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Inventories (Details) - USD ($)
$ in Millions
Jul. 01, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Raw material $ 154 $ 172
Work in process 2 1
Finished goods 339 254
Inventories, gross 495 427
Inventory reserves (81) (82)
Inventories, net $ 414 $ 345