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Summary of Significant Accounting Policies - Interest and Software (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Summary of Significant Accounting Policies |  |  |
Total interest costs | $ 590 | $ 425 | $ 388
Total capitalized interest costs | $ 63 | $ 29 | $ 13

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