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Guarantees, commitments and risks (Details 9) - EUR (€) € in Millions | Dec. 31, 2017 | Dec. 31, 2016
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Trade and other receivables [Member] |  |
DisclosureOfContingentLiabilitiesExplanatoryLineItems [Line Items] |  |
Gross amount of financial assets and liabilities | € 16,952 | € 18,489
Gross amount of financial assets and liabilities subject to offsetting | 1,215 | 896
Net amount of financial assets and liabilities | 15,737 | 17,593
Other Assets Current [Member] |  |
DisclosureOfContingentLiabilitiesExplanatoryLineItems [Line Items] |  |
Gross amount of financial assets and liabilities | 2,852 | 3,872
Gross amount of financial assets and liabilities subject to offsetting | 1,279 | 1,281
Net amount of financial assets and liabilities | 1,573 | 2,591
Trade and other liabilities [Member] |  |
DisclosureOfContingentLiabilitiesExplanatoryLineItems [Line Items] |  |
Gross amount of financial assets and liabilities | 17,963 | 17,599
Gross amount of financial assets and liabilities subject to offsetting | 1,215 | 896
Net amount of financial assets and liabilities | 16,748 | 16,703
Other liabilities current [Member] |  |
DisclosureOfContingentLiabilitiesExplanatoryLineItems [Line Items] |  |
Gross amount of financial assets and liabilities | 2,794 | 3,880
Gross amount of financial assets and liabilities subject to offsetting | 1,279 | 1,281
Net amount of financial assets and liabilities | € 1,515 | € 2,599

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- Definition The gross amount of recognised financial assets that are subject either to offsetting or to an enforceable master netting arrangement or similar agreement. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 13C -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_13C_a&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of financial liabilities set off against financial assets when an entity: (a) currently has a legally enforceable right to set off the recognised amounts; and (b) intends either to settle on a net basis or to realise the asset and settle the liability simultaneously. [Refer: Financial assets; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 13C -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_13C_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The net amount of financial assets that are subject either to offsetting or to an enforceable master netting arrangement or similar agreement, presented in the statement of financial position. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 13C -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_13C_c&doctype=Standard -URIDate 2017-03-09 + Details
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