DEBT Debt (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Debt [Line Items]
Commercial paper	$ 120.3	$ 114.4
Current maturities of long-term debt and finance leases	2.4	1.8
Commercial paper and current maturities of long-term debt	122.7	116.2
Long-term debt and finance leases	12.6	8.8
Total debt and finance leases	$ 135.3	$ 125.0
Commercial Paper [Member]
Debt [Line Items]
Weighted Average Interest Rate	0.05%	0.06%

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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Amount of short-term and long-term debt and lease obligation.

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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