XML 86 R63.htm IDEA: XBRL DOCUMENT v3.5.0.2
Retirement Plans (Net Periodic Benefit Cost) (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Defined Benefit Plan, Net Periodic Benefit Cost $ 21.0 $ 1.1 $ 1.5
Pension Plan, Defined Benefit [Member]      
Other 0.1 0.0 0.0
Service cost 1.7 1.9 1.7
Interest cost 18.9 20.1 19.9
Expected return on plan assets (19.7) (24.6) (23.8)
Amortization of net loss (gain) 3.4 3.2 3.5
Curtailment / special settlement loss (gain) 16.6 0.5 0.2
Defined Benefit Plan, Net Periodic Benefit Cost $ 21.0 $ 1.1 $ 1.5