Consolidated Statement of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Sales
Sales	$ 1,681.3	$ 1,657.2	$ 3,365.8	$ 3,299.5
Cost of sales
Cost of sales	(982.5)	(949.0)	(1,964.1)	(1,852.6)
Gross profit	698.8	708.2	1,401.7	1,446.9
Selling, general and administrative expenses	(352.0)	(385.0)	(755.2)	(771.7)
Change in fair value of investments	(144.8)	98.2	(73.8)	(114.5)
Other (expense) income	(9.1)	4.7	(18.8)	6.9
Interest expense	(25.5)	(23.7)	(51.9)	(44.4)
Income before income taxes	167.4	402.4	502.0	523.2
Income tax provision	(37.5)	(56.4)	(56.7)	(96.9)
Net income	129.9	346.0	445.3	426.3
Net (loss) income attributable to noncontrolling interests	(2.3)	0.0	2.4	0.0
Net income attributable to Rockwell Automation, Inc.	$ 132.2	$ 346.0	$ 442.9	$ 426.3
Earnings per share:
Basic (in usd per share)	$ 1.14	$ 2.91	$ 3.82	$ 3.56
Diluted (in usd per share)	$ 1.13	$ 2.88	$ 3.80	$ 3.53
Weighted average outstanding shares:
Basic (in shares)	116.0	118.9	115.8	119.6
Diluted (in shares)	116.6	120.0	116.6	120.7
Products and solutions
Sales
Sales	$ 1,506.0	$ 1,466.8	$ 3,014.9	$ 2,924.4
Cost of sales
Cost of sales	(867.9)	(823.6)	(1,733.9)	(1,606.0)
Services
Sales
Sales	175.3	190.4	350.9	375.1
Cost of sales
Cost of sales	$ (114.6)	$ (125.4)	$ (230.2)	$ (246.6)