Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue
Investment banking fees	$ 1,832	$ 1,868	$ 5,736	$ 5,594
Principal transactions	2,964	2,721	10,698	9,440
Lending- and deposit-related fees	1,542	1,497	4,514	4,427
Asset management, administration and commissions	4,310	4,072	12,923	11,996
Investment securities losses	(46)	(1)	(371)	(38)
Mortgage fees and related income	262	429	1,051	1,239
Card income	1,328	1,242	3,623	3,323
Other income	1,160	952	4,041	3,197
Noninterest revenue	13,352	12,780	42,215	39,178
Interest income	19,840	16,687	56,404	47,379
Interest expense	5,932	3,889	15,699	10,309
Net interest income	13,908	12,798	40,705	37,070
Total net revenue	27,260	25,578	82,920	76,248
Provision for credit losses	948	1,452	3,323	3,982
Noninterest expense
Compensation expense	8,108	7,697	25,308	23,710
Occupancy expense	1,014	930	2,883	2,803
Technology, communications and equipment expense	2,219	1,972	6,441	5,677
Professional and outside services	2,086	1,955	6,333	5,646
Marketing	798	710	2,396	2,179
Other expense	1,398	1,306	4,313	4,605
Total noninterest expense	15,623	14,570	47,674	44,620
Income before income tax expense	10,689	9,556	31,923	27,646
Income tax expense	2,309	2,824	6,515	7,437
Net income	8,380	6,732	25,408	20,209
Net income applicable to common stockholders	$ 7,948	$ 6,262	$ 24,067	$ 18,786
Net income per common share data
Basic earnings per share (in dollars per share)	$ 2.35	$ 1.77	$ 7.04	$ 5.26
Diluted earnings per share (in dollars per share)	$ 2.34	$ 1.76	$ 7.00	$ 5.22
Weighted-average basic shares (in shares)	3,376.1	3,534.7	3,416.5	3,570.9
Weighted-average diluted shares (in shares)	3,394.3	3,559.6	3,436.2	3,597.0
Cash dividends declared per common share (in dollars per share)	$ 0.80	$ 0.56	$ 1.92	$ 1.56