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Investments (excluding Consolidated Investment Entities) - Net Investment Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	$ 536	$ 748	$ 1,777	$ 2,152
Less: Investment expenses	14	17	44	51
Net investment income	522	731	1,733	$ 2,101
Discontinued Operation, Equity Method Investment Retained after Disposal, Ownership Interest after Disposal				999.00%
Fixed maturities
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	483	501	1,457	$ 1,513
Investments in fixed maturities that did not produce net investment income	16		16		$ 0
Equity securities
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	(3)	4	6	15
Mortgage loans on real estate
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	58	59	177	184
Policy loans
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	5	7	16	18
Short-term investments and cash equivalents
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	3	2	6	7
Limited partnerships and other
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	$ (10)	$ 175	$ 115	$ 415