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Risks Arising from Financial Instruments - Summary of Effective Interest Rates at Balance Sheet (Detail) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2026 | Dec. 31, 2025
Before hedging [Member] | Floating interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Interest-bearing financial liabilities | $ 659 | $ 334 | [1]
Before hedging [Member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Interest-bearing financial liabilities | $ 71,659 | $ 72,693 | [1]
Before hedging [Member] | US Dollar [member] | Floating interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 3.90% | 0.00% |
Interest-bearing financial liabilities | $ 200 | $ 0 | [1]
Before hedging [Member] | US Dollar [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 5.30% | 5.30% |
Interest-bearing financial liabilities | $ 41,436 | $ 41,499 | [1]
Before hedging [Member] | Euro [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 2.70% | 2.70% |
Interest-bearing financial liabilities | $ 27,719 | $ 28,593 | [1]
Before hedging [Member] | Chinese Yuan [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 3.90% | 3.80% |
Interest-bearing financial liabilities | $ 35 | $ 38 | [1]
Before hedging [Member] | Canadian Dollar [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 4.40% | 4.50% |
Interest-bearing financial liabilities | $ 541 | $ 566 | [1]
Before hedging [Member] | South Korean Won [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 5.10% | 5.30% |
Interest-bearing financial liabilities | $ 31 | $ 39 | [1]
Before hedging [Member] | Mexican Peso [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 13.30% | 13.20% |
Interest-bearing financial liabilities | $ 228 | $ 225 |
Before hedging [Member] | Pound Sterling [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 2.50% | 2.50% |
Interest-bearing financial liabilities | $ 556 | $ 567 | [1]
Before hedging [Member] | Other currency [member] | Floating interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 11.40% | 11.00% |
Interest-bearing financial liabilities | $ 458 | $ 334 | [1]
Before hedging [Member] | Other currency [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 9.80% | 9.60% |
Interest-bearing financial liabilities | $ 1,115 | $ 1,165 | [1]
After hedging [Member] | Floating interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Interest-bearing financial liabilities | 1,850 | 1,527 | [1]
After hedging [Member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Interest-bearing financial liabilities | $ 70,468 | $ 71,500 | [1]
After hedging [Member] | US Dollar [member] | Floating interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 5.60% | 4.90% |
Interest-bearing financial liabilities | $ 637 | $ 1,193 | [1]
After hedging [Member] | US Dollar [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 5.60% | 5.60% |
Interest-bearing financial liabilities | $ 32,343 | $ 32,965 | [1]
After hedging [Member] | Euro [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 2.60% | 2.60% |
Interest-bearing financial liabilities | $ 28,390 | $ 29,274 | [1]
After hedging [Member] | Chinese Yuan [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 2.70% | 2.70% |
Interest-bearing financial liabilities | $ 2,765 | $ 2,768 | [1]
After hedging [Member] | Canadian Dollar [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 4.30% | 4.30% |
Interest-bearing financial liabilities | $ 2,642 | $ 2,668 | [1]
After hedging [Member] | South Korean Won [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 2.70% | 2.70% |
Interest-bearing financial liabilities | $ 1,931 | $ 2,049 | [1]
After hedging [Member] | Mexican Peso [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 9.60% | 13.20% |
Interest-bearing financial liabilities | $ 828 | $ 225 |
After hedging [Member] | Pound Sterling [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 2.90% | 2.70% |
Interest-bearing financial liabilities | $ 35 | $ 37 | [1]
After hedging [Member] | Other currency [member] | Floating interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 11.50% | 10.90% |
Interest-bearing financial liabilities | $ 1,213 | $ 333 | [1]
After hedging [Member] | Other currency [member] | Fixed interest rate [member] |  |  |
Disclosure of offsetting financial assets and liabilities [line items] |  |  |
Effective interest rate | 9.70% | 9.50% |
Interest-bearing financial liabilities | $ 1,535 | $ 1,515 | [1]
[1] | Amended to conform to the 2025 presentation

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