Share Based Compensation (Tables)

12 Months Ended

Sep. 30, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Fair value assumptions for stock options on the date of grant

We estimated the fair value of each stock option on the date of grant using the Black-Scholes pricing model and the following assumptions:

	2014		2013		2012
Average risk-free interest rate	1.52	%	0.66	%	1.06	%
Expected dividend yield	2.13	%	2.35	%	2.29	%
Expected volatility	41	%	43	%	43	%
Expected term (years)	5.2		5.3		5.3

Summary of stock option activity

A summary of stock option activity for the year ended September 30, 2014 is:

	Shares (in thousands)		Wtd. Avg. Exercise Price		Wtd. Avg. Remaining Contractual Term (years)	Aggregate Intrinsic Value of In-The-Money Options (in millions)
Outstanding at October 1, 2013	5,488		$	64.53
Granted	947		109.07
Exercised	(1,836	)	58.95
Forfeited	(75	)	92.06
Cancelled	(1	)	72.52
Outstanding at September 30, 2014	4,523		75.65		7.0	$	155.0
Vested or expected to vest at September 30, 2014	4,361		75.04		6.9	152.1
Exercisable at September 30, 2014	2,511		62.48		5.8	119.0

Summary of performance share activity

A summary of performance share activity for the year ended September 30, 2014 is as follows:

	Performance Shares (in thousands)		Wtd. Avg. Grant Date Share Fair Value
Outstanding at October 1, 2013	233		$	96.02
Granted1	69		108.48
Adjustmentfor performance results achieved2	57		87.00
Vested and issued	(127	)	87.00
Forfeited	(8	)	100.85
Outstanding at September 30, 2014	224		102.54

Schedule of performance shares vested during the year [Table Text Block]

The following table summarizes information about performance shares vested during the years ended September 30:

	2014			2013			2012
Percent payout	180		%	173		%	200		%
Shares vested (in thousands)	127			232			345
Total fair value of shares vested (in millions)	$	14.2		$	18.7		$	25.8

Fair value assumptions for performance share awards on the date of grant

The per-share fair value of performance share awards granted during the years ended September 30, 2014, 2013 and 2012 was $108.48, $98.15 and $101.57, respectively, which we determined using a Monte Carlo simulation and the following assumptions:

	2014		2013		2012
Average risk-free interest rate	0.60	%	0.32	%	0.39	%
Expected dividend yield	2.11	%	2.32	%	2.29	%
Expected volatility	33	%	36	%	43	%

Summary of restricted stock and restricted stock unit activity

A summary of restricted stock and restricted stock unit activity for the year ended September 30, 2014 is as follows:

	Restricted Stock and Restricted Stock Units (in thousands)		Wtd. Avg. Grant Date Share Fair Value
Outstanding at October 1, 2013	199		$	74.63
Granted	53		109.69
Vested	(56	)	73.31
Forfeited	(6	)	83.92
Outstanding at September 30, 2014	190		84.57