Earnings (Loss) Per Common Share (Earrings Per Share Basic and Diluted) (Details) In Millions, unless otherwise specified	3 Months Ended	0 Months Ended
Mar. 31, 2014 Liberty Interactive	Mar. 31, 2013 Liberty Interactive	Mar. 31, 2014 Liberty Ventures [Member]	Mar. 31, 2013 Liberty Ventures [Member]	Apr. 11, 2014 Subsequent Event Ventures Group
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2
Basic EPS (in shares)	494	535	73	72
Potentially dilutive shares (in shares)	10	7	1	0
Diluted EPS (in shares)	504	542	74	72
Stock split, conversion ratio					2

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Section 50

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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