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Other Non-Current Assets - Summary of Other Non-current Assets (Detail) - EUR (€) € in Millions | Dec. 31, 2017 | Dec. 31, 2016
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Miscellaneous non-current assets [Abstract] |  |
Interest in net assets of joint ventures | € 32 | € 36
Interest in net assets of associates | 44 | 51
Long-term trade and other receivables | 265 | 306
Operating lease prepayments for land | 116 | 115
Fair value of biological assets | 17 | 51
Other non-current assets | 83 | 159
Total other non-current assets | € 557 | € 718

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