XML 87 R75.htm IDEA: XBRL DOCUMENT v3.20.4

Accounting Policies - Trade receivables and work in progress - Additional Information (Detail)	Dec. 31, 2019
181 days - 1 year [member]
Disclosure of initial application of standards or interpretations [line items]
Percentage of trade receivables for which loss allowance required	50.00%
Over 1 year [member]
Disclosure of initial application of standards or interpretations [line items]
Percentage of trade receivables for which loss allowance required	100.00%

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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

X

- Definition

Percentage of trade receivables for which loss allowance required.

+ References

No definition available.

+ Details

Name:	wpp_PercentageOfTradeReceivablesForWhichLossAllowanceRequired
Namespace Prefix:	wpp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_PastDueStatusAxis=ifrs-full_LaterThanSixMonthsAndNotLaterThanOneYearMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_PastDueStatusAxis=ifrs-full_LaterThanOneYearMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: