Annual report pursuant to Section 13 and 15(d)

Retirement Benefits (Details)

v2.3.0.15
Retirement Benefits (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Sep. 30, 2011
Year
Acquisitions
company
Segment
Month
RetirementPrograms
Sep. 30, 2010
Sep. 30, 2009
Retirement Benefits      
Percentage of employee participation in retirement programs (as a percent) 55.00%    
Number of retirement programs in which specified percentage of employees participate 1    
Number of retirement programs 3    
Net pension costs      
Net pension costs $ 9.9 $ 9.5 $ 4.7
Amounts recorded in the consolidated balance sheets:      
Accrued pension and postretirement healthcare costs, long-term portion 108.5 88.7  
Pension plans
      
Net pension costs      
Service cost 6.3 5.6 3.3
Interest cost 12.8 12.7 12.6
Expected return on plan assets (15.4) (13.9) (13.1)
Amortization of unrecognized prior service cost, net 0.9 0.9 0.8
Amortization of actuarial loss 4.0 3.0  
Net pension costs 8.6 8.3 3.6
Change in benefit obligation:      
Projected benefit obligation at beginning of year 269.3 230.2  
Projected benefit obligation attributable to acquisitions   21.4  
Service cost 6.3 5.6 3.3
Interest cost 12.8 12.7 12.6
Actuarial loss 17.9 7.3  
Benefits paid (9.5) (9.4)  
Effect of exchange rates on projected benefit obligation 1.9 1.5  
Projected benefit obligation at end of year 298.7 269.3 230.2
Change in plan assets:      
Fair value of plan assets at beginning of year 195.7 155.5  
Fair value of pension assets attributable to acquisitions   24.7  
Actual return on plan assets 8.8 17.3  
Benefits paid (9.5) (9.4)  
Administrative expenses paid (0.2) (0.3)  
Effect of exchange rates on plan assets 2.2 1.8  
Fair value of plan assets at end of year 200.3 195.7 155.5
Funded status:      
Plan assets less than benefit obligations (98.4) (73.6)  
Amounts recorded in the consolidated balance sheets:      
Other assets 0.4 3.3  
Accrued pension and postretirement healthcare costs, current portion 1.6 1.6  
Accrued pension and postretirement healthcare costs, long-term portion 97.2 75.3  
Plan assets less than benefit obligations (98.4) (73.6)  
Accumulated other comprehensive loss      
Net actuarial losses (97.1) (76.7)  
Prior service cost 4.4 5.3  
Aggregate tax effect 37.3 30.6  
Estimated amount that will be amortized from accumulated other comprehensive loss into net benefit costs 6.5    
Accumulated Benefit Obligation      
Accumulated benefit obligation 288.1 259.4  
Projected benefit obligation 269.1 246.2  
Accumulated benefit obligation 260.2 237.4  
Fair value of plan assets 170.2 169.2  
Actuarial Assumptions      
Discount rate for obligation, end of year (as a percent) 4.30% 4.80% 5.50%
Discount rate for expense, during the year (as a percent) 4.50% 5.30% 7.50%
Expected rate of return on plan assets (as a percent) 6.90% 7.60% 7.75%
Rate of compensation increase (as a percent) 2.40% 2.40% 4.00%
Plan Assets      
Maximum target investment in return seeking investments as a percentage of total domestic plan assets (as a percent) 60.00%    
Maximum investment in any one company in the equity portfolio (as a percent) 10.00%    
Statutory limit for common stock of the reporting entity as a percentage of trust assets (as a percent) 10.00%    
Postretirement healthcare plan
      
Net pension costs      
Service cost 0.7 0.6  
Interest cost 0.6 0.6  
Change in benefit obligation:      
Projected benefit obligation at beginning of year 14.2 12.1  
Service cost 0.7 0.6  
Interest cost 0.6 0.6  
Actuarial loss (5.2) 1.3  
Benefits paid (0.2) (0.4)  
Projected benefit obligation at end of year 10.1 14.2  
Change in plan assets:      
Benefits paid (0.2) (0.4)  
Amounts recorded in the consolidated balance sheets:      
Accrued pension and postretirement healthcare costs, current portion 0.4 0.8  
Accrued pension and postretirement healthcare costs, long-term portion 9.7 13.4  
Plan assets less than benefit obligations 10.1 14.2  
Accumulated other comprehensive loss      
Net actuarial losses 4.2 (1.0)  
Aggregate tax effect 1.5 (0.4)  
Estimated amount that will be amortized from accumulated other comprehensive loss into net benefit costs $ 0.3    
Actuarial Assumptions      
Discount rate for obligation, end of year (as a percent) 4.10% 4.50% 5.25%