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Related Parties and Related Commitments and Contingencies - Additional Information (Details) $ in Millions	3 Months Ended		12 Months Ended
	Sep. 30, 2022 USD ($) entity	Oct. 01, 2021 USD ($)	Jul. 01, 2022 USD ($)
Guarantor Obligations [Line Items]
Number of legal entities \| entity	3
Accounts payable to related parties	$ 295		$ 320
Investment funding commitments, percentage	50.00%
Depreciation prepayments	$ 203
Remainder of fiscal year	182
Next fiscal year	$ 21
Unis Venture
Guarantor Obligations [Line Items]
Equity method investment, ownership percentage	49.00%
Revenue from Contract with Customer \| Unis Venture \| Product Concentration Risk
Guarantor Obligations [Line Items]
Concentration risk, percentage	3.00%	5.00%
Accounts Receivable Benchmark \| Product Concentration Risk \| Unis Venture
Guarantor Obligations [Line Items]
Concentration risk, percentage	6.00%		5.00%
Unissoft (Wuxi) Group Co Ltd. \| Unis Venture
Guarantor Obligations [Line Items]
Partner's ownership in venture business	51.00%
Western Digital Corp \| Minimum
Guarantor Obligations [Line Items]
Investment funding commitments, percentage	49.90%
Western Digital Corp \| Maximum
Guarantor Obligations [Line Items]
Investment funding commitments, percentage	50.00%
Equity Method Investee
Guarantor Obligations [Line Items]
Investments in flash ventures	$ 1,000	$ 1,200
Accounts payable to related parties	$ 295		$ 320