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Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2021	Jan. 03, 2020	Jan. 01, 2021	Jan. 03, 2020
Disaggregation of Revenue [Line Items]
Revenue, net	$ 3,943	$ 4,234	$ 7,865	$ 8,274
Americas
Disaggregation of Revenue [Line Items]
Revenue, net	945	1,296	2,024	2,609
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Revenue, net	725	811	1,354	1,590
Asia
Disaggregation of Revenue [Line Items]
Revenue, net	2,273	2,127	4,487	4,075
Client Devices
Disaggregation of Revenue [Line Items]
Revenue, net	2,131	1,797	4,077	3,413
Data Center Devices & Solutions
Disaggregation of Revenue [Line Items]
Revenue, net	807	1,489	1,936	3,021
Client Solutions
Disaggregation of Revenue [Line Items]
Revenue, net	1,005	948	1,852	1,840
HDD
Disaggregation of Revenue [Line Items]
Revenue, net	1,909	2,396	3,753	4,804
Flash-based
Disaggregation of Revenue [Line Items]
Revenue, net	$ 2,034	$ 1,838	$ 4,112	$ 3,470

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Amount, excluding 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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