ALLIANCES (Valeant) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2012
Alliances Statement [Line Items]
Alliance revenues	$ 1,725	$ 2,515	$ 4,219
Divestiture gain	564	194	564
Other changes in operating assets and liabilities	(100)	(491)	(8)
Divestiture and other proceeds	$ 1,317	697	3,565
Valeant [Member]
Alliances Statement [Line Items]
Upfront, milestone and other licensing payments received				$ 79
Charge included in other (income)expense for change in fair value of option			16
Alliance revenues		(1)	44
Divestiture gain		(88)
Other changes in operating assets and liabilities			16
Divestiture and other proceeds		$ 61
Written Option Liability [Member] | Valeant [Member]
Alliances Statement [Line Items]
Fair value of option			$ 34