v3.26.3
FAIR VALUE (Schedule of Assets and Liabilities Measured at Fair Value by Class on a Recurring Basis) (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
ASSETS    
Trading securities $ 191 $ 64
Loans held for sale 34 71
Derivatives 771 360
Netting (601) (283)
Derivatives 170 77
Other liabilities:    
Derivatives 783 260
Netting (209) (68)
Derivatives 574 192
Fair Value, Recurring    
ASSETS    
Trading securities 191 64
Loans held for sale 34 71
Agriculture loan servicing 18 18
Deferred compensation plan assets 172 154
Netting (601) (283)
Derivatives 170 77
Total assets 10,168 10,327
Fed funds and other short-term borrowings:    
Securities sold, not yet purchased 18 135
Other liabilities:    
Netting (209) (68)
Derivatives 574 192
Total liabilities 592 327
Total available-for-sale | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 8,786 9,207
U.S. Treasury, agencies, and corporations | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 7,986 8,273
Municipal securities | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 775 909
Other debt securities | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 25 25
Bank-owned life insurance | Fair Value, Recurring    
ASSETS    
Other noninterest-bearing investments 582 573
Private equity investments | Fair Value, Recurring    
ASSETS    
Other noninterest-bearing investments 215 163
Level 1 | Fair Value, Recurring    
ASSETS    
Trading securities 0 0
Loans held for sale 0 0
Agriculture loan servicing 0 0
Deferred compensation plan assets 172 154
Derivatives 0 0
Total assets 2,240 1,571
Fed funds and other short-term borrowings:    
Securities sold, not yet purchased 18 135
Other liabilities:    
Derivatives 0 0
Total liabilities 18 135
Level 1 | Total available-for-sale | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 2,065 1,411
Level 1 | U.S. Treasury, agencies, and corporations | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 2,065 1,411
Level 1 | Municipal securities | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 0 0
Level 1 | Other debt securities | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 0 0
Level 1 | Bank-owned life insurance | Fair Value, Recurring    
ASSETS    
Other noninterest-bearing investments 0 0
Level 1 | Private equity investments | Fair Value, Recurring    
ASSETS    
Other noninterest-bearing investments 3 6
Level 2 | Fair Value, Recurring    
ASSETS    
Trading securities 191 64
Loans held for sale 34 71
Agriculture loan servicing 0 0
Deferred compensation plan assets 0 0
Derivatives 771 360
Total assets 8,299 8,864
Fed funds and other short-term borrowings:    
Securities sold, not yet purchased 0 0
Other liabilities:    
Derivatives 783 260
Total liabilities 783 260
Level 2 | Total available-for-sale | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 6,721 7,796
Level 2 | U.S. Treasury, agencies, and corporations | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 5,921 6,862
Level 2 | Municipal securities | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 775 909
Level 2 | Other debt securities | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 25 25
Level 2 | Bank-owned life insurance | Fair Value, Recurring    
ASSETS    
Other noninterest-bearing investments 582 573
Level 2 | Private equity investments | Fair Value, Recurring    
ASSETS    
Other noninterest-bearing investments 0 0
Level 3 | Fair Value, Recurring    
ASSETS    
Trading securities 0 0
Loans held for sale 0 0
Agriculture loan servicing 18 18
Deferred compensation plan assets 0 0
Derivatives 0 0
Total assets 230 175
Fed funds and other short-term borrowings:    
Securities sold, not yet purchased 0 0
Other liabilities:    
Derivatives 0 0
Total liabilities 0 0
Level 3 | Total available-for-sale | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 0 0
Level 3 | U.S. Treasury, agencies, and corporations | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 0 0
Level 3 | Municipal securities | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 0 0
Level 3 | Other debt securities | Fair Value, Recurring    
ASSETS    
Investment securities, available-for-sale 0 0
Level 3 | Bank-owned life insurance | Fair Value, Recurring    
ASSETS    
Other noninterest-bearing investments 0 0
Level 3 | Private equity investments | Fair Value, Recurring    
ASSETS    
Other noninterest-bearing investments $ 212 $ 157