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v3.26.1

Interim Financial Data by Segment - Schedule of Revenues, Significant Segment Expenses and Earnings before Income Taxes by Reportable Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Mar. 31, 2026 | Mar. 31, 2025
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 5,939.2 | $ 5,553.0 | $ 16,473.6 | $ 15,434.1
Less segment expenses: |  |  |  |
Total consolidated earnings before income taxes | 1,781.8 | 1,621.9 | 4,472.5 | 4,119.4
Operating Segments |  |  |  |
Less segment expenses: |  |  |  |
Total consolidated earnings before income taxes | 1,905.3 | 1,753.4 | 4,884.6 | 4,577.9
Intercompany eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | (2.9) | (3.4) | (9.7) | (9.6)
Operating Segments, Excluding Intersegment Elimination |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 5,942.1 | 5,556.4 | 16,483.3 | 15,443.7
Other |  |  |  |
Less segment expenses: |  |  |  |
Total consolidated earnings before income taxes | (123.5) | (131.5) | (412.1) | (458.5)
Employer Services | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 4,036.1 | 3,767.9 | 11,134.6 | 10,417.4
Less segment expenses: |  |  |  |
Selling and marketing | 603.0 | 555.0 | 1,733.5 | 1,591.9
Zero-margin benefits pass-through costs | 0.0 | 0.0 | 0.0 | 0.0
Worker's compensation coverage and state unemployment taxes | 0.0 | 0.0 | 0.0 | 0.0
Other segment expenses | 1,775.0 | 1,712.8 | 5,235.5 | 4,978.2
Total consolidated earnings before income taxes | 1,658.1 | 1,500.1 | 4,165.6 | 3,847.3
Employer Services | Intercompany eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | (2.9) | (3.4) | (9.7) | (9.6)
Employer Services | Operating Segments, Excluding Intersegment Elimination |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 4,036.1 | 3,767.9 | 11,134.6 | 10,417.4
PEO Services | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 1,906.0 | 1,788.5 | 5,348.7 | 5,026.3
Less segment expenses: |  |  |  |
Selling and marketing | 109.5 | 94.0 | 304.9 | 266.1
Zero-margin benefits pass-through costs | 1,170.0 | 1,090.0 | 3,427.2 | 3,194.4
Worker's compensation coverage and state unemployment taxes | 271.4 | 252.5 | 564.8 | 532.9
Other segment expenses | 107.9 | 98.7 | 332.8 | 302.3
Total consolidated earnings before income taxes | 247.2 | 253.3 | 719.0 | 730.6
PEO Services | Intercompany eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
PEO Services | Operating Segments, Excluding Intersegment Elimination |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 1,906.0 | 1,788.5 | 5,348.7 | 5,026.3
Revenues from external customers | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 5,535.3 | 5,197.8 | 15,474.2 | 14,552.8
Revenues from external customers | Employer Services | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 3,633.0 | 3,412.6 | 10,134.7 | 9,534.6
Revenues from external customers | PEO Services | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 1,902.3 | 1,785.2 | 5,339.5 | 5,018.2
Interest on funds held for clients |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 403.9 | 355.2 | 999.4 | 881.3
Interest on funds held for clients | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 403.9 | 355.2 | 999.4 | 881.3
Interest on funds held for clients | Employer Services | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | 400.2 | 351.9 | 990.2 | 873.2
Interest on funds held for clients | PEO Services | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues | $ 3.7 | $ 3.3 | $ 9.2 | $ 8.1

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