Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Jan. 01, 2019
Allowance for Doubtful Accounts Receivable, Current $ 18 $ 20    
Provision for Doubtful Accounts 56 68 $ 57  
Accounts Receivable, Allowance for Credit Loss, Writeoff 59 60 55  
Debt and equity securities 353 1,195    
Property, Plant and Equipment, Gross 3,780 3,765   $ 3,394
Depreciation 271 251 $ 230  
Interest Costs Capitalized 17 12    
Liberty Sirius XM Group        
Property, Plant and Equipment, Gross 2,686 2,450    
Braves Group        
Property, Plant and Equipment, Gross 923 1,137    
Formula One Group        
Property, Plant and Equipment, Gross 171 178    
Land        
Property, Plant and Equipment, Gross 138 183    
Building and Improvements        
Property, Plant and Equipment, Gross 783 905    
Support Equipment        
Property, Plant and Equipment, Gross $ 630 553    
Satellite system        
Property, Plant and Equipment, Useful Life 15 years      
Property, Plant and Equipment, Gross $ 1,694 1,679    
Construction in Progress        
Property, Plant and Equipment, Gross $ 535 $ 445    
Minimum | Building and Improvements        
Property, Plant and Equipment, Useful Life 10 years      
Minimum | Support Equipment        
Property, Plant and Equipment, Useful Life 3 years      
Maximum | Building and Improvements        
Property, Plant and Equipment, Useful Life 40 years      
Maximum | Support Equipment        
Property, Plant and Equipment, Useful Life 20 years