ALLIANCES (AbbVie) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Alliances Statement [Line Items]
Net product sales	$ 17,702	$ 14,045	$ 11,660
Potential milestones to be paid	938	2,325
AbbVie [Member]
Alliances Statement [Line Items]
Net product sales	$ 132	$ 3
Maximum percentage of reimbursement for development costs from alliance partner	20.00%
Regulatory milestones paid through 2016	$ 140
Approval milestones paid through 2016	52
Potential milestones to be paid	120
Potential sales based milestones to be paid	$ 200
United States [Member] | AbbVie [Member]
Alliances Statement [Line Items]
Profit sharing involving only one compound - maximum	30.00%