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	$ 169,626	$ 167,384
Allowance for Credit Loss for Debt Securities	(195)	(194)	$ (86)	$ (112)
Gross Unrealized Gains	1,988	2,939
Gross Unrealized Losses	12,077	10,797
Estimated Fair Value of Fixed Maturity Securities AFS	159,342	159,332
U.S. corporate
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	53,975	52,552
Allowance for Credit Loss for Debt Securities	(121)	(125)	(26)	(45)
Gross Unrealized Gains	739	1,050
Gross Unrealized Losses	3,377	2,875
Estimated Fair Value of Fixed Maturity Securities AFS	51,216	50,602
RMBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	28,334	28,129
Allowance for Credit Loss for Debt Securities	(1)	(1)	(2)	(1)
Gross Unrealized Gains	342	476
Gross Unrealized Losses	1,383	1,365
Estimated Fair Value of Fixed Maturity Securities AFS	27,292	27,239
U.S. government and agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	28,266	29,811
Allowance for Credit Loss for Debt Securities	0	0
Gross Unrealized Gains	124	188
Gross Unrealized Losses	3,523	3,298
Estimated Fair Value of Fixed Maturity Securities AFS	24,867	26,701
Foreign corporate
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	28,334	27,934
Allowance for Credit Loss for Debt Securities	(16)	(7)	(5)	(15)
Gross Unrealized Gains	460	742
Gross Unrealized Losses	2,583	2,198
Estimated Fair Value of Fixed Maturity Securities AFS	26,195	26,471
ABS & CLO
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	16,238	14,610
Allowance for Credit Loss for Debt Securities	(5)	(5)	(5)	(7)
Gross Unrealized Gains	91	137
Gross Unrealized Losses	258	191
Estimated Fair Value of Fixed Maturity Securities AFS	16,066	14,551
Municipals
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	5,830	5,947
Allowance for Credit Loss for Debt Securities	0	0
Gross Unrealized Gains	98	138
Gross Unrealized Losses	526	496
Estimated Fair Value of Fixed Maturity Securities AFS	5,402	5,589
CMBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	5,144	5,286
Allowance for Credit Loss for Debt Securities	(16)	(20)	(12)	(8)
Gross Unrealized Gains	36	57
Gross Unrealized Losses	203	210
Estimated Fair Value of Fixed Maturity Securities AFS	4,961	5,113
Foreign government
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,505	3,115
Allowance for Credit Loss for Debt Securities	(36)	(36)	$ (36)	$ (36)
Gross Unrealized Gains	98	151
Gross Unrealized Losses	224	164
Estimated Fair Value of Fixed Maturity Securities AFS	$ 3,343	$ 3,066

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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