ACCOUNTS AND OTHER RECEIVABLES - Allowance for Doubtful Accounts (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at Beginning of Period	$ 42.0
Add: Charges	(2.3)	$ 19.4
Less: Net Charge-offs/ (Recoveries) and Other	0.4
Balance at End of Period	39.3
Trade accounts receivable
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at Beginning of Period	19.2
Add: Charges	(1.8)
Less: Net Charge-offs/ (Recoveries) and Other	0.4
Balance at End of Period	17.0
Trade notes receivable
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at Beginning of Period	0.0
Add: Charges	0.1
Less: Net Charge-offs/ (Recoveries) and Other	0.0
Balance at End of Period	0.1
Total trade receivables
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at Beginning of Period	19.2
Add: Charges	(1.7)
Less: Net Charge-offs/ (Recoveries) and Other	0.4
Balance at End of Period	17.1
Other notes receivable
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at Beginning of Period	22.8
Add: Charges	(0.6)
Less: Net Charge-offs/ (Recoveries) and Other	0.0
Balance at End of Period	$ 22.2