Deferred Policy Acquisition Costs, Value of Business Acquired and Other Intangibles (Unearned Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Universal Life Insurance
Deferred Revenue Arrangement [Line Items]
Balance, beginning of year	$ 167	$ 143	$ 118
Capitalization	34	35	35
Amortization	(11)	(11)	(10)
Balance, end of year	190	167	143
ULSG
Deferred Revenue Arrangement [Line Items]
Balance, beginning of year	612	488	344
Capitalization	166	174	181
Amortization	(63)	(50)	(37)
Balance, end of year	715	612	488
Variable Annuities
Deferred Revenue Arrangement [Line Items]
Balance, beginning of year	66	73	79
Capitalization	0	0	2
Amortization	(7)	(7)	(8)
Balance, end of year	$ 59	$ 66	$ 73