Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

 v2.3.0.11
Stock-Based Compensation (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
6 Months Ended 1 Months Ended 6 Months Ended
Jun. 30, 2011
years
Mar. 31, 2011
Series A [Member]
QVC Employees [Member]
Segment, Liberty Interactive [Member]
Mar. 31, 2011
Series A [Member]
QVC CEO [Member]
Segment, Liberty Interactive [Member]
Mar. 31, 2011
Series A [Member]
Starz Entertainment Employees [Member]
Segment, Liberty Starz [Member]
Jun. 30, 2011
Series A [Member]
Segment, Liberty Interactive [Member]
Jun. 30, 2011
Series A [Member]
Segment, Liberty Starz [Member]
Options granted   5,700,000 3,800,000 484,000 5,741,000 484,000
Weighted average grant-date fair value of options   $ 7.33   $ 21.40    
Stock-based compensation, vesting period (in years)     4 4    
Total unrecognized compensation cost related to unvested Liberty equity awards $ 200          
Weighted average period of recognition related to unvested Liberty equity awards (in years) 2.8          
Dividend rate to estimate fair value 0.00%