Fair Values - Detail of Loans and Lending Commitments at Fair Value and Unsettled Fair Value of Futures Contracts (Details) - Recurring - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Loans and lending commitments
Fair Value Measurements
Trading assets	$ 12,627	$ 11,148
Loans and lending commitments | Corporate
Fair Value Measurements
Trading assets	8	13
Loans and lending commitments | Secured lending facilities
Fair Value Measurements
Trading assets	0	648
Loans and lending commitments | Commercial real estate
Fair Value Measurements
Trading assets	863	916
Loans and lending commitments | Residential real estate
Fair Value Measurements
Trading assets	3,911	2,145
Loans and lending commitments | Securities-based lending and Other loans
Fair Value Measurements
Trading assets	7,845	7,426
Futures Contracts | Customer and other receivables, net
Fair Value Measurements
Derivative assets, unsettled fair value	$ 948	$ 434