Retirement Benefits (Projected Benefit Payments) (Details) - Defined Benefit Pension Plan $ in Millions	Sep. 30, 2025 USD ($)
U.S.
Defined Benefit Plan Disclosure [Line Items]
2026	$ 189.2
2027	185.6
2028	188.2
2029	190.4
2030	191.8
2031-2035	950.6
International
Defined Benefit Plan Disclosure [Line Items]
2026	69.5
2027	74.4
2028	74.7
2029	76.7
2030	80.3
2031-2035	$ 433.8

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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