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Percent of commitment by the Company to fund a venture's investment in situations where the venture's sales are insufficient to cover the investments.

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Notes Payable, Net

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Other Commitment, Exchange Rate

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Tax Liability, Indemnification

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Transfers In (Transfers Out) From Parent, Stockholders' Equity

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Amount of commitment classified as other to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of commitment classified as other to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of commitment classified as other to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of commitment classified as other to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of commitment classified as other to be paid in remainder of current fiscal year.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Amount of transactions with related party during the financial reporting period.

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Related Parties and Related Commitments and Contingencies - Additional Information (Details) - USD ($)	3 Months Ended						9 Months Ended
	Mar. 28, 2025	Dec. 27, 2024	Sep. 27, 2024	Mar. 29, 2024	Dec. 29, 2023	Sep. 29, 2023	Mar. 28, 2025	Mar. 29, 2024	Feb. 21, 2025	Jun. 28, 2024
Related Party Transaction [Line Items]
Net transfers to Western Digital Corporation, including spin-off-related adjustments	$ (1,076,000,000)	$ (92,000,000)	$ 583,000,000	$ 63,000,000	$ 152,000,000	$ 19,000,000	$ (10,000,000)
Tax indemnification liability	110,000,000						110,000,000			$ 0
Related Party
Related Party Transaction [Line Items]
Accounts payable	$ 395,000,000						$ 395,000,000			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	$ 24,000,000			0			$ 24,000,000	$ 249,000,000
Repayments of debt							6,000,000
Net transfers to Western Digital Corporation, including spin-off-related adjustments							(585,000,000)	234,000,000
Tax indemnification liability	2,000,000						2,000,000		$ 112,000,000
Notes payable	550,000,000						550,000,000
Related Party \| WDC Subsidiaries
Related Party Transaction [Line Items]
Notes payable	553,000,000						553,000,000
Related Party \| Research And Development Commitments
Related Party Transaction [Line Items]
Related party transaction	40,000,000
Related Party \| Transition Services Agreement Expenses
Related Party Transaction [Line Items]
Related party transaction	2,000,000
Related Party \| Transition Services Agreement Expenses, Next Twelve Months
Related Party Transaction [Line Items]
Related party transaction							10,000,000
Related Party \| Flash Ventures
Related Party Transaction [Line Items]
Payments for equity method investments	900,000,000			$ 700,000,000			2,900,000,000	$ 2,500,000,000
Accounts payable	283,000,000						283,000,000			$ 313,000,000
Related Party \| K1, K2, And Y7 Facilities \| Future Building Depreciation Payments
Related Party Transaction [Line Items]
Other commitment	938,000,000						938,000,000
Related Party \| K1, K2, And Y7 Facilities \| Future Building Depreciation Payments \| Other current assets
Related Party Transaction [Line Items]
Other commitment	127,000,000						127,000,000
Related Party \| K1, K2, And Y7 Facilities \| Future Building Depreciation Payments \| Other noncurrent assets
Related Party Transaction [Line Items]
Other commitment	$ 811,000,000						$ 811,000,000
Related Party \| Flash Ventures \| Future Building Depreciation Payments
Related Party Transaction [Line Items]
Exchange rate	150.43						150.43
Other commitment	$ 292,000,000						$ 292,000,000
To be paid remainder of fiscal year	39,000,000						39,000,000
To be paid year one	31,000,000						31,000,000
To be paid year two	116,000,000						116,000,000
To be paid year three	93,000,000						93,000,000
To be paid year four	$ 13,000,000						13,000,000
Related party transaction							$ 263,000,000
Related Party \| Minimum
Related Party Transaction [Line Items]
Investment funding commitments, percentage	49.90%						49.90%
Related Party \| Maximum
Related Party Transaction [Line Items]
Investment funding commitments, percentage	50.00%						50.00%