SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Change in Accounting Estimate [Line Items]
Operating income	$ 257	$ 228
Net income	114	$ 70
Property, plant and Equipment, Service Life [Member]
Change in Accounting Estimate [Line Items]
Operating income	10
Net income	$ 6
Earnings per share, basic and diluted (in dollars per share)	$ 0.04
Property, plant and Equipment, Service Life [Member] | Scenario, Forecast [Member]
Change in Accounting Estimate [Line Items]
Operating income			$ 36
Net income			$ 22
Earnings per share, basic and diluted (in dollars per share)			$ 0.16
Computer Software [Member]
Change in Accounting Estimate [Line Items]
Useful life	5 years			3 years
Minimum [Member] | Laboratory Equipment [Member]
Change in Accounting Estimate [Line Items]
Useful life	7 years			5 years
Minimum [Member] | Furniture and Fixtures [Member]
Change in Accounting Estimate [Line Items]
Useful life	5 years			3 years
Maximum [Member] | Laboratory Equipment [Member]
Change in Accounting Estimate [Line Items]
Useful life	10 years			7 years
Maximum [Member] | Furniture and Fixtures [Member]
Change in Accounting Estimate [Line Items]
Useful life	12 years			7 years