Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Asbestos (Details 2)

v2.4.0.6
Asbestos (Details 2)
In Millions, unless otherwise specified
12 Months Ended
Mar. 31, 2012
USD ($)
Mar. 31, 2012
AUD
Mar. 31, 2011
USD ($)
Mar. 31, 2010
USD ($)
Summary of changes in asbestos liability        
Asbestos liability, Beginning balance $ (1,698.1) (1,643.1)    
Exchange rate, Beginning balance 0.9676 0.9676    
Asbestos claims paid 103.5 99.1    
Asbestos claims paid, Exchange rate 0.9573 0.9573    
AICF claims-handling costs incurred 2.8 2.7 2.2 2.1
AICF claims-handling costs incurred, Exchange rate 0.9573 0.9573    
Change in actuarial estimate (67.8) (65.2) 9.8 (3.8)
Change in actuarial estimate, Exchange rate 0.9614 0.9614    
Change in estimate of AICF claims-handling costs 8.4 8.1 12.2 (1.4)
Change In Estimate Claims Handling Costs Exchange Rate 0.9614 0.9614    
Gain (loss) on foreign currency exchange (11.4)      
Asbestos liability, Ending balance $ (1,662.6) (1,598.4) $ (1,698.1)  
Exchange rate, Ending balance 0.9614 0.9614 0.9676