Annual report pursuant to Section 13 and 15(d)

BUSINESS COMBINATIONS - Pro Forma (Details)

v3.22.4
BUSINESS COMBINATIONS - Pro Forma (Details) - TCF Financial Corporation - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
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