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 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Stock-based compensation $ 22 $ 20 $ 59 $ 75
Total unrecognized compensation cost related to unvested Liberty equity awards $ 111   111  
Weighted average period of recognition related to unvested equity awards (in years) 2 years 7 months 6 days      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 0.00%      
QVC Group Common Stock        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Stock-based compensation     48 57
Liberty Ventures common stock        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Stock-based compensation     $ 11 $ 18
Common Class A | QVC Group Common Stock        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options granted     3,763  
Common Stock, Capital Shares Reserved for Future Issuance 30,900   30,900  
Common Class A | QVC Group Common Stock | QVC        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options granted     3,100  
Weighted average grant-date fair value of options     $ 7.86  
Award vesting period     4 years  
Common Class A | QVC Group Common Stock | Corporate Segment [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options granted     165  
Weighted average grant-date fair value of options     $ 7.73  
Common Class A | QVC Group Common Stock | Corporate Segment [Member] | Minimum        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Award vesting period     1 year  
Common Class A | QVC Group Common Stock | Corporate Segment [Member] | Maximum        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Award vesting period     5 years  
Common Class A | QVC Group Common Stock | zulily        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options granted     483  
Weighted average grant-date fair value of options     $ 7.86  
Award vesting period     4 years  
Common Class A | Liberty Ventures common stock        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options granted     34  
Common Stock, Capital Shares Reserved for Future Issuance 1,600   1,600  
Common Class A | Liberty Ventures common stock | Corporate Segment [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options granted     34  
Weighted average grant-date fair value of options     $ 15.48  
Common Class A | Liberty Ventures common stock | Corporate Segment [Member] | Minimum        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Award vesting period     1 year  
Common Class A | Liberty Ventures common stock | Corporate Segment [Member] | Maximum        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Award vesting period     5 years  
Common Class B | QVC Group Common Stock        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options granted     154  
Common Stock, Capital Shares Reserved for Future Issuance 1,600   1,600  
Common Class B | QVC Group Common Stock | Chief Executive Officer        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options granted     154  
Weighted average grant-date fair value of options     $ 7.92  
Award vesting period 1 year      
Common Class B | QVC Group Common Stock | Restricted Stock Units (RSUs) | Chief Executive Officer        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Grants in period     115  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 19.90  
Common Class B | Liberty Ventures common stock        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options granted     269  
Common Stock, Capital Shares Reserved for Future Issuance 1,300   1,300  
Common Class B | Liberty Ventures common stock | Chief Executive Officer        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]        
Options granted     269  
Weighted average grant-date fair value of options     $ 15.41