Quarterly report pursuant to Section 13 or 15(d)

DEBT - Narrative (Details)

v3.21.1
DEBT - Narrative (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 22, 2020
USD ($)
Sep. 30, 2018
USD ($)
extension
Mar. 31, 2021
USD ($)
Dec. 31, 2019
Dec. 31, 2020
USD ($)
Jun. 30, 2019
USD ($)
Aug. 31, 2018
USD ($)
Debt Instrument [Line Items]              
Aggregate principal amount of debt issued     $ 4,401,400,000   $ 4,402,200,000    
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          
Repayments of revolving credit facility $ 225,000,000.0            
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   400,000,000.0    
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   600,000,000.0    
Debt instrument, term 10 years            
Notes, 2.60%, due December 2024              
Debt Instrument [Line Items]              
Debt instrument, interest rate (as a percent)     2.60%        
Aggregate principal amount of debt issued     $ 750,000,000.0   $ 750,000,000.0    
Commercial paper              
Debt Instrument [Line Items]              
Long-term debt     $ 0