Derivative Instruments and Hedging Activities - Offsetting Assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Derivative assets
Derivative assets, gross amount	$ 3,098	$ 2,690
Derivative assets, offsetting financial instruments	(759)	(252)
Derivative assets, offsetting cash collateral	(375)	(290)
Total derivative assets	1,964	2,148
Derivative assets, securities not netted	(96)	0
Net Exposure	1,868	2,148
Derivative, collateral, obligation to return cash	608	377
Derivative, collateral, obligation to return securities	82	1
Derivative, collateral, right to reclaim cash	$ 2,300	$ 2,000