Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.10.0.1
Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Stock-based compensation $ 23 $ 21 $ 46 $ 37
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate     0.00%  
Total unrecognized compensation cost related to unvested Liberty equity awards $ 96   $ 96  
Weighted average period of recognition related to unvested equity awards (in years)     2 years 3 months 18 days  
Common Class A        
Common Stock, Capital Shares Reserved for Future Issuance 34,200   34,200  
Options granted     4,094  
Common Class B        
Common Stock, Capital Shares Reserved for Future Issuance 1,800   1,800  
Options granted     175  
Common Class B | Restricted Stock        
Award vesting period     1 year  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     124  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 27.56   $ 27.56  
QVC Employees | Common Class A        
Options granted     2,924  
Weighted average grant-date fair value of options     $ 8.76  
Award vesting period     4 years  
zulily Employees | Common Class A        
Options granted     311  
Weighted average grant-date fair value of options     $ 8.77  
Award vesting period     4 years  
HSNi Employees | Common Class A        
Options granted     859  
Weighted average grant-date fair value of options     $ 8.77  
Award vesting period     4 years  
Qurate Retail Chairman of the Board | Common Class B        
Options granted     175  
Weighted average grant-date fair value of options     $ 8.84  
Liberty Ventures common stock | Qurate Retail Chairman of the Board | Common Class B        
Options granted     143  
Weighted average grant-date fair value of options     $ 16.55