OTHER OPERATING EXPENSE, NET - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Merger and acquisition expense, net	$ 23	$ 9	$ 48
Loss on change in estimate of the expected earn-out estimate	8
Asset impairments and lease modifications	29	30	0
Asset impairments	20	30	0
Gain on sale of assets	13	0	0
Spin-Off of PHINIA	10	0	0
Gain (loss) on divestiture	5	$ 13	$ (29)
BorgWarner Romeo Power LLC
Schedule of Equity Method Investments [Line Items]
Gain (loss) on divestiture	22
Previous Divestiture
Schedule of Equity Method Investments [Line Items]
Gain (loss) on divestiture	(9)
ePropulsion
Schedule of Equity Method Investments [Line Items]
Gain (loss) on divestiture	(7)
Water Valley
Schedule of Equity Method Investments [Line Items]
Gain (loss) on divestiture	(22)
Trade Names
Schedule of Equity Method Investments [Line Items]
Asset impairments	$ 30