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Trade Receivables and Other - Summary of Aging of Total Trade Receivables - Net (Detail) - EUR (€) € in Millions | Dec. 31, 2017 | Dec. 31, 2016
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Trade receivables [line items] |  |
Trade receivables-net | € 306 | € 235
Current [member] |  |
Trade receivables [line items] |  |
Trade receivables-net | 286 | 217
Past Due 1 to 30 Days [member] |  |
Trade receivables [line items] |  |
Trade receivables-net | 13 | 14
Past Due 31 to 60 Days [member] |  |
Trade receivables [line items] |  |
Trade receivables-net | 2 | 3
Past Due 61 to 90 Days [member] |  |
Trade receivables [line items] |  |
Trade receivables-net | 3 | € 1
Past Due Greater Than91 Days [member] |  |
Trade receivables [line items] |  |
Trade receivables-net | € 2 |

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- Definition The amount due from customers for goods and services sold. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 78 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_78_b&doctype=Standard -URIDate 2017-03-09 + Details
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