Employee Benefit Plans - Schedule of Future Benefit Payments (Details) $ in Millions	Sep. 30, 2025 USD ($)
Pension benefits
Defined Benefit Plan Disclosure [Line Items]
2026	$ 137.7
2027	135.7
2028	132.3
2029	130.7
2030	126.6
2028 - 2032	582.9
Total	1,245.9
Other postretirement benefits
Defined Benefit Plan Disclosure [Line Items]
2026	2.5
2027	2.3
2028	2.2
2029	2.1
2030	2.0
2028 - 2032	8.8
Total	$ 19.9

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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