Related Parties and Related Commitments and Contingencies - Additional Information (Details) - Related Party - USD ($)	3 Months Ended		6 Months Ended
	Dec. 27, 2024	Dec. 29, 2023	Dec. 27, 2024	Dec. 29, 2023	Jun. 28, 2024
Related Party Transaction [Line Items]
Accounts payable	$ 369,000,000		$ 369,000,000		$ 313,000,000
Investment funding commitments, percentage	50.00%		50.00%
Manufacturing capacity percent operating	100.00%		100.00%
Costs incurred associated with reduction in utilization	$ 0	$ 107,000,000	$ 0	$ 249,000,000
Flash Ventures
Related Party Transaction [Line Items]
Payments for equity method investments	1,100,000,000	$ 800,000,000	2,000,000,000.0	$ 1,800,000,000
Accounts payable	252,000,000		252,000,000		$ 313,000,000
K1, K2, And Y7 Facilities | Future Building Depreciation Payments
Related Party Transaction [Line Items]
Other commitment	944,000,000		944,000,000
K1, K2, And Y7 Facilities | Future Building Depreciation Payments | Other current assets
Related Party Transaction [Line Items]
Other commitment	124,000,000		124,000,000
K1, K2, And Y7 Facilities | Future Building Depreciation Payments | Other noncurrent assets
Related Party Transaction [Line Items]
Other commitment	$ 840,000,000		$ 840,000,000
Flash Ventures | Future Building Depreciation Payments
Related Party Transaction [Line Items]
Other Commitment, Exchange Rate	157.86		157.86
Other commitment	$ 303,000,000		$ 303,000,000
To be paid remainder of fiscal year	60,000,000		60,000,000
To be paid year one	30,000,000		30,000,000
To be paid year two	111,000,000		111,000,000
To be paid year three	89,000,000		89,000,000
To be paid year four	$ 13,000,000		13,000,000
Payments for building depreciation			$ 107,000,000
Western Digital Corp | Minimum
Related Party Transaction [Line Items]
Investment funding commitments, percentage	49.90%		49.90%
Western Digital Corp | Maximum
Related Party Transaction [Line Items]
Investment funding commitments, percentage	50.00%		50.00%