Annual report pursuant to Section 13 and 15(d)

Debt - Braves Holdings Notes (Details)

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Debt - Braves Holdings Notes (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2014
a
Dec. 31, 2017
USD ($)
Debt Instrument [Line Items]      
Long-term Debt $ 13,388   $ 13,954
Ballpark      
Debt Instrument [Line Items]      
Cost of new facility 722    
Braves Holdings      
Debt Instrument [Line Items]      
Area of land acquired (in acres) | a   82  
Long-term Debt $ 494   667
Braves Holdings | Operating Credit Facilities      
Debt Instrument [Line Items]      
Effective interest rate 3.39%    
Long-term Debt $ 17   98
Line of Credit Facility, Maximum Borrowing Capacity $ 185    
Braves Holdings | Senior Secured Notes      
Debt Instrument [Line Items]      
Effective interest rate 3.77%    
Long-term Debt $ 195   200
Braves Holdings | Floating Rate Notes      
Debt Instrument [Line Items]      
Effective interest rate 4.10%    
Long-term Debt $ 70   75
Braves Holdings | Mixed Use Credit Facilities and Loans      
Debt Instrument [Line Items]      
Effective interest rate 4.43%    
Long-term Debt $ 160   200
Line of Credit Facility, Maximum Borrowing Capacity 176    
Braves Holdings | Spring Training Credit Facility      
Debt Instrument [Line Items]      
Long-term Debt     39
Line of Credit Facility, Maximum Borrowing Capacity $ 40    
Braves Holdings | Term Loan | Term Loan      
Debt Instrument [Line Items]      
Effective interest rate 3.97%    
Long-term Debt $ 52   $ 55
Braves Holdings | Ballpark      
Debt Instrument [Line Items]      
Cost of new facility 330    
Cobb Marietta Coliseum And Exhibit Hall Authority | Ballpark      
Debt Instrument [Line Items]      
Cost of new facility $ 392