DERIVATIVES - Schedule of Derivative Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Derivative Assets
Derivative assets	$ 2,771	$ 1,509
Less: Gross amounts offset in the Consolidated Balance Sheets	(775)	(235)
Less: Cash collateral applied	(644)	(58)
Total net derivative fair values presented in the Consolidated Balance Sheets	1,352	1,216
Derivative Liabilities
Derivative liabilities	4,147	922
Less: Gross amounts offset in the Consolidated Balance Sheets	(775)	(235)
Less: Cash collateral applied	(1,145)	(490)
Total net derivative fair values presented in the Consolidated Balance Sheets	2,227	197
Derivatives not designated as hedging instruments:
Derivative Assets
Derivative assets	2,757	1,497
Derivative Liabilities
Derivative liabilities	4,016	920
Interest rate contracts
Derivative Assets
Derivative assets	385	692
Derivative Liabilities
Derivative liabilities	1,830	176
Interest rate contracts | Derivatives designated as hedging instruments:
Derivatives, Fair Value [Line Items]
Notional Amount	39,687	23,450
Derivative Assets
Derivative assets	14	12
Derivative Liabilities
Derivative liabilities	131	2
Interest rate contracts | Derivatives not designated as hedging instruments:
Derivatives, Fair Value [Line Items]
Notional Amount	190,631	142,987
Derivative Assets
Derivative assets	371	680
Derivative Liabilities
Derivative liabilities	1,699	174
Foreign exchange contracts
Derivative Assets
Derivative assets	907	263
Derivative Liabilities
Derivative liabilities	879	231
Foreign exchange contracts | Derivatives not designated as hedging instruments:
Derivatives, Fair Value [Line Items]
Notional Amount	28,509	21,336
Derivative Assets
Derivative assets	907	263
Derivative Liabilities
Derivative liabilities	879	231
Commodities contracts
Derivative Assets
Derivative assets	1,382	508
Derivative Liabilities
Derivative liabilities	1,380	505
Commodities contracts | Derivatives not designated as hedging instruments:
Derivatives, Fair Value [Line Items]
Notional Amount	1,024	514
Derivative Assets
Derivative assets	1,382	508
Derivative Liabilities
Derivative liabilities	1,380	505
TBA contracts
Derivative Assets
Derivative assets	95	8
Derivative Liabilities
Derivative liabilities	23	8
TBA contracts | Derivatives not designated as hedging instruments:
Derivatives, Fair Value [Line Items]
Notional Amount	4,381	7,776
Derivative Assets
Derivative assets	95	8
Derivative Liabilities
Derivative liabilities	23	8
Other contracts
Derivative Assets
Derivative assets	2	38
Derivative Liabilities
Derivative liabilities	35	2
Other contracts | Derivatives not designated as hedging instruments:
Derivatives, Fair Value [Line Items]
Notional Amount	1,627	3,555
Derivative Assets
Derivative assets	2	38
Derivative Liabilities
Derivative liabilities	35	$ 2
Zero Cost Collar | Derivatives designated as hedging instruments: | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Notional Amount	$ 1,500