Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings per Share [Abstract]

Weighted-Average Shares Outstanding for Computation of Basic and Diluted Income per Common Share

(Weighted-average shares outstanding)	2014	2013	2012
Basic method	178,852,942	187,921,062	193,902,335
Dilutive stock options	1,218,042	1,350,336	766,402
Diluted method	180,070,984	189,271,398	194,668,737

Anti Dilutive Securities Not Included in Computation of Diluted EPS

	2014	2013	2012
Antidilutive stock options excluded from diluted shares	1,893,364	1,026,900	3,329,689
Weighted average price of these options	$ 55.21	$ 54.54	$ 64.72