Segment Information - Premiums and Deposits by Geographic Location (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Premiums and Annuity Deposits	$ 46,434	$ 37,728	$ 54,879
Total US region
Segment Reporting Information [Line Items]
Premiums and Annuity Deposits	34,646	25,380	19,187
Bermuda
Segment Reporting Information [Line Items]
Premiums and Annuity Deposits	$ 11,788	$ 12,348	$ 35,692