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Acquisitions and Disposals - Additional Information (Detail) - EUR (€) |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 22, 2017 | Dec. 31, 2017 | Nov. 01, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disclosure of Acquisitions and Disposals [Line Items] |  |  |  |  |
Total consideration |  | € 4,912,000,000 |  | € 2,069,000,000 |
Cash consideration |  | 4,825,000,000 |  |  |
Fair value of assets and liabilities recognised for the acquisition |  | 2,423,000,000 |  | 929,000,000 | € 999,000,000
Provisional estimate of the goodwill arising on the acquisition |  | 16,881,000,000 |  | € 17,624,000,000 |
Revenue of acquiree |  | 230,000,000 |  |  |
Operating profit (loss) of acquiree since acquisition date |  | 32,000,000 |  |  |
Revenue of group if acquisition completed |  | 54,440,000,000 |  |  |
Operating profit of group if acquisition completed |  | 9,060,000,000 |  |  |
Goodwill expected to be tax deductible |  | 568,000,000 |  |  |
Contingent liabilities acquired |  | € 0 |  |  |
Description of goodwill |  | Goodwill represents the future value which the Group believes it will obtain through operational synergies and the application of acquired company ideas to existing Unilever channels and businesses. |  |  |
Global Spreads Business Excluding South Africa [member] |  |  |  |  |
Disclosure of Acquisitions and Disposals [Line Items] |  |  |  |  |
Expected date of business disposal |  | During 2018 |  |  |
Spreads Business in South Africa [Member] |  |  |  |  |
Disclosure of Acquisitions and Disposals [Line Items] |  |  |  |  |
Acquisition percentage | 25.75% |  |  |  |
South Africa Holdings [Member] |  |  |  |  |
Disclosure of Acquisitions and Disposals [Line Items] |  |  |  |  |
Cash consideration payable | € 331,000,000 |  |  |  |
Unilever south Africa holdings [Member] |  |  |  |  |
Disclosure of Acquisitions and Disposals [Line Items] |  |  |  |  |
Expected date of business disposal |  | During 2018 |  |  |
Carver Korea [Member] |  |  |  |  |
Disclosure of Acquisitions and Disposals [Line Items] |  |  |  |  |
Total consideration |  | € 2,284,000,000 |  |  |
Acquisition percentage |  |  | 98.00% |  |
Cash consideration |  | 2,284,000,000 | € 2,284,000,000 |  |
Fair value of assets and liabilities recognised for the acquisition |  | 1,281,000,000 | 1,281,000,000 |  |
Provisional estimate of the goodwill arising on the acquisition |  |  | € 1,030,000,000 |  |
Total acquisition-related costs incurred |  | 1,000,000 |  |  |
Revenue of acquiree |  | 75,000,000 |  |  |
Operating profit (loss) of acquiree since acquisition date |  | 23,000,000 |  |  |
Revenue if all above acquisitions had taken place at beginning of year |  | 53,984,000,000 |  |  |
Operating profit if all above acquisitions had taken place at beginning of year |  | € 8,982,000,000 |  |  |

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- Definition The amount of acquisition-related costs for transactions recognised separately from the acquisition of assets and the assumption of liabilities in business combinations. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2016-01-13 -Paragraph B64 -Subparagraph m -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2016-03-30&anchor=para_B64_m&doctype=Appendix&seq=2 -URIDate 2016-03-31 + Details
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- Definition The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2016-01-13 -Paragraph B64 -Subparagraph f -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2016-03-30&anchor=para_B64_f_i&doctype=Appendix&seq=2 -URIDate 2016-03-31 + Details
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