ACCOUNTING POLICIES - Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Recently Issued Accounting Pronouncements
Payment for contingent consideration liability, financing activities	$ 40
Other Assets | Adjustment for Reclassifying Issuance Costs Other Assets to Long Term Debt
Recently Issued Accounting Pronouncements
Debt issuance costs, net		$ (15)	$ (15)
Other Assets | Adjustment for Reclassifying Issuance costs from Other Assets to Notes Payable
Recently Issued Accounting Pronouncements
Debt issuance costs, net		$ (1)