Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Braves Holdings Notes (Details)

v3.7.0.1
Long-Term Debt - Braves Holdings Notes (Details)
shares in Thousands
1 Months Ended 6 Months Ended 12 Months Ended
Aug. 31, 2016
USD ($)
item
Dec. 31, 2015
USD ($)
item
Sep. 30, 2015
USD ($)
Jun. 30, 2017
USD ($)
item
shares
Jun. 30, 2016
USD ($)
Dec. 31, 2014
a
Dec. 31, 2016
USD ($)
Aug. 31, 2015
USD ($)
Debt Instrument [Line Items]                
Outstanding principal       $ 13,305,000,000        
Long-term Debt       13,524,000,000     $ 8,018,000,000  
Borrowings of debt       2,597,000,000 $ 1,453,000,000      
Braves Holdings Mixed Use Facility Credit Facilities Total                
Debt Instrument [Line Items]                
Outstanding principal       $ 131,000,000        
Effective interest rate       3.16%        
Braves Holdings Entertainment Credit Facility                
Debt Instrument [Line Items]                
Outstanding principal       $ 19,000,000        
Effective interest rate       4.23%        
Braves Holdings                
Debt Instrument [Line Items]                
Area of land acquired (in acres) | a           82    
Number of credit facilities | item       2        
Braves Holdings | Braves Holdings Term Loan                
Debt Instrument [Line Items]                
Debt issuance amount $ 130,000,000              
Debt Instrument, Description of Variable Rate Basis     LIBOR          
Effective interest rate       2.80%        
Braves Holdings | Braves Holdings Revolving Credit Facilities Total                
Debt Instrument [Line Items]                
Effective interest rate       2.20%        
Braves Holdings | Braves Holdings Entertainment Credit Facility                
Debt Instrument [Line Items]                
Debt Instrument, Description of Variable Rate Basis LIBOR              
Debt Instrument, Basis Spread on Variable Rate 3.25%              
Line of Credit Facility, Maximum Borrowing Capacity $ 30,000,000              
Extension Options on Credit Facilities | item 1              
Extension option duration 12 months              
Braves Holdings | Revolving Credit Facility                
Debt Instrument [Line Items]                
Line of Credit Facility, Maximum Borrowing Capacity       $ 185,000,000        
Braves Holdings | Revolving Credit Facility | Braves Holdings Term Loan                
Debt Instrument [Line Items]                
Debt instrument, unused borrowing capacity, fee, percent     0.35%          
Braves Holdings | Revolving Credit Facility | Braves Holdings Revolving Credit Facility One                
Debt Instrument [Line Items]                
Line of Credit Facility, Maximum Borrowing Capacity       85,000,000       $ 250,000,000
Braves Holdings | Term Loan [Member] | Braves Holdings Term Loan                
Debt Instrument [Line Items]                
Debt issuance amount     $ 345,000,000          
Braves Holdings | Senior Notes | Braves Holdings Senior Secured Notes                
Debt Instrument [Line Items]                
Debt issuance amount $ 200,000,000              
Debt Instrument, Interest Rate, Stated Percentage 3.77%              
Braves Holdings | Cobb County Major League Baseball Ballpark                
Debt Instrument [Line Items]                
Expected cost of new facility       672,000,000        
Construction and Development Costs       $ 692,000,000        
Lease term       30 years        
Property, Plant and Equipment, Useful Life       45 years        
Braves Holdings | Cobb County Major League Baseball Ballpark | Revolving Credit Facility | Braves Holdings Term Loan and Revolving Credit Facilities                
Debt Instrument [Line Items]                
Long-term Debt       $ 161,000,000        
Braves Holdings | Cobb County Ballpark Mixed Use Development                
Debt Instrument [Line Items]                
Expected cost of new facility       558,000,000        
Construction and Development Costs       374,000,000        
Proceeds from equity issuance to fund new facility       200,000,000        
Proceeds from debt issuance to fund new facility       $ 270,000,000        
Braves Holdings | Cobb County Ballpark Mixed Use Development | Revolving Credit Facility                
Debt Instrument [Line Items]                
Debt Instrument, Description of Variable Rate Basis       LIBOR        
Number of credit facilities | item   3            
Line of Credit Facility, Maximum Borrowing Capacity   $ 207,000,000            
Extension Options on Credit Facilities | item       2        
Shares pledged as collateral under loan | shares       464        
Share value       $ 47,000,000        
Braves Holdings | Other Costs And Equipment                
Debt Instrument [Line Items]                
Construction and Development Costs       50,000,000        
Braves Holdings | Cobb Marietta Coliseum And Exhibit Hall Authority [Member] | Cobb County Major League Baseball Ballpark                
Debt Instrument [Line Items]                
Due from Affiliates       392,000,000        
Braves Holdings | Affiliated Entities | Cobb County Ballpark Mixed Use Development                
Debt Instrument [Line Items]                
Construction and Development Costs       470,000,000        
Braves Holdings | The Authority                
Debt Instrument [Line Items]                
Related Party Transaction, Amounts of Transaction     103,000,000          
Braves Holdings | The Authority | Cobb Marietta Coliseum And Exhibit Hall Authority [Member] | Cobb County Major League Baseball Ballpark                
Debt Instrument [Line Items]                
Fair Value of Assets Acquired       $ 390,000,000        
Cobb Marietta Coliseum And Exhibit Hall Authority [Member] | Cobb County Major League Baseball Ballpark | Bonds Payable                
Debt Instrument [Line Items]                
Debt issuance amount     $ 368,000,000          
Minimum | Braves Holdings | Braves Holdings Term Loan                
Debt Instrument [Line Items]                
Debt Instrument, Basis Spread on Variable Rate     1.50%          
Minimum | Braves Holdings | Cobb County Ballpark Mixed Use Development | Revolving Credit Facility                
Debt Instrument [Line Items]                
Debt Instrument, Basis Spread on Variable Rate       2.00%        
Maximum | Braves Holdings | Braves Holdings Term Loan                
Debt Instrument [Line Items]                
Debt Instrument, Basis Spread on Variable Rate     1.75%          
Maximum | Braves Holdings | Cobb County Ballpark Mixed Use Development | Revolving Credit Facility                
Debt Instrument [Line Items]                
Debt Instrument, Basis Spread on Variable Rate       2.60%