Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE FINANCIAL INSTRUMENTS - Asset and Liability Management (Details)

v3.22.1
DERIVATIVE FINANCIAL INSTRUMENTS - Asset and Liability Management (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Notional Disclosures [Abstract]      
Notional Value $ 25,957   $ 21,577
Increase decrease to net interest income due to derivative adjustment 39 $ 225  
Not Designated as Hedging Instrument, Economic Hedge      
Notional Disclosures [Abstract]      
Notional Value 271   271
Fair Value Hedging | Derivatives designated as Hedging Instruments      
Notional Disclosures [Abstract]      
Notional Value 12,761   10,156
Cash Flow Hedging | Derivatives designated as Hedging Instruments      
Notional Disclosures [Abstract]      
Notional Value 12,925   11,150
Investment securities      
Notional Disclosures [Abstract]      
Notional Value 9,481   8,228
Investment securities | Not Designated as Hedging Instrument, Economic Hedge      
Notional Disclosures [Abstract]      
Notional Value 0   0
Investment securities | Fair Value Hedging | Derivatives designated as Hedging Instruments      
Notional Disclosures [Abstract]      
Notional Value 9,481   8,228
Investment securities | Cash Flow Hedging | Derivatives designated as Hedging Instruments      
Notional Disclosures [Abstract]      
Notional Value 0   0
Loans      
Notional Disclosures [Abstract]      
Notional Value 13,196   11,421
Loans | Not Designated as Hedging Instrument, Economic Hedge      
Notional Disclosures [Abstract]      
Notional Value 271   271
Loans | Fair Value Hedging | Derivatives designated as Hedging Instruments      
Notional Disclosures [Abstract]      
Notional Value 0   0
Loans | Cash Flow Hedging | Derivatives designated as Hedging Instruments      
Notional Disclosures [Abstract]      
Notional Value 12,925   11,150
Long-term debt      
Notional Disclosures [Abstract]      
Notional Value 3,280   1,928
Long-term debt | Not Designated as Hedging Instrument, Economic Hedge      
Notional Disclosures [Abstract]      
Notional Value 0   0
Long-term debt | Fair Value Hedging | Derivatives designated as Hedging Instruments      
Notional Disclosures [Abstract]      
Notional Value 3,280   1,928
Long-term debt | Cash Flow Hedging | Derivatives designated as Hedging Instruments      
Notional Disclosures [Abstract]      
Notional Value $ 0   $ 0