XML 151 R114.htm IDEA: XBRL DOCUMENT v3.19.1

Interests in associates, joint ventures and other investments - Principal Associates and Joint Ventures (Detail)	12 Months Ended
	Dec. 31, 2018
Barrows Design and Manufacturing (Pty) Limited [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	South Africa
Associate, % owned	35.00%
Chime Communications Ltd [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	UK
Associate, % owned	24.90%
CVSC Sofres Media Co Limited [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	China
Associate, % owned	40.00%
Dat Viet VAC Media Corporation [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	Vietnam
Associate, % owned	30.00%
GIIR Inc [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	Korea
Associate, % owned	30.00%
Haworth Marketing & Media Company [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	USA
Associate, % owned	49.00%
High Co SA [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	France
Associate, % owned	34.10%
Imagina [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	Spain
Associate, % owned	22.50%
Marktest Investimentos SGPS S.A. [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	Portugal
Associate, % owned	40.00%
Nanjing Yindu Ogilvy Advertising Co. Ltd [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	China
Associate, % owned	49.00%
Richard Attias and Associates [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	USA
Associate, % owned	49.00%
Smollan Holdings (Pty) Ltd. [member]
Disclosure of principal associates and joint ventures [line items]
Associate, Country of incorporation	South Africa
Associate, % owned	24.80%

X

- Definition

The country in which an associate of the entity is incorporated. [Refer: Associates [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2018-01-01
-Paragraph 16
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_16_b_ii&doctype=Standard
-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2018-01-01
-Paragraph 17
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_17_b_ii&doctype=Standard
-URIDate 2018-03-16

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2018-01-01
-Paragraph 21
-Subparagraph a
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_21_a_iii&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_CountryOfIncorporationOrResidenceOfAssociate
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2018-01-01
-Paragraph 17
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_17_b_iii&doctype=Standard
-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2018-01-01
-Paragraph 16
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_16_b_iii&doctype=Standard
-URIDate 2018-03-16

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2018-01-01
-Paragraph 21
-Subparagraph a
-Clause iv
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_21_a_iv&doctype=Standard
-URIDate 2018-03-16

+ Details

Name:	ifrs-full_ProportionOfOwnershipInterestInAssociate
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of principal associates and joint ventures.

+ References

No definition available.

+ Details

Name:	wpp_DisclosureOfSignificantInvestmentsInAssociatesJointVenturesAndOtherInvestmentsLineItems
Namespace Prefix:	wpp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_BarrowsDesignandManufacturingPtyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_ChimeCommunicationsLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_CVSCSofresMediaCoLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_DatVietVacMediaCorporationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_GIIRIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_HaworthMarketingMediaCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_HighCoSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_ImaginaGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_MarktestInvestimentosSGPSSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_NanjingYinduOgilvyAdvertisingCompanyLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_RichardAttiasAndAssociatesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=wpp_SmollanHoldingsPtyLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: