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Provisions and Contingent Liabilities - Summary of Provision (Detail) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Jan. 01, 2017
Dec. 31, 2016
Jan. 01, 2016
Disclosure of provisions [line items]          
Provision $ 242.4 $ 260.3   $ 302.8  
Current portion 116.9 124.1 $ 123.8 123.9 $ 89.7
Non-current portion 125.5 136.2 $ 179.0 179.0  
Product warranties [member]          
Disclosure of provisions [line items]          
Provision 98.0 101.1   94.1  
Provisions labor, taxes and civil [member]          
Disclosure of provisions [line items]          
Provision 58.4 54.2   93.1  
Current portion 20.7 21.5      
Non-current portion 37.7 32.7      
Taxes [member]          
Disclosure of provisions [line items]          
Provision 31.4 41.8   28.5  
Post retirement benefits [member]          
Disclosure of provisions [line items]          
Provision 31.7 36.1   46.0  
Other environment related provision [member]          
Disclosure of provisions [line items]          
Provision 2.4 1.8   1.0  
Voluntary redundancy scheme [member]          
Disclosure of provisions [line items]          
Provision       25.3  
Other [member]          
Disclosure of provisions [line items]          
Provision $ 20.5 $ 25.3   $ 14.8