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Commitments And Contingencies - Product Guarantee (Details) - USD ($)
$ in Millions
6 Months Ended
Jul. 04, 2021
Jun. 28, 2020
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Beginning balance $ 660 $ 619
Warranty expense 45 55
Payments (65) (51)
Adjustments 0 (2)
Ending balance $ 640 $ 621