Analysis of income and expense.

No definition available.

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- Definition

Fees paid on debt redemption.

+ References

No definition available.

+ Details

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- Definition

Unamortized Debt Issuance Costs and Fees

+ References

No definition available.

+ Details

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- Definition

The weighted average of interest and other costs that an entity incurs in connection with the borrowing of funds applicable to the borrowings of the entity that are outstanding during the period, other than borrowings made specifically for the purpose of obtaining a qualifying asset. [Refer: Weighted average [member]; Borrowings]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 23
-IssueDate 2017-01-01
-Paragraph 26
-Subparagraph b
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-URIDate 2017-03-09

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- Definition

The gain (loss) arising from the difference between the carrying amount of the financial liability extinguished and the measurement of the consideration paid (equity instruments issued) to the creditor. [Refer: Carrying amount [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRIC
-Number 19
-IssueDate 2017-01-01
-Paragraph 11
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRIC&num=19&date=2017-03-01&anchor=para_11&doctype=Standard
-URIDate 2017-03-09

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- Definition

The amount of interest expense on debt instruments issued. [Refer: Interest expense; Debt instruments issued]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2017-03-09

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Finance Costs-Net - Summary of Finance Costs - Net (Parenthetical) (Detail) - EUR (€) € in Millions	1 Months Ended			12 Months Ended
	Nov. 30, 2017	Feb. 28, 2017	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Analysis of income and expense [line items]
Net loss on settlement of debt				€ (91)	€ (4)
Exit fees				€ 88
Unamortized arrangement fees					€ 2
Capitalisation rate				6.00%	7.00%	7.00%
Constellium N.V. Senior Notes [member]
Analysis of income and expense [line items]
Interest expense on debt instrument				€ 136	€ 104	€ 81
Net loss on settlement of debt	€ (78)
Muscle Shoals' Senior Notes [member]
Analysis of income and expense [line items]
Interest expense on debt instrument				7	64	64
Net loss on settlement of debt		€ (13)
Revolving Credit Facility 1 [member]
Analysis of income and expense [line items]
Interest expense on debt instrument				€ 4	€ 3	€ 4
Muscle Shoals senior unsecured PIK toggle notes [member]
Analysis of income and expense [line items]
Net loss on settlement of debt			€ (2)