DISCONTINUED OPERATIONS - Financial Results from Discontinued Operations (Details) - Phinia - Discontinued Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	$ 0	$ 857	$ 1,723	$ 2,496
Cost of sales	0	658	1,362	1,958
Gross profit	0	199	361	538
Selling, general and administrative expenses	0	72	173	228
Restructuring expense	0	3	7	8
Other operating expense, net	52	0	117	33
Operating (loss) income	(52)	124	64	269
Equity in affiliates’ earnings, net of tax	0	(5)	(5)	(8)
Interest expense, net	0	0	0	1
Other postretirement expense (income)	0	(7)	0	(24)
Earnings from discontinued operations before income taxes	(52)	136	69	300
Provision for income taxes	(15)	36	81	75
Net (loss) earnings from discontinued operations attributable to PHINIA	$ (37)	$ 100	$ (12)	$ 225