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LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Financing arrangements - Leterrs of credit & Surety bonds (Details)
$ in Millions
Jun. 30, 2017
USD ($)
Accounts receivable securitization program  
Financing Arrangements  
Outstanding letters of credit $ 19.0
Letter of Credit Agreements  
Financing Arrangements  
Outstanding letters of credit 19.6
Surety bonds  
Financing Arrangements  
Outstanding surety bonds under uncollateralized bond programs $ 59.4