Goodwill and Intangible Assets, Net of Accumulated Amortization (Components of Intangible Assets, at Cost) (Details) - USD ($) $ in Millions |
May 31, 2026 |
May 31, 2025 |
|---|---|---|
| Intangible Assets [Line Items] | ||
| Total intangible assets, gross | $ 2,559.0 | $ 2,523.1 |
| Less: Accumulated amortization | 875.0 | 575.8 |
| Intangible assets, net of accumulated amortization | 1,684.0 | 1,947.3 |
| Customer Lists [Member] | ||
| Intangible Assets [Line Items] | ||
| Total intangible assets, gross | 1,835.5 | 1,797.9 |
| Acquired Developed Software [Member] | ||
| Intangible Assets [Line Items] | ||
| Total intangible assets, gross | 408.5 | 410.5 |
| Other Intangible Assets [Member] | ||
| Intangible Assets [Line Items] | ||
| Total intangible assets, gross | $ 315.0 | $ 314.7 |