Consolidated Statement of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Sales
Sales	$ 1,657.2	$ 1,651.2	$ 3,299.5	$ 3,237.8
Cost of sales
Cost of sales	(949.0)	(947.3)	(1,852.6)	(1,833.7)
Gross profit	708.2	703.9	1,446.9	1,404.1
Selling, general and administrative expenses	(385.0)	(386.6)	(771.7)	(773.2)
Other income (expense)	102.9	(0.4)	(107.6)	3.8
Interest expense	(23.7)	(17.3)	(44.4)	(37.3)
Income before income taxes	402.4	299.6	523.2	597.4
Income tax provision	(56.4)	(72.2)	(96.9)	(606.4)
Net income (loss)	$ 346.0	$ 227.4	$ 426.3	$ (9.0)
Earnings (loss) per share:
Basic (in usd per share)	$ 2.91	$ 1.79	$ 3.56	$ (0.07)
Diluted (in usd per share)	$ 2.88	$ 1.77	$ 3.53	$ (0.07)
Weighted average outstanding shares:
Basic (in shares)	118.9	126.9	119.6	127.6
Diluted (in shares)	120.0	128.5	120.7	127.6
Products and solutions
Sales
Sales	$ 1,466.8	$ 1,470.5	$ 2,924.4	$ 2,883.0
Cost of sales
Cost of sales	(823.6)	(836.1)	(1,606.0)	(1,616.6)
Services
Sales
Sales	190.4	180.7	375.1	354.8
Cost of sales
Cost of sales	$ (125.4)	$ (111.2)	$ (246.6)	$ (217.1)