XML 59 R51.htm IDEA: XBRL DOCUMENT
v3.21.2

Dividends - Summary of Quarterly Dividend Calendar (Detail) | 6 Months Ended
--- | ---
Jun. 30, 2021
Quarterly Dividend For Q2 2021 [member] |
Disclosure of Dividends [Line Items] |
Announcement Date | Jul. 22, 2021
Ex-Dividend Date | Aug. 05, 2021
Record Date | Aug. 06, 2021
Payment Date | Sep. 08, 2021
Quarterly Dividend For Q3 2021 [member] |
Disclosure of Dividends [Line Items] |
Announcement Date | Oct. 21, 2021
Ex-Dividend Date | Nov. 04, 2021
Record Date | Nov. 05, 2021
Payment Date | Dec. 01, 2021

X
- Definition Disclosure of dividends. + References No definition available. + Details
Name: | ul_DisclosureOfDividendsLineItems
Namespace Prefix: | ul_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Dividend Declared Date. + References No definition available. + Details
Name: | ul_DividendDeclaredDate
Namespace Prefix: | ul_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Dividend Payable Date. + References No definition available. + Details
Name: | ul_DividendPayableDate
Namespace Prefix: | ul_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Dividends Record Date. + References No definition available. + Details
Name: | ul_DividendsRecordDate
Namespace Prefix: | ul_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Ex Dividend Date. + References No definition available. + Details
Name: | ul_ExDividendDate
Namespace Prefix: | ul_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ul_DividendAxis=ul_QuarterlyDividendForQ22021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ul_DividendAxis=ul_QuarterlyDividendForQ32021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |