Revenue - Primary geographic markets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Total revenues	$ 37,447	$ 35,572	$ 34,949
Essential Materials
Disaggregation of Revenue [Line Items]
Total revenues	10,374	9,560	9,459
Road Solutions
Disaggregation of Revenue [Line Items]
Total revenues	17,089	16,310	15,666
Road Solutions | Recognized over time
Disaggregation of Revenue [Line Items]
Total revenues	8,229	8,306	8,150
Building and Infrastructure Solutions
Disaggregation of Revenue [Line Items]
Total revenues	4,868	4,567	4,698
Building and Infrastructure Solutions | Recognized over time
Disaggregation of Revenue [Line Items]
Total revenues	464	567	643
Outdoor Living Solutions
Disaggregation of Revenue [Line Items]
Total revenues	5,116	5,135	5,126
Americas Materials Solutions
Disaggregation of Revenue [Line Items]
Total revenues	17,029	16,173	15,435
Americas Materials Solutions | Essential Materials
Disaggregation of Revenue [Line Items]
Total revenues	5,195	4,793	4,583
Americas Materials Solutions | Road Solutions
Disaggregation of Revenue [Line Items]
Total revenues	11,834	11,380	10,852
Americas Materials Solutions | Road Solutions | Recognized over time
Disaggregation of Revenue [Line Items]
Total revenues	6,578	6,426	6,146
Americas Materials Solutions | Building and Infrastructure Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Americas Materials Solutions | Outdoor Living Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Americas Building Solutions
Disaggregation of Revenue [Line Items]
Total revenues	7,122	7,059	7,017
Americas Building Solutions | Essential Materials
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Americas Building Solutions | Road Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Americas Building Solutions | Building and Infrastructure Solutions
Disaggregation of Revenue [Line Items]
Total revenues	2,632	2,569	2,524
Americas Building Solutions | Building and Infrastructure Solutions | Recognized over time
Disaggregation of Revenue [Line Items]
Total revenues	51	81	70
Americas Building Solutions | Outdoor Living Solutions
Disaggregation of Revenue [Line Items]
Total revenues	4,490	4,490	4,493
International Solutions
Disaggregation of Revenue [Line Items]
Total revenues	13,296	12,340	12,497
International Solutions | Essential Materials
Disaggregation of Revenue [Line Items]
Total revenues	5,179	4,767	4,876
International Solutions | Road Solutions
Disaggregation of Revenue [Line Items]
Total revenues	5,255	4,930	4,814
International Solutions | Road Solutions | Recognized over time
Disaggregation of Revenue [Line Items]
Total revenues	1,651	1,880	2,004
International Solutions | Building and Infrastructure Solutions
Disaggregation of Revenue [Line Items]
Total revenues	2,236	1,998	2,174
International Solutions | Building and Infrastructure Solutions | Recognized over time
Disaggregation of Revenue [Line Items]
Total revenues	413	486	573
International Solutions | Outdoor Living Solutions
Disaggregation of Revenue [Line Items]
Total revenues	626	645	633
United States
Disaggregation of Revenue [Line Items]
Total revenues	22,834	21,834	20,930
United States | Americas Materials Solutions
Disaggregation of Revenue [Line Items]
Total revenues	15,882	14,975	14,088
United States | Americas Building Solutions
Disaggregation of Revenue [Line Items]
Total revenues	6,814	6,736	6,692
United States | International Solutions
Disaggregation of Revenue [Line Items]
Total revenues	138	123	150
Rest of World
Disaggregation of Revenue [Line Items]
Total revenues	3,473	2,720	2,305
Rest of World | Americas Materials Solutions
Disaggregation of Revenue [Line Items]
Total revenues	1,147	1,198	1,347
Rest of World | Americas Building Solutions
Disaggregation of Revenue [Line Items]
Total revenues	308	323	325
Rest of World | International Solutions
Disaggregation of Revenue [Line Items]
Total revenues	2,018	1,199	633
United Kingdom
Disaggregation of Revenue [Line Items]
Total revenues	3,767	3,994	4,312
United Kingdom | Americas Materials Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
United Kingdom | Americas Building Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
United Kingdom | International Solutions
Disaggregation of Revenue [Line Items]
Total revenues	3,767	3,994	4,312
Rest of Europe
Disaggregation of Revenue [Line Items]
Total revenues	7,373	7,024	7,402
Rest of Europe | Americas Materials Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Rest of Europe | Americas Building Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0
Rest of Europe | International Solutions
Disaggregation of Revenue [Line Items]
Total revenues	$ 7,373	$ 7,024	$ 7,402
Republic of Ireland
Disaggregation of Revenue [Line Items]
Revenue percentage by region	2.00%	2.00%	3.00%