Description of business and significant accounting policies and practices (Tables)

9 Months Ended

Sep. 30, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Computation and reconciliation of earnings per common share

Computation and reconciliation of earnings per common share are as follows (shares in millions):

	For Three Months Ended September 30, 2012						For Three Months Ended September 30, 2011
	Net Income			Shares	EPS		Net Income			Shares	EPS
Basic EPS:
Net income	$	784					$	601
Less income allocated to RSUs	(15		)				(10		)
Income allocated to common stock for basic EPS calculation	$	769		1,130	$	.68	$	591		1,144	$	.52
Adjustment for dilutive shares:
Stock-based compensation plans				11						13
Diluted EPS:
Net income	$	784					$	601
Less income allocated to RSUs	(14		)				(10		)
Income allocated to common stock for diluted EPS calculation	$	770		1,141	$	.67	$	591		1,157	$	.51

	For Nine Months Ended September 30, 2012						For Nine Months Ended September 30, 2011
	Net Income			Shares	EPS		Net Income			Shares	EPS
Basic EPS:
Net income	$	1,495					$	1,938
Less income allocated to RSUs	(27		)				(30		)
Income allocated to common stock for basic EPS calculation	$	1,468		1,138	$	1.29	$	1,908		1,156	$	1.65
Adjustment for dilutive shares:
Stock-based compensation plans				15						21
Diluted EPS:
Net income	$	1,495					$	1,938
Less income allocated to RSUs	(27		)				(29		)
Income allocated to common stock for diluted EPS calculation	$	1,468		1,153	$	1.27	$	1,909		1,177	$	1.62