XML 238 R88.htm IDEA: XBRL DOCUMENT
v3.20.4

Employees - Schedule of Charges Related to Equity-Settled Plans (Detail) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of Share Based Compensation Plans [Line Items] |  |  |
Income statement charge | € (108) | € (151) | € (196)
Performance share plans [Member] |  |  |
Disclosure of Share Based Compensation Plans [Line Items] |  |  |
Income statement charge | (98) | (142) | (183)
Other plans [Member] |  |  |
Disclosure of Share Based Compensation Plans [Line Items] |  |  |
Income statement charge | € (10) | € (9) | € (13)

X
- Definition The amount of expense from share-based payment transactions with employees. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disclosure of share based compensation plans. + References No definition available. + Details
Name: | ul_DisclosureOfShareBasedCompensationPlansLineItems
Namespace Prefix: | ul_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=ul_PerformanceSharePlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=ul_OtherShareBasedPlansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |