Comprehensive Income (Reclassification out of AOCL) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold; Selling, general and administrative expenses	$ (728.3)	$ (738.6)	$ (2,153.8)	$ (2,082.4)
Income tax expense	(25.8)	(43.0)	(77.3)	(103.8)
Foreign currency adjustments upon sale of business			(27.6)
Income tax benefit	0.0	0.0	0.0	0.0
Net of tax	(5.0)	0.0	(27.9)	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			5.6
Defined Benefit Plan Items [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency adjustments upon sale of business			(5.3)
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	5.0	0.0	(27.9)	0.0
Reclassification out of Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax	(6.6)	1.1	(27.6)	2.5
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 expense	(0.1)	(1.3)	(1.7)	(3.4)
Net of tax	0.2	2.2	5.6	6.0
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	0.3	3.5	7.3	9.4
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	(2.4)	(1.8)	(7.0)	(5.5)
Income tax expense	0.6	0.7	1.7	2.0
Net of tax	$ (1.8)	$ (1.1)	$ (5.3)	$ (3.5)