CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities
Net income (loss)		$ 320	$ (179)	$ 129
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization		(80)	(112)	(45)
Provision for credit losses		(73)	(165)	372
Deferred income tax provision		151	303	(140)
Net realized gains on securities available-for-sale		(24)	(52)	(70)
Net change in other assets and liabilities		(1,830)	(462)	1,723
Net change in loans held for sale:
Originations and purchases of loans held for sale		(2,399)	(2,360)	(2,398)
Sales and collections of loans held for sale		2,850	2,522	2,581
Net change in trading assets and liabilities		(7,076)	671	(2,312)
Lower of amortized cost or fair value adjustments on loans held for sale		(5)	(18)	83
Loss (gain) on instruments designated at fair value and related derivatives		(19)	(43)	71
Net cash provided by (used in) operating activities		(8,185)	105	(6)
Cash flows from investing activities
Net change in federal funds sold and securities purchased under agreements to resell		22,450	(2,596)	(10,176)
Securities available-for-sale:
Purchases of securities available-for-sale		(10,540)	(9,229)	(22,815)
Proceeds from sales of securities available-for-sale		5,169	14,196	19,462
Proceeds from maturities of securities available-for-sale		4,224	1,800	1,930
Securities held-to-maturity:
Purchases of securities held-to-maturity		(3,007)	(3,722)	(1,538)
Proceeds from maturities of securities held-to-maturity		2,276	2,512	2,704
Change in loans:
Collections, net of originations		2,527	(19)	7,391
Loans sold to third parties		758	2,183	1,621
Net cash used for acquisitions of properties and equipment		(17)	(36)	(32)
Net outflows related to the sale of a portion of our Private Banking business		(515)	(320)	0
Other, net		50	549	114
Net cash provided by (used in) investing activities		23,375	5,318	(1,339)
Cash flows from financing activities
Net change in deposits		(6,928)	(10,290)	10,525
Debt:
Net change in short-term borrowings		(469)	(449)	110
Issuance of long-term debt		11,923	5,158	8,694
Repayment of long-term debt		(14,704)	(8,948)	(4,869)
Preferred stock issuance		0	0	1,265
Preferred stock redemption		0	0	(1,265)
Other increases (decreases) in capital surplus		6	(18)	(21)
Dividends paid		(76)	(77)	(67)
Net cash provided by (used in) financing activities		(10,248)	(14,624)	14,372
Net change in cash and due from banks and interest bearing deposits with banks(1)		4,942	(9,201)	13,027
Cash and due from banks and interest bearing deposits with banks at beginning of period	[1]	12,272	21,473	8,446
Cash and and due from banks and interest bearing deposits with banks at end of period	[1]	$ 17,214	$ 12,272	$ 21,473

[1] As a result of adopting new accounting guidance in 2018, we changed our presentation of cash and cash equivalents to include cash and due from banks as well as interest bearing deposits with banks, which includes restricted cash. See Note 2, "Summary of Significant Accounting Policies and New Accounting Pronouncements," for further discussion.