Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2012

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

The following table reconciles the weighted-average shares outstanding used for these computations.

	Three Months Ended September 30,				Nine Months Ended September 30,
(Weighted-average shares)	2012		2011		2012		2011
Basic method		194,290,277		193,517,785		194,126,104		193,342,825
Dilutive stock options and restricted stock units		767,675		893,331		748,468		1,206,021
Diluted method		195,057,952		194,411,116		194,874,572		194,548,846

Options to Purchase Outstanding Shares of Common Stock Excluded from Computation of Diluted Earnings Per Share

The following table reflects certain options to purchase shares of common stock that were outstanding during the 2012 and 2011 periods but were not included in the computation of diluted EPS above because the incremental shares from assumed conversion were antidilutive.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Antidilutive stock options excluded from diluted shares		3,538,507		2,034,087		3,276,850		1,764,565
Weighted average price of these options	$	63.83	$	69.28	$	65.01	$	69.53