Deferred Policy Acquisition Costs, Value of Business Acquired and Other Intangibles (Information Regarding DAC and VOBA) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, end of period, Total DAC and VOBA	$ 4,397
Variable Annuities
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, beginning of period, DAC	2,217	$ 2,414
Capitalization	27	29
Amortization	(163)	(178)
Balance, end of period, DAC	2,081	2,265
Balance, beginning of period, VOBA	309	341
Amortization	(23)	(24)
Balance, end of period, VOBA	286	317
Balance, end of period, Total DAC and VOBA	2,367	2,582
Fixed Rate Annuities
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, beginning of period, DAC	110	107
Capitalization	6	9
Amortization	(3)	(8)
Balance, end of period, DAC	113	108
Balance, beginning of period, VOBA	59	65
Amortization	(3)	(4)
Balance, end of period, VOBA	56	61
Balance, end of period, Total DAC and VOBA	169	169
Index-linked Annuities
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, beginning of period, DAC	1,332	1,213
Capitalization	279	255
Amortization	(182)	(167)
Balance, end of period, DAC	1,429	1,301
Balance, beginning of period, VOBA	0	0
Amortization	0	0
Balance, end of period, VOBA	0	0
Balance, end of period, Total DAC and VOBA	1,429	1,301
Term and Whole Life Insurance
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, beginning of period, DAC	306	347
Capitalization	2	1
Amortization	(30)	(33)
Balance, end of period, DAC	278	315
Balance, beginning of period, VOBA	4	5
Amortization	(1)	(1)
Balance, end of period, VOBA	3	4
Balance, end of period, Total DAC and VOBA	281	319
Universal Life Insurance
Deferred Policy Acquisition Cost and Present Value of Future Profit [Line Items]
Balance, beginning of period, DAC	119	115
Capitalization	9	9
Amortization	(6)	(7)
Balance, end of period, DAC	122	117
Balance, beginning of period, VOBA	31	35
Amortization	(2)	(3)
Balance, end of period, VOBA	29	32
Balance, end of period, Total DAC and VOBA	$ 151	$ 149