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GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets, Cost | $ 1,747 |  | $ 1,747 |  | $ 1,653
Intangible assets, Accumulated Amortization | (579) |  | (579) |  | (534)
Total intangible assets, Net | 1,168 |  | 1,168 |  | 1,119
Amortization expense | 22 | $ 19 | 66 | $ 54 |
Remainder of 2018 | 23 |  | 23 |  |
Future Amortization Expense, 2019 | 90 |  | 90 |  |
Future Amortization Expense, 2020 | 89 |  | 89 |  |
Future Amortization Expense, 2021 | 83 |  | 83 |  |
Future Amortization Expense, 2022 | 79 |  | 79 |  |
Future Amortization Expense, 2023 | 79 |  | 79 |  |
Future Amortization Expense, Thereafter | 489 |  | 489 |  |
Future Amortization Expense, Total | 932 |  | 932 |  |
Intangible Assets Not Subject to Amortization - Tradenames [Member] |  |  |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets, Cost | 235 |  | 235 |  | 235
Total intangible assets, Net | 235 |  | 235 |  | 235
Intangible Assets Not Subject to Amortization - Other [Member] |  |  |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets, Cost | 1 |  | 1 |  | 1
Total intangible assets, Net | 1 |  | $ 1 |  | 1
Customer-related intangibles [Member] |  |  |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Weighted Average Amortization Period |  |  | 18 years |  |
Intangible assets, Cost | 1,309 |  | $ 1,309 |  | 1,210
Intangible assets, Accumulated Amortization | (458) |  | (458) |  | (404)
Total intangible assets, Net | 851 |  | $ 851 |  | 806
Noncompete Agreements [Member] |  |  |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Weighted Average Amortization Period |  |  | 8 years |  |
Intangible assets, Cost | 3 |  | $ 3 |  | 7
Intangible assets, Accumulated Amortization | (2) |  | (2) |  | (5)
Total intangible assets, Net | 1 |  | $ 1 |  | 2
Technology [Member] |  |  |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Weighted Average Amortization Period |  |  | 16 years |  |
Intangible assets, Cost | 107 |  | $ 107 |  | 95
Intangible assets, Accumulated Amortization | (48) |  | (48) |  | (45)
Total intangible assets, Net | 59 |  | $ 59 |  | 50
Other [Member] |  |  |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Weighted Average Amortization Period |  |  | 10 years |  |
Intangible assets, Cost | 92 |  | $ 92 |  | 105
Intangible assets, Accumulated Amortization | (71) |  | (71) |  | (80)
Total intangible assets, Net | 21 |  | $ 21 |  | 25
Total Amortizing Intangible Assets [Member] |  |  |  |  |
Finite-Lived and Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Weighted Average Amortization Period |  |  | 17 years |  |
Intangible assets, Cost | 1,511 |  | $ 1,511 |  | 1,417
Intangible assets, Accumulated Amortization | (579) |  | (579) |  | (534)
Total intangible assets, Net | $ 932 |  | $ 932 |  | $ 883

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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