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ACQUISITIONS AND DIVESTITURES (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Divestiture/Spinoff [Abstract] |  |  |
Pretax gain on sale | $ (3,000,000) | $ (1,000,000) | $ 0
Pre-separation funding | 0 | 0 | 2,801,000,000
Income before taxes | 6,012,000,000 | 7,559,000,000 | 7,487,000,000
Goodwill | 16,058,000,000 | 15,563,000,000 |
Assets | 64,586,000,000 | $ 58,679,000,000 | $ 57,773,000,000
Garrett [Member] |  |  |
Divestiture/Spinoff [Abstract] |  |  |
Spinoff Transaction Share Conversion |  |  | 0.1
Pre-separation funding |  |  | $ 1,600,000,000
Resideo [Member] |  |  |
Divestiture/Spinoff [Abstract] |  |  |
Spinoff Transaction Share Conversion |  |  | 0.17
Pre-separation funding |  |  | $ 1,200,000,000
Spinoff [Member] |  |  |
Divestiture/Spinoff [Abstract] |  |  |
Income before taxes |  |  | 400,000,000
Goodwill |  |  | 2,800,000,000
Assets |  |  | 5,500,000,000
Liabilities |  |  | 7,200,000,000
Total Acquisitions [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Purchase price | 261,000,000 |  | 535,000,000
Divestiture/Spinoff [Abstract] |  |  |
Goodwill | $ 167,000,000 |  |
Transnorm [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Name of acquired entity | Transnorm |  |
Divestiture/Spinoff [Abstract] |  |  |
Goodwill |  |  | $ 380,000,000
Sparta Systems [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Name of acquired entity | Sparta Systems |  |
Purchase price | $ 1,300,000,000 |  |

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