Quarterly Financial Information (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

	Quarter Ended
(in millions, except per share amounts)	March 31		June 30		September 30		December 31		Total
2012
Net sales	$	1,304.8	$	1,312.7	$	1,287.8	$	1,233.9	$	5,139.2
Gross profit	231.0		233.3		247.1		236.1		947.5
Net income	44.0		42.3		47.4		40.1		173.8
Basic earnings per common share	0.42		0.41		0.46		0.38		1.67
Diluted earnings per common share	0.42		0.40		0.45		0.38		1.66
2011
Net sales	$	1,324.4	$	1,370.2	$	1,357.9	$	1,270.2	$	5,322.7
Gross profit	229.8		238.0		223.7		218.7		910.2
Net income	51.2		54.2		55.9		22.8		184.1
Basic earnings per common share	0.47		0.51		0.53		0.22		1.73
Diluted earnings per common share	0.47		0.51		0.53		0.22		1.73