Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activities
Net income	$ 19,008	$ 16,814
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	2,576	2,299
Depreciation and amortization	3,667	3,573
Deferred tax expense/(benefit)	(530)	1,894
Investment securities gains	(129)	(48)
Stock-based compensation	1,539	1,681
Originations and purchases of loans held-for-sale	(36,188)	(48,334)
Proceeds from sales, securitizations and paydowns of loans held-for-sale	39,332	53,250
Net change in:
Trading assets	44,473	(30,542)
Securities borrowed	4,828	(7,416)
Accrued interest and accounts receivable	11,416	(7,793)
Other assets	(6,229)	9,842
Trading liabilities	(6,625)	2,624
Accounts payable and other liabilities	(13,420)	9,341
Other operating adjustments	(6,419)	662
Net cash provided by operating activities	57,299	7,847
Investing activities
Net change in deposits with banks	108,281	(98,261)
Net change in federal funds sold and securities purchased under resale agreements	(2,626)	32,272
Held-to-maturity securities:
Proceeds from paydowns and maturities	4,790	2,947
Purchases	(5,930)	(8,634)
Available-for-sale securities:
Proceeds from paydowns and maturities	58,281	67,261
Proceeds from sales	29,303	21,054
Purchases	(54,034)	(96,776)
Proceeds from sales and securitizations of loans held-for-investment	14,634	14,592
Other changes in loans, net	(75,891)	(30,070)
Net cash provided by/(used in) business acquisitions or dispositions	1,255	24
All other investing activities, net	1,659	(39)
Net cash provided by/(used in) investing activities	79,722	(95,630)
Financing activities
Net change in deposits	(96,466)	52,046
Net change in federal funds purchased and securities loaned or sold under repurchase agreements	(11,789)	17,564
Net change in commercial paper and other borrowed funds	(47,615)	4,367
Net change in beneficial interests issued by consolidated variable interest entities	(1,374)	(4,515)
Proceeds from long-term borrowings	70,243	54,263
Payments of long-term borrowings	(51,382)	(49,493)
Excess tax benefits related to stock-based compensation	310	387
Proceeds from issuance of preferred stock	5,893	8,848
Treasury stock purchased	(4,397)	(3,250)
Dividends paid	(5,678)	(5,078)
All other financing activities, net	(1,258)	(1,078)
Net cash (used in)/provided by financing activities	(143,513)	74,061
Effect of exchange rate changes on cash and due from banks	(81)	(677)
Net decrease in cash and due from banks	(6,573)	(14,399)
Cash and due from banks at the beginning of the period	27,831	39,771
Cash and due from banks at the end of the period	21,258	25,372
Cash interest paid	5,624	6,008
Cash income taxes paid, net	$ 6,871	$ 453