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Other liabilities (Details) - EUR (€) € in Millions	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Other Liabilities Explanatory [Abstract]
Fair value of derivatives financial instruments,Current	€ 1,445	€ 1,011
Fair value of derivatives financial instruments,Non-current	40	91
Liabilities from contracts with customers,Current	1,108
Liabilities from contracts with customers,Non-current	518
Cautionary deposits,Non-current	268	255
Other liabilities,Current	3,980	1,515
Other liabilities,Non-current	1,502	1,479
Current Other Liabilities	3,980	1,515
Non Current Other Liabilities	€ 1,502	€ 1,479

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- Definition

Current Other Liabilities

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No definition available.

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Disclosure Of Other Current Liabilities Explanatory [Abstract]

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- Definition

Non Current Other Liabilities

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No definition available.

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X

- Definition

The amount of current contract liabilities. [Refer: Contract liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2018-01-01
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- Definition

The amount of current derivative financial liabilities. [Refer: Derivative financial liabilities]

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- Definition

The amount of non-current contract liabilities. [Refer: Contract liabilities]

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- Definition

The amount of non-current deposits from customers. [Refer: Deposits from customers]

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The amount of non-current derivative financial liabilities. [Refer: Derivative financial liabilities]

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- Definition

The amount of current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Current liabilities]

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The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities]

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