Supplemental Information (Payables and Accrued Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Supplemental Information [Abstract]
Trade creditors	$ 740.6	$ 1,025.5
Customer advances	172.1	162.7
Accrued payroll and employee benefits	155.0	133.5
Pension and postretirement benefits	48.4	25.6
Dividends payable	164.1	150.0
Outstanding payments in excess of certain cash balances	28.0	10.5
Accrued interest expense	46.9	54.1
Derivative instruments	82.5	27.5
Contingent proceeds related to Homecare retenders	0	148.1
Severance and other costs associated with business restructuring and cost reduction actions	20.6	65.2
Other	132.8	142.2
Payables and accrued liabilities total	$ 1,591.0	$ 1,944.9