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Revenues - Schedule of Revenue by Product Line (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Total Revenues	$ 3,220	$ 3,243	$ 5,301	$ 5,409
Building Materials | Cement
Disaggregation of Revenue [Line Items]
Total Revenues	1,177	1,255	1,918	2,072
Building Materials | Aggregates and other construction materials
Disaggregation of Revenue [Line Items]
Total Revenues	1,219	1,184	1,907	1,907
Building Materials | Interproduct revenues
Disaggregation of Revenue [Line Items]
Total Revenues	(146)	(165)	(246)	(281)
Building Envelope
Disaggregation of Revenue [Line Items]
Total Revenues	$ 970	$ 969	$ 1,722	$ 1,711

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