LEGAL PROCEEDINGS AND CONTINGENCIES (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) lawsuits	Dec. 31, 2018 AUD ($) lawsuits
Byetta Product Liability Litigation [Member]
Legal Proceedings And Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	500	500
Abilify Product Liability [Member]
Legal Proceedings And Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	2,000	2,000
Eliquis Product Liability [Member]
Legal Proceedings And Contingencies [Line Items]
Number of claims dismissed	200
Shareholder Derivative Litigation [Member]
Legal Proceedings And Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	3	3
Number of claims dismissed	3
Litigation settlement amount | $	$ 14.7
Securities Litigation [Member]
Legal Proceedings And Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	2	2
Cercla Matters [Member]
Legal Proceedings And Contingencies [Line Items]
Loss contingency, estimate of possible loss | $	$ 62.0
Australia, Dollars | Plavix Australia Intellectual Property [Member]
Legal Proceedings And Contingencies [Line Items]
Loss contingency, estimate of possible loss | $		$ 449
United States of America, Dollars | Plavix Australia Intellectual Property [Member]
Legal Proceedings And Contingencies [Line Items]
Loss contingency, estimate of possible loss | $	$ 316.0
UNITED STATES | Eliquis Product Liability [Member]
Legal Proceedings And Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	3	3
CANADA | Eliquis Product Liability [Member]
Legal Proceedings And Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	1	1