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Equity (Share Repurchase Activity) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
9 Months Ended
Jun. 30, 2013
Jul. 01, 2012
Equity [Abstract]    
Number of shares acquired 10.8 0.4
Average price per share of acquired shares $ 50.52 $ 36.49
Total cost of acquired shares $ 544.1 $ 15.7