Derivative Instruments - Credit Derivatives, Protection Sold, Notional and Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Protection sold credit derivatives ratings/maturity profile
Protection sold credit derivatives ratings/maturity profile - less than 1 year	$ (117,567)	$ (123,330)
Protection sold credit derivatives ratings/maturity profile - from 1-5 years	(371,034)	(339,957)
Protection sold credit derivatives ratings/maturity profile - more than 5 years	(37,459)	(36,324)
Total notional amount	(526,060)	(499,611)
Fair value of receivables	2,616	6,275
Fair value of payables	(7,748)	(2,626)
Net fair value	(5,132)	3,649
Investment-grade
Protection sold credit derivatives ratings/maturity profile
Protection sold credit derivatives ratings/maturity profile - less than 1 year	(81,541)	(91,155)
Protection sold credit derivatives ratings/maturity profile - from 1-5 years	(278,902)	(255,106)
Protection sold credit derivatives ratings/maturity profile - more than 5 years	(29,619)	(29,035)
Total notional amount	(390,062)	(375,296)
Fair value of receivables	1,749	3,645
Fair value of payables	(2,470)	(623)
Net fair value	(721)	3,022
Noninvestment-grade
Protection sold credit derivatives ratings/maturity profile
Protection sold credit derivatives ratings/maturity profile - less than 1 year	(36,026)	(32,175)
Protection sold credit derivatives ratings/maturity profile - from 1-5 years	(92,132)	(84,851)
Protection sold credit derivatives ratings/maturity profile - more than 5 years	(7,840)	(7,289)
Total notional amount	(135,998)	(124,315)
Fair value of receivables	867	2,630
Fair value of payables	(5,278)	(2,003)
Net fair value	$ (4,411)	$ 627