REPORTABLE SEGMENTS - Schedule of Earnings before interest and income taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information
Segment Adjusted Operating Income	$ 426	$ 421	$ 1,261	$ 1,210
Corporate, including stock-based compensation	76	72	196	194
Restructuring expense (Note 5)	21	56	65	68
Intangible asset amortization expense	17	17	51	51
Accelerated depreciation	27	1	35	4
Commercial contract settlement	0	0	15	0
Adjustments associated with Spin-Off related balances	3	0	14	0
Asset impairment and lease modification	0	2	0	11
Collective bargaining agreement ratification bonus	4	0	4	0
Merger and acquisition expense, net	(5)	2	0	18
Loss (gain) on sale of businesses	6	0	3	(5)
Gain on sale of assets	0	(7)	0	(13)
Other non-comparable items	7	6	16	3
Equity in affiliates’ earnings, net of tax	(6)	(10)	(23)	(23)
Unrealized and realized (gain) loss on equity and debt securities	(2)	60	0	129
Interest expense (income), net	4	(19)	17
Other postretirement expense	4	3	10	8
Earnings from continuing operations before income taxes and noncontrolling interest	270	238	858	762
Turbos & Thermal Technologies
Segment Reporting Information
Segment Adjusted Operating Income	202	214	654	660
Drivetrain & Morse Systems
Segment Reporting Information
Segment Adjusted Operating Income	251	253	770	700
PowerDrive Systems
Segment Reporting Information
Segment Adjusted Operating Income	(19)	(20)	(130)	(74)
Battery & Charging Systems
Segment Reporting Information
Segment Adjusted Operating Income	$ (8)	$ (26)	$ (33)	$ (76)