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Segment Information - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure of operating segments [line items]      
REVENUE $ 5,071.1 $ 5,859.4 $ 6,203.9
Commercial Aviation [member]      
Disclosure of operating segments [line items]      
REVENUE $ 2,358.3 $ 2,771.4 $ 2,916.9
Customer one [member] | Commercial Aviation [member]      
Disclosure of operating segments [line items]      
Percentage of entitys revenue 17.90%    
REVENUE $ 907.2