Quarterly report pursuant to Section 13 or 15(d)

Assets And Liabilities Measured At Fair Value Assets and Liabilities Measured at Fair Value (Realized and Unrealized Gains (Losses) on Financial Assets (Details)

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Assets And Liabilities Measured At Fair Value Assets and Liabilities Measured at Fair Value (Realized and Unrealized Gains (Losses) on Financial Assets (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Oct. 17, 2013
1.375% Cash Convertible Senior Notes due 2023
Jun. 30, 2014
Fair Value Option Securities
Jun. 30, 2013
Fair Value Option Securities
Jun. 30, 2014
Fair Value Option Securities
Jun. 30, 2013
Fair Value Option Securities
Jun. 30, 2014
Convertible Notes Payable
Jun. 30, 2013
Convertible Notes Payable
Jun. 30, 2014
Convertible Notes Payable
Jun. 30, 2013
Convertible Notes Payable
Jun. 30, 2014
Other Financial Instruments
Jun. 30, 2013
Other Financial Instruments
Jun. 30, 2014
Other Financial Instruments
Jun. 30, 2013
Other Financial Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                                  
Realized and unrealized (gains) losses on financial instruments, net $ 25 $ 61 $ (40) $ 158   $ 78 $ 54 $ 63 $ 136 $ (82) [1] $ 0 [1] $ (23) [1] $ 0 [1] $ 29 [2] $ 7 [2] $ (80) [2] $ 22 [2]
Debt face amount $ 5,933   $ 5,933   $ 1,000                        
[1] Liberty issued $1 billion of cash convertible notes in October 2013 which are accounted for at fair value (Level 2), as elected by Liberty at the issuance of the notes.
[2] Derivatives, including the Charter warrants (as discussed in note 6) and the bond hedge (as discussed in note 8), are marked to market based on the trading price of underlying securities and other observable market data as the significant inputs (Level 2).