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DERIVATIVE AND NON-DERIVATIVE FINANCIAL INSTRUMENTS Part 1 (Details) - Designated as Hedging Instrument [Member] € in Millions, bbl in Millions, MMBTU in Millions, $ in Millions | 6 Months Ended | 12 Months Ended |  |  |
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Jun. 30, 2018 USD ($) bbl MMBTU | Jun. 30, 2018 EUR (€) | Dec. 31, 2017 USD ($) bbl MMBTU | Dec. 31, 2017 EUR (€) | Jun. 30, 2018 EUR (€) bbl MMBTU | Jan. 31, 2018 USD ($) | Jan. 31, 2018 EUR (€) | Dec. 31, 2017 EUR (€) bbl MMBTU
Foreign Exchange Contract [Member] | Euro Member Countries, Euro | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  | € 419 |  |  | € 525
Commodity Contract [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount | bbl | 8 |  | 7 |  | 8 |  |  | 7
Energy Related Derivative [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount | MMBTU | 25 |  | 23 |  | 25 |  |  | 23
Interest Rate Contract [Member] | Fair Value Hedging [Member] |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Derivative, Notional Amount | $ | $ 75 |  | $ 75 |  |  |  |  |
Notes Due January 2021 and Notes Due August 2022 [Member] | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Net Investment Hedging [Member] |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  | € 416 |  |  | € 0
Notes Due January 2021 [Member] | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Net Investment Hedging [Member] |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 180 | € 150 |
Notes Due August 2022 [Member] [Member] | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Net Investment Hedging [Member] |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 320 | € 266 |
1.50% Notes Due 2023 and 1.875% Notes Due 2026 [Member] | Euro Member Countries, Euro | Net Investment Hedging [Member] |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |
Notional Amount of Nonderivative Instruments | $ 1,400 | € 1,241 | $ 1,500 | € 1,240 |  |  |  |

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