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v3.19.1

Net Finance Cost - Summary of Net Finance Costs (Parenthetical) (Detail) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Disclosure Of Detailed Information About Finance Income Expense [abstract] |  |
Unwinding of discount | € (15) | € (26)
Provision for interest on indirect tax | € 38 | € 65

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- Definition Disclosure of detailed information about finance income (expense). + References No definition available. + Details
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- Definition Provision for interest on indirect tax. + References No definition available. + Details
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Balance Type: | debit
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- Definition Unwinding discount on deferred consideration. + References No definition available. + Details
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Balance Type: | debit
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