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Assets held for sale and liabilities directly associated with assets held for sale (Details Textual) - EUR (€) € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017
Disclosure Of Discontinued Operations Explanatory [Line Items] |  |
Proportion of ownership interest in subsidiary | 80.00% |
Liabilities included in disposal groups classified as held for sale | € 59 | € 87
Tigaz Zrt [Member] |  |
Disclosure Of Discontinued Operations Explanatory [Line Items] |  |
Percentage of Ownership Interest Divested | 98.99% |
Tigaz dso [Member] |  |
Disclosure Of Discontinued Operations Explanatory [Line Items] |  |
Proportion of ownership interest in subsidiary | (100.00%) |
Current Assets Or Disposal Group Classified As Held For Sale | € 81 |
Current Lliabilities Included In Disposal Groups Classified As Held For Sale | 33 |
Tigaz dso [Member] | Gross carrying amount [member] |  |
Disclosure Of Discontinued Operations Explanatory [Line Items] |  |
Non-current assets or disposal groups classified as held for sale | 274 |
Liabilities included in disposal groups classified as held for sale | 59 |
Met holding [Member] |  |
Disclosure Of Discontinued Operations Explanatory [Line Items] |  |
Non-current assets or disposal groups classified as held for sale | 295 |
Liabilities included in disposal groups classified as held for sale | € 59 |
Lasmo sanga sanga [Member] |  |
Disclosure Of Discontinued Operations Explanatory [Line Items] |  |
Proportion of ownership interest in subsidiary | 26.25% |
Unimar Llc [Member] |  |
Disclosure Of Discontinued Operations Explanatory [Line Items] |  |
Proportion of ownership interest in subsidiary | 50.00% |
Non-current assets or disposal groups classified as held for sale | € 21 |

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- Definition The amount of liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2018-01-01 -Paragraph 38 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=5&date=2018-03-01&anchor=para_38&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 54 -Subparagraph p -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_54_p&doctype=Standard -URIDate 2018-03-16 + Details
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