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Debt - Additional Information (Detail)
€ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Mar. 31, 2020
EUR (€)
Mar. 31, 2020
USD ($)
Mar. 08, 2020
USD ($)
Dec. 31, 2019
Debt Instrument [Line Items]            
Senior notes subject to interest rate adjustment       $ 4,500,000,000    
Increase in interest expense, annualized $ 23,000,000          
Deferred gain (loss) on net investment hedge recorded in AOCL, net of tax $ 9,000,000          
Interest rate change due to downgrade 0.0025          
Total interest rate change 0.0050          
Forecast            
Debt Instrument [Line Items]            
Annual interest expense   $ 17,000,000        
Revolving Credit Facility            
Debt Instrument [Line Items]            
Line of credit facility, maximum borrowing capacity         $ 1,250,000,000  
Proceeds from long-term lines of credit $ 125,000,000          
Revolving Credit Facility | LIBOR            
Debt Instrument [Line Items]            
Borrowing rate margin 1.275%          
4.20% senior notes due 2026            
Debt Instrument [Line Items]            
Interest rate     4.20% 4.20%   4.20%
3.75% senior notes due October 2021            
Debt Instrument [Line Items]            
Debt Instrument, face amount | €     € 300      
Senior notes | 4.20% senior notes due 2026            
Debt Instrument [Line Items]            
Debt Instrument, face amount       $ 15,000,000    
Interest rate     4.20% 4.20%    
Repayments of senior debt $ 15,000,000          
Senior notes | 3.75% senior notes due October 2021            
Debt Instrument [Line Items]            
Interest rate     3.75% 3.75%    
Securitization Facility            
Debt Instrument [Line Items]            
Line of credit facility, maximum borrowing capacity       $ 600,000,000    
Commercial Paper            
Debt Instrument [Line Items]            
Line of credit facility, maximum borrowing capacity         $ 800,000,000