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Revenue Accounting for Contracts - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 02, 2021	Jun. 26, 2020	Jul. 02, 2021	Jun. 26, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 3,576,436	$ 3,260,057	$ 10,506,144	$ 10,047,286
United States
Disaggregation of Revenue [Line Items]
Revenues	2,364,034	2,472,091	7,295,818	7,548,192
Europe
Disaggregation of Revenue [Line Items]
Revenues	881,676	504,201	2,277,670	1,662,104
Canada
Disaggregation of Revenue [Line Items]
Revenues	57,866	56,954	167,181	164,601
Asia
Disaggregation of Revenue [Line Items]
Revenues	28,309	27,995	84,364	90,889
India
Disaggregation of Revenue [Line Items]
Revenues	18,915	16,465	49,926	33,229
Australia and New Zealand
Disaggregation of Revenue [Line Items]
Revenues	174,828	130,133	472,013	378,178
Middle East and Africa
Disaggregation of Revenue [Line Items]
Revenues	$ 50,808	$ 52,218	$ 159,172	$ 170,093

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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