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LONG-TERM DEBT - Surety Bonds, Letters of Credit and Guarantees (Narrative) (Details) $ in Millions | Dec. 31, 2017 USD ($)
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Surety bonds |
Guarantor Obligations [Line Items] |
Outstanding surety bonds, commercial standby letters of credit and bank guarantees | $ 73.5
Commercial standby letters of credit |
Guarantor Obligations [Line Items] |
Outstanding surety bonds, commercial standby letters of credit and bank guarantees | 164.2
Bank guarantees |
Guarantor Obligations [Line Items] |
Outstanding surety bonds, commercial standby letters of credit and bank guarantees | 37.3
Cash secured bank guarantees |
Guarantor Obligations [Line Items] |
Outstanding surety bonds, commercial standby letters of credit and bank guarantees | 17.6
Letters of credit collateralized |
Guarantor Obligations [Line Items] |
Outstanding surety bonds, commercial standby letters of credit and bank guarantees | $ 25.4

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- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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