Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Disaggregation of Revenue [Line Items]
Revenue, net	$ 4,175	$ 3,674	$ 12,449	$ 12,935
Americas
Disaggregation of Revenue [Line Items]
Revenue, net	1,325	1,070	3,934	3,367
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Revenue, net	770	748	2,360	2,394
Asia
Disaggregation of Revenue [Line Items]
Revenue, net	2,080	1,856	6,155	7,174
Client Devices
Disaggregation of Revenue [Line Items]
Revenue, net	1,831	1,625	5,244	6,489
Data Center Devices & Solutions
Disaggregation of Revenue [Line Items]
Revenue, net	1,523	1,245	4,544	3,765
Client Solutions
Disaggregation of Revenue [Line Items]
Revenue, net	821	804	2,661	2,681
Hard disk drives (“HDD”)
Disaggregation of Revenue [Line Items]
Revenue, net	2,114	2,064	6,918	6,618
Flash-based
Disaggregation of Revenue [Line Items]
Revenue, net	$ 2,061	$ 1,610	$ 5,531	$ 6,317