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INCOME TAXES - Narrative (Details) - USD ($) $ in Millions |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 30, 2019 | Jun. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Effective income tax rate reconciliation (in percent) |  |  |  | 19.00% | 41.00% | 37.00% |
Tax holiday, tax benefit |  |  |  | $ 76 | $ 36 | $ 26 |
Foreign rate differentials |  |  |  | 36 | 21 | 35 |
Tax adjustment |  |  |  | 34 |  |  |
Tax benefit associated with tax holiday |  |  |  | 28 |  |  |
Net tax on remittance of foreign earnings |  |  | $ 49 | 43 | 93 | 22 |
Valuation allowance adjustments, net |  |  |  | 39 | 53 | (2) |
Effective income tax rate reconciliation, tax credit, foreign, amount |  |  |  |  |  | (22) |
Effective income tax rate reconciliation, global realignment plan |  |  |  |  | 11 |  |
Effective income tax rate reconciliation, other adjustments, amount |  |  |  |  | 8 |  |
Effective income tax rate reconciliation, deduction, other postretirement expense, amount |  |  |  |  | 6 |  |
Interest expense |  |  |  | 16 | 21 | 15 |
Payment for penalties and interest accrued |  |  |  | 51 | 69 |  |
Unrecognized tax benefits that would impact effective tax rate |  |  |  | 242 |  |  |
Unrecognized tax benefits |  |  |  | 221 | 231 | $ 146 | $ 120
Operating loss carryforwards, state and local |  |  |  | $ 619 |  |  |
Income tax holiday, expiration term of subsidiaries |  |  |  | 3 years |  |  |
Deferred tax liabilities, undistributed foreign earnings |  |  |  | $ 146 | 156 |  |
Deferred tax liability not reported, undistributed earnings of foreign subsidiaries |  |  |  | 1,100 |  |  |
Amount of unrecognized deferred tax liability |  |  |  | 70 |  |  |
Tax benefit associated with restructuring |  |  |  |  | 19 |  |
Other current liabilities |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Unrecognized tax benefits |  |  |  | 21 |  |  |
BorgWarner Morse TEC LLC |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Tax expense on derecognition of subsidiary | $ 173 |  |  |  |  |  |
Non-U.S. Tax Jurisdiction |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Tax holiday, tax benefit |  |  |  | 55 |  |  |
Foreign rate differentials |  | $ 20 |  |  |  |  |
Tax adjustment |  |  |  | 36 |  |  |
Operating loss carryforwards |  |  |  | 2,400 |  |  |
Operating loss carryforwards, subject to expiration |  |  |  | 1,500 |  |  |
Operating loss carryforwards, not subject to expiration |  |  |  | 870 |  |  |
Operating loss carryforwards, valuation allowance |  |  |  | 474 |  |  |
Income tax holiday, aggregate dollar amount |  |  |  | 76 | $ 36 |  |
State and Local Jurisdiction |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |
Operating loss carryforwards, valuation allowance |  |  |  | 16 |  |  |
Tax credit carryforwards, other |  |  |  | 28 |  |  |
Tax credit carryforward, valuation allowance |  |  |  | $ 28 |  |  |

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