Investments (Net Unrealized Investment Gains (Losses)) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Fixed maturity securities	$ (9,885)	$ 8,251
Derivatives	917	320
Other	(7)	(27)
Subtotal	(8,975)	8,544
Amounts allocated from: Future policy benefits	379	(3,210)
Amounts allocated from: DAC, VOBA and DSI	481	(387)
Subtotal	860	(3,597)
Deferred income tax benefit (expense)	1,704	(1,039)
Net unrealized investment gains (losses)	$ (6,411)	$ 3,908