Deferred Policy Acquisition Costs, Value of Business Acquired and Other Intangibles (Unearned Revenue) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Universal Life Insurance
Deferred Revenue Arrangement [Line Items]
Balance, beginning of period	$ 143	$ 118
Capitalization	18	18
Amortization	(5)	(5)
Balance, end of period	156	131
ULSG
Deferred Revenue Arrangement [Line Items]
Balance, beginning of period	488	344
Capitalization	88	91
Amortization	(23)	(17)
Balance, end of period	553	418
Variable Annuities
Deferred Revenue Arrangement [Line Items]
Balance, beginning of period	73	79
Capitalization	0	1
Amortization	(4)	(4)
Balance, end of period	$ 69	$ 76