Consolidated Statement of Cash Flows $ in Millions	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)
Operating Activities
Net income	$ 4,037	$ 3,995
Adjustments to reconcile net income to net cash provided (used) by operating activities
Provision for credit losses	552	260
Depreciation and amortization	904	839
Deferred income taxes	83	(116)
Changes in fair value of mortgage servicing rights	715	(57)
Undistributed earnings of BlackRock	(356)	(421)
Net change in
Trading securities and other short-term investments	741	293
Loans held for sale	(882)	910
Other assets	(2,086)	(2,194)
Accrued expenses and other liabilities	831	2,195
Other	(291)	(1)
Net cash provided (used) by operating activities	4,248	5,703
Sales
Securities available for sale	5,201	5,422
Loans	1,237	1,180
Repayments/maturities
Securities available for sale	7,962	6,941
Securities held to maturity	2,193	1,917
Purchases
Securities available for sale	(17,179)	(17,635)
Securities held to maturity	(1,739)	(3,072)
Loans	(898)	(430)
Net change in
Federal funds sold and resale agreements	3,192	313
Interest-earning deposits with banks	(8,143)	8,795
Loans	(11,978)	(4,120)
Other	(573)	(965)
Net cash provided (used) by investing activities	(20,725)	(1,654)
Net change in
Noninterest-bearing deposits	180	(5,114)
Interest-bearing deposits	17,627	4,959
Federal funds purchased and repurchase agreements	1,934	1,037
Federal Home Loan Bank borrowings	1,400
Commercial paper		(100)
Other borrowed funds	(77)	(109)
Sales/issuances
Federal Home Loan Bank borrowings	12,000	6,500
Bank notes and senior debt	6,930	3,238
Subordinated debt		1,243
Other borrowed funds	929	400
Common and treasury stock	73	61
Repayments/maturities
Federal Home Loan Bank borrowings	(13,000)	(7,501)
Bank notes and senior debt	(5,600)	(4,175)
Subordinated debt	(700)	(575)
Other borrowed funds	(963)	(429)
Acquisition of treasury stock	(2,626)	(2,145)
Preferred stock cash dividends paid	(181)	(181)
Common stock cash dividends paid	(1,386)	(1,159)
Net cash provided (used) by financing activities	16,540	(4,050)
Net Increase (Decrease) In Cash And Due From Banks	63	(1)
Cash and due from banks at beginning of period	5,608	5,249
Cash and due from banks at end of period	5,671	5,248
Supplemental Disclosures
Interest paid	2,915	1,881
Income taxes paid	321	324
Income taxes refunded	7	463
Leased assets obtained in exchange for new operating lease liabilities	238
Right-of-use assets recognized at adoption of ASU 2016-02	2,004
Non-cash Investing and Financing Items
Transfer from loans to loans held for sale, net	771	359
Transfer from loans to foreclosed assets	131	145
Transfer from trading securities to investment securities	$ 228