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Risks Arising from Financial Instruments - Summary of Estimated Impact on Changes in the Price of Commodities (Detail) - Commodity price risk [member] - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Aluminum [member] |  |
Disclosure of sensitivity analysis for each type of commodity price risk [line items] |  |
Volatility of prices | 19.00% | 31.00%
Pre-tax impact on equity Prices increases | $ 337 | $ 665
Pre-tax impact on equity Prices decrease | $ (337) | $ (665)
Energy [member] |  |
Disclosure of sensitivity analysis for each type of commodity price risk [line items] |  |
Volatility of prices | 52.00% | 49.00%
Pre-tax impact on equity Prices increases | $ 130 | $ 206
Pre-tax impact on equity Prices decrease | $ (130) | $ (206)
Corn [member] |  |
Disclosure of sensitivity analysis for each type of commodity price risk [line items] |  |
Volatility of prices | 27.00% | 22.00%
Pre-tax impact on equity Prices increases | $ 78 | $ 72
Pre-tax impact on equity Prices decrease | $ (78) | $ (72)
Wheat [member] |  |
Disclosure of sensitivity analysis for each type of commodity price risk [line items] |  |
Volatility of prices | 35.00% | 52.00%
Pre-tax impact on equity Prices increases | $ 56 | $ 66
Pre-tax impact on equity Prices decrease | $ (56) | $ (66)
Plastic [member] |  |
Disclosure of sensitivity analysis for each type of commodity price risk [line items] |  |
Volatility of prices | 15.00% | 32.00%
Pre-tax impact on equity Prices increases | $ 14 | $ 25
Pre-tax impact on equity Prices decrease | $ (14) | $ (25)
Rice [member] |  |
Disclosure of sensitivity analysis for each type of commodity price risk [line items] |  |
Volatility of prices | 26.00% | 19.00%
Pre-tax impact on equity Prices increases | $ 13 | $ 19
Pre-tax impact on equity Prices decrease | $ (13) | $ (19)
Sugar [member] |  |
Disclosure of sensitivity analysis for each type of commodity price risk [line items] |  |
Volatility of prices | 29.00% | 22.00%
Pre-tax impact on equity Prices increases | $ 26 | $ 21
Pre-tax impact on equity Prices decrease | $ (26) | $ (21)

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