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Goodwill and Intangible Assets - Summary of Goodwill and Indefinite-life Intangible Assets Held in Significant CGUs (Detail) - EUR (€) € in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Disclosure of detailed information about intangible assets [Line Items] |  |
Goodwill | € 16,881 | € 17,624
Foods (excluding Spreads) [Member] | Europe [member] |  |
Disclosure of detailed information about intangible assets [Line Items] |  |
Goodwill | 4,500 |
Indefinite-life intangible assets | 1,600 |
Foods (excluding Spreads) [Member] | The Americas [member] |  |
Disclosure of detailed information about intangible assets [Line Items] |  |
Goodwill | 2,800 |
Indefinite-life intangible assets | 1,400 |
Foods (excluding Spreads) [Member] | Asia/AMET/RUB [member] |  |
Disclosure of detailed information about intangible assets [Line Items] |  |
Goodwill | 1,500 |
Indefinite-life intangible assets | 400 |
Personal care [member] | The Americas [member] |  |
Disclosure of detailed information about intangible assets [Line Items] |  |
Goodwill | 2,500 | 2,800
Indefinite-life intangible assets | € 1,500 | 1,700
Foods [member] | Europe [member] |  |
Disclosure of detailed information about intangible assets [Line Items] |  |
Goodwill |  | 5,800
Indefinite-life intangible assets |  | 1,600
Foods [member] | The Americas [member] |  |
Disclosure of detailed information about intangible assets [Line Items] |  |
Goodwill |  | 3,900
Indefinite-life intangible assets |  | 1,600
Foods [member] | Asia/AMET/RUB [member] |  |
Disclosure of detailed information about intangible assets [Line Items] |  |
Goodwill |  | 1,800
Indefinite-life intangible assets |  | € 500

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