Derivative instruments - Schedule of Effective Portion of Unrealized Gain (Loss) Recognized in AOCI (Details) - Cash flow hedge - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Derivative Instruments Gain Loss [Line Items] | |||
| Total unrealized (losses) gains | $ (250) | $ 506 | $ 28 |
| Foreign currency forward contracts | |||
| Derivative Instruments Gain Loss [Line Items] | |||
| Total unrealized (losses) gains | (464) | 585 | (14) |
| Cross-currency swap contracts | |||
| Derivative Instruments Gain Loss [Line Items] | |||
| Total unrealized (losses) gains | 214 | (79) | 73 |
| Forward interest rate contracts | |||
| Derivative Instruments Gain Loss [Line Items] | |||
| Total unrealized (losses) gains | $ 0 | $ 0 | $ (31) |
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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/disclosureRef
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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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