Deferred Policy Acquisition Costs, Value of Business Acquired and Other Intangibles (Information Regarding DSI) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Variable Annuities
Deferred Sale Inducement Cost [Line Items]
Balance, beginning of year	$ 209	$ 233	$ 259
Capitalization	1	1	1
Amortization	(21)	(25)	(27)
Balance, end of year	189	209	233
Fixed Rate Annuities
Deferred Sale Inducement Cost [Line Items]
Balance, beginning of year	8	9	10
Capitalization	0	0	0
Amortization	(2)	(1)	(1)
Balance, end of year	$ 6	$ 8	$ 9