LEGAL PROCEEDINGS AND CONTINGENCIES (Details) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2010 USD ($)	Aug. 31, 2010
Legal Proceedings And Contingencies [Line Items]
Total revenues	$ 4,163	$ 3,889	$ 8,204	$ 7,700
Baraclude [Member]
Legal Proceedings And Contingencies [Line Items]
Total revenues	$ 343	$ 369	$ 683	$ 775
Baraclude Intellectual Property Litigation [Member]
Legal Proceedings And Contingencies [Line Items]
Number of patents challenged							1
Baraclude Intellectual Property Litigation [Member] | Baraclude [Member]
Legal Proceedings And Contingencies [Line Items]
Total revenues					$ 215
Baraclude Intellectual Property Litigation [Member] | Baraclude [Member] | South Korea [Member]
Legal Proceedings And Contingencies [Line Items]
Total revenues					$ 158
AWP Litigation [Member]
Legal Proceedings And Contingencies [Line Items]
Number of lawsuits	2		2
Loss contingency, Estimate of possible loss						$ 28
Qui Tam Litigation [Member]
Legal Proceedings And Contingencies [Line Items]
Number of sales representatives	3		3
Plavix Product Liability Litigation [Member]
Legal Proceedings And Contingencies [Line Items]
Number of current plaintiffs	5,200		5,200
Reglan Product Liability [Member]
Legal Proceedings And Contingencies [Line Items]
Number of current plaintiffs	3,000		3,000
Byetta Product Liability Litigation [Member]
Legal Proceedings And Contingencies [Line Items]
Number of lawsuits	480		480
Number of plaintiffs settled	510		510
Number of current plaintiffs	2,300		2,300
Environmental Proceedings Cercla Matters [Member]
Legal Proceedings And Contingencies [Line Items]
Loss contingency, Estimate of possible loss	$ 61		$ 61
Environmental Proceedings North Brunswick [Member]
Legal Proceedings And Contingencies [Line Items]
Number Of Interim Payments			2
Litigation settlement, Gross			$ 4