Earnings per Share (table)

12 Months Ended

Dec. 31, 2011

Earnings per Share disclosure

Earnings per share reconciliation [Table Text Block]

(for the year ended December 31, in millions, except per share amounts)	2011			2010			2009
Basic
Net income, as reported	$	1,426		$	3,216		$	3,622
Preferred stock dividends		(1	)		(3	)		(3	)
Participating share-based awards—allocated income		(11	)		(25	)		(26	)
Net income available to common shareholders—basic	$	1,414		$	3,188		$	3,593
Diluted
Net income available to common shareholders	$	1,414		$	3,188		$	3,593
Effect of dilutive securities:
Convertible preferred stock		1			3			3
Participating share-based awards—re-allocated income		—			2			2
Zero coupon convertible notes		—			—			1
Net income available to common shareholders—diluted	$	1,415		$	3,193		$	3,599
Common Shares
Basic
Weighted average shares outstanding		415.8			476.5			563.2
Diluted
Weighted average shares outstanding		415.8			476.5			563.2
Weighted average effects of dilutive securities:
Convertible preferred stock		0.7			1.8			2.0
Stock options and performance shares		4.0			4.2			3.0
Zero coupon convertible notes		—			—			0.4
Total		420.5			482.5			568.6
Net income Per Common Share
Basic	$	3.40		$	6.69		$	6.38
Diluted	$	3.36		$	6.62		$	6.33