Long-Term Debt - Formula 1 (Details) - USD ($) $ in Millions  | 
1 Months Ended | 3 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2021  | 
May 23, 2019  | 
Jan. 31, 2018  | 
Jan. 31, 2018  | 
Mar. 31, 2021  | 
Mar. 31, 2020  | 
Dec. 31, 2020  | 
Aug. 03, 2017  | 
Aug. 02, 2017  | 
|
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Repayments of Long-term Debt | Ìý | Ìý | Ìý | Ìý | $ 593 | $ 372 | Ìý | Ìý | Ìý | 
| Cash and Cash Equivalents, at Carrying Value | $ 2,994 | Ìý | Ìý | Ìý | 2,994 | Ìý | $ 2,831 | Ìý | Ìý | 
| Formula 1 | Senior Loan Facility | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument Description Of Variable Rate Basis Reduction | Ìý | 0.25% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Formula 1 | LIBOR | Senior Loan Facility | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument, Description of Variable Rate Basis | LIBOR | LIBOR | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument, Basis Spread on Variable Rate | 2.50% | 2.00% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Formula 1 | Senior Loan Facility | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Long term debt | $ 2,900 | Ìý | $ 2,900 | $ 2,900 | $ 2,900 | Ìý | Ìý | $ 3,300 | $ 3,100 | 
| Line of Credit Facility, Maximum Borrowing Capacity | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | $ 500 | $ 75 | 
| Repayments of Long-term Debt | Ìý | Ìý | Ìý | 400 | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Cash and Cash Equivalents, at Carrying Value | Ìý | Ìý | 150 | 150 | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Effective interest rate | 3.50% | Ìý | Ìý | Ìý | 3.50% | Ìý | Ìý | Ìý | Ìý | 
| Formula 1 | Senior Loan Facility | Senior Loan Facility | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Line of Credit Facility, Maximum Borrowing Capacity | $ 500 | Ìý | Ìý | Ìý | $ 500 | Ìý | Ìý | Ìý | Ìý | 
| Line of Credit | Ìý | Ìý | $ 250 | $ 250 | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Formula 1 | Senior Loan Facility | LIBOR | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument, Description of Variable Rate Basis | Ìý | Ìý | LIBOR | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument, Basis Spread on Variable Rate | Ìý | Ìý | Ìý | 2.50% | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Formula 1 | Interest Rate Swap | Senior Loan Facility | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Notional Amount of Interest Rate Cash Flow Hedge Derivatives | 2,100 | Ìý | Ìý | Ìý | 2,100 | Ìý | Ìý | Ìý | Ìý | 
| Braves Holdings | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Long term debt | 676 | Ìý | Ìý | Ìý | 676 | Ìý | $ 674 | Ìý | Ìý | 
| Formula One Group | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Repayments of Long-term Debt | Ìý | Ìý | Ìý | Ìý | 2 | $ 131 | Ìý | Ìý | Ìý | 
| Cash and Cash Equivalents, at Carrying Value | $ 1,783 | Ìý | Ìý | Ìý | $ 1,783 | Ìý | Ìý | Ìý | Ìý | 
| Formula One Group | Common Class C | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Common stock, shares issued | 203,573,428 | Ìý | Ìý | Ìý | 203,573,428 | Ìý | 203,538,477 | Ìý | Ìý | 
| Formula One Group | Formula 1 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Debt Instrument | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 
| Cash and Cash Equivalents, at Carrying Value | $ 429 | Ìý | Ìý | Ìý | $ 429 | Ìý | Ìý | Ìý | Ìý |