Quarterly report pursuant to Section 13 or 15(d)

VARIABLE INTEREST ENTITIES - Narrative (Details)

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VARIABLE INTEREST ENTITIES - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Variable Interest Entity [Line Items]    
Loans retained by Huntington $ 128,000,000  
Affordable housing investments, impairment 0 $ 0
Consolidated VIE | Asset-backed securities    
Variable Interest Entity [Line Items]    
Aggregate loans 1,600,000,000  
Consolidated VIE | Consumer | Automobile    
Variable Interest Entity [Line Items]    
Aggregate loans $ 1,600,000,000