Revenue from contracts with customers - Receivables, Contract Assets and Contract Liabilities (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Revenue from Contract with Customer [Abstract] | ||
| Accounts receivables, net | $ 311 | $ 162 |
| Current contract liabilities (classified within other current liabilities) | (70) | (58) |
| Non-current contract liabilities (classified within other non-current liabilities) | $ (69) | $ (36) |
| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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