v3.26.1
BORROWINGS - Schedule of Long-Term Debt and Debt Issuances (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Long-term debt [1] $ 18,738 $ 17,221
FHLB Advances    
Debt Instrument [Line Items]    
Long-term debt 4,653 4,514
Credit Linked Notes    
Debt Instrument [Line Items]    
Long-term debt $ 1,250 1,161
Credit Linked Notes | Huntington National Bank Unsecured Notes Maturing May 20, 2032    
Debt Instrument [Line Items]    
Weighted average rate 5.53%  
Auto Loan Securitization Trust    
Debt Instrument [Line Items]    
Long-term debt $ 428 600
Weighted average rate 5.21%  
Other    
Debt Instrument [Line Items]    
Long-term debt $ 505 497
Parent    
Debt Instrument [Line Items]    
Long-term debt 8,492 7,024
Parent | Senior Notes    
Debt Instrument [Line Items]    
Long-term debt 6,407 5,514
Parent | Subordinated Notes    
Debt Instrument [Line Items]    
Long-term debt 2,085 1,510
Bank    
Debt Instrument [Line Items]    
Long-term debt 3,410 3,425
Bank | Senior Notes    
Debt Instrument [Line Items]    
Long-term debt 3,174 3,192
Bank | Subordinated Notes    
Debt Instrument [Line Items]    
Long-term debt $ 236 $ 233
[1] Includes VIE balances in net loans and leases, other assets, long-term debt, and other liabilities of $493 million, $468 million, $428 million, and $134
million, respectively, at June 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.