CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities
Net income	$ 594	$ 166
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	(75)	(29)
Provision for credit losses	(120)	353
Net realized gains on securities available-for-sale	(29)	(81)
Net change in other assets and liabilities	504	1,010
Net change in loans held for sale:
Originations and purchases of loans held for sale	(1,664)	(1,733)
Sales and collections of loans held for sale	2,025	2,051
Net change in trading assets and liabilities	(17,494)	(2,419)
Lower of amortized cost or fair value adjustments on loans held for sale	(17)	82
Gain on instruments designated at fair value and related derivatives	(40)	(90)
Net cash provided by (used in) operating activities	(16,316)	(690)
Cash flows from investing activities
Net change in interest bearing deposits with banks	(2,865)	(9,661)
Net change in federal funds sold and securities purchased under agreements to resell	12,893	(10,866)
Securities available-for-sale:
Purchases of securities available-for-sale	(7,973)	(18,364)
Proceeds from sales of securities available-for-sale	12,620	13,697
Proceeds from maturities of securities available-for-sale	1,168	1,315
Securities held-to-maturity:
Purchases of securities held-to-maturity	(3,455)	(1,311)
Proceeds from maturities of securities held-to-maturity	1,872	1,871
Change in loans:
Collections, net of originations	5,125	3,697
Loans sold to third parties	2,088	1,458
Net cash used for acquisitions of properties and equipment	(14)	(17)
Other, net	463	(60)
Net cash provided by (used in) investing activities	21,922	(18,241)
Cash flows from financing activities
Net change in deposits	(7,461)	12,285
Debt:
Net change in short-term borrowings	2,875	1,069
Issuance of long-term debt	3,886	7,675
Repayment of long-term debt	(5,098)	(2,122)
Preferred stock issuance	0	1,265
Preferred stock redemption	0	(1,265)
Other increases (decreases) in capital surplus	(19)	(12)
Dividends paid	(38)	(29)
Net cash provided by (used in) financing activities	(5,855)	18,866
Net change in cash and due from banks	(249)	(65)
Cash and due from banks at beginning of period	1,235	968
Cash and due from banks at end of period	$ 986	$ 903