Quarterly report pursuant to Section 13 or 15(d)

Retirement Benefits (Details)

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Retirement Benefits (Details) (USD $)
In Millions
3 Months Ended 9 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Defined benefit plans        
Net pension costs     $ 6.8 $ 6.9
Defined Contribution Plans        
Expenses related to defined contribution plans 1.7 1.6 5.0 4.2
Pension Plan
       
Defined benefit plans        
Service costs 1.4 1.4 4.1 4.0
Interest costs 3.2 3.3 9.6 9.5
Expected return on plan assets (3.9) (3.6) (11.5) (10.3)
Amortization of unrecognized prior service costs, net 0.2 0.2 0.6 0.6
Amortization of net loss 1.0 0.7 3.0 2.2
Net pension costs 1.9 2.0 5.8 6.0
Postretirement healthcare plan
       
Defined benefit plans        
Net pension costs $ 0.3 $ 0.3 $ 1.0 $ 0.9