STATEMENTS OF CONSOLIDATED INCOME - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Product sales and service	$ 2,669.6	$ 2,571.2	$ 2,615.0
Rental revenue	349.1	309.8	292.3
Revenues	3,018.7	2,881.0	2,907.3
Cost of Net Revenue
Total cost of net revenue (excludes acquisition-related intangible asset amortization)	1,282.4	1,259.9	1,330.7
Rental expenses	148.2	146.0	151.6
Cost of Revenue	1,430.6	1,405.9	1,482.3
Research and development expenses	144.9	136.5	139.5
Selling and administrative expenses	887.0	820.4	941.0
Acquisition-related intangible asset amortization	108.6	109.0	122.4
Special charges	47.4	41.5	28.4
Operating Profit	400.2	367.7	316.1
Interest expense	(65.6)	(74.0)	(89.6)
Extinguishment of Debt, Amount			(3.3)
Gain (Loss) on Extinguishment of Debt, not included in Net Income		(15.6)
Loss on extinguishment of debt	(9.8)	(15.6)	(3.0)
Investment income (expense) and other, net	(22.0)	(6.9)	(14.6)
Income Before Income Taxes	302.8	271.2	208.6
Income tax expense	54.3	48.2	56.4
Net Income	248.5	223.0	152.2
Net Income Attributable to Common Shareholders	$ 248.5	$ 223.0	$ 152.2
Net Income Attributable to Common Shareholders per Common Share - Basic (usd per share)	$ 3.75	$ 3.35	$ 2.28
Diluted net income attributable to common shareholders per common share	$ 3.72	$ 3.32	$ 2.25
Average Common Shares Outstanding - Basic (in shares)	66,204	66,631	66,772
Average Common Shares Outstanding - Diluted (in shares)	66,847	67,212	67,660