DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Effect of Cash Flow Hedging on Income Statement (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
Derivative [Line Items] | ||||
Interest Income - Loans and Leases | $ 501,000,000 | $ 494,000,000 | $ 981,000,000 | $ 975,000,000 |
Interest Expense - Short-Term Borrowings | $ 20,000,000 | $ 32,000,000 | 34,000,000 | 60,000,000 |
Interest rate contracts | ||||
Derivative [Line Items] | ||||
Amount of gain (loss) reclassified from AOCI into net income | 0 | 0 | ||
Interest rate contracts | Interest Income - Loans and Leases | ||||
Derivative [Line Items] | ||||
Amount of gain (loss) reclassified from AOCI into net income | (15,000,000) | (25,000,000) | ||
Interest rate contracts | Interest Expense - Short-Term Borrowings | ||||
Derivative [Line Items] | ||||
Amount of gain (loss) reclassified from AOCI into net income | $ 0 | $ 6,000,000 |