Fair Value Measurements - Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 26, 2020	Dec. 31, 2019
Assets:
Common stock	$ 17	$ 25
Recurring basis \| Estimate of Fair Value, Fair Value Disclosure \| Common stock
Assets:
Common stock	17	25
Recurring basis \| Estimate of Fair Value, Fair Value Disclosure \| Foreign exchange contracts
Assets:
Foreign exchange derivative contracts	1	4
Liabilities:
Foreign exchange derivative contracts	9	5
Recurring basis \| Level 1 \| Common stock
Assets:
Common stock	17	25
Recurring basis \| Level 1 \| Foreign exchange contracts
Assets:
Foreign exchange derivative contracts	0	0
Liabilities:
Foreign exchange derivative contracts	0	0
Recurring basis \| Level 2 \| Common stock
Assets:
Common stock	0	0
Recurring basis \| Level 2 \| Foreign exchange contracts
Assets:
Foreign exchange derivative contracts	1	4
Liabilities:
Foreign exchange derivative contracts	$ 9	$ 5

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Fair Value Liabilities Measured On Recurring Basis [Abstract]

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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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Fair value, before effects of master netting arrangements, of a financial liability or 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 liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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