Basis of presentation and significant accounting policies and practices (Tables)

3 Months Ended

Mar. 31, 2015

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of earnings per share, basic and diluted

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

	For Three Months Ended March 31,
	2015							2014
	Net							Net
	Income			Shares		EPS		Income			Shares		EPS
Basic EPS:
Net income	$	656						$	487
Income allocated to RSUs		(9	)						(7	)
Income allocated to common stock
for basic EPS calculation	$	647			1,046	$	.62	$	480			1,081	$	.44
Adjustment for dilutive shares:
Stock-based compensation plans					15							15
Diluted EPS:
Net income	$	656						$	487
Income allocated to RSUs		(9	)						(7	)
Income allocated to common stock
for diluted EPS calculation	$	647			1,061	$	.61	$	480			1,096	$	.44