CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Jun. 27, 2025	Jun. 28, 2024	Jun. 30, 2023
Cash flows from operating activities
Net Income (Loss)	$ (1,641,000,000)	$ (672,000,000)	$ (2,143,000,000)
Adjustments to reconcile net loss to net cash provided by (used in) operations:
Depreciation and amortization	163,000,000	224,000,000	448,000,000
Stock-based compensation	182,000,000	149,000,000	165,000,000
Goodwill impairment	1,830,000,000	0	671,000,000
Deferred income taxes	(12,000,000)	(16,000,000)	(81,000,000)
Asset Impairment	0	4,000,000	1,000,000
Gain on disposal of assets	(1,000,000)	(60,000,000)	0
Non-cash portion of impairment of cost method investments	1,000,000	0	0
Unrealized foreign exchange (gain) loss	(25,000,000)	13,000,000	(37,000,000)
Gain on business divestiture	(34,000,000)	0	0
Amortization of debt issuance costs and discounts	3,000,000	0	0
Equity loss in investees, net of dividends received	74,000,000	49,000,000	(45,000,000)
Gain on sale of investments	0	(1,000,000)	(3,000,000)
Other non-cash operating activities, net	23,000,000	87,000,000	114,000,000
Settlement of accrued interest on Notes due to Western Digital Corporation	(99,000,000)	0	0
Changes in:
Accounts receivable, net	(100,000,000)	(395,000,000)	750,000,000
Inventories	(160,000,000)	314,000,000	(277,000,000)
Accounts payable	93,000,000	32,000,000	(124,000,000)
Accounts payable to related parties	(23,000,000)	21,000,000	(23,000,000)
Accrued expenses	13,000,000	(51,000,000)	(104,000,000)
Accrued compensation	21,000,000	99,000,000	(56,000,000)
Other assets and liabilities, net	(224,000,000)	(106,000,000)	31,000,000
Net cash provided by (used in) operating activities	84,000,000	(309,000,000)	(713,000,000)
Cash flows from investing activities
Purchases of property, plant and equipment	(204,000,000)	(166,000,000)	(219,000,000)
Proceeds from the sale of property, plant and equipment	0	137,000,000	0
Proceeds from dispositions of business	401,000,000	0	0
Notes receivable issuances to Flash Ventures	(333,000,000)	(243,000,000)	(627,000,000)
Notes receivable proceeds from Flash Ventures	515,000,000	482,000,000	641,000,000
Distributions from Flash Ventures	176,000,000	0	0
Strategic investments and other, net	1,000,000	0	16,000,000
Net cash provided by (used in) investing activities	556,000,000	210,000,000	(189,000,000)
Cash flows from financing activities
Issuance of stock under employee stock plans	5,000,000	0	0
Taxes paid on vested stock awards under employee stock plans	(13,000,000)	0	0
Proceeds from debt	1,970,000,000	0	0
Repayments of debt	(100,000,000)	0	0
Debt issuance costs	(32,000,000)	0	0
Proceeds from borrowings on Notes due to Western Digital Corporation	550,000,000	0	54,000,000
Proceeds from principal repayments on Notes due from Western Digital Corporation	101,000,000	14,000,000	216,000,000
Repayments of principal on Notes due to Western Digital Corporation	(76,000,000)	(102,000,000)	(86,000,000)
Transfers from (to) Western Digital Corporation	(1,887,000,000)	394,000,000	676,000,000
Origination of Notes due from Western Digital Corporation	0	(170,000,000)	0
Net cash provided by financing activities	518,000,000	136,000,000	860,000,000
Effect of exchange rate changes on cash	(5,000,000)	(1,000,000)	(1,000,000)
Net increase (decrease) in cash and cash equivalents	1,153,000,000	36,000,000	(43,000,000)
Cash and cash equivalents, beginning of year	328,000,000	292,000,000	335,000,000
Cash and cash equivalents, end of year	1,481,000,000	328,000,000	292,000,000
Supplemental disclosure of cash flow information:
Cash paid for interest	139,000,000	12,000,000	7,000,000
Cash received for interest	2,000,000	10,000,000	12,000,000
Cash paid for income taxes	50,000,000	0	0
Notes due to (from) Western Digital Corporation	1,223,000,000
Notes due to (from) Western Digital Corporation		(113,000,000)	(316,000,000)
Other assets and liabilities, net, from Western Digital Corporation	105,000,000	0	0
Contribution of equity interest in Unis Venture from Western Digital Corporation	61,000,000	0	0
Property, plant and equipment from Western Digital Corporation	27,000,000	11,000,000	18,000,000
Tax balances from (to) Western Digital Corporation	8,000,000	(17,000,000)	(2,000,000)
Tax indemnification liability transferred to Western Digital Corporation	$ (112,000,000)	$ 0	$ 0