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FINANCIAL RISK MANAGEMENT - Effect of Foreign Currency Derivatives Impacts and Commercial Transactions Exposures (Details) - EUR (€) € in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |
Realized (losses) / gains on foreign currency derivatives - net | € (2) | € (3) | € (5) | € (3)
Unrealized gains on foreign currency derivatives - net | 3 | 0 | 11 | (2)
Losses reclassified from OCI as a result of hedge accounting discontinuation | 0 | 5 | 0 | 5
Derivatives that do not qualify for hedge accounting | At fair value through profit and loss |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |
Realized (losses) / gains on foreign currency derivatives - net | (2) | 0 | (4) | 2
Unrealized gains on foreign currency derivatives - net | 3 | (1) | 11 | (2)
Derivatives that qualify for hedge accounting | At fair value through profit and loss |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |
Realized (losses) / gains on foreign currency derivatives - net | 0 | (3) | (1) | (5)
Unrealized gains on foreign currency derivatives - net | 0 | 1 | 0 | 0
Losses reclassified from OCI as result of hedge accounting discontinuation | 0 | (5) | 0 | (5)
Losses reclassified from OCI as a result of hedge accounting discontinuation |  |  | 5 |
Derivatives that qualify for hedge accounting | At fair value through OCI |  |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |  |
Unrealized gains on foreign currency derivatives - net | 2 | 2 | (9) | (6)
Gains / (losses) reclassified from cash flow hedge reserve to the Interim Income Statement | € 1 | € 3 | € 1 | € 6

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- Definition Unrealized gains (losses) on foreign currency derivatives - net. + References No definition available. + Details
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