Deferred Policy Acquisition Costs, Value of Business Acquired and Other Intangibles (Unearned Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Universal Life Insurance
Deferred Revenue Arrangement [Line Items]
Balance, beginning of year	$ 190	$ 167	$ 143
Capitalization	38	34	35
Amortization	(13)	(11)	(11)
Balance, end of year	215	190	167
ULSG
Deferred Revenue Arrangement [Line Items]
Balance, beginning of year	715	612	488
Capitalization	154	166	174
Amortization	(76)	(63)	(50)
Balance, end of year	793	715	612
Variable Annuities
Deferred Revenue Arrangement [Line Items]
Balance, beginning of year	59	66	73
Capitalization	0	0	0
Amortization	(6)	(7)	(7)
Balance, end of year	$ 53	$ 59	$ 66