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Investments - Equity Securities (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]        
Realized loss recognized in gain (loss) on investments, net $ (3) $ (1) $ (5) $ (1)
Unrealized loss recognized in gain (loss) on investments, net 0 0 (21) 0
Realized gain recognized in gain (loss) on investments, net 0 0 0 4
Unrealized gain recognized in gain (loss) on investments, net $ 0 $ 0 $ 0 $ 2