Segment information - Schedule of depreciation, depletion and amortization (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Depreciation, depletion, amortization and impairment	$ 601	$ 467	$ 1,606	$ 1,288
Americas Materials Solutions
Segment Reporting Information [Line Items]
Depreciation, depletion, amortization and impairment	260	213	715	611
Americas Building Solutions
Segment Reporting Information [Line Items]
Depreciation, depletion, amortization and impairment	99	85	287	249
International Solutions
Segment Reporting Information [Line Items]
Depreciation, depletion, amortization and impairment	$ 242	$ 169	$ 604	$ 428