v3.26.3
FAIR VALUE MEASUREMENTS - Schedule of Assets and Liabilities on Recurring Basis (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale $ 3,747 $ 3,727
Loans held for sale 228 514 [1]
Loans receivable 101 85
Derivative financial instruments 159 122
Derivative financial instruments 309 208
U.S. Treasury    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 397 356
U.S. government agencies    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 27 35
U.S. GSE    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 280 266
Agency MBS    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 710 800
Agency CMO    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 494 601
Agency commercial MBS    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 1,750 1,599
States of the U.S. and political subdivisions (municipals)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 10 19
Other debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 79 51
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 397 356
Loans receivable 0 0
Derivative financial instruments 0 0
Derivative financial instruments 0 0
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 3,350 3,371
Loans receivable 228 514
Derivative financial instruments 159 115
Derivative financial instruments 303 208
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Loans receivable 35,399 33,806
Derivative financial instruments 0 7
Derivative financial instruments 6 0
Fair Value, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 3,747 3,727
Loans held for sale 228 514
Loans receivable 101 85
Derivative financial instruments 159 122
Total assets measured at fair value on a recurring basis 4,235 4,448
Derivative financial instruments 309 208
Total liabilities measured at fair value on a recurring basis 309 208
Fair Value, Recurring | U.S. Treasury    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 397 356
Fair Value, Recurring | U.S. government agencies    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 27 35
Fair Value, Recurring | U.S. GSE    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 280 266
Fair Value, Recurring | Agency MBS    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 710 800
Fair Value, Recurring | Agency CMO    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 494 601
Fair Value, Recurring | Agency commercial MBS    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 1,750 1,599
Fair Value, Recurring | States of the U.S. and political subdivisions (municipals)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 10 19
Fair Value, Recurring | Other debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 79 51
Fair Value, Recurring | Trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 279 207
Fair Value, Recurring | Not for trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 30 1
Fair Value, Recurring | Trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 149 102
Fair Value, Recurring | Not for trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 10 20
Fair Value, Recurring | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 397 356
Loans held for sale 0 0
Loans receivable 0 0
Derivative financial instruments 0 0
Total assets measured at fair value on a recurring basis 397 356
Derivative financial instruments 0 0
Total liabilities measured at fair value on a recurring basis 0 0
Fair Value, Recurring | Level 1 | U.S. Treasury    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 397 356
Fair Value, Recurring | Level 1 | U.S. government agencies    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 1 | U.S. GSE    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 1 | Agency MBS    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 1 | Agency CMO    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 1 | Agency commercial MBS    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 1 | States of the U.S. and political subdivisions (municipals)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 1 | Other debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 1 | Trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 0 0
Fair Value, Recurring | Level 1 | Not for trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 0 0
Fair Value, Recurring | Level 1 | Trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 0 0
Fair Value, Recurring | Level 1 | Not for trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 0 0
Fair Value, Recurring | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 3,350 3,371
Loans held for sale 228 514
Loans receivable 0 0
Derivative financial instruments 159 115
Total assets measured at fair value on a recurring basis 3,737 4,000
Derivative financial instruments 303 208
Total liabilities measured at fair value on a recurring basis 303 208
Fair Value, Recurring | Level 2 | U.S. Treasury    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 2 | U.S. government agencies    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 27 35
Fair Value, Recurring | Level 2 | U.S. GSE    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 280 266
Fair Value, Recurring | Level 2 | Agency MBS    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 710 800
Fair Value, Recurring | Level 2 | Agency CMO    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 494 601
Fair Value, Recurring | Level 2 | Agency commercial MBS    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 1,750 1,599
Fair Value, Recurring | Level 2 | States of the U.S. and political subdivisions (municipals)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 10 19
Fair Value, Recurring | Level 2 | Other debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 79 51
Fair Value, Recurring | Level 2 | Trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 279 207
Fair Value, Recurring | Level 2 | Not for trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 24 1
Fair Value, Recurring | Level 2 | Trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 149 102
Fair Value, Recurring | Level 2 | Not for trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 10 13
Fair Value, Recurring | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Loans held for sale 0 0
Loans receivable 101 85
Derivative financial instruments 0 7
Total assets measured at fair value on a recurring basis 101 92
Derivative financial instruments 6 0
Total liabilities measured at fair value on a recurring basis 6 0
Fair Value, Recurring | Level 3 | U.S. Treasury    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 3 | U.S. government agencies    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 3 | U.S. GSE    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 3 | Agency MBS    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 3 | Agency CMO    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 3 | Agency commercial MBS    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 3 | States of the U.S. and political subdivisions (municipals)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 3 | Other debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt securities available for sale 0 0
Fair Value, Recurring | Level 3 | Trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 0 0
Fair Value, Recurring | Level 3 | Not for trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 6 0
Fair Value, Recurring | Level 3 | Trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments 0 0
Fair Value, Recurring | Level 3 | Not for trading    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments $ 0 $ 7
[1] Amount represents loans for which we have elected the fair value option. See Note 19.