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Long-Term Debt - Schedule of Long Term Debt (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Long-term debt    
Long-term debt, gross $ 8,152  
Unamortized premiums, net 3 $ 34
Unamortized debt issuance costs (50) (57)
Total long-term debt 8,105 10,422
Less current maturities (26) (26)
Long-term debt, excluding current maturities 8,079 10,396
Senior notes | Senior Notes Maturing 2027-2029    
Long-term debt    
Long-term debt, gross $ 1,500 1,500
Senior notes | Senior Notes Maturing 2027-2029 | Minimum    
Long-term debt    
Stated interest rate 3.40%  
Senior notes | Senior Notes Maturing 2027-2029 | Maximum    
Long-term debt    
Stated interest rate 3.875%  
Senior notes | Senior Notes Maturing 2027-2029    
Long-term debt    
Long-term debt, gross $ 3,940 5,515
Senior notes | Senior Notes Maturing 2027-2029 | Minimum    
Long-term debt    
Stated interest rate 3.625%  
Senior notes | Senior Notes Maturing 2027-2029 | Maximum    
Long-term debt    
Stated interest rate 4.625%  
Term loan | Tranche B 2027 Term Loan    
Long-term debt    
Long-term debt, gross $ 2,411 $ 3,111
Effective percentage 4.865% 1.854%
Term loan | Tranche B 2027 Term Loan | LIBOR    
Long-term debt    
Basis spread on variable rate 1.75%  
Finance leases and other obligations    
Long-term debt    
Long-term debt, gross $ 301 $ 319