Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Abstract]

Reconciliation of weighted average shares for the basic and diluted shares computations

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Weighted average shares outstanding for basic net earnings per share		175.2		191.5		176.3		192.1
Effect of dilutive stock options and other equity awards		1.0		1.2		1.0		1.2
Weighted average shares outstanding for diluted net earnings per share		176.2		192.7		177.3		193.3