v3.25.2
FAIR VALUE (Schedule of Assets and Liabilities Measured at Fair Value by Class on a Recurring Basis Using Level 3 Inputs) (Details) - Level 3 - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Private equity investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value of assets, beginning balance $ 109 $ 98 $ 105 $ 92
Unrealized securities gains, net 20 2 24 2
Other noninterest income 0 0 0 0
Purchases 4 2 5 9
Cost of investments sold (5) (1) (6) (2)
Transfers out (12) 0 (12) 0
Fair value of assets, ending balance 116 101 116 101
Ag loan servicing        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value of assets, beginning balance 19 19 20 19
Unrealized securities gains, net 0 0 0 0
Other noninterest income 1 1 0 1
Purchases 0 0 0 0
Cost of investments sold 0 0 0 0
Transfers out 0 0 0 0
Fair value of assets, ending balance $ 20 $ 20 $ 20 $ 20