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Trade Receivables and Other - Summary of Trade Receivables and Other (Detail) - EUR (€) € in Millions | Jun. 30, 2018 | Jan. 01, 2018 | Dec. 31, 2017
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Disclosure of trade and other receivables [line items] |  |  |
Non-current trade receivables | € 0 |  | € 0
Finance lease receivables | 3 |  | 6
Other taxes | 0 |  | 0
Unbilled tooling costs |  |  | 28
Contract assets | 36 | € 32 |
Prepaid expenses | 1 |  | 5
Restricted cash |  |  | 1
Other | 8 |  | 8
Total Other receivables | 48 |  | 48
Total Trade receivables and Other | 48 |  | 48
Current trade receivables | 526 |  | 306
Finance lease receivables | 6 |  | 6
Current income tax receivables | 53 |  | 58
Other taxes | 41 |  | 30
Unbilled tooling costs | 0 |  | 0
Contract assets | 1 | € 1 |
Prepaid expenses | 12 |  | 8
Restricted cash | 0 |  | 0
Other | 17 |  | 11
Total Other receivables | 130 |  | 113
Total Trade receivables and Other | 656 |  | 419
Gross value [member] |  |  |
Disclosure of trade and other receivables [line items] |  |  |
Non-current trade receivables | 0 |  | 0
Current trade receivables | 529 |  | 309
Impairment [member] |  |  |
Disclosure of trade and other receivables [line items] |  |  |
Non-current trade receivables | 0 |  | 0
Current trade receivables | € (3) |  | € (3)

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- Definition The amount of non-current finance lease receivables. [Refer: Finance lease receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard -URIDate 2017-03-09 + Details
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