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Percentage share of salary received by the chairman.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of shares authorized for issuance under share-based payment arrangement.

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Net number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Millions		3 Months Ended			12 Months Ended
	Sep. 14, 2020 shares	Dec. 31, 2021 $ / shares shares	Dec. 31, 2020 $ / shares	Sep. 30, 2020 $ / shares shares	Dec. 31, 2021 USD ($) tranche $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares
Stock-based compensation
Share-based Compensation Expense \| $					$ 72	$ 64	$ 71
Dividend rate					0.00%	0.00%	0.00%
RSA and RSU
Stock-based compensation
Special cash dividend \| $ / shares		$ 1.25	$ 1.50	$ 1.50
Board of Directors Chairman \| Restricted Stock Units (RSUs)
Stock-based compensation
Percentage share of salary received by the chairman			50.00%			50.00%
Percentage share of salary waived by the chairman			50.00%			50.00%
Board of Directors Chairman \| Performance Shares
Stock-based compensation
Award vesting period					1 year	1 year	1 year
Common Class A
Stock-based compensation
Options Granted					2,222,000
Common Class A \| RSA and RSU
Stock-based compensation
RSUs/RSAs GDFV \| $ / shares		$ 9.41			$ 9.41
Nonvested awards, number		12,900,000			12,900,000
Common Class A \| QVC and HSN employees
Stock-based compensation
Options Granted					895,000	4,200,000	2,503,000
Weighted Average GDFV \| $ / shares					$ 6.75	$ 1.96	$ 4.07
Award vesting period					4 years
Common Class A \| Zulily Employees
Stock-based compensation
Options Granted					79,000	618,000	328,000
Weighted Average GDFV \| $ / shares					$ 6.74	$ 1.94	$ 4.08
Award vesting period					4 years
Common Class A \| Qurate Retail Employees and Directors
Stock-based compensation
Options Granted					63,000	747,000	639,000
Weighted Average GDFV \| $ / shares					$ 6.18	$ 4.86	$ 3.97
Common Class A \| Qurate Retail Employees and Directors \| Restricted Stock Units (RSUs)
Stock-based compensation
Award vesting period					4 years
RSUs/RSAs granted					6,000,000.0	10,100,000	3,500,000
RSUs/RSAs GDFV \| $ / shares		$ 11.98	$ 4.78		$ 11.98	$ 4.78	$ 15.47
Common Class A \| Qurate Retail Chairman Of Board
Stock-based compensation
Options Granted						1,191,000	2,134,000
Weighted Average GDFV \| $ / shares						$ 4.88	$ 3.44
Common Class A \| Liberty Employees \| Minimum [Member]
Stock-based compensation
Award vesting period					2 years
Common Class A \| Liberty Employees \| Maximum [Member]
Stock-based compensation
Award vesting period					5 years
Common Class A \| Board of Directors Chairman \| Performance Shares
Stock-based compensation
RSUs/RSAs granted					229,000	584,000
RSUs/RSAs GDFV \| $ / shares		12.90	4.44		$ 12.90	$ 4.44
Common Class A \| Former Chief Executive Officer \| Restricted Stock Units (RSUs)
Stock-based compensation
RSUs/RSAs granted					684,000
RSUs/RSAs GDFV \| $ / shares		12.84			$ 12.84
Common Class A \| Former Chief Executive Officer \| Performance Shares
Stock-based compensation
RSUs/RSAs granted					423,000	725,000	191,000
RSUs/RSAs GDFV \| $ / shares		12.90	4.44		$ 12.90	$ 4.44	$ 17.90
Common Class A \| CEO
Stock-based compensation
Options Granted					1,185,000
Weighted Average GDFV \| $ / shares					$ 5.02
Number Of Tranches In Which Award Is Granted \| tranche					2
Common Class A \| CEO \| Restricted Stock Units (RSUs)
Stock-based compensation
Award vesting period					3 years
RSUs/RSAs GDFV \| $ / shares		10.50			$ 10.50
Common Class A \| CEO \| Performance Shares
Stock-based compensation
RSUs/RSAs granted					143,000
Common Class A \| CEO \| Time-based RSUs
Stock-based compensation
RSUs/RSAs granted					509,000
Common Class A \| Liberty directors
Stock-based compensation
Award vesting period					1 year
Common Class B \| RSA and RSU
Stock-based compensation
RSUs/RSAs GDFV \| $ / shares		$ 13.65			$ 13.65
Nonvested awards, number		1,100,000			1,100,000
Common Class B \| Qurate Retail Chairman Of Board
Stock-based compensation
Options Granted							26,000
Weighted Average GDFV \| $ / shares							$ 5.84
Common Class B \| Board of Directors Chairman \| Performance Shares
Stock-based compensation
Award vesting period							1 year
RSUs/RSAs granted							194,000,000
RSUs/RSAs GDFV \| $ / shares							$ 17.90
Common Class B \| Board of Directors Chairman \| Time-based RSUs
Stock-based compensation
Number Of Tranches In Which Award Is Granted \| tranche					2
RSUs/RSAs granted						38,000	19,000
RSUs/RSAs GDFV \| $ / shares			$ 7.44			$ 7.44	$ 17.90
Common Class B \| Board of Directors Chairman \| Time-Based RSAs
Stock-based compensation
RSUs/RSAs granted					1,100,000
RSUs/RSAs GDFV \| $ / shares		$ 13.65			$ 13.65
Common Class A and B.
Stock-based compensation
Number of shares reserved for issuance		30,000,000.0			30,000,000.0
Common Class A and B. \| Minimum [Member]
Stock-based compensation
Award vesting period					1 year
Term					7 years
Common Class A and B. \| Maximum [Member]
Stock-based compensation
Award vesting period					5 years
Term					10 years
8.0% Series A Cumulative Redeemable Preferred Stock
Stock-based compensation
Preferred Stock Dividends Per Share Shares Issued	0.03
8.0% Series A Cumulative Redeemable Preferred Stock \| RSA and RSU
Stock-based compensation
Preferred Stock Dividends Per Share Shares Issued				0.03
Nonvested awards, number		188			188
8.0% Series A Cumulative Redeemable Preferred Stock \| Restricted Stock Units (RSUs)
Stock-based compensation
Nonvested awards, number		155			155