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Operating costs - Average number of employees (Details) - employee | 12 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020
Disclosure of operating segments [line items] |  |  |
Average number of employees | 27,987 | 27,566 | 28,355
Operating segments | North America |  |  |
Disclosure of operating segments [line items] |  |  |
Average number of employees | 2,811 | 2,562 | 2,459
Operating segments | Europe |  |  |
Disclosure of operating segments [line items] |  |  |
Average number of employees | 3,014 | 3,237 | 3,323
Operating segments | Asia Pacific |  |  |
Disclosure of operating segments [line items] |  |  |
Average number of employees | 6,500 | 6,474 | 6,559
Operating segments | Africa |  |  |
Disclosure of operating segments [line items] |  |  |
Average number of employees | 4,061 | 4,016 | 4,617
Operating segments | Latin America and Caribbean |  |  |
Disclosure of operating segments [line items] |  |  |
Average number of employees | 1,500 | 1,505 | 1,549
Operating segments | SC&P |  |  |
Disclosure of operating segments [line items] |  |  |
Average number of employees | 5,025 | 5,085 | 4,908
Corporate and other |  |  |
Disclosure of operating segments [line items] |  |  |
Average number of employees | 5,076 | 4,687 | 4,940

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