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Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Narrative) (Details)

v3.19.3.a.u2
Stockholders' Equity (Narrative) (Details)
$ in Millions
 12 Months Ended
Dec. 29, 2017
shares
Dec. 31, 2019
USD ($)
Vote
shares
Dec. 31, 2018
USD ($)
shares
Dec. 31, 2017
USD ($)
shares
May 23, 2018
shares
Mar. 09, 2018
Jun. 02, 2015
shares
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Preferred Stock, Shares Issued Ìý 0 0 Ìý Ìý Ìý Ìý
Capital stock authorized for issuance Ìý Ìý Ìý Ìý 8,200,000,000 Ìý 9,015,000,000
Common Stock, Capital Shares Reserved for Future Issuance Ìý Ìý 25,100,000 Ìý 8,150,000,000 Ìý 8,965,000,000
Preferred Stock, Capital Shares Reserved for Future Issuance Ìý Ìý Ìý Ìý 50,000,000 Ìý Ìý
Common Class A Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Number of votes | Vote Ìý 1 Ìý Ìý Ìý Ìý Ìý
Share received in exchange Ìý 1 Ìý Ìý Ìý Ìý Ìý
Common stock, shares authorized Ìý 4,000,000,000 4,000,000,000 Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý 386,691,461 409,901,058 Ìý Ìý Ìý Ìý
Common Stock, Shares, Outstanding Ìý 386,691,461 409,901,058 Ìý Ìý Ìý Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý Ìý Ìý Ìý 4,000,000,000 Ìý Ìý
Stock Repurchased and Retired During Period, Shares Ìý 24,329,610 43,080,787 34,765,751 Ìý Ìý Ìý
Stock Repurchased and Retired During Period, Value | $ Ìý $ 392 $ 988 $ 766 Ìý Ìý Ìý
Common Class A | Stock Option Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý 23,200,000 Ìý Ìý Ìý Ìý Ìý
Common Class A | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Spilt-Off redemption ratio Ìý Ìý Ìý Ìý Ìý 1 Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý Ìý Ìý Ìý Ìý Ìý 400,000,000
Common Class B Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Number of votes | Vote Ìý 10 Ìý Ìý Ìý Ìý Ìý
Common stock, shares authorized Ìý 150,000,000 150,000,000 Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý 29,278,424 29,248,343 Ìý Ìý Ìý Ìý
Common Stock, Shares, Outstanding Ìý 29,278,424 29,248,343 Ìý Ìý Ìý Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý Ìý Ìý Ìý 150,000,000 Ìý Ìý
Common Class B | Stock Option Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý 1,800,000 Ìý Ìý Ìý Ìý Ìý
Common Class B | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Spilt-Off redemption ratio Ìý Ìý Ìý Ìý Ìý 1 Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý Ìý Ìý Ìý Ìý Ìý 15,000,000
Common Class C Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Issued Ìý 0 Ìý Ìý Ìý Ìý Ìý
Common Stock, Shares, Outstanding Ìý 0 Ìý Ìý Ìý Ìý Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý 4,000,000,000 Ìý Ìý 4,000,000,000 Ìý Ìý
Common Class C | Liberty Ventures common stock Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Common Stock, Capital Shares Reserved for Future Issuance Ìý Ìý Ìý Ìý Ìý Ìý 400,000,000
HSN, Inc. | Common Class A Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Class of Stock [Line Items] Ìý Ìý Ìý Ìý Ìý Ìý Ìý
Stock Issued During Period Shares Acquisitions 53,600,000 Ìý Ìý Ìý Ìý Ìý Ìý