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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 | 3 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($) MMBTU bbl | Dec. 31, 2020 EUR (€) | Dec. 31, 2019 USD ($) bbl MMBTU | Dec. 31, 2019 EUR (€) | Dec. 31, 2020 EUR (€) MMBTU bbl | Sep. 30, 2020 EUR (€) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 EUR (€) bbl MMBTU
Foreign Exchange Contract [Member] | Euro Member Countries, Euro | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  | € 521 |  |  |  | € 630
Commodity Contract [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount | bbl |  | 0 |  | 1 |  | 0 |  |  |  | 1
Energy Related Derivative [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount | MMBTU |  | 17 |  | 27 |  | 17 |  |  |  | 27
Interest Rate Contract [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  | $ 75 |  |  |  |  |  |  |  |
Interest Rate Contract [Member] | Fair Value Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  | 75 |  | $ 75 |  |  |  |  |  |
Cross Currency Swaps[Member] | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  | € 853 |  |  |  | € 851
Notes Due January 2021 [Member] | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount | € |  |  |  |  |  |  | € 150 |  |  |
Gain (Loss) on Derivative Used in Net Investment Hedge, after Tax | $ 3 |  |  |  |  |  |  |  |  |
Notes Due January 2021 [Member] | Cross Currency Interest Rate Contract [Member] | United States of America, Dollars | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount | 180 |  |  |  |  |  |  |  |  |
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 |  | $ 1,500 | € 1,245 | $ 1,400 | € 1,243 |  |  |  |  |
4.5% Notes Due Dec 2028 [Member] | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount | € |  |  |  |  |  |  | € 152 |  |  |
4.5% Notes Due Dec 2028 [Member] | Cross Currency Interest Rate Contract [Member] | United States of America, Dollars | Net Investment Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Principal amount | 180 |  |  |  |  |  |  |  |  |
Expected Debt Issuance Aug 2022 | Interest Rate Contract [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | $ 25 |  |  |  |  |  |  | $ 25 | $ 25 |

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