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Short-term debt (Details 1) - EUR (€) € in Millions | Dec. 31, 2017 | Dec. 31, 2016
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DisclosureOfShorttermDebtLineItems [Line Items] |  |
Short-term Debt | € 2,242 | € 3,396
Euro [Member] |  |
DisclosureOfShorttermDebtLineItems [Line Items] |  |
Short-term Debt | 904 | 1,405
U.S. dollar [Member] |  |
DisclosureOfShorttermDebtLineItems [Line Items] |  |
Short-term Debt | 1,329 | 1,982
Other currencies [Member] |  |
DisclosureOfShorttermDebtLineItems [Line Items] |  |
Short-term Debt | € 9 | € 9

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- Definition The amount of current borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard -URIDate 2017-03-09 + Details
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Balance Type: | credit
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- Details
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- Details
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Period Type: |

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- Details
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