Related Parties and Related Commitments and Contingencies - Additional Information (Details) $ in Millions	12 Months Ended
	Jun. 28, 2024 USD ($) entity ¥ / $	Jun. 30, 2023 USD ($)	Jul. 01, 2022 USD ($)
Related Party Transactions [Abstract]
Number of legal entities | entity	3
Undistributed earnings	$ 158	$ 219
Investment funding commitments	50.00%
Percent of total manufacturing capacity in operation	100.00%
Costs incurred associated with reduction in utilization	$ 249	286
Costs incurred with unexpected power outage incident			$ 207
Insurance recovery recorded in cost of revenue	$ 36
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	$ 3,350	4,200	$ 4,700
Accounts payable	$ 313	$ 292
Kioxia
Related Party Transactions [Abstract]
Equity method investment, ownership percentage	49.90%
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	$ 610
Japanese yen to U.S. dollar exchange rate | ¥ / $	160.44
To be paid year one	$ 372
To be paid year two	29
To be paid year three	109
To be paid year four	87
To be paid year five	13
Payments for building depreciation	$ 290
Flash Ventures | Kioxia
Related Party Transactions [Abstract]
Equity method investment, ownership percentage	50.10%
K1, K2, And Y7 Facilities | Prepayments of Future Depreciation
Related Party Transactions [Abstract]
Other commitment	$ 523
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	3.00%	3.00%	4.00%
Unis Venture | Accounts Receivable Benchmark | Product Concentration Risk
Related Party Transactions [Abstract]
Concentration risk, percentage	7.00%	8.00%
Unis Venture | Unissoft (Wuxi) Group Co Ltd.
Related Party Transactions [Abstract]
Partner's ownership in venture business	51.00%