Investments in associated companies and joint ventures (Details) - EUR (€) € in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Investments in associated companies and joint ventures
Net carrying amount beginning period	€ 128	€ 116
Translation differences	4	(8)
Acquisitions through business combinations		1
Additions	2	9
Share of results	12	11	€ 18
Dividends	(1)	(1)	(1)
Net carrying amount end period	€ 145	€ 128	€ 116

No definition available.

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- Definition

The amount of dividends received.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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- Definition

The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-Subparagraph a
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-Name IFRS
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-URIDate 2018-03-16

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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-IssueDate 2018-01-01
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective on first application of IFRS 9
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-URIDate 2018-03-16

+ Details

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- Definition

The increase in investment resulting from acquisitions through business combinations.

+ References

No definition available.

+ Details

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- Definition

The increase to investment resulting from additions to investments in associates and joint ventures.

+ References

No definition available.

+ Details

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- Definition

The amount of adjustments for translation differences in associates and joint ventures.

+ References

No definition available.

+ Details

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