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Financial Instruments - Summary of Changes in Consolidated Debt (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of detailed information about financial instruments [abstract] |  |  |
Debt at beginning of year | $ 6,971 | $ 7,379 | $ 9,339
Proceeds from new debt instruments | 2,938 | 2,006 | 3,960
Debt repayments | (3,840) | (2,420) | (5,897)
Foreign currency translation and accretion effects | 159 | 6 | (23)
Debt at end of year | $ 6,228 | $ 6,971 | $ 7,379

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