CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities
Net income	$ 500	$ 133
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	(45)	(15)
Provision for credit losses	(98)	291
Net realized gains on securities available-for-sale	(24)	(65)
Net change in other assets and liabilities	(575)	(1,800)
Net change in loans held for sale:
Originations and purchases of loans held for sale	(1,109)	(974)
Sales and collections of loans held for sale	1,463	1,069
Net change in trading assets and liabilities	(4,041)	1,510
Lower of amortized cost or fair value adjustments on loans held for sale	(14)	71
Gain (loss) on instruments designated at fair value and related derivatives	(33)	(178)
Net cash provided by (used in) operating activities	(3,976)	42
Cash flows from investing activities
Net change in interest bearing deposits with banks	(9,908)	(6,321)
Net change in federal funds sold and securities purchased under agreements to resell	11,444	(14,814)
Securities available-for-sale:
Purchases of securities available-for-sale	(6,082)	(14,192)
Proceeds from sales of securities available-for-sale	10,334	12,671
Proceeds from maturities of securities available-for-sale	873	764
Securities held-to-maturity:
Purchases of securities held-to-maturity	(1,863)	(327)
Proceeds from maturities of securities held-to-maturity	1,218	1,115
Change in loans:
Collections, net of originations	4,829	2,167
Loans sold to third parties	1,666	1,448
Net cash used for acquisitions of properties and equipment	(11)	(11)
Other, net	451	(62)
Net cash provided by (used in) investing activities	12,951	(17,562)
Cash flows from financing activities
Net change in deposits	(12,097)	14,018
Debt:
Net change in short-term borrowings	3,784	2,382
Issuance of long-term debt	2,828	2,559
Repayment of long-term debt	(3,688)	(1,464)
Preferred stock issuance	0	1,265
Preferred stock redemption	0	(1,265)
Other increases (decreases) in capital surplus	(6)	0
Dividends paid	(39)	(28)
Net cash provided by (used in) financing activities	(9,218)	17,467
Net change in cash and due from banks	(243)	(53)
Cash and due from banks at beginning of period	1,235	968
Cash and due from banks at end of period	$ 992	$ 915