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Long-Term Debt - Debt Securities That Are Not Reported At Fair Value (Details)
$ in Millions
Mar. 31, 2026
USD ($)
Senior debentures  
Debt Instrument [Line Items]  
Fair value of debt securities that are not reported at fair value $ 31
QVC senior secured notes  
Debt Instrument [Line Items]  
Fair value of debt securities that are not reported at fair value $ 928