XML 238 R231.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Costs (Details 8) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Costs |  |  |
Write-Off of tangible assets | € 239 | € 289 | € 678
Write-Off of intangible assets | 24 | 61 | 10
Write-Off of Tangible And Intangible Assets | € 263 | € 350 | € 688

X
- References No definition available. + Details
Name: | E_DisclosureOfOperatingExpensesAbstract
Namespace Prefix: | E_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of write-off of intangible assets. + References No definition available. + Details
Name: | E_WriteOffOfIntangibleAssets
Namespace Prefix: | E_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount recognised resulting from the write-off of tangible assets. + References No definition available. + Details
Name: | E_WriteOffOfTangibleAssets
Namespace Prefix: | E_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of write off of tangible and intangible assets. + References No definition available. + Details
Name: | E_WriteoffOfTangibleAndIntangibleAssets
Namespace Prefix: | E_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration