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RESTRUCTURING - Reserve by type of cost (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | $ 123 | $ 135 | $ 30
Corporate, Non-Segment |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 2 | 45 | 6
Air Management |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 52 | 79 | 60
e-Propulsion & Drivetrain |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 55 | 70 | 6
Fuel Injection |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 54 | 8 | 0
Aftermarket |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 0 | 1 | 0
Employee termination benefits |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 99 | 157 | 44
Employee termination benefits | Corporate, Non-Segment |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 0 | 44 | 0
Employee termination benefits | Air Management |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 34 | 50 | 43
Employee termination benefits | e-Propulsion & Drivetrain |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 12 | 54 | 1
Employee termination benefits | Fuel Injection |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 53 | 8 | 0
Employee termination benefits | Aftermarket |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 0 | 1 | 0
Other |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 64 | 46 | 28
Other | Corporate, Non-Segment |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 2 | 1 | 6
Other | Air Management |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 18 | 29 | 17
Other | e-Propulsion & Drivetrain |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 43 | 16 | 5
Other | Fuel Injection |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | 1 | 0 | 0
Other | Aftermarket |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring expense | $ 0 | $ 0 | $ 0

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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