Derivative Instruments - Credit Derivatives, Protection Sold, Notional and Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Protection sold credit derivatives and credit related notes ratings/maturity profile
Less than 1 year	$ (123,728)	$ (123,330)
From 1-5 years	(381,802)	(339,957)
More than 5 years	(37,192)	(36,324)
Total notional amount	(542,722)	(499,611)
Fair value of receivables	3,591	6,275
Fair value of payables	(4,704)	(2,626)
Net fair value	(1,113)	3,649
Investment-grade
Protection sold credit derivatives and credit related notes ratings/maturity profile
Less than 1 year	(90,484)	(91,155)
From 1-5 years	(294,791)	(255,106)
More than 5 years	(30,822)	(29,035)
Total notional amount	(416,097)	(375,296)
Fair value of receivables	2,324	3,645
Fair value of payables	(1,495)	(623)
Net fair value	829	3,022
Noninvestment-grade
Protection sold credit derivatives and credit related notes ratings/maturity profile
Less than 1 year	(33,244)	(32,175)
From 1-5 years	(87,011)	(84,851)
More than 5 years	(6,370)	(7,289)
Total notional amount	(126,625)	(124,315)
Fair value of receivables	1,267	2,630
Fair value of payables	(3,209)	(2,003)
Net fair value	$ (1,942)	$ 627