Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2012	Feb. 01, 2012	Jun. 30, 2011
Document and Entity Information [Abstract]
Entity Registrant Name	BRISTOL MYERS SQUIBB CO
Entity Central Index Key	0000014272
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		1,637,354,662
Entity Public Float			$ 60,270,731,973
Document Type	10-K
Document Period End Date	Dec. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Amendment Flag	false