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REVENUE - Disaggregation of Revenue by Product Line (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of products and services [line items] |  |  |
Total Revenue by product line | € 4,883 | € 5,907 | € 5,686
Packaging rolled products |  |  |
Disclosure of products and services [line items] |  |  |
Total Revenue by product line | 1,960 | 2,172 | 2,245
Automotive rolled products |  |  |
Disclosure of products and services [line items] |  |  |
Total Revenue by product line | 663 | 816 | 636
Specialty and other thin-rolled products |  |  |
Disclosure of products and services [line items] |  |  |
Total Revenue by product line | 102 | 151 | 169
Aerospace rolled products |  |  |
Disclosure of products and services [line items] |  |  |
Total Revenue by product line | 560 | 863 | 773
Transportation, industry, defense and other rolled products |  |  |
Disclosure of products and services [line items] |  |  |
Total Revenue by product line | 442 | 557 | 566
Automotive extruded products |  |  |
Disclosure of products and services [line items] |  |  |
Total Revenue by product line | 665 | 797 | 714
Other extruded products |  |  |
Disclosure of products and services [line items] |  |  |
Total Revenue by product line | 491 | 551 | 573
Other |  |  |
Disclosure of products and services [line items] |  |  |
Total Revenue by product line | € 0 | € 0 | € 10

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2020-01-01 -Paragraph 113 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&anchor=para_113_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2020-01-01 -Paragraph 114 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&anchor=para_114&doctype=Standard -URIDate 2020-01-01 + Details
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- Details
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- Details
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