Supplemental cash flow information (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Supplemental Cash Flow Elements [Abstract] | |||
| Interest paid | $ 411 | $ 497 | $ 504 |
| Income taxes paid | 369 | 302 | 211 |
| Operating cash flows used for operating leases | (169) | (159) | (161) |
| Operating cash flows used for finance leases | (19) | (16) | (11) |
| Financing cash flows used for finance leases | (106) | (82) | (55) |
| Accrued purchases of property, plant and equipment | 90 | 72 | 81 |
| Right-of-use assets obtained in exchange for new operating lease liabilities | 197 | 244 | 166 |
| Right-of-use assets obtained in exchange for new finance lease liabilities | 223 | 150 | 89 |
| Equity contribution from Holcim related to the settlement of Related-party notes payable | $ 1,999 | $ 0 | $ 0 |
| X | ||||||||||
- Definition Equity Contribution From Parent No definition available.
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- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of interest paid on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash outflow for principal payment on finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in right-of-use asset obtained in exchange for finance lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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