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v3.19.2

Consolidated Statement of Changes in Equity (Parenthetical) | 6 Months Ended
--- | ---
Jun. 30, 2019 shares
NV Member |
Number of shares cancelled | 170,000,000
PLC Member |
Number of shares cancelled | 18,660,634

X
- Definition Cancelled shares. + References No definition available. + Details
Name: | ul_CancelledShares
Namespace Prefix: | ul_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ul_NvMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ul_PlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |