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Annual report pursuant to Section 13 and 15(d)

Investments In Available-For-Sale Securities And Other Cost Investments (Details)

v3.8.0.1
Investments In Available-For-Sale Securities And Other Cost Investments (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Sep. 22, 2017
USD ($)
$ / shares
shares
Dec. 31, 2017
USD ($)
item
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý $ 1,114 $ 1,309 Ìý
Payments to Acquire Investments Ìý 862 784 $ 19
Unrealized Gain (Loss) on Securities Ìý $ (88) 37 (140)
SIRIUS XM Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Ownership Interest In Investee Ìý 70.00% Ìý Ìý
Pandora Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Payments to Acquire Investments $ 480 Ìý Ìý Ìý
Pandora | SIRIUS XM Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Ownership Interest In Investee 19.00% Ìý Ìý Ìý
Ownership percentage on an as-converted basis 16.00% Ìý Ìý Ìý
Convertible Preferred Stock, Price Per Share | $ / shares $ 10.50 Ìý Ìý Ìý
Convertible Preferred Stock, Shares Issued upon Conversion | shares 95.2381 Ìý Ìý Ìý
Preferred Stock, Dividend Rate, Percentage 6.00% Ìý Ìý Ìý
Cost Method Investment Minimum Threshold Percentage Approved Issuance 19.99 Ìý Ìý Ìý
Cost Method Investment Maximum Percentage Threshold For Conversion Of Preferred Shares 19.99% Ìý Ìý Ìý
Cost Method Investment, Number of Directors Designated | item Ìý 3 Ìý Ìý
Cost Method Investment, Number of Directors Designated, Chairman | item Ìý 1 Ìý Ìý
Unrealized Gain (Loss) on Securities Ìý $ (17) Ìý Ìý
Pandora | SIRIUS XM | Minimum Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Cost Method Investment, Minimum Ownerships Percentage for Director Designation, Converted Basis Ìý 50.00% Ìý Ìý
Cost Method Investment, Minimum Ownership Percentage for Designation of Two Directors, Converted Basis Ìý 75.00% Ìý Ìý
Other AFS Securities | Fair Value Option Securities Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý $ 100 Ìý Ìý
Â鶹×îгöÆ· Sirius XM Group Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý 580 Ìý Ìý
Payments to Acquire Investments Ìý 851 Ìý Ìý
Unrealized Gain (Loss) on Securities Ìý (16) Ìý Ìý
Â鶹×îгöÆ· Sirius XM Group | Pandora | Fair Value Option Securities Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý 480 Ìý Ìý
Braves Group Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý 8 8 Ìý
Payments to Acquire Investments Ìý 2 20 Ìý
Unrealized Gain (Loss) on Securities Ìý Ìý 1 Ìý
Braves Group | AFS and cost method investments Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý 8 8 Ìý
Formula One Group Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý 526 1,301 Ìý
Payments to Acquire Investments Ìý 9 764 19
Unrealized Gain (Loss) on Securities Ìý (72) 36 $ (140)
Formula One Group | Fair Value Option Securities Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý 467 489 Ìý
Formula One Group | AFS and cost method investments Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý 59 812 Ìý
Formula One Group | Time Warner Inc | Fair Value Option Securities Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý 389 411 Ìý
Formula One Group | Formula 1 | AFS and cost method investments Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý Ìý 759 Ìý
Formula One Group | Other AFS Securities | Fair Value Option Securities Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý 78 78 Ìý
Formula One Group | Other AFS Securities | AFS and cost method investments Ìý Ìý Ìý Ìý
Transaction details [Line Items] Ìý Ìý Ìý Ìý
Investments in available-for-sale securities and other cost investments Ìý $ 59 $ 53 Ìý