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Financial liabilities (Details 5) - EUR (€) € in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Disclosure Of Information on net borrowings [Line Items] |  |
Financial liabilities, at fair value |  | € 23,764
Ordinary Bonds [Member] |  |
Disclosure Of Information on net borrowings [Line Items] |  |
Financial liabilities, at fair value |  | 19,219
Convertible Bonds [Member] |  |
Disclosure Of Information on net borrowings [Line Items] |  |
Financial liabilities, at fair value |  | 410
Banks [Member] |  |
Disclosure Of Information on net borrowings [Line Items] |  |
Financial liabilities, at fair value |  | 4,021
Other financial institutions [Member] |  |
Disclosure Of Information on net borrowings [Line Items] |  |
Financial liabilities, at fair value |  | € 114

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- Definition The fair value of financial liabilities. [Refer: At fair value [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_25&doctype=Standard -URIDate 2018-03-16 + Details
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- Details
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