Other Financial Data - Property, Plant And Equipment, Net (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 30, 2019	Mar. 31, 2018	Dec. 31, 2018
Property, Plant and Equipment, Net [Abstract]
Land	$ 10		$ 10
Leasehold improvements	372		362
Machinery and equipment	1,903		1,886
Property, plant and equipment, gross	2,285		2,258
Less accumulated depreciation	(1,348)		(1,363)
Property, plant and equipment, net	937		$ 895
Depreciation expense	$ 45	$ 41

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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- Definition

Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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