Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Revenue
Investment banking fees	$ 6,542		$ 6,354		$ 5,808
Principal transactions	10,531		10,141		5,536
Lending- and deposit-related fees	5,801		5,945		6,196
Asset management, administration and commissions	15,931		15,106		13,868
Securities gains	77	[1]	667	[1]	2,110	[1]
Mortgage fees and related income	3,563		5,205		8,687
Card income	6,020		6,022		5,658
Other income	2,106		3,847		4,258
Noninterest revenue	50,571		53,287		52,121
Interest income	51,531		52,669		55,953
Interest expense	7,897		9,350		11,043
Net interest income	43,634		43,319		44,910
Total net revenue	94,205		96,606		97,031
Provision for credit losses	3,139		225		3,385
Noninterest expense
Compensation expense	30,160		30,810		30,585
Occupancy expense	3,909		3,693		3,925
Technology, communications and equipment expense	5,804		5,425		5,224
Professional and outside services	7,705		7,641		7,429
Marketing	2,550		2,500		2,577
Other expense	11,146		20,398		14,989
Total noninterest expense	61,274		70,467		64,729
Income before income tax expense	29,792		25,914		28,917
Income tax expense	8,030		7,991		7,633
Net income	21,762		17,923		21,284
Net income applicable to common stockholders	20,093		16,593		19,877
Net income per common share data
Basic earnings per share (in dollars per share)	$ 5.34		$ 4.39		$ 5.22
Diluted earnings per share (in dollars per share)	$ 5.29		$ 4.35		$ 5.20
Weighted-average basic shares (in shares)	3,763.5		3,782.4		3,809.4
Weighted-average diluted shares (in shares)	3,797.5		3,814.9		3,822.2
Cash dividends declared per common share (in dollars per share)	$ 1.58		$ 1.44		$ 1.2
Other-than-temporary impairment losses included in securities gains
Total other-than-temporary impairment losses	(2)		(1)		(113)
Losses recorded in/(reclassified from) other comprehensive income	0		0		85
Total credit losses recognized in income	(4)		(21)		(43)
Credit related
Other-than-temporary impairment losses included in securities gains
Total credit losses recognized in income	(2)		(1)		(28)
Intent to sell
Other-than-temporary impairment losses included in securities gains
Total credit losses recognized in income	$ (2)		$ (20)		$ (15)

[1] The following other-than-temporary impairment losses are included in securities gains for the periods presented.Year ended December 31, (in millions) 2014 2013 2012Debt securities the Firm does not intend to sell that have credit losses Total other-than-temporary impairment losses $(2) $(1) $(113)Losses recorded in/(reclassified from) accumulated other comprehensive income — — 85Total credit losses recognized in income (2) (1) (28)Securities the Firm intends to sell (2) (20) (15)Total other-than-temporary impairment losses recognized in income $(4) $(21) $(43)