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Information about QVC's Operating Segments (Revenue and Adjusted OIBDA by Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Net revenue	$ 2,093	$ 1,965
Adjusted OIBDA Excluding Transaction Related Costs	433	434
QVC-U.S.
Segment Reporting Information [Line Items]
Net revenue	1,417	1,370
Adjusted OIBDA Excluding Transaction Related Costs	326	336
QVC-International
Segment Reporting Information [Line Items]
Net revenue	676	595
Adjusted OIBDA Excluding Transaction Related Costs	$ 107	$ 98

X

- Definition

Adjusted OIBDA during the reporting period. Adjusted OIBDA is defined as revenue less cost of sales, operating expenses, and selling, general and administrative expenses (excluding transaction related costs and stock-based compensation).

+ References

No definition available.

+ Details

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Namespace Prefix:	qvc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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X

- Definition

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.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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Namespace Prefix:
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Period Type: