Annual report pursuant to Section 13 and 15(d)

Cover Page

v3.24.0.1
Cover Page - USD ($)
 12 Months Ended
Dec. 31, 2023
Jan. 31, 2024
Jun. 30, 2023
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Entity File Number 1-34073    
Entity Registrant Name Huntington Bancshares Incorporated    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 31-0724920    
Entity Address, Address Line One 41 South High Street    
Entity Address, City or Town Columbus,    
Entity Address, State or Province OH    
Entity Address, Postal Zip Code 43287    
City Area Code 614    
Local Phone Number 480-2265    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 15,337,338,365
Entity Common Stock, Shares Outstanding   1,448,345,863  
Documents Incorporated by Reference
Part III of this Form 10-K incorporates by reference certain information from the registrant’s definitive Proxy Statement for the 2024 Annual Shareholders’ Meeting.
    
Entity Central Index Key 0000049196    
Document Transition Report false    
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Depositary Shares (each representing a 1/40th interest in a share of 6.250% Series D Non-Cumulative, perpetual preferred stock)      
Entity Information [Line Items]      
Title of 12(b) Security Depositary Shares (each representing a 1/40th interest in a share of 4.500% Series H Non-Cumulative, perpetual preferred stock)    
Trading Symbol HBANP    
Security Exchange Name NASDAQ    
Depositary Shares (each representing a 1/1000th interest in a share of 5.70% Series I Non-Cumulative, perpetual preferred stock)      
Entity Information [Line Items]      
Title of 12(b) Security Depositary Shares (each representing a 1/1000th interest in a share of 5.70% Series I Non-Cumulative, perpetual preferred stock)    
Trading Symbol HBANM    
Security Exchange Name NASDAQ    
Depositary Shares (each representing a 1/40th interest in a share of 6.875% Series J Non-Cumulative, perpetual preferred stock)      
Entity Information [Line Items]      
Title of 12(b) Security Depositary Shares (each representing a 1/40th interest in a share of 6.875% Series J Non-Cumulative, perpetual preferred stock)    
Trading Symbol HBANL    
Security Exchange Name NASDAQ    
Common Stock—Par Value $0.01 per Share      
Entity Information [Line Items]      
Title of 12(b) Security Common Stock—Par Value $0.01 per Share    
Trading Symbol HBAN    
Security Exchange Name NASDAQ