v3.26.3
BORROWINGS - Schedule of Long-Term Debt and Debt Issuances (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Long-term debt [1] $ 17,341 $ 17,221
FHLB Advances    
Debt Instrument [Line Items]    
Long-term debt 3,149 4,514
Credit Linked Notes    
Debt Instrument [Line Items]    
Long-term debt $ 1,561 1,161
Credit Linked Notes | Huntington National Bank Unsecured Notes Maturing May 20, 2032    
Debt Instrument [Line Items]    
Weighted average rate 5.87%  
Auto Loan Securitization Trust    
Debt Instrument [Line Items]    
Long-term debt $ 352 600
Weighted average rate 5.20%  
Other    
Debt Instrument [Line Items]    
Long-term debt $ 586 497
Parent    
Debt Instrument [Line Items]    
Long-term debt 8,300 7,024
Parent | Senior Notes    
Debt Instrument [Line Items]    
Long-term debt 6,272 5,514
Parent | Subordinated Notes    
Debt Instrument [Line Items]    
Long-term debt 2,028 1,510
Bank    
Debt Instrument [Line Items]    
Long-term debt 3,393 3,425
Bank | Senior Notes    
Debt Instrument [Line Items]    
Long-term debt 3,155 3,192
Bank | Subordinated Notes    
Debt Instrument [Line Items]    
Long-term debt $ 238 $ 233
[1] Includes VIE balances in net loans and leases, other assets, long-term debt, and other liabilities of $415 million, $454 million, $352 million, and $117
million, respectively, at September 30, 2026, and $669 million, $431 million, $600 million, and $152 million, respectively, at December 31, 2025. See Note
16 - “Variable Interest Entities” for additional information.