Comprehensive Income (Reclassification out of AOCL) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold; Selling, general and administrative expenses	$ (731.7)	$ (734.6)	$ (1,955.3)	$ (2,090.3)
Income tax benefit	(27.5)	(29.0)	(68.8)	(71.5)
Foreign currency adjustments on sale of business			(7.7)
Net of tax	0.0	0.0	0.0	(2.1)
(Losses)/Gains on Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency adjustments on sale of business			(4.1)
Defined Benefit Plan Items [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency adjustments on sale of business			(3.6)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency adjustments on sale of business	0.0	0.0	0.0	(2.1)
Reclassification out of Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax	(1.6)	(3.1)	(7.7)	(56.2)
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	0.1	0.5	1.4	1.6
Net of tax	(0.3)	(2.0)	(4.1)	(5.3)
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	(0.4)	(2.5)	(5.5)	(6.9)
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	(1.4)	(1.5)	(4.4)	(4.4)
Income tax benefit	0.4	0.4	1.1	16.2
Net of tax	$ (1.3)	$ (1.1)	$ (3.6)	$ (48.8)