Comprehensive Income (Reclassification out of AOCL) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of goods sold; Selling, general and administrative expenses	$ (582.5)	$ (531.6)
Income tax benefit	(9.9)	(13.0)
Reclassification out of Accumulated Other Comprehensive Loss [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax	0.7	(4.3)
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	(1.0)	1.7
Net of tax	2.0	(3.1)
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	3.0	(4.8)
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	(1.9)	(1.8)
Income tax benefit	0.6	0.6
Net of tax	$ (1.3)	$ (1.2)