Reportable Business Segments (Details 6) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Summary of financial information relating to geographic area based operations
Total net sales to external customers	$ 749.5	$ 868.0	$ 913.1	$ 668.4	$ 684.9	$ 809.7	$ 840.4	$ 614.4	$ 3,199.1	[1]	$ 2,949.4	[1]	$ 2,840.9	[1]
Total property, plant and equipment, net	335.5				298.2				335.5		298.2		300.7
United States [Member]
Summary of financial information relating to geographic area based operations
Total net sales to external customers									2,382.0		2,147.2		2,018.1
Total property, plant and equipment, net	230.3				227.9				230.3		227.9		233.4
Mexico [Member]
Summary of financial information relating to geographic area based operations
Total property, plant and equipment, net	39.7				28.0				39.7		28.0		28.0
Canada [Member]
Summary of financial information relating to geographic area based operations
Total net sales to external customers									232.3		226.7		219.2
Total property, plant and equipment, net	0.6				0.6				0.6		0.6		0.6
International [Member]
Summary of financial information relating to geographic area based operations
Total net sales to external customers									584.8		575.5		603.6
Total property, plant and equipment, net	$ 64.9				$ 41.7				$ 64.9		$ 41.7		$ 38.7

[1] On a consolidated basis, no revenue from transactions with a single customer were 10% or greater of our consolidated net sales for any of the periods presented.