OTHER - Other (Income) Expense - Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Income and Expenses [Abstract]
Investment and royalty income	$ (4.9)	$ (0.8)	$ (2.6)	$ (5.6)
Loss on extinguishment of debt (see Note 6)			21.3
Net expense from banking activities	2.4	2.7	5.2	5.4
Foreign currency transaction related losses (gains)	6.5	(1.8)	10.4	(3.9)
Domestic pension plan settlement expense				32.4
Miscellaneous pension expense	1.1	2.0	2.3	4.1
Other income	(0.3)	(6.5)	(11.1)	(15.5)
Other expense	1.6	4.9	3.3	6.9
Other expense - net	$ 6.4	$ 0.5	$ 28.8	$ 23.8