Document And Entity Information - shares |
9 Months Ended | |
|---|---|---|
Sep. 30, 2017 |
Oct. 31, 2017 |
|
| Entity Registrant Name | Liberty Interactive Corp | |
| Entity Central Index Key | 0001355096 | |
| Current Fiscal Year End Date | --12-31 | |
| Entity Filer Category | Large Accelerated Filer | |
| Document Type | 10-Q | |
| Document Period End Date | Sep. 30, 2017 | |
| Document Fiscal Year Focus | 2017 | |
| Document Fiscal Period Focus | Q3 | |
| Amendment Flag | false | |
| Entity Current Reporting Status | Yes | |
| QVC Group Common Class A | ||
| Entity Common Stock, Shares Outstanding | 401,097,375 | |
| QVC Group Common Class B | ||
| Entity Common Stock, Shares Outstanding | 29,217,195 | |
| Ventures Group Common Class A | ||
| Entity Common Stock, Shares Outstanding | 81,351,297 | |
| Ventures Group Common Class B | ||
| Entity Common Stock, Shares Outstanding | 4,245,314 |