|
Tracking Stock (Details) (USD $)
|
0 Months Ended | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2014
item
|
Dec. 31, 2013
|
Sep. 30, 2013
|
Dec. 31, 2012
|
Sep. 30, 2014
Interactive Group
|
Dec. 31, 2013
Interactive Group
|
Sep. 30, 2013
Interactive Group
|
Dec. 31, 2012
Interactive Group
|
Sep. 30, 2014
Interactive Group
HSN, Inc.
|
Oct. 10, 2013
Interactive Group
HSN, Inc.
|
Oct. 03, 2014
Interactive Group
Reattribution Transaction
Ventures Group
Subsequent Event [Member]
|
Oct. 03, 2014
Interactive Group
QVC Bank Credit Facilities
Subsequent Event [Member]
|
Sep. 30, 2014
Ventures Group
|
Dec. 31, 2013
Ventures Group
|
Sep. 30, 2013
Ventures Group
|
Dec. 31, 2012
Ventures Group
|
Oct. 03, 2014
Ventures Group
Common Class A
Subsequent Event [Member]
|
Oct. 03, 2014
Ventures Group
Reattribution Transaction
Subsequent Event [Member]
|
|
| Targeted or Tracking Stock, Stock [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of tracking stocks | 2 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Cash and cash equivalents | $ 1,606,000,000 | $ 902,000,000 | $ 700,000,000 | $ 2,291,000,000 | $ 733,000,000 | $ 595,000,000 | $ 450,000,000 | $ 698,000,000 | Ìý | Ìý | Ìý | Ìý | $ 873,000,000 | $ 307,000,000 | $ 250,000,000 | $ 1,593,000,000 | Ìý | Ìý |
| Reattributed Assets transferred, excluding cash | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 1,500,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Total cash reattributed | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 1,000,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Cash reattributed as part of Reattributed Assets | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 970,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Cash reattributed outside of Reattributed Assets | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 30,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Ratio applied to the reattribution | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 0.14217 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Total fair value of Reattributed Assets | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 2,470,000,000 |
| Average of the high and low sales prices of stock | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | $ 36.50 | Ìý |
| Number of shares issuable in connection with asset reattribution | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 67,671,232 |
| Equity Method Investment, Ownership Percentage | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 38.00% | 38.00% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Line of Credit Facility, Amount Outstanding | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | $ 1,060,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |