Deferred Policy Acquisition Costs, Value of Business Acquired and Other Intangibles (Information Regarding DAC and VOBA) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, end of period, Total DAC and VOBA	$ 4,276	$ 4,374
Variable Annuities
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, beginning of period, DAC	2,040	2,217	$ 2,414
Capitalization	46	39	36
Amortization	(205)	(216)	(233)
Balance, end of period, DAC	1,881	2,040	2,217
Balance, beginning of period, VOBA	279	309	341
Amortization	(28)	(30)	(32)
Balance, end of period, VOBA	251	279	309
Balance, end of period, Total DAC and VOBA	2,132	2,319	2,526
Fixed Rate Annuities
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, beginning of period, DAC	115	110	107
Capitalization	7	8	14
Amortization	(2)	(3)	(11)
Balance, end of period, DAC	120	115	110
Balance, beginning of period, VOBA	55	59	65
Amortization	(4)	(4)	(6)
Balance, end of period, VOBA	51	55	59
Balance, end of period, Total DAC and VOBA	171	170	169
Index-linked Annuities
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, beginning of period, DAC	1,462	1,332	1,213
Capitalization	394	373	344
Amortization	(275)	(243)	(225)
Balance, end of period, DAC	1,581	1,462	1,332
Balance, beginning of period, VOBA	0	0	0
Amortization	0	0	0
Balance, end of period, VOBA	0	0	0
Balance, end of period, Total DAC and VOBA	1,581	1,462	1,332
Term and Whole Life Insurance
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, beginning of period, DAC	271	306	347
Capitalization	(2)	4	2
Amortization	(38)	(39)	(43)
Balance, end of period, DAC	231	271	306
Balance, beginning of period, VOBA	3	4	5
Amortization	0	(1)	(1)
Balance, end of period, VOBA	3	3	4
Balance, end of period, Total DAC and VOBA	234	274	310
Universal Life Insurance
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, beginning of period, DAC	122	119	115
Capitalization	21	13	13
Amortization	(8)	(10)	(9)
Balance, end of period, DAC	135	122	119
Balance, beginning of period, VOBA	27	31	35
Amortization	(4)	(4)	(4)
Balance, end of period, VOBA	23	27	31
Balance, end of period, Total DAC and VOBA	$ 158	$ 149	$ 150