Annual report pursuant to Section 13 and 15(d)

Quarterly Financial Information (Details)

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Quarterly Financial Information (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Revenue $ 467 $ 555 $ 537 $ 440 $ 973 $ 540 $ 538 $ 973 $ 1,999 $ 3,024 $ 2,050
Operating income 25 111 101 89 293 111 94 459 326 957 195
Earnings from continuing operations 103 220 938 151              
Series A and Series B Liberty Capital common stock                 1,414 836 1,000
Series A and Series B Liberty Capital common stock                 $ 11.78    
Series A and Series B Liberty Capital common stock                 $ 11.40    
Segment, Liberty Capital [Member]
                     
Series A and Series B Liberty Capital common stock 106 221 937 150 356 (103) 63 291      
Series A and Series B Liberty Capital common stock $ 0.88 $ 1.86 $ 7.87 $ 1.24 $ 3.79 $ (1.27) $ 0.78 $ 3.55      
Series A and Series B Liberty Capital common stock $ 0.87 $ 1.80 $ 7.62 $ 1.20 $ 3.63 $ (1.27) $ 0.78 $ 3.46      
Segment, Liberty Starz [Member]
                     
Series A and Series B Liberty Capital common stock         49 61 67 52      
Series A and Series B Liberty Capital common stock         $ 0.98 $ 1.20 $ 1.31 $ 1.02      
Series A and Series B Liberty Capital common stock         $ 0.94 $ 1.15 $ 1.26 $ 0.98      
Scenario, Previously Reported [Member]
                     
Series A and Series B Liberty Capital common stock   $ 1,007 $ 156 $ 137 $ 385 $ (103) $ 22 $ 279      
Series A and Series B Liberty Capital common stock   $ 8.46 $ 1.31 $ 1.13 $ 4.10 $ (1.27) $ 0.27 $ 3.40      
Series A and Series B Liberty Capital common stock   $ 8.19 $ 1.27 $ 1.10 $ 3.93 $ (1.27) $ 0.27 $ 3.32