Investments (Other Invested Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Other Investments [Abstract]
Other invested assets	$ 1,140	$ 1,074
Gain (Loss) on Derivatives [Member]
Other Investments [Abstract]
Other invested assets	170	175
Other [Member]
Other Investments [Abstract]
Other invested assets	102	141
Equity Release Mortgages [Member]
Other Investments [Abstract]
Other invested assets	$ 868	$ 758