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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