DERIVATIVE FINANCIAL INSTRUMENTS - Derivatives Used in Customer Related Activities (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Derivative [Line Items] | ||
| Credit risks from interest rate swaps used for trading purposes | $ 142 | $ 76 |
| Derivative used in trading activity | ||
| Derivative [Line Items] | ||
| Net derivative asset (liability) | 52 | 72 |
| Derivative financial instruments used by Huntington on behalf of customers including offsetting derivatives, notional value | $ 50,700 | $ 45,200 |
| X | ||||||||||
- Definition Credit risks from interest rate swaps used for trading purposes. No definition available.
|
| X | ||||||||||
- Definition Derivative financial instruments used by Huntington on behalf of customers including offsetting derivatives, notional value. No definition available.
|
| X | ||||||||||
- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|