Share Based Compensation (Details 1) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014
Summary of stock options
Outstanding shares, beginning balance	5,488
Granted, shares	947
Exercised, shares	(1,836)
Forfeited, shares	(75)
Cancelled, shares	(1)
Outstanding shares, ending balance	4,523
Vested or expected to vest, shares	4,361
Exercisable, shares	2,511
Outstanding, Weighted avg exercise price beginning balance	$ 64.53
Granted, Weighted Avg Exercise price	$ 109.07
Exercised, Weighted Avg Exercise price	$ 58.95
Forfeited, Weighted Avg Exercise price	$ 92.06
Cancelled, Weighted Avg Exercise price	$ 72.52
Outstanding, Weighted avg exercise price ending balance	$ 75.65
Vested or expected, Weighted Avg Exercise price	$ 75.04
Exercisable, Weighted Avg Exercise price	$ 62.48
Outstanding, Weighted Avg remaining contractual term (years)	7 years
Vested or expected ,Weighted Avg remaining contractual term (years)	6 years 11 months
Exercisable, Weighted Avg remaining contractual term (years)	5 years 10 months
Outstanding, Aggregate intrinsic value of in the money options	$ 155.0
Vested or expected, Aggregate intrinsic value of in the money options	152.1
Exercisable, Aggregate intrinsic value of in the money options	$ 119.0