Segment Information (Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total assets	$ 247,255	$ 235,288
Annuities
Segment Reporting Information [Line Items]
Total assets	174,489	167,806
Life
Segment Reporting Information [Line Items]
Total assets	18,190	17,796
Run-off
Segment Reporting Information [Line Items]
Total assets	37,069	38,366
Corporate & Other
Segment Reporting Information [Line Items]
Total assets	$ 17,507	$ 11,320