SEGMENT INFORMATION - EBIT by Segment (Details) - USD ($) $ in Millions		3 Months Ended		12 Months Ended
	Nov. 24, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Restructuring costs				$ (169)	$ (48)	$ (34)
Gain on sale of Santa Clara, California site				189	0	0
Gain on sale of land in India				0	0	15
Gain on sale of Shanghai, China facility				0	27	0
Gains on sale of certain precious metals				2	18	53
Goodwill impairment charge		$ 0	$ 0
Intangible assets impairment charge				0	(96)	0
Acquisition and divestiture-related costs				0	(7)	0
Recognition of acquisition inventory fair value step-up				0	0	(1)
Paroc marine recall				(15)	0	0
Loss on sale of Chambery, France DUCS business				0	(30)	0
Loss on sale of Russian operations	$ (33)			0	(33)	0
Gain on remeasurement of Fiberteq equity investment				0	130	0
General corporate expense and other				(230)	(179)	(160)
Total Corporate, other and eliminations				1,667	1,723	1,448
Pension settlement losses				(145)	0	0
Composites | Operating Segments
Segment Reporting Information [Line Items]
Total Corporate, other and eliminations				242	498	376
Insulation | Operating Segments
Segment Reporting Information [Line Items]
Total Corporate, other and eliminations				619	612	446
Roofing | Operating Segments
Segment Reporting Information [Line Items]
Total Corporate, other and eliminations				1,174	831	753
Total Segments | Operating Segments
Segment Reporting Information [Line Items]
Total Corporate, other and eliminations				2,035	1,941	1,575
Corporate Eliminations
Segment Reporting Information [Line Items]
Total Corporate, other and eliminations				(368)	(218)	(127)
Pension Plan
Segment Reporting Information [Line Items]
Pension settlement losses				(145)	1	0
Foreign Plan | Pension Plan
Segment Reporting Information [Line Items]
Pension settlement losses				$ (7)	$ 1	$ 0