Intangible Assets and Goodwill - Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 30, 2019	Mar. 31, 2018	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,971		$ 1,719
Accumulated Amortization	555		489
Intangible Assets And Goodwill
Amortization expense on intangibles	50	$ 41
Finite-Lived Intangible Assets, Future Amortization Expense
2019	205
2020	205
2021	202
2022	200
2023	99
2024	73
Completed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	707		558
Accumulated Amortization	105		92
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2		2
Accumulated Amortization	2		2
Customer-related
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,187		1,085
Accumulated Amortization	414		364
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	75		74
Accumulated Amortization	$ 34		$ 31

Intangible Assets And Goodwil Disclosure [Abstract]

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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