XML 85 R76.htm IDEA: XBRL DOCUMENT v3.21.2

Going concern and liquidity risk - Additional Information (Detail)	3 Months Ended
	Jun. 30, 2021
Going Concern And Liquidity Risk [Line Items]
Maximum percentage of decline in revenue less pass-through costs to still meet liabilities as they fall due	29.00%

X

- References

No definition available.

+ Details

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

X

- Definition

Maximum Percentage of Decline in Revenue Less Pass-Through Costs To Still Meet Liabilities As They Fall Due

+ References

No definition available.

+ Details

Name:	wpp_MaximumPercentageOfRevenueLessPassThroughCostsDeclineToCoverLiabilities
Namespace Prefix:	wpp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration