LONG-TERM DEBT AND FINANCING ARRANGEMENTS (Financing arrangements - Letters of credit & Surety bonds) (Details) $ in Millions	Sep. 30, 2019 USD ($)
Accounts receivable securitization borrowings
Financing Arrangements
Outstanding letters of credit	$ 12.2
Letter of Credit Agreements
Financing Arrangements
Outstanding letters of credit	12.8
Surety bonds
Financing Arrangements
Outstanding surety bonds under uncollateralized bond programs	$ 62.3