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GOODWILL AND INTANGIBLE ASSETS - NARRATIVE (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Jun. 30, 2021 | Sep. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Goodwill [Line Items] |  |  |  |  |  |
Goodwill impairment | $ 0 |  | $ 0 |  | $ 0 | $ 157
Indefinite-lived intangible asset impairment |  |  |  |  | 0 | $ 39
Developed technology and patents |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Payments to acquire intangible assets |  | $ 3 |  |  |  |
Asset Acquisition, Contingent Consideration, Liability | $ 17 |  |  |  | $ 17 |
Technologies & Equipment |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Goodwill impairment |  |  |  | $ 157 |  |
Technologies & Equipment | Equipment and Instruments Reporting Unit |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |
Indefinite-lived intangible asset impairment |  |  |  | $ 39 |  |

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