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Other Financial Data - Inventories, Net (Details) - USD ($)
$ in Millions
Sep. 26, 2020
Dec. 31, 2019
Inventory, Net [Abstract]    
Finished goods $ 279 $ 209
Work-in-process and production materials 340 374
Inventories, gross 619 583
Less inventory reserves (130) (136)
Inventories, net $ 489 $ 447