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

12 Months Ended

Dec. 31, 2018

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,
	2018							2017							2016
	Net							Net							Net
	Income			Shares		EPS		Income			Shares		EPS		Income			Shares		EPS
Basic EPS:
Net income	$	5,580						$	3,682						$	3,595
Income allocated to RSUs		(43	)						(34	)						(45	)
Income allocated to common stock	$	5,537			970	$	5.71	$	3,648			991	$	3.68	$	3,550			1,003	$	3.54
Dilutive effect of stock compensation plans					20							21							18
Diluted EPS:
Net income	$	5,580						$	3,682						$	3,595
Income allocated to RSUs		(42	)						(33	)						(44	)
Income allocated to common stock	$	5,538			990	$	5.59	$	3,649			1,012	$	3.61	$	3,551			1,021	$	3.48