Inventories (Details) - USD ($) $ in Millions	Dec. 29, 2019	Dec. 30, 2018
Summary of Inventories
Raw materials and supplies	$ 1,117	$ 1,114
Goods in process	1,832	2,109
Finished goods	6,071	5,376
Total inventories (1)	9,020	8,599
Discontinued Operations, Held-for-sale or Disposed of by Sale \| AdvancedSterilizationProducts
Inventory [Line Items]
Disposal Group, Including Discontinued Operation, Inventory, Current		200
Discontinued Operations, Held-for-sale or Disposed of by Sale \| Supply Chain
Inventory [Line Items]
Disposal Group, Including Discontinued Operation, Inventory, Current	$ 100	$ 300

Amount classified as inventory attributable to disposal group, expected to be disposed of within one year or the normal operating cycle, if longer.

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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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Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments.

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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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