BUSINESS ACQUISITION (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended
	Feb. 29, 2016	Mar. 31, 2016
Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets, useful life		18 years
Clinical Laboratory Partners, LLC (CLP) [Member]
Business Acquisition [Line Items]
Cash paid for acquisition	$ 135
Goodwill, expected tax deductible amount	91
Clinical Laboratory Partners, LLC (CLP) [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets	$ 43
Intangible assets, useful life	15 years