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OPERATING SEGMENT INFORMATION - Segment Adjusted EBITDA and reconciliation of Adjusted EBITDA to Net Income (Details) - EUR (€) € in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Disclosure of segment adjusted EBITDA and reconciliation of adjusted EBITDA to net income [line items] |  |  |  |  |
Adjusted EBITDA | € 170 | € 81 | € 291 | € 228 |
Metal price lag | 54 | (25) | 85 | (40) |
Start-up and development costs | 0 | (2) | 0 | (4) |
Share based compensation costs | (3) | (5) | (7) | (8) |
Losses on pension plan amendments | (2) | (2) | (2) | (2) |
Depreciation and amortization | (65) | (66) | (128) | (132) |
Impairment of assets | 0 | (5) | 0 | (5) |
Restructuring costs | (2) | (11) | (3) | (11) |
Unrealized exchange (losses) / gains from the remeasurement of monetary assets and liabilities – net | (1) | 1 | 1 | (1) |
Other | 0 | (10) | 0 | (10) |
Income / (loss) from operations | 167 | (1) | 281 | 5 |
Finance costs - net | (37) | (42) | (92) | (87) |
Income / (loss) before tax | 130 | (43) | 189 | (82) |
Income tax (expense) / benefit | (22) | 11 | (33) | 19 |
Net income / (loss) | 108 | (32) | 156 | (63) | € (17)
Losses reclassified from OCI as a result of hedge accounting discontinuation | 0 | 5 | 0 | 5 |
Unrealized gains / (losses) on derivatives | 16 | 43 | 44 | (10) |
COVID-19 |  |  |  |  |
Disclosure of segment adjusted EBITDA and reconciliation of adjusted EBITDA to net income [line items] |  |  |  |  |
Procurement penalties and termination fees |  |  |  | (5) |
Losses reclassified from OCI as a result of hedge accounting discontinuation |  |  |  | 5 |
P&ARP |  |  |  |  |
Disclosure of segment adjusted EBITDA and reconciliation of adjusted EBITDA to net income [line items] |  |  |  |  |
Adjusted EBITDA | 94 | 58 | 162 | 124 |
A&T |  |  |  |  |
Disclosure of segment adjusted EBITDA and reconciliation of adjusted EBITDA to net income [line items] |  |  |  |  |
Adjusted EBITDA | 42 | 31 | 61 | 83 |
AS&I |  |  |  |  |
Disclosure of segment adjusted EBITDA and reconciliation of adjusted EBITDA to net income [line items] |  |  |  |  |
Adjusted EBITDA | 41 | (1) | 79 | 33 |
H&C |  |  |  |  |
Disclosure of segment adjusted EBITDA and reconciliation of adjusted EBITDA to net income [line items] |  |  |  |  |
Adjusted EBITDA | € (7) | € (7) | € (11) | € (12) |

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