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Events After The Balance Sheet Date	6 Months Ended
	Jun. 30, 2019
Text block [abstract]
Events After The Balance Sheet Date	11 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 2018-01-01
-Section Disclosure
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=10&date=2018-03-01&anchor=sect_Disclosure&doctype=Standard
-URIDate 2018-03-16

+ 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 block [abstract]

+ References

No definition available.

+ Details

Name:	ul_TextBlockAbstract
Namespace Prefix:	ul_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration