Intangible Assets (Changes in the Carrying Amount of Goodwill) (Details) $ in Millions |
3 Months Ended |
|---|---|
|
Mar. 31, 2018
USD ($)
| |
| Goodwill [Roll Forward] | |
| Balance, beginning of the year | $ 7,082 |
| Foreign currency translation adjustments | 35 |
| Sale of subsidiary | (25) |
| Other | 2 |
| Balance, end of the year | 7,094 |
| Decrease due to spin-off | 25 |
| Acquisitions | 2 |
| QVC | |
| Goodwill [Roll Forward] | |
| Balance, beginning of the year | 5,190 |
| Foreign currency translation adjustments | 35 |
| Balance, end of the year | 5,225 |
| HSNi | |
| Goodwill [Roll Forward] | |
| Balance, beginning of the year | 933 |
| Other | 2 |
| Balance, end of the year | 935 |
| zulily | |
| Goodwill [Roll Forward] | |
| Balance, beginning of the year | 917 |
| Balance, end of the year | 917 |
| Corporate and Other | |
| Goodwill [Roll Forward] | |
| Balance, beginning of the year | 42 |
| Sale of subsidiary | (25) |
| Balance, end of the year | $ 17 |