Employee Benefits - Components of Plan Benefit Expense Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 03, 2021	Mar. 28, 2020
UNITED STATES \| Pension
Defined Benefit Plan Disclosure [Line Items]
Recognized net (gain) loss	$ (9)	$ 14

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Balance Type:	credit
Period Type:	duration