Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2011

Earnings per Share (Tables) [Abstract]

Reconciliation of basic earnings per share to diluted earnings per share for income from continuing operations

	Three Months Ended June 30,
	2011							2010
					Per							Per
	Earnings		Shares		Share			Earnings		Shares		Share
Basic earnings from continuing operations	$	150		189	$	0.79		$	79		182	$	0.44
Effect of dilutive securities:
Employee stock options and restricted stock awards		—		6		(0.02	)		—		7		(0.02	)
Diluted earnings from continuing operations	$	150		195	$	0.77		$	79		189	$	0.42

	Six Months Ended June 30,
	2011							2010
					Per							Per
	Earnings		Shares		Share			Earnings		Shares		Share
Basic earnings from continuing operations	$	179		188	$	0.95		$	109		182	$	0.60
Effect of dilutive securities:
Employee stock options and restricted stock awards		—		7		(0.03	)		—		6		(0.02	)
Diluted earnings from continuing operations	$	179		195	$	0.92		$	109		188	$	0.58