Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.8.0.1
Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Stock-based compensation $ 23 $ 16
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 $ 107  
Weighted average period of recognition related to unvested equity awards (in years) 2 years 2 months 12 days  
QVC Group | Common Class A    
Common Stock, Capital Shares Reserved for Future Issuance 35,200  
Options granted 4,080  
QVC Group | Common Class B    
Common Stock, Capital Shares Reserved for Future Issuance 1,800  
Options granted 175  
QVC Group | 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 $ 27.77  
QVC Group | QVC Employees | Common Class A    
Options granted 2,910  
Weighted average grant-date fair value of options $ 8.77  
Award vesting period 4 years  
QVC Group | zulily Employees | Common Class A    
Options granted 311  
Weighted average grant-date fair value of options $ 8.77  
Award vesting period 4 years  
QVC Group | HSNi Employees | Common Class A    
Options granted 859  
Weighted average grant-date fair value of options $ 8.77  
Award vesting period 4 years  
QVC Group | 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