Investments (Fixed Maturity Securities Available-For-Sale by Sector) (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025	Mar. 31, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 342,191	$ 337,201
Allowance for Credit Loss for Debt Securities	(273)	(249)	$ (137)	$ (160)
Gross Unrealized Gains	5,567	7,137
Gross Unrealized Losses	31,375	28,158
Estimated Fair Value of Fixed Maturity Securities AFS	316,110	315,931
U.S. corporate
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	95,266	92,855
Allowance for Credit Loss for Debt Securities	(134)	(138)	(40)	(59)
Gross Unrealized Gains	1,440	1,899
Gross Unrealized Losses	7,602	6,657
Estimated Fair Value of Fixed Maturity Securities AFS	88,970	87,959
Foreign corporate
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	63,323	62,606
Allowance for Credit Loss for Debt Securities	(52)	(7)	(6)	(18)
Gross Unrealized Gains	1,955	2,443
Gross Unrealized Losses	5,168	4,453
Estimated Fair Value of Fixed Maturity Securities AFS	60,058	60,589
RMBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	46,999	46,567
Allowance for Credit Loss for Debt Securities	(1)	(1)	(2)	(1)
Gross Unrealized Gains	595	822
Gross Unrealized Losses	2,040	1,970
Estimated Fair Value of Fixed Maturity Securities AFS	45,553	45,418
Foreign government
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	47,427	47,037
Allowance for Credit Loss for Debt Securities	(57)	(57)	(57)	(57)
Gross Unrealized Gains	907	1,068
Gross Unrealized Losses	8,230	7,300
Estimated Fair Value of Fixed Maturity Securities AFS	40,047	40,748
U.S. government and agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	41,753	42,877
Allowance for Credit Loss for Debt Securities	0	0
Gross Unrealized Gains	224	303
Gross Unrealized Losses	6,028	5,658
Estimated Fair Value of Fixed Maturity Securities AFS	35,949	37,522
ABS & CLO
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	25,346	23,028
Allowance for Credit Loss for Debt Securities	(5)	(6)	(7)	(9)
Gross Unrealized Gains	177	246
Gross Unrealized Losses	482	371
Estimated Fair Value of Fixed Maturity Securities AFS	25,036	22,897
Municipals
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	12,069	12,195
Allowance for Credit Loss for Debt Securities	0	0
Gross Unrealized Gains	174	225
Gross Unrealized Losses	1,411	1,356
Estimated Fair Value of Fixed Maturity Securities AFS	10,832	11,064
CMBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	10,008	10,036
Allowance for Credit Loss for Debt Securities	(24)	(40)	$ (25)	$ (16)
Gross Unrealized Gains	95	131
Gross Unrealized Losses	414	393
Estimated Fair Value of Fixed Maturity Securities AFS	$ 9,665	$ 9,734

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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