Annual report pursuant to Section 13 and 15(d)

DERIVATIVE FINANCIAL INSTRUMENTS - Gain (Loss) (Details)

v3.24.0.1
DERIVATIVE FINANCIAL INSTRUMENTS - Gain (Loss) (Details) - Derivatives not designated as Hedging Instruments - Fair Value Hedging - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Interest rate contracts      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gain (loss) $ 31 $ (21) $ 132
Interest rate contracts | Capital markets fees      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gain (loss) 30 47 50
Interest rate contracts | Mortgage banking income      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gain (loss) (10) (109) (26)
Interest rate floors | Interest and fee income on loans and leases      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gain (loss) 0 0 (8)
Interest rate caps | Interest expense on long-term debt      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gain (loss) 0 0 89
Interest rate swaptions | Other noninterest income      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gain (loss) (24) 0 0
Foreign exchange contracts | Capital markets fees      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gain (loss) 45 45 32
Commodities contracts | Capital markets fees      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gain (loss) 5 5 3
Equity contracts | Other noninterest expense      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gain (loss) (13) (9) (8)
Credit contracts | Other noninterest income      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gain (loss) $ (2) $ 0 $ 0