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Revenues (Details 1) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Disclosure Of Revenue Explanatory [Abstract]
Excise taxes	€ 11,378	€ 11,913	€ 11,889
Services recharged to joint venture partners	4,702	4,441	5,609
Sales to service station managers for sales billed to holders of credit cards	1,675	1,553	1,643
Exchanges of oil sales (excluding excise taxes)	994	878	1,154
Cost of sales	€ 18,749	€ 18,785	€ 20,295

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- Definition

It represents the amount of exchanges of oil sales excluding excise taxes.

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It represents the amount of excise taxes.

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- Definition

It represents the amount of sales to service station managers for sales billed to holders of credit cards.

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No definition available.

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It represents the amount of services recharged to joint venture partners.

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The amount of costs relating to expenses directly or indirectly attributed to the goods or services sold, which may include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, unallocated production overheads and abnormal amounts of production costs of inventories.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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