Entity Tax Identification Number Entity Tax Identification Number Document and Entity Information [Abstract] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity File Number Entity File Number Title of 12(b) Security Title of 12(b) Security Local Phone Number Local Phone Number Class of Stock [Domain] Class of Stock [Domain] Soliciting Material Soliciting Material Entity Address, Address Line One Entity Address, Address Line One Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Entity Address, State or Province Entity Address, State or Province Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Written Communications Written Communications Trading Symbol Trading Symbol 3.363% Notes due 2033 3.363% Notes due 2033 [Member] 3.363% Notes due 2033 Entity Addresses, Address Type [Axis] Entity Addresses, Address Type [Axis] 2.973% Notes due 2030 2.973% Notes due 2030 [Member] 2.973% Notes due 2030 City Area Code City Area Code Address Type [Domain] Address Type [Domain] Document Information [Table] Document Information [Table] 3.857% Notes due 2038 3.857% Notes due 2038 [Member] 3.857% Notes due 2038 Document Period End Date Document Period End Date 4.289% Notes due 2045 4.289% Notes due 2045 [Member] 4.289% Notes due 2045 Common Stock $0.10 Par Value [Member] Common Stock $0.10 Par Value [Member] CommonStock010ParValueMember Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Address, City or Town Entity Address, City or Town Amendment Flag Amendment Flag Security Exchange Name Security Exchange Name 1.750% Notes due 2035 [Member] 1.750% Notes due 2035 [Member] One750NotesDue2035Member 4.581% Notes due 2055 4.581% Notes due 2055 [Member] 4.581% Notes due 2055 Document Information [Line Items] Document Information [Line Items] Document Type Document Type Class of Stock [Axis] Class of Stock [Axis] Pre-commencement Tender Offer Pre-commencement Tender Offer Entity Central Index Key Entity Central Index Key Entity Emerging Growth Company Entity Emerging Growth Company Celgene Contingent Value Rights [Member] Celgene Contingent Value Rights [Member] Celgene Contingent Value Rights [Member]