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v3.23.1

Debt - Narrative (Details) $ in Millions | Mar. 31, 2023 USD ($)
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Debt Instrument [Line Items] |
Unamortized debt discount | $ 356
Revolving Credit Facility | United Airlines, Inc. | Secured Debt |
Debt Instrument [Line Items] |
Available under revolving credit facility | $ 1,750

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