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Goodwill - Goodwill by Segment (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Goodwill [Line Items]    
Goodwill, Beginning balance $ 1,923 $ 1,344
Acquisitions 1 615
Foreign exchange and other 175 (36)
Goodwill, Ending balance 2,099 1,923
North America [Member]    
Goodwill [Line Items]    
Goodwill, Beginning balance 595 590
Foreign exchange and other 17 5
Goodwill, Ending balance 612 595
Europe [Member]    
Goodwill [Line Items]    
Goodwill, Beginning balance 1,116 525
Acquisitions 1 620
Foreign exchange and other 147 (29)
Goodwill, Ending balance 1,264 1,116
Asia [Member]    
Goodwill [Line Items]    
Goodwill, Beginning balance 212 229
Acquisitions   (5)
Foreign exchange and other 11 (12)
Goodwill, Ending balance $ 223 $ 212