Comprehensive Income (Reclassification out of AOCL) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold; Selling, general and administrative expenses	$ (588.7)	$ (611.6)
Income tax benefit (expense)	(13.6)	(6.1)
Foreign currency adjustments upon sale of business	(5.4)
Net of tax	(2.1)	0.0
(Losses)/Gains on Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency adjustments upon sale of business	(1.8)
Defined Benefit Plan Items [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency adjustments upon sale of business	(1.5)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency adjustments upon sale of business	(2.1)	0.0
Reclassification out of Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax	(5.4)	1.8
Reclassification out of Accumulated Other Comprehensive Loss [Member] | (Losses)/Gains on Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax benefit (expense)	0.6	(1.1)
Net of tax	(1.8)	3.5
Reclassification out of Accumulated Other Comprehensive Loss [Member] | (Losses)/Gains on Cash Flow Hedges [Member] | Commodity Futures Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold; Selling, general and administrative expenses	(2.4)	4.6
Reclassification out of Accumulated Other Comprehensive Loss [Member] | Defined Benefit Plan Items [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold; Selling, general and administrative expenses	(2.0)	(2.3)
Income tax benefit (expense)	0.5	0.6
Net of tax	$ (1.5)	$ (1.7)