Derivatives and Hedging Activities - Fair Values, Volume of Activity and Gain (Loss) Information Related to Derivative Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Notional Amount	$ 141,039	$ 137,761
Derivative assets, netting adjustments	(330)	(284)
Derivative Assets, net	2,739	1,961
Derivative liabilities, netting adjustments	(2,689)	(1,526)
Derivative Liabilities, net	598	161
Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	105,248	99,107
Derivative Assets	3,073	2,207
Derivative Liabilities	3,336	1,683
Interest rate \| Derivatives Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	35,791	38,654
Derivative Assets	(4)	39
Derivative Liabilities	(49)	4
Interest rate \| Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	75,463	72,088
Derivative Assets	335	768
Derivative Liabilities	611	249
Foreign exchange \| Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	9,125	9,073
Derivative Assets	102	81
Derivative Liabilities	96	76
Commodity \| Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	17,643	14,151
Derivative Assets	2,613	1,330
Derivative Liabilities	2,613	1,335
Credit \| Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	204	465
Derivative Assets	1	1
Derivative Liabilities	6	12
Other
Derivatives, Fair Value [Line Items]
Derivative Assets	1
Other \| Derivatives Not Designated as Hedging Instruments
Derivatives, Fair Value [Line Items]
Notional Amount	2,813	3,330
Derivative Assets	22	27
Derivative Liabilities	10	11
Net derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	141,039	137,761
Derivative Assets, net	2,739	1,962
Derivative Liabilities, net	598	161
Other collateral
Derivatives, Fair Value [Line Items]
Notional Amount	0	0
Derivative Assets, net	0	(1)
Derivative Liabilities, net	$ 0	$ 0

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Amount of right to receive cash collateral under master netting arrangements offset against derivative liabilities.

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