Quarterly report pursuant to Section 13 or 15(d)

Debt - Schedule of Long-term Debt Instruments (Details)

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Debt - Schedule of Long-term Debt Instruments (Details) - USD ($)
Sep. 30, 2024
Jan. 26, 2024
Dec. 31, 2023
Jun. 30, 2023
Mar. 10, 2023
Apr. 30, 2022
Feb. 28, 2021
Nov. 26, 2019
Debt                
Total $ 12,000,000   $ 15,000,000          
Total debt 10,742,000,000   11,161,000,000          
Less: total current maturities (d) 589,000,000   1,079,000,000          
Less: total deferred financing costs, net 16,000,000   9,000,000          
Total long-term debt $ 10,137,000,000   10,073,000,000          
Senior Notes | 3.75% Convertible Senior Notes                
Debt                
Stated interest rate (as a percent) 3.75%       3.75%      
Principal amount $ 575,000,000       $ 575,000,000      
Carrying value $ 590,000,000   688,000,000          
Senior Notes | 2.75% Exchangeable Senior Debentures                
Debt                
Stated interest rate (as a percent) 2.75%             2.75%
Principal amount $ 585,000,000             $ 604,000,000
Carrying value $ 583,000,000   574,000,000          
Senior Notes | 3.125% Senior Notes Due 2026                
Debt                
Stated interest rate (as a percent) 3.125%              
Principal amount $ 1,000,000,000              
Carrying value $ 995,000,000   994,000,000          
Senior Notes | 5.00% Senior Notes Due 2027                
Debt                
Stated interest rate (as a percent) 5.00%              
Principal amount $ 1,500,000,000              
Carrying value $ 1,495,000,000   1,494,000,000          
Senior Notes | 4.00% Senior Notes Due 2028                
Debt                
Stated interest rate (as a percent) 4.00%              
Principal amount $ 2,000,000,000              
Carrying value $ 1,987,000,000   1,985,000,000          
Senior Notes | 5.500% Senior Notes Due 2029                
Debt                
Stated interest rate (as a percent) 5.50%              
Principal amount $ 1,250,000,000              
Carrying value $ 1,242,000,000   1,241,000,000          
Senior Notes | 4.125% Senior Notes Due 2030                
Debt                
Stated interest rate (as a percent) 4.125%              
Principal amount $ 1,500,000,000              
Carrying value $ 1,490,000,000   1,488,000,000          
Senior Notes | 3.875% Senior Notes Due 2031                
Debt                
Stated interest rate (as a percent) 3.875%              
Principal amount $ 1,500,000,000              
Carrying value 1,488,000,000   1,487,000,000          
Line of Credit | Incremental Term Loan                
Debt                
Principal amount 0 $ 1,100,000,000       $ 500,000,000    
Carrying value 0   500,000,000          
Line of Credit | Incremental Term Loan, September 2024                
Debt                
Principal amount 610,000,000              
Carrying value 610,000,000   0          
Line of Credit | Senior Secured Revolving Credit Facility (the "Credit Facility")                
Debt                
Principal amount 250,000,000              
Carrying value 250,000,000   0          
Line of Credit | Sirius XM Holdings Margin Loan                
Debt                
Principal amount 0           $ 125,000,000  
Carrying value $ 0   $ 695,000,000          
Line of Credit | Sirius XM Holdings Margin Loan | Senior Secured Revolving Credit Facility (the "Credit Facility")                
Debt                
Principal amount       $ 1,075,000,000     $ 875,000,000