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ASSETS AND LIABILITIES HELD FOR SALE - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Liabilities held for sale	$ 22	$ 0
Held-for-sale | e-Propulsion & Drivetrain Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale	105
Goodwill	18
Liabilities held for sale	$ 22

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