ASSETS HELD-FOR-SALE (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Investigational HIV business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Upfront payment to be received as a result of a divestiture	$ 350
Total contingent development and regulatory milestone payments	1,100
Total contingent sales based milestones	4,300
Investigational HIV business and Reckitt [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held-for-sale	$ 134
The Medicines Company and Valeant [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held-for-sale		$ 109