Basis of Presentation and Significant Accounting Policies and Practices (Tables)

12 Months Ended

Dec. 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 Years Ended December 31,
	2015							2014							2013
	Net							Net							Net
	Income			Shares		EPS		Income			Shares		EPS		Income			Shares		EPS
Basic EPS:
Net income	$	2,986						$	2,821						$	2,162
Income allocated to RSUs		(43	)						(44	)						(37	)
Income allocated to common stock for basic EPS calculation	$	2,943			1,030	$	2.86	$	2,777			1,065	$	2.61	$	2,125			1,098	$	1.94
Adjustment for dilutive shares:
Stock-based compensation plans					13							15							15
Diluted EPS:
Net income	$	2,986						$	2,821						$	2,162
Income allocated to RSUs		(42	)						(43	)						(36	)
Income allocated to common stock for diluted EPS calculation	$	2,944			1,043	$	2.82	$	2,778			1,080	$	2.57	$	2,126			1,113	$	1.91