Income Taxes (Income Of U.S And Foreign Operations Before Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Income (Loss) from Continuing Operations before Income Taxes, United States	$ 897.5	$ 742.0	$ 562.2
Income (Loss) from Continuing Operations before Income Taxes, Foreign	1,086.1	846.2	651.8
Income (Loss) from Equity Method Investments	148.6	154.5	151.4
Income from Continuing Operations before Taxes	$ 2,132.2	$ 1,742.7	$ 1,365.4