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Our people - Reportable Segment Distribution of Staff (Details) - number_of_employee	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of operating segments [line items]
Average number of staff	114,732	114,129	104,808
Global Integrated Agencies
Disclosure of operating segments [line items]
Average number of staff	97,838	97,288	89,701
Public Relations
Disclosure of operating segments [line items]
Average number of staff	8,377	8,125	7,121
Specialist Agencies
Disclosure of operating segments [line items]
Average number of staff	8,517	8,716	7,986

X

- Definition

The average number of personnel employed by the entity during a period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2023-01-01
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-URIDate 2023-03-23

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X

- Definition

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

+ References

No definition available.

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