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Summary of Significant Accounting Policies - Additional Information (Detail)
$ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
reportable_operating_segment
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Jan. 01, 2019
USD ($)
Accounting Policies [Abstract]        
Allowance for doubtful accounts $ 36.0 $ 33.2    
Capitalized pre-production E&D costs 211.2 230.6    
Capitalized pre-production tooling costs related to customer-owned tools 231.6 198.1    
Cash collected related to E&D and tooling costs 408.3 487.5    
Depreciation expense 447.6 433.0 $ 380.1  
Capital expenditures recorded in accounts payable 131.6 156.2 119.7  
Restructuring Cost and Reserve [Line Items]        
Restructuring charges 194.2 88.0 70.9  
Fixed asset impairment charges   1.4 2.1  
Other long-term assets 527.0      
Lease obligations under operating leases $ 536.3      
Percentage of net sales 1.00%      
Contract liabilities $ 0.0      
Contract liabilities recognized in revenue 0.0      
Engineering and development costs 151.2 153.5 147.9  
Foreign currency transaction losses $ 20.6 14.4 5.1  
Number of reportable operating segments | reportable_operating_segment 2      
Asset impairments        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 9.5 $ 4.7 $ 1.3  
ASU 2016-02        
Restructuring Cost and Reserve [Line Items]        
Other long-term assets       $ 438.1
Lease obligations under operating leases       $ 445.8