Costs of services and general and administrative costs - Auditor's Remuneration (Details) - GBP (£) £ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Information About Operating Cost [line items]
Audit-related services	£ 0.5	£ 0.4	£ 0.4
Fees payable to the auditors pursuant to legislation	39.9	36.9	31.9
Other services	1.7	0.6	1.4
Total other fees	2.2	1.1	1.8
Total fees	42.1	38.0	33.7
Compliance services
Disclosure Of Information About Operating Cost [line items]
Tax compliance services	0.0	0.1	0.0
WPP plc
Disclosure Of Information About Operating Cost [line items]
Audit-related services	10.0	8.4	7.1
Subsidiaries
Disclosure Of Information About Operating Cost [line items]
Audit-related services	£ 29.9	£ 28.5	£ 24.8

The amount of fees paid or payable to the entity's auditors.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 112
-Subparagraph c
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-URIDate 2023-03-23

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- Definition

The amount of fees paid or payable to the entity's auditors for auditing services.

+ References

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- Definition

The amount of fees paid or payable to the entity's auditors for services that the entity does not separately disclose in the same statement or note.

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- Definition

The amount of fees paid or payable to the entity's auditors for tax services.

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- Definition

Auditors' remuneration for fees payable to auditors pursuant to legislation.

+ References

No definition available.

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Auditors' remuneration for non-audit fees.

+ References

No definition available.

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- Definition

Disclosure of information about operating cost line items.

+ References

No definition available.

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