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Subsequent Events | 12 Months Ended
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Dec. 31, 2018
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Subsequent Events | NOTE 34—SUBSEQUENT EVENTS On January 10, 2019, the acquisition of 49% of Constellium-UACJ ABS was completed as described in NOTE 33—Acquisition of Constellium Bowling Green. On February 20, 2019, the Pan-U.S. ABL Facility was amended to, among other things, (i) join Constellium Bowling Green as an additional borrower and (ii) increase the maximum commitments thereunder to $350 million.

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- Definition The entire disclosure for events after the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 10 -IssueDate 2018-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=10&date=2018-03-01&anchor=sect_Disclosure&doctype=Standard -URIDate 2018-03-16 + Details
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