Annual report pursuant to Section 13 and 15(d)

BORROWINGS - Schedule of Credit Linked Notes (Details)

v3.25.0.1
BORROWINGS - Schedule of Credit Linked Notes (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Debt Instrument [Line Items]    
Long-term debt, aggregate unpaid principal $ 16,679  
Long-term debt [1] 16,374 $ 12,394
Estimate of Fair Value Measurement    
Debt Instrument [Line Items]    
Long-term debt 16,573 12,276
Credit linked notes (1)    
Debt Instrument [Line Items]    
Long-term debt 821 $ 0
Credit linked notes (1) | Bank    
Debt Instrument [Line Items]    
Long-term debt, aggregate unpaid principal $ 817  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 (1) | Credit linked notes (1)    
Debt Instrument [Line Items]    
Weighted average rate 6.66%  
Reference pool $ 3,014  
Debt stated interest rate 6.15%  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 (1) | Credit linked notes (1) | Minimum    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.40%  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 (1) | Credit linked notes (1) | Maximum    
Debt Instrument [Line Items]    
Basis spread on variable rate 8.25%  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 (1) | Credit linked notes (1) | Weighted Average    
Debt Instrument [Line Items]    
Basis spread on variable rate 3.04%  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 (1) | Credit linked notes (1) | Bank    
Debt Instrument [Line Items]    
Long-term debt, aggregate unpaid principal $ 366  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 (2) | Credit linked notes (1)    
Debt Instrument [Line Items]    
Weighted average rate 6.03%  
Reference pool $ 3,740  
Debt stated interest rate 5.44%  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 (2) | Credit linked notes (1) | Minimum    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.35%  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 (2) | Credit linked notes (1) | Maximum    
Debt Instrument [Line Items]    
Basis spread on variable rate 7.50%  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 (2) | Credit linked notes (1) | Weighted Average    
Debt Instrument [Line Items]    
Basis spread on variable rate 2.99%  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 (2) | Credit linked notes (1) | Bank    
Debt Instrument [Line Items]    
Long-term debt, aggregate unpaid principal $ 451  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 | Credit linked notes (1)    
Debt Instrument [Line Items]    
Reference pool 6,754  
Long-term debt 821  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 | Credit linked notes (1) | Estimate of Fair Value Measurement    
Debt Instrument [Line Items]    
Long-term debt 4  
Huntington National Bank Unsecured Notes Maturing May 20, 2032 | Credit linked notes (1) | Bank    
Debt Instrument [Line Items]    
Long-term debt, aggregate unpaid principal $ 817  
[1] Includes VIE balances in net loans and leases, long-term debt, other assets, and other liabilities of $1.1 billion, $1.0 billion, $264 million, and $109 million, respectively, at December 31, 2024, and VIE balances in other assets, and other liabilities of $82 million and $57 million, at December 31, 2023, respectively. See Note 20 - “Variable Interest Entities” for additional information.