GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Intangible assets, Cost	$ 1,418		$ 1,377
Intangible assets, Accumulated Amortization	(410)		(393)
Amortizing intangible assets, Net	1,008		984
Amortization expense	19	$ 21
Remainder of 2016	54
Future Amortization Expense, 2017	69
Future Amortization Expense, 2018	65
Future Amortization Expense, 2019	65
Future Amortization Expense, 2020	65
Future Amortization Expense, 2021	58
Future Amortization Expense, Thereafter	396
Future Amortization Expense, Total	772
Intangible Assets Not Subject to Amortization - Tradenames [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Intangible assets, Cost	235		235
Amortizing intangible assets, Net	235		235
Intangible Assets Not Subject to Amortization - Other [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Intangible assets, Cost	1		1
Amortizing intangible assets, Net	$ 1		1
Customer-related intangibles [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Weighted Average Amortization Period	18 years
Intangible assets, Cost	$ 977		936
Intangible assets, Accumulated Amortization	(309)		(296)
Amortizing intangible assets, Net	$ 668		640
Noncompete Agreements [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Weighted Average Amortization Period	6 years
Intangible assets, Cost	$ 6		6
Intangible assets, Accumulated Amortization	(3)		(3)
Amortizing intangible assets, Net	$ 3		3
Technology [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Weighted Average Amortization Period	18 years
Intangible assets, Cost	$ 93		93
Intangible assets, Accumulated Amortization	(37)		(35)
Amortizing intangible assets, Net	$ 56		58
Other [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Weighted Average Amortization Period	9 years
Intangible assets, Cost	$ 106		106
Intangible assets, Accumulated Amortization	(61)		(59)
Amortizing intangible assets, Net	$ 45		47
Total Amortizing Intangible Assets [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Weighted Average Amortization Period	18 years
Intangible assets, Cost	$ 1,182		1,141
Intangible assets, Accumulated Amortization	(410)		(393)
Amortizing intangible assets, Net	$ 772		$ 748