Share-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2012

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:

	2012		2011		2010
Average risk-free interest rate	1.06	%	1.94	%	2.15	%
Expected dividend yield	2.29	%	2.37	%	3.16	%
Expected volatility	0.43		0.39		0.41
Expected term (years)	5.3		5.5		5.5

Summary of stock options

A summary of stock option activity for the year ended September 30, 2012 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, 2011	7,781		$	51.46
Granted	1,388		74.12
Exercised	(1,187	)	41.58
Forfeited	(106	)	65.97
Cancelled	(3	)	54.21
Outstanding at September 30, 2012	7,873		56.75		6.5	$	107.6
Vested or expected to vest at September 30, 2012	7,647		56.45		6.4	106.4
Exercisable at September 30, 2012	4,781		50.32		5.3	92.1

Summary of performance share activity

A summary of performance share activity for the year ended September 30, 2012 is as follows:

	Performance Shares (in thousands)		Wtd. Avg. Grant Date Share Fair Value
Outstanding at October 1, 2011	382		$	50.70
Granted	93		101.57
Vested	(173	)	31.82
Forfeited	(5	)	90.27
Outstanding at September 30, 2012	297		76.84

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, 2012, 2011 and 2010 was $101.57, $87.00 and $54.81, respectively, which we determined using a Monte Carlo simulation and the following assumptions:

	2012		2011		2010
Average risk-free interest rate	0.39	%	0.63	%	1.22	%
Expected dividend yield	2.29	%	2.01	%	2.51	%
Expected volatility (Rockwell Automation)	0.43		0.49		0.48

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, 2012 is as follows:

	Restricted Stock and Restricted Stock Units (in thousands)		Wtd. Avg. Grant Date Share Fair Value
Outstanding at October 1, 2011	276		$	47.52
Granted	84		73.73
Vested	(83	)	31.97
Forfeited	(8	)	80.55
Outstanding at September 30, 2012	269		59.57