Segment Information (Total Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 20,960	$ 21,035
Operating Segments | Performance and Essential Materials Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	13,430	13,538
Operating Segments | Housing and Infrastructure Products Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	5,078	4,888
Corporate and other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 2,452	$ 2,609