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REPORTING SEGMENTS AND RELATED INFORMATION - Net sales by reporting segments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information
Net sales	$ 4,009	$ 2,279
Inter-segment eliminations
Segment Reporting Information
Net sales	(140)	(15)
Air Management
Segment Reporting Information
Net sales	1,968	1,419
Air Management | Operating Segments
Segment Reporting Information
Net sales	2,011	1,434
e-Propulsion & Drivetrain
Segment Reporting Information
Net sales	1,419	860
e-Propulsion & Drivetrain | Operating Segments
Segment Reporting Information
Net sales	1,466	860
Fuel Injection
Segment Reporting Information
Net sales	426	0
Fuel Injection | Operating Segments
Segment Reporting Information
Net sales	475	0
Aftermarket
Segment Reporting Information
Net sales	196	0
Aftermarket | Operating Segments
Segment Reporting Information
Net sales	$ 197	$ 0

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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