Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Total revenues	$ 10,777	$ 10,206	$ 18,147	$ 16,962
Americas Materials Solutions
Disaggregation of Revenue [Line Items]
Total revenues	4,957	4,509	7,681	6,752
Americas Building Solutions
Disaggregation of Revenue [Line Items]
Total revenues	2,117	2,159	3,785	3,841
International Solutions
Disaggregation of Revenue [Line Items]
Total revenues	3,703	3,538	6,681	6,369
Essential Materials
Disaggregation of Revenue [Line Items]
Total revenues	3,227	2,741	5,559	4,679
Essential Materials \| Americas Materials Solutions
Disaggregation of Revenue [Line Items]
Total revenues	1,638	1,365	2,782	2,241
Essential Materials \| Americas Building Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Essential Materials \| International Solutions
Disaggregation of Revenue [Line Items]
Total revenues	1,589	1,376	2,777	2,438
Road Solutions
Disaggregation of Revenue [Line Items]
Total revenues	4,669	4,536	7,381	7,038
Road Solutions \| Americas Materials Solutions
Disaggregation of Revenue [Line Items]
Total revenues	3,319	3,144	4,899	4,511
Road Solutions \| Americas Building Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Road Solutions \| International Solutions
Disaggregation of Revenue [Line Items]
Total revenues	1,350	1,392	2,482	2,527
Essential Materials and Road Solutions \| Transferred over Time
Disaggregation of Revenue [Line Items]
Total revenues	2,168	2,157	3,194	3,190
Essential Materials and Road Solutions \| Americas Materials Solutions \| Transferred over Time
Disaggregation of Revenue [Line Items]
Total revenues	1,831	1,709	2,569	2,347
Essential Materials and Road Solutions \| International Solutions \| Transferred over Time
Disaggregation of Revenue [Line Items]
Total revenues	337	448	625	843
Building & Infrastructure Solutions
Disaggregation of Revenue [Line Items]
Total revenues	1,330	1,282	2,459	2,356
Building & Infrastructure Solutions \| Transferred over Time
Disaggregation of Revenue [Line Items]
Total revenues	118	130	228	241
Building & Infrastructure Solutions \| Americas Materials Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Building & Infrastructure Solutions \| Americas Building Solutions
Disaggregation of Revenue [Line Items]
Total revenues	764	697	1,355	1,265
Building & Infrastructure Solutions \| Americas Building Solutions \| Transferred over Time
Disaggregation of Revenue [Line Items]
Total revenues	15	14	26	28
Building & Infrastructure Solutions \| International Solutions
Disaggregation of Revenue [Line Items]
Total revenues	566	585	1,104	1,091
Building & Infrastructure Solutions \| International Solutions \| Transferred over Time
Disaggregation of Revenue [Line Items]
Total revenues	103	116	202	213
Outdoor Living Solutions
Disaggregation of Revenue [Line Items]
Total revenues	1,551	1,647	2,748	2,889
Outdoor Living Solutions \| Americas Materials Solutions
Disaggregation of Revenue [Line Items]
Total revenues	0	0	0	0
Outdoor Living Solutions \| Americas Building Solutions
Disaggregation of Revenue [Line Items]
Total revenues	1,353	1,462	2,430	2,576
Outdoor Living Solutions \| International Solutions
Disaggregation of Revenue [Line Items]
Total revenues	$ 198	$ 185	$ 318	$ 313