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GOODWILL AND INTANGIBLE ASSETS - RECONCILIATION OF CHANGES IN GOODWILL (Details) - USD ($) | 3 Months Ended | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Goodwill [Roll Forward] |  |  |  |
Balance, beginning of the year |  |  | $ 3,396,500,000 |
Impairment | $ 0 | $ 0 | (156,600,000) | $ 0
Effects of exchange rate changes |  |  | 42,800,000 |
Balance, end of the year | 3,282,700,000 |  | 3,282,700,000 |
Technologies & Equipment |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Balance, beginning of the year |  |  | 2,515,700,000 |
Impairment |  |  | (156,600,000) |
Effects of exchange rate changes |  |  | 44,300,000 |
Balance, end of the year | 2,403,400,000 |  | 2,403,400,000 |
Consumables |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Balance, beginning of the year |  |  | 880,800,000 |
Impairment |  |  | 0 |
Effects of exchange rate changes |  |  | (1,500,000) |
Balance, end of the year | $ 879,300,000 |  | $ 879,300,000 |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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