DISCONTINUED OPERATIONS - Schedule of Financial Results from Discontinued Operations (Details) - Phinia - Discontinued operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 1,723
Cost of sales	0	0	0	1,362
Gross profit	0	0	0	361
Selling, general and administrative expenses	0	0	0	173
Restructuring expense	0	0	0	7
Other operating expense, net	4	52		117
Operating (loss) income	(4)	(52)	(28)	64
Equity in affiliates’ earnings, net of tax	0	0	0	(5)
(Loss) earnings from discontinued operations before income taxes	(4)	(52)	(28)	69
Provision (benefit) for income taxes	4	(15)	(1)	81
Net loss from discontinued operations attributable to PHINIA	$ (8)	$ (37)	$ (27)	$ (12)