DAC, VOBA, DSI, and DFEL - DFEL (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Changes in DFEL [Roll Forward]
Balance as of beginning-of-year	$ 5,091		$ 3,591
Amortization	(288)	$ (257)	(220)
Balance as of beginning-of-year	5,901	5,091
UL and Other
Changes in DFEL [Roll Forward]
Balance as of beginning-of-year	4,766	3,934	3,298
Deferrals	1,074	1,061
Amortization	(261)	(229)
Balance as of beginning-of-year	5,579	4,766	3,934
Less: ceded DFEL	257	0
Balance as of end-of-year, net of reinsurance	5,322	4,766
Variable Annuities
Changes in DFEL [Roll Forward]
Balance as of beginning-of-year	286	291	293
Deferrals	19	23
Amortization	(27)	(28)
Balance as of beginning-of-year	278	286	$ 291
Less: ceded DFEL	0	0
Balance as of end-of-year, net of reinsurance	$ 278	$ 286