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	$ 5,115		$ 3,586
Amortization	(290)	$ (259)	(220)
Balance as of beginning-of-year	5,923	5,115
UL and Other
Changes in DFEL [Roll Forward]
Balance as of beginning-of-year	4,766	3,934	3,262
Deferrals	1,074	1,061
Amortization	(261)	(229)
Balance as of beginning-of-year	5,579	4,766	3,934
Less: ceded DFEL	2,252	31
Balance as of end-of-year, net of reinsurance	3,327	4,735
Variable Annuities
Changes in DFEL [Roll Forward]
Balance as of beginning-of-year	310	318	324
Deferrals	19	22
Amortization	(29)	(30)
Balance as of beginning-of-year	300	310	$ 318
Less: ceded DFEL	0	0
Balance as of end-of-year, net of reinsurance	$ 300	$ 310