XML 10 R2.htm IDEA: XBRL DOCUMENT
v3.20.2

Document and Entity Information Document and Entity Information | 6 Months Ended
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Jun. 30, 2020
Document and entity information [abstract] |
Document Type | 6-K
Amendment Flag | false
Document Period End Date | Jun. 30, 2020
Document Fiscal Year Focus | 2020
Document Fiscal Period Focus | Q2
Entity Registrant Name | Constellium SE
Entity Central Index Key | 0001563411
Current Fiscal Year End Date | --12-31

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- Definition Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY. + References No definition available. + Details
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- Definition This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. + References No definition available. + Details
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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. + References No definition available. + Details
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- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation 12B -Number 240 -Section 12 -Subsection b-2 + Details
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