Income Taxes (Income of U.S and Foreign Operations Before Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Income from Continuing Operations Before Taxes
United States income	$ 2,602.5	$ 1,050.5	$ 947.9
Foreign income	1,571.0	1,227.6	1,325.3
Equity affiliates' income	647.7	604.3	481.5
Income From Continuing Operations Before Taxes	$ 4,821.2	$ 2,882.4	$ 2,754.7