XML 165 R128.htm IDEA: XBRL DOCUMENT
v3.19.1

Capital and Funding - Summary of Consolidated Statement of Changes in Equity: Analysis of Other Reserves (Parenthetical) (Detail) | Dec. 31, 2018 € / shares | Dec. 31, 2018 £ / shares | Dec. 31, 2017 € / shares | Dec. 31, 2017 £ / shares | Dec. 31, 2016 € / shares | Dec. 31, 2016 £ / shares
--- | --- | --- | --- | --- | --- | ---
Unilever N.V. [member] |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |
Par value per share | € / shares | € 0.16 |  | € 0.16 |  | € 0.16 |
Unilever PLC [member] |  |  |  |  |  |
Disclosure of reserves within equity [line items] |  |  |  |  |  |
Par value per share | £ / shares |  | £ 0.0311 |  | £ 0.0311 |  | £ 0.0311

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_DisclosureOfReservesWithinEquityLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The nominal value per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 79 -Subparagraph a -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_79_a_iii&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ParValuePerShare
Namespace Prefix: | ifrs-full_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ul_ParentCompaniesOfTheGroupAxis=ul_UnileverNVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ul_ParentCompaniesOfTheGroupAxis=ul_UnileverPLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |