Summary of significant accounting policies (Details) $ in Billions |
6 Months Ended | |
|---|---|---|
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Jun. 30, 2026
USD ($)
segment
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Dec. 31, 2025
USD ($)
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| Accounting Policies [Abstract] | ||
| Number of operating segments | segment | 1 | |
| Accumulated depreciation and amortization on property, plant and equipment | $ | $ 9.4 | $ 11.1 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion, and amortization of property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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