Investments - Unrealized net capital gains and losses included in AOCI (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Fair value
Fixed income securities, at fair value	$ 40,745	$ 42,136
Short-term investments	4,344	4,009
Derivative instruments	0	0
Gross unrealized Gains
Fixed income securities	189	1,002
Short-term investments	0	0
Derivative instruments	0	0
Gross unrealized Losses
Fixed income securities	(1,471)	(242)
Short-term investments	(1)	0
Derivative instruments	(3)	(3)
Unrealized net gains (losses)
Fixed income securities	(1,282)	760
Short-term investments	(1)	0
Derivative instruments	(3)	(3)
Equity method of accounting limited partnerships	4	(1)
Unrealized net capital gains and losses, pre-tax	(1,282)	756
Amount recognized for:
DAC	1	1
Reclassification of noncontrolling interest	16	4
Amounts recognized	17	5
Deferred income taxes	270	(163)
Unrealized net capital gains and losses, after-tax	$ (995)	$ 598