Goodwill and Other Intangible Assets (Changes In The Carrying Amount Of Goodwill) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Balance, beginning of the year	$ 6,112
Goodwill, Purchase Accounting Adjustments	57
Sale of subsidiary	(21)
Foreign currency translation adjustments	35
Other	1
Balance, end of the year	6,184
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Finite-Lived Intangible Assets, Net	1,147	$ 1,647
QVC
Goodwill [Roll Forward]
Balance, beginning of the year	5,149
Foreign currency translation adjustments	35
Balance, end of the year	5,184
zulily
Goodwill [Roll Forward]
Balance, beginning of the year	860
Goodwill, Purchase Accounting Adjustments	57
Balance, end of the year	917
Corporate and Other
Goodwill [Roll Forward]
Balance, beginning of the year	103
Sale of subsidiary	(21)
Other	1
Balance, end of the year	$ 83