v3.19.3.a.u2
Borrowings - Additional Information (Detail)
€ in Millions
1 Months Ended 12 Months Ended
May 06, 2015
USD ($)
Dec. 31, 2019
USD ($)
Apr. 30, 2019
USD ($)
Apr. 30, 2017
USD ($)
Mar. 31, 2017
USD ($)
Mar. 31, 2014
USD ($)
May 31, 2012
USD ($)
May 31, 2011
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2019
EUR (€)
May 06, 2015
EUR (€)
Debt Instrument [Line Items]                          
Borrowings   $ 4,955,000,000             $ 4,955,000,000 $ 4,979,000,000      
Fair Value   5,254,000,000             5,254,000,000 5,000,000,000      
Debt instrument, aggregate principal amount   4,986,000,000             4,986,000,000        
Repayments of long-term debt                 1,000,000,000   $ 700,000,000    
Gain (loss) from net investment hedging, net of tax                 11,000,000 30,000,000 (64,000,000)    
Gain (loss) from net investment hedging, tax expense (benefit)                 3,000,000 10,000,000 (38,000,000)    
Other Comprehensive Income [Member]                          
Debt Instrument [Line Items]                          
Amount of ineffectiveness on net investment hedges                 $ 0 $ 0 $ 0    
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member]                          
Debt Instrument [Line Items]                          
Debt offering designated as net investment hedge to offset its currency exposure | €                       € 700  
Unsecured Debt 2027 Notes [Member]                          
Debt Instrument [Line Items]                          
Debt instrument, aggregate principal amount         $ 700,000,000                
Debt instrument, interest rate         3.20%                
Debt instrument, maturity date         Mar. 15, 2027                
Debt instrument, Approximate annual interest expense         $ 22,000,000                
Debt instrument, payment terms                 Interest is payable semi-annually on March 15 and September 15 of each year        
Unsecured Debt 2024 Notes [Member]                          
Debt Instrument [Line Items]                          
Debt instrument, aggregate principal amount           $ 1,000,000,000              
Debt instrument, interest rate           3.50%              
Debt instrument, maturity date           Mar. 18, 2024              
Debt instrument, Approximate annual interest expense           $ 35,000,000              
Debt instrument, payment terms                 Interest is payable semi-annually in arrears on March 18 and September 18 of each year        
Unsecured Unsubordinated Notes [Member]                          
Debt Instrument [Line Items]                          
Debt instrument, aggregate principal amount             $ 1,500,000,000 $ 1,500,000,000          
Unsecured Debt 2015 Notes [Member]                          
Debt Instrument [Line Items]                          
Debt instrument, aggregate principal amount             $ 750,000,000            
Debt instrument, interest rate             1.375%            
Unsecured Debt 2022 Notes [Member]                          
Debt Instrument [Line Items]                          
Debt instrument, aggregate principal amount             $ 750,000,000            
Debt instrument, interest rate             3.375%            
Debt instrument, Approximate annual interest expense             $ 25,000,000            
Debt instrument, payment terms                 is payable semi-annually on June 1 and December 1 of each year        
Unsecured Debt 2013 [Member]                          
Debt Instrument [Line Items]                          
Debt instrument, aggregate principal amount               750,000,000          
Unsecured Notes Due in 2021 [Member]                          
Debt Instrument [Line Items]                          
Debt instrument, aggregate principal amount               $ 750,000,000          
Debt instrument, interest rate               4.25%          
Debt instrument, Approximate annual interest expense               $ 32,000,000          
Debt instrument, payment terms                 is payable semi-annually on May 24 and November 24 of each year        
Commercial Paper [Member]                          
Debt Instrument [Line Items]                          
Maximum amount available under facility   4,000,000,000             $ 4,000,000,000        
Amount outstanding under credit facility   0             0        
2019 Revolving Credit Facility [Member]                          
Debt Instrument [Line Items]                          
Unsecured revolving credit facility   4,000,000,000             4,000,000,000        
Additional amount available, subject to lender credit approval                 1,000,000,000        
Maximum amount available under facility   5,000,000,000             5,000,000,000        
Amount outstanding under credit facility   0             $ 0        
Extended debt instrument maturity date                 2024-03        
Line of credit facility, covenant terms                 The 2019 credit facility requires the Company not to exceed a maximum leverage ratio (ratio of net debt to EBITDA, where net debt equals total debt less unrestricted cash) of 3 to 1        
Line of credit facility, covenant compliance                 satisfied with a ratio of less than 1 to 1        
3.25% Notes due 2029 [Member]                          
Debt Instrument [Line Items]                          
Borrowings   986,000,000             $ 986,000,000        
Fair Value   1,068,000,000             1,068,000,000        
Debt instrument, aggregate principal amount   $ 1,000,000,000 $ 1,000,000,000           $ 1,000,000,000        
Debt instrument, interest rate     3.25%                    
Debt instrument, maturity date     Apr. 30, 2029                    
Debt instrument, Approximate annual interest expense     $ 33,000,000                    
Debt instrument, payment terms                 Interest is payable semi-annually on April 30 and October 30 of each year, which commenced on October 30, 2019        
5.00% Notes due 2019 [Member]                          
Debt Instrument [Line Items]                          
Debt instrument, interest rate   5.00%             5.00%     5.00%  
Repayments of long-term debt   $ 1,000,000,000                      
6.25% Notes due 2017 [Member]                          
Debt Instrument [Line Items]                          
Debt instrument, interest rate       6.25%                  
Repayments of long-term debt       $ 700,000,000                  
Long-term debt, maturity date       2017-09                  
2025 Notes [Member]                          
Debt Instrument [Line Items]                          
Borrowings   781,000,000             $ 781,000,000        
Fair Value   832,000,000             832,000,000        
Debt instrument, aggregate principal amount   $ 786,000,000             $ 786,000,000       € 700
Debt instrument, interest rate                         1.25%
Debt instrument, maturity date May 06, 2025                        
Debt instrument, Approximate annual interest expense $ 10,000,000                        
Debt instrument, payment terms                 annually on May 6 of each year