Information About Qurate Retail's Operating Segments - Reconciliation Of Segment Adjusted OIBDA To Earnings (Loss) From Continuing Operations Before Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Information About Qurate Retail's Operating Segments
Consolidated segment Adjusted OIBDA	$ 460	$ 492
Stock-based compensation	(19)	(23)
Depreciation and amortization	(153)	(163)
Transaction related costs		(12)
Operating income (loss)	288	294
Interest expense	(96)	(98)
Share of earnings (losses) of affiliates, net	(45)	(14)
Realized and unrealized gains (losses) on financial instruments, net	(81)	99
Other, net	(8)	11
Earnings (loss) from continuing operations before income taxes	$ 58	$ 292

Represents the amount of acquisition, restructuring and advisory fees.

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Adjusted OIBDA is defined by the Company as revenue less operating expenses and selling, general and administrative expenses (excluding stock-based compensation). This measure of performance excludes depreciation and amortization, stock-based compensation, separately reported litigation settlements and restructurings and impairment charges that are included in the measurement of operating income pursuant to GAAP.

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Information About Liberty's Operating Segments [Abstract]

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The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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Amount of realized and unrealized gain (loss) on investment.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The net result for the period of deducting operating expenses from operating revenues.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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