Quarterly report pursuant to Section 13 or 15(d)

Earnings (Loss) Per Common Share (Earrings Per Share Basic and Diluted) (Details)

v2.4.0.6
Earnings (Loss) Per Common Share (Earrings Per Share Basic and Diluted) (Details)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended 2 Months Ended 1 Months Ended 3 Months Ended 7 Months Ended 9 Months Ended 2 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Segment, Liberty Capital [Member]
Sep. 30, 2011
Segment, Liberty Capital [Member]
Sep. 30, 2011
Segment, Liberty Starz [Member]
Sep. 30, 2012
Segment, Liberty Interactive [Member]
Aug. 08, 2012
Segment, Liberty Interactive [Member]
Sep. 30, 2011
Segment, Liberty Interactive [Member]
Aug. 08, 2012
Segment, Liberty Interactive [Member]
Sep. 30, 2011
Segment, Liberty Interactive [Member]
Sep. 30, 2012
Liberty Interactive [Member]
Sep. 30, 2012
Liberty Ventures [Member]
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]                      
Basic, Weighted average number of shares outstanding   81 81 51   542 597 559 598 542 29
Stock options           10 7 9 7    
Diluted, Weighted average number of shares outstanding   81 83 53   552 604 568 605 552 30
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount         6            
Stockholders' Equity Note, Stock Split, Conversion Ratio 0.05