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REPORTING SEGMENTS AND RELATED INFORMATION - Net sales by reporting segments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting Information |  |  |  |
Net sales | $ 3,758 | $ 1,426 | $ 7,767 | $ 3,705
Inter-segment eliminations |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | (139) | (7) | (279) | (22)
Air Management |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1,818 | 819 | 3,786 | 2,238
Air Management | Operating Segments |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1,854 | 826 | 3,865 | 2,260
e-Propulsion & Drivetrain |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1,294 | 607 | 2,713 | 1,467
e-Propulsion & Drivetrain | Operating Segments |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1,337 | 607 | 2,803 | 1,467
Fuel Injection |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 424 | 0 | 850 | 0
Fuel Injection | Operating Segments |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 480 | 0 | 955 | 0
Aftermarket |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 222 | 0 | 418 | 0
Aftermarket | Operating Segments |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | $ 226 | $ 0 | $ 423 | $ 0

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