Basis of Presentation and Accounting Policies (Tables)

6 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table reconciles basic and diluted earnings per share (EPS) amounts (in millions, except per share amounts):

	Three Months Ended March 31,				Six Months Ended March 31,
	2021		2020		2021		2020
Net income attributable to Rockwell Automation	$	415.0	$	132.2	$	1,008.3	$	442.9
Less: Allocation to participating securities	(0.9)		—		(1.6)		(0.4)
Net income available to common shareowners	$	414.1	$	132.2	$	1,006.7	$	442.5
Basic weighted average outstanding shares	116.1		116.0		116.1		115.8
Effect of dilutive securities
Stock options	0.9		0.6		0.9		0.8
Performance shares	0.1		—		0.1		—
Diluted weighted average outstanding shares	117.1		116.6		117.1		116.6
Earnings per share:
Basic	$	3.57	$	1.14	$	8.67	$	3.82
Diluted	$	3.54	$	1.13	$	8.59	$	3.80