Closed Block (Revenues and Expenses) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues
Premiums	$ 267	$ 310	$ 816	$ 955
Net investment income	326	390	1,039	1,165
Net investment gains (losses)	(4)	(7)	(52)	(12)
Net derivative gains (losses)	28	12	39	19
Total revenues	617	705	1,842	2,127
Expenses
Policyholder benefits and claims	459	522	1,404	1,588
Policyholder dividends	91	127	352	478
Other expenses	22	24	68	73
Total expenses	572	673	1,824	2,139
Revenues, net of expenses before provision for income tax expense (benefit)	45	32	18	(12)
Provision for income tax expense (benefit)	10	6	4	(3)
Revenues, net of expenses and provision for income tax expense (benefit)	$ 35	$ 26	$ 14	$ (9)