Total Equity - Treasury Shares (Details) € in Millions, shares in Millions	12 Months Ended
Dec. 31, 2017 EUR (€)	Dec. 31, 2017 EUR (€) shares
Total Equity
Maximum authorized pro rata acquisition of treasury shares	€ 120	€ 120
Maximum percentage of issued share capital that can be held by the entity		10.00%
Number of shares bought back \| shares		5
Total amount of shares bought back	€ 500	€ 500

No definition available.

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- Definition

The decrease in equity resulting from the purchase of treasury shares. [Refer: Treasury shares]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 106
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_106_d&doctype=Standard
-URIDate 2017-03-09

+ Details

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- Definition

The maximum authorized pro rata amount of treasury stock that can be acquired.

+ References

No definition available.

+ Details

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- Definition

The maximum percentage of issued share capital that can be held by the entity.

+ References

No definition available.

+ Details

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- Definition

The number of shares that have been repurchased during the period and are being held in treasury.

+ References

No definition available.

+ Details

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