Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income before noncontrolling interests	$ 505	$ 5,967
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	4,005	845
Changes in fair value of MSRs, MLHFS and LHFS carried at fair value	3,486	1,144
Depreciation, amortization and accretion	1,868	1,449
Other net (gains) losses	7,638	(1,418)
Stock-based compensation	582	902
Originations and purchases of mortgage loans held for sale	(37,216)	(25,098)
Proceeds from sales of and paydowns on mortgage loans held for sale	31,922	17,148
Net change in:
Debt and equity securities, held for trading	20,413	6,969
Loans held for sale	(731)	728
Deferred income taxes	(1,448)	312
Derivative assets and liabilities	(4,293)	(1,586)
Other assets	(10,391)	1,130
Other accrued expenses and liabilities	933	(541)
Net cash provided by operating activities	17,273	7,951
Net change in:
Federal funds sold and securities purchased under resale agreements	15,675	(18,414)
Available-for-sale debt securities:
Proceeds from sales	11,843	1,680
Prepayments and maturities	14,135	6,001
Purchases	(18,658)	(4,937)
Held-to-maturity debt securities:
Paydowns and maturities	3,769	2,123
Purchases	(19,141)	0
Equity securities, not held for trading:
Proceeds from sales and capital returns	1,115	1,180
Purchases	(3,338)	(1,352)
Loans:
Loans originated by banking subsidiaries, net of principal collected	(53,400)	669
Proceeds from sales (including participations) of loans held for investment	1,959	3,410
Purchases (including participations) of loans	(342)	(331)
Principal collected on nonbank entities’ loans	3,837	899
Loans originated by nonbank entities	(2,348)	(1,318)
Proceeds from sales of foreclosed assets and short sales	500	707
Other, net	91	657
Net cash used by investing activities	(44,303)	(9,026)
Net change in:
Deposits	53,903	(22,161)
Short-term borrowings	(12,223)	810
Long-term debt:
Proceeds from issuance	18,895	17,338
Repayment	(17,563)	(11,898)
Preferred stock:
Proceeds from issuance	1,968	0
Redeemed	(2,470)	0
Cash dividends paid	(280)	(294)
Common stock:
Proceeds from issuance	209	181
Stock tendered for payment of withholding taxes	(306)	(264)
Repurchased	(3,407)	(4,820)
Cash dividends paid	(2,032)	(1,997)
Net change in noncontrolling interests	(29)	(83)
Other, net	(76)	(56)
Net cash provided (used) by financing activities	36,589	(23,244)
Net change in cash, cash equivalents, and restricted cash	9,559	(24,319)
Cash, cash equivalents, and restricted cash at beginning of period	141,250	173,287
Cash, cash equivalents, and restricted cash at end of period	150,809	148,968
Supplemental cash flow disclosures:
Cash paid for interest	3,479	4,401
Cash paid for income taxes	$ 207	$ 126