Name:	bmy_AllianceRevenue
Namespace Prefix:	bmy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

This element represents the number of years in the collaboration period.

No definition available.

Name:	bmy_NumberOfYearsInCollaborationPeriod
Namespace Prefix:	bmy_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

The amount of upfront, licensing and milestone payments received by the Company during the period. Upfront and contingent milestones received are amortized over the shorter of the contractual term or estimated life of the product.

No definition available.

Name:	bmy_UpfrontLicensingAndMilestonePaymentsReceived
Namespace Prefix:	bmy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

This element represents the amount of an upfront option to be received from a collaboration partner if the option to purchase the remaining assets at the end of the collaboration is exercised. The fair value of the option is recorded as a liability. Changes in the liability are recognized in other (income)/expense.

No definition available.

Name:	bmy_UpfrontOptionToBeReceived
Namespace Prefix:	bmy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

This element represents the portion of an upfront payment allocated to license and other rights transferred to a collaboration partner. This amount was recognized as alliance revenue throughout the term of the collaboration.

No definition available.

Name:	bmy_UpfrontPaymentAllocatedToLicenseAndOtherRightsTransferredToCollaborationPartner
Namespace Prefix:	bmy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5