v3.10.0.1
Inventories, Net - Inventories, Net (Detail) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Inventory Disclosure [Abstract]    
Raw materials $ 74 $ 62
Work in process 949 901
Finished goods 256 273
Inventory net $ 1,279 $ 1,236