Quarterly report pursuant to Section 13 or 15(d)

DEBT - Narrative (Details)

v3.20.2
DEBT - Narrative (Details)
1 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Apr. 22, 2020
USD ($)
Nov. 15, 2019
USD ($)
Sep. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2019
USD ($)
extension
Aug. 31, 2018
USD ($)
Debt Instrument [Line Items]                
Aggregate principal amount of debt issued         $ 4,403,400,000   $ 3,403,100,000  
Line of credit facility, potential maximum borrowing capacity     $ 1,600,000,000          
Letters of credit outstanding, amount         $ 700,000      
Commercial paper notes       $ 1,100,000,000        
Maximum                
Debt Instrument [Line Items]                
Debt instrument, term         1 year      
Commercial paper, maturity period range       397 days        
Revolving Credit Facility                
Debt Instrument [Line Items]                
Debt instrument, term     5 years          
Credit facility borrowing capacity     $ 1,100,000,000         $ 900,000,000.0
Line of credit, maximum number of extensions | extension             2  
Line of credit facility, expiration date, extension period     1 year          
Outstanding borrowings         $ 0      
Line of credit facility, available for borrowing         1,100,000,000      
Commercial paper                
Debt Instrument [Line Items]                
Outstanding borrowings         $ 0      
Notes, 2.60%, due December 2025                
Debt Instrument [Line Items]                
Debt instrument, interest rate (as a percent) 2.60%       2.60%      
Aggregate principal amount of debt issued $ 400,000,000.0       $ 400,000,000.0   $ 0  
Debt instrument, term 5 years              
Notes, 3.1%, due May 2030                
Debt Instrument [Line Items]                
Debt instrument, interest rate (as a percent) 3.10%       3.10%      
Aggregate principal amount of debt issued $ 600,000,000.0       $ 600,000,000.0   0  
Debt instrument, term 10 years              
Notes, 2.60%, due December 2024                
Debt Instrument [Line Items]                
Debt instrument, interest rate (as a percent)   2.60%     2.60%      
Aggregate principal amount of debt issued   $ 750,000,000.0     $ 750,000,000.0   $ 750,000,000.0  
Debt instrument, term   5 years            
Commercial paper                
Debt Instrument [Line Items]                
Long-term debt         0      
Receivables Securitization Facility                
Debt Instrument [Line Items]                
Debt instrument, term           2 years    
Credit facility borrowing capacity           $ 225,000,000.0    
Outstanding borrowings         0      
Collateral amount         $ 313,500,000