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Events After The Balance Sheet Date | 6 Months Ended
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Jun. 30, 2018
Text block1 [abstract] |
Events After The Balance Sheet Date | 12 EVENTS AFTER THE BALANCE SHEET DATE There were no material post balance sheet events other than those mentioned elsewhere in this report.

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- Definition The entire disclosure for events after the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 10 -IssueDate 2017-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=10&date=2017-03-01&anchor=sect_Disclosure&doctype=Standard -URIDate 2017-03-09 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- Definition Text block1 [abstract] + References No definition available. + Details
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Namespace Prefix: | ul_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration