Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2013

Analysis of Changes in Number of Shares of Common Stock Outstanding

An analysis of changes in the number of shares of common stock outstanding follows:

	2013			2012			2011
Balance at January 1		238,914,988			241,008,509			242,268,903
Incentive Plan and Awards		863,958			449,463			189,793
Stock Options Exercised		3,088,490			973,270			149,385
Treasury Stock Purchased		(5,545,401	)		(3,516,254	)		(1,599,572	)
Balance at December 31		237,322,035			238,914,988			241,008,509