COMMITMENTS AND CONTINGENCIES Other (Details) € in Millions	3 Months Ended
Mar. 31, 2020 EUR (€)	Jun. 01, 2016
Document Period End Date	Mar. 31, 2020
Slovak Republic
Loss Contingency, Pending Claims, Number		4
Loss Contingency, Estimate of Possible Loss	€ 69.0
Loss Contingency, Claims Dismissed, Value	€ 26.2
PN Third Case and PN Fourth Case [Domain] \| Slovak Republic
Loss Contingency, Pending Claims, Number	1
PN First Case [Domain] \| Slovak Republic
Loss Contingency, Pending Claims, Number	2
Loss Contingency, Estimate of Possible Loss	€ 8.3
PN First Case and PN Second Case [Domain] \| Slovak Republic
Loss Contingency, Pending Claims, Number	2
PN Second Case [Domain] \| Slovak Republic
Loss Contingency, Estimate of Possible Loss	€ 8.3

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118943654&loc=d3e12021-110248

Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant