LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Financing arrangements - Letters of credit & Surety bonds (Details) $ in Millions	Mar. 31, 2019 USD ($)
Accounts receivable securitization borrowings
Financing Arrangements
Outstanding letters of credit	$ 14.9
Letter of Credit Agreements
Financing Arrangements
Outstanding letters of credit	15.5
Surety bonds
Financing Arrangements
Outstanding surety bonds under uncollateralized bond programs	$ 48.5