Revenue from contracts with customers - Additional Information (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
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| Disaggregation Of Revenue [Line Items] | ||
| Uncollected amounts receivable | $ 73 | $ 75 |
| Contract with customer | $ 52 | $ 54 |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-04-01 | Maximum | ||
| Disaggregation Of Revenue [Line Items] | ||
| Period of satisfaction of contract with customer | 1 year |
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 of transaction price allocated to performance obligation that has not been recognized as revenue. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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