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SEGMENT INFORMATION (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) segment	Jun. 30, 2022 USD ($)
Segment Reporting, Significant Reconciling Item [Line Items]
Number of reportable segments | segment			3
Disaggregated revenue	$ 2,563	$ 2,601	$ 4,894	$ 4,947
EBIT	487	489	1,021	931
Restructuring costs	(47)	(11)	(65)	(17)
Gain on sale of Shanghai, China facility	0	0	0	27
Gain on sale of Santa Clara, California site	0	0	189	0
Gains on sale of certain precious metals	0	7	2	11
General corporate expense and other	(54)	(44)	(107)	(86)
Impairment loss on Chambery, France assets held for sale	0	(29)	0	(29)
Eliminations
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	(85)	(70)	(153)	(135)
EBIT	(101)	(80)	19	(97)
U.S.
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	1,880	1,802	3,555	3,369
U.S. | Eliminations
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	(85)	(69)	(152)	(132)
U.S. | Residential
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	1,382	1,331	2,611	2,485
U.S. | Residential | Eliminations
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	(83)	(69)	(148)	(129)
U.S. | Commercial and Industrial Sector
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	498	471	944	884
U.S. | Commercial and Industrial Sector | Eliminations
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	(2)	0	(4)	(3)
Europe
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	340	414	674	820
Europe | Eliminations
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	0	(1)	(1)	(3)
Asia Pacific
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	158	188	296	376
Asia Pacific | Eliminations
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	0	0	0	0
Rest of world
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	185	197	369	382
Rest of world | Eliminations
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	0	0	0	0
Composites
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	620	719	1,205	1,433
EBIT	87	154	136	308
Composites | U.S.
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	324	319	627	616
Composites | U.S. | Residential
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	87	94	172	181
Composites | U.S. | Commercial and Industrial Sector
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	237	225	455	435
Composites | Europe
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	135	197	272	402
Composites | Asia Pacific
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	116	145	223	296
Composites | Rest of world
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	45	58	83	119
Insulation
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	905	934	1,824	1,793
EBIT	163	157	319	286
Insulation | U.S.
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	547	576	1,123	1,106
Insulation | U.S. | Residential
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	324	374	694	725
Insulation | U.S. | Commercial and Industrial Sector
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	223	202	429	381
Insulation | Europe
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	201	213	395	410
Insulation | Asia Pacific
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	41	41	72	76
Insulation | Rest of world
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	116	104	234	201
Roofing
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	1,123	1,018	2,018	1,856
EBIT	338	258	547	434
Roofing | U.S.
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	1,094	976	1,957	1,779
Roofing | U.S. | Residential
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	1,054	932	1,893	1,708
Roofing | U.S. | Commercial and Industrial Sector
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	40	44	64	71
Roofing | Europe
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	4	5	8	11
Roofing | Asia Pacific
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	1	2	1	4
Roofing | Rest of world
Segment Reporting, Significant Reconciling Item [Line Items]
Disaggregated revenue	24	35	52	62
Total Segments
Segment Reporting, Significant Reconciling Item [Line Items]
EBIT	$ 588	$ 569	$ 1,002	$ 1,028

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