Earnings Per Share and Equity (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share and Equity Tables [Abstract]

Reconciliation of basic and diluted earnings per share

			Three Months Ended June 30,				Six Months Ended June 30,
			2013		2012		2013		2012
Net income attributable to common shareholders		$	490	$	286	$	486	$	486
Average common shares outstanding — basic			856		853		856		779
Assumed exercise of stock options, performance share awards
	and restricted stock		4		3		3		2
Average common shares outstanding — diluted			860		856		859		781