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Debt - Additional Information (Detail)
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 30, 2017
USD ($)
Jun. 30, 2017
USD ($)
Mar. 31, 2017
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2017
EUR (€)
Debt Instrument [Line Items]            
Consideration for repurchase of debt     $ 897,000,000      
Loss related to extinguishment of debt/credit facility     27,800,000 $ (32,300,000) $ (47,600,000)  
Debt instrument, unamortized discount (premium) and debt issuance costs, net       68,900,000 $ 80,100,000  
Other comprehensive income (loss), foreign currency transaction and translation gain (loss) arising during period, net of tax       19,700,000    
New Receivables Facility [Member]            
Debt Instrument [Line Items]            
Line of credit facility, maximum borrowing capacity       $ 950,000,000    
Debt Instrument, maturity date       Oct. 01, 2019    
Debt Instrument, Basis Spread on Variable Rate       0.80%    
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage       0.40%    
Revolving Credit Facility [Member]            
Debt Instrument [Line Items]            
Line of credit facility, current borrowing capacity       $ 1,250,000,000    
Revolving Credit Facility [Member] | Letter of Credit [Member]            
Debt Instrument [Line Items]            
Line of credit facility, maximum borrowing capacity       $ 100,000,000    
Tender Offers [Member] | Maximum [Member]            
Debt Instrument [Line Items]            
Debt instrument, repurchased face amount     1,060,000,000      
6.25% Senior Notes Due 2018 [Member]            
Debt Instrument [Line Items]            
Debt instrument, repurchased face amount     $ 63,000,000      
Senior notes rate 6.25%   6.25%   6.25%  
Consideration for repurchase of debt $ 195,000,000          
Loss related to extinguishment of debt/credit facility   $ 4,500,000        
Debt Instrument, face amount $ 187,000,000          
2.60% Senior Notes Due 2019 [Member]            
Debt Instrument [Line Items]            
Debt instrument, repurchased face amount     $ 733,000,000      
Senior notes rate     2.60%   2.60%  
4.70% Senior Notes Due 2020 [Member]            
Debt Instrument [Line Items]            
Debt instrument, repurchased face amount     $ 76,000,000      
Senior notes rate     4.70% 4.70% 4.70% 4.70%
Debt Instrument, face amount       $ 277,000,000    
3.75% Senior Notes Due 2021 [Member]            
Debt Instrument [Line Items]            
Senior notes rate       3.75% 3.75% 3.75%
Debt Instrument, face amount | €           € 300,000,000
Debt Instrument, maturity date       Oct. 01, 2021