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Finance Expense and Income - Summary of Finance Expense and Income Included in Income Statement (Detail) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2026 | Jun. 30, 2025
Disclosure of finance income expense [line items] |  |
Interest expense | $ (1,541) | $ (1,588)
Interest income | 284 | 240
Interest income on Brazilian tax credits | 61 | 63
Net interest income/(expense) | (1,196) | (1,284)
Accretion expense | (376) | (315)
Interest on pensions | (37) | (37)
Accretion expense and interest on pensions | (413) | (351)
Net foreign exchange gains/(losses) | (128) | (161)
Net gains/(losses) on hedging instruments | (240) | (138)
Bank fees, taxes and other financial expense | (139) | (140)
Other financial income | 9 | 29
Other financial results | (498) | (410)
Net finance income/(expense) excluding exceptional items | (2,107) | (2,046)
Exceptional finance income/(expense) | 2,033 | 368
Net finance income/(expense) | $ (74) | $ (1,678)

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