Investments - Unrealized net capital gains and losses included in AOCI (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair value
Fixed income securities:	$ 59,857	$ 59,044
Short-term investments	5,671	4,256
Derivative instruments	0	0
Gross unrealized Gains
Fixed income securities	2,196	2,847
Short-term investments	0	0
Derivative instruments	0	0
Gross unrealized Losses
Fixed income securities	(1,284)	(96)
Short-term investments	0	0
Derivative instruments	(3)	(3)
Unrealized net gains (losses)
Fixed income securities	912	2,751
Short-term investments	0	0
Derivative instruments	(3)	(3)
Equity method of accounting (“EMA”) limited partnerships	(2)	(4)
Unrealized net capital gains and losses, pre-tax	907	2,744
Amount recognized for:
Insurance reserves	(105)	(126)
DAC and DSI	(128)	(224)
Amounts recognized	(233)	(350)
Deferred income taxes	(144)	(507)
Total unrealized net capital gains and losses	$ 530	$ 1,887