Restructuring Charges (Schedule of Restructuring Activities and Related Accruals) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Restructuring Reserve [Roll Forward] | ||||
| Restructuring and related costs | $ 23.0 | $ 11.8 | $ 47.4 | $ 15.9 |
| Ending Balance | 15.9 | 15.9 | ||
| Restructuring Charges, including amounts included in Cost of Products Sold | (8.7) | (14.5) | ||
| Employee Severance [Member] | ||||
| Restructuring Reserve [Roll Forward] | ||||
| Beginning Balance | 16.0 | |||
| Utilized - Cash Payments | (8.5) | |||
| Utilized - Non-Cash | (0.1) | |||
| Ending Balance | 15.9 | 15.9 | ||
| Other Restructuring [Member] | ||||
| Restructuring Reserve [Roll Forward] | ||||
| Beginning Balance | 0.7 | |||
| Utilized - Cash Payments | (34.4) | |||
| Asset Impairment and Accelerated Depreciation [Member] | ||||
| Restructuring Reserve [Roll Forward] | ||||
| Utilized - Non-Cash | (5.1) | |||
| Ending Balance | $ 0.0 | $ 0.0 | ||