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GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Goodwill [Roll Forward] |  |  |
Goodwill, balance at beginning of year | $ 5,905 | $ 6,032 |
Goodwill acquired during the year | 95 | 33 | $ 383
Reclassification to assets held for sale | 0 | (160) |
Goodwill, balance at end of year | 6,000 | 5,905 | $ 6,032
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross excluding goodwill | 1,409 | 1,377 |
Accumulated amortization, intangible assets | (460) | (393) |
Total intangible assets, net | 949 | 984 |
Future amortization expense, 2017 | 69 |  |
Future amortization expense, 2018 | 65 |  |
Future amortization expense, 2019 | 64 |  |
Future amortization expense, 2020 | 64 |  |
Future amortization expense, 2021 | 57 |  |
Future amortization expense, thereafter | 394 |  |
Future amortization expense, total | 713 |  |
Intangible Assets Not Subject to Amortization - Tradenames [Member] |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |
Intangible assets, gross excluding goodwill | 235 | 235 |
Total intangible assets, net | 235 | 235 |
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 | 18 years |  |
Intangible assets, gross excluding goodwill | $ 971 | 936 |
Accumulated amortization, intangible assets | (346) | (296) |
Total intangible assets, net | $ 625 | 640 |
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 | 6 |
Accumulated amortization, intangible assets | (4) | (3) |
Total intangible assets, net | $ 2 | 3 |
Technology [Member] |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |
Weighted average amortization period | 18 years |  |
Intangible assets, gross excluding goodwill | $ 93 | 93 |
Accumulated amortization, intangible assets | (40) | (35) |
Total intangible assets, net | $ 53 | 58 |
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 | $ 103 | 106 |
Accumulated amortization, intangible assets | (70) | (59) |
Total intangible assets, net | $ 33 | 47 |
Total Amortizing Intangible Assets [Member] |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |
Weighted average amortization period | 18 years |  |
Intangible assets, gross excluding goodwill | $ 1,173 | 1,141 |
Accumulated amortization, intangible assets | (460) | (393) |
Total intangible assets, net | $ 713 | $ 748 |

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