v3.25.4
Document and Entity Information - USD ($)
$ / shares in Units, $ in Billions
 12 Months Ended
Dec. 31, 2025
Jan. 30, 2026
Jun. 30, 2025
Dec. 31, 2024
Document And Enity Information [Abstract]        
Document Type 10-K      
Document Period End Date Dec. 31, 2025      
Document Annual Report true      
Document Transition Report false      
Entity File Number 001-03492      
Entity Registrant Name HALLIBURTON COMPANY      
Entity Incorporation, State or Country Code DE      
Entity Tax Identification Number 75-2677995      
Entity Address, Address Line One 3000 North Sam Houston Parkway East,      
Entity Address, City or Town Houston,      
Entity Address, State or Province TX      
Entity Address, Postal Zip Code 77032      
City Area Code 281      
Local Phone Number 871-2699      
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     $ 15.2  
Entity Common Stock, Shares Outstanding   837,548,345    
Common stock, par value (in dollars per share) $ 2.50     $ 2.50
Current Fiscal Year End Date --12-31      
Document Fiscal Year Focus 2025      
Document Fiscal Period Focus FY      
Amendment Flag false      
Entity Central Index Key 0000045012      
Entity Information [Line Items]        
Document Transition Report false      
New York Stock Exchange, Inc.        
Entity Information [Line Items]        
Title of 12(b) Security Common Stock, par value $2.50 per share      
Trading Symbol HAL      
Security Exchange Name NYSE      
NYSE Texas, INC.        
Entity Information [Line Items]        
Title of 12(b) Security Common Stock, par value $2.50 per share      
Trading Symbol HAL      
Security Exchange Name CHX