Share Based Compensation (Details 1) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2013
Summary of stock options
Outstanding shares, beginning balance	7,873
Granted, shares	1,087
Exercised, shares	(3,379)
Forfeited, shares	(91)
Cancelled, shares	(2)
Outstanding shares, ending balance	5,488
Vested or expected to vest, shares	5,311
Exercisable, shares	3,048
Outstanding, Weighted avg exercise price beginning balance	$ 56.75
Granted, Weighted Avg Exercise price	$ 80.34
Exercised, Weighted Avg Exercise price	$ 51.22
Forfeited, Weighted Avg Exercise price	$ 74.07
Cancelled, Weighted Avg Exercise price	$ 65.13
Outstanding, Weighted avg exercise price ending balance	$ 64.53
Vested or expected, Weighted Avg Exercise price	$ 64.15
Exercisable, Weighted Avg Exercise price	$ 55.40
Outstanding, Weighted Avg remaining contractual term (years)	6 years 10 months 24 days
Vested or expected ,Weighted Avg remaining contractual term (years)	6 years 9 months 18 days
Exercisable, Weighted Avg remaining contractual term (years)	5 years 7 months 6 days
Outstanding, Aggregate intrinsic value of in the money options	$ 232.7
Vested or expected, Aggregate intrinsic value of in the money options	227.3
Exercisable, Aggregate intrinsic value of in the money options	$ 157.1