Disclosure Of Investments Accounted For Using Equity Method [line items]

No definition available.

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- Definition

The gain (loss) recognised as result of remeasuring to fair value the equity interest in the acquiree held by the acquirer before the business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2019-01-01
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- Definition

The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2019-01-01
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- Definition

The proportion of ownership interest in a joint venture attributable to the entity. [Refer: Joint ventures [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2019-01-01
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-Name IAS
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The entity's share of the profit (loss) of joint ventures accounted for using the equity method. [Refer: Investments accounted for using equity method; Joint ventures [member]; Profit (loss)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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INVESTMENTS ACCOUNTED FOR UNDER THE EQUITY METHOD - Additional Information (Details) - EUR (€) € in Millions		12 Months Ended
	Jan. 09, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 10, 2019
Disclosure of investments accounted for using equity method [line items]
Gain (loss) recognised as result of remeasuring to fair value equity interest in acquiree held by acquirer before business combination		€ 2
Gain on remeasurement of previously held equity interest in joint venture		€ 2	€ (33)	€ (29)
Constellium-UACJ ABS LLC
Disclosure of investments accounted for using equity method [line items]
Proportion of ownership interest in joint venture	51.00%	51.00%
Gain on remeasurement of previously held equity interest in joint venture		€ 0	€ (33)
Constellium-UACJ ABS LLC
Disclosure of investments accounted for using equity method [line items]
Percentage of voting equity interest acquired					49.00%