Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue
Investment banking fees	$ 7,550	$ 7,412	$ 6,572
Principal transactions	12,059	11,347	11,566
Lending- and deposit-related fees	6,052	5,933	5,774
Asset management, administration and commissions	17,118	16,287	15,364
Investment securities gains/(losses)	(395)	(66)	141
Mortgage fees and related income	1,254	1,616	2,491
Card income	4,989	4,433	4,779
Other income	5,343	3,646	3,799
Noninterest revenue	53,970	50,608	50,486
Interest income	77,442	64,372	55,901
Interest expense	22,383	14,275	9,818
Net interest income	55,059	50,097	46,083
Total net revenue	109,029	100,705	96,569
Provision for credit losses	4,871	5,290	5,361
Noninterest expense
Compensation expense	33,117	31,208	30,203
Occupancy expense	3,952	3,723	3,638
Technology, communications and equipment expense	8,802	7,715	6,853
Professional and outside services	8,502	7,890	7,526
Marketing	3,290	2,900	2,897
Other expense	5,731	6,079	5,555
Total noninterest expense	63,394	59,515	56,672
Income before income tax expense	40,764	35,900	34,536
Income tax expense	8,290	11,459	9,803
Net income	32,474	24,441	24,733
Net income applicable to common stockholders	$ 30,709	$ 22,567	$ 22,834
Net income per common share data
Basic earnings per share (in dollars per share)	$ 9.04	$ 6.35	$ 6.24
Diluted earnings per share (in dollars per share)	$ 9.00	$ 6.31	$ 6.19
Weighted-average basic shares (in shares)	3,396.4	3,551.6	3,658.8
Weighted-average diluted shares (in shares)	3,414.0	3,576.8	3,690.0