ACQUISITIONS ACQUISITIONS (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014
Acquisitions [Abstract]
Acquisition payment	$ 175
Contingent and regulatory milestone payments	550
Acquisition payment net of tax	148
Deferred tax assets related to acquisition	$ 27

This element represents the upfront payment to acquire an entity.

No definition available.

Name:	bmy_Acquisitionpayment
Namespace Prefix:	bmy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	bmy_AcquisitionsAbstract
Namespace Prefix:	bmy_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents the total contingent approval milestone payments and regulatory of potential payments to alliance partner

+ References

No definition available.

+ Details

Name:	bmy_ContingentandRegulatoryMilestonePayments
Namespace Prefix:	bmy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the upfront payment to acquire an entity, net of tax, charged to research and development expense.

+ References

No definition available.

+ Details

Name:	bmy_Upfrontpaymenttoalliancepartnernetoftax
Namespace Prefix:	bmy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of deferred tax asset attributable to deductible temporary differences and carryforwards that are expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

+ Details

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant