Share-Based Compensation (Tables)

12 Months Ended

Sep. 30, 2011

Share-Based Compensation [Abstract]

Fair value assumptions for stock options on the date of grant

	2011			2010			2009
Average risk-free interest rate		1.94	%		2.15	%		1.63	%
Expected dividend yield		2.37	%		3.16	%		2.47	%
Expected volatility		0.39			0.41			0.35
Expected term (years)		5.5			5.5			5.4

Summary of stock options

								Aggregate
						Wtd. Avg.		Intrinsic Value
				Wtd. Avg.		Remaining		of In-The-Money
	Shares			Exercise		Contractual		Options
	(in thousands)			Price		Term (years)		(in millions)
Outstanding at October 1, 2010		10,351		$	44.34
Granted		1,727			69.87
Exercised		(4,164	)		41.46
Forfeited		(126	)		49.08
Cancelled		(7	)		51.94
Outstanding at September 30, 2011		7,781			51.46		6.8	$	72.4
Vested or expected to vest at September 30, 2011		7,480			51.40		6.8		69.6
Exercisable at September 30, 2011		3,911			50.01		5.3		37.0

Summary of performance share activity

				Wtd. Avg.
	Performance			Grant Date
	Shares			Share
	(in thousands)			Fair Value
Outstanding at October 1, 2010		426		$	48.90
Granted		77			87.00
Vested		(104	)		70.32
Forfeited		(17	)		48.94
Outstanding at September 30, 2011		382			50.70

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

	2011			2010			2009
Average risk-free interest rate		0.63	%		1.22	%		1.46	%
Expected dividend yield		2.01	%		2.51	%		2.47	%
Expected volatility (Rockwell Automation)		0.49			0.48			0.40

Summary of restricted stock and restricted stock unit activity

	Restricted
	Stock and			Wtd. Avg.
	Restricted			Grant Date
	Stock Units			Share
	(in thousands)			Fair Value
Outstanding at October 1, 2010		294		$	44.56
Granted		68			69.00
Vested		(65	)		64.05
Forfeited		(21	)		42.44
Outstanding at September 30, 2011		276			47.52