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Investments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Noncash or Part Noncash Acquisitions [Line Items] |  |  |  |
Transfer to Investments | $ 18 | $ 0 | $ 18 | $ 0

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