Shareowners' Equity (Tables)

12 Months Ended

Sep. 30, 2021

Equity [Abstract]

Schedule of Stockholders Equity

Changes in outstanding common shares are summarized as follows (in millions):

	2021	2020	2019
Beginning balance	116.2	115.7	121.0
Treasury stock purchases	(1.1)	(1.4)	(6.1)
Common stock issued (including share based compensation impact)	0.9	1.9	0.8
Ending balance	116.0	116.2	115.7

Schedule of Accumulated Other Comprehensive Income (Loss)

Changes in accumulated other comprehensive loss attributable to Rockwell Automation by component were (in millions):

	Pension and other postretirement benefit plan adjustments, net of tax (Note 14)		Accumulated currency translation adjustments, net of tax		Net unrealized gains (losses) on cash flow hedges, net of tax		Net unrealized gains (losses) on available-for-sale investments, net of tax		Total accumulated other comprehensive loss, net of tax
Balance as of September 30, 2018	$	(658.1)	$	(286.0)	$	4.4	$	(2.2)	$	(941.9)
Other comprehensive income (loss) before reclassifications	(532.1)		(55.3)		(5.3)		2.2		(590.5)
Amounts reclassified from accumulated other comprehensive loss	56.5		—		(12.1)		—		44.4
Other comprehensive income (loss)	(475.6)		(55.3)		(17.4)		2.2		(546.1)
Balance as of September 30, 2019	$	(1,133.7)	$	(341.3)	$	(13.0)	$	—	$	(1,488.0)
Other comprehensive income (loss) before reclassifications	(100.2)		26.0		(7.3)		—		(81.5)
Amounts reclassified from accumulated other comprehensive loss	109.5		—		(11.2)		—		98.3
Other comprehensive income (loss)	9.3		26.0		(18.5)		—		16.8
Adoption of accounting standard/other	(146.8)		3.8		—		—		(143.0)
Balance as of September 30, 2020	$	(1,271.2)	$	(311.5)	$	(31.5)	$	—	$	(1,614.2)
Other comprehensive income (loss) before reclassifications	438.9		31.4		(29.2)		—		441.1
Amounts reclassified from accumulated other comprehensive loss	138.2		—		17.8		—		156.0
Other comprehensive income (loss)	577.1		31.4		(11.4)		—		597.1
Balance as of September 30, 2021	$	(694.1)	$	(280.1)	$	(42.9)	$	—	$	(1,017.1)

Reclassification of Accumulated Other Comprehensive Income (Loss)

The reclassifications out of accumulated other comprehensive loss to the Consolidated Statement of Operations were (in millions):

	Year Ended September 30,						Affected Line in the Consolidated Statement of Operations
	2021		2020		2019
Pension and other postretirement benefit plan adjustments(1):
Amortization of prior service credit	$	(4.0)	$	(4.5)	$	(4.2)	Other income (expense)
Amortization of net actuarial loss	142.5		148.7		78.7		Other income (expense)
Settlements	39.8		—		1.2		Other income (expense)
	178.3		144.2		75.7		Income before income taxes
	(40.1)		(34.7)		(19.2)		Income tax provision
	$	138.2	$	109.5	$	56.5	Net income
Net unrealized losses (gains) on cash flow hedges:
Forward exchange contracts	$	(1.9)	$	0.7	$	(1.0)	Sales
Forward exchange contracts	25.4		(19.6)		(18.2)		Cost of sales
Forward exchange contracts	(1.5)		1.4		1.3		Selling, general and administrative expenses
Treasury locks related to 2019 and 2021 debt issuances	2.3		2.1		1.2		Interest expense
	24.3		(15.4)		(16.7)		Income before income taxes
	(6.5)		4.2		4.6		Income tax provision
	$	17.8	$	(11.2)	$	(12.1)	Net income
Total reclassifications	$	156.0	$	98.3	$	44.4	Net income

(1) These components are included in the computation of net periodic benefit costs. See Note 14 for further information.