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Investments in Equity Securities (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Debt and Equity Securities, FV-NI [Line Items]    
Carrying amount of investments $ 42 $ 42
Assets 2,742 2,736
Liabilities $ 1,956 2,058
Variable Interest Entity, Primary Beneficiary    
Debt and Equity Securities, FV-NI [Line Items]    
Equity ownership percentage 70.00%  
Assets $ 154 178
Liabilities $ 79 $ 82