Annual report pursuant to Section 13 and 15(d)

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

v2.4.1.9
Investments In Available-For-Sale Securities And Other Cost Investments (Investments In Available-For-Sale Securities And Other Cost Investments) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Schedule of Investments in available-for-sale securities and other cost investments      
Investments in available-for-sale securities and other cost investments $ 1,224us-gaap_AvailableForSaleSecuritiesNoncurrent $ 1,313us-gaap_AvailableForSaleSecuritiesNoncurrent  
Cash proceeds from dispositions of investments 163us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities 1,137us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities 692us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
QVC 3.125% Senior Secured Notes Due 2019      
Schedule of Investments in available-for-sale securities and other cost investments      
Interest rate (as a percent) 3.125%us-gaap_DebtInstrumentInterestRateStatedPercentage
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Liberty Interactive common stock      
Schedule of Investments in available-for-sale securities and other cost investments      
Investments in available-for-sale securities and other cost investments 4us-gaap_AvailableForSaleSecuritiesNoncurrent
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4us-gaap_AvailableForSaleSecuritiesNoncurrent
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Cash proceeds from dispositions of investments   1us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
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Liberty Ventures common stock      
Schedule of Investments in available-for-sale securities and other cost investments      
Investments in available-for-sale securities and other cost investments 1,220us-gaap_AvailableForSaleSecuritiesNoncurrent
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1,309us-gaap_AvailableForSaleSecuritiesNoncurrent
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Cash proceeds from dispositions of investments 163us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
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1,136us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
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692us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
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Fair Value Option, Other Eligible Items | Liberty Interactive common stock      
Schedule of Investments in available-for-sale securities and other cost investments      
Investments in available-for-sale securities and other cost investments 4us-gaap_AvailableForSaleSecuritiesNoncurrent
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4us-gaap_AvailableForSaleSecuritiesNoncurrent
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Other Investments | Liberty Ventures common stock      
Schedule of Investments in available-for-sale securities and other cost investments      
Investments in available-for-sale securities and other cost investments 30us-gaap_AvailableForSaleSecuritiesNoncurrent
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262us-gaap_AvailableForSaleSecuritiesNoncurrent
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Time Warner Inc | Liberty Ventures common stock      
Schedule of Investments in available-for-sale securities and other cost investments      
Investments in available-for-sale securities and other cost investments 375us-gaap_AvailableForSaleSecuritiesNoncurrent
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306us-gaap_AvailableForSaleSecuritiesNoncurrent
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Time Warner Cable Inc | Liberty Ventures common stock      
Schedule of Investments in available-for-sale securities and other cost investments      
Investments in available-for-sale securities and other cost investments $ 815us-gaap_AvailableForSaleSecuritiesNoncurrent
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$ 741us-gaap_AvailableForSaleSecuritiesNoncurrent
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