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Ordinary dividends - Summary of Proposed Final Dividend (Details) - £ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of Dividends [abstract]
Proposed final dividend (pence per share)	£ 0.244	£ 0.244	£ 0.244

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- Definition

Disclosure of dividends.

+ References

No definition available.

+ Details

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

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- Definition

Suspended dividends that were due to be proposed or declared.

+ References

No definition available.

+ Details

Name:	wpp_SuspendedDividendsThatWereDueToBeProposedOrDeclared
Namespace Prefix:	wpp_
Data Type:	dtr-types1:perShareItemType
Balance Type:	na
Period Type:	duration