Quarterly report [Sections 13 or 15(d)]

DERIVATIVE FINANCIAL INSTRUMENTS - Financial Assets and Liabilities that are Offset (Details)

v3.25.1
DERIVATIVE FINANCIAL INSTRUMENTS - Financial Assets and Liabilities that are Offset (Details)
$ in Millions
3 Months Ended
Mar. 31, 2025
USD ($)
group
Dec. 31, 2024
USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Number of primary groups | group 2  
Aggregate credit risk, net of collateral $ 61 $ 192
Investment securities and cash collateral pledged by Huntington 207  
Investment securities and cash collateral pledged to Huntington $ 239