Derivative Instruments and Fair Value Measurements - Assets and liabilities recorded at fair value on a recurring basis (Details) - Manufacturing group - USD ($) $ in Millions	6 Months Ended
Jul. 04, 2020	Jan. 04, 2020
Fair value of derivative instruments
Forward exchange contracts maximum maturity period	3 years
Foreign currency exchange contracts
Fair value of derivative instruments
Notional amounts	$ 364	$ 342
Level 2 \| Foreign currency exchange contracts
Fair value of derivative instruments
Derivative Asset, Fair Value	6	2
Derivative Liability, Fair Value	$ 8	$ 2

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Nominal or face amount used to calculate payment on derivative.

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Maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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