Earnings (Loss) Per Common Share (Earrings Per Share Basic and Diluted) (Details) - shares shares in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
|
| QVC Group Common Stock | ||
| Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 14 | 12 |
| Basic EPS (WA shares outstanding) | 453 | 485 |
| Potentially dilutive shares | 2 | 6 |
| Diluted EPS (WA shares outstanding) | 455 | 491 |
| Liberty Ventures common stock | ||
| Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] | ||
| Basic EPS (WA shares outstanding) | 85 | 142 |
| Potentially dilutive shares | 1 | 1 |
| Diluted EPS (WA shares outstanding) | 86 | 143 |