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LONG-TERM DEBT - Additional Information (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2022
USD ($)
Sep. 30, 2021
USD ($)
Aug. 31, 2021
USD ($)
Mar. 31, 2021
USD ($)
Sep. 30, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Jan. 31, 2021
Debt Instrument [Line Items]                    
Loss on extinguishment of debt         $ 164,000,000 $ 0 $ 164,000,000 $ 0 $ 0  
Maximum aggregate borrowings under credit facility (up to)             4,500,000,000      
Outstanding borrowings           $ 900,000,000 1,050,000,000 900,000,000    
Cash paid for interest, net of amounts capitalized             391,000,000 $ 377,000,000 $ 348,000,000  
Series N Notes, interest rate of 3.1%, face amount of $400, redeemed August 9, 2021 (effective interest rate of 3.4%)                    
Debt Instrument [Line Items]                    
Debt retired     $ 400,000,000              
Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Borrowings under credit agreement             1,700,000,000      
Repayments under credit agreement             1,500,000,000      
Outstanding borrowings             $ 1,100,000,000      
Senior Notes | Series Q Notes, interest rate of 2.3%, face amount of $399, matured January 15, 2022 (effective interest rate of 2.5%)                    
Debt Instrument [Line Items]                    
Interest rate             2.30%      
Face amount             $ 399,000,000      
Senior Notes | Series Q Notes, interest rate of 2.3%, face amount of $399, matured January 15, 2022 (effective interest rate of 2.5%) | Subsequent Event                    
Debt Instrument [Line Items]                    
Debt retired $ 404,000,000                  
Senior Notes | Series EE Notes, interest rate of 5.8%, face amount of $600, maturing May 1, 2025 (effective interest rate of 6.0%)                    
Debt Instrument [Line Items]                    
Debt retired   $ 1,000,000,000                
Interest rate   5.75%     5.75%   5.80%      
Face amount             $ 600,000,000      
Senior Notes | Series II Notes, interest rate of 2.8%, face amount of $700, maturing October 15, 2033 (effective interest rate of 2.8%)                    
Debt Instrument [Line Items]                    
Interest rate   2.75%     2.75%   2.80%      
Face amount   $ 700,000,000     $ 700,000,000   $ 700,000,000      
Net proceeds   $ 693,000,000                
Senior Notes | Series N Notes, interest rate of 3.1%, face amount of $400, redeemed August 9, 2021 (effective interest rate of 3.4%)                    
Debt Instrument [Line Items]                    
Interest rate             3.10%      
Face amount             $ 400,000,000      
Senior Notes | Series HH Notes, interest rate of 2.9%, face amount of $1,100, maturing April 15, 2031 (effective interest rate of 3.0%)                    
Debt Instrument [Line Items]                    
Interest rate       2.85%     2.90%      
Face amount       $ 1,100,000,000     $ 1,100,000,000      
Net proceeds       $ 1,089,000,000.000            
Line of Credit | Revolving Credit Facility | Maximum                    
Debt Instrument [Line Items]                    
Maximum leverage ratio                   5.50
Line of Credit | Revolving Credit Facility | Minimum                    
Debt Instrument [Line Items]                    
Maximum leverage ratio                   4.00