Supplemental Disclosures of Cash Flow (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Supplemental Disclosures of Cash Flow Data [Abstract]
Interest paid	$ 277	$ 283	$ 281
Income taxes paid (received)	1	22	260
Significant non-cash investing and financing transactions:
Equity securities received in exchange of fixed maturity AFS securities		$ 19
Net reduction of fixed maturity AFS securities and accrued investment income in connection with a reinsurance transaction	$ (3,499)
Reduction of other investments in connection with the expiration of a repurchase agreement			$ (150)