Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Narrative) (Details)

v3.8.0.1
Stockholders' Equity (Narrative) (Details)
$ in Millions
 12 Months Ended
Dec. 29, 2017
shares
Oct. 02, 2015
shares
Dec. 31, 2017
USD ($)
Vote
shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2015
USD ($)
shares
Nov. 04, 2016
Jun. 02, 2015
shares
Class of Stock [Line Items]              
Preferred Stock, Shares Issued     0 0      
Capital stock designated as common stock             8,965,000,000
Capital stock authorized for issuance             9,015,000,000
Common Class A              
Class of Stock [Line Items]              
Share received in exchange     1        
Common Class A | Liberty Expedia Holdings              
Class of Stock [Line Items]              
Spilt-Off redemption ratio           0.4  
Common Class A | QVC Group Common Stock              
Class of Stock [Line Items]              
Number of votes | Vote     1        
Common stock, shares authorized     4,000,000,000 4,000,000,000      
Common Stock, Shares, Issued     449,335,940 429,005,932      
Common Stock, Shares, Outstanding     449,335,940 429,005,932      
Common Stock, Capital Shares Reserved for Future Issuance     32,400,000        
Stock Repurchased and Retired During Period, Shares     34,765,751 34,836,196 28,134,498    
Stock Repurchased and Retired During Period, Value | $     $ 766 $ 799 $ 785    
Common Class A | Liberty Ventures common stock              
Class of Stock [Line Items]              
Number of votes | Vote     1        
Common stock, shares authorized     400,000,000 400,000,000     400,000,000
Common Stock, Shares, Issued     81,686,659 81,150,711      
Common Stock, Shares, Outstanding     81,686,659 81,150,711      
Spilt-Off redemption ratio           0.4  
Common Stock, Capital Shares Reserved for Future Issuance     1,700,000        
Common Class B | Liberty Expedia Holdings              
Class of Stock [Line Items]              
Spilt-Off redemption ratio           0.4  
Common Class B | QVC Group Common Stock              
Class of Stock [Line Items]              
Number of votes | Vote     10        
Common stock, shares authorized     150,000,000 150,000,000      
Common Stock, Shares, Issued     29,203,895 29,358,638      
Common Stock, Shares, Outstanding     29,203,895 29,358,638      
Common Stock, Capital Shares Reserved for Future Issuance     1,600,000        
Common Class B | Liberty Ventures common stock              
Class of Stock [Line Items]              
Number of votes | Vote     10        
Common stock, shares authorized     15,000,000 15,000,000     15,000,000
Common Stock, Shares, Issued     4,455,311 4,271,958      
Common Stock, Shares, Outstanding     4,455,311 4,271,958      
Spilt-Off redemption ratio           0.4  
Common Stock, Capital Shares Reserved for Future Issuance     1,100,000        
Common Class C | QVC Group Common Stock              
Class of Stock [Line Items]              
Common stock, shares authorized     4,000,000,000        
Common Stock, Shares, Issued     0        
Common Stock, Shares, Outstanding     0        
Common Class C | Liberty Ventures common stock              
Class of Stock [Line Items]              
Common stock, shares authorized     400,000,000       400,000,000
Common Stock, Shares, Issued     0        
Common Stock, Shares, Outstanding     0        
zulily | Common Class A | QVC Group Common Stock              
Class of Stock [Line Items]              
Stock Issued During Period Shares Acquisitions]   38,500,000          
HSNi | Common Class A | QVC Group Common Stock              
Class of Stock [Line Items]              
Stock Issued During Period Shares Acquisitions] 53,600,000