and accounts for the following as cash flow hedges: (i) certain interest rate swaps, in which the cash flows of assets and liabilities are variable based on a benchmark rate; (ii) certain interest rate swaps, in which floating rate assets are converted to fixed rate assets; (iii) forward bond purchase commitments; and (iv) certain foreign currency swaps, in which the cash flows of assets are denominated in different currencies, commonly referred to as cross-currency swaps. The following table presents the cash flow hedge components of AOCI, before income taxes, and where the gain or loss related to cash flow hedges is recognized on the condensed consolidated statements of income for the three and nine months ended September 30, 2024 and 2023 (dollars in millions): Three months ended September 30, 2024 2023 Balance, beginning of period $ (413) $ (228) Gains (losses), net deferred in other comprehensive income (loss) 167 (128) Amounts reclassified to net investment income 20 8 Amounts reclassified to interest expense (3) (3) Balance, end of period $ (229) $ (351) Nine months ended September 30, 2024 2023 Balance, beginning of period $ (218) $ (205) Gains (losses), net deferred in other comprehensive income (loss) (44) (154) Amounts reclassified to net investment income 42 15 Amounts reclassified to interest expense (9) (7) Balance, end of period $ (229) $ (351) As of September 30, 2024, approximately $28 million of before-tax deferred net losses on derivative instruments recorded in AOCI are expected to be reclassified to net investment income during the next twelve months. For the same time period, approximately $6 million of before-tax deferred net gains on derivative instruments recorded in AOCI are expected to be reclassified to interest expense during the next twelve months. The following table presents the effect of derivatives in cash flow hedging relationships on the condensed consolidated statements of income for the three and nine months ended September 30, 2024 and 2023 (dollars in millions): Derivative Type Gains (Losses) Gains (Losses) Reclassified into Income from Net Investment Income Interest Expense For the three months ended September 30, 2024: Interest rate $ 57 $ (3) $ 3 Foreign currency 110 (17) — Total $ 167 $ (20) $ 3 For the three months ended September 30, 2023: Interest rate $ (113) $ (4) $ 3 Foreign currency (15) (4) — Total $ (128) $ (8) $ 3 For the nine months ended September 30, 2024: Interest rate $ (33) $ (9) $ 9 Foreign currency (11) (33) — Total $ (44) $ (42) $ 9 For the nine months ended September 30, 2023: Interest rate $ (107) $ (4) $ 7 Foreign currency (47) (11) — Total $ (154) $ (15) $ 7 For the three and nine months ended September 30, 2024 and 2023, there were no material amounts reclassified into earnings relating to instances in which the Company discontinued cash flow hedge accounting because the forecasted transaction did not occur by the anticipated date or within the additional time period permitted by the authoritative guidance for the accounting for derivatives and hedging. Hedges of Net Investments in Foreign Operations The Company uses foreign currency swaps and foreign currency forwards to hedge a portion of its net investment in certain foreign operations against adverse movements in exchange rates. The following table illustrates the Company’s net investments in foreign operations (“NIFO”) hedges and the gains (losses) deferred in OCI for the three and nine months ended September 30, 2024 and 2023 (dollars in millions): Derivative Gains (Losses) Deferred in OCI Three months ended September 30, Nine months ended September 30, Derivative Type 2024 2023 2024 2023 Foreign currency swaps $ — $ — $ — $ — Foreign currency forwards (12) 29 24 8 Total $ (12) $ 29 $ 24 $ 8 The cumulative foreign currency translation gain recorded in AOCI related to these hedges was $207 million and $183 million as of September 30, 2024 and December 31, 2023, respectively. If a hedged foreign operation was sold or substantially liquidated, the amounts in AOCI would be reclassified to the condensed consolidated statements of income. A pro rata portion would be reclassified upon partial sale of a hedged foreign operation. There were no sales or substantial liquidations of net investments in foreign operations that would have required the reclassification of gains or losses from AOCI into investment income during the periods presented. Non-qualifying Derivatives and Derivatives for Purposes Other Than Hedging The Company uses various other derivative instruments for risk management purposes that either do not qualify or have not been elected for hedge accounting treatment. The gain or loss related to the change in fair value for these derivative instruments is recognized in investment related gains (losses), net, except where otherwise noted. A summary of the effect of non-qualifying derivatives, including embedded derivatives, on the Company’s condensed consolidated statements of income for the three and nine months ended September 30, 2024 and 2023 is as follows (dollars in millions): Gains (Losses) for the three months ended Type of Non-qualifying Derivative Income Statement 2024 2023 Interest rate swaps Investment related gains (losses), net $ 13 $ (64) Interest rate options Investment related gains (losses), net (3) 16 Total return swaps Investment related gains (losses), net 7 (8) Interest rate futures Investment related gains (losses), net — — Foreign currency swaps Investment related gains (losses), net (7) 8 Foreign currency forwards Investment related gains (losses), net 77 (37) Foreign currency options Investment related gains (losses), net 2 — Equity options Investment related gains (losses), net 1 3 Equity futures Investment related gains (losses), net (12) 11 Credit default swaps Investment related gains (losses), net 10 (26) CPI swaps Investment related gains (losses), net (1) — Subtotal 87 (97) Embedded derivatives in: Modco or funds withheld arrangements Investment related gains (losses), net (112) 1 Indexed annuity products Interest credited (15) 3 Total non-qualifying derivatives $ (40) $ (93) Gains (Losses) for the nine months ended Type of Non-qualifying Derivative Income Statement 2024 2023 Interest rate swaps Investment related gains (losses), net $ (31) $ (74) Interest rate options Investment related gains (losses), net (6) (10) Total return swaps Investment related gains (losses), net — — Interest rate futures Investment related gains (losses), net 2 2 Foreign currency swaps Investment related gains (losses), net 15 20 Foreign currency forwards Investment related gains (losses), net (85) (130) Foreign currency options Investment related gains (losses), net (1) — Equity options Investment related gains (losses), net (4) (22) Equity futures Investment related gains (losses), net (31) (8) Credit default swaps Investment related gains (losses), net 14 (5) CPI swaps Investment related gains (losses), net (2) 7 Subtotal (129) (220) Embedded derivatives in: Modco or funds withheld arrangements Investment related gains (losses), net (9) 18 Indexed annuity products Interest credited (27) 14 Total non-qualifying derivatives $ (165) $ (188) Credit Derivatives The following table presents the estimated fair value, maximum amount of future payments and weighted average years to maturity of credit default swaps sold by the Company at September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Rating Agency Designation of Referenced Credit Obligations (1) Estimated Fair Maximum Amount of Future Payments under Credit Default Swaps (2) Weighted Average Years to Maturity (3) Estimated Fair Maximum Amount of Future Payments under Credit Default Swaps (2) Weighted Average Years to Maturity (3) AAA/AA/A Single name credit default swaps $ (1) $ 410 17.8 $ 2 $ 420 18.1 BBB Single name credit default swaps 3 145 2.3 4 165 2.8 Credit default swaps referencing indices — 2,156 4.9 (1) 880 5.0 Subtotal 3 2,301 4.7 3 1,045 4.7 BB Single name credit default swaps — 5 1.7 (1) 10 2.2 B Single name credit default swaps — 10 1.5 — — 0.0 Total $ 2 $ 2,726 6.7 $ 4 $ 1,475 8.5 (1) The rating agency designations are based on ratings from Standard and Poor’s (“S&P”). (2) Assumes the value of the referenced credit obligations is zero. (3) The weighted average years to maturity of the credit default swaps is calculated based on weighted average notional amounts. Netting Arrangements and Credit Risk Certain of the Company’s freestanding derivatives are subject to enforceable master netting arrangements and reported as a net asset or liability in the condensed consolidated balance sheets. The Company nets all derivatives that are subject to such arrangements. The Company has elected to include all freestanding derivatives in the table below, irrespective of whether they are subject to an enforceable master netting arrangement or a similar agreement. See Note 10 – “Investments” for information regarding the Company’s securities borrowing, lending and repurchase/reverse repurchase agreements. The following table provides information relating to the netting of the Company’s derivative instruments as of September 30, 2024 and December 31, 2023 (dollars in millions): Gross Amounts Gross Amounts Net Amounts Financial Instruments / Collateral (1) Net Amount September 30, 2024: Derivative assets $ 270 $ (71) $ 199 $ (199) $ — Derivative liabilities 287 (71) 216 (216) — December 31, 2023: Derivative assets 154 (57) 97 (97) — Derivative liabilities 254 (57) 197 (197) — (1) Includes initial margin posted to a central clearing partner for financial instruments and excludes the excess of collateral received/pledged from/to the counterparty. The Company may be exposed to credit-related losses in the event of non-performance by counterparties to derivative financial instruments. Generally, the credit exposure of the Company’s derivative contracts is limited to the fair value and accrued interest of non-collateralized derivative contracts in an asset position at the reporting date. As of September 30, 2024, the Company had credit exposure of $16 million. Derivatives may be exchange-traded or they may be privately negotiated contracts, which are referred to as over-the-counter (“OTC”) derivatives. Certain of the Company’s OTC derivatives are cleared and settled through central clearing counterparties (“OTC cleared”) and others are bilateral contracts between two counterparties. Additionally, the Company is required to pledge initial margin for certain OTC-bilateral derivative transactions. The Company manages its credit risk related to OTC derivatives by entering into transactions with creditworthy counterparties, maintaining collateral arrangements and through the use of master netting agreements that provide for a single net payment to be made by one counterparty to another at each due date and upon termination. The Company is only exposed to the default of the central clearing counterparties for OTC cleared derivatives, and these transactions require initial and daily variation margin collateral postings. Exchange-traded derivatives are settled on a daily basis, thereby reducing the credit risk exposure in the event of non-performance by counterparties to such financial instruments.

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Disclosures	FAIR VALUE OF ASSETS AND LIABILITIES Fair Value Measurement General accounting principles for Fair Value Measurements and Disclosures define fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. These principles also establish a three-level fair value hierarchy that requires an entity to maximize the use of observable inputs and to minimize the use of unobservable inputs when measuring fair value: Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities. Active markets are defined through various characteristics for the measured asset/liability, such as having many transactions and narrow bid/ask spreads. Level 2 – Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or market standard valuation techniques and assumptions that use significant inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 – Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the related assets or liabilities and include those whose value is determined using market standard valuation techniques described above. Prices are determined using valuation methodologies such as discounted cash flow models and other similar techniques that require management’s judgment or estimation in developing inputs that are consistent with those other market participants would use when pricing similar assets and liabilities. For a discussion of the Company’s valuation methodologies for assets and liabilities measured at fair value and the fair value hierarchy, see Note 13 – “Fair Value of Assets and Liabilities” in the Notes to Consolidated Financial Statements included in the Company’s 2023 Annual Report. See Note 7 – “Market Risk Benefits” for information about fair value measurement of market risk benefits. Assets and Liabilities by Hierarchy Level Assets and liabilities measured at fair value on a recurring basis as of September 30, 2024 and December 31, 2023 are summarized below (dollars in millions): September 30, 2024: Fair Value Measurements Using: Total Level 1 Level 2 Level 3 Assets: (1) Fixed maturity securities available-for-sale: Corporate $ 51,087 $ — $ 44,944 $ 6,143 Canadian government 4,970 — 4,970 — Japanese government 5,270 — 5,270 — ABS 5,373 — 3,851 1,522 CMBS 2,238 — 2,204 34 RMBS 1,318 — 1,318 — U.S. government 1,703 1,608 89 6 State and political subdivisions 821 — 821 — Other foreign government 5,369 — 5,335 34 Total fixed maturity securities available-for-sale 78,149 1,608 68,802 7,739 Equity securities 155 73 — 82 Funds withheld at interest – embedded derivatives (231) — — (231) Funds withheld at interest 60 — — 60 Cash equivalents 3,530 3,530 — — Short-term investments 345 160 174 11 Other invested assets: Derivatives 199 — 199 — Other 19 — 19 — Total other invested assets 218 — 218 — Total $ 82,226 $ 5,371 $ 69,194 $ 7,661 Liabilities: Interest-sensitive contract liabilities – embedded derivatives $ 385 $ — $ — $ 385 Funds withheld at interest – embedded derivatives (51) — — (51) Derivatives – other liabilities 216 — 216 — Total $ 550 $ — $ 216 $ 334 (1) Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of September 30, 2024, the fair value of such investments was $921 million. December 31, 2023: Fair Value Measurements Using: Total Level 1 Level 2 Level 3 Assets: (1) Fixed maturity securities available-for-sale: Corporate $ 38,755 $ — $ 33,822 $ 4,933 Canadian government 3,917 — 3,917 — Japanese government 3,131 — 3,131 — ABS 4,429 — 3,064 1,365 CMBS 1,773 — 1,714 59 RMBS 1,079 — 1,078 1 U.S. government 2,520 2,426 87 7 State and political subdivisions 1,114 — 1,095 19 Other foreign government 3,749 — 3,714 35 Total fixed maturity securities available-for-sale 60,467 2,426 51,622 6,419 Equity securities 139 69 — 70 Funds withheld at interest – embedded derivatives (377) — — (377) Funds withheld at interest 54 — — 54 Cash equivalents 1,335 1,322 13 — Short-term investments 187 90 95 2 Other invested assets: Derivatives 97 — 97 — Other 22 — 22 — Total other invested assets 119 — 119 — Total $ 61,924 $ 3,907 $ 51,849 $ 6,168 Liabilities: Interest-sensitive contract liabilities – embedded derivatives $ 415 $ — $ — $ 415 Funds withheld at interest – embedded derivatives (206) — — (206) Derivatives – other liabilities 197 — 197 — Total $ 406 $ — $ 197 $ 209 (1) Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2023, the fair value of such investments was $856 million. Quantitative Information Regarding Internally Priced Assets and Liabilities The following table presents quantitative information about significant unobservable inputs used in Level 3 fair value measurements that are developed internally by the Company as of September 30, 2024 and December 31, 2023 (dollars in millions): Estimated Fair Value Valuation Technique Unobservable Input Range (Weighted Average) September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 Assets: Corporate $ 115 $ 91 Market comparable securities Liquidity premium 2-2% (2%) 0-2% (1%) EBITDA Multiple 5.7x-11.0x (8.7x) 6.0x-8.5x (7.1x) ABS 285 268 Market comparable securities Liquidity premium 0-9% (2%) 0-18% (2%) U.S. government 6 7 Market comparable securities Liquidity premium 0-1% (1%) 0-1% (1%) Equity securities 32 31 Market comparable securities Liquidity premium 4% 4% EBITDA Multiple 8.4x-12.8x (10.9x) 8.4x-12.3x (10.1x) Short-Term Investments 1 — Market comparable securities EBITDA Multiple 6.2x — Funds withheld at interest – embedded derivatives 14 (50) Total return swap Mortality 0-100% (3%) 0-100% (3%) Lapse 0-35% (16%) 0-35% (18%) Withdrawal 0-10% (4%) 0-5% (4%) CVA 0-5% (0%) 0-5% (0%) Crediting rate 1-4% (2%) 1-4% (2%) Liabilities: Interest-sensitive contract liabilities – embedded derivatives – indexed annuities 385 415 Discounted cash flow Mortality 0-100% (3%) 0-100% (3%) Lapse 0-35% (15%) 0-35% (17%) Withdrawal 0-10% (4%) 0-5% (4%) Option budget projection 1-4% (2%) 1-4% (2%) Changes in Level 3 Assets and Liabilities Assets and liabilities transferred into Level 3 are due to a lack of observable market transactions and price information. Transfers out of Level 3 are primarily the result of the Company obtaining observable pricing information or a third-party pricing quotation that appropriately reflects the fair value of those assets and liabilities. For further information on the Company’s valuation processes, see Note 13 – “Fair Value of Assets and Liabilities” in the Notes to Consolidated Financial Statements included in the Company’s 2023 Annual Report. The reconciliations for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) are as follows (dollars in millions): For the three months ended September 30, 2024: Fixed maturity securities available-for-sale Funds withheld at interest –embedded derivatives, net (1) Funds Interest-sensitive contract Corporate Foreign govt Structured securities U.S. and local govt Equity securities Cash equivalents Short-term investments Fair value, beginning of period $ 5,501 $ 31 $ 1,497 $ 27 $ 74 $ — $ 15 $ (68) $ 55 $ (386) Total gains/losses (realized/unrealized) Included in earnings, net: Net investment income 4 — — — — — — — 3 — Investment related gains (losses), net (8) — — — 3 — (1) (112) — — Interest credited — — — — — — — — (15) Included in other comprehensive income (loss) 149 3 26 — — — — — 3 — Purchases (2) 809 — 99 — 6 — (3) — 1 (7) Sales (2) (96) — — — (1) — — — — — Settlements (2) (196) — (101) — — — — — (2) 23 Transfers into Level 3 — — 36 — — — — — — — Transfers out of Level 3 (20) — (1) (21) — — — — — — Fair value, end of period $ 6,143 $ 34 $ 1,556 $ 6 $ 82 $ — $ 11 $ (180) $ 60 $ (385) Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period Included in earnings, net: Net investment income $ 3 $ — $ — $ — $ — $ — $ — $ — $ 3 $ — Investment related gains (losses), net (11) — — — 2 — (1) (112) — — Interest credited — — — — — — — — — (39) Included in other comprehensive income (loss) 150 3 26 — — — — — 3 — (1) Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward. (2) The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period. For the nine months ended September 30, 2024: Fixed maturity securities available-for-sale Funds withheld at interest –embedded derivatives, net (1) Funds Interest-sensitive contract Corporate Foreign govt Structured securities U.S. and local govt Equity securities Cash equivalents Short-term investments Fair value, beginning of period $ 4,933 $ 35 $ 1,425 $ 26 $ 70 $ — $ 2 $ (171) $ 54 $ (415) Total gains/losses (realized/unrealized) Included in earnings, net: Net investment income 10 — 3 — — — — — 5 — Investment related gains (losses), net (56) — (1) — (4) — (1) (9) — — Interest credited — — — — — — — — — (27) Included in other comprehensive income (loss) 132 (1) 30 — — — — — 2 — Purchases (2) 2,001 — 287 — 17 — 12 — 2 (18) Sales (2) (278) — (23) — (1) — (1) — — — Settlements (2) (546) — (260) (1) — — — — (3) 75 Transfers into Level 3 1 — 117 2 — — — — — — Transfers out of Level 3 (54) — (22) (21) — — (1) — — — Fair value, end of period $ 6,143 $ 34 $ 1,556 $ 6 $ 82 $ — $ 11 $ (180) $ 60 $ (385) Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period Included in earnings, net: Net investment income $ 6 $ — $ 2 $ — $ — $ — $ — $ — $ 5 $ — Investment related gains (losses), net (56) — (3) — (5) — (1) (9) — — Interest credited — — — — — — — — — (103) Included in other comprehensive income (loss) 135 (1) 32 — — — — — 2 — (1) Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward. (2) The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period. For the three months ended September 30, 2023: Fixed maturity securities available-for-sale Funds withheld at interest –embedded derivatives, net (1) Funds Interest-sensitive contract Corporate Foreign govt Structured securities U.S. and local govt Equity securities Cash equivalents Short-term investments Fair value, beginning of period $ 4,654 $ 35 $ 1,397 $ 29 $ 68 $ — $ 6 $ 9 $ 53 $ (472) Total gains/losses (realized/unrealized) Included in earnings, net: Net investment income 1 — 1 — — — — — — — Investment related gains (losses), net 4 — — — — — — 1 — — Interest credited — — — — — — — — — 3 Included in other comprehensive income (loss) (84) (2) (16) (2) — — — — (2) — Purchases (2) 170 — 29 — — — 9 — — 3 Sales (2) (19) — (10) — — — — — — — Settlements (2) (164) — (76) — — — (1) — — 25 Transfers into Level 3 53 — — — — — — — — — Transfers out of Level 3 — — — — — — (6) — — — Fair value, end of period $ 4,615 $ 33 $ 1,325 $ 27 $ 68 $ — $ 8 $ 10 $ 51 $ (441) Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period Included in earnings, net: Net investment income $ 1 $ — $ 1 $ — $ — $ — $ — $ — $ — $ — Investment related gains (losses), net — — — — — — — 1 — — Interest credited — — — — — — — — — (22) Included in other comprehensive income (loss) (81) (2) (16) (2) — — — — (2) — (1) Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward. (2) The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period. For the nine months ended September 30, 2023: Fixed maturity securities available-for-sale Funds withheld at interest –embedded derivatives, net (1) Funds Interest-sensitive contract Corporate Foreign govt Structured securities U.S. and local govt Equity securities Cash equivalents Short-term investments Fair value, beginning of period $ 4,299 $ 35 $ 1,353 $ 35 $ 66 $ — $ 13 $ (8) $ 54 $ (530) Total gains/losses (realized/unrealized) Included in earnings, net: Net investment income 3 — 4 — — — — — (3) — Investment related gains (losses), net 4 — (1) — (2) — (1) 18 — — Interest credited — — — — — — — — — 14 Included in other comprehensive income (loss) (93) (2) 28 (2) — — — — 1 — Purchases (2) 680 — 144 — 8 1 10 — 1 13 Sales (2) (51) — (14) — (4) — — — — — Settlements (2) (282) — (198) (1) — — (1) — (2) 62 Transfers into Level 3 61 — 64 — — — 6 — — — Transfers out of Level 3 (6) — (55) (5) — (1) (19) — — — Fair value, end of period $ 4,615 $ 33 $ 1,325 $ 27 $ 68 $ — $ 8 $ 10 $ 51 $ (441) Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period Included in earnings, net: Net investment income $ 3 $ — $ 4 $ — $ — $ — $ — $ — $ (3) $ — Investment related gains (losses), net (2) — (2) — (2) — (1) 18 — — Interest credited — — — — — — — — — (47) Included in other comprehensive income (loss) (94) (2) 27 (2) — — — — 1 — (1) Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward. (2) The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period. Nonrecurring Fair Value Measurements The Company has certain assets subject to measurement at fair value on a nonrecurring basis, in periods subsequent to their initial recognition if they are determined to be impaired. For the nine months ended September 30, 2024 and 2023, the Company did not have any material assets that were measured at fair value due to impairment. Fair Value of Financial Instruments Carried at Other Than Fair Value The following table presents the carrying values and estimated fair values of the Company’s financial instruments, which were not measured at fair value on a recurring basis, as of September 30, 2024 and December 31, 2023 (dollars in millions). For additional information regarding the methods and significant assumptions used by the Company to estimate these fair values, see Note 13 – “Fair Value of Assets and Liabilities” in the Notes to Consolidated Financial Statements included in the Company’s 2023 Annual Report. This table excludes any payables or receivables for collateral under repurchase/reverse repurchase agreements and other transactions. The estimated fair value of the excluded amount approximates carrying value as they equal the amount of cash collateral received/paid. September 30, 2024: Carrying Value (1) Estimated Fair Value Measurement Using: Level 1 Level 2 Level 3 Assets: Mortgage loans $ 8,388 $ 8,187 $ — $ — $ 8,187 Policy loans 1,285 1,285 — 1,285 — Funds withheld at interest 5,716 5,424 — — 5,424 Limited partnerships – cost method 55 63 — — 63 Cash and cash equivalents 1,665 1,665 1,665 — — Short-term investments 36 36 36 — — Other invested assets 1,108 916 3 72 841 Accrued investment income 995 995 — 995 — Liabilities: Interest-sensitive contract liabilities (2) $ 22,401 $ 22,559 $ — $ — $ 22,559 Funds withheld at interest 4,860 4,644 — — 4,644 Long-term debt 5,067 5,025 — — 5,025 December 31, 2023: Assets: Mortgage loans $ 7,377 $ 6,975 $ — $ — $ 6,975 Policy loans 1,206 1,206 — 1,206 — Funds withheld at interest 6,005 5,547 — — 5,547 Limited partnerships – cost method 71 73 — — 73 Cash and cash equivalents 1,635 1,635 1,635 — — Short-term investments 35 35 35 — — Other invested assets 1,019 841 4 63 774 Accrued investment income 759 759 — 759 — Liabilities: Interest-sensitive contract liabilities (2) $ 21,797 $ 21,665 $ — $ — $ 21,665 Funds withheld at interest 4,689 4,400 — — 4,400 Long-term debt 4,427 4,243 — — 4,243 (1) Carrying values presented herein may differ from those in the Company’s condensed consolidated balance sheets because certain items within the respective financial statement captions may be measured at fair value on a recurring basis. (2)

Income Tax

Income Tax	9 Months Ended
	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	INCOME TAX The effective tax rate on pre-tax income for the three and nine months ending September 30, 2024, was 26.7% and 24.2%, respectively. The tax rate was higher than the U.S. statutory rate primarily due to adjustments related to tax returns filed during the quarter as well as Subpart F income. These increases were partially offset with benefits received in certain foreign jurisdictions and adjustments to the valuation allowance. The effective tax rate on pre-tax income for the three and nine months ending September 30, 2023, was 24.2% and 24.9%, respectively. The tax rate was higher than the U.S. statutory rate primarily due to income earned in foreign jurisdictions and adjustments to the valuation allowance. These increases were partially offset with benefits received in certain foreign jurisdictions. The Inflation Reduction Act of 2022 (“the Act”) was enacted in 2022. For tax years ending after December 31, 2022, the Act imposes a 15% minimum tax on adjusted financial statement income for “applicable corporations” with average financial statement income over $1 billion for the previous 3-year period ending in 2022 or after. The Company is currently evaluating the impact of recent proposed guidance to determine applicability. The Act also imposes a 1% excise tax on stock buybacks of a publicly traded corporation. The Act is not expected to have a material impact to the Company’s tax expense. Bermuda enacted the Corporate Income Tax Act of 2023 on December 27, 2023. The Bermuda regime, which is effective for fiscal years beginning on or after January 1, 2025, establishes a statutory tax rate of 15%, applicable to companies with annual revenue of EUR 750 million or more. This enactment did not have a material impact on the Company’s financial position or results from operations. The Organization for Economic Cooperation and Development developed the Model Global Anti-Base Erosion (“GloBE”) rules under Pillar II establishing a Global Minimum Tax to ensure multinational enterprises with consolidated revenue of more than EUR 750 million pay at least an effective tax rate of 15% on income arising in each jurisdiction in which they operate. The GloBE model rules serve as a template to allow for each jurisdiction to modify and incorporate into domestic law. As of September 30, 2024, many of the jurisdictions in which the Company operates enacted Pillar II legislation into domestic law with an effective date of January 1, 2024. Guidance is expected to continue throughout 2024 and beyond. The Company continues to evaluate the expected impact of the new law.

Employee Benefit Plans

Employee Benefit Plans	9 Months Ended
	Sep. 30, 2024
Retirement Benefits [Abstract]
Employee Benefit Plans	EMPLOYEE BENEFIT PLANS The components of net periodic benefit cost, included in other operating expenses on the Company’s condensed consolidated statements of income, for the three and nine months ended September 30, 2024 and 2023 were as follows (dollars in millions): Pension Benefits Other Benefits Three months ended September 30, Three months ended September 30, 2024 2023 2024 2023 Service cost $ 3 $ 3 $ — $ — Interest cost 3 3 1 1 Expected return on plan assets (3) (3) — — Amortization of prior service cost (credit) — — — — Amortization of prior actuarial losses 1 1 — — Settlements 1 — — — Net periodic benefit cost $ 5 $ 4 $ 1 $ 1 Pension Benefits Other Benefits Nine months ended September 30, Nine months ended September 30, 2024 2023 2024 2023 Service cost $ 10 $ 10 $ 1 $ 1 Interest cost 8 8 2 2 Expected return on plan assets (9) (8) — — Amortization of prior service cost (credit) — — (1) (1) Amortization of prior actuarial losses 2 2 — — Settlements 1 — — — Net periodic benefit cost $ 12 $ 12 $ 2 $ 2

Commitments, Contingencies and

Commitments, Contingencies and Guarantees	9 Months Ended
	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	COMMITMENTS, CONTINGENCIES AND GUARANTEES Commitments Funding of Investments The Company’s commitments to fund investments as of September 30, 2024 and December 31, 2023, are presented in the following table (dollars in millions): September 30, 2024 December 31, 2023 Limited partnerships and real estate joint ventures $ 1,000 $ 1,058 Mortgage loans 140 137 Bank loans and private placements 1,290 810 Lifetime mortgages 57 53 The Company anticipates that the majority of its current commitments will be invested over the next five years; however, these commitments could become due any time at the request of the counterparties. Bank loans and private placements are included in fixed maturity securities available-for-sale. The Company has an immaterial liability, included in other liabilities, for current expected credit losses associated with unfunded commitments as of September 30, 2024 and December 31, 2023. Funding Agreements Federal Home Loan Bank of Des Moines The Company is a member of the FHLB and, through membership, has issued funding agreements to the FHLB in exchange for cash advances. As of September 30, 2024 and December 31, 2023, the Company had $1.4 billion and $1.1 billion of FHLB funding agreements outstanding, respectively. The Company is required to provide collateral in excess of the funding agreement amounts outstanding, considering any discounts to the securities posted and prepayment penalties. Funding Agreement Backed Notes The Company’s Funding Agreement Backed Notes (“FABN”) program allows RGA Global Funding, a special-purpose, unaffiliated statutory trust, to offer its senior secured medium-term notes to investors. RGA Global Funding uses the net proceeds from each sale to purchase one or more funding agreements from the Company. As of September 30, 2024 and December 31, 2023, the Company had $2.7 billion and $1.3 billion, respectively, of FABN agreements outstanding and are included within interest-sensitive contract liabilities. Contingencies Litigation The Company is subject to litigation and regulatory investigations or actions from time to time. Based on current knowledge, management does not believe that loss contingencies arising from pending legal, regulatory and governmental matters will have a material adverse effect on the financial condition, results of operations or cash flows of the Company. However, in light of the inherent uncertainties involved in future or pending legal, regulatory and governmental matters, some of which are beyond the Company’s control, and indeterminate or potentially substantial amount of damages sought in any such matters, an adverse outcome could be material to the Company’s financial condition, results of operations or cash flows for any particular reporting period. A legal reserve is established when the Company is notified of an arbitration demand, litigation or regulatory action or is notified that an arbitration demand, litigation or regulatory action is imminent, it is probable that the Company will incur a loss as a result and the amount of the probable loss is reasonably capable of being estimated. Other Contingencies The Company indemnifies its directors and officers as provided in its charters and by-laws. Since this indemnity generally is not subject to limitation with respect to duration or amount, the Company does not believe that it is possible to determine the maximum potential amount due under this indemnity in the future. Guarantees Statutory Reserve Support Certain RGA subsidiaries have committed to provide statutory reserve support to third parties, in exchange for a fee, by funding loans if certain defined events occur. Such statutory reserves are required under the U.S. Valuation of Life Policies Model Regulation (commonly referred to as Regulation XXX for term life insurance policies and Regulation A-XXX for universal life secondary guarantees). In addition, certain subsidiaries have also committed to provide capital support to a third party, in exchange for a fee, by agreeing to assume real estate leases in the event of a severe and prolonged decline in the commercial lease market. Upon assumption of a lease, the Company would recognize a right of use asset and lease obligation. As of September 30, 2024, the Company does not believe that it will be required to provide any funding under these commitments as the occurrence of the defined events is considered remote. The following table presents the maximum potential obligation for these commitments as of September 30, 2024 (dollars in millions): Commitment Period Maximum Potential Obligation 2034 $ 1,243 2035 1,909 2036 3,599 2037 5,100 2038 2,550 2039 8,751 2041 720 2046 3,000 2049 4,750

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Segment Information	SEGMENT INFORMATION The accounting policies of the segments are the same as those described in Note 2 – “Significant Accounting Policies and Pronouncements” in the Notes to Consolidated Financial Statements included in the Company’s 2023 Annual Report. The Company measures segment performance primarily based on profit or loss from operations before income taxes. There are no intersegment reinsurance transactions and the Company does not have any material long-lived assets. The Company allocates capital to its segments based on an internally developed economic capital model, the purpose of which is to measure the risk in the business and to provide a basis upon which capital is deployed. The economic capital model considers the unique and specific nature of the risks inherent in the Company’s businesses. As a result of the economic capital allocation process, a portion of investment income is credited to the segments based on the level of allocated capital. In addition, the segments are charged for excess capital utilized above the allocated economic capital basis. This charge is included in policy acquisition costs and other insurance expenses. The Company has geographic-based and business-based operational segments. Geographic-based operations are further segmented into Traditional and Financial Solutions businesses. Information related to revenues, income (loss) before income taxes and total assets of the Company for each reportable segment are summarized below (dollars in millions): Three months ended September 30, Nine months ended September 30, Revenues: 2024 2023 2024 2023 U.S. and Latin America: Traditional $ 2,137 $ 1,949 $ 6,095 $ 5,693 Financial Solutions 917 1,115 3,890 1,908 Total 3,054 3,064 9,985 7,601 Canada: Traditional 385 366 1,160 1,098 Financial Solutions 116 26 244 79 Total 501 392 1,404 1,177 Europe, Middle East and Africa: Traditional 550 471 1,599 1,382 Financial Solutions 255 160 698 459 Total 805 631 2,297 1,841 Asia Pacific: Traditional 819 801 2,388 2,282 Financial Solutions 303 130 548 397 Total 1,122 931 2,936 2,679 Corporate and Other 169 135 244 262 Total $ 5,651 $ 5,153 $ 16,866 $ 13,560 Three months ended September 30, Nine months ended September 30, Income (loss) before income taxes: 2024 2023 2024 2023 U.S. and Latin America: Traditional $ 57 $ 105 $ 347 $ 288 Financial Solutions (46) 108 54 290 Total 11 213 401 578 Canada: Traditional 29 6 103 70 Financial Solutions 21 30 34 46 Total 50 36 137 116 Europe, Middle East and Africa: Traditional (17) (60) 12 (29) Financial Solutions 84 84 220 195 Total 67 24 232 166 Asia Pacific: Traditional 11 134 220 302 Financial Solutions 93 (16) 48 (9) Total 104 118 268 293 Corporate and Other (18) (11) (283) (157) Total $ 214 $ 380 $ 755 $ 996 Assets: September 30, 2024 December 31, 2023 U.S. and Latin America: Traditional $ 25,871 $ 24,320 Financial Solutions 30,208 28,385 Total 56,079 52,705 Canada: Traditional 4,707 5,111 Financial Solutions 5,548 219 Total 10,255 5,330 Europe, Middle East and Africa: Traditional 4,686 4,334 Financial Solutions 8,291 5,656 Total 12,977 9,990 Asia Pacific: Traditional 9,079 9,925 Financial Solutions 23,002 14,680 Total 32,081 24,605 Corporate and Other 8,866 4,993 Total $ 120,258 $ 97,623

Financing Activities

Financing Activities	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Debt Disclosure	FINANCING ACTIVITIES On May 13, 2024, the Company issued 5.75% fixed rate Senior Notes due 2034 with a face amount of $650 million and will be used for general corporate purposes. Capitalized issuance costs were $6 million.

New Accounting Standards

New Accounting Standards	9 Months Ended
	Sep. 30, 2024
Accounting Changes and Error Corrections [Abstract]
Net Accounting Standards Not Yet Adopted	NEW ACCOUNTING STANDARDS Changes to the general accounting principles are established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standards updates to the FASB Accounting Standards Codification™. Accounting standards updates not listed below were assessed and determined to be either not applicable or are expected to have a minimal impact on the Company’s condensed consolidated financial statements. Description Anticipated Date of Adoption Effect on the Consolidated Financial Statements Segment Reporting This standard improves reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. In addition, the amendments enhance interim disclosure requirements, clarify circumstances in which an entity can disclose multiple segment measures of profit or loss, provide new segment disclosure requirements for entities with a single reportable segment and contain other disclosure requirements. Early adoption is permitted. December 31, 2024 The adoption of the new standard will be applied retrospectively to all periods presented in the year of adoption. The adoption of the new standard will expand the Company’s disclosures but will not have an impact on its results of operations or financial position. Income Taxes This standard improves income tax disclosure requirements, which requires disaggregated information about a reporting entity’s effective tax rate reconciliation, information on income taxes paid and other disclosure requirements. Early adoption is permitted. December 31, 2025 The adoption of the new standard will be applied prospectively. Retrospective application is permitted. The adoption of the new standard will expand the Company’s disclosures but will not have an impact on its results of operations or financial position.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pay vs Performance Disclosure
Net income	$ 156	$ 287	$ 569	$ 744

Insider Trading Arrangements

Insider Trading Arrangements	9 Months Ended
	Sep. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Schedule Of Earnings Per Share Basic And Diluted By Common Class [Text Block]	The following table sets forth the computation of basic and diluted earnings per share on net income (in millions, except per share information): Three months ended September 30, Nine months ended September 30, 2024 2023 2024 2023 Earnings: Net income (numerator for basic and diluted calculations) $ 158 $ 289 $ 574 $ 749 Less: Net income attributable to noncontrolling interest 2 2 5 5 Net income available to RGA, Inc. shareholders $ 156 $ 287 $ 569 $ 744 Shares: Weighted average outstanding shares (denominator for basic calculation) 66 66 66 66 Equivalent shares from outstanding stock awards 1 1 1 1 Diluted shares (denominator for diluted calculation) 67 67 67 67 Earnings per share: Basic $ 2.37 $ 4.34 $ 8.64 $ 11.19 Diluted $ 2.33 $ 4.29 $ 8.53 $ 11.06

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 2024
Stockholders' Equity Note [Abstract]
Schedule of Stock by Class [Table Text Block]	The changes in number of common stock shares issued, held in treasury and outstanding are as follows for the periods indicated: Issued Held In Treasury Outstanding Balance, December 31, 2023 85,310,598 19,689,885 65,620,713 Common stock acquired — — — Equity based compensation (1) — (243,171) 243,171 Balance, September 30, 2024 85,310,598 19,446,714 65,863,884 Issued Held In Treasury Outstanding Balance, December 31, 2022 85,310,598 18,634,390 66,676,208 Common stock acquired — 1,069,113 (1,069,113) Equity based compensation (1) — (265,118) 265,118 Balance, September 30, 2023 85,310,598 19,438,385 65,872,213 (1) Represents net shares issued from treasury pursuant to the Company’s equity based compensation programs.
Components of Accumulated Other Comprehensive Income	The balance of and changes in each component of accumulated other comprehensive income (loss) (“AOCI”) for the nine months ended September 30, 2024 and 2023 are as follows (dollars in millions): Accumulated Other Comprehensive Income (Loss), Net of Income Tax Foreign Currency Translation Adjustments Net Unrealized Investment Gains (Losses) (1) Pension and Effect of Updating Discount Rates on Future Policy Benefits Instrument-Specific Credit Risk for Market Risk Benefits Total Balance, December 31, 2023 $ 69 $ (3,668) $ (29) $ 3,256 $ 3 $ (369) Other comprehensive income (loss) before reclassifications 50 696 (1) 938 4 1,687 Amounts reclassified from AOCI — 389 1 — — 390 Deferred income tax benefit (expense) (11) (217) — (207) (1) (436) Balance, September 30, 2024 $ 108 $ (2,800) $ (29) $ 3,987 $ 6 $ 1,272 Accumulated Other Comprehensive Income (Loss), Net of Income Tax Foreign Currency Translation Adjustments Net Unrealized Investment Gains (Losses) (1) Pension and Effect of Updating Discount Rates on Future Policy Benefits Instrument-Specific Credit Risk for Market Risk Benefits Total Balance, December 31, 2022 $ (116) $ (5,496) $ (27) $ 3,755 $ 13 $ (1,871) Other comprehensive income (loss) before reclassifications 116 (1,652) 16 2,050 (8) 522 Amounts reclassified from AOCI — 140 1 — — 141 Deferred income tax benefit (expense) (33) 349 (4) (439) 2 (125) Balance, September 30, 2023 $ (33) $ (6,659) $ (14) $ 5,366 $ 7 $ (1,333) (1) Includes cash flow hedges of $(229) and $(218) as of September 30, 2024 and December 31, 2023, respectively, and $(351) and $(205) as of September 30, 2023 and December 31, 2022, respectively. See Note 11 – “Derivative Instruments” for additional information on cash flow hedges.
Reclassification Out Of Accumulated Other Comprehensive Income	The following table presents the amounts of AOCI reclassifications for the three and nine months ended September 30, 2024 and 2023 (dollars in millions): Amount Reclassified from AOCI Three months ended September 30, Nine months ended September 30, Affected Line Item in Details about AOCI Components 2024 2023 2024 2023 Net unrealized investment gains (losses): Net unrealized gains (losses) on available-for-sale securities $ (68) $ (36) $ (356) $ (132) Investment related gains (losses), net Cash flow hedges – Interest rate 3 3 9 7 (1) Cash flow hedges – Currency/Interest rate (20) (8) (42) (15) (1) Total (85) (41) (389) (140) Provision for income taxes 18 13 79 36 Net unrealized gains (losses), net of tax $ (67) $ (28) $ (310) $ (104) Amortization of defined benefit plan items: Prior service cost (credit) $ — $ — $ 1 $ 1 (2) Actuarial gains (losses) (1) (1) (2) (2) (2) Total (1) (1) (1) (1) Provision for income taxes — — — — Amortization of defined benefit plans, net of tax $ (1) $ (1) $ (1) $ (1) Total reclassifications for the period $ (68) $ (29) $ (311) $ (105) (1) See Note 11 – “Derivative Instruments” for additional information on cash flow hedges. (2) This AOCI component is included in the computation of the net periodic pension cost. See Note 14 – “Employee Benefit Plans” for additional details.

Future Policy Benefits (Tables)

Future Policy Benefits (Tables)	9 Months Ended
	Sep. 30, 2024
Insurance [Abstract]
Liability for Future Policy Benefit, Activity	Liability for Future Policy Benefits – Traditional Business The Company reviews actual and anticipated experience compared to the assumptions used to establish policy benefits on a quarterly basis and will update those assumptions if evidence suggests that they should be revised. It is the Company’s policy to complete its annual assumption review during the third quarter of each year. However, updates may occur in other quarters if information becomes available during the quarter that indicates an assumption update is necessary. Significant assumptions used to compute the liability for future policy benefits for the Traditional business include mortality, morbidity, lapse rates and discount rates (both accretion and current). During the third quarter of 2024 and 2023, the Company completed its annual assumption review resulting in a $39 million and $85 million increase in the Company’s liability for future policy benefits for its Traditional business during 2024 and 2023, respectively. The increase in the liability in 2024 and 2023 was primarily the result of updating the mortality and lapse assumptions used to measure the liability for future policy benefits. The Company also updated the underlying market data used to determine the current discount rate resulting in changes to the discount rate assumption used to measure the net liability for future policy benefits. The following tables provide the balances of and changes in the Company’s liability for future policy benefits for long-duration reinsurance contracts for its Traditional business, which primarily consists of individual life, group life and critical illness reinsurance for the nine months ended September 30, 2024 and 2023 (dollars in millions): For the nine months ended September 30, 2024: U.S. and Latin America – Traditional Canada – Traditional Europe, Middle East and Africa – Traditional Asia Pacific – Traditional Present Value of Expected Net Premiums Beginning of year balance at original discount rate $ 76,943 $ 22,689 $ 15,328 $ 42,741 Effect of changes in cash flow assumptions 67 (592) 187 975 Effect of actual variances from expected experience (510) 183 421 210 Adjusted balance, beginning of year 76,500 22,280 15,936 43,926 Issuances (1) 4,980 385 861 2,825 Interest accrual (2) 2,617 560 394 843 Net premiums collected (3) (4,390) (737) (1,119) (1,653) Derecognition (4) (1,000) — — — Foreign currency translation (6) (480) 751 (139) Ending balance at original discount rate 78,701 22,008 16,823 45,802 Effect of changes in discount rate assumptions (4,225) (4,388) (2,803) (12,360) Balance, end of period $ 74,476 $ 17,620 $ 14,020 $ 33,442 Present Value of Expected Future Policy Benefits Beginning of year balance at original discount rate $ 89,036 $ 26,275 $ 16,756 $ 47,370 Effect of changes in cash flow assumptions 36 (620) 212 1,048 Effect of actual variances from expected experience (623) 177 417 121 Adjusted balance, beginning of year 88,449 25,832 17,385 48,539 Issuances (1) 4,980 385 861 2,825 Interest accrual (2) 3,049 721 425 964 Benefit payments (5) (4,292) (799) (1,115) (1,476) Derecognition (4) (1,008) — — — Foreign currency translation (5) (563) 794 (138) Ending balance at original discount rate 91,173 25,576 18,350 50,714 Effect of changes in discount rate assumptions (5,364) (3,651) (3,131) (14,496) Balance, end of period $ 85,809 $ 21,925 $ 15,219 $ 36,218 Liability for future policy benefits $ 11,333 $ 4,305 $ 1,199 $ 2,776 Less: reinsurance recoverable (726) (272) (24) (85) Net liability for future policy benefits $ 10,607 $ 4,033 $ 1,175 $ 2,691 Weighted average duration of the liability (in years) 12 14 8 15 Weighted average interest accretion rate 4.6 % 3.6 % 3.3 % 2.6 % Weighted average current discount rate 5.1 % 4.8 % 5.5 % 4.6 % (1) Issuances: The present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new reinsurance contracts that became effective during the current period and new policies assumed on existing contracts. (2) Interest accrual: The interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (3) Net premiums collected: The portion of gross premiums collected from the ceding company that is used to fund expected benefit payments. (4) Derecognition: Includes the effects of treaty recaptures and treaty amendments that resulted in the termination of an existing treaty and the issuance of a new treaty under the internal replacement model. (5) Benefit payments: The release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal, and other benefit payments based on current assumptions. For the nine months ended September 30, 2023: U.S. and Latin America – Traditional Canada – Traditional Europe, Middle East and Africa – Traditional Asia Pacific – Traditional Present Value of Expected Net Premiums Beginning of year balance at original discount rate $ 74,207 $ 21,330 $ 14,244 $ 40,506 Effect of changes in cash flow assumptions 905 96 199 (180) Effect of actual variances from expected experience 68 408 75 9 Adjusted balance, beginning of year 75,180 21,834 14,518 40,335 Issuances (1) 3,186 369 884 2,839 Interest accrual (2) 2,619 562 373 794 Net premiums collected (3) (4,491) (700) (1,067) (1,493) Derecognition (4) (35) — — — Foreign currency translation 5 (54) (77) (1,517) Ending balance at original discount rate 76,464 22,011 14,631 40,958 Effect of changes in discount rate assumptions (10,563) (5,879) (3,145) (13,178) Balance, end of period $ 65,901 $ 16,132 $ 11,486 $ 27,780 Present Value of Expected Future Policy Benefits Beginning of year balance at original discount rate $ 85,285 $ 24,655 $ 15,454 $ 44,785 Effect of changes in cash flow assumptions 922 108 246 (171) Effect of actual variances from expected experience 73 413 84 (40) Adjusted balance, beginning of year 86,280 25,176 15,784 44,574 Issuances (1) 3,186 369 884 2,839 Interest accrual (2) 3,023 720 402 907 Benefit payments (5) (4,097) (752) (1,033) (1,287) Derecognition (4) (54) — — — Foreign currency translation 5 (60) (77) (1,559) Ending balance at original discount rate 88,343 25,453 15,960 45,474 Effect of changes in discount rate assumptions (13,185) (5,520) (3,402) (15,342) Balance, end of period $ 75,158 $ 19,933 $ 12,558 $ 30,132 Liability for future policy benefits $ 9,257 $ 3,801 $ 1,072 $ 2,352 Less: reinsurance recoverable (658) (259) (33) (115) Net liability for future policy benefits $ 8,599 $ 3,542 $ 1,039 $ 2,237 Weighted average duration of the liability (in years) 11 14 8 15 Weighted average interest accretion rate 4.7 % 3.7 % 3.5 % 2.7 % Weighted average current discount rate 5.9 % 5.4 % 6.0 % 4.9 % (1) Issuances: The present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new reinsurance contracts that became effective during the current period and new policies assumed on existing contracts. (2) Interest accrual: The interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (3) Net premiums collected: The portion of gross premiums collected from the ceding company that is used to fund expected benefit payments. (4) Derecognition: Includes the effects of treaty recaptures and treaty amendments that resulted in the termination of an existing treaty and the issuance of a new treaty under the internal replacement model. (5) Benefit payments: The release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal, and other benefit payments based on current assumptions. The Company’s Traditional business actual-to-expected variances and the effects of changes in cash flow and discount rate assumptions for the nine months ended September 30, 2024 and 2023 are summarized in the tables below: For the nine months ended September 30, 2024: Segment Liability for future policy benefits at original discount rate Changes in cash flow assumptions Actual-to-expected variance Impact of updating discount rate recognized in OCI U.S. and Latin America – Traditional $12.5 billion $(31) million $(113) million $7 million Canada – Traditional $3.6 billion $(28) million $(6) million $(134) million Europe, Middle East and Africa – Traditional $1.5 billion $25 million $(4) million $(109) million Asia Pacific – Traditional $4.9 billion $73 million $(89) million $(171) million For the nine months ended September 30, 2023: Segment Liability for future policy benefits at original discount rate Changes in cash flow assumptions Actual-to-expected variance Impact of updating discount rate recognized in OCI U.S. and Latin America – Traditional $12.0 billion $17 million $5 million $(1) million Canada – Traditional $3.4 billion $12 million $5 million $(267) million Europe, Middle East and Africa – Traditional $1.3 billion $47 million $9 million $(88) million Asia Pacific – Traditional $4.5 billion $9 million $(49) million $(233) million Liability for Future Policy Benefits – Financial Solutions Business The Company reviews actual and anticipated experience compared to the assumptions used to establish policy benefits on a quarterly basis and will update those assumptions if evidence suggests that they should be revised. The Company expects to complete its annual review and any necessary updates of cash flow assumptions used to calculate the liability for future policy benefits during the third quarter of each year. Updates may occur in other quarters if information becomes available during the quarter that indicates an assumption update is necessary. Significant assumptions used to compute the liability for future policy benefits for the Financial Solutions business include mortality, morbidity, lapse rates and discount rates (both accretion and current). During the third quarter of 2024 and 2023, the Company completed its annual assumption review resulting in a $20 million increase and $78 million decrease in the Company’s liability for future policy benefits for its Financial Solutions business during 2024 and 2023, respectively. The increase and decrease in the liability in 2024 and 2023 were primarily the result of updating the lapse and mortality assumptions used to measure the liability for future policy benefits. The Company also updated the underlying market data used to determine the current discount rate resulting in changes to the discount rate assumption used to measure the net liability for future policy benefits. The following tables provide the balances of and changes in the Company’s liability for future policy benefits, including the deferred profit liability related to the longevity business, for its Financial Solutions business, which primarily consists of longevity reinsurance, asset-intensive products, primarily annuities and financial reinsurance for the nine months ended September 30, 2024 and 2023 (dollars in millions): For the nine months ended September 30, 2024: U.S. and Latin America – Financial Solutions Canada – Financial Solutions Europe, Middle East and Africa – Financial Solutions Asia Pacific – Financial Solutions Present Value of Expected Net Premiums Beginning of year balance at original discount rate $ 1,455 $ 3,184 $ 54,832 $ 2,057 Effect of changes in cash flow assumptions 12 — (93) 1 Effect of actual variances from expected experience (3) (7) 1,025 (7) Adjusted balance, beginning of year 1,464 3,177 55,764 2,051 Issuances (1) 2,755 4,983 9,881 6,443 Interest accrual (2) 33 96 1,364 22 Net premiums collected (3) (2,867) (4,284) (4,046) (6,823) Derecognition (4) — — — — Foreign currency translation — (56) 2,596 (52) Ending balance at original discount rate 1,385 3,916 65,559 1,641 Effect of changes in discount rate assumptions (179) (204) (8,677) (232) Balance, end of period $ 1,206 $ 3,712 $ 56,882 $ 1,409 Present Value of Expected Future Policy Benefits Beginning of year balance at original discount rate $ 6,843 $ 3,210 $ 60,938 $ 8,019 Effect of changes in cash flow assumptions 20 — (90) 10 Effect of actual variances from expected experience — (7) 1,026 (8) Adjusted balance, beginning of year 6,863 3,203 61,874 8,021 Issuances (1) 2,882 4,983 9,881 6,443 Interest accrual (2) 276 189 1,530 129 Benefit payments (5) (538) (310) (3,676) (326) Derecognition (4) — — — — Foreign currency translation — (3) 2,918 108 Ending balance at original discount rate 9,483 8,062 72,527 14,375 Effect of changes in discount rate assumptions (215) (33) (9,571) (1,544) Balance, end of period $ 9,268 $ 8,029 $ 62,956 $ 12,831 Cumulative amount of fair value hedging adjustments $ 32 $ — $ — $ — Liability for future policy benefits $ 8,094 $ 4,317 $ 6,074 $ 11,422 Less: reinsurance recoverable (1,241) — — — Net liability for future policy benefits $ 6,853 $ 4,317 $ 6,074 $ 11,422 Weighted average duration of the liability (in years) 8 13 10 15 Weighted average interest accretion rate 3.9 % 4.1 % 3.1 % 1.6 % Weighted average current discount rate 4.9 % 4.7 % 5.0 % 2.8 % (1) Issuances: The present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new reinsurance contracts that became effective during the current period and new policies assumed on existing contracts. (2) Interest accrual: The interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (3) Net premiums collected: The portion of gross premiums collected from the ceding company that is used to fund expected benefit payments. (4) Derecognition: Includes the effects of treaty recaptures and treaty amendments that resulted in the termination of an existing treaty and the issuance of a new treaty under the internal replacement model. (5) Benefit payments: The release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal, and other benefit payments based on current assumptions. For the nine months ended September 30, 2023: U.S. and Latin America – Financial Solutions Canada – Financial Solutions Europe, Middle East and Africa – Financial Solutions Asia Pacific – Financial Solutions Present Value of Expected Net Premiums Beginning of year balance at original discount rate $ 1,671 $ 3,394 $ 38,782 $ 1,605 Effect of changes in cash flow assumptions (69) (54) (561) — Effect of actual variances from expected experience (20) (5) 387 (10) Adjusted balance, beginning of year 1,582 3,335 38,608 1,595 Issuances (1) 923 — 6,278 2,131 Interest accrual (2) 37 80 678 19 Net premiums collected (3) (1,064) (249) (3,045) (1,573) Derecognition (4) — — — — Foreign currency translation 2 (6) 15 (236) Ending balance at original discount rate 1,480 3,160 42,534 1,936 Effect of changes in discount rate assumptions (336) (482) (9,571) (178) Balance, end of period $ 1,144 $ 2,678 $ 32,963 $ 1,758 Present Value of Expected Future Policy Benefits Beginning of year balance at original discount rate $ 5,823 $ 3,447 $ 44,330 $ 6,561 Effect of changes in cash flow assumptions (91) (76) (595) — Effect of actual variances from expected experience (28) (13) 374 (12) Adjusted balance, beginning of year 5,704 3,358 44,109 6,549 Issuances (1) 931 — 6,278 2,141 Interest accrual (2) 173 81 807 65 Benefit payments (5) (405) (248) (2,748) (199) Derecognition (4) (16) — — — Foreign currency translation 1 (5) 37 (948) Ending balance at original discount rate 6,388 3,186 48,483 7,608 Effect of changes in discount rate assumptions (788) (480) (10,552) (997) Balance, end of period $ 5,600 $ 2,706 $ 37,931 $ 6,611 Liability for future policy benefits $ 4,456 $ 28 $ 4,968 $ 4,853 Less: reinsurance recoverable — — — — Net liability for future policy benefits $ 4,456 $ 28 $ 4,968 $ 4,853 Weighted average duration of the liability (in years) 8 7 9 15 Weighted average interest accretion rate 3.5 % 3.3 % 2.3 % 1.3 % Weighted average current discount rate 5.9 % 5.5 % 5.3 % 2.4 % (1) Issuances: The present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new reinsurance contracts that became effective during the current period and new policies assumed on existing contracts. (2) Interest accrual: The interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (3) Net premiums collected: The portion of gross premiums collected from the ceding company that is used to fund expected benefit payments. (4) Derecognition: Includes the effects of treaty recaptures and treaty amendments that resulted in the termination of an existing treaty and the issuance of a new treaty under the internal replacement model. (5) Benefit payments: The release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal, and other benefit payments based on current assumptions. The Company’s Financial Solutions business actual-to-expected variances (including the effects of model updates) and the effects of changes in cash flow and discount rate assumptions for the nine months ended September 30, 2024 and 2023 are summarized in the tables below: For the nine months ended September 30, 2024: Segment Liability for future policy benefits at original discount rate Changes in cash flow assumptions Actual-to-expected variance Impact of updating discount rate recognized in OCI U.S. and Latin America – Financial Solutions $8.1 billion $8 million $3 million $124 million Canada – Financial Solutions $4.1 billion None None $168 million Europe, Middle East and Africa – Financial Solutions $7.0 billion $3 million $1 million $(241) million Asia Pacific – Financial Solutions $12.7 billion $9 million $(1) million $(540) million For the nine months ended September 30, 2023: Segment Liability for future policy benefits at original discount rate Changes in cash flow assumptions Actual-to-expected variance Impact of updating discount rate recognized in OCI U.S. and Latin America – Financial Solutions $4.9 billion $(22) million $(8) million $(119) million Canada – Financial Solutions $26 million $(22) million $(8) million $1 million Europe, Middle East and Africa – Financial Solutions $5.9 billion $(34) million $(13) million $(67) million Asia Pacific – Financial Solutions $5.7 billion None $(2) million $(359) million
Future Policy Benefits Reconciliation To Balance Sheet	Reconciliation and Other Disclosures The reconciliation of the rollforward of the liability for future policy benefits to the condensed consolidated balance sheets as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, 2024 2023 Liability for future policy benefits included in the rollforwards: Traditional: U.S. and Latin America $ 11,333 $ 9,257 Canada 4,305 3,801 Europe, Middle East and Africa 1,199 1,072 Asia Pacific 2,776 2,352 Financial Solutions: U.S. and Latin America 8,094 4,456 Canada 4,317 28 Europe, Middle East and Africa 6,074 4,968 Asia Pacific 11,422 4,853 Other long-duration contracts 117 126 Claims liability and incurred but not reported claims 5,406 5,062 Unearned revenue liability 890 499 Total liability for future policy benefits $ 55,933 $ 36,474
Undiscounted and Discounted Future Gross Premiums and Expected Future Benefits	The amount of undiscounted and discounted expected future gross premiums and expected future benefit payments for the liability for future policy benefits included in the rollforwards as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, 2024 2023 Undiscounted Discounted Undiscounted Discounted Expected future gross premiums Traditional: U.S. and Latin America $ 182,731 $ 87,831 $ 177,307 $ 77,008 Canada 54,520 21,928 54,378 19,902 Europe, Middle East and Africa 28,668 15,609 24,778 13,131 Asia Pacific 103,658 42,453 90,652 35,372 Financial Solutions: U.S. and Latin America 2,816 1,828 3,012 1,794 Canada 6,306 4,101 4,545 2,856 Europe, Middle East and Africa 111,948 57,940 68,410 36,603 Asia Pacific 4,089 2,988 3,797 2,828 Expected future benefit payments Traditional: U.S. and Latin America $ 191,246 $ 85,809 $ 188,177 $ 75,158 Canada 56,312 21,925 56,423 19,933 Europe, Middle East and Africa 28,796 15,219 24,509 12,558 Asia Pacific 99,908 36,218 87,120 30,132 Financial Solutions: U.S. and Latin America 15,257 9,268 10,233 5,600 Canada 17,933 8,029 4,285 2,706 Europe, Middle East and Africa 120,917 62,956 71,027 37,931 Asia Pacific 22,330 12,831 10,522 6,611
Gross Premiums And Interest Expense Liability Future Policy Benefits	The amount of gross premiums and interest expense recognized in the condensed consolidated statements of income for the liability for future policy benefits included in the rollforwards for the nine months ended September 30, 2024 and 2023 is as follows (dollars in millions): Gross Premiums Interest Expense September 30, September 30, 2024 2023 2024 2023 Traditional: U.S. and Latin America $ 4,658 $ 4,435 $ 432 $ 404 Canada 825 808 161 158 Europe, Middle East and Africa 1,101 1,058 31 29 Asia Pacific 2,095 1,959 121 113 Financial Solutions: U.S. and Latin America 2,816 979 243 136 Canada 120 68 93 1 Europe, Middle East and Africa 669 515 166 129 Asia Pacific 158 171 107 46 Total $ 12,442 $ 9,993 $ 1,354 $ 1,016 During the nine months ended September 30, 2024 and 2023, no material charges were incurred resulting from net premiums exceeding gross premiums.

Policyholder Account Balances (

Policyholder Account Balances (Tables)	9 Months Ended
	Sep. 30, 2024
Insurance [Abstract]
Policyholder Account Balance	Policyholder Account Balances The following tables provide the balances of and changes in the Company’s liability for its policyholder account balances, reflected in interest-sensitive contract liabilities, for the nine months ended September 30, 2024 and 2023 (dollars in millions): For the nine months ended September 30, 2024: U.S. and Latin America – Traditional U.S. and Latin America – Financial Solutions Asia Pacific – Financial Solutions Balance, beginning of year $ 1,612 $ 17,838 $ 3,990 Deposits 1,779 101 1,262 Policy charges (103) (61) (137) Surrenders and withdrawals (11) (1,598) (903) Benefit payments (91) (346) (331) Interest credited 132 432 84 Foreign currency translation — — 4 Balance, end of period $ 3,318 $ 16,366 $ 3,969 Less: reinsurance recoverable — (2,844) — Balance, end of period, after reinsurance $ 3,318 $ 13,522 $ 3,969 Weighted average crediting rate 3.1 % 3.5 % 3.7 % Net amount at risk (1) $ 34,671 $ 6,614 $ 13 Cash surrender value $ 3,313 $ 16,262 $ 3,618 For the nine months ended September 30, 2023: U.S. and Latin America – Traditional U.S. and Latin America – Financial Solutions Asia Pacific – Financial Solutions Balance, beginning of year $ 1,683 $ 18,906 $ 3,351 Deposits 20 84 765 Policy charges (23) (26) (5) Surrenders and withdrawals (11) (1,517) (93) Benefit payments (96) (357) (79) Interest credited 49 425 82 Foreign currency translation — — (43) Balance, end of period $ 1,622 $ 17,515 $ 3,978 Less: reinsurance recoverable — (1,501) — Balance, end of period, after reinsurance $ 1,622 $ 16,014 $ 3,978 Weighted average crediting rate 4.4 % 3.3 % 3.0 % Net amount at risk (1) $ 664 $ 2,410 $ — Cash surrender value $ 1,608 $ 17,479 $ 3,760 (1) Net amount at risk is defined as the guaranteed amount less the account value as of the balance sheet date. The balance represents the amount of the claim the Company would incur if death claims were filed on all contracts on the balance sheet date. Information regarding the Company’s policyholder account balances as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, 2024 2023 Policyholder account balances included in the rollforwards: Traditional: U.S. and Latin America $ 3,318 $ 1,622 Financial Solutions: U.S. and Latin America 16,366 17,515 Asia Pacific 3,969 3,978 Other policyholder account balances U.S. and Latin America – Financial Solutions 76 51 Total policyholder account balances $ 23,729 $ 23,166
Policyholder Account Balance, Guaranteed Minimum Crediting Rate	The balance of account values by range of guaranteed minimum crediting rates and the related range of difference, in basis points, between rates being credited to policyholders and the respective guaranteed minimums as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, 2024 Range of Guaranteed Minimum Crediting Rate At Guaranteed Minimum 1 Basis Point – 50 Basis Points Above 51 Basis Points – 100 Basis Points Above 101 Basis Points – 150 Basis Points Above Greater Than 150 Basis Points Above Total U.S. and Latin America – Traditional Less than 1.00% $ 702 $ — $ — $ — $ — $ 702 1.00 – 1.99% 56 2 8 — — 66 2.00 – 2.99% 108 — — 1 — 109 3.00 – 3.99% 495 7 117 — — 619 4.00% and Greater 739 103 980 — — 1,822 Total $ 2,100 $ 112 $ 1,105 $ 1 $ — $ 3,318 U.S. and Latin America – Financial Solutions Less than 1.00% $ — $ — $ — $ — $ — $ — 1.00 – 1.99% 1,342 12 10 35 29 1,428 2.00 – 2.99% 1,301 15 35 530 170 2,051 3.00 – 3.99% 3,693 213 116 4 2 4,028 4.00% and Greater 8,827 32 — — — 8,859 Total $ 15,163 $ 272 $ 161 $ 569 $ 201 $ 16,366 Asia Pacific – Financial Solutions Less than 1.00% $ 193 $ — $ — $ — $ — $ 193 1.00 – 1.99% 477 — — — — 477 2.00 – 2.99% 492 — — — — 492 3.00 – 3.99% 993 — — — — 993 4.00% and Greater 1,814 — — — — 1,814 Total $ 3,969 $ — $ — $ — $ — $ 3,969 September 30, 2023 Range of Guaranteed Minimum Crediting Rate At Guaranteed Minimum 1 Basis Point – 50 Basis Points Above 51 Basis Points – 100 Basis Points Above 101 Basis Points – 150 Basis Points Above Greater Than 150 Basis Points Above Total U.S. and Latin America – Traditional Less than 1.00% $ — $ — $ — $ — $ — $ — 1.00 – 1.99% — — — — — — 2.00 – 2.99% — — — — — — 3.00 – 3.99% — — — — — — 4.00% and Greater 514 108 1,000 — — 1,622 Total $ 514 $ 108 $ 1,000 $ — $ — $ 1,622 U.S. and Latin America – Financial Solutions Less than 1.00% $ — $ — $ — $ — $ — $ — 1.00 – 1.99% 1,681 10 15 63 35 1,804 2.00 – 2.99% 1,625 14 42 608 62 2,351 3.00 – 3.99% 4,335 234 81 2 — 4,652 4.00% and Greater 8,665 43 — — — 8,708 Total $ 16,306 $ 301 $ 138 $ 673 $ 97 $ 17,515 Asia Pacific – Financial Solutions Less than 1.00% $ 281 $ — $ — $ — $ — $ 281 1.00 – 1.99% 699 — — — — 699 2.00 – 2.99% 827 — — — — 827 3.00 – 3.99% 1,289 — — — — 1,289 4.00% and Greater 882 — — — — 882 Total $ 3,978 $ — $ — $ — $ — $ 3,978

Unpaid Claims and Claims Expe_2

Unpaid Claims and Claims Expense Short Duration Contracts (Tables)	3 Months Ended
	Sep. 30, 2024
Insurance [Abstract]
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]	The liability for unpaid claims for short-duration contracts is reported in other policy claims and benefits on the Company’s condensed consolidated balance sheets. Activity associated with unpaid claims is summarized below (dollars in millions): Nine months ended September 30, 2024 2023 Balance, beginning of year $ 2,730 $ 2,480 Less: reinsurance recoverable (80) (57) Net balance, beginning of year 2,650 2,423 Incurred: Current year 1,161 1,268 Prior years (83) (89) Total incurred 1,078 1,179 Payments: Current year (240) (278) Prior years (700) (721) Total payments (940) (999) Other changes: Interest accretion 29 25 Foreign exchange adjustments (4) (45) Total other changes 25 (20) Net balance, end of period 2,813 2,583 Plus: reinsurance recoverable 62 71 Balance, end of period $ 2,875 $ 2,654

Market Risk Benefits (Tables)

Market Risk Benefits (Tables)	9 Months Ended
	Sep. 30, 2024
Insurance [Abstract]
Market Risk Benefit, Activity	The following table provides the balances of and changes in the Company’s market risk benefits for the nine months ended September 30, 2024 and 2023 (dollars in millions): U.S. and Latin America – Financial Solutions Nine months ended September 30, 2024 2023 Balance, beginning of year $ 249 $ 247 Balance, beginning of year, before effect of changes in the instrument-specific credit risk 253 263 Interest accrual 8 9 Attributed fees collected 19 19 Benefit payments — 1 Effect of changes in future assumptions 3 16 Effect of changes in interest rates (3) (54) Effect of changes in equity markets (39) (25) Effect of changes in volatility — (5) Other market impacts (13) (11) Actual policyholder behavior different from expected behavior 13 12 Balance, end of period, before effect of changes in the instrument-specific credit risk 241 225 Effect of changes in the instrument-specific credit risk (8) (9) Balance, end of period 233 216 Less: reinsurance recoverable — — Balance, end of period, after reinsurance $ 233 $ 216 Net amount at risk $ 1,285 $ 1,375 Weighted average attained age of contract holders (in years) 71 71 The reconciliation of the rollforward for market risk benefits to the condensed consolidated balance sheets as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, September 30, 2024 2023 Asset (1) Liability Net Asset (1) Liability Net U.S. and Latin America – Financial Solutions $ 14 $ 247 $ (233) $ 8 $ 224 $ (216) Total market risk benefits $ 14 $ 247 $ (233) $ 8 $ 224 $ (216) (1) Included in Other assets.

Deferred Policy Acquisition C_2

Deferred Policy Acquisition Costs (Tables)	9 Months Ended
	Sep. 30, 2024
Insurance [Abstract]
Deferred Policy Acquisition Costs	The following tables provide the balances of and changes in deferred policy acquisition costs for the Company’s Traditional business for the nine months ended September 30, 2024 and 2023 (dollars in millions): For the nine months ended September 30, 2024: U.S. and Latin America – Traditional Canada – Traditional Europe, Middle East and Africa – Traditional Asia Pacific – Traditional Balance, beginning of year $ 2,191 $ 173 $ 347 $ 1,098 Capitalization 899 6 56 117 Amortization expense (121) (8) (36) (44) Foreign currency translation (2) (4) 12 (1) Balance, end of period $ 2,967 $ 167 $ 379 $ 1,170 For the nine months ended September 30, 2023: U.S. and Latin America – Traditional Canada – Traditional Europe, Middle East and Africa – Traditional Asia Pacific – Traditional Balance, beginning of year $ 2,087 $ 171 $ 294 $ 1,043 Capitalization 183 7 75 94 Amortization expense (111) (9) (28) (44) Foreign currency translation 1 — (10) (24) Balance, end of period $ 2,160 $ 169 $ 331 $ 1,069 The following tables provide the balances of and changes in deferred policy acquisition costs for the Company’s Financial Solutions business for the nine months ended September 30, 2024 and 2023 (dollars in millions): For the nine months ended September 30, 2024: U.S. and Latin America – Financial Solutions Canada – Financial Solutions Europe, Middle East and Africa – Financial Solutions Asia Pacific – Financial Solutions Balance, beginning of year $ 552 $ — $ — $ 250 Capitalization 1 — — 67 Amortization expense (44) — — (33) Other (14) — — — Foreign currency translation — — — 1 Balance, end of period $ 495 $ — $ — $ 285 For the nine months ended September 30, 2023: U.S. and Latin America – Financial Solutions Canada – Financial Solutions Europe, Middle East and Africa – Financial Solutions Asia Pacific – Financial Solutions Balance, beginning of year $ 341 $ — $ — $ 188 Capitalization — — — 89 Amortization expense (32) — — (24) Foreign currency translation — — — (6) Balance, end of period $ 309 $ — $ — $ 247 The reconciliation of deferred policy acquisition costs to the condensed consolidated balance sheets as of September 30, 2024 and 2023 is as follows (dollars in millions): September 30, 2024 2023 Deferred policy acquisition costs included in the rollforwards: Traditional: U.S. and Latin America $ 2,967 $ 2,160 Canada 167 169 Europe, Middle East and Africa 379 331 Asia Pacific 1,170 1,069 Financial Solutions: U.S. and Latin America 495 309 Canada — — Europe, Middle East and Africa — — Asia Pacific 285 247 Other long-duration business: Corporate and Other 14 4 Total deferred policy acquisition costs $ 5,477 $ 4,289

Reinsurance (Tables)

Reinsurance (Tables)	9 Months Ended
	Sep. 30, 2024
Retrocession Arrangements And Reinsurance Ceded Receivables [Abstract]
Schedule Of Assets Held In Support Of Reserves Associated With Coinsurance With Funds Withheld Agreement	The following assets were held in support of the Company’s funds withheld arrangements and are reported in the line items shown in the condensed consolidated balance sheets as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Fixed maturity securities available-for-sale $ 2,390 $ 2,442 Equity securities 2 2 Mortgage loans 452 451 Funds withheld at interest 1,486 1,545 Real estate joint ventures 48 35 Short-term investments and cash and cash equivalents 58 30 Accrued investment income 32 28 Net other assets — 1 Net assets $ 4,468 $ 4,534

Investments (Tables)

Investments (Tables)	9 Months Ended
	Sep. 30, 2024
Investments [Abstract]
Debt Securities, Available-for-sale	The following tables provide information relating to investments in fixed maturity securities by type as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024: Amortized Cost Allowance for Credit Losses Unrealized Gains Unrealized Losses Estimated Fair Value % of Total Available-for-sale: Corporate $ 53,327 $ 104 $ 1,058 $ 3,194 $ 51,087 65.4 % Canadian government 4,517 — 494 41 4,970 6.4 Japanese government 6,103 — 3 836 5,270 6.7 ABS 5,521 15 44 177 5,373 6.9 CMBS 2,327 1 27 115 2,238 2.9 RMBS 1,374 — 20 76 1,318 1.7 U.S. government 1,897 — 18 212 1,703 2.1 State and political subdivisions 895 — 7 81 821 1.1 Other foreign government 5,645 — 84 360 5,369 6.8 Total fixed maturity securities $ 81,606 $ 120 $ 1,755 $ 5,092 $ 78,149 100.0 % December 31, 2023: Amortized Cost Allowance for Credit Losses Unrealized Gains Unrealized Losses Estimated Fair Value % of Total Available-for-sale: Corporate $ 42,014 $ 62 $ 554 $ 3,751 $ 38,755 64.1 % Canadian government 3,477 — 473 33 3,917 6.5 Japanese government 3,630 — 3 502 3,131 5.2 ABS 4,661 12 19 239 4,429 7.3 CMBS 1,969 1 7 202 1,773 2.9 RMBS 1,173 — 8 102 1,079 1.8 U.S. government 2,725 — 9 214 2,520 4.2 State and political subdivisions 1,236 — 7 129 1,114 1.8 Other foreign government 4,092 — 45 388 3,749 6.2 Total fixed maturity securities $ 64,977 $ 75 $ 1,125 $ 5,560 $ 60,467 100.0 %
Concentration Risk Disclosure [Text Block]	The Company’s exposure to concentrations of credit risk from single issuers, including certain agencies, greater than 10% of the Company’s equity are disclosed below, as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Amortized Estimated Amortized Estimated Fixed maturity securities guaranteed or issued by: Japanese government $ 6,103 $ 5,270 $ 3,630 $ 3,131 U.S. government 1,897 1,703 2,725 2,520 Canadian province of Quebec 1,591 1,843 1,467 1,748 Canadian province of Ontario 1,180 1,291 1,019 1,125
Investments Classified By Contractual Maturity Date	The amortized cost and estimated fair value of fixed maturity securities classified as available-for-sale as of September 30, 2024, are shown by contractual maturity in the table below (dollars in millions). Actual maturities can differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Structured securities are shown separately in the table below, as they are not due at a single maturity date. Amortized Cost Estimated Fair Value Available-for-sale: Due in one year or less $ 1,699 $ 1,701 Due after one year through five years 11,881 11,829 Due after five years through ten years 13,649 13,480 Due after ten years 45,155 42,210 Structured securities 9,222 8,929 Total $ 81,606 $ 78,149
Fixed Maturity Holdings Industry Types Weighted Average Credit Ratings [Table Text Block]	The tables below show the major sectors of the Company’s corporate fixed maturity holdings as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024: Amortized Cost Estimated Fair Value % of Total Finance $ 17,482 $ 16,641 32.6 % Industrial 27,697 26,682 52.2 Utility 8,148 7,764 15.2 Total $ 53,327 $ 51,087 100.0 % December 31, 2023: Amortized Cost Estimated Fair Value % of Total Finance $ 15,052 $ 13,789 35.6 % Industrial 21,413 19,935 51.4 Utility 5,549 5,031 13.0 Total $ 42,014 $ 38,755 100.0 %
Financing Receivable, Allowance for Credit Loss [Table Text Block]	The following tables present the rollforward of the allowance for credit losses in fixed maturity securities by type for the three and nine months ended September 30, 2024 and 2023 (dollars in millions) : Corporate ABS CMBS Total For the three months ended September 30, 2024: Balance, beginning of period $ 95 $ 15 $ 1 $ 111 Credit losses recognized on securities for which credit losses were not previously recorded 10 — — 10 Reductions for securities sold during the period — — — — Additional increases or decreases for credit losses on securities that had an allowance recorded in a previous period (1) — — (1) Write-offs charged against the allowance — — — — Balance, end of period $ 104 $ 15 $ 1 $ 120 For the three months ended September 30, 2023: Balance, beginning of period $ 62 $ 12 $ 1 $ 75 Additional increases or decreases for credit losses on securities that had an allowance recorded in a previous period (1) — — (1) Write-offs charged against the allowance (6) — — (6) Balance, end of period $ 55 $ 12 $ 1 $ 68 Corporate ABS CMBS Total For the nine months ended September 30, 2024: Balance, beginning of period $ 62 $ 12 $ 1 $ 75 Credit losses recognized on securities for which credit losses were not previously recorded 42 — — 42 Reductions for securities sold during the period (9) — — (9) Additional increases or decreases for credit losses on securities that had an allowance recorded in a previous period 8 3 — 11 Write-offs charged against the allowance 1 — — 1 Balance, end of period $ 104 $ 15 $ 1 $ 120 For the nine months ended September 30, 2023: Balance, beginning of period $ 27 $ 10 $ — $ 37 Credit losses recognized on securities for which credit losses were not previously recorded 44 — 1 45 Reductions for securities sold during the period (10) — — (10) Additional increases or decreases for credit losses on securities that had an allowance recorded in a previous period — 2 — 2 Write-offs charged against the allowance (6) — — (6) Balance, end of period $ 55 $ 12 $ 1 $ 68
Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value	Less than 12 months 12 months or greater Total September 30, 2024: Estimated Fair Value Gross Unrealized Losses Estimated Fair Value Gross Unrealized Losses Estimated Fair Value Gross Unrealized Losses Investment grade securities: Corporate $ 3,871 $ 71 $ 21,471 $ 3,036 $ 25,342 $ 3,107 Canadian government 159 6 432 35 591 41 Japanese government 2,408 159 2,489 677 4,897 836 ABS 1,054 22 2,039 148 3,093 170 CMBS 188 12 1,156 96 1,344 108 RMBS — — 636 76 636 76 U.S. government 264 2 711 210 975 212 State and political subdivisions — — 532 81 532 81 Other foreign government 770 10 2,009 302 2,779 312 Total investment grade securities 8,714 282 31,475 4,661 40,189 4,943 Below investment grade securities: Corporate 392 14 413 62 805 76 ABS 13 2 44 5 57 7 CMBS — — — — — — Other foreign government — — 190 48 190 48 Total below investment grade securities 405 16 647 115 1,052 131 Total fixed maturity securities $ 9,119 $ 298 $ 32,122 $ 4,776 $ 41,241 $ 5,074 Less than 12 months 12 months or greater Total December 31, 2023: Estimated Fair Value Gross Unrealized Losses Estimated Fair Value Gross Unrealized Losses Estimated Fair Value Gross Unrealized Losses Investment grade securities: Corporate $ 2,134 $ 70 $ 24,207 $ 3,524 $ 26,341 $ 3,594 Canadian government — — 459 33 459 33 Japanese government 876 50 2,193 452 3,069 502 ABS 336 5 3,025 223 3,361 228 CMBS 160 5 1,328 190 1,488 195 RMBS 115 3 681 99 796 102 U.S. government 614 10 717 204 1,331 214 State and political subdivisions 73 1 864 128 937 129 Other foreign government 254 3 2,290 333 2,544 336 Total investment grade securities 4,562 147 35,764 5,186 40,326 5,333 Below investment grade securities: Corporate 295 36 649 121 944 157 ABS — — 68 10 68 10 CMBS — — 4 1 4 1 Other foreign government — — 193 52 193 52 Total below investment grade securities 295 36 914 184 1,209 220 Total fixed maturity securities $ 4,857 $ 183 $ 36,678 $ 5,370 $ 41,535 $ 5,553
Investment Income	Major categories of net investment income consist of the following (dollars in millions): Three months ended September 30, Nine months ended September 30, 2024 2023 2024 2023 Fixed maturity securities available-for-sale $ 933 $ 707 $ 2,574 $ 2,035 Equity securities 2 2 5 5 Mortgage loans 103 84 290 238 Policy loans 14 13 42 39 Funds withheld at interest 88 88 253 240 Limited partnerships and real estate joint ventures 46 41 74 114 Short-term investments and cash and cash equivalents 48 28 126 71 Other invested assets (6) 2 (5) 14 Investment income 1,228 965 3,359 2,756 Investment expense (40) (43) (128) (121) Net investment income $ 1,188 $ 922 $ 3,231 $ 2,635
Gain Loss On Investments	Investment related gains (losses), net consist of the following (dollars in millions): Three months ended September 30, Nine months ended September 30, 2024 2023 2024 2023 Fixed maturity securities available-for-sale: Change in allowance for credit losses $ (9) $ 7 $ (45) $ (31) Impairments on fixed maturity securities — — (1) (1) Realized gains on investment activity 72 12 172 54 Realized losses on investment activity (113) (61) (477) (173) Net gains (losses) on equity securities 6 (2) 5 (4) Change in mortgage loan allowance for credit losses (12) (17) (20) (23) Limited partnerships and real estate joint venture impairment losses — — (8) — Change in fair value of certain limited partnership investments 17 25 18 32 Net gains (losses) on freestanding derivatives 87 (98) (131) (222) Net gains (losses) on embedded derivatives (112) 1 (9) 18 Other, net (14) 7 (2) 24 Total investment related gains (losses), net $ (78) $ (126) $ (498) $ (326)
Invested Assets On Deposit	The following table includes invested assets on deposit, invested assets pledged and received as collateral, assets in trust held to satisfy collateral requirements and FHLB common stock restricted as to sale as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Amortized Estimated Amortized Estimated Invested assets on deposit (regulatory deposits) $ 12 $ 10 $ 12 $ 9 Invested assets pledged as collateral 891 814 572 517 Invested assets received as collateral n/a 2,419 n/a 1,827 Assets in trust held to satisfy collateral requirements 47,251 45,545 32,758 30,359 FHLB common stock restricted as to sale 72 72 63 63
Schedule of Repurchase Agreements [Table Text Block]	The following table provides the estimated fair value of securities relating to securities lending and repurchase/reverse repurchase agreements as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Securities Loaned, Pledged, or Sold (1) Securities Borrowed or Collateral Received from Counterparties (2) Cash Collateral Received from Counterparties (3) Securities Loaned, Pledged, or Sold (1) Securities Borrowed or Collateral Received from Counterparties (2) Cash Collateral Received from Counterparties (3) Securities lending transactions $ 782 $ 1,042 $ — $ 732 $ 1,013 $ — Repurchase/reverse repurchase transactions 1,923 930 1,044 1,333 517 820 (1) Securities loaned or pledged through securities lending transactions or sold to counterparties through repurchase transactions are included within fixed maturity securities. Collateral associated with certain securities lending transactions is not included within this table as the collateral pledged to the counterparty is the right to reinsurance treaty cash flows. Certain securities lending transactions do not require collateral. (2) Securities borrowed or received as collateral through securities lending transactions or purchased from counterparties through reverse repurchase transactions are not reflected on the condensed consolidated balance sheets. (3) A payable for the cash received by the Company is included within other liabilities.
Schedule of Underlying Assets of Repurchase Agreements when Amount of Repurchase Agreements Exceeds 10 Percent of Assets [Table Text Block]	The following tables present the estimated fair value of securities by the remaining contractual maturity of the Company’s securities lending and repurchase agreements as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Remaining Contractual Maturity of the Agreements Remaining Contractual Maturity of the Agreements Overnight and Continuous Up to 30 Days 30 – 90 Days Greater than 90 Days Total Overnight and Continuous Up to 30 Days 30 – 90 Days Greater than 90 Days Total Securities lending transactions: Corporate $ — $ 77 $ 142 $ 199 $ 418 $ — $ — $ 94 $ 41 $ 135 Japanese government — — — 251 251 — 88 — 480 568 ABS — — 12 3 15 — — — — — CMBS — — 48 — 48 — — — — — RMBS — — 14 — 14 — — — — — U.S. government — — — 9 9 — — — — — State and political subdivisions — — — 6 6 — — — 11 11 Other foreign government — — 11 10 21 — — 13 5 18 Total — 77 227 478 782 — 88 107 537 732 Repurchase/reverse repurchase transactions: Corporate — — — 554 554 — — — 553 553 Japanese government — — — 393 393 — — — 158 158 ABS — — — 299 299 — — — 229 229 CMBS — — — 254 254 — — — 221 221 RMBS — — — 52 52 — — — 52 52 U.S. government — — — 268 268 — — — 14 14 Other foreign government — — — 103 103 — — — 106 106 Total — — — 1,923 1,923 — — — 1,333 1,333 Total transactions $ — $ 77 $ 227 $ 2,401 $ 2,705 $ — $ 88 $ 107 $ 1,870 $ 2,065
Disclosure Of Real Estate Holdings By Property Type [Table Text Block]	The following table presents the distribution of the Company’s recorded investment in mortgage loans by property type as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Property type: Carrying Value % of Total Carrying Value % of Total Office $ 1,709 20.1 % $ 1,700 22.8 % Retail 2,748 32.4 2,437 32.7 Industrial 2,503 29.4 1,947 26.1 Apartment 1,076 12.7 913 12.2 Hotel 417 4.9 413 5.5 Other commercial 40 0.5 49 0.7 Recorded investment 8,493 100.0 % 7,459 100.0 % Unamortized balance of loan origination fees and expenses (18) (15) Allowance for credit losses (87) (67) Total mortgage loans $ 8,388 $ 7,377
Mortgage Loans Classified By Contractual Maturity Date [Table Text Block]	The following table presents the maturities of the Company’s recorded investment in mortgage loans as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Recorded % of Total Recorded % of Total Due within five years $ 3,944 46.4 % $ 3,228 43.3 % Due after five years through ten years 3,643 42.9 3,334 44.7 Due after ten years 906 10.7 897 12.0 Total $ 8,493 100.0 % $ 7,459 100.0 %
Mortgage Loan Internal Credit Risk Grade [Table Text Block]	The following tables set forth certain key credit quality indicators of the Company’s recorded investment in mortgage loans as of September 30, 2024 and December 31, 2023 (dollars in millions): Recorded Investment Debt Service Ratios Construction loans >1.20x 1.00x – 1.20x <1.00x Total % of Total September 30, 2024: Loan-to-Value Ratio 0% – 59.99% $ 4,327 $ 202 $ 83 $ 13 $ 4,625 54.5 % 60% – 69.99% 2,148 237 63 45 2,493 29.4 70% – 79.99% 737 102 36 — 875 10.2 80% or greater 339 55 106 — 500 5.9 Total $ 7,551 $ 596 $ 288 $ 58 $ 8,493 100.0 % Recorded Investment Debt Service Ratios Construction loans >1.20x 1.00x – 1.20x <1.00x Total % of Total December 31, 2023: Loan-to-Value Ratio 0% – 59.99% $ 3,672 $ 272 $ 27 $ 46 $ 4,017 53.9 % 60% – 69.99% 1,947 154 44 — 2,145 28.8 70% – 79.99% 843 52 34 — 929 12.4 80% or greater 198 70 100 — 368 4.9 Total $ 6,660 $ 548 $ 205 $ 46 $ 7,459 100.0 % The following table sets forth credit quality grades by year of origination of the Company’s recorded investment in mortgage loans as of September 30, 2024 and December 31, 2023 (dollars in millions): Recorded Investment Year of Origination 2024 2023 2022 2021 2020 Prior Total September 30, 2024: Internal credit quality grade: High investment grade $ 352 $ 473 $ 641 $ 613 $ 268 $ 2,054 $ 4,401 Investment grade 730 752 728 442 239 803 3,694 Average — 12 — — 18 233 263 Watch list — — — — — 112 112 In or near default — — — — — 23 23 Total $ 1,082 $ 1,237 $ 1,369 $ 1,055 $ 525 $ 3,225 $ 8,493 Recorded Investment Year of Origination 2023 2022 2021 2020 2019 Prior Total December 31, 2023: Internal credit quality grade: High investment grade $ 475 $ 635 $ 573 $ 304 $ 491 $ 1,734 $ 4,212 Investment grade 754 668 384 245 313 564 2,928 Average 12 — — 18 63 203 296 Watch list — — — — — 16 16 In or near default — — — — — 7 7 Total $ 1,241 $ 1,303 $ 957 $ 567 $ 867 $ 2,524 $ 7,459
Financing Receivable, Past Due [Table Text Block]	The following table presents the current and past due composition of the Company’s recorded investment in mortgage loans as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Current $ 8,441 $ 7,431 31 – 60 days past due 23 28 61 – 90 days past due 6 — Greater than 90 days past due 23 — Total $ 8,493 $ 7,459
Allowance For Mortgage Loan And Lease Losses Provision For Loss Net	The following table presents information regarding the Company’s allowance for credit losses for mortgage loans for the three and nine months ended September 30, 2024 and 2023 (dollars in millions): Three months ended September 30, Nine months ended September 30, 2024 2023 2024 2023 Balance, beginning of period $ 75 $ 57 $ 67 $ 51 Change in allowance for credit losses 12 17 20 23 Balance, end of period $ 87 $ 74 $ 87 $ 74
Limited Partnership And Joint Ventures Table Text Block	Limited Partnerships and Real Estate Joint Ventures The carrying values of limited partnerships and real estate joint ventures as of September 30, 2024 and December 31, 2023 are as follows (dollars in millions): September 30, 2024 December 31, 2023 Limited partnerships – equity method $ 1,029 $ 925 Limited partnerships – fair value 920 856 Limited partnerships – cost method 55 71 Real estate joint ventures 968 783 Total limited partnerships and real estate joint ventures $ 2,972 $ 2,635
Schedule Of Other Invested Assets [Table Text Block]	The carrying values of other invested assets as of September 30, 2024 and December 31, 2023 are as follows (dollars in millions): September 30, 2024 December 31, 2023 Lifetime mortgages $ 1,026 $ 944 Derivatives 199 97 FHLB common stock 72 63 Other 64 67 Total other invested assets $ 1,361 $ 1,171

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule Of Derivative Instruments In Statement Of Financial Position Fair Value	The following table presents the notional amounts and gross fair value of derivative instruments prior to taking into account the netting effects of master netting agreements as of September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Primary Underlying Risk Notional Carrying Value / Fair Value Notional Carrying Value / Fair Value Amount Assets Liabilities Amount Assets Liabilities Derivatives not designated as hedging instruments: Interest rate swaps Interest rate $ 1,796 $ 6 $ 4 $ 1,609 $ 4 $ 3 Interest rate options Interest rate 2,266 — — 5,555 7 — Total return swaps Interest rate 1,075 21 17 500 24 — Interest rate futures Interest rate — — — 97 — — Foreign currency swaps Foreign currency 150 35 — 150 27 — Foreign currency forwards Foreign currency 1,142 55 1 809 36 — Foreign currency options Foreign currency 350 2 — — — — Equity options Equity 141 2 — 253 8 — Equity futures Equity 225 — — 255 — — Credit default swaps Credit 2,726 5 3 1,475 5 1 CPI swaps CPI 445 7 3 468 11 3 Synthetic GICs Interest rate 15,395 — — 16,135 — — Embedded derivatives in: Modco or funds withheld arrangements — 274 454 — 356 527 Indexed annuity products — — 385 — — 415 Total non-designated derivatives 25,711 407 867 27,306 478 949 Derivatives designated as hedging instruments: Interest rate swaps Interest rate 3,269 89 78 1,770 9 86 Forward bond purchase commitments Interest rate 1,673 7 101 1,076 11 80 Foreign currency swaps Foreign currency 2,026 37 71 809 7 64 Foreign currency forwards Foreign currency 1,315 4 9 1,143 5 17 Total hedging derivatives 8,283 137 259 4,798 32 247 Total derivatives $ 33,994 $ 544 $ 1,126 $ 32,104 $ 510 $ 1,196
Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]	The gain or loss on the hedged item attributable to a change in interest rates or foreign currency and the offsetting gain or loss on the related interest rate or foreign currency swaps for the three and nine months ended September 30, 2024 and 2023 are as follows (dollars in millions): Derivative Type Hedged Item Investment Related Claims and Other Policy Benefits Interest Credited Derivatives Hedged Items Derivatives Hedged Items Derivatives Hedged Items For the three months ended September 30, 2024: Foreign currency swaps Foreign-denominated fixed maturity securities $ — $ — $ — $ — $ — $ — Interest rate swaps Future policy benefits — — 31 (34) — — Interest rate swaps Interest-sensitive contract liabilities — — — — 42 (45) For the three months ended September 30, 2023: Foreign currency swaps Foreign-denominated fixed maturity securities (4) 3 — — — — Interest rate swaps Interest-sensitive contract liabilities — — — — (2) 2 For the nine months ended September 30, 2024: Foreign currency swaps Foreign-denominated fixed maturity securities 2 (4) — — — — Interest rate swaps Future policy benefits — — 27 (32) — — Interest rate swaps Interest-sensitive contract liabilities — — — — 37 (43) For the nine months ended September 30, 2023: Foreign currency swaps Foreign-denominated fixed maturity securities (7) 5 — — — — Interest rate swaps Interest-sensitive contract liabilities — — — — (2) 2 The following table presents the balance sheet classification, carrying amount and cumulative fair value hedging adjustments for items designated and qualifying as hedged items in fair value hedges (dollars in millions): Hedged Item Carrying Amount of Cumulative Fair Value Hedging Adjustments Included in the Carrying Amount of Hedged Assets / (Liabilities) Discontinued Fair Value Hedge Adjustments Included in the Cumulative Adjustments September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 Foreign-denominated fixed maturity securities $ — $ 89 n/a n/a n/a n/a Future policy benefits (672) — (32) — (25) — Interest-sensitive contract liabilities (970) (25) (43) (1) (23) 1
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The following table presents the cash flow hedge components of AOCI, before income taxes, and where the gain or loss related to cash flow hedges is recognized on the condensed consolidated statements of income for the three and nine months ended September 30, 2024 and 2023 (dollars in millions): Three months ended September 30, 2024 2023 Balance, beginning of period $ (413) $ (228) Gains (losses), net deferred in other comprehensive income (loss) 167 (128) Amounts reclassified to net investment income 20 8 Amounts reclassified to interest expense (3) (3) Balance, end of period $ (229) $ (351) Nine months ended September 30, 2024 2023 Balance, beginning of period $ (218) $ (205) Gains (losses), net deferred in other comprehensive income (loss) (44) (154) Amounts reclassified to net investment income 42 15 Amounts reclassified to interest expense (9) (7) Balance, end of period $ (229) $ (351)
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]	The following table presents the effect of derivatives in cash flow hedging relationships on the condensed consolidated statements of income for the three and nine months ended September 30, 2024 and 2023 (dollars in millions): Derivative Type Gains (Losses) Gains (Losses) Reclassified into Income from Net Investment Income Interest Expense For the three months ended September 30, 2024: Interest rate $ 57 $ (3) $ 3 Foreign currency 110 (17) — Total $ 167 $ (20) $ 3 For the three months ended September 30, 2023: Interest rate $ (113) $ (4) $ 3 Foreign currency (15) (4) — Total $ (128) $ (8) $ 3 For the nine months ended September 30, 2024: Interest rate $ (33) $ (9) $ 9 Foreign currency (11) (33) — Total $ (44) $ (42) $ 9 For the nine months ended September 30, 2023: Interest rate $ (107) $ (4) $ 7 Foreign currency (47) (11) — Total $ (154) $ (15) $ 7
Schedule of Net Investment Hedges, Statements of Financial Performance and Financial Position, Location [Table Text Block]	The following table illustrates the Company’s net investments in foreign operations (“NIFO”) hedges and the gains (losses) deferred in OCI for the three and nine months ended September 30, 2024 and 2023 (dollars in millions): Derivative Gains (Losses) Deferred in OCI Three months ended September 30, Nine months ended September 30, Derivative Type 2024 2023 2024 2023 Foreign currency swaps $ — $ — $ — $ — Foreign currency forwards (12) 29 24 8 Total $ (12) $ 29 $ 24 $ 8
Derivatives Not Designated as Hedging Instruments [Table Text Block]	A summary of the effect of non-qualifying derivatives, including embedded derivatives, on the Company’s condensed consolidated statements of income for the three and nine months ended September 30, 2024 and 2023 is as follows (dollars in millions): Gains (Losses) for the three months ended Type of Non-qualifying Derivative Income Statement 2024 2023 Interest rate swaps Investment related gains (losses), net $ 13 $ (64) Interest rate options Investment related gains (losses), net (3) 16 Total return swaps Investment related gains (losses), net 7 (8) Interest rate futures Investment related gains (losses), net — — Foreign currency swaps Investment related gains (losses), net (7) 8 Foreign currency forwards Investment related gains (losses), net 77 (37) Foreign currency options Investment related gains (losses), net 2 — Equity options Investment related gains (losses), net 1 3 Equity futures Investment related gains (losses), net (12) 11 Credit default swaps Investment related gains (losses), net 10 (26) CPI swaps Investment related gains (losses), net (1) — Subtotal 87 (97) Embedded derivatives in: Modco or funds withheld arrangements Investment related gains (losses), net (112) 1 Indexed annuity products Interest credited (15) 3 Total non-qualifying derivatives $ (40) $ (93) Gains (Losses) for the nine months ended Type of Non-qualifying Derivative Income Statement 2024 2023 Interest rate swaps Investment related gains (losses), net $ (31) $ (74) Interest rate options Investment related gains (losses), net (6) (10) Total return swaps Investment related gains (losses), net — — Interest rate futures Investment related gains (losses), net 2 2 Foreign currency swaps Investment related gains (losses), net 15 20 Foreign currency forwards Investment related gains (losses), net (85) (130) Foreign currency options Investment related gains (losses), net (1) — Equity options Investment related gains (losses), net (4) (22) Equity futures Investment related gains (losses), net (31) (8) Credit default swaps Investment related gains (losses), net 14 (5) CPI swaps Investment related gains (losses), net (2) 7 Subtotal (129) (220) Embedded derivatives in: Modco or funds withheld arrangements Investment related gains (losses), net (9) 18 Indexed annuity products Interest credited (27) 14 Total non-qualifying derivatives $ (165) $ (188)
Disclosure Of Credit Derivatives	The following table presents the estimated fair value, maximum amount of future payments and weighted average years to maturity of credit default swaps sold by the Company at September 30, 2024 and December 31, 2023 (dollars in millions): September 30, 2024 December 31, 2023 Rating Agency Designation of Referenced Credit Obligations (1) Estimated Fair Maximum Amount of Future Payments under Credit Default Swaps (2) Weighted Average Years to Maturity (3) Estimated Fair Maximum Amount of Future Payments under Credit Default Swaps (2) Weighted Average Years to Maturity (3) AAA/AA/A Single name credit default swaps $ (1) $ 410 17.8 $ 2 $ 420 18.1 BBB Single name credit default swaps 3 145 2.3 4 165 2.8 Credit default swaps referencing indices — 2,156 4.9 (1) 880 5.0 Subtotal 3 2,301 4.7 3 1,045 4.7 BB Single name credit default swaps — 5 1.7 (1) 10 2.2 B Single name credit default swaps — 10 1.5 — — 0.0 Total $ 2 $ 2,726 6.7 $ 4 $ 1,475 8.5 (1) The rating agency designations are based on ratings from Standard and Poor’s (“S&P”). (2) Assumes the value of the referenced credit obligations is zero. (3) The weighted average years to maturity of the credit default swaps is calculated based on weighted average notional amounts.
Offsetting Assets [Table Text Block]	The following table provides information relating to the netting of the Company’s derivative instruments as of September 30, 2024 and December 31, 2023 (dollars in millions): Gross Amounts Gross Amounts Net Amounts Financial Instruments / Collateral (1) Net Amount September 30, 2024: Derivative assets $ 270 $ (71) $ 199 $ (199) $ — Derivative liabilities 287 (71) 216 (216) — December 31, 2023: Derivative assets 154 (57) 97 (97) — Derivative liabilities 254 (57) 197 (197) — (1) Includes initial margin posted to a central clearing partner for financial instruments and excludes the excess of collateral received/pledged from/to the counterparty.
Offsetting Liabilities [Table Text Block]	The following table provides information relating to the netting of the Company’s derivative instruments as of September 30, 2024 and December 31, 2023 (dollars in millions): Gross Amounts Gross Amounts Net Amounts Financial Instruments / Collateral (1) Net Amount September 30, 2024: Derivative assets $ 270 $ (71) $ 199 $ (199) $ — Derivative liabilities 287 (71) 216 (216) — December 31, 2023: Derivative assets 154 (57) 97 (97) — Derivative liabilities 254 (57) 197 (197) — (1) Includes initial margin posted to a central clearing partner for financial instruments and excludes the excess of collateral received/pledged from/to the counterparty.

Fair Value of Assets and Liab_2

Fair Value of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Schedule Of Fair Value Assets and Liabilities Measured on Recurring Basis Table Text Block	Assets and liabilities measured at fair value on a recurring basis as of September 30, 2024 and December 31, 2023 are summarized below (dollars in millions): September 30, 2024: Fair Value Measurements Using: Total Level 1 Level 2 Level 3 Assets: (1) Fixed maturity securities available-for-sale: Corporate $ 51,087 $ — $ 44,944 $ 6,143 Canadian government 4,970 — 4,970 — Japanese government 5,270 — 5,270 — ABS 5,373 — 3,851 1,522 CMBS 2,238 — 2,204 34 RMBS 1,318 — 1,318 — U.S. government 1,703 1,608 89 6 State and political subdivisions 821 — 821 — Other foreign government 5,369 — 5,335 34 Total fixed maturity securities available-for-sale 78,149 1,608 68,802 7,739 Equity securities 155 73 — 82 Funds withheld at interest – embedded derivatives (231) — — (231) Funds withheld at interest 60 — — 60 Cash equivalents 3,530 3,530 — — Short-term investments 345 160 174 11 Other invested assets: Derivatives 199 — 199 — Other 19 — 19 — Total other invested assets 218 — 218 — Total $ 82,226 $ 5,371 $ 69,194 $ 7,661 Liabilities: Interest-sensitive contract liabilities – embedded derivatives $ 385 $ — $ — $ 385 Funds withheld at interest – embedded derivatives (51) — — (51) Derivatives – other liabilities 216 — 216 — Total $ 550 $ — $ 216 $ 334 (1) Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of September 30, 2024, the fair value of such investments was $921 million. December 31, 2023: Fair Value Measurements Using: Total Level 1 Level 2 Level 3 Assets: (1) Fixed maturity securities available-for-sale: Corporate $ 38,755 $ — $ 33,822 $ 4,933 Canadian government 3,917 — 3,917 — Japanese government 3,131 — 3,131 — ABS 4,429 — 3,064 1,365 CMBS 1,773 — 1,714 59 RMBS 1,079 — 1,078 1 U.S. government 2,520 2,426 87 7 State and political subdivisions 1,114 — 1,095 19 Other foreign government 3,749 — 3,714 35 Total fixed maturity securities available-for-sale 60,467 2,426 51,622 6,419 Equity securities 139 69 — 70 Funds withheld at interest – embedded derivatives (377) — — (377) Funds withheld at interest 54 — — 54 Cash equivalents 1,335 1,322 13 — Short-term investments 187 90 95 2 Other invested assets: Derivatives 97 — 97 — Other 22 — 22 — Total other invested assets 119 — 119 — Total $ 61,924 $ 3,907 $ 51,849 $ 6,168 Liabilities: Interest-sensitive contract liabilities – embedded derivatives $ 415 $ — $ — $ 415 Funds withheld at interest – embedded derivatives (206) — — (206) Derivatives – other liabilities 197 — 197 — Total $ 406 $ — $ 197 $ 209 (1) Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2023, the fair value of such investments was $856 million.
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]	The following table presents quantitative information about significant unobservable inputs used in Level 3 fair value measurements that are developed internally by the Company as of September 30, 2024 and December 31, 2023 (dollars in millions): Estimated Fair Value Valuation Technique Unobservable Input Range (Weighted Average) September 30, 2024 December 31, 2023 September 30, 2024 December 31, 2023 Assets: Corporate $ 115 $ 91 Market comparable securities Liquidity premium 2-2% (2%) 0-2% (1%) EBITDA Multiple 5.7x-11.0x (8.7x) 6.0x-8.5x (7.1x) ABS 285 268 Market comparable securities Liquidity premium 0-9% (2%) 0-18% (2%) U.S. government 6 7 Market comparable securities Liquidity premium 0-1% (1%) 0-1% (1%) Equity securities 32 31 Market comparable securities Liquidity premium 4% 4% EBITDA Multiple 8.4x-12.8x (10.9x) 8.4x-12.3x (10.1x) Short-Term Investments 1 — Market comparable securities EBITDA Multiple 6.2x — Funds withheld at interest – embedded derivatives 14 (50) Total return swap Mortality 0-100% (3%) 0-100% (3%) Lapse 0-35% (16%) 0-35% (18%) Withdrawal 0-10% (4%) 0-5% (4%) CVA 0-5% (0%) 0-5% (0%) Crediting rate 1-4% (2%) 1-4% (2%) Liabilities: Interest-sensitive contract liabilities – embedded derivatives – indexed annuities 385 415 Discounted cash flow Mortality 0-100% (3%) 0-100% (3%) Lapse 0-35% (15%) 0-35% (17%) Withdrawal 0-10% (4%) 0-5% (4%) Option budget projection 1-4% (2%) 1-4% (2%)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	For the three months ended September 30, 2024: Fixed maturity securities available-for-sale Funds withheld at interest –embedded derivatives, net (1) Funds Interest-sensitive contract Corporate Foreign govt Structured securities U.S. and local govt Equity securities Cash equivalents Short-term investments Fair value, beginning of period $ 5,501 $ 31 $ 1,497 $ 27 $ 74 $ — $ 15 $ (68) $ 55 $ (386) Total gains/losses (realized/unrealized) Included in earnings, net: Net investment income 4 — — — — — — — 3 — Investment related gains (losses), net (8) — — — 3 — (1) (112) — — Interest credited — — — — — — — — (15) Included in other comprehensive income (loss) 149 3 26 — — — — — 3 — Purchases (2) 809 — 99 — 6 — (3) — 1 (7) Sales (2) (96) — — — (1) — — — — — Settlements (2) (196) — (101) — — — — — (2) 23 Transfers into Level 3 — — 36 — — — — — — — Transfers out of Level 3 (20) — (1) (21) — — — — — — Fair value, end of period $ 6,143 $ 34 $ 1,556 $ 6 $ 82 $ — $ 11 $ (180) $ 60 $ (385) Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period Included in earnings, net: Net investment income $ 3 $ — $ — $ — $ — $ — $ — $ — $ 3 $ — Investment related gains (losses), net (11) — — — 2 — (1) (112) — — Interest credited — — — — — — — — — (39) Included in other comprehensive income (loss) 150 3 26 — — — — — 3 — (1) Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward. (2) The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period. For the nine months ended September 30, 2024: Fixed maturity securities available-for-sale Funds withheld at interest –embedded derivatives, net (1) Funds Interest-sensitive contract Corporate Foreign govt Structured securities U.S. and local govt Equity securities Cash equivalents Short-term investments Fair value, beginning of period $ 4,933 $ 35 $ 1,425 $ 26 $ 70 $ — $ 2 $ (171) $ 54 $ (415) Total gains/losses (realized/unrealized) Included in earnings, net: Net investment income 10 — 3 — — — — — 5 — Investment related gains (losses), net (56) — (1) — (4) — (1) (9) — — Interest credited — — — — — — — — — (27) Included in other comprehensive income (loss) 132 (1) 30 — — — — — 2 — Purchases (2) 2,001 — 287 — 17 — 12 — 2 (18) Sales (2) (278) — (23) — (1) — (1) — — — Settlements (2) (546) — (260) (1) — — — — (3) 75 Transfers into Level 3 1 — 117 2 — — — — — — Transfers out of Level 3 (54) — (22) (21) — — (1) — — — Fair value, end of period $ 6,143 $ 34 $ 1,556 $ 6 $ 82 $ — $ 11 $ (180) $ 60 $ (385) Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period Included in earnings, net: Net investment income $ 6 $ — $ 2 $ — $ — $ — $ — $ — $ 5 $ — Investment related gains (losses), net (56) — (3) — (5) — (1) (9) — — Interest credited — — — — — — — — — (103) Included in other comprehensive income (loss) 135 (1) 32 — — — — — 2 — (1) Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward. (2) The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period. For the three months ended September 30, 2023: Fixed maturity securities available-for-sale Funds withheld at interest –embedded derivatives, net (1) Funds Interest-sensitive contract Corporate Foreign govt Structured securities U.S. and local govt Equity securities Cash equivalents Short-term investments Fair value, beginning of period $ 4,654 $ 35 $ 1,397 $ 29 $ 68 $ — $ 6 $ 9 $ 53 $ (472) Total gains/losses (realized/unrealized) Included in earnings, net: Net investment income 1 — 1 — — — — — — — Investment related gains (losses), net 4 — — — — — — 1 — — Interest credited — — — — — — — — — 3 Included in other comprehensive income (loss) (84) (2) (16) (2) — — — — (2) — Purchases (2) 170 — 29 — — — 9 — — 3 Sales (2) (19) — (10) — — — — — — — Settlements (2) (164) — (76) — — — (1) — — 25 Transfers into Level 3 53 — — — — — — — — — Transfers out of Level 3 — — — — — — (6) — — — Fair value, end of period $ 4,615 $ 33 $ 1,325 $ 27 $ 68 $ — $ 8 $ 10 $ 51 $ (441) Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period Included in earnings, net: Net investment income $ 1 $ — $ 1 $ — $ — $ — $ — $ — $ — $ — Investment related gains (losses), net — — — — — — — 1 — — Interest credited — — — — — — — — — (22) Included in other comprehensive income (loss) (81) (2) (16) (2) — — — — (2) — (1) Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward. (2) The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period. For the nine months ended September 30, 2023: Fixed maturity securities available-for-sale Funds withheld at interest –embedded derivatives, net (1) Funds Interest-sensitive contract Corporate Foreign govt Structured securities U.S. and local govt Equity securities Cash equivalents Short-term investments Fair value, beginning of period $ 4,299 $ 35 $ 1,353 $ 35 $ 66 $ — $ 13 $ (8) $ 54 $ (530) Total gains/losses (realized/unrealized) Included in earnings, net: Net investment income 3 — 4 — — — — — (3) — Investment related gains (losses), net 4 — (1) — (2) — (1) 18 — — Interest credited — — — — — — — — — 14 Included in other comprehensive income (loss) (93) (2) 28 (2) — — — — 1 — Purchases (2) 680 — 144 — 8 1 10 — 1 13 Sales (2) (51) — (14) — (4) — — — — — Settlements (2) (282) — (198) (1) — — (1) — (2) 62 Transfers into Level 3 61 — 64 — — — 6 — — — Transfers out of Level 3 (6) — (55) (5) — (1) (19) — — — Fair value, end of period $ 4,615 $ 33 $ 1,325 $ 27 $ 68 $ — $ 8 $ 10 $ 51 $ (441) Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period Included in earnings, net: Net investment income $ 3 $ — $ 4 $ — $ — $ — $ — $ — $ (3) $ — Investment related gains (losses), net (2) — (2) — (2) — (1) 18 — — Interest credited — — — — — — — — — (47) Included in other comprehensive income (loss) (94) (2) 27 (2) — — — — 1 — (1) Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward. (2) The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period.
Financial Instruments Carrying Amounts And Estimated Fair Value [Table Text Block]	The following table presents the carrying values and estimated fair values of the Company’s financial instruments, which were not measured at fair value on a recurring basis, as of September 30, 2024 and December 31, 2023 (dollars in millions). For additional information regarding the methods and significant assumptions used by the Company to estimate these fair values, see Note 13 – “Fair Value of Assets and Liabilities” in the Notes to Consolidated Financial Statements included in the Company’s 2023 Annual Report. This table excludes any payables or receivables for collateral under repurchase/reverse repurchase agreements and other transactions. The estimated fair value of the excluded amount approximates carrying value as they equal the amount of cash collateral received/paid. September 30, 2024: Carrying Value (1) Estimated Fair Value Measurement Using: Level 1 Level 2 Level 3 Assets: Mortgage loans $ 8,388 $ 8,187 $ — $ — $ 8,187 Policy loans 1,285 1,285 — 1,285 — Funds withheld at interest 5,716 5,424 — — 5,424 Limited partnerships – cost method 55 63 — — 63 Cash and cash equivalents 1,665 1,665 1,665 — — Short-term investments 36 36 36 — — Other invested assets 1,108 916 3 72 841 Accrued investment income 995 995 — 995 — Liabilities: Interest-sensitive contract liabilities (2) $ 22,401 $ 22,559 $ — $ — $ 22,559 Funds withheld at interest 4,860 4,644 — — 4,644 Long-term debt 5,067 5,025 — — 5,025 December 31, 2023: Assets: Mortgage loans $ 7,377 $ 6,975 $ — $ — $ 6,975 Policy loans 1,206 1,206 — 1,206 — Funds withheld at interest 6,005 5,547 — — 5,547 Limited partnerships – cost method 71 73 — — 73 Cash and cash equivalents 1,635 1,635 1,635 — — Short-term investments 35 35 35 — — Other invested assets 1,019 841 4 63 774 Accrued investment income 759 759 — 759 — Liabilities: Interest-sensitive contract liabilities (2) $ 21,797 $ 21,665 $ — $ — $ 21,665 Funds withheld at interest 4,689 4,400 — — 4,400 Long-term debt 4,427 4,243 — — 4,243 (1) Carrying values presented herein may differ from those in the Company’s condensed consolidated balance sheets because certain items within the respective financial statement captions may be measured at fair value on a recurring basis. (2)

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2024
Retirement Benefits [Abstract]
Schedule Of Defined Benefit Plans Disclosures Text Block	The components of net periodic benefit cost, included in other operating expenses on the Company’s condensed consolidated statements of income, for the three and nine months ended September 30, 2024 and 2023 were as follows (dollars in millions): Pension Benefits Other Benefits Three months ended September 30, Three months ended September 30, 2024 2023 2024 2023 Service cost $ 3 $ 3 $ — $ — Interest cost 3 3 1 1 Expected return on plan assets (3) (3) — — Amortization of prior service cost (credit) — — — — Amortization of prior actuarial losses 1 1 — — Settlements 1 — — — Net periodic benefit cost $ 5 $ 4 $ 1 $ 1 Pension Benefits Other Benefits Nine months ended September 30, Nine months ended September 30, 2024 2023 2024 2023 Service cost $ 10 $ 10 $ 1 $ 1 Interest cost 8 8 2 2 Expected return on plan assets (9) (8) — — Amortization of prior service cost (credit) — — (1) (1) Amortization of prior actuarial losses 2 2 — — Settlements 1 — — — Net periodic benefit cost $ 12 $ 12 $ 2 $ 2

Commitments, Contingencies an_2

Commitments, Contingencies and Guarantees (Tables)	9 Months Ended
	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]	The Company’s commitments to fund investments as of September 30, 2024 and December 31, 2023, are presented in the following table (dollars in millions): September 30, 2024 December 31, 2023 Limited partnerships and real estate joint ventures $ 1,000 $ 1,058 Mortgage loans 140 137 Bank loans and private placements 1,290 810 Lifetime mortgages 57 53
Other Commitments [Table Text Block]	The following table presents the maximum potential obligation for these commitments as of September 30, 2024 (dollars in millions): Commitment Period Maximum Potential Obligation 2034 $ 1,243 2035 1,909 2036 3,599 2037 5,100 2038 2,550 2039 8,751 2041 720 2046 3,000 2049 4,750

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Reconciliation Of Revenue From Segments To Consolidated Text Block	Information related to revenues, income (loss) before income taxes and total assets of the Company for each reportable segment are summarized below (dollars in millions): Three months ended September 30, Nine months ended September 30, Revenues: 2024 2023 2024 2023 U.S. and Latin America: Traditional $ 2,137 $ 1,949 $ 6,095 $ 5,693 Financial Solutions 917 1,115 3,890 1,908 Total 3,054 3,064 9,985 7,601 Canada: Traditional 385 366 1,160 1,098 Financial Solutions 116 26 244 79 Total 501 392 1,404 1,177 Europe, Middle East and Africa: Traditional 550 471 1,599 1,382 Financial Solutions 255 160 698 459 Total 805 631 2,297 1,841 Asia Pacific: Traditional 819 801 2,388 2,282 Financial Solutions 303 130 548 397 Total 1,122 931 2,936 2,679 Corporate and Other 169 135 244 262 Total $ 5,651 $ 5,153 $ 16,866 $ 13,560
Reconciliation Of Operating Profit Loss From Segments To Consolidated Text Block	Three months ended September 30, Nine months ended September 30, Income (loss) before income taxes: 2024 2023 2024 2023 U.S. and Latin America: Traditional $ 57 $ 105 $ 347 $ 288 Financial Solutions (46) 108 54 290 Total 11 213 401 578 Canada: Traditional 29 6 103 70 Financial Solutions 21 30 34 46 Total 50 36 137 116 Europe, Middle East and Africa: Traditional (17) (60) 12 (29) Financial Solutions 84 84 220 195 Total 67 24 232 166 Asia Pacific: Traditional 11 134 220 302 Financial Solutions 93 (16) 48 (9) Total 104 118 268 293 Corporate and Other (18) (11) (283) (157) Total $ 214 $ 380 $ 755 $ 996
Reconciliation Of Assets From Segment To Consolidated Text Block	Assets: September 30, 2024 December 31, 2023 U.S. and Latin America: Traditional $ 25,871 $ 24,320 Financial Solutions 30,208 28,385 Total 56,079 52,705 Canada: Traditional 4,707 5,111 Financial Solutions 5,548 219 Total 10,255 5,330 Europe, Middle East and Africa: Traditional 4,686 4,334 Financial Solutions 8,291 5,656 Total 12,977 9,990 Asia Pacific: Traditional 9,079 9,925 Financial Solutions 23,002 14,680 Total 32,081 24,605 Corporate and Other 8,866 4,993 Total $ 120,258 $ 97,623

Earnings Per Share (Reconciliat

Earnings Per Share (Reconciliation of the Numerators and Denominators of the Basic and Diluted Per Shares) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net Income (Loss) Available to Common Stockholders, Basic [Abstract]
Net income (numerator for basic and diluted calculations)	$ 156	$ 287	$ 569	$ 744
Shares:
Weighted average outstanding shares (denominator for basic calculation)	66	66	66	66
Equivalent shares from outstanding stock awards	1	1	1	1
Denominator for diluted calculation	67	67	67	67
Diluted earnings per share	$ 2.33	$ 4.29	$ 8.53	$ 11.06
Basic earnings per share	$ 2.37	$ 4.34	$ 8.64	$ 11.19
Net Income (Loss) Attributable to Noncontrolling Interest	$ 2	$ 2	$ 5	$ 5
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 158	$ 289	$ 574	$ 749

Equity (Common Stock Changes In

Equity (Common Stock Changes In Number of Shares Issued, Held In Treasury and Outstanding) (Details) - shares		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Class of Stock [Line Items]
Common Stock, Shares, Issued				85,310,598
Common Stock, Shares, Issued		85,310,598		85,310,598
Common Stock Issuable [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued				85,310,598	85,310,598
Treasury Stock, Shares, Acquired				0	0
Stock Based Compensation Shares	[1]	0	0
Common Stock, Shares, Issued		85,310,598	85,310,598	85,310,598	85,310,598
Common Stock Held In Treasury [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued				19,689,885	18,634,390
Treasury Stock, Shares, Acquired				0	(1,069,113)
Stock Based Compensation Shares	[1]	(243,171)	(265,118)
Common Stock, Shares, Issued		19,446,714	19,438,385	19,446,714	19,438,385
Common Stock Outstanding [Member]
Class of Stock [Line Items]
Common Stock, Shares, Issued				65,620,713	66,676,208
Treasury Stock, Shares, Acquired				0	(1,069,113)
Stock Based Compensation Shares	[1]	(243,171)	(265,118)
Common Stock, Shares, Issued		65,863,884	65,872,213	65,863,884	65,872,213
[1] Represents net shares issued from treasury pursuant to the Company’s equity based compensation programs.

Equity (Balance of and Changes

Equity (Balance of and Changes in Each Component of AOCI) (Details) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023
Balance, Beginning of Period		$ (369)	$ (1,871)
Other Comprehensive Income (Loss), before Reclassifications, before Tax		1,687	522
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		390	141
Other Comprehensive Income (Loss), Tax		436	125
Balance, End of Period		1,272	(1,333)
Accumulated Translation Adjustment [Member]
Balance, Beginning of Period		69	(116)
Other Comprehensive Income (Loss), before Reclassifications, before Tax		50	116
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		0	0
Other Comprehensive Income (Loss), Tax		(11)	(33)
Balance, End of Period		108	(33)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Balance, Beginning of Period	[1]	(3,668)	(5,496)
Other Comprehensive Income (Loss), before Reclassifications, before Tax	[1]	696	(1,652)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	[1]	389	140
Other Comprehensive Income (Loss), Tax	[1]	217	(349)
Balance, End of Period	[1]	(2,800)	(6,659)
Accumulated Defined Benefit Plans Adjustment [Member]
Balance, Beginning of Period		(29)	(27)
Other Comprehensive Income (Loss), before Reclassifications, before Tax		(1)	16
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		1	1
Other Comprehensive Income (Loss), Tax		0	(4)
Balance, End of Period		(29)	(14)
AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, Parent
Balance, Beginning of Period		3	13
Other Comprehensive Income (Loss), before Reclassifications, before Tax		4	(8)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		0	0
Other Comprehensive Income (Loss), Tax		(1)	2
Balance, End of Period		6	7
AOCI, Liability for Future Policy Benefit, Parent
Balance, Beginning of Period		3,256	3,755
Other Comprehensive Income (Loss), before Reclassifications, before Tax		938	2,050
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		0	0
Other Comprehensive Income (Loss), Tax		207	439
Balance, End of Period		$ 3,987	$ 5,366
[1] Includes cash flow hedges of $(229) and $(218) as of September 30, 2024 and December 31, 2023, respectively, and $(351) and $(205) as of September 30, 2023 and December 31, 2022, respectively. See Note 11 – “Derivative Instruments” for additional information on cash flow hedges.

Equity (Schedule of Reclassific

Equity (Schedule of Reclassifications out of AOCI) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Income Tax Expense (Benefit)		$ (56)	$ (91)	$ (181)	$ (247)
Net income		156	287	569	744
Unrealized Appreciation Depreciation Of Investments [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Investment related gains (losses), net		(68)	(36)	(356)	(132)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		(85)	(41)	(389)	(140)
Income Tax Expense (Benefit)		18	13	79	36
Net income		(67)	(28)	(310)	(104)
Amortization Of Unrealized Pension And Postretirement Benefits [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Prior service cost	[1]	0	0	1	1
Actuarial gains/(losses)	[1]	(1)	(1)	(2)	(2)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest		(1)	(1)	(1)	(1)
Income Tax Expense (Benefit)		0	0	0	0
Net income		(1)	(1)	(1)	(1)
Amounts Reclassified From AOCI [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Net income		(68)	(29)	(311)	(105)
Currency Swap [Member] | Unrealized Appreciation Depreciation Of Investments [Member] | Unrealized Gains Losses On Available For Sale Securities [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	[2]	(20)	(8)	(42)	(15)
Interest Rate Options [Member] | Unrealized Appreciation Depreciation Of Investments [Member] | Unrealized Gains Losses On Available For Sale Securities [Member]
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	[2]	$ 3	$ 3	$ 9	$ 7
[1] This AOCI component is included in the computation of the net periodic pension cost. See Note 14 – “Employee Benefit Plans” for additional details. See Note 11 – “Derivative Instruments” for additional information on cash flow hedges.

Equity (Narrative) (Details)

Equity (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Equity, Class of Treasury Stock [Line Items]
Stockholders' Equity Attributable to Noncontrolling Interest	$ 90	$ 90	$ 90	$ 90	$ 90	$ 90
Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount	$ 500

Equity Based Compensation (Narr

Equity Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity compensation expense	$ 37	$ 35
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	106,233
Stock appreciation rights granted, weighted average exercise price (per share)	$ 185.28
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	1,221,419
Options exercisable, weighted average price (per share)	$ 121.74
Options, remaining term	4 years 4 months 24 days
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 44
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	9 months 18 days
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	116,883
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	81,527

Future Policy Benefits (Long Du

Future Policy Benefits (Long Duration Reinsurance Contracts) (Details) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Liability for Future Policy Benefit, by Product Segment [Line Items]
Future policy benefits		$ 55,933	$ 36,474	$ 41,231
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense		5,406	5,062
Future Policy Benefits Unearned Revenue Liability		890	499
Additional Liability, Long-Duration Insurance, before Reinsurance, after Discount Rate Change		117	126
Life Insurance Product Line [Member] | Americas [Member] | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax		(4,225)	(10,563)	76,943	$ 74,207
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change				67	905
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				(510)	68
Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change		78,701	76,464	76,500	75,180
Liability for Future Policy Benefit, Expected Net Premium, Issuance	[1]	4,980	3,186
Liability for Future Policy Benefit, Expected Net Premium, Interest Income	[2]	2,617	2,619
Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected	[3]	(4,390)	(4,491)
Liability for Future Policy Benefit, Expected Net Premium, Derecognition	[4]	(1,000)	(35)
Liability for Future Policy Benefit, Expected Net Premium, Increase (Decrease) for Other Change		(6)	5
Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change		74,476	65,901
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax		(5,364)	(13,185)	89,036	85,285
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change				36	922
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				(623)	73
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change		91,173	88,343	88,449	86,280
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance	[1]	4,980	3,186
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense	[2]	3,049	3,023
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment	[5]	(4,292)	(4,097)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Derecognition	[4]	(1,008)	(54)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Increase (Decrease) for Other Change		(5)	5
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change		85,809	75,158
Future policy benefits		11,333	9,257
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance		(726)	(658)
Liability for Future Policy Benefit, after Reinsurance		$ 10,607	$ 8,599
Liability for Future Policy Benefit, Weighted-Average Duration		12 years	11 years
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate		4.60%	4.70%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate		5.10%	5.90%
Life Insurance Product Line [Member] | CANADA | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax		$ (4,388)	$ (5,879)	22,689	21,330
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change				(592)	96
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				183	408
Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change		22,008	22,011	22,280	21,834
Liability for Future Policy Benefit, Expected Net Premium, Issuance	[1]	385	369
Liability for Future Policy Benefit, Expected Net Premium, Interest Income	[2]	560	562
Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected	[3]	(737)	(700)
Liability for Future Policy Benefit, Expected Net Premium, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Net Premium, Increase (Decrease) for Other Change		(480)	(54)
Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change		17,620	16,132
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax		(3,651)	(5,520)	26,275	24,655
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change				(620)	108
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				177	413
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change		25,576	25,453	25,832	25,176
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance	[1]	385	369
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense	[2]	721	720
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment	[5]	(799)	(752)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Increase (Decrease) for Other Change		(563)	(60)
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change		21,925	19,933
Future policy benefits		4,305	3,801
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance		(272)	(259)
Liability for Future Policy Benefit, after Reinsurance		$ 4,033	$ 3,542
Liability for Future Policy Benefit, Weighted-Average Duration		14 years	14 years
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate		3.60%	3.70%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate		4.80%	5.40%
Life Insurance Product Line [Member] | EMEA [Member] | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax		$ (2,803)	$ (3,145)	15,328	14,244
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change				187	199
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				421	75
Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change		16,823	14,631	15,936	14,518
Liability for Future Policy Benefit, Expected Net Premium, Issuance	[1]	861	884
Liability for Future Policy Benefit, Expected Net Premium, Interest Income	[2]	394	373
Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected	[3]	(1,119)	(1,067)
Liability for Future Policy Benefit, Expected Net Premium, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Net Premium, Increase (Decrease) for Other Change		751	(77)
Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change		14,020	11,486
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax		(3,131)	(3,402)	16,756	15,454
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change				212	246
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				417	84
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change		18,350	15,960	17,385	15,784
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance	[1]	861	884
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense	[2]	425	402
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment	[5]	(1,115)	(1,033)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Increase (Decrease) for Other Change		794	(77)
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change		15,219	12,558
Future policy benefits		1,199	1,072
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance		(24)	(33)
Liability for Future Policy Benefit, after Reinsurance		$ 1,175	$ 1,039
Liability for Future Policy Benefit, Weighted-Average Duration		8 years	8 years
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate		3.30%	3.50%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate		5.50%	6%
Life Insurance Product Line [Member] | Asia Pacific [Member] | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax		$ (12,360)	$ (13,178)	42,741	40,506
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change				975	(180)
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				210	9
Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change		45,802	40,958	43,926	40,335
Liability for Future Policy Benefit, Expected Net Premium, Issuance	[1]	2,825	2,839
Liability for Future Policy Benefit, Expected Net Premium, Interest Income	[2]	843	794
Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected	[3]	(1,653)	(1,493)
Liability for Future Policy Benefit, Expected Net Premium, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Net Premium, Increase (Decrease) for Other Change		(139)	(1,517)
Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change		33,442	27,780
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax		(14,496)	(15,342)	47,370	44,785
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change				1,048	(171)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				121	(40)
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change		50,714	45,474	48,539	44,574
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance	[1]	2,825	2,839
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense	[2]	964	907
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment	[5]	(1,476)	(1,287)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Increase (Decrease) for Other Change		(138)	(1,559)
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change		36,218	30,132
Future policy benefits		2,776	2,352
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance		(85)	(115)
Liability for Future Policy Benefit, after Reinsurance		$ 2,691	$ 2,237
Liability for Future Policy Benefit, Weighted-Average Duration		15 years	15 years
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate		2.60%	2.70%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate		4.60%	4.90%
Insurance, Other | Americas [Member] | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax		$ (179)	$ (336)	1,455	1,671
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change				12	(69)
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				(3)	(20)
Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change		1,385	1,480	1,464	1,582
Liability for Future Policy Benefit, Expected Net Premium, Issuance	[1]	2,755	923
Liability for Future Policy Benefit, Expected Net Premium, Interest Income	[2]	33	37
Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected	[3]	(2,867)	(1,064)
Liability for Future Policy Benefit, Expected Net Premium, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Net Premium, Increase (Decrease) for Other Change		0	2
Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change		1,206	1,144
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax		(215)	(788)	6,843	5,823
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change				20	(91)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				0	(28)
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change		9,483	6,388	6,863	5,704
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance	[1]	2,882	931
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense	[2]	276	173
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment	[5]	(538)	(405)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Derecognition	[4]	0	(16)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Increase (Decrease) for Other Change		0	1
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change		9,268	5,600
Liability For Future Policy Benefits Cumulative Amount Of Fair Value Hedging Adjustments		32
Future policy benefits		8,094	4,456
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance		(1,241)	0
Liability for Future Policy Benefit, after Reinsurance		$ 6,853	$ 4,456
Liability for Future Policy Benefit, Weighted-Average Duration		8 years	8 years
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate		3.90%	3.50%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate		4.90%	5.90%
Insurance, Other | CANADA | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax		$ (204)	$ (482)	3,184	3,394
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change				0	(54)
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				(7)	(5)
Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change		3,916	3,160	3,177	3,335
Liability for Future Policy Benefit, Expected Net Premium, Issuance	[1]	4,983	0
Liability for Future Policy Benefit, Expected Net Premium, Interest Income	[2]	96	80
Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected	[3]	(4,284)	(249)
Liability for Future Policy Benefit, Expected Net Premium, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Net Premium, Increase (Decrease) for Other Change		(56)	(6)
Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change		3,712	2,678
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax		(33)	(480)	3,210	3,447
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change				0	(76)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				(7)	(13)
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change		8,062	3,186	3,203	3,358
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance	[1]	4,983	0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense	[2]	189	81
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment	[5]	(310)	(248)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Increase (Decrease) for Other Change		(3)	(5)
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change		8,029	2,706
Liability For Future Policy Benefits Cumulative Amount Of Fair Value Hedging Adjustments		0
Future policy benefits		4,317	28
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance		0	0
Liability for Future Policy Benefit, after Reinsurance		$ 4,317	$ 28
Liability for Future Policy Benefit, Weighted-Average Duration		13 years	7 years
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate		4.10%	3.30%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate		4.70%	5.50%
Insurance, Other | EMEA [Member] | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax		$ (8,677)	$ (9,571)	54,832	38,782
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change				(93)	(561)
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				1,025	387
Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change		65,559	42,534	55,764	38,608
Liability for Future Policy Benefit, Expected Net Premium, Issuance	[1]	9,881	6,278
Liability for Future Policy Benefit, Expected Net Premium, Interest Income	[2]	1,364	678
Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected	[3]	(4,046)	(3,045)
Liability for Future Policy Benefit, Expected Net Premium, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Net Premium, Increase (Decrease) for Other Change		2,596	15
Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change		56,882	32,963
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax		(9,571)	(10,552)	60,938	44,330
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change				(90)	(595)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				1,026	374
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change		72,527	48,483	61,874	44,109
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance	[1]	9,881	6,278
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense	[2]	1,530	807
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment	[5]	(3,676)	(2,748)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Increase (Decrease) for Other Change		2,918	37
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change		62,956	37,931
Liability For Future Policy Benefits Cumulative Amount Of Fair Value Hedging Adjustments		0
Future policy benefits		6,074	4,968
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance		0	0
Liability for Future Policy Benefit, after Reinsurance		$ 6,074	$ 4,968
Liability for Future Policy Benefit, Weighted-Average Duration		10 years	9 years
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate		3.10%	2.30%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate		5%	5.30%
Insurance, Other | Asia Pacific [Member] | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax		$ (232)	$ (178)	2,057	1,605
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change				1	0
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				(7)	(10)
Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change		1,641	1,936	2,051	1,595
Liability for Future Policy Benefit, Expected Net Premium, Issuance	[1]	6,443	2,131
Liability for Future Policy Benefit, Expected Net Premium, Interest Income	[2]	22	19
Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected	[3]	(6,823)	(1,573)
Liability for Future Policy Benefit, Expected Net Premium, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Net Premium, Increase (Decrease) for Other Change		(52)	(236)
Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change		1,409	1,758
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax		(1,544)	(997)	8,019	6,561
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change				10	0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience				(8)	(12)
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change		14,375	7,608	$ 8,021	$ 6,549
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance	[1]	6,443	2,141
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense	[2]	129	65
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment	[5]	(326)	(199)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Derecognition	[4]	0	0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Increase (Decrease) for Other Change		108	(948)
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change		12,831	6,611
Liability For Future Policy Benefits Cumulative Amount Of Fair Value Hedging Adjustments		0
Future policy benefits		11,422	4,853
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance		0	0
Liability for Future Policy Benefit, after Reinsurance		$ 11,422	$ 4,853
Liability for Future Policy Benefit, Weighted-Average Duration		15 years	15 years
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate		1.60%	1.30%
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate		2.80%	2.40%
[1] Issuances: The present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new reinsurance contracts that became effective during the current period and new policies assumed on existing contracts. Interest accrual: The interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. Net premiums collected: The portion of gross premiums collected from the ceding company that is used to fund expected benefit payments. Derecognition: Includes the effects of treaty recaptures and treaty amendments that resulted in the termination of an existing treaty and the issuance of a new treaty under the internal replacement model. Benefit payments: The release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal, and other benefit payments based on current assumptions.

Future Policy Benefits (Assumpt

Future Policy Benefits (Assumption Explanations) (Details) - Other Segments - USD ($)	Sep. 30, 2024	Sep. 30, 2023
Life Insurance Product Line [Member] | Americas [Member]
Liability for Future Policy Benefit, by Product Segment [Line Items]
Net Liability For Future Policy Benefits At Original Discount Rate	$ 12,500,000,000	$ 12,000,000,000
Future Policy Benefits Actual To Expected Variance	(113,000,000)	(5,000,000)
Impact Of Updating Discount Rate Recognized In OCI	(7,000,000)	1,000,000
Changes In Cash Flow Assumptions	31,000,000	17,000,000
Life Insurance Product Line [Member] | CANADA
Liability for Future Policy Benefit, by Product Segment [Line Items]
Net Liability For Future Policy Benefits At Original Discount Rate	3,600,000,000	3,400,000,000
Future Policy Benefits Actual To Expected Variance	(6,000,000)	(5,000,000)
Impact Of Updating Discount Rate Recognized In OCI	(134,000,000)	267,000,000
Changes In Cash Flow Assumptions	28,000,000	12,000,000
Life Insurance Product Line [Member] | EMEA [Member]
Liability for Future Policy Benefit, by Product Segment [Line Items]
Net Liability For Future Policy Benefits At Original Discount Rate	1,500,000,000	1,300,000,000
Future Policy Benefits Actual To Expected Variance	4,000,000	9,000,000
Impact Of Updating Discount Rate Recognized In OCI	109,000,000	88,000,000
Changes In Cash Flow Assumptions	25,000,000	47,000,000
Life Insurance Product Line [Member] | Asia Pacific [Member]
Liability for Future Policy Benefit, by Product Segment [Line Items]
Net Liability For Future Policy Benefits At Original Discount Rate	4,900,000,000	4,500,000,000
Future Policy Benefits Actual To Expected Variance	89,000,000	(49,000,000)
Impact Of Updating Discount Rate Recognized In OCI	(171,000,000)	233,000,000
Changes In Cash Flow Assumptions	73,000,000	9,000,000
Insurance, Other | Americas [Member]
Liability for Future Policy Benefit, by Product Segment [Line Items]
Net Liability For Future Policy Benefits At Original Discount Rate	8,100,000,000	4,900,000,000
Future Policy Benefits Actual To Expected Variance	(3,000,000)	(8,000,000)
Impact Of Updating Discount Rate Recognized In OCI	(124,000,000)	(119,000,000)
Changes In Cash Flow Assumptions	8,000,000	22,000,000
Insurance, Other | CANADA
Liability for Future Policy Benefit, by Product Segment [Line Items]
Net Liability For Future Policy Benefits At Original Discount Rate	4,100,000,000	26,000,000,000
Future Policy Benefits Actual To Expected Variance	0	(8,000,000)
Impact Of Updating Discount Rate Recognized In OCI	(168,000,000)	(1,000,000)
Changes In Cash Flow Assumptions	0	22,000,000
Insurance, Other | EMEA [Member]
Liability for Future Policy Benefit, by Product Segment [Line Items]
Net Liability For Future Policy Benefits At Original Discount Rate	7,000,000,000	5,900,000,000
Future Policy Benefits Actual To Expected Variance	1,000,000	13,000,000,000
Impact Of Updating Discount Rate Recognized In OCI	241,000,000	67,000,000
Changes In Cash Flow Assumptions	3,000,000	34,000,000
Insurance, Other | Asia Pacific [Member]
Liability for Future Policy Benefit, by Product Segment [Line Items]
Net Liability For Future Policy Benefits At Original Discount Rate	12,700,000,000	5,700,000,000
Future Policy Benefits Actual To Expected Variance	1,000,000	2,000,000
Impact Of Updating Discount Rate Recognized In OCI	(540,000,000)	(359,000,000)
Changes In Cash Flow Assumptions	$ 9,000,000	$ 0

Future Policy Benefits (Undisco

Future Policy Benefits (Undiscounted and Discounted) (Details) - Other Segments - USD ($) $ in Millions	Sep. 30, 2024	Sep. 30, 2023
Americas [Member] | Life Insurance Product Line [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	$ 87,831	$ 77,008
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	191,246	188,177
Liability For Future Policy Benefit Expected Future Policy Benefit Discounted Before Reinsurance	85,809	75,158
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	182,731	177,307
Americas [Member] | Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	1,828	1,794
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	15,257	10,233
Liability For Future Policy Benefit Expected Future Policy Benefit Discounted Before Reinsurance	9,268	5,600
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	2,816	3,012
CANADA | Life Insurance Product Line [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	21,928	19,902
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	56,312	56,423
Liability For Future Policy Benefit Expected Future Policy Benefit Discounted Before Reinsurance	21,925	19,933
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	54,520	54,378
CANADA | Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	4,101	2,856
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	17,933	4,285
Liability For Future Policy Benefit Expected Future Policy Benefit Discounted Before Reinsurance	8,029	2,706
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	6,306	4,545
EMEA [Member] | Life Insurance Product Line [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	15,609	13,131
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	28,796	24,509
Liability For Future Policy Benefit Expected Future Policy Benefit Discounted Before Reinsurance	15,219	12,558
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	28,668	24,778
EMEA [Member] | Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	57,940	36,603
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	120,917	71,027
Liability For Future Policy Benefit Expected Future Policy Benefit Discounted Before Reinsurance	62,956	37,931
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	111,948	68,410
Asia Pacific [Member] | Life Insurance Product Line [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	42,453	35,372
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	99,908	87,120
Liability For Future Policy Benefit Expected Future Policy Benefit Discounted Before Reinsurance	36,218	30,132
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	103,658	90,652
Asia Pacific [Member] | Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance	2,988	2,828
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance	22,330	10,522
Liability For Future Policy Benefit Expected Future Policy Benefit Discounted Before Reinsurance	12,831	6,611
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance	$ 4,089	$ 3,797

Future Policy Benefits (Premium

Future Policy Benefits (Premiums and Interest) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	$ 1,354	$ 1,016
Liability for Future Policy Benefit, Gross Premium Income	12,442	9,993
Americas [Member] | Life Insurance Product Line [Member] | Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	432	404
Liability for Future Policy Benefit, Gross Premium Income	4,658	4,435
Americas [Member] | Insurance, Other | Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	243	136
Liability for Future Policy Benefit, Gross Premium Income	2,816	979
CANADA | Life Insurance Product Line [Member] | Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	161	158
Liability for Future Policy Benefit, Gross Premium Income	825	808
CANADA | Insurance, Other | Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	93	1
Liability for Future Policy Benefit, Gross Premium Income	120	68
EMEA [Member] | Life Insurance Product Line [Member] | Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	31	29
Liability for Future Policy Benefit, Gross Premium Income	1,101	1,058
EMEA [Member] | Insurance, Other | Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	166	129
Liability for Future Policy Benefit, Gross Premium Income	669	515
Asia Pacific [Member] | Life Insurance Product Line [Member] | Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	121	113
Liability for Future Policy Benefit, Gross Premium Income	2,095	1,959
Asia Pacific [Member] | Insurance, Other | Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Interest Expense	107	46
Liability for Future Policy Benefit, Gross Premium Income	$ 158	$ 171

Future Policy Benefits (Details

Future Policy Benefits (Details) (Narrative) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Liability for Future Policy Benefit, by Product Segment [Line Items]
Future Policy Benefits Remeasurement Gain Loss After Reinsurance	$ 136
Life Insurance Product Line [Member] | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
Future Policy Benefits Remeasurement Gain Loss After Reinsurance	39	$ 85
Life Insurance Product Line [Member] | Americas [Member] | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
Changes In Cash Flow Assumptions	31	17
Liability for Future Policy Benefit, after Reinsurance	10,607	8,599
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance	(726)	(658)
Insurance, Other | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
Future Policy Benefits Remeasurement Gain Loss After Reinsurance	20	78
Insurance, Other | Americas [Member] | Other Segments
Liability for Future Policy Benefit, by Product Segment [Line Items]
Changes In Cash Flow Assumptions	8	22
Liability for Future Policy Benefit, after Reinsurance	6,853	4,456
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance	$ (1,241)	$ 0

Policyholder Account Balances_2

Policyholder Account Balances (Account Balances) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Policyholder Account Balance [Line Items]
Policyholder Account Balance		$ 23,729	$ 23,166	$ 23,729	$ 23,166
Interest credited		310	223	795	647
Policyholder Account Balance, Increase (Decrease) from Other Change				76	51
Life Insurance Product Line [Member] | Americas [Member] | Other Segments
Policyholder Account Balance [Line Items]
Policyholder Account Balance		3,318	1,622	3,318	1,622	$ 1,612	$ 1,683
Policyholder Account Balance, Issuance				1,779	20
Policyholder Account Balance, Policy Charge				(103)	(23)
Policyholder Account Balance, Surrender and Withdrawal				(11)	(11)
Policyholder Account Balance, Benefit Payment				(91)	(96)
Interest credited				132	49
Policyholder Account Balance Foreign Currency Translation				0	0
Policyholder Account Balance Reinsurance Recoverable		0	0	0	0
Policyholder Account Balance After Reinsurance		3,318	1,622	3,318	1,622
Policyholder Account Balance, Net Amount at Risk	[1]	34,671	664	34,671	664
Policyholder Account Balance, Cash Surrender Value		$ 3,313	$ 1,608	$ 3,313	$ 1,608
Policyholder Account Balance, Weighted Average Crediting Rate		3.10%	4.40%	3.10%	4.40%
Insurance, Other | Americas [Member] | Other Segments
Policyholder Account Balance [Line Items]
Policyholder Account Balance		$ 16,366	$ 17,515	$ 16,366	$ 17,515	17,838	18,906
Policyholder Account Balance, Issuance				101	84
Policyholder Account Balance, Policy Charge				(61)	(26)
Policyholder Account Balance, Surrender and Withdrawal				(1,598)	(1,517)
Policyholder Account Balance, Benefit Payment				(346)	(357)
Interest credited				432	425
Policyholder Account Balance Foreign Currency Translation				0	0
Policyholder Account Balance Reinsurance Recoverable		(2,844)	(1,501)	(2,844)	(1,501)
Policyholder Account Balance After Reinsurance		13,522	16,014	13,522	16,014
Policyholder Account Balance, Net Amount at Risk	[1]	6,614	2,410	6,614	2,410
Policyholder Account Balance, Cash Surrender Value		$ 16,262	$ 17,479	$ 16,262	$ 17,479
Policyholder Account Balance, Weighted Average Crediting Rate		3.50%	3.30%	3.50%	3.30%
Insurance, Other | Asia Pacific [Member] | Other Segments
Policyholder Account Balance [Line Items]
Policyholder Account Balance		$ 3,969	$ 3,978	$ 3,969	$ 3,978	$ 3,990	$ 3,351
Policyholder Account Balance, Issuance				1,262	765
Policyholder Account Balance, Policy Charge				(137)	(5)
Policyholder Account Balance, Surrender and Withdrawal				(903)	(93)
Policyholder Account Balance, Benefit Payment				(331)	(79)
Interest credited				84	82
Policyholder Account Balance Foreign Currency Translation				4	43
Policyholder Account Balance Reinsurance Recoverable		0	0	0	0
Policyholder Account Balance After Reinsurance		3,969	3,978	3,969	3,978
Policyholder Account Balance, Net Amount at Risk	[1]	13	0	13	0
Policyholder Account Balance, Cash Surrender Value		$ 3,618	$ 3,760	$ 3,618	$ 3,760
Policyholder Account Balance, Weighted Average Crediting Rate		3.70%	3%	3.70%	3%
[1]Net amount at risk is defined as the guaranteed amount less the account value as of the balance sheet date. The balance represents the amount of the claim the Company would incur if death claims were filed on all contracts on the balance sheet date.

Policyholder Account Balances_3

Policyholder Account Balances (Guaranteed Minimum) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	$ 23,729		$ 23,166
Americas [Member] | Life Insurance Product Line [Member] | Other Segments
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	3,318	$ 1,612	1,622	$ 1,683
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	2,100		514
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	112		108
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,105		1,000
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	109		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	108		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	619		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	495		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	7		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	117		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,822		1,622
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	739		514
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	103		108
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	980		1,000
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	702		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	702		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	66		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	56		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	2		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	8		0
Americas [Member] | Insurance, Other | Other Segments
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	16,366	17,838	17,515	18,906
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	15,163		16,306
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	272		301
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	569		673
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	201		97
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	161		138
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	2,051		2,351
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,301		1,625
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	15		14
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	530		608
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	170		62
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	35		42
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	4,028		4,652
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	3,693		4,335
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	213		234
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	4		2
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	2		0
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	116		81
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	8,859		8,708
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	8,827		8,665
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	32		43
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,428		1,804
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,342		1,681
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	12		10
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	35		63
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	29		35
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	10		15
Asia Pacific [Member] | Insurance, Other | Other Segments
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	3,969	$ 3,990	3,978	$ 3,351
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	3,969		3,978
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	492		827
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	492		827
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	993		1,289
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	993		1,289
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,814		882
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,814		882
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	193		281
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	193		281
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	477		699
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	477		699
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	$ 0		$ 0

Unpaid Claims and Claims Expe_3

Unpaid Claims and Claims Expense Short Duration Contracts (Rollforward Of Claims) (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Liability for Claims and Claims Adjustment Expense	$ 2,875	$ 2,654	$ 2,730	$ 2,480
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments	(62)	(71)	(80)	(57)
Liability For Unpaid Claims And Claims Adjustment Expense Net Of Recoverable	2,813	2,583	$ 2,650	$ 2,423
Current Year Claims and Claims Adjustment Expense	1,161	1,268
Prior Year Claims and Claims Adjustment Expense	(83)	(89)
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims	1,078	1,179
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year	(240)	(278)
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years	(700)	(721)
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid	(940)	(999)
Interest On Liability For Policy And Contract Claims	29	25
Liability for Unpaid Claims and Claims Adjustment Expense, Foreign Currency Translation Gain (Loss)	(4)	(45)
Liability for Unpaid Claims and Claims Adjustment Expense Other	$ (25)	$ (20)

Market Risk Benefits (Balances

Market Risk Benefits (Balances and Changes of Market Risk Benefits) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Market Risk Benefit [Line Items]
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk	$ 233	$ 216
Market Risk Benefit, Net Amount at Risk	247		$ 258
Insurance, Other | Americas [Member] | Other Segments
Market Risk Benefit [Line Items]
Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change	233	216	249	$ 247
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change	241	225	$ 253	$ 263
Market Risk Benefit, Interest Expense	8	9
Market Risk Benefit, Attributed Fee Collected	19	19
Market Risk Benefit, Benefit Payment	0	1
Market Risk Benefit, Increase (Decrease) from Interest Rate Change	(3)	(54)
Market Risk Benefit, Increase (Decrease) from Equity Market Change	(39)	(25)
Market Risk Benefit, Increase (Decrease) from Volatility	0	(5)
Market Risk Benefit, Increase (Decrease) from Other Assumption	(13)	(11)
Market Risk Benefit, Increase (Decrease) from Actual Policyholder Behavior Different from Expected	13	12
AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, before Tax	(8)	(9)
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk	233	216
Market Risk Benefit, Reinsurance Recoverable, after Allowance	0	0
Market Risk Benefit, Net Amount at Risk	$ 1,285	$ 1,375
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age	71 years	71 years
Market Risk Benefit, Increase (Decrease) from Future Expected Policyholder Behavior Assumption	$ 3	$ 16

Market Risk Benefits (Instrumen

Market Risk Benefits (Instrument Specific Credit Risk) (Details) - USD ($) $ in Millions		Sep. 30, 2024	Sep. 30, 2023
Market Risk Benefit [Line Items]
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk		$ (233)	$ (216)
Market Risk Benefit, Asset, Amount	[1]	14	8
Market Risk Benefit, Liability, Amount		247	224
Insurance, Other | Americas [Member] | Other Segments
Market Risk Benefit [Line Items]
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk		(233)	(216)
Market Risk Benefit, Asset, Amount	[1]	14	8
Market Risk Benefit, Liability, Amount		$ 247	$ 224
[1] Included in Other assets.

Deferred Policy Acquisition C_3

Deferred Policy Acquisition Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	$ 5,477	$ 4,289	$ 5,477	$ 4,289	$ 4,617
Deferred Policy Acquisition Costs, Amortization Expense	(452)	(348)	(1,230)	(1,028)
Corporate and Other [Member]
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	14	4	14	4
Life Insurance Product Line [Member] | Americas [Member] | Other Segments
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	2,967	2,160	2,967	2,160	2,191	$ 2,087
Deferred Policy Acquisition Cost, Capitalization			899	183
Deferred Policy Acquisition Costs, Amortization Expense			(121)	(111)
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)			(2)	1
Life Insurance Product Line [Member] | CANADA | Other Segments
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	167	169	167	169	173	171
Deferred Policy Acquisition Cost, Capitalization			6	7
Deferred Policy Acquisition Costs, Amortization Expense			(8)	(9)
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)			(4)	0
Life Insurance Product Line [Member] | EMEA [Member] | Other Segments
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	379	331	379	331	347	294
Deferred Policy Acquisition Cost, Capitalization			56	75
Deferred Policy Acquisition Costs, Amortization Expense			(36)	(28)
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)			12	(10)
Life Insurance Product Line [Member] | Asia Pacific [Member] | Other Segments
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	1,170	1,069	1,170	1,069	1,098	1,043
Deferred Policy Acquisition Cost, Capitalization			117	94
Deferred Policy Acquisition Costs, Amortization Expense			(44)	(44)
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)			(1)	(24)
Insurance, Other | Americas [Member] | Other Segments
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	495	309	495	309	552	341
Deferred Policy Acquisition Cost, Capitalization			1	0
Deferred Policy Acquisition Costs, Amortization Expense			(44)	(32)
Deferred Policy Acquisition Cost, Amortization Expense, Other			14
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)			0	0
Insurance, Other | CANADA | Other Segments
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	0	0	0	0	0	0
Deferred Policy Acquisition Cost, Capitalization			0	0
Deferred Policy Acquisition Costs, Amortization Expense			0	0
Deferred Policy Acquisition Cost, Amortization Expense, Other			0
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)			0	0
Insurance, Other | EMEA [Member] | Other Segments
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	0	0	0	0	0	0
Deferred Policy Acquisition Cost, Capitalization			0	0
Deferred Policy Acquisition Costs, Amortization Expense			0	0
Deferred Policy Acquisition Cost, Amortization Expense, Other			0
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)			0	0
Insurance, Other | Asia Pacific [Member] | Other Segments
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	$ 285	$ 247	285	247	$ 250	$ 188
Deferred Policy Acquisition Cost, Capitalization			67	89
Deferred Policy Acquisition Costs, Amortization Expense			(33)	(24)
Deferred Policy Acquisition Cost, Amortization Expense, Other			0
Deferred Policy Acquisition Costs, Foreign Currency Translation Gain (Loss)			$ 1	$ (6)

Reinsurance (Ceded Reinsurance

Reinsurance (Ceded Reinsurance Receivable Assets) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Ceded Credit Risk [Line Items]
Reinsurance Recoverables, Including Reinsurance Premium Paid	$ 5,438	$ 5,448
Reinsurance Ceded Receivables Percentage Total	77.20%
Reinsurance Recoverable for Paid Claims and Claims Adjustments	$ 2,700
Insurance Companies Reinsurance And Coinsurance Retroceded Funds Withheld	390
Reinsurer A [Member]
Ceded Credit Risk [Line Items]
Reinsurance Recoverables, Including Reinsurance Premium Paid	$ 2,800	$ 3,100

Reinsurance (Funds Withheld) (D

Reinsurance (Funds Withheld) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Reinsurance Funds Withheld Assets [Line Items]
Funds withheld at interest	$ 5,545	$ 5,683
Fixed Maturities [Member]
Reinsurance Funds Withheld Assets [Line Items]
Funds withheld at interest	2,390	2,442
Equity securities
Reinsurance Funds Withheld Assets [Line Items]
Funds withheld at interest	2	2
Mortgage Loans on Real Estate [Member]
Reinsurance Funds Withheld Assets [Line Items]
Funds withheld at interest	452	451
Funds withheld at interest
Reinsurance Funds Withheld Assets [Line Items]
Funds withheld at interest	1,486	1,545
Partnership
Reinsurance Funds Withheld Assets [Line Items]
Funds withheld at interest	48	35
Short-term Investments [Member]
Reinsurance Funds Withheld Assets [Line Items]
Funds withheld at interest	58	30
Accrued Income Receivable
Reinsurance Funds Withheld Assets [Line Items]
Funds withheld at interest	32	28
Other Assets
Reinsurance Funds Withheld Assets [Line Items]
Funds withheld at interest	0	1
Assets
Reinsurance Funds Withheld Assets [Line Items]
Funds withheld at interest	$ 4,468	$ 4,534

Reinsurance (Narrative) (Detail

Reinsurance (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Ceded Credit Risk [Line Items]
Claims Recoverable From Retrocessionaires Past Due	$ 4	$ 10
Embedded Derivative, Fair Value of Embedded Derivative Asset	51	206
Funds Held under Reinsurance Agreements, Liability	4,809	$ 4,483
Reinsurance, Excess Retention, Amount Reinsured, Per Life	8
Reinsurance Retention Excess Retention Amount Reinsured Per Life Update	30
Future Policy Benefits Remeasurement Gain Loss After Reinsurance	$ 136
AM Best, B++ Rating
Ceded Credit Risk [Line Items]
Ceded Credit Risk, Disclosure	“B++ (Good)”

Investments (Investments in Fix

Investments (Investments in Fixed Maturity and Equity Securities Available-for-Sale by Sector) (Details) - USD ($) $ in Millions	Sep. 30, 2024		Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	$ 81,606		$ 64,977
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1,755		1,125
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	5,092		5,560
Fixed maturity securities, available-for-sale	$ 78,149	[1]	$ 60,467	[2]
% of Total	100%		100%
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 120		$ 75
Corporate Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	53,327		42,014
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1,058		554
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	3,194		3,751
Fixed maturity securities, available-for-sale	$ 51,087	[1]	$ 38,755	[2]
% of Total	65.40%		64.10%
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 104		$ 62
Canadian and Canadian provincial governments
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	4,517		3,477
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	494		473
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	41		33
Fixed maturity securities, available-for-sale	$ 4,970	[1]	$ 3,917	[2]
% of Total	6.40%		6.50%
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 0		$ 0
Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	1,374		1,173
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	20		8
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	76		102
Fixed maturity securities, available-for-sale	$ 1,318	[1]	$ 1,079	[2]
% of Total	1.70%		1.80%
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 0		$ 0
Asset-backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	5,521		4,661
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	44		19
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	177		239
Fixed maturity securities, available-for-sale	$ 5,373	[1]	$ 4,429	[2]
% of Total	6.90%		7.30%
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 15		$ 12
Commercial Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	2,327		1,969
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	27		7
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	115		202
Fixed maturity securities, available-for-sale	$ 2,238	[1]	$ 1,773	[2]
% of Total	2.90%		2.90%
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 1		$ 1
US Treasury and Government [Member]
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	1,897		2,725
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	18		9
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	212		214
Fixed maturity securities, available-for-sale	$ 1,703	[1]	$ 2,520	[2]
% of Total	2.10%		4.20%
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 0		$ 0
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	895		1,236
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	7		7
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	81		129
Fixed maturity securities, available-for-sale	$ 821	[1]	$ 1,114	[2]
% of Total	1.10%		1.80%
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 0		$ 0
Debt Security, Government, Non-US [Member]
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	5,645		4,092
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	84		45
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	360		388
Fixed maturity securities, available-for-sale	$ 5,369	[1]	$ 3,749	[2]
% of Total	6.80%		6.20%
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 0		$ 0
JAPAN
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	6,103		3,630
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	3		3
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	836		502
Fixed maturity securities, available-for-sale	$ 5,270		$ 3,131
% of Total	6.70%		5.20%
Debt Securities, Available-for-Sale, Allowance for Credit Loss	$ 0		$ 0
[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of September 30, 2024, the fair value of such investments was $921 million.

Investments (Exposure To Concen

Investments (Exposure To Concentrations Of Credit Risk) (Details) - USD ($) $ in Millions	Sep. 30, 2024		Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	$ 81,606		$ 64,977
Fixed maturity securities, available-for-sale	78,149	[1]	60,467	[2]
JAPAN
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	6,103		3,630
Fixed maturity securities, available-for-sale	5,270		3,131
US Treasury and Government [Member]
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	1,897		2,725
Fixed maturity securities, available-for-sale	1,703	[1]	2,520	[2]
Canadian Province Of Quebec Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	1,591		1,467
Fixed maturity securities, available-for-sale	1,843		1,748
Canadian Province Of Ontario Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	1,180		1,019
Fixed maturity securities, available-for-sale	$ 1,291		$ 1,125
[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of September 30, 2024, the fair value of such investments was $921 million.

Investments (Amortized Cost and

Investments (Amortized Cost and Fair Value of Fixed Maturities by Contractual Maturities) (Details) - USD ($) $ in Millions	Sep. 30, 2024		Dec. 31, 2023
Available For Sale Securities Debt Maturities Amortized Cost
Due in one year or less	$ 1,699
Due after one year through five years	11,881
Due after five year through ten years	13,649
Due after ten years	45,155
Asset and mortgage-backed securities	9,222
Total	81,606		$ 64,977
Available For Sale Securities Debt Maturities Fair Value
Due in one year or less	1,701
Due after one year through five years	11,829
Due after five year through ten years	13,480
Due after ten years	42,210
Asset and mortgage-backed securities	8,929
Total	$ 78,149	[1]	$ 60,467	[2]
[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of September 30, 2024, the fair value of such investments was $921 million.

Investments (Amortized Cost a_2

Investments (Amortized Cost and Fair Value of Fixed Maturity Holdings by Industry Type) (Details) - USD ($) $ in Millions	Sep. 30, 2024		Dec. 31, 2023
Corporate Securities by Investment Sector And Credit Rating [Line Items]
Amortized Cost	$ 81,606		$ 64,977
Fixed maturity securities, available-for-sale	78,149	[1]	60,467	[2]
Corporate Debt Securities [Member]
Corporate Securities by Investment Sector And Credit Rating [Line Items]
Amortized Cost	53,327		42,014
Fixed maturity securities, available-for-sale	$ 51,087	[1]	$ 38,755	[2]
Percentage Of Total Corporate Fixed Maturity Security	100%		100%
Corporate Debt Securities [Member] | Finance
Corporate Securities by Investment Sector And Credit Rating [Line Items]
Amortized Cost	$ 17,482		$ 15,052
Fixed maturity securities, available-for-sale	$ 16,641		$ 13,789
Percentage Of Total Corporate Fixed Maturity Security	32.60%		35.60%
Corporate Debt Securities [Member] | Industrial
Corporate Securities by Investment Sector And Credit Rating [Line Items]
Amortized Cost	$ 27,697		$ 21,413
Fixed maturity securities, available-for-sale	$ 26,682		$ 19,935
Percentage Of Total Corporate Fixed Maturity Security	52.20%		51.40%
Corporate Debt Securities [Member] | Utility
Corporate Securities by Investment Sector And Credit Rating [Line Items]
Amortized Cost	$ 8,148		$ 5,549
Fixed maturity securities, available-for-sale	$ 7,764		$ 5,031
Percentage Of Total Corporate Fixed Maturity Security	15.20%		13%
[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of September 30, 2024, the fair value of such investments was $921 million.

Investments Investments (Allowa

Investments Investments (Allowance for Credit Loss Roll Forward) (Details) - Available-for-sale Securities [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Beginning Balance	$ 111	$ 75	$ 75	$ 37
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase	(10)		(42)	(45)
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold	0		(9)	(10)
Other-than-Temporary Impairment, Credit Losses Recognized in Earnings, Period Increase (Decrease)	(1)	(1)	11	2
Other Than Temporary Impairment Credit Losses Recognized In Earnings Write Offs	0	6	(1)	6
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending Balance	120	68	120	68
Corporate Debt Securities [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Beginning Balance	95	62	62	27
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase	(10)		(42)	(44)
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold	0		(9)	(10)
Other-than-Temporary Impairment, Credit Losses Recognized in Earnings, Period Increase (Decrease)	(1)	1	8	0
Other Than Temporary Impairment Credit Losses Recognized In Earnings Write Offs	0	6	(1)	6
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending Balance	104	55	104	55
Asset-backed Securities [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Beginning Balance	15	12	12	10
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase	0		0	0
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold	0		0	0
Other-than-Temporary Impairment, Credit Losses Recognized in Earnings, Period Increase (Decrease)	0	0	3	2
Other Than Temporary Impairment Credit Losses Recognized In Earnings Write Offs	0	0	0	0
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending Balance	15	12	15	12
Commercial Mortgage Backed Securities [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Beginning Balance	1	1	1	0
Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase	0		0	(1)
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold	0		0	0
Other-than-Temporary Impairment, Credit Losses Recognized in Earnings, Period Increase (Decrease)	0	0	0	0
Other Than Temporary Impairment Credit Losses Recognized In Earnings Write Offs	0	0	0	0
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending Balance	$ 1	$ 1	$ 1	$ 1

Investments (Fair Value and Los

Investments (Fair Value and Losses by Investment Category and Length of Time in a Loss Position) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 9,119	$ 4,857
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	298	183
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	32,122	36,678
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	4,776	5,370
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	41,241	41,535
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	5,074	5,553
Investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	8,714	4,562
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	282	147
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	31,475	35,764
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	4,661	5,186
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	40,189	40,326
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	4,943	5,333
Non-investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	405	295
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	16	36
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	647	914
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	115	184
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	1,052	1,209
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	131	220
Corporate Debt Securities [Member] | Investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	3,871	2,134
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	71	70
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	21,471	24,207
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	3,036	3,524
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	25,342	26,341
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	3,107	3,594
Corporate Debt Securities [Member] | Non-investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	392	295
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	14	36
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	413	649
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	62	121
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	805	944
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	76	157
Canadian and Canadian provincial governments | Investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	159	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	6	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	432	459
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	35	33
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	591	459
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	41	33
Residential mortgage-backed securities | Investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	0	115
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	3
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	636	681
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	76	99
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	636	796
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	76	102
Asset-backed Securities [Member] | Investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	1,054	336
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	22	5
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	2,039	3,025
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	148	223
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	3,093	3,361
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	170	228
Asset-backed Securities [Member] | Non-investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	13	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	2	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	44	68
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	5	10
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	57	68
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	7	10
Commercial mortgage-backed securities | Investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	188	160
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	12	5
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,156	1,328
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	96	190
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	1,344	1,488
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	108	195
Commercial mortgage-backed securities | Non-investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	0	4
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	1
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	0	4
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	0	1
US Government Agencies Debt Securities [Member] | Investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	264	614
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	2	10
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	711	717
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	210	204
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	975	1,331
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	212	214
US States and Political Subdivisions Debt Securities [Member] | Investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	0	73
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	532	864
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	81	128
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	532	937
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	81	129
Debt Security, Government, Non-US [Member] | Investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	770	254
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	10	3
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	2,009	2,290
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	302	333
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	2,779	2,544
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	312	336
Debt Security, Government, Non-US [Member] | Non-investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	190	193
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	48	52
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	190	193
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	48	52
JAPAN | Investment grade securities
Estimated Fair Values And Gross Unrealized Losses, OTTI Impairment Losses Reported In AOCI [Line Items]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	2,408	876
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	159	50
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	2,489	2,193
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	677	452
Debt Securities, Available-for-sale, Unrealized Loss Position, Total	4,897	3,069
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 836	$ 502

Investments (Investment Income

Investments (Investment Income Net of Related Expenses) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Major Categories Of Investment Income Net of Expenses [Line Items]
Investment revenue	$ 1,228	$ 965	$ 3,359	$ 2,756
Investment expense	(40)	(43)	(128)	(121)
Investment income, net of related expenses	1,188	922	3,231	2,635
Available-for-sale Securities [Member]
Major Categories Of Investment Income Net of Expenses [Line Items]
Investment revenue	933	707	2,574	2,035
Equity securities
Major Categories Of Investment Income Net of Expenses [Line Items]
Investment revenue	2	2	5	5
Mortgage Loans on Real Estate [Member]
Major Categories Of Investment Income Net of Expenses [Line Items]
Investment revenue	103	84	290	238
Policy loans
Major Categories Of Investment Income Net of Expenses [Line Items]
Investment revenue	14	13	42	39
Funds withheld at interest
Major Categories Of Investment Income Net of Expenses [Line Items]
Investment revenue	88	88	253	240
Short-term Investments [Member]
Major Categories Of Investment Income Net of Expenses [Line Items]
Investment revenue	48	28	126	71
Partnership Interest
Major Categories Of Investment Income Net of Expenses [Line Items]
Investment revenue	46	41	74	114
Other invested assets
Major Categories Of Investment Income Net of Expenses [Line Items]
Investment revenue	$ (6)	$ 2	$ (5)	$ 14

Investments (Investment Related

Investments (Investment Related Gains (Losses) Net) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Investments [Abstract]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	$ (9)	$ 7	$ (45)	$ (31)
Gain on investment activity	72	12	172	54
Available-for-sale Securities, Realized Losses, Excluding Other than Temporary Impairments	(113)	(61)	(477)	(173)
Gain (Loss) on Sale of Equity Investments	6	(2)	5	(4)
Other impairment losses and change in mortgage loan provision	(12)	(17)	(20)	(23)
Derivatives and other, net	(14)	7	(2)	24
Total investment related gains (losses), net	(78)	(126)	(498)	(326)
Change In Fair Value Of Certain Limited Partnership Investments And Other, Net	17	25	18	32
Impairment Losses On Debt Securities Available for Sale	0	0	(1)	(1)
Gain (Loss) on Sale of Derivatives	87	(98)	(131)	(222)
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net	(112)	1	(9)	18
Gains (Losses) on Sales of Other Real Estate	$ 0	$ 0	$ (8)	$ 0

Investments (Fixed Maturity Sec

Investments (Fixed Maturity Securities Pledged And Received As Collateral) (Details) - USD ($) $ in Millions	Sep. 30, 2024		Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	$ 81,606		$ 64,977
Fixed maturity securities, available-for-sale	78,149	[1]	60,467	[2]
Collateral Fixed Maturity Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	891		572
Fixed maturity securities, available-for-sale	814		517
Collateral Received Fixed Maturity Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Fixed maturity securities, available-for-sale	2,419		1,827
Reported Value Measurement [Member]
Debt Securities, Available-for-sale [Line Items]
Assets Held-in-trust	47,251		32,758
Estimate of Fair Value Measurement [Member]
Debt Securities, Available-for-sale [Line Items]
Assets Held-in-trust	45,545		30,359
Deposits
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	12		12
Fixed maturity securities, available-for-sale	10		9
Federal Home Loan Bank Certificates and Obligations (FHLB)
Debt Securities, Available-for-sale [Line Items]
Available for Sale at Fair value - Amortized cost	72		63
Fixed maturity securities, available-for-sale	$ 72		$ 63
[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of September 30, 2024, the fair value of such investments was $921 million.

Investments (Borrowed Securitie

Investments (Borrowed Securities Repurchased Securities And Repurchased Reversed Repurchased Securities) (Details) - USD ($) $ in Millions		Sep. 30, 2024	Dec. 31, 2023
Securities Financing Transaction, Fair Value
Securities Financing Transaction [Line Items]
Securities Loaned	[1]	$ 782	$ 732
Securities Borrowed	[2]	1,042	1,013
Cash Collateral for Borrowed Securities	[3]	0	0
Securities Sold under Agreements to Repurchase
Securities Financing Transaction [Line Items]
Securities Loaned	[1]	1,923	1,333
Securities Borrowed	[2]	930	517
Cash Collateral for Borrowed Securities	[3]	$ 1,044	$ 820
[1] Securities loaned or pledged through securities lending transactions or sold to counterparties through repurchase transactions are included within fixed maturity securities. Collateral associated with certain securities lending transactions is not included within this table as the collateral pledged to the counterparty is the right to reinsurance treaty cash flows. Certain securities lending transactions do not require collateral. Securities borrowed or received as collateral through securities lending transactions or purchased from counterparties through reverse repurchase transactions are not reflected on the condensed consolidated balance sheets. A payable for the cash received by the Company is included within other liabilities.

Investments (Securities Pledged

Investments (Securities Pledged as Collateral Related to Repurchase Reverse Repurchase Program) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	$ 782	$ 732
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	1,923	1,333
Obligation to Return Securities Received as Collateral	2,705	2,065
Corporate Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	418	135
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	554	553
Debt Security, Government, Non-US [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	21	18
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	103	106
US States and Political Subdivisions Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	6	11
Asset-backed Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	15	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	299	229
Commercial Mortgage Backed Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	48	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	254	221
Residential mortgage-backed securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	14	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	52	52
JAPAN
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	251	568
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	393	158
US Government Agencies Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	9	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	268	14
Maturity Overnight [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Obligation to Return Securities Received as Collateral	0	0
Maturity Overnight [Member] | Corporate Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity Overnight [Member] | Debt Security, Government, Non-US [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity Overnight [Member] | US States and Political Subdivisions Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
Maturity Overnight [Member] | Asset-backed Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity Overnight [Member] | Commercial Mortgage Backed Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity Overnight [Member] | Residential mortgage-backed securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity Overnight [Member] | JAPAN
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity Overnight [Member] | US Government Agencies Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity up to 30 days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	77	88
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Obligation to Return Securities Received as Collateral	77	88
Maturity up to 30 days [Member] | Corporate Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	77	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity up to 30 days [Member] | Debt Security, Government, Non-US [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity up to 30 days [Member] | US States and Political Subdivisions Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
Maturity up to 30 days [Member] | Asset-backed Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity up to 30 days [Member] | Commercial Mortgage Backed Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity up to 30 days [Member] | Residential mortgage-backed securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity up to 30 days [Member] | JAPAN
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	88
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity up to 30 days [Member] | US Government Agencies Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity 30 to 90 Days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	227	107
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Obligation to Return Securities Received as Collateral	227	107
Maturity 30 to 90 Days [Member] | Corporate Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	142	94
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity 30 to 90 Days [Member] | Debt Security, Government, Non-US [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	11	13
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity 30 to 90 Days [Member] | US States and Political Subdivisions Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
Maturity 30 to 90 Days [Member] | Asset-backed Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	12	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity 30 to 90 Days [Member] | Commercial Mortgage Backed Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	48	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity 30 to 90 Days [Member] | Residential mortgage-backed securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	14	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity 30 to 90 Days [Member] | JAPAN
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity 30 to 90 Days [Member] | US Government Agencies Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	0	0
Maturity over 90 days [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	478	537
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	1,923	1,333
Obligation to Return Securities Received as Collateral	2,401	1,870
Maturity over 90 days [Member] | Corporate Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	199	41
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	554	553
Maturity over 90 days [Member] | Debt Security, Government, Non-US [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	10	5
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	103	106
Maturity over 90 days [Member] | US States and Political Subdivisions Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	6	11
Maturity over 90 days [Member] | Asset-backed Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	3	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	299	229
Maturity over 90 days [Member] | Commercial Mortgage Backed Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	254	221
Maturity over 90 days [Member] | Residential mortgage-backed securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	0	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	52	52
Maturity over 90 days [Member] | JAPAN
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	251	480
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	393	158
Maturity over 90 days [Member] | US Government Agencies Debt Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Loaned, Fair Value of Collateral	9	0
FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	$ 268	$ 14

Investments (Mortgage Loans by

Investments (Mortgage Loans by Property Type) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Recorded investment	$ 8,493		$ 7,459
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	(18)		(15)
Allowance for Loan and Lease Losses, Real Estate	(87)	$ (75)	(67)	$ (74)	$ (57)	$ (51)
Mortgage loans on real estate (net of valuation allowances)	$ 8,388		$ 7,377
Percentage of total	100%		100%
Office building
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Recorded investment	$ 1,709		$ 1,700
Percentage of total	20.10%		22.80%
Retail
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Recorded investment	$ 2,748		$ 2,437
Percentage of total	32.40%		32.70%
Industrial
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Recorded investment	$ 2,503		$ 1,947
Percentage of total	29.40%		26.10%
Apartment
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Recorded investment	$ 1,076		$ 913
Percentage of total	12.70%		12.20%
Other commercial
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Recorded investment	$ 40		$ 49
Percentage of total	0.50%		0.70%
Hotel
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Recorded investment	$ 417		$ 413
Percentage of total	4.90%		5.50%

Investments (Mortgage Loans b_2

Investments (Mortgage Loans by Maturity Date) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 8,493	$ 7,459
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	100%	100%
Due within five years
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 3,944	$ 3,228
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	46.40%	43.30%
Due after five years through ten years
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 3,643	$ 3,334
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	42.90%	44.70%
Due after ten years
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 906	$ 897
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	10.70%	12%

Investments (Mortgage Loans b_3

Investments (Mortgage Loans by Credit Quality Indicator) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 8,493	$ 7,459
Construction Loan	$ 58	$ 46
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	100%	100%
Mortgage Loans By Credit Quality Indicator Range One [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 4,625	$ 4,017
Construction Loan	$ 13	$ 46
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	54.50%	53.90%
Mortgage Loans By Credit Quality Indicator Range Two [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 2,493	$ 2,145
Construction Loan	$ 45	$ 0
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	29.40%	28.80%
Mortgage Loans By Credit Quality Indicator Range Three [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 875	$ 929
Construction Loan	$ 0	$ 0
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	10.20%	12.40%
Mortgage Loans By Credit Quality Indicator Range Four [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 500	$ 368
Construction Loan	$ 0	$ 0
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	5.90%	4.90%
Debt Service Coverage Ratio Range One [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 7,551	$ 6,660
Debt Service Coverage Ratio Range One [Member] | Mortgage Loans By Credit Quality Indicator Range One [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	4,327	3,672
Debt Service Coverage Ratio Range One [Member] | Mortgage Loans By Credit Quality Indicator Range Two [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	2,148	1,947
Debt Service Coverage Ratio Range One [Member] | Mortgage Loans By Credit Quality Indicator Range Three [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	737	843
Debt Service Coverage Ratio Range One [Member] | Mortgage Loans By Credit Quality Indicator Range Four [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	339	198
Debt Service Coverage Ratio Range Two [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	596	548
Debt Service Coverage Ratio Range Two [Member] | Mortgage Loans By Credit Quality Indicator Range One [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	202	272
Debt Service Coverage Ratio Range Two [Member] | Mortgage Loans By Credit Quality Indicator Range Two [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	237	154
Debt Service Coverage Ratio Range Two [Member] | Mortgage Loans By Credit Quality Indicator Range Three [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	102	52
Debt Service Coverage Ratio Range Two [Member] | Mortgage Loans By Credit Quality Indicator Range Four [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	55	70
Debt Service Coverage Ratio Range Three [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	288	205
Debt Service Coverage Ratio Range Three [Member] | Mortgage Loans By Credit Quality Indicator Range One [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	83	27
Debt Service Coverage Ratio Range Three [Member] | Mortgage Loans By Credit Quality Indicator Range Two [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	63	44
Debt Service Coverage Ratio Range Three [Member] | Mortgage Loans By Credit Quality Indicator Range Three [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	36	34
Debt Service Coverage Ratio Range Three [Member] | Mortgage Loans By Credit Quality Indicator Range Four [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 106	$ 100

Investments (Internal Credit Ra

Investments (Internal Credit Rating Disclosure) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 8,493	$ 7,459
High Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	4,401	4,212
Internal Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	3,694	2,928
Average Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	263	296
Internal Noninvestment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	23	7
Watch List [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	112	16
Year Of Origination 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,082
Year Of Origination 2024 | High Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	352
Year Of Origination 2024 | Internal Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	730
Year Of Origination 2024 | Average Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Year Of Origination 2024 | Internal Noninvestment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Year Of Origination 2024 | Watch List [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0
Year Of Origination 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,237	1,241
Year Of Origination 2023 | High Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	473	475
Year Of Origination 2023 | Internal Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	752	754
Year Of Origination 2023 | Average Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	12	12
Year Of Origination 2023 | Internal Noninvestment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Year Of Origination 2023 | Watch List [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Year Of Origination 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,369	1,303
Year Of Origination 2022 | High Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	641	635
Year Of Origination 2022 | Internal Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	728	668
Year Of Origination 2022 | Average Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Year Of Origination 2022 | Internal Noninvestment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Year Of Origination 2022 | Watch List [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Year Of Origination 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,055	957
Year Of Origination 2021 | High Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	613	573
Year Of Origination 2021 | Internal Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	442	384
Year Of Origination 2021 | Average Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Year Of Origination 2021 | Internal Noninvestment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Year Of Origination 2021 | Watch List [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Year Of Origination 2020 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	525	567
Year Of Origination 2020 [Member] | High Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	268	304
Year Of Origination 2020 [Member] | Internal Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	239	245
Year Of Origination 2020 [Member] | Average Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	18	18
Year Of Origination 2020 [Member] | Internal Noninvestment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Year Of Origination 2020 [Member] | Watch List [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
Year Of Origination 2019 [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss		867
Year Of Origination 2019 [Member] | High Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss		491
Year Of Origination 2019 [Member] | Internal Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss		313
Year Of Origination 2019 [Member] | Average Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss		63
Year Of Origination 2019 [Member] | Internal Noninvestment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss		0
Year Of Origination 2019 [Member] | Watch List [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss		0
Year Of Origination Prior Periods [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	3,225	2,524
Year Of Origination Prior Periods [Member] | High Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	2,054	1,734
Year Of Origination Prior Periods [Member] | Internal Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	803	564
Year Of Origination Prior Periods [Member] | Average Investment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	233	203
Year Of Origination Prior Periods [Member] | Internal Noninvestment Grade [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	23	7
Year Of Origination Prior Periods [Member] | Watch List [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 112	$ 16

Investments (Financing Receivab

Investments (Financing Receivables Past Due) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 8,493	$ 7,459
Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	8,441	7,431
Financial Asset, 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	23	28
Financial Asset, 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	6	0
Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 23	$ 0

Investments (Loan Valuation All

Investments (Loan Valuation Allowance for Mortgage Loans) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Allowance For Loan And Lease Losses Roll Forward
Balance, Beginning of Period	$ 75	$ 57	$ 67	$ 51
Provision (release)	12	17	20	23
Balance, End of Period	$ 87	$ 74	$ 87	$ 74

Investments (Limited Partnershi

Investments (Limited Partnerships and Real Estate Joint Ventures) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Real Estate [Line Items]
Real Estate Investments, Joint Ventures	$ 2,972	$ 2,635
Equity Method Investments
Real Estate [Line Items]
Real Estate Investments, Joint Ventures	1,029	925
Limited partnership Fair Value Member
Real Estate [Line Items]
Real Estate Investments, Joint Ventures	920	856
Corporate Joint Venture
Real Estate [Line Items]
Real Estate Investments, Joint Ventures	968	783
Limited Partnership Cost Method
Real Estate [Line Items]
Real Estate Investments, Joint Ventures	$ 55	$ 71

Investments (Other Invested Ass

Investments (Other Invested Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Other invested assets	$ 1,361	$ 1,171
Equity Release Mortgages [Member]
Other invested assets	1,026	944
Derivatives
Other invested assets	199	97
Other
Other invested assets	64	67
Federal Home Loan Bank Certificates and Obligations (FHLB)
Other invested assets	$ 72	$ 63

Investments (Narrative) (Detail

Investments (Narrative) (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2024 USD ($) securities	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) securities
Investment Narrative [Line Items]
Securities As Percentage Of Consolidated Stockholder Equity	10%
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	100%		100%
Funds withheld at interest	$ 5,545		$ 5,683
Funds Held Under Reinsurance Agreements Asset Specific Client	$ 3,100
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | securities	5,308,000		5,788
Financing Receivable, before Allowance for Credit Loss	$ 8,493		$ 7,459
Real Estate Owned, Transfer to Real Estate Owned	23	$ 36
Accounts Receivable, Noncurrent, Nonaccrual	23	41
Real Estate Held For Sale Transferred To Held For Use	21
Impaired Financing Receivable Recorded Investment Before Allowance	$ 90	$ 68
CALIFORNIA
Investment Narrative [Line Items]
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	12.40%
TEXAS
Investment Narrative [Line Items]
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	9.70%
CANADA
Investment Narrative [Line Items]
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	7.60%
UNITED KINGDOM
Investment Narrative [Line Items]
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	2.60%
WASHINGTON
Investment Narrative [Line Items]
Mortgage Loans On Real Estate Commercial And Consumer Net Percentage Of Total	6.30%

Derivative Instruments (Gross N

Derivative Instruments (Gross Notional Amount and Fair Value of Derivatives Contracts) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Notional Amount	$ 33,994	$ 32,104
Carrying Value / Fair Value of Assets	270	154
Derivative Liability, Fair Value, Gross Liability	287	254
Derivative Asset, Subject to Master Netting Arrangement, after Offset	544	510
Derivative Liability, Subject to Master Netting Arrangement, after Offset	1,126	1,196
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	25,711	27,306
Carrying Value / Fair Value of Assets	407	478
Derivative Liability, Fair Value, Gross Liability	867	949
Not Designated as Hedging Instrument | Interest Rate Swaps
Derivative [Line Items]
Notional Amount	1,796	1,609
Carrying Value / Fair Value of Assets	6	4
Derivative Liability, Fair Value, Gross Liability	4	3
Not Designated as Hedging Instrument | Foreign Currency Forwards
Derivative [Line Items]
Notional Amount	1,142	809
Derivative Asset, Subject to Master Netting Arrangement, after Offset	55	36
Derivative Liability, Subject to Master Netting Arrangement, after Offset	1	0
Not Designated as Hedging Instrument | Financial Futures
Derivative [Line Items]
Notional Amount	225	255
Carrying Value / Fair Value of Assets	0	0
Derivative Liability, Fair Value, Gross Liability	0	0
Not Designated as Hedging Instrument | Consumer Price Index Swap [Member]
Derivative [Line Items]
Notional Amount	445	468
Carrying Value / Fair Value of Assets	7	11
Derivative Liability, Fair Value, Gross Liability	3	3
Not Designated as Hedging Instrument | Synthetic Guaranteed Investment Contracts
Derivative [Line Items]
Notional Amount	15,395	16,135
Carrying Value / Fair Value of Assets	0	0
Derivative Liability, Fair Value, Gross Liability	0	0
Not Designated as Hedging Instrument | Embedded Derivatives In Modified Coinsurance Or Funds Withheld Arrangements
Derivative [Line Items]
Notional Amount	0	0
Carrying Value / Fair Value of Assets	274	356
Derivative Liability, Fair Value, Gross Liability	454	527
Not Designated as Hedging Instrument | Embedded Derivatives In Indexed Annuity [Member]
Derivative [Line Items]
Notional Amount	0	0
Carrying Value / Fair Value of Assets	0	0
Derivative Liability, Fair Value, Gross Liability	385	415
Not Designated as Hedging Instrument | Currency Swap [Member]
Derivative [Line Items]
Notional Amount	150	150
Derivative Asset, Subject to Master Netting Arrangement, after Offset	35	27
Derivative Liability, Subject to Master Netting Arrangement, after Offset	0	0
Not Designated as Hedging Instrument | Interest Rate Swaption
Derivative [Line Items]
Notional Amount	2,266	5,555
Carrying Value / Fair Value of Assets	0	7
Derivative Liability, Fair Value, Gross Liability	0	0
Not Designated as Hedging Instrument | Total Return Swap
Derivative [Line Items]
Notional Amount	1,075	500
Carrying Value / Fair Value of Assets	21	24
Derivative Liability, Fair Value, Gross Liability	17	0
Not Designated as Hedging Instrument | Interest Rate Future
Derivative [Line Items]
Notional Amount	0	97
Carrying Value / Fair Value of Assets	0	0
Derivative Liability, Fair Value, Gross Liability	0	0
Not Designated as Hedging Instrument | Foreign Exchange Option
Derivative [Line Items]
Notional Amount	350	0
Derivative Asset, Subject to Master Netting Arrangement, after Offset	2	0
Derivative Liability, Subject to Master Netting Arrangement, after Offset	0	0
Not Designated as Hedging Instrument | Equity Option
Derivative [Line Items]
Notional Amount	141	253
Carrying Value / Fair Value of Assets	2	8
Derivative Liability, Fair Value, Gross Liability	0	0
Not Designated as Hedging Instrument | Credit Default Swaps
Derivative [Line Items]
Notional Amount	2,726	1,475
Carrying Value / Fair Value of Assets	5	5
Derivative Liability, Fair Value, Gross Liability	3	1
Designated As Hedging Instrument
Derivative [Line Items]
Notional Amount	8,283	4,798
Derivative Asset, Subject to Master Netting Arrangement, after Offset	137	32
Derivative Liability, Subject to Master Netting Arrangement, after Offset	259	247
Designated As Hedging Instrument | Interest Rate Swaps
Derivative [Line Items]
Notional Amount	3,269	1,770
Derivative Asset, Subject to Master Netting Arrangement, after Offset	89	9
Derivative Liability, Subject to Master Netting Arrangement, after Offset	78	86
Designated As Hedging Instrument | Foreign Currency Forwards
Derivative [Line Items]
Notional Amount	1,315	1,143
Derivative Asset, Subject to Master Netting Arrangement, after Offset	4	5
Derivative Liability, Subject to Master Netting Arrangement, after Offset	9	17
Designated As Hedging Instrument | Currency Swap [Member]
Derivative [Line Items]
Notional Amount	2,026	809
Derivative Asset, Subject to Master Netting Arrangement, after Offset	37	7
Derivative Liability, Subject to Master Netting Arrangement, after Offset	71	64
Designated As Hedging Instrument | Forward Contracts [Member]
Derivative [Line Items]
Notional Amount	1,673	1,076
Derivative Asset, Subject to Master Netting Arrangement, after Offset	7	11
Derivative Liability, Subject to Master Netting Arrangement, after Offset	$ 101	$ 80

Derivative Instruments (Fair Va

Derivative Instruments (Fair Value Hedge Attributable to Foreign Currency) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Foreign Exchange Contract | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	$ 0	$ 0	$ 0	$ 0
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	0	0	0	0
Foreign Exchange Contract | Insurance Claims [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	0	0	0
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	0	0	0	0
Foreign Exchange Contract | Investment Income (Expense)
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	(4)	2	(7)
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	0	3	(4)	5
Interest Rate Contract | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	42	(2)	37	(2)
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	(45)	2	(43)	2
Interest Rate Contract | Insurance Claims [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	0	0	0
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	0	0	0	0
Interest Rate Contract | Investment Income (Expense)
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	0	0	0
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	0	$ 0	0	$ 0
Financial Futures | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0		0
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	0		0
Financial Futures | Insurance Claims [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	31		27
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	(34)		(32)
Financial Futures | Investment Income (Expense)
Derivative Instruments, Gain (Loss) [Line Items]
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0		0
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	$ 0		$ 0

Derivative Instruments (Fair _2

Derivative Instruments (Fair Value Hedge Cumulative) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Hedged Asset, Fair Value Hedge	$ 0	$ 89
Interest Rate Contract
Derivative Instruments, Gain (Loss) [Line Items]
Hedged Liability, Fair Value Hedge	(970)	(25)
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	(43)	(1)
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	(23)	1
Other Contract
Derivative Instruments, Gain (Loss) [Line Items]
Hedged Liability, Fair Value Hedge	(672)	0
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	(32)	0
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	$ (25)	$ 0

Derivative Instruments (Current

Derivative Instruments (Current Period Cash Flow Hedges in AOCI (loss) before Taxes) (Details) - Cash Flow Hedging [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	$ (229)	$ (351)	$ (229)	$ (351)	$ (413)	$ (218)	$ (228)	$ (205)
Derivative Gain Loss Net Deferred In OCI	(167)	128	44	154
Investment Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(20)	(8)	(42)	(15)
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ (3)	$ (3)	$ (9)	$ (7)

Derivative Instruments (Cash Fl

Derivative Instruments (Cash Flow Hedges) (Details) - Cash Flow Hedging [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ 167	$ (128)	$ (44)	$ (154)
Investment Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	20	8	42	15
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	3	3	9	7
Interest Rate Swaps
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	57	(113)	33	(107)
Interest Rate Swaps | Investment Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	3	4	9	4
Interest Rate Swaps | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	3	3	9	7
Currency Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	110	(15)	(11)	(47)
Currency Swap [Member] | Investment Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	17	(4)	33	11
Currency Swap [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	$ 0	$ 0	$ 0	$ 0

Derivative Instruments (Hedges

Derivative Instruments (Hedges of Net Investments in Foreign Operations) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Derivatives, Fair Value [Line Items]
Net Derivatives Gains (Losses) Deferred in AOCI	$ (12)	$ 29	$ 24	$ 8
Currency Swap [Member]
Derivatives, Fair Value [Line Items]
Net Derivatives Gains (Losses) Deferred in AOCI	0	0	0	0
Foreign Currency Forwards
Derivatives, Fair Value [Line Items]
Net Derivatives Gains (Losses) Deferred in AOCI	$ (12)	$ 29	$ 24	$ 8

Derivative Instruments (Non Hed

Derivative Instruments (Non Hedging Derivatives and Embedded Derivatives Effect on Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	$ (78)	$ (126)	$ (498)	$ (326)
Interest credited	310	223	795	647
Not Designated as Hedging Instrument
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	(40)	(93)	(165)	(188)
Gain Loss On Investments Related To Change In Fair Value Of Derivatives Excluding Embedded Derivatives	87	(97)	(129)	(220)
Not Designated as Hedging Instrument | Interest Rate Swaps
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	13	(64)	(31)	(74)
Not Designated as Hedging Instrument | Financial Futures
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	(12)	11	(31)	(8)
Not Designated as Hedging Instrument | Currency Swap [Member]
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	(7)	8	15	20
Not Designated as Hedging Instrument | Foreign Currency Forwards
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	77	(37)	(85)	(130)
Not Designated as Hedging Instrument | Consumer Price Index Swap [Member]
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	(1)	0	(2)	7
Not Designated as Hedging Instrument | Equity Options
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	1	3	(4)	(22)
Not Designated as Hedging Instrument | Embedded Derivatives In Modified Coinsurance Or Funds Withheld Arrangements
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	(112)	1	(9)	18
Not Designated as Hedging Instrument | Embedded Derivatives In Indexed Annuity [Member]
Income Affect Of Non Hedging Derivatives [Line Items]
Interest credited	15	3	27	14
Not Designated as Hedging Instrument | Interest Rate Future
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	0	0	2	2
Not Designated as Hedging Instrument | Total Return Swap
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	7	(8)	0	0
Not Designated as Hedging Instrument | Interest Rate Swaption
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	(3)	16	(6)	(10)
Not Designated as Hedging Instrument | Credit Default Swaps
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	10	(26)	14	(5)
Not Designated as Hedging Instrument | Foreign Exchange Option
Income Affect Of Non Hedging Derivatives [Line Items]
Total investment related gains (losses), net	$ 2	$ 0	$ (1)	$ 0

Derivative Instruments (Exposur

Derivative Instruments (Exposure from Credit Derivatives by Rating of the Underlying Credits) (Details) - USD ($) $ in Millions		6 Months Ended	9 Months Ended
		Jun. 30, 2024	Sep. 30, 2024	Dec. 31, 2023
Credit Derivatives [Line Items]
Credit Derivative Current Fair Value	[1]		$ 2	$ 4
Maximum Potential Future Exposure on Credit Risk Derivatives	[1],[2]		$ 2,726	1,475
Derivative Average Remaining Maturity	[1],[3]	8 years 6 months	6 years 8 months 12 days
Standard Poors AAA To A Minus Ratings [Member] | Single Name Credit Default Swaps [Member]
Credit Derivatives [Line Items]
Credit Derivative Current Fair Value	[1]		$ (1)	2
Maximum Potential Future Exposure on Credit Risk Derivatives	[1],[2]		$ 410	420
Derivative Average Remaining Maturity	[1],[3]	18 years 1 month 6 days	17 years 9 months 18 days
Standard Poors BBB Rating [Member] | Single Name Credit Default Swaps [Member]
Credit Derivatives [Line Items]
Credit Derivative Current Fair Value	[1]		$ 3	4
Maximum Potential Future Exposure on Credit Risk Derivatives	[1],[2]		$ 145	165
Derivative Average Remaining Maturity	[1],[3]	2 years 9 months 18 days	2 years 3 months 18 days
Standard Poors BBB Rating [Member] | Credit Default Swaps Referencing Indices [Member]
Credit Derivatives [Line Items]
Credit Derivative Current Fair Value	[1]		$ 0	(1)
Maximum Potential Future Exposure on Credit Risk Derivatives	[1],[2]		$ 2,156	880
Derivative Average Remaining Maturity	[1],[3]	5 years	4 years 10 months 24 days
Standard Poors BBB Rating [Member] | Credit Default Subtotal [Member]
Credit Derivatives [Line Items]
Credit Derivative Current Fair Value	[1]		$ 3	3
Maximum Potential Future Exposure on Credit Risk Derivatives	[1],[2]		$ 2,301	1,045
Derivative Average Remaining Maturity	[1],[3]	4 years 8 months 12 days	4 years 8 months 12 days
Standard & Poor's, BB Rating [Member]
Credit Derivatives [Line Items]
Derivative Average Remaining Maturity	[1],[2]	2 years 2 months 12 days	1 year 8 months 12 days
Standard & Poor's, BB Rating [Member] | Single Name Credit Default Swaps [Member]
Credit Derivatives [Line Items]
Credit Derivative Current Fair Value	[1]		$ 0	(1)
Maximum Potential Future Exposure on Credit Risk Derivatives	[1],[2]		$ 5	10
Standard & Poor's, B Rating
Credit Derivatives [Line Items]
Derivative Average Remaining Maturity	[3]	0 years	1 year 6 months
Standard & Poor's, B Rating | Single Name Credit Default Swaps [Member]
Credit Derivatives [Line Items]
Credit Derivative Current Fair Value	[1]		$ 0	0
Maximum Potential Future Exposure on Credit Risk Derivatives	[2]		$ 10	$ 0
[1] The rating agency designations are based on ratings from Standard and Poor’s (“S&P”). Assumes the value of the referenced credit obligations is zero. The weighted average years to maturity of the credit default swaps is calculated based on weighted average notional amounts.

Derivative Instruments (Derivat

Derivative Instruments (Derivative Instruments Offsetting Balance Sheet) (Details) - USD ($) $ in Millions		Sep. 30, 2024	Dec. 31, 2023
Derivative Assets [Abstract]
Gross Amounts Offset in the Balance Sheet		$ (71)	$ (57)
Derivative Liabilities [Abstract]
Gross Amounts Offset in the Balance Sheet		(71)	(57)
Net Amounts Presented in the Balance Sheet		51	206
Derivative Asset, Fair Value, Gross Asset		270	154
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral		199	97
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Security Not Offset	[1]	(199)	(97)
Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction		0	0
Derivative Liability, Fair Value, Gross Liability		287	254
Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral		216	197
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset	[1]	(216)	(197)
Derivative Liability, Subject to Master Netting Arrangement, after Offset and Deduction		$ 0	$ 0
[1] Includes initial margin posted to a central clearing partner for financial instruments and excludes the excess of collateral received/pledged from/to the counterparty.

Derivative Instruments (Narrati

Derivative Instruments (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Cumulative Foreign Currency Translation Gain Loss Recorded In Accumulated Other Comprehensive Income Loss For Terminated Net Investment In Foreign Operations Hedges	$ 207	$ 183
Counterparty Credit Derivative Exposure	16
Investment Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	6
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	$ 28

Fair Value of Assets and Liab_3

Fair Value of Assets and Liabilities (Balances of Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Millions	Sep. 30, 2024		Dec. 31, 2023
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	$ 78,149	[1]	$ 60,467	[2]
Equity Method Investments, Fair Value Disclosure	155	[1]	139	[2]
Funds withheld at interest embedded derivatives	(231)	[1]	(377)	[2]
Funds Held Under Reinsurance Agreements, Asset Fair Value Disclosure	60	[1]	54	[2]
Cash and cash equivalents	3,530	[1]	1,335	[2]
Short-term investments	345	[1]	187	[2]
Derivative Assets (Liabilities), at Fair Value, Net	199	[1]	97	[2]
Investments, Fair Value Disclosure	218	[1]	119	[2]
Assets, Fair Value Disclosure	82,226	[1]	61,924	[2]
Liabilities Fair Value Disclosure
Fair Value Measured On Recurring Basis Guaranteed Interest Contracts Embedded Derivatives	385		415
Funds Held under Reinsurance Agreements, Liability	(4,809)		(4,483)
Other liabilities	(216)		(197)
Financial Liabilities Fair Value Disclosure	550		406
Fair Value, Net Asset (Liability)	921		856
Derivative Liability	(51)		(206)
Fair Value Option Contractholder Directed Unit Linked Investments [Member]
Assets Fair Value Disclosure
Investments, Fair Value Disclosure	19	[1]	22	[2]
Corporate Debt Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	51,087	[1]	38,755	[2]
Canadian and Canadian provincial governments
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	4,970	[1]	3,917	[2]
Residential mortgage-backed securities
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	1,318	[1]	1,079	[2]
Asset-backed Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	5,373	[1]	4,429	[2]
Assets, Fair Value Disclosure	285		268
Commercial Mortgage Backed Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	2,238	[1]	1,773	[2]
US Treasury and Government [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	1,703	[1]	2,520	[2]
US States and Political Subdivisions Debt Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	821	[1]	1,114	[2]
Debt Security, Government, Non-US [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	5,369	[1]	3,749	[2]
Japanese Government
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	5,270	[1]	3,131	[2]
Fair Value Inputs Level 1 Member
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	1,608	[1]	2,426	[2]
Equity Method Investments, Fair Value Disclosure	73	[1]	69	[2]
Funds withheld at interest embedded derivatives	0	[1]	0	[2]
Funds Held Under Reinsurance Agreements, Asset Fair Value Disclosure	0	[1]	0	[2]
Cash and cash equivalents	3,530	[1]	1,322	[2]
Short-term investments	160	[1]	90	[2]
Derivative Assets (Liabilities), at Fair Value, Net	0	[1]	0	[2]
Investments, Fair Value Disclosure	0	[1]	0	[2]
Assets, Fair Value Disclosure	5,371	[1]	3,907	[2]
Liabilities Fair Value Disclosure
Fair Value Measured On Recurring Basis Guaranteed Interest Contracts Embedded Derivatives	0		0
Other liabilities	0		0
Financial Liabilities Fair Value Disclosure	0		0
Derivative Liability	0		0
Fair Value Inputs Level 1 Member | Fair Value Option Contractholder Directed Unit Linked Investments [Member]
Assets Fair Value Disclosure
Investments, Fair Value Disclosure	0	[1]	0	[2]
Fair Value Inputs Level 1 Member | Corporate Debt Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	0	[2]
Fair Value Inputs Level 1 Member | Canadian and Canadian provincial governments
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	0	[2]
Fair Value Inputs Level 1 Member | Residential mortgage-backed securities
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	0	[2]
Fair Value Inputs Level 1 Member | Asset-backed Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	0	[2]
Fair Value Inputs Level 1 Member | Commercial Mortgage Backed Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	0	[2]
Fair Value Inputs Level 1 Member | US Treasury and Government [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	1,608	[1]	2,426	[2]
Fair Value Inputs Level 1 Member | US States and Political Subdivisions Debt Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	0	[2]
Fair Value Inputs Level 1 Member | Debt Security, Government, Non-US [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	0	[2]
Fair Value Inputs Level 1 Member | Japanese Government
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	0	[2]
Fair Value Inputs Level 2 Member
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	68,802	[1]	51,622	[2]
Equity Method Investments, Fair Value Disclosure	0	[1]	0	[2]
Funds withheld at interest embedded derivatives	0	[1]	0	[2]
Funds Held Under Reinsurance Agreements, Asset Fair Value Disclosure	0	[1]	0	[2]
Cash and cash equivalents	0	[1]	13	[2]
Short-term investments	174	[1]	95	[2]
Derivative Assets (Liabilities), at Fair Value, Net	199	[1]	97	[2]
Investments, Fair Value Disclosure	218	[1]	119	[2]
Assets, Fair Value Disclosure	69,194	[1]	51,849	[2]
Liabilities Fair Value Disclosure
Fair Value Measured On Recurring Basis Guaranteed Interest Contracts Embedded Derivatives	0		0
Other liabilities	(216)		(197)
Financial Liabilities Fair Value Disclosure	216		197
Derivative Liability	0		0
Fair Value Inputs Level 2 Member | Fair Value Option Contractholder Directed Unit Linked Investments [Member]
Assets Fair Value Disclosure
Investments, Fair Value Disclosure	19	[1]	22	[2]
Fair Value Inputs Level 2 Member | Corporate Debt Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	44,944	[1]	33,822	[2]
Fair Value Inputs Level 2 Member | Canadian and Canadian provincial governments
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	4,970	[1]	3,917	[2]
Fair Value Inputs Level 2 Member | Residential mortgage-backed securities
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	3,851	[1]	1,078	[2]
Fair Value Inputs Level 2 Member | Asset-backed Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	2,204	[1]	3,064	[2]
Fair Value Inputs Level 2 Member | Commercial Mortgage Backed Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	1,318	[1]	1,714	[2]
Fair Value Inputs Level 2 Member | US Treasury and Government [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	89	[1]	87	[2]
Fair Value Inputs Level 2 Member | US States and Political Subdivisions Debt Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	821	[1]	1,095	[2]
Fair Value Inputs Level 2 Member | Debt Security, Government, Non-US [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	5,335	[1]	3,714	[2]
Fair Value Inputs Level 2 Member | Japanese Government
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	5,270	[1]	3,131	[2]
Fair Value Inputs Level 3 Member
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	7,739	[1]	6,419	[2]
Equity Method Investments, Fair Value Disclosure	82	[1]	70	[2]
Funds withheld at interest embedded derivatives	(231)	[1]	(377)	[2]
Funds Held Under Reinsurance Agreements, Asset Fair Value Disclosure	60	[1]	54	[2]
Cash and cash equivalents	0	[1]	0	[2]
Short-term investments	11	[1]	2	[2]
Derivative Assets (Liabilities), at Fair Value, Net	0	[1]	0	[2]
Investments, Fair Value Disclosure	0	[1]	0	[2]
Assets, Fair Value Disclosure	7,661	[1]	6,168	[2]
Liabilities Fair Value Disclosure
Fair Value Measured On Recurring Basis Guaranteed Interest Contracts Embedded Derivatives	385		415
Other liabilities	0		0
Financial Liabilities Fair Value Disclosure	334		209
Derivative Liability	(51)		(206)
Fair Value Inputs Level 3 Member | Fair Value Option Contractholder Directed Unit Linked Investments [Member]
Assets Fair Value Disclosure
Investments, Fair Value Disclosure	0	[1]	0	[2]
Fair Value Inputs Level 3 Member | Corporate Debt Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	6,143	[1]	4,933	[2]
Fair Value Inputs Level 3 Member | Canadian and Canadian provincial governments
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	0	[2]
Fair Value Inputs Level 3 Member | Residential mortgage-backed securities
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	1,522	[1]	1	[2]
Fair Value Inputs Level 3 Member | Asset-backed Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	34	[1]	1,365	[2]
Fair Value Inputs Level 3 Member | Commercial Mortgage Backed Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	59	[2]
Fair Value Inputs Level 3 Member | US Treasury and Government [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	6	[1]	7	[2]
Fair Value Inputs Level 3 Member | US States and Political Subdivisions Debt Securities [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	0	[1]	19	[2]
Fair Value Inputs Level 3 Member | Debt Security, Government, Non-US [Member]
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	34	[1]	35	[2]
Fair Value Inputs Level 3 Member | Japanese Government
Assets Fair Value Disclosure
Fixed maturity securities, available-for-sale	$ 0	[1]	$ 0	[2]
[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of September 30, 2024, the fair value of such investments was $921 million.

Fair Value of Assets and Liab_4

Fair Value of Assets and Liabilities (Quantitative Information for Level 3 Inputs) (Details) $ in Millions	Sep. 30, 2024 USD ($)		Dec. 31, 2023 USD ($)
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, Fair Value Disclosure	$ 82,226	[1]	$ 61,924	[2]
Corporate Debt Securities [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, Fair Value Disclosure	$ 115		$ 91
Corporate Debt Securities [Member] | Weighted Average [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	0.02		0.01
Corporate Debt Securities [Member] | Maximum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	0.02		0.02
Corporate Debt Securities [Member] | Minimum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	0.02		0
Asset-backed Securities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, Fair Value Disclosure	$ 285		$ 268
Asset-backed Securities [Member] | Weighted Average [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	0.02		0.02
Asset-backed Securities [Member] | Maximum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	0.09		0.18
Asset-backed Securities [Member] | Minimum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	0		0
US Government Agencies Debt Securities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, Fair Value Disclosure	$ 6		$ 7
US Government Agencies Debt Securities [Member] | Weighted Average [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	0.01		0.01
US Government Agencies Debt Securities [Member] | Maximum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	0.01		0.01
US Government Agencies Debt Securities [Member] | Minimum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	0		0
Equity securities | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, Fair Value Disclosure	$ 32		$ 31
Equity securities | Maximum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	0.04		4
Funds Withheld At Interest Embedded Derivatives [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, Fair Value Disclosure	$ 14		$ 50
Embedded Derivatives In Indexed Annuity [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure	$ 385		$ 415
Embedded Derivatives In Indexed Annuity [Member] | Weighted Average [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0.02		0.02
Embedded Derivatives In Indexed Annuity [Member] | Maximum [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0.04		0.04
Embedded Derivatives In Indexed Annuity [Member] | Minimum [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0.01		0.01
Short-term Investments [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, Fair Value Disclosure	$ 1		$ 0
Short-term Investments [Member] | Maximum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	6.2		0
Measurement Input Crediting Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Weighted Average [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0.02		0.02
Measurement Input Crediting Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Maximum [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0.04		0.04
Measurement Input Crediting Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Minimum [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0.01		0.01
Measurement Input, Counterparty Credit Risk [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Weighted Average [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0		0
Measurement Input, Counterparty Credit Risk [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Maximum [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0.05		0.05
Measurement Input, Counterparty Credit Risk [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Minimum [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0		0
Measurement Input, Withdrawal Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Weighted Average [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0.04		0.04
Measurement Input, Withdrawal Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Maximum [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0.10		0.05
Measurement Input, Withdrawal Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Minimum [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0		0
Measurement Input, Withdrawal Rate [Member] | Embedded Derivatives In Indexed Annuity [Member] | Weighted Average [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0.04		0.04
Measurement Input, Withdrawal Rate [Member] | Embedded Derivatives In Indexed Annuity [Member] | Maximum [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0.10		0.05
Measurement Input, Withdrawal Rate [Member] | Embedded Derivatives In Indexed Annuity [Member] | Minimum [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0		0
Measurement Input, Lapse Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Weighted Average [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0.16		0.18
Measurement Input, Lapse Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Maximum [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0.35		0.35
Measurement Input, Lapse Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Minimum [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0		0
Measurement Input, Lapse Rate [Member] | Embedded Derivatives In Indexed Annuity [Member] | Weighted Average [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0.15		0.17
Measurement Input, Lapse Rate [Member] | Embedded Derivatives In Indexed Annuity [Member] | Maximum [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0.35		0.35
Measurement Input, Lapse Rate [Member] | Embedded Derivatives In Indexed Annuity [Member] | Minimum [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0		0
Measurement Input, Mortality Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Weighted Average [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0.03		0.03
Measurement Input, Mortality Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Maximum [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	1		1
Measurement Input, Mortality Rate [Member] | Funds Withheld At Interest Embedded Derivatives [Member] | Minimum [Member] | Valuation, Income Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Asset, Measurement Input	0		0
Measurement Input, Mortality Rate [Member] | Embedded Derivatives In Indexed Annuity [Member] | Weighted Average [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0.03		0.03
Measurement Input, Mortality Rate [Member] | Embedded Derivatives In Indexed Annuity [Member] | Maximum [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	1		1
Measurement Input, Mortality Rate [Member] | Embedded Derivatives In Indexed Annuity [Member] | Minimum [Member] | Valuation Technique, Discounted Cash Flow [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Embedded Derivative Liability, Measurement Input	0		0
Measurement Input, EBITDA Multiple [Member] | Corporate Debt Securities [Member] | Weighted Average [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	8.7		7.1
Measurement Input, EBITDA Multiple [Member] | Corporate Debt Securities [Member] | Maximum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	11		8.5
Measurement Input, EBITDA Multiple [Member] | Corporate Debt Securities [Member] | Minimum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Instrument, Measurement Input	5.7		6
Measurement Input, EBITDA Multiple [Member] | Equity securities | Weighted Average [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Equity Securities, FV-NI, Measurement Input	10.9		10.1
Measurement Input, EBITDA Multiple [Member] | Equity securities | Maximum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Equity Securities, FV-NI, Measurement Input	12.8		12.3
Measurement Input, EBITDA Multiple [Member] | Equity securities | Minimum [Member] | Valuation, Market Approach [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Equity Securities, FV-NI, Measurement Input	8.4		8.4
[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of September 30, 2024, the fair value of such investments was $921 million.

Fair Value of Assets and Liab_5

Fair Value of Assets and Liabilities (Changes in Level 3 Assets and Liabilities) (Details) - USD ($) $ in Millions		3 Months Ended				9 Months Ended
		Sep. 30, 2024		Sep. 30, 2023		Sep. 30, 2024		Sep. 30, 2023		Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Corporate Debt Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		$ 5,501		$ 4,654		$ 4,933		$ 4,299
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		149		(84)		132		(93)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		(809)	[1]	(170)	[1]	(2,001)	[2]	(680)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		(96)	[1]	(19)	[1]	(278)	[2]	(51)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		(196)	[1]	(164)	[1]	(546)	[2]	(282)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		0		53		1		61
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		20		0		54		6
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		6,143		4,615		6,143		4,615
Corporate Debt Securities [Member] | Investment Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		4		1		10		3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		3		1		6		3
Corporate Debt Securities [Member] | Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Corporate Debt Securities [Member] | Investment Related Gains Losses [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		(8)		4		(56)		4
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		(11)		0		(56)		(2)
Corporate Debt Securities [Member] | Other Comprehensive Income (Loss) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		150		(81)		135		(94)
US Government Agencies Debt Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		27		29		26		35
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		0		(2)		0		(2)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		0	[1]	0	[1]	0	[2]	0	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		0	[1]	0	[1]	0	[2]	0	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		0	[1]	0	[1]	(1)	[2]	(1)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		0		0		2		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		21		0		21		5
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		6		27		6		27
US Government Agencies Debt Securities [Member] | Investment Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
US Government Agencies Debt Securities [Member] | Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
US Government Agencies Debt Securities [Member] | Investment Related Gains Losses [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
US Government Agencies Debt Securities [Member] | Other Comprehensive Income (Loss) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		(2)		0		(2)
Debt Security, Government, Non-US [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		31		35		35		35
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		3		(2)		(1)		(2)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		0	[1]	0	[1]	0	[2]	0	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		0	[1]	0	[1]	0	[2]	0	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		0	[1]	0	[1]	0	[2]	0	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		34		33		34		33
Debt Security, Government, Non-US [Member] | Investment Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Debt Security, Government, Non-US [Member] | Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Debt Security, Government, Non-US [Member] | Investment Related Gains Losses [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Debt Security, Government, Non-US [Member] | Other Comprehensive Income (Loss) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		3		(2)		(1)		(2)
Funds Withheld At Interest Embedded Derivatives [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		(68)	[3]	9	[4]	(171)	[3]	(8)	[3]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		0	[3]	0	[4]	0	[3]	0	[3]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		0	[1],[3]	0	[1],[4]	0	[2],[3]	0	[2],[3]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		0	[1],[3]	0	[1],[4]	0	[2],[3]	0	[2],[3]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		0	[1],[3]	0	[1],[4]	0	[2],[3]	0	[2],[3]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		0	[3]	0	[4]	0	[3]	0	[3]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		0	[3]	0	[4]	0	[3]	0	[3]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	[3]	(180)		10	[4]	(180)		10	[4]
Funds Withheld At Interest Embedded Derivatives [Member] | Investment Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0	[3]	0	[4]	0	[3]	0	[3]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0	[3]	0	[4]	0	[2]	0	[3]
Funds Withheld At Interest Embedded Derivatives [Member] | Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings			[3]	0	[4]	0	[3]	0	[3]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0	[3]	0	[4]	0	[2]	0	[3]
Funds Withheld At Interest Embedded Derivatives [Member] | Investment Related Gains Losses [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		(112)	[3]	1	[4]	(9)	[3]	18	[3]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		(112)	[3]	1	[4]	(9)	[2]	18	[3]
Funds Withheld At Interest Embedded Derivatives [Member] | Other Comprehensive Income (Loss) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0	[3]	0	[4]	0	[2]	0	[3]
Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		15		6		2		13
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		(3)	[1]	(9)	[1]	(12)	[2]	(10)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		0	[1]	0	[1]	(1)	[2]	0	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		0	[1]	(1)	[1]	0	[2]	(1)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		0		0		0		6
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		0		6		1		19
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		11		8		11		8
Short-term Investments [Member] | Investment Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Short-term Investments [Member] | Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Short-term Investments [Member] | Investment Related Gains Losses [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		(1)		0		(1)		(1)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		(1)		0		(1)		(1)
Short-term Investments [Member] | Other Comprehensive Income (Loss) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Interest Sensitive Contract Liabilities Embedded Derivatives [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales		0	[1]	0	[1]	0	[2]	0	[2]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value		385		441		385		441		$ 386	$ 415	$ 472	$ 530
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases		(7)	[1]	3	[1]	(18)	[2]	13	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements		23	[1]	25	[1]	75	[2]	62	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3		0		0		0		0
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] | Investment Income [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] | Interest Income [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings		15		(3)		27		(14)
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss)		39		22		103		47
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] | Investment Related Gains Losses [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] | Other Comprehensive Income (Loss) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		74		68		70		66
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		(6)	[1]	0	[1]	(17)	[2]	(8)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		(1)	[1]	0	[1]	(1)	[2]	(4)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		0	[1]	0	[1]	0	[2]	0	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		82		68		82		68
Equity securities | Investment Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Equity securities | Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Equity securities | Investment Related Gains Losses [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		3		0		(4)		(2)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		2		0		(5)		(2)
Equity securities | Other Comprehensive Income (Loss) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Structured Finance [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		1,497		1,397		1,425		1,353
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		26		(16)		30		28
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		(99)	[1]	(29)	[1]	(287)	[2]	(144)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		0	[1]	(10)	[1]	(23)	[2]	(14)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		(101)	[1]	(76)	[1]	(260)	[2]	(198)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		36		0		117		64
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		1		0		22		55
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		1,556		1,325		1,556		1,325
Structured Finance [Member] | Investment Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		1		3		4
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		1		2		4
Structured Finance [Member] | Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Structured Finance [Member] | Investment Related Gains Losses [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		(1)		(1)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		(3)		(2)
Structured Finance [Member] | Other Comprehensive Income (Loss) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		26		(16)		32		27
Funds withheld at interest
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		55		53		54		54
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		3		(2)		2		1
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		(1)	[1]	0	[1]	(2)	[2]	(1)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		0	[1]	0	[1]	0	[2]	0	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		(2)	[1]	0	[1]	(3)	[2]	(2)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		60		51		60		51
Funds withheld at interest | Investment Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		3		0		5		(3)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		3		0		5		(3)
Funds withheld at interest | Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Funds withheld at interest | Investment Related Gains Losses [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Funds withheld at interest | Other Comprehensive Income (Loss) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		3		(2)		2		1
Cash Equivalents
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		0	[1]	0	[1]	0	[2]	(1)	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		0	[1]	0	[1]	0	[2]	0	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		0	[1]	0	[1]	0	[2]	0	[2]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3		0		0		0		0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3		0		0		0		1
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		0		0		0		0
Cash Equivalents | Investment Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Cash Equivalents | Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Cash Equivalents | Investment Related Gains Losses [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		0		0		0		0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		0		0		0		0
Cash Equivalents | Other Comprehensive Income (Loss) [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)		$ 0		$ 0		$ 0		$ 0
[1] The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period. For the nine months ended September 30, 2023: Fixed maturity securities available-for-sale Funds withheld at interest –embedded derivatives, net (1) Funds Interest-sensitive contract Corporate Foreign govt Structured securities U.S. and local govt Equity securities Cash equivalents Short-term investments Fair value, beginning of period $ 4,299 $ 35 $ 1,353 $ 35 $ 66 $ — $ 13 $ (8) $ 54 $ (530) Total gains/losses (realized/unrealized) Included in earnings, net: Net investment income 3 — 4 — — — — — (3) — Investment related gains (losses), net 4 — (1) — (2) — (1) 18 — — Interest credited — — — — — — — — — 14 Included in other comprehensive income (loss) (93) (2) 28 (2) — — — — 1 — Purchases (2) 680 — 144 — 8 1 10 — 1 13 Sales (2) (51) — (14) — (4) — — — — — Settlements (2) (282) — (198) (1) — — (1) — (2) 62 Transfers into Level 3 61 — 64 — — — 6 — — — Transfers out of Level 3 (6) — (55) (5) — (1) (19) — — — Fair value, end of period $ 4,615 $ 33 $ 1,325 $ 27 $ 68 $ — $ 8 $ 10 $ 51 $ (441) Total gains/losses (realized/unrealized) recorded for the period relating to those Level 3 assets and liabilities that were still held at the end of the period Included in earnings, net: Net investment income $ 3 $ — $ 4 $ — $ — $ — $ — $ — $ (3) $ — Investment related gains (losses), net (2) — (2) — (2) — (1) 18 — — Interest credited — — — — — — — — — (47) Included in other comprehensive income (loss) (94) (2) 27 (2) — — — — 1 — (1) Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward. (2) The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period. The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period. Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward. Funds withheld at interest – embedded derivative assets and liabilities are presented net for purposes of the rollforward.

Fair Value of Assets and Liab_6

Fair Value of Assets and Liabilities (Financial Instruments where Carrying Amounts and Fair Values May Differ) (Details) - USD ($) $ in Millions		Sep. 30, 2024	Dec. 31, 2023
Reported Value Measurement [Member]
Assets
Mortgage loans on real estate (net of valuation allowances)	[1]	$ 8,388	$ 7,377
Policy loans	[1]	1,285	1,206
Funds withheld at interest	[1]	5,716	6,005
Cash and cash equivalents	[1]	1,665	1,635
Short-term investments	[1]	36	35
Other invested assets	[1]	1,108	1,019
Accrued investment income	[1]	995	759
Real Estate Investments, Unconsolidated Real Estate and Other Joint Ventures	[1]	55	71
Liabilities
Interest-sensitive contract liabilities	[1],[2]	22,401	21,797
Funds Held under Reinsurance Agreements, Liability		4,860	4,689	[1]
Long-term debt	[1]	5,067	4,427
Estimate of Fair Value Measurement [Member]
Assets
Mortgage loans on real estate (net of valuation allowances)		8,187	6,975
Policy loans		1,285	1,206
Funds withheld at interest		5,424	5,547
Cash and cash equivalents		1,665	1,635
Short-term investments		36	35
Other invested assets		916	841
Accrued investment income		995	759
Real Estate Investments, Unconsolidated Real Estate and Other Joint Ventures		63	73
Liabilities
Interest-sensitive contract liabilities	[2]	22,559	21,665
Funds Held under Reinsurance Agreements, Liability		4,644	4,400
Long-term Debt, Fair Value		5,025	4,243
Estimate of Fair Value Measurement [Member] | Fair Value Inputs Level 1 Member
Assets
Mortgage loans on real estate (net of valuation allowances)		0	0
Policy loans		0	0
Funds withheld at interest		0	0
Cash and cash equivalents		1,665	1,635
Short-term investments		36	35
Other invested assets		3	4
Accrued investment income		0	0
Real Estate Investments, Unconsolidated Real Estate and Other Joint Ventures		0	0
Liabilities
Interest-sensitive contract liabilities	[2]	0	0
Funds Held under Reinsurance Agreements, Liability		0	0
Long-term Debt, Fair Value		0	0
Estimate of Fair Value Measurement [Member] | Fair Value Inputs Level 2 Member
Assets
Mortgage loans on real estate (net of valuation allowances)		0	0
Policy loans		1,285	1,206
Funds withheld at interest		0	0
Cash and cash equivalents		0	0
Short-term investments		0	0
Other invested assets		72	63
Accrued investment income		995	759
Real Estate Investments, Unconsolidated Real Estate and Other Joint Ventures		0	0
Liabilities
Interest-sensitive contract liabilities	[2]	0	0
Funds Held under Reinsurance Agreements, Liability		0	0
Long-term Debt, Fair Value		0	0
Estimate of Fair Value Measurement [Member] | Fair Value Inputs Level 3 Member
Assets
Mortgage loans on real estate (net of valuation allowances)		8,187	6,975
Policy loans		0	0
Funds withheld at interest		5,424	5,547
Cash and cash equivalents		0	0
Short-term investments		0	0
Other invested assets		841	774
Accrued investment income		0	0
Real Estate Investments, Unconsolidated Real Estate and Other Joint Ventures		63	73
Liabilities
Interest-sensitive contract liabilities	[2]	22,559	21,665
Funds Held under Reinsurance Agreements, Liability		4,644	4,400
Long-term Debt, Fair Value		5,025	4,243
Mortgage loans on real estate (net of valuation allowances)		8,388	7,377
Policy loans		1,285	1,206
Funds withheld at interest		5,545	5,683
Cash and cash equivalents		5,195	2,970
Short-term investments		381	222
Other invested assets		1,361	1,171
Accrued investment income		995	759
Interest-sensitive contract liabilities		34,357	30,273
Funds Held under Reinsurance Agreements, Liability		4,809	4,483
Long-term debt		5,067	4,427
Reinsurance Recoverables, Gross		$ 2,100	$ 2,200
[1] Carrying values presented herein may differ from those in the Company’s condensed consolidated balance sheets because certain items within the respective financial statement captions may be measured at fair value on a recurring basis. Carrying values and estimated fair values presented herein include a reinsurance recoverable of $2.1 billion and $2.2 billion as of September 30, 2024 and December 31, 2023, respectively.

Income Tax (Provision for Incom

Income Tax (Provision for Income Tax Expense) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit)	$ 56	$ 91	$ 181	$ 247
Effective Income Tax Rate Reconciliation, Percent	26.70%	24.20%	24.20%	24.90%

Employee Benefit Plans (Defined

Employee Benefit Plans (Defined Benefit Plans Disclosure) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3	$ 3	$ 10	$ 10
Interest cost	3	3	8	8
Expected return on plan assets	(3)	(3)	(9)	(8)
Amortization of prior service cost	0	0	0	0
Amortization of prior actuarial loss	1	1	2	2
Defined Benefit Plan, Benefit Obligation, Payment for Settlement	(1)	0	(1)	0
Total	5	4	12	12
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	1	1
Interest cost	1	1	2	2
Expected return on plan assets	0	0	0	0
Amortization of prior service cost	0	0	(1)	(1)
Amortization of prior actuarial loss	0	0	0	0
Defined Benefit Plan, Benefit Obligation, Payment for Settlement	0	0	0	0
Total	$ 1	$ 1	$ 2	$ 2

Commitments, Contingencies an_3

Commitments, Contingencies and Guarantees (Commitments to Fund Investments) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Limited Partner [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	$ 1,000	$ 1,058
Commercial Loan [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	140	137
Bank Loans [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	1,290	810
Equity Release Mortgages [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	$ 57	$ 53

Commitments, Contingencies an_4

Commitments, Contingencies and Guarantees (Maximum Potential Obligation) (Details) $ in Millions	Sep. 30, 2024 USD ($)
Commitment Period Two Thousand Thirty Four [Member]
Other Commitments [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 1,243
Commitment Period Two Thousand Thirty Five [Member]
Other Commitments [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	1,909
Commitment Period Two Thousand Thirty Six [Member]
Other Commitments [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	3,599
Commitment Period Two Thousand Thirty Seven
Other Commitments [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	5,100
Commitment Period Two Thousand Thirty Eight
Other Commitments [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	2,550
Commitment Period Two Thousand Thirty Nine
Other Commitments [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	8,751
Commitment Period Two Thousand Forty Six
Other Commitments [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	3,000
Commitment Period Two Thousand Forty One
Other Commitments [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	720
Commitment Period Two Thousand Forty Nine
Other Commitments [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 4,750

Commitments, Contingencies an_5

Commitments, Contingencies and Guarantees (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances	$ 1,400	$ 1,100
Other Notes Payable	$ 2,700	$ 1,300

Segment Information (Total Reve

Segment Information (Total Revenues of Reportable Segments) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 5,651	$ 5,153	$ 16,866	$ 13,560
Other Segments | Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	3,054	3,064	9,985	7,601
Other Segments | CANADA
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	501	392	1,404	1,177
Other Segments | EMEA [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	805	631	2,297	1,841
Other Segments | Asia Pacific [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	1,122	931	2,936	2,679
Corporate and Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	169	135	244	262
Life Insurance Product Line [Member] | Other Segments | Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	2,137	1,949	6,095	5,693
Life Insurance Product Line [Member] | Other Segments | CANADA
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	385	366	1,160	1,098
Life Insurance Product Line [Member] | Other Segments | EMEA [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	550	471	1,599	1,382
Life Insurance Product Line [Member] | Other Segments | Asia Pacific [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	819	801	2,388	2,282
Nontraditional Long-Duration Contracts [Member] | Other Segments | Americas [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	917	1,115	3,890	1,908
Nontraditional Long-Duration Contracts [Member] | Other Segments | CANADA
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	116	26	244	79
Nontraditional Long-Duration Contracts [Member] | Other Segments | EMEA [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	255	160	698	459
Nontraditional Long-Duration Contracts [Member] | Other Segments | Asia Pacific [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 303	$ 130	$ 548	$ 397

Segment Information (Income Los

Segment Information (Income Loss Before Provision for Income Tax of Reportable Segments) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 214	$ 380	$ 755	$ 996
Corporate and Other [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(18)	(11)	(283)	(157)
Other Segments | Americas [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	11	213	401	578
Other Segments | CANADA
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	50	36	137	116
Other Segments | EMEA [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	67	24	232	166
Other Segments | Asia Pacific [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	104	118	268	293
Life Insurance Product Line [Member] | Other Segments | Americas [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	57	105	347	288
Life Insurance Product Line [Member] | Other Segments | CANADA
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	29	6	103	70
Life Insurance Product Line [Member] | Other Segments | EMEA [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(17)	(60)	12	(29)
Life Insurance Product Line [Member] | Other Segments | Asia Pacific [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	11	134	220	302
Nontraditional Long-Duration Contracts [Member] | Other Segments | Americas [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(46)	108	54	290
Nontraditional Long-Duration Contracts [Member] | Other Segments | CANADA
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	21	30	34	46
Nontraditional Long-Duration Contracts [Member] | Other Segments | EMEA [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	84	84	220	195
Nontraditional Long-Duration Contracts [Member] | Other Segments | Asia Pacific [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 93	$ (16)	$ 48	$ (9)

Segment Information (Total Asse

Segment Information (Total Assets of Reportable Segments) (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 120,258	$ 97,623
Corporate and Other [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	8,866	4,993
Other Segments | Americas [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	56,079	52,705
Other Segments | CANADA
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	10,255	5,330
Other Segments | EMEA [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	12,977	9,990
Other Segments | Asia Pacific [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	32,081	24,605
Life Insurance Product Line [Member] | Other Segments | Americas [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	25,871	24,320
Life Insurance Product Line [Member] | Other Segments | CANADA
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	4,707	5,111
Life Insurance Product Line [Member] | Other Segments | EMEA [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	4,686	4,334
Life Insurance Product Line [Member] | Other Segments | Asia Pacific [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	9,079	9,925
Nontraditional Long-Duration Contracts [Member] | Other Segments | Americas [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	30,208	28,385
Nontraditional Long-Duration Contracts [Member] | Other Segments | CANADA
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	5,548	219
Nontraditional Long-Duration Contracts [Member] | Other Segments | EMEA [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	8,291	5,656
Nontraditional Long-Duration Contracts [Member] | Other Segments | Asia Pacific [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 23,002	$ 14,680

Financing Activities (Details)

Financing Activities (Details) - Senior Note 2034 - Senior Notes $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.75%
Debt Instrument, Face Amount	$ 650
Debt Related Commitment Fees and Debt Issuance Costs	$ 6