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Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Number of shares of investment owned.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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Term of warranty or group of similar warranties, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Useful life of property, plant, and equipment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details)				12 Months Ended
	Feb. 18, 2026 shares	Jun. 09, 2025 shares	Feb. 21, 2025 USD ($) shares	Jul. 03, 2026 USD ($)	Jun. 27, 2025 USD ($)	Jun. 28, 2024 USD ($)	Mar. 19, 2026 shares	Feb. 22, 2025 shares
Noncontrolling Interest [Line Items]
Goodwill impairment				$ 0	$ 1,830,000,000	$ 0
Advertising costs				55,000,000	29,000,000	$ 31,000,000
Foreign exchange contracts
Noncontrolling Interest [Line Items]
Notional amount				$ 4,200,000,000	$ 2,500,000,000
Product Warranty Up To 10 Years Or More
Noncontrolling Interest [Line Items]
Warranty term				10 years
Minimum
Noncontrolling Interest [Line Items]
Warranty term				1 year
Minimum \| RSUs
Noncontrolling Interest [Line Items]
Vesting period				2 years
Minimum \| Buildings and improvements
Noncontrolling Interest [Line Items]
Useful life (in years)				15 years
Minimum \| Furniture and fixtures
Noncontrolling Interest [Line Items]
Useful life (in years)				2 years
Minimum \| Machinery and equipment
Noncontrolling Interest [Line Items]
Useful life (in years)				2 years
Minimum \| Computer equipment and software
Noncontrolling Interest [Line Items]
Useful life (in years)				2 years
Maximum
Noncontrolling Interest [Line Items]
Warranty term				5 years
Maximum \| RSUs
Noncontrolling Interest [Line Items]
Vesting period				4 years
Maximum \| Buildings and improvements
Noncontrolling Interest [Line Items]
Useful life (in years)				30 years
Maximum \| Furniture and fixtures
Noncontrolling Interest [Line Items]
Useful life (in years)				7 years
Maximum \| Machinery and equipment
Noncontrolling Interest [Line Items]
Useful life (in years)				7 years
Maximum \| Computer equipment and software
Noncontrolling Interest [Line Items]
Useful life (in years)				7 years
Western Digital Corporation
Noncontrolling Interest [Line Items]
Dividends paid			$ 1,500,000,000
Revolving Credit Facility \| Line of Credit
Noncontrolling Interest [Line Items]
Maximum borrowing capacity			1,500,000,000
Term B Loan \| Line of Credit
Noncontrolling Interest [Line Items]
Maximum borrowing capacity			$ 2,000,000,000.0
Western Digital Corporation
Noncontrolling Interest [Line Items]
Distribution of shares (in shares) \| shares			116,035,464
Percent distribution of shares			80.10%
Right to receive per share ratio			0.33
Western Digital Corporation \| Sandisk Corporation
Noncontrolling Interest [Line Items]
Number of shares sold (in shares) \| shares	5,821,135	21,314,768
Percentage disposed		14.60%
Western Digital Corporation \| Sandisk Corporation
Noncontrolling Interest [Line Items]
Investment (in shares) \| shares							1,691,884	28,827,787
Ownership percentage								19.90%