Annual report pursuant to Section 13 and 15(d)

Acquisitions (Details)

v3.19.3.a.u2
Acquisitions (Details)
shares in Millions, $ in Millions
12 Months Ended
Dec. 30, 2017
USD ($)
Dec. 29, 2017
USD ($)
shares
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]          
Equity Method Investments     $ 126 $ 135  
Business Acquisition, Pro Forma Information          
Stock-based compensation     $ 71 $ 88 $ 123
HSN, Inc.          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]          
Business Acquisition, Percentage of Voting Interests Acquired   62.00%      
Equity Method Investments   $ 605      
Equity value of acquired business   1,900      
Remeasurement Gain   $ 409      
Business Acquisition, Pro Forma Information          
Pro Forma Revenue         13,791
Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax         2,200
Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual $ 43        
Business acquisition costs, including stock-based compensation         38
Stock-based compensation         8
Common Class A | HSN, Inc.          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]          
Business Acquisition Equity Interests Issued or Issuable Number Of Shares Issued Per Shares Acquired   1.65      
Stock Issued During Period Shares Acquisitions | shares   53.6      
Common Class A | QVC common stock | HSN, Inc.          
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]          
Business Acquisition Equity Interests Issued or Issuable Number Of Shares Issued Per Shares Acquired   1.65      
Stock Issued During Period Shares Acquisitions | shares   53.6      
Value of shares issued to acquire business   $ 1,300      
Cornerstone          
Business Acquisition, Pro Forma Information          
Restructuring Charges         $ 5