Derivative instruments - Schedule of Effective Portion of Unrealized Gain (Loss) Recognized in AOCI (Details) - Cash flow hedge - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Total unrealized gains (losses) | $ 113 | $ (323) | $ 98 | $ (469) |
| Foreign currency forward contracts | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Total unrealized gains (losses) | 83 | (503) | 191 | (715) |
| Cross-currency swap contracts | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Total unrealized gains (losses) | 30 | 180 | (53) | 246 |
| Forward interest rate contracts | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Total unrealized gains (losses) | $ 0 | $ 0 | $ (40) | $ 0 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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