XML 314 R164.htm IDEA: XBRL DOCUMENT v3.20.4

Commitments and Contingent Liabilities - Additional Information (Detail) - EUR (€) € in Millions	Dec. 31, 2020	Dec. 31, 2019
United Kingdom [Member] | Issue Of Intangible Assets And Permanent Establishment [Member]
Disclosure of contingent liabilities [line items]
Tax Assessment Relating To NV Permanent Establishment in UK		€ 141
Brazil [member]
Disclosure of contingent liabilities [line items]
Corporate reorganisation tax assessment	€ 2,040	€ 2,235
Potential tax litigation cases that will move to Judicial courts	€ 863

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfContingentLiabilitiesLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Indirect tax relating to corporate reorganisation.

+ References

No definition available.

+ Details

Name:	ul_IndirectTaxRelatingToCorporateReorganisation
Namespace Prefix:	ul_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Potential tax litigation cases that will move to judicial courts.

+ References

No definition available.

+ Details

Name:	ul_PotentialTaxLitigationCasesThatWillMoveToJudicialCourts
Namespace Prefix:	ul_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Tax assessment relating to NV permanent establishment in UK.

+ References

No definition available.

+ Details

Name:	ul_TaxAssessmentRelatingToNVPermanentEstablishmentInUK
Namespace Prefix:	ul_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=ul_UkMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ul_BasisOfAssessmentAxis=ul_IssueOfIntangibleAssetsAndPermanentEstablishmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_GeographicalAreasAxis=country_BR
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: