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Employee Retirement Plans (Details 3) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2013
Pension Benefit [Member]
 
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]  
Fiscal 2014 $ 24.6
Fiscal 2015 24.4
Fiscal 2016 26.1
Fiscal 2017 28.8
Fiscal 2018 30.4
Fiscal 2019-2023 164.3
Other Postretirement Benefits [Member]
 
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]  
Fiscal 2014 1.4
Fiscal 2015 1.2
Fiscal 2016 1.2
Fiscal 2017 1.1
Fiscal 2018 1.1
Fiscal 2019-2023 $ 5.3