DISCONTINUED OPERATIONS - Schedule of Financial Results from Discontinued Operations (Details) - Phinia - Discontinued operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	$ 0	$ 887	$ 0	$ 1,723
Cost of sales	0	699	0	1,362
Gross profit	0	188	0	361
Selling, general and administrative expenses	0	88	0	173
Restructuring expense	0	3	0	7
Other operating expense, net	14	47		65
Operating (loss) income	(14)	50	(24)	116
Equity in affiliates’ earnings, net of tax	0	(2)	0	(5)
(Loss) earnings from discontinued operations before income taxes	(14)	52	(24)	121
(Benefit) provision for income taxes	(2)	76	(5)	96
Net (loss) earnings from discontinued operations attributable to PHINIA	$ (12)	$ (24)	$ (19)	$ 25