Deferred Policy Acquisition Costs, Value of Business Acquired and Other Intangibles (Unearned Revenue) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Universal Life Insurance
Deferred Revenue Arrangement [Line Items]
Balance, beginning of period	$ 167	$ 143
Capitalization	25	27
Amortization	(9)	(8)
Balance, end of period	183	162
ULSG
Deferred Revenue Arrangement [Line Items]
Balance, beginning of period	612	488
Capitalization	126	131
Amortization	(46)	(36)
Balance, end of period	692	583
Variable Annuities
Deferred Revenue Arrangement [Line Items]
Balance, beginning of period	66	73
Capitalization	0	0
Amortization	(5)	(6)
Balance, end of period	$ 61	$ 67