Derivatives and Hedging Activities (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivatives, gross	$ 423	$ 590
Derivatives, gross	341	139
Derivative asset and derivative liability netting, assets	(173)	(93)
Derivative asset and derivative liability netting, liabilities	(173)	(93)
Cash collateral netting, assets	(12)	(204)
Cash collateral netting, liabilities	(30)	(4)
Total derivatives assets, net	238	293
Total derivatives liabilities, net	138	42
Other Assets | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives, gross	199	423
Other Assets | Interest Rate Contract | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives, gross	34	204
Other Assets | Foreign Exchange Contract | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives, gross	165	219
Other Assets | Foreign Exchange Contract | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives, gross	224	167
Other Liabilities | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives, gross	237	54
Other Liabilities | Interest Rate Contract | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives, gross	55	0
Other Liabilities | Foreign Exchange Contract | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives, gross	182	54
Other Liabilities | Foreign Exchange Contract | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivatives, gross	$ 104	$ 85