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Debt (Schedule Of Maturities Of Long-Term Debt) (Details) (USD $)
In Millions
Sep. 30, 2011
Sep. 30, 2010
Debt [Abstract]  
2012$ 473.8 
2013333.9 
2014475.7 
2015479.2 
2016402.0 
Thereafter1,835.1 
Long-term debt$ 3,999.7$ 3,842.3