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Inventories - Inventories (Detail) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 1,007 $ 843
Work-in-process 264 246
Finished goods 327 311
Tooling and engineering 1,206 1,164
Inventory, net, total $ 2,804 $ 2,564