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Fair Value - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Investments in equity securities | $ 63 | $ 107
Available-for-sale debt securities | 173 | 179
Trading securities | 4 | 5
Total assets | 240 | 291
Fair Value, Inputs, Level 1 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Investments in equity securities | 63 | 107
Total assets | 63 | 107
Fair Value, Inputs, Level 2 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Available-for-sale debt securities | 173 | 179
Trading securities | 4 | 5
Total assets | $ 177 | $ 184

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