Equity (Schedule of Share Activity) (Details)	3 Months Ended
	Mar. 31, 2014
Rollforward of Share Activity
Common shares outstanding, beginning balance	77,258,000
Shares issued for stock option exercises	200,900
Shares issued for restricted stock awards	141,138
Common shares outstanding, ending balance	77,527,000
Treasury shares, beginning balance	9,467,286
Treasury shares, ending balance	9,467,286
Other Share Activity [Member]
Rollforward of Share Activity
Other shares issued, net of shares withheld for taxes	(73,000)