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Earnings Per Share - Earnings Attributable to Equity Holders of Parent used to Calculate Basic and Diluted Earnings per share (Detail) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Earnings per share [abstract]
Earnings attributable to equity holders of the parent used to calculate basic and diluted earnings per share	€ (31)	€ (4)	€ (554)

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- References

No definition available.

+ Details

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- Definition

The profit (loss) attributable to ordinary equity holders of the parent equity. [Refer: Profit (loss)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2017-01-01
-Paragraph 70
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2017-03-01&anchor=para_70_a&doctype=Standard
-URIDate 2017-03-09

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