Supplemental Financial Statement Data - Schedule of Warranty Accrual (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
Dec. 27, 2024	Dec. 29, 2023	Jun. 28, 2024	Jun. 30, 2023	Jul. 01, 2022
Movement in Standard Product Warranty Accrual [Roll Forward]
Warranty accrual, beginning of period	$ 48	$ 42	$ 42
Charges to operations	9	15
Utilization	(17)	(17)
Changes in estimate related to pre-existing warranties	4	3
Warranty accrual, end of period	44	43	48	$ 42
The Flash Business of Western Digital Corporation [Member]
Movement in Standard Product Warranty Accrual [Roll Forward]
Warranty accrual, beginning of period	$ 48	$ 42	42	52	$ 48
Charges to operations			28	30	35
Utilization			(34)	(26)	(19)
Changes in estimate related to pre-existing warranties			12	(14)	(12)
Warranty accrual, end of period			$ 48	$ 42	$ 52

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-8

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (c)(5)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-8

+ Details

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- Definition

Amount of decrease in the standard product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties.

+ References

+ Details

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- Definition

Amount of increase (decrease) in the standard product warranty accrual from changes in estimates attributable to preexisting product warranties. Excludes extended product warranties.

+ References

+ Details

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- Definition

Amount of increase in the standard product warranty accrual from warranties issued. Excludes extended product warranties.

+ References

+ Details

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