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RESTRUCTURING ACTIONS 2020 Global Restructuring Plan (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring Reserve | $ 16.9 | $ 7.2 | $ 16.9 | $ 19.1 | $ 7.5
Cash payments | (4.8) | $ (3.2) |  |  |
2020 Global Restructuring Plan [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring costs incurred |  |  | 45.1 | $ 43.8 |
Restructuring and Related Cost, Expected Cost | 3.0 |  | 3.0 |  |
Restructuring Reserve | 12.8 |  | $ 12.8 |  |
Cash payments | $ (4.5) |  |  |  |

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