Segment information - Schedule of depreciation, depletion and amortization (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Depreciation, depletion, and amortization	$ 548	$ 528	$ 1,124	$ 1,005
Americas Materials Solutions
Segment Reporting [Line Items]
Depreciation, depletion, and amortization	239	235	500	455
Americas Building Solutions
Segment Reporting [Line Items]
Depreciation, depletion, and amortization	91	97	184	188
International Solutions
Segment Reporting [Line Items]
Depreciation, depletion, and amortization	$ 218	$ 196	$ 440	$ 362

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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+ Details

- 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.

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+ Details