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Capital and Funding - Summary of Treasury Shares Movements (Detail) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Disclosure of classes of share capital [line items] |  |  |
1 January |  | € (9,208) | € (4,164)
Repurchase of shares (see note 24) | [1] | (6,020) | (5,014)
Other purchases and utilisations |  | (8) | (30)
31 December |  | (10,181) | € (9,208)
Unilever PLC [member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Cancellation of NV and PLC shares |  | € 5,055 |
[1] | Repurchase of shares reflects the cost of acquiring ordinary shares as part of the share buyback programmes announced on 19 April 2018 and 6 April 2017.

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