Annual report pursuant to Section 13 and 15(d)

DERIVATIVE FINANCIAL INSTRUMENTS - Fair Value Hedges (Details)

v3.25.0.1
DERIVATIVE FINANCIAL INSTRUMENTS - Fair Value Hedges (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]      
Fair value hedging adjustments $ (56) $ (69)  
Investment Securities      
Derivative Instruments, Gain (Loss) [Line Items]      
Designated hedged items 11,000    
Amortized Cost 16,390 18,241  
Cumulative Amount of Fair Value Hedging Adjustment To Hedged Items (458) (698)  
Subordinated notes      
Derivative Instruments, Gain (Loss) [Line Items]      
Amortized Cost 11,589 9,909  
Cumulative Amount of Fair Value Hedging Adjustment To Hedged Items (223) (115)  
Interest income available for sale securities taxable | Investment Securities      
Derivative Instruments, Gain (Loss) [Line Items]      
Change in fair value for derivatives designated as fair value hedges (246) (284) $ 875
Interest income available for sale securities taxable | Hedged investment securities      
Derivative Instruments, Gain (Loss) [Line Items]      
Change in fair value for derivatives designated as fair value hedges 239 282 (862)
Interest expense subordinated notes and other long term debt | Subordinated notes      
Derivative Instruments, Gain (Loss) [Line Items]      
Change in fair value for derivatives designated as fair value hedges (109) 141 (300)
Interest expense subordinated notes and other long term debt | Hedged Subordinated notes      
Derivative Instruments, Gain (Loss) [Line Items]      
Change in fair value for derivatives designated as fair value hedges $ 108 $ (141) $ 300