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Cover Page - USD ($)
 12 Months Ended
Dec. 31, 2023
Feb. 06, 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 001-01136    
Entity Registrant Name BRISTOL-MYERS SQUIBB COMPANY    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 22-0790350    
Entity Address, Address Line One Route 206 & Province Line Road    
Entity Address, City or Town Princeton    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 08543    
City Area Code 609    
Local Phone Number 252-4621    
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 Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Document Financial Statement Error Correction [Flag] false    
Entity Public Float     $ 133,498,889,520
Entity Common Stock, Shares Outstanding   2,022,193,411  
Documents Incorporated by Reference
DOCUMENTS INCORPORATED BY REFERENCE: Portions of the definitive proxy statement for the registrant’s Annual Meeting of Shareholders to be filed within 120 days after the conclusion of the registrant's fiscal year ended December 31, 2023 with the U.S. Securities and Exchange Commission pursuant to Regulation 14A of the Securities Exchange Act of 1934, as amended, are incorporated by reference into Part III of this Annual Report on Form 10-K to the extent described therein.
    
Entity Central Index Key 0000014272    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Small Business false    
Common Stock, $0.10 Par Value      
Document Information [Line Items]      
Title of 12(b) Security Common Stock, $0.10 Par Value    
Trading Symbol BMY    
Security Exchange Name NYSE    
1.000% Notes due 2025      
Document Information [Line Items]      
Title of 12(b) Security 1.000% Notes due 2025    
Trading Symbol BMY25    
Security Exchange Name NYSE    
1.750% Notes due 2035      
Document Information [Line Items]      
Title of 12(b) Security 1.750% Notes due 2035    
Trading Symbol BMY35    
Security Exchange Name NYSE    
Celgene Contingent Value Rights      
Document Information [Line Items]      
Title of 12(b) Security Celgene Contingent Value Rights    
Trading Symbol CELG RT    
Security Exchange Name NYSE