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Intangible assets (Details 3) - EUR (€) € in Millions	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Intangible Assets Explanatory [Line Items]
Goodwill		€ 1,204
Gas & Power [Member]
Disclosure Of Intangible Assets Explanatory [Line Items]
Goodwill		932
Exploration & Production [Member]
Disclosure Of Intangible Assets Explanatory [Line Items]
Goodwill		179
Refining & Marketing [Member]
Disclosure Of Intangible Assets Explanatory [Line Items]
Goodwill		€ 93
Other Activities [Member]
Disclosure Of Intangible Assets Explanatory [Line Items]
Goodwill	€ 1

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- Definition

Disclosure Of Intangible Assets Explanatory [Line items]

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No definition available.

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- Definition

The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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