Reorganization of Business - Reorganization of Businesses Accruals (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Restructuring Reserve [Roll Forward]
Adjustments	$ (6)
Employee separation costs
Restructuring Reserve [Roll Forward]
January 1, 2019			$ 84
Additional Charges	18	$ 27	30	$ 49
Adjustments		$ (3)	(10)	$ (14)
Amount Used			(28)
June 29, 2019	$ 76		$ 76

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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