Tracking Stocks (Narrative) (Details) $ / shares in Units, $ in Millions |
1 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Apr. 25, 2017
$ / shares
|
Feb. 28, 2017
USD ($)
|
Jan. 24, 2017
$ / shares
|
Jun. 30, 2016
USD ($)
|
Jun. 16, 2016
$ / shares
shares
|
Mar. 31, 2017
USD ($)
shares
|
Jan. 23, 2017 |
Dec. 31, 2016
USD ($)
|
Oct. 27, 2016 |
Sep. 07, 2016 |
Apr. 15, 2016
shares
|
Mar. 31, 2016
USD ($)
|
Dec. 31, 2015
USD ($)
|
|
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of tracking stock groups | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 3 | Ìý | Ìý |
| Cash and cash equivalents | Ìý | Ìý | Ìý | Ìý | Ìý | $ 1,071 | Ìý | $ 562 | Ìý | Ìý | Ìý | $ 602 | $ 201 |
| Âé¶¹×îгöÆ· Sirius XM Group | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of tracking stock shares received in the Recapitalization for one share of Âé¶¹×îгöÆ· Media common stock | shares | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 1 | Ìý | Ìý |
| Cash and cash equivalents | Ìý | Ìý | Ìý | Ìý | Ìý | 330 | Ìý | 287 | Ìý | Ìý | Ìý | 102 | 112 |
| Braves Group | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of tracking stock shares received in the Recapitalization for one share of Âé¶¹×îгöÆ· Media common stock | shares | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 0.1 | Ìý | Ìý |
| Cash and cash equivalents | Ìý | Ìý | Ìý | Ìý | Ìý | 115 | Ìý | 107 | Ìý | Ìý | Ìý | 44 | 13 |
| Braves Group | Common Class C | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Share Price | $ / shares | Ìý | Ìý | Ìý | Ìý | $ 12.80 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Stock Issued During Period, Shares, Period Increase (Decrease) | shares | Ìý | Ìý | Ìý | Ìý | 15,833,634 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Âé¶¹×îгöÆ· Media Group | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of tracking stock shares received in the Recapitalization for one share of Âé¶¹×îгöÆ· Media common stock | shares | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 0.25 | Ìý | Ìý |
| Formula One Group | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Cash and cash equivalents | Ìý | Ìý | Ìý | Ìý | Ìý | $ 626 | Ìý | 168 | Ìý | Ìý | Ìý | $ 456 | $ 76 |
| Braves Group | Formula One Group | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Percentage ownership | Ìý | Ìý | Ìý | Ìý | Ìý | 15.50% | Ìý | Ìý | Ìý | Ìý | 20.00% | Ìý | Ìý |
| Investment Owned, Balance, Shares | shares | Ìý | Ìý | Ìý | Ìý | Ìý | 9,084,940 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Braves Group | Formula One Group | Common Class C | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Investment Owned, Balance, Shares | shares | Ìý | Ìý | Ìý | Ìý | Ìý | 9,084,940 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Formula 1 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Investment ownership percentage | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 20.00% | Ìý | Ìý | Ìý |
| Interest acquired (as a percent) | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 100.00% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Diluted investment ownership percentage | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 19.10% | Ìý | Ìý | Ìý | Ìý |
| Business Acquisition, Percentage of Voting Interests Acquired | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 100.00% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Formula 1 | Formula One Group | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Investment ownership percentage | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 20.00% | Ìý | Ìý | Ìý |
| Interest acquired (as a percent) | Ìý | Ìý | Ìý | Ìý | Ìý | 100.00% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Diluted investment ownership percentage | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 19.10% | Ìý | Ìý | Ìý | Ìý |
| Business Acquisition, Percentage of Voting Interests Acquired | Ìý | Ìý | Ìý | Ìý | Ìý | 100.00% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| SIRIUS XM | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Common Stock, Dividends, Per Share, Declared | $ / shares | $ 0.01 | Ìý | $ 0.01 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Payments of Dividends | Ìý | $ 47 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Cash Dividends Paid to Parent Company | Ìý | $ 32 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| SIRIUS XM | Âé¶¹×îгöÆ· Sirius XM Group | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Cash and cash equivalents | Ìý | Ìý | Ìý | Ìý | Ìý | $ 230 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Formula 1 | Formula One Group | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Cash and cash equivalents | Ìý | Ìý | Ìý | Ìý | Ìý | $ 432 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Intergroup note | Braves Group | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Repayments of Lines of Credit | Ìý | Ìý | Ìý | $ 150 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Line of Credit Facility, Maximum Borrowing Capacity | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | $ 165 | Ìý | Ìý | Ìý | Ìý | Ìý |