Annual report [Section 13 and 15(d), not S-K Item 405]

Assets and Liabilities Measured at Fair Value - Realized and Unrealized Gains (Losses) on Financial Instruments (Details)

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Assets and Liabilities Measured at Fair Value - Realized and Unrealized Gains (Losses) on Financial Instruments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Sep. 09, 2024
Assets and Liabilities Measured at Fair Value        
Realized and unrealized gains (losses) on financial instruments, net $ (383) $ (167) $ 524  
Recognition of previously unrealized gains (losses) on debt (6) (34) 14  
Formula One Group        
Assets and Liabilities Measured at Fair Value        
Realized and unrealized gains (losses) on financial instruments, net (120) 42 115  
Recognition of previously unrealized gains (losses) on debt $ (6) 1 14  
Liberty SiriusXM Group        
Assets and Liabilities Measured at Fair Value        
Realized and unrealized gains (losses) on financial instruments, net   $ (59) 396  
1% Cash Convertible Notes Due 2023 | Formula One Group        
Assets and Liabilities Measured at Fair Value        
Debt instrument interest rate (as a percent)   1.00%    
1% Cash Convertible Notes Due 2023 | Liberty SiriusXM Group        
Assets and Liabilities Measured at Fair Value        
Debt instrument interest rate (as a percent) 0.50%      
2.125% Exchangeable Senior Debentures Due 2048 | Liberty SiriusXM Group        
Assets and Liabilities Measured at Fair Value        
Debt instrument interest rate (as a percent)       2.125%
0.5% Exchangeable Senior Debentures due 2050        
Assets and Liabilities Measured at Fair Value        
Debt instrument interest rate (as a percent) 0.50%      
Debt and equity securities        
Assets and Liabilities Measured at Fair Value        
Realized and unrealized gains (losses) on financial instruments, net $ (5) $ 27 (7)  
Foreign currency forward contracts        
Assets and Liabilities Measured at Fair Value        
Realized and unrealized gains (losses) on financial instruments, net (138)      
Debt measured at fair value        
Assets and Liabilities Measured at Fair Value        
Realized and unrealized gains (losses) on financial instruments, net (339) (224) 396  
Gain (loss) on changes in fair value (84) 24 (30)  
Recognition of previously unrealized gains (losses) on debt (2) (27)    
Cumulative amount of gain (loss) in changes in fair value 51      
Other        
Assets and Liabilities Measured at Fair Value        
Realized and unrealized gains (losses) on financial instruments, net (4) 2 14  
Interest Rate Swap        
Assets and Liabilities Measured at Fair Value        
Realized and unrealized gains (losses) on financial instruments, net $ 103 $ 28 $ 121