SEGMENTS - Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment Adjusted EBITDA	$ 294	$ 291	$ 856	$ 841
Interest expense, net	45	54	134	158
Depreciation and amortization	74	71	218	207
Debt extinguishment and refinancing-related costs	0	0	0	3
Termination benefits and other employee-related costs	2	11	22	67
Acquisition related costs	5	4	11	8
Site closure costs	1	0	6	1
Foreign exchange remeasurement losses	4	0	11	8
Long-term employee benefit plan adjustments	3	3	9	8
Stock-based compensation	6	7	19	21
Environmental charge	2	0	2	4
Other adjustments	(3)	(1)	(3)	(1)
Income before income taxes	155	142	427	357
Performance Coatings
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment Adjusted EBITDA	211	221	608	640
Mobility Coatings
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment Adjusted EBITDA	$ 83	$ 70	$ 248	$ 201