Related Parties and Related Commitments and Contingencies - Additional Information (Details) $ in Millions	12 Months Ended
	Jul. 01, 2022 USD ($) entity	Jul. 02, 2021 USD ($)	Jul. 03, 2020 USD ($)
Related Party Transactions [Abstract]
Number of legal entities | entity	3
Depreciation prepayments	$ 290
2023	268
2024	22
Accounts payable to related parties	320	$ 398
Undistributed earnings	$ 43	33
Investment funding commitments	50.00%
Costs incurred with unexpected power outage incident	$ 207		$ 68
Insurance recovery recorded in cost of revenue	$ 7	75
Western Digital Corp | Minimum
Related Party Transactions [Abstract]
Investment funding commitments	49.90%
Western Digital Corp | Maximum
Related Party Transactions [Abstract]
Investment funding commitments	50.00%
Equity Method Investee
Related Party Transactions [Abstract]
Payments for equity method investments	$ 4,700	4,360	$ 3,090
Accounts payable to related parties	$ 320	$ 398
Flash Ventures
Related Party Transactions [Abstract]
Equity method investment, ownership percentage	49.90%
Flash Ventures | Prepayments of Future Depreciation
Related Party Transactions [Abstract]
Other commitment	$ 360
Flash Ventures | Kioxia
Related Party Transactions [Abstract]
Equity method investment, ownership percentage	50.10%
Unis Venture
Related Party Transactions [Abstract]
Equity method investment, ownership percentage	49.00%
Unis Venture | Revenue from Contract with Customer | Product Concentration Risk
Related Party Transactions [Abstract]
Concentration risk, percentage	4.00%	3.00%	1.00%
Unis Venture | Accounts Receivable Benchmark | Product Concentration Risk
Related Party Transactions [Abstract]
Concentration risk, percentage		5.00%
Unis Venture | Unissoft (Wuxi) Group Co Ltd.
Related Party Transactions [Abstract]
Partner's ownership in venture business	51.00%
Kioxia
Related Party Transactions [Abstract]
Equity method investment, ownership percentage	49.90%