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Fair Value Measurements - Fair Value, Assets Measured on Nonrecurring Basis, Valuation Techniques (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Aircraft value publications |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] |  |
Range of fair value of assets measured on nonrecurring basis valuation techniques | $ 23 |
Aircraft value publications | Minimum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] |  |
Range of fair value of assets measured on nonrecurring basis valuation techniques | 21 |
Aircraft value publications | Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] |  |
Range of fair value of assets measured on nonrecurring basis valuation techniques | 27 |
Aircraft condition adjustments |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] |  |
Range of fair value of assets measured on nonrecurring basis valuation techniques | (8) |
Aircraft condition adjustments | Minimum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] |  |
Range of fair value of assets measured on nonrecurring basis valuation techniques | (8) |
Aircraft condition adjustments | Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] |  |
Range of fair value of assets measured on nonrecurring basis valuation techniques | 0 |
Fair Value Measurements Nonrecurring |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] |  |
Assets, fair value disclosure | 53 | $ 14
Operating lease equipment | Fair Value Measurements Nonrecurring |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] |  |
Assets, fair value disclosure | 15 |
Operating lease equipment | Level 3 | Fair Value Measurements Nonrecurring | Valuation, Market Approach |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items] |  |
Assets, fair value disclosure | $ 15 |

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- Definition The range represents the sume of the highest and lowest values for all aircraft subject to fair value measurement, according to the third party aircraft valuation publications that we use in our valuation process. + References No definition available. + Details
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- Definition Fair value portion of asset recognized for present right to economic benefit. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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