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Related Parties and Related Commitments and Contingencies - Schedule of Notes Receivable and Investments in Related Parties (Details) - USD ($) $ in Millions | Dec. 27, 2024 | Jun. 28, 2024 | Jun. 30, 2023
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total notes receivable and investments in Flash Ventures | $ 871 | $ 1,001 |
The Flash Business of Western Digital Corporation [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total notes receivable and investments in Flash Ventures |  | 1,001 | $ 1,411
Flash Ventures |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total notes receivable and investments in Flash Ventures | 871 | 1,001 |
Flash Ventures | The Flash Business of Western Digital Corporation [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Total notes receivable and investments in Flash Ventures |  | 1,001 | 1,411
Flash Partners Ltd |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Investments | 41 | 148 |
Flash Partners Ltd | The Flash Business of Western Digital Corporation [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Investments |  | 148 | 160
Flash Partners Ltd | Related Party |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Notes receivable, related parties | 72 | 1 |
Flash Partners Ltd | Related Party | The Flash Business of Western Digital Corporation [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Notes receivable, related parties |  | 1 | 37
Flash Alliance Ltd |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Investments | 118 | 219 |
Flash Alliance Ltd | The Flash Business of Western Digital Corporation [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Investments |  | 219 | 274
Flash Alliance Ltd | Related Party |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Notes receivable, related parties | 35 | 5 |
Flash Alliance Ltd | Related Party | The Flash Business of Western Digital Corporation [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Notes receivable, related parties |  | 5 | 48
Flash Forward Ltd |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Investments | 129 | 143 |
Flash Forward Ltd | The Flash Business of Western Digital Corporation [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Investments |  | 143 | 183
Flash Forward Ltd | Related Party |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Notes receivable, related parties | $ 476 | 485 |
Flash Forward Ltd | Related Party | The Flash Business of Western Digital Corporation [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Notes receivable, related parties |  | $ 485 | $ 709

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- Definition The total amount of investments in joint ventures that are intended to be held for an extended period of time (longer than one operating cycle) and loans due from and receivables due from the joint ventures. + References No definition available. + Details
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