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Investments and Variable Interest Entities - Schedule of Investments (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Investments [Abstract] |  |
Equity method | $ 7,850 | $ 7,615
Marketable equity securities | 56 | 39
Nonmarketable equity securities | 1,410 | 1,482
Other investments | 562 | 559
Total investments | 9,878 | 9,694
Less: Current investments | 330 | 310
Noncurrent investments | $ 9,548 | $ 9,385

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