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Guarantor/Non-Guarantor Subsidiary Financial Information (Narrative) (Details) | Mar. 31, 2018
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Guarantor Non-guarantor Subsidiary Financial Information [Abstract] |
Subsidiary Guarantors, Ownership Percentage | 100.00%

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- Definition Guarantor/Non-guarantor Subsidiary Financial Information [Abstract] + References No definition available. + Details
Name: | qvc_GuarantorNonGuarantorSubsidiaryFinancialInformationAbstract
Namespace Prefix: | qvc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The percentage of the parent entity’s ownership of the subsidiary guarantors, expressed as a percentage. + References No definition available. + Details
Name: | qvc_SubsidiaryGuarantorsOwnershipPercentage
Namespace Prefix: | qvc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant