Basic and Diluted Earnings Per Share

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Basic and Diluted Earnings Per Share

Earnings Per Share

Basic earnings per share of common stock is computed using the weighted average number of shares of common stock outstanding during each period. The diluted earnings per share of common stock include the effect of outstanding stock options, shares of restricted stock, or shares of our common stock held in a rabbi trust (when dilutive). The following table summarizes the calculation of basic and diluted earnings per share:

	Three Months Ended March 31,
(millions, except per share amounts)	2014		2013
Income from Continuing Operations	$	200	$	232
Weighted Average Number of Shares Outstanding, Basic	360		358
Incremental Shares from Assumed Conversion of Dilutive Stock Options, Restricted Stock, and Shares of Common Stock in Rabbi Trust	5		4
Weighted Average Number of Shares Outstanding, Diluted	365		362
Earnings from Continuing Operations Per Share, Basic	$	0.56	$	0.65
Earnings from Continuing Operations Per Share, Diluted	0.55		0.64
Number of Antidilutive Stock Options, Shares of Restricted Stock, and Shares of Common Stock in Rabbi Trust Excluded from Calculation Above	6		5