XML 44 R36.htm IDEA: XBRL DOCUMENT v3.10.0.1

Taxation - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Effective tax rate [abstract]
Effective tax rate	25.90%	28.90%

X

- Definition

The tax expense (income) divided by the accounting profit. [Refer: Accounting profit]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 12
-IssueDate 2017-01-01
-Paragraph 81
-Subparagraph c
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_81_c_ii&doctype=Standard
-URIDate 2017-03-09

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

Effective tax rate.

+ References

No definition available.

+ Details

Name:	ul_EffectiveTaxRateAbstract
Namespace Prefix:	ul_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration