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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract] |
Firm Commitments and Options to Purchase Aircraft and Summary of Commitments | As of December 31, 2022, United had firm commitments to purchase aircraft from The Boeing Company ("Boeing") and Airbus S.A.S. ("Airbus") presented in the table below:
|  |  |  | Scheduled Aircraft Deliveries
Aircraft Type |  | Number of Firm Commitments (a) |  | 2023 |  | 2024 |  | After 2024
787 |  | 102 |  |  | 2 |  |  | 8 |  |  | 92 |
737 MAX |  | 433 |  |  | 135 |  |  | 88 |  |  | 210 |
A321neo |  | 70 |  |  | 12 |  |  | 31 |  |  | 27 |
A321XLR |  | 50 |  |  | — |  |  | — |  |  | 50 |
A350 |  | 45 |  |  | — |  |  | — |  |  | 45 |
(a) United also has options and purchase rights for additional aircraft. |  |  |  |
Summary of Commitments | The table below summarizes United's commitments as of December 31, 2022, which include aircraft and related spare engines, aircraft improvements and all non-aircraft capital commitments (in billions):
2023 |  | $ | 10.2 |
2024 |  | 8.0 |
2025 |  | 7.8 |
2026 |  | 5.9 |
2027 |  | 5.0 |
After 2027 |  | 16.6 |
|  | $ | 53.5 |

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- Definition Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount. + References No definition available. + Details
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- Definition Tabular disclosure of unconditional purchase obligation not recognized as liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308 + Details
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