Business Segments, Geographic Information, and Concentrations of Risk - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 27, 2024	Dec. 29, 2023	Dec. 27, 2024	Dec. 29, 2023
Segment Reporting Information [Line Items]
Revenue, net	$ 4,285	$ 3,032	$ 8,380	$ 5,782
Gross profit	1,516	492	3,067	591
Stock-based compensation expense			161	149
Total operating expenses	664	702	1,473	1,397
Consolidated gross profit	$ 1,516	$ 492	$ 3,067	$ 591
Gross margin, percentage	35.40%	16.20%	36.60%	10.20%
Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	$ 4,285	$ 3,032	$ 8,380	$ 5,782
Gross profit	1,538	470	3,113	582
Consolidated gross profit	1,538	470	3,113	582
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Stock-based compensation expense	(12)	(13)	(26)	(26)
Amortization of acquired intangible assets	0	(1)	(1)	(1)
Recovery from contamination incident	0	36	0	36
Total operating expenses	(22)	22	(46)	9
Corporate, Non-Segment | Licenses Related To Litigation Matter
Segment Reporting Information [Line Items]
Amortization of acquired intangible assets	$ (10)	$ 0	$ (19)	$ 0
HDD
Segment Reporting Information [Line Items]
Gross margin, percentage	38.60%	24.80%	38.40%	23.90%
HDD | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	$ 2,409	$ 1,367	$ 4,620	$ 2,561
Gross profit	929	339	1,772	612
Consolidated gross profit	$ 929	$ 339	$ 1,772	$ 612
Flash
Segment Reporting Information [Line Items]
Gross margin, percentage	32.50%	7.90%	35.70%	(0.90%)
Flash | Operating Segments
Segment Reporting Information [Line Items]
Revenue, net	$ 1,876	$ 1,665	$ 3,760	$ 3,221
Gross profit	609	131	1,341	(30)
Consolidated gross profit	$ 609	$ 131	$ 1,341	$ (30)