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Financial assets held for trading (Details 1) - EUR (€) € in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Disclosure Of Financial Assets Held For Trading [Line Items] |  |  |
Current financial assets at fair value through profit or loss, classified as held for trading | € 6,552 | [1] | € 6,012
Euro [Member] |  |  |
Disclosure Of Financial Assets Held For Trading [Line Items] |  |  |
Current financial assets at fair value through profit or loss, classified as held for trading | 4,573 |  | 4,232
Us Dollar [Member] |  |  |
Disclosure Of Financial Assets Held For Trading [Line Items] |  |  |
Current financial assets at fair value through profit or loss, classified as held for trading | 1,614 |  | 1,025
Other [Member] |  |  |
Disclosure Of Financial Assets Held For Trading [Line Items] |  |  |
Current financial assets at fair value through profit or loss, classified as held for trading | € 365 |  | € 755
[1] | Income or expense were recognized in the profit and loss account within “Finance income (expense)”.

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- Definition The amount of current financial assets measured at fair value through profit or loss classified as held for trading. [Refer: Financial assets at fair value through profit or loss, classified as held for trading] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 8 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_8_a&doctype=Standard&book=b -URIDate 2018-03-16 + Details
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