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Equity Investments - Schedule of Income (Loss) from Equity Investments (Details) - USD ($) $ in Millions | 3 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024
Investments, All Other Investments [Abstract] |  |
Equity investment in publicly listed company | $ 4 | $ 27
Equity method investments | (1) | 0
Non-marketable equity securities (includes NAV) | 1 | (3)
Total income (loss) from equity investments, net | $ 4 | $ 24

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