CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities
Net income (loss)		$ 669	$ (1,088)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization		206	204
Goodwill impairment		0	784
Provision for credit losses		(537)	840
Net realized gains on securities available-for-sale		(51)	(111)
Net change in other assets and liabilities		1,475	(1,719)
Net change in loans held for sale:
Originations and purchases of loans held for sale		(2,049)	(2,401)
Sales and collections of loans held for sale		2,204	2,467
Net change in trading assets and liabilities		2,572	(5,020)
Lower of amortized cost or fair value adjustments on loans held for sale		5	25
Gain on instruments designated at fair value and related derivatives		(33)	(15)
Net cash provided by (used in) operating activities		4,461	(6,034)
Cash flows from investing activities
Net change in federal funds sold and securities purchased under agreements to resell		28,266	(7,741)
Securities available-for-sale:
Purchases of securities available-for-sale		(14,444)	(20,749)
Proceeds from sales of securities available-for-sale		7,422	10,258
Proceeds from paydowns and maturities of securities available-for-sale		9,864	7,006
Securities held-to-maturity:
Purchases of securities held-to-maturity		0	(515)
Proceeds from sales of securities held-to-maturity		0	340
Proceeds from paydowns and maturities of securities held-to-maturity		3,094	3,193
Change in loans:
Collections, net of originations		414	1,216
Loans sold to third parties		1,282	656
Net cash used for acquisitions of properties and equipment		(2)	(5)
Other, net		108	(198)
Net cash provided by (used in) investing activities		36,004	(6,539)
Cash flows from financing activities
Net change in deposits		7,250	25,575
Debt:
Net change in short-term borrowings		1,425	1,856
Issuance of long-term debt		6,861	7,250
Repayment of long-term debt		(8,402)	(8,387)
Other increases (decreases) in capital surplus		(3)	14
Dividends paid		(38)	(39)
Net cash provided by financing activities		7,093	26,269
Net change in cash and due from banks and interest bearing deposits with banks		47,558	13,696
Cash and due from banks and interest bearing deposits with banks at beginning of period		15,655	3,782
Cash and due from banks and interest bearing deposits with banks at end of period	[1]	$ 63,213	$ 17,478

[1] Includes $55 million of cash which is reported in other branch related assets held for sale on the consolidated balance sheet at September 30, 2021.