DERIVATIVE FINANCIAL INSTRUMENTS (Offsetting Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Derivative assets
Gross Amount Recognized	$ 166.7	$ 297.9
Gross Amounts Not Offset, Permitted Under Master Netting Agreements	(101.9)	(128.7)
Net Amount	64.8	169.2
Derivative liabilities
Gross Amount Recognized	162.5	176.3
Gross Amounts Not Offset Permitted Under Master Netting Agreements	(101.9)	(128.7)
Net Amount	$ 60.6	$ 47.6

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