v3.26.1
SEGMENT REPORTING (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2026
USD ($)
business_unit
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Segment Reporting Information [Line Items]      
Number of reporting segments | business_unit 2    
Net interest income (loss) $ 1,891 $ 1,426  
Provision for credit losses 158 115  
Net interest income (loss) after provision for credit losses 1,733 1,311  
Noninterest income 682 494  
Noninterest expense:      
Direct personnel costs 992 671  
Other noninterest expense, including corporate allocations 782 481  
Total noninterest expense 1,774 1,152  
Income (loss) before income taxes 641 653  
Provision (benefit) for income taxes 114 122  
Income attributable to non-controlling interest 4 4  
Net income attributable to Huntington 523 527  
Assets 285,372   $ 225,106
Deposits 223,482   176,610
Operating Segments | Consumer & Regional Banking      
Segment Reporting Information [Line Items]      
Net interest income (loss) 1,365 943  
Provision for credit losses 120 47  
Net interest income (loss) after provision for credit losses 1,245 896  
Noninterest income 387 327  
Noninterest expense:      
Direct personnel costs 373 294  
Other noninterest expense, including corporate allocations 694 525  
Total noninterest expense 1,067 819  
Income (loss) before income taxes 565 404  
Provision (benefit) for income taxes 119 85  
Income attributable to non-controlling interest 0 0  
Net income attributable to Huntington 446 319  
Assets 115,176   87,307
Deposits 153,000   117,188
Operating Segments | Commercial Banking      
Segment Reporting Information [Line Items]      
Net interest income (loss) 640 513  
Provision for credit losses 38 68  
Net interest income (loss) after provision for credit losses 602 445  
Noninterest income 252 162  
Noninterest expense:      
Direct personnel costs 193 139  
Other noninterest expense, including corporate allocations 218 164  
Total noninterest expense 411 303  
Income (loss) before income taxes 443 304  
Provision (benefit) for income taxes 93 64  
Income attributable to non-controlling interest 4 4  
Net income attributable to Huntington 346 236  
Assets 94,845   79,798
Deposits 60,775   50,657
Treasury / Other      
Segment Reporting Information [Line Items]      
Net interest income (loss) (114) (30)  
Provision for credit losses 0 0  
Net interest income (loss) after provision for credit losses (114) (30)  
Noninterest income 43 5  
Noninterest expense:      
Direct personnel costs 426 238  
Other noninterest expense, including corporate allocations (130) (208)  
Total noninterest expense 296 30  
Income (loss) before income taxes (367) (55)  
Provision (benefit) for income taxes (98) (27)  
Income attributable to non-controlling interest 0 0  
Net income attributable to Huntington (269) $ (28)  
Assets 75,351   58,001
Deposits $ 9,707   $ 8,765