Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2011

Earnings Per Share [Abstract]

Basic and diluted earnings per share

	Three Months				Nine Months
For the Periods Ended September 30	2011		2010		2011		2010
Income from continuing operations	$	71	$	12	$	365	$	382
Weighted average common shares outstanding		184.4		182.5		184.0		182.2
Add: Weighted average restricted stock awards outstanding(a)		1.1		1.6		1.2		1.6
Basic weighted average common shares outstanding		185.5		184.1		185.2		183.8
Add: Dilutive impact of stock options		1.0		1.2		1.4		1.4
Diluted weighted average common shares outstanding		186.5		185.3		186.6		185.2
Basic earnings per share from continuing operations	$	0.38	$	0.07	$	1.97	$	2.08
Diluted earnings per share from continuing operations	$	0.38	$	0.07	$	1.96	$	2.06

(a) Restricted stock awards containing rights to non-forfeitable dividends which participate in undistributed earnings with common shareholders are considered participating securities for purposes of computing earnings per share.

Number of shares underlying stock options excluded from the computation of diluted earnings

	Three Months				Nine Months
For the Periods Ended September 30	2011		2010		2011		2010
Anti-dilutive stock options		2.6		2.2		1.8		2.1
Average exercise price	$	55.26	$	54.30	$	56.55	$	54.42