BUSINESS COMBINATIONS - Pro Forma (Details) - TCF Financial Corporation - USD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2021 |
Dec. 31, 2020 |
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| Business Acquisition [Line Items] | ||
| Net income attributable to Huntington Bancshares Inc | $ 1,624 | $ 834 |
| Net interest income | ||
| Business Acquisition [Line Items] | ||
| Pro forma revenue | 4,713 | 4,774 |
| Noninterest income | ||
| Business Acquisition [Line Items] | ||
| Pro forma revenue | $ 2,112 | $ 2,127 |
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- 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. No definition available.
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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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