Revenues - Schedule of Revenue by Product Line (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue [Line Items]
Total Revenues	$ 2,178	$ 2,081
Building Materials \| Cement
Disaggregation of Revenue [Line Items]
Total Revenues	837	741
Building Materials \| Aggregates and other construction materials
Disaggregation of Revenue [Line Items]
Total Revenues	764	688
Building Materials \| Interproduct revenues
Disaggregation of Revenue [Line Items]
Total Revenues	(101)	(100)
Building Envelope
Disaggregation of Revenue [Line Items]
Total Revenues	$ 678	$ 752

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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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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