OTHER ASSETS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Other Assets [Abstract]
Supply contracts	$ 1,044.6	$ 1,106.2	$ 1,061.8
Other	71.7	64.8	70.0
Other assets	1,116.3	1,171.0	$ 1,131.8
Amortization of Supply Contracts	$ 17.6	$ 17.5