Investments (Other Invested Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Other invested assets	$ 3,033	$ 3,070
Limited Partner [Member]
Other invested assets	1,943	1,996
Equity Release Mortgages [Member]
Other invested assets	823	758
Derivatives
Other invested assets	134	175
Other
Other invested assets	$ 133	$ 141