GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Goodwill, balance at beginning of year	$ 6,032	$ 5,649
Goodwill acquired during the year	33	383
Reclassification to assets held for sale	(160)
Goodwill, balance at end of year	5,905	6,032
Intangible assets, gross excluding goodwill	1,377	1,487
Accumulated amortization, intangible assets	(393)	(416)
Total intangible assets, net	984	1,071
Future amortization expense, 2016	70
Future amortization expense, 2017	66
Future amortization expense, 2018	62
Future amortization expense, 2019	62
Future amortization expense, 2020	62
Future amortization expense, thereafter	426
Future amortization expense, total	748
Intangible Assets Not Subject to Amortization - Tradenames [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Intangible assets, gross excluding goodwill	235	244
Total intangible assets, net	235	244
Intangible Assets Not Subject to Amortization - Other [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Intangible assets, gross excluding goodwill	1	1
Total intangible assets, net	$ 1	1
Customer Relationships [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Weighted average amortization period	19 years
Intangible assets, gross excluding goodwill	$ 936	929
Accumulated amortization, intangible assets	(296)	(259)
Total intangible assets, net	$ 640	670
Non-compete Agreements [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Weighted average amortization period	6 years
Intangible assets, gross excluding goodwill	$ 6	43
Accumulated amortization, intangible assets	(3)	(37)
Total intangible assets, net	$ 3	6
Unpatented Technology [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Weighted average amortization period	16 years
Intangible assets, gross excluding goodwill	$ 93	118
Accumulated amortization, intangible assets	(35)	(38)
Total intangible assets, net	$ 58	80
Other Intangible Assets, Subject To Amortization [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Weighted average amortization period	9 years
Intangible assets, gross excluding goodwill	$ 106	152
Accumulated amortization, intangible assets	(59)	(82)
Total intangible assets, net	$ 47	70
Total Amortizing Intangible Assets [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Weighted average amortization period	17 years
Intangible assets, gross excluding goodwill	$ 1,141	1,242
Accumulated amortization, intangible assets	(393)	(416)
Total intangible assets, net	$ 748	$ 826