STATEMENT OF CHANGES IN EQUITY AND ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Changes in Each Component of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 1,456.2	$ 1,266.4	$ 1,425.1	$ 1,341.9
Other comprehensive income (loss)	14.9	29.4	2.4	(43.1)
Reclassifications, pretax	1.1	1.7	1.9	3.0
Income tax effect	(0.5)	(1.0)	(1.2)	(0.4)
Attributable to noncontrolling interest				(0.1)
Ending balance	1,536.0	1,242.4	1,536.0	1,242.4
Net trade sales	1,269.6	845.1	2,420.5	1,890.6
Cost of goods sold	1,000.3	698.5	1,903.7	1,523.3
Interest expense	19.5	21.4	38.8	42.3
Net earnings (loss)	112.3	(6.1)	199.8	38.0
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(7.9)	(86.9)	6.4	(21.5)
Other comprehensive income (loss)	13.5	25.8	(0.8)	(39.7)
Reclassifications, pretax	0.0	0.0	0.0	0.0
Income tax effect	0.0	0.0	0.0	0.0
Attributable to noncontrolling interest				(0.1)
Ending balance	5.6	(61.1)	5.6	(61.1)
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	2.5	(10.4)	1.4	(4.1)
Other comprehensive income (loss)	1.5	4.0	3.5	(3.6)
Reclassifications, pretax	(0.2)	0.6	(0.7)	0.9
Income tax effect	(0.2)	(0.9)	(0.6)	0.1
Attributable to noncontrolling interest				0.0
Ending balance	3.6	(6.7)	3.6	(6.7)
Defined Benefit Pension Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(59.4)	(50.0)	(60.2)	(51.2)
Other comprehensive income (loss)	(0.1)	(0.4)	(0.3)	0.2
Reclassifications, pretax	1.3	1.1	2.6	2.1
Income tax effect	(0.3)	(0.1)	(0.6)	(0.5)
Attributable to noncontrolling interest				0.0
Ending balance	(58.5)	(49.4)	(58.5)	(49.4)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(64.8)	(147.3)	(52.4)	(76.8)
Ending balance	(49.3)	(117.2)	(49.3)	(117.2)
Reclassification out of AOCI | Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Net trade sales	0.0	0.0	0.0	0.0
Cost of goods sold	0.0	0.0	0.0	0.0
Interest expense	0.0	0.0	0.0	0.0
Other income (expense), net	0.0	0.0	0.0	0.0
Net earnings (loss)	0.0	0.0	0.0	0.0
Reclassification out of AOCI | Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Net trade sales	(1.6)	(0.3)	(3.4)	(0.8)
Cost of goods sold	0.2	(0.2)	0.4	(0.5)
Interest expense	1.2	1.1	2.3	2.2
Other income (expense), net	0.0	0.0	0.0	0.0
Net earnings (loss)	(0.2)	0.6	(0.7)	0.9
Reclassification out of AOCI | Defined Benefit Pension Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Net trade sales	0.0	0.0	0.0	0.0
Cost of goods sold	0.0	0.0	0.0	0.0
Interest expense	0.0	0.0	0.0	0.0
Other income (expense), net	1.3	1.1	2.6	2.1
Net earnings (loss)	1.3	1.1	2.6	2.1
Reclassification out of AOCI | Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Net trade sales	(1.6)	(0.3)	(3.4)	(0.8)
Cost of goods sold	0.2	(0.2)	0.4	(0.5)
Interest expense	1.2	1.1	2.3	2.2
Other income (expense), net	1.3	1.1	2.6	2.1
Net earnings (loss)	$ 1.1	$ 1.7	$ 1.9	$ 3.0