SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowances and Reserves, Balance Beginning of Year	$ 273.6	$ 339.7	$ 368.8
Charges to Earnings	23.3	(9.7)	5.1
Other	0.6	(32.3)	(14.8)
Deductions	(35.8)	(24.1)	(19.4)
Valuation Allowances and Reserves, Balance End of Year	261.7	273.6	339.7
Allowance for Doubtful Accounts, Current
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowances and Reserves, Balance Beginning of Year	16.5	20.4	18.3
Charges to Earnings	0.4	5.6	4.3
Other	1.0	(5.4)	1.7
Deductions	(1.7)	(4.1)	(3.9)
Valuation Allowances and Reserves, Balance End of Year	16.2	16.5	20.4
Allowance for Doubtful Accounts, Noncurrent
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowances and Reserves, Balance Beginning of Year	25.2	27.4	28.6
Charges to Earnings	1.1	(1.5)	3.2
Other	1.5	(0.4)	(2.1)
Deductions	(4.5)	(0.3)	(2.3)
Valuation Allowances and Reserves, Balance End of Year	23.3	25.2	27.4
Reserve for inventory
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowances and Reserves, Balance Beginning of Year	83.3	76.8	77.9
Charges to Earnings	21.6	37.0	18.2
Other	10.5	(10.8)	(6.1)
Deductions	(29.6)	(19.7)	(13.2)
Valuation Allowances and Reserves, Balance End of Year	85.8	83.3	76.8
Valuation allowances for deferred tax assets
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowances and Reserves, Balance Beginning of Year	148.6	215.1	244.0
Charges to Earnings	0.2	(50.8)	(20.6)
Other	(12.4)	(15.7)	(8.3)
Deductions	0.0	0.0	0.0
Valuation Allowances and Reserves, Balance End of Year	$ 136.4	$ 148.6	$ 215.1