XML 12 R1.htm IDEA: XBRL DOCUMENT v3.24.0.1
Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Feb. 16, 2024
Jun. 30, 2023
Document 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    
Document Transition Report false    
Entity File Number 001-07436    
Entity Registrant Name HSBC USA Inc.    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 13-2764867    
Entity Address, Address Line One 452 Fifth Avenue    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10018    
City Area Code 212    
Local Phone Number 525-5000    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   714  
Documents Incorporated by Reference
DOCUMENTS INCORPORATED BY REFERENCE
None.
    
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000083246    
Entity Public Float     $ 0
$100,000,000 Zero Coupon Callable Accreting Notes due January 15, 2043      
Document Information [Line Items]      
Title of 12(b) Security $100,000,000 Zero Coupon Callable Accreting Notes due January 15, 2043    
Trading Symbol HUSI/43    
Security Exchange Name NYSE    
$50,000,000 Zero Coupon Callable Accreting Notes due January 29, 2043      
Document Information [Line Items]      
Title of 12(b) Security $50,000,000 Zero Coupon Callable Accreting Notes due January 29, 2043    
Trading Symbol HUSI/43A    
Security Exchange Name NYSE