Commitments and Contingencies - Narrative - (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Other Commitments [Line Items]
Other Liabilities	$ 13,310	$ 14,277
Trading assets at fair value	5,230	4,423
Variable Interest Entity & TRS Contracts
Other Commitments [Line Items]
VIE Assets	1,531	1,519
Other Liabilities	73	50
Trading assets at fair value	1,440	$ 1,491
Max
Loss Contingency [Abstract]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$ 200