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SEGMENT AND GEOGRAPHIC INFORMATION - DEPRECIATION AND AMORTIZATION (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Reconciliation of Depreciation by Segment [Line Items] |  |  |
Depreciation and amortization | $ 334 | $ 323 | $ 331
Operating Segments | Technologies & Equipment |  |  |
Reconciliation of Depreciation by Segment [Line Items] |  |  |
Depreciation and amortization | 261 | 258 | 238
Operating Segments | Consumables |  |  |
Reconciliation of Depreciation by Segment [Line Items] |  |  |
Depreciation and amortization | 61 | 54 | 91
All Other |  |  |
Reconciliation of Depreciation by Segment [Line Items] |  |  |
Depreciation and amortization | $ 12 | $ 11 | $ 2

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