Quarterly report pursuant to Section 13 or 15(d)

Recent Accounting Pronouncements - Revenue recognition - Performance obligations (Details)

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Recent Accounting Pronouncements - Revenue recognition - Performance obligations (Details) - Formula One and Braves Holdings
$ in Millions
Sep. 30, 2018
USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01  
Remaining performance obligations  
Remaining performance obligation, revenue expected to be recognized $ 381
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-01  
Remaining performance obligations  
Remaining performance obligation, revenue expected to be recognized 1,882
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01  
Remaining performance obligations  
Remaining performance obligation, revenue expected to be recognized 1,659
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01  
Remaining performance obligations  
Remaining performance obligation, revenue expected to be recognized 4,391
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01  
Remaining performance obligations  
Remaining performance obligation, revenue expected to be recognized $ 403