Composition of Certain Financial Statement Items Inventories (Details) - USD ($) $ in Millions	Jun. 26, 2022	Sep. 26, 2021
Inventory, Net [Abstract]
Raw materials	$ 267	$ 267
Work-in-process	2,778	1,475
Finished goods	2,373	1,486
Inventories	$ 5,418	$ 3,228

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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