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Consolidated Cash Flow Statement (Parenthetical) € in Millions | 12 Months Ended
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Dec. 31, 2018 EUR (€)
Statement of cash flows [abstract] |
Non-cash credit from early settlement of contingent consideration | € 277

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- References No definition available. + Details
Name: | ifrs-full_StatementOfCashFlowsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Credit from early settlement of contingent consideration Blueair. + References No definition available. + Details
Name: | ul_CreditFromEarlySettlementOfContingentConsiderationBlueair
Namespace Prefix: | ul_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration