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Revenue - Revenue by Type (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Revenues	$ 865.8	$ 852.4	$ 818.4	$ 830.7	$ 813.5	$ 824.0	$ 789.3	$ 791.1	$ 3,367.3	$ 3,217.9	$ 3,058.8
Capital equipment, components and software
Disaggregation of Revenue [Line Items]
Revenues									984.9	977.2	798.9
Consumables
Disaggregation of Revenue [Line Items]
Revenues									1,786.4	1,666.7	1,739.1
Service
Disaggregation of Revenue [Line Items]
Revenues									568.3	551.8	484.2
Other
Disaggregation of Revenue [Line Items]
Revenues									$ 27.7	$ 22.2	$ 36.6

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+ References

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
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-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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