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Inventories (Detail) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
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Inventory Disclosure [Abstract] |  |
Raw materials | $ 5,500 | $ 5,421
Work in process and other | 3,237 | 3,150
Finished manufactured goods | 5,115 | 4,898
Goods acquired for resale | 10,182 | 10,539
Total inventory | $ 24,034 | $ 24,008

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