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Supplemental Financial Information - Other Assets (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Derivative contracts | $ 122 | $ 102
Intangible assets, net | 300 | 296
Equity securities | 302 | 280
Prepaid maintenance | 263 | 258
Other | 58 | 28
Other assets | $ 1,045 | $ 964

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