Service Revenue (Summary of PEO Pass-Through Costs Netted in Revenue) (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Aug. 31, 2022 |
Aug. 31, 2021 |
|
| Revenue from Contract with Customer [Abstract] | ||
| Payroll wages and payroll taxes | $ 6,337.8 | $ 5,557.2 |
| State unemployment insurance (included in payroll wages and payroll taxes) | 9.5 | 15.4 |
| Guaranteed cost benefit plans | $ 156.7 | $ 150.9 |
| X | ||||||||||
- Definition Direct Pass Through Cost Guaranteed Cost Benefit Plans No definition available.
|
| X | ||||||||||
- Definition Direct Pass Through Cost Payroll Wages And Taxes Including Federal And State Unemployment Insurance No definition available.
|
| X | ||||||||||
- Definition Direct Pass Through Cost State Unemployment Insurance No definition available.
|
| X | ||||||||||
- References No definition available.
|