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FINANCIAL INSTRUMENTS - Narrative (Details) $ in Millions |  | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 18, 2021 EUR (€) | Jun. 30, 2021 USD ($) | Jun. 30, 2021 EUR (€) | Jun. 04, 2021 | May 19, 2021 EUR (€) | Oct. 01, 2020 USD ($)
Derivative [Line Items] |  |  |  |  |  |
Deferred loss | $ |  | $ 50 |  |  |  |
Senior Notes |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Debt instrument, face amount | $ |  |  |  |  |  | $ 800
1.800% Senior notes due 11/07/22 (€500 million par value) | Senior Notes |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Repayment of debt | € 500,000,000 |  |  |  |  |
Debt instrument stated interest rate | 1.80% |  | 1.80% |  | 1.80% |
Debt instrument, face amount |  |  | € 500,000,000 |  | € 500,000,000 |
1.000% Senior Notes due 05/19/31 (€1,000 million par value) | Senior Notes |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Debt instrument stated interest rate |  |  |  | 1.00% | 1.00% |
Debt instrument, face amount |  |  | € 1,000,000,000 |  | € 1,000,000,000.0 |

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