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v3.10.0.1

Share-Based Compensation - Additional Information (Detail) - EUR (€) € in Millions | 6 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017
Share Based Payment Plans [line items] |  |
Total expense related to the potential ordinary shares | € 6 | € 3
2018 performance shares [member] | Bottom of range [member] |  |
Share Based Payment Plans [line items] |  |
Percentage of vesting multiplier | 0.00% |
2018 performance shares [member] | Top of range [member] |  |
Share Based Payment Plans [line items] |  |
Percentage of vesting multiplier | 200.00% |
Performance share units (PSUs) [member] |  |
Share Based Payment Plans [line items] |  |
Share based compensation, vesting period | 3 years |
Percentage of vesting multiplier | 100.00% |

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- Definition Percentage of sharebased payments vesting multiplier. + References No definition available. + Details
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- Definition Share based compensation vesting period. + References No definition available. + Details
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- Definition Share based payment plans. + References No definition available. + Details
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- Definition The amount of expense from share-based payment transactions with employees. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
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- Details
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- Details
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- Details
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- Details
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Period Type: |