Segment Information - Goodwill Rollforward (Details) $ in Millions	3 Months Ended
	Oct. 01, 2021 USD ($)
Segment Reporting Information [Line Items]
Balance at July 3, 2021	$ 10,066
Foreign currency translation adjustment	0
Balance at October 1, 2021	10,066
HDD
Segment Reporting Information [Line Items]
Balance at July 3, 2021	4,328
Foreign currency translation adjustment	0
Balance at October 1, 2021	4,328
Flash
Segment Reporting Information [Line Items]
Balance at July 3, 2021	5,738
Foreign currency translation adjustment	0
Balance at October 1, 2021	$ 5,738