CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities
Net income	$ 546	$ 73
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for credit losses	(160)	275
Deferred income tax expense (benefit)	23	(39)
Depreciation and amortization of premises and equipment	31	21
Amortization of intangible assets	28	11
Net other amortization and accretion	(32)	8
Net (increase) decrease in derivatives	253	(369)
Stock-based compensation expense	21	10
Securities (gains) losses, net	(11)	1
Net (gains) losses on sale/disposal of fixed assets	33	2
(Gain) loss on BOLI	(2)	(4)
Loans held for sale:
Purchases and originations	(2,804)	(1,097)
Gross proceeds from settlements and sales	2,050	323
(Gain) loss due to fair value adjustments and other	(69)	7
Other operating activities, net	1,108	275
Total adjustments	469	(576)
Net cash provided by (used in) operating activities	1,015	(503)
Investing Activities
Proceeds from sales of securities available for sale	33	9
Proceeds from maturities of securities available for sale	1,175	572
Purchases of securities available for sale	(1,647)	(1,498)
Proceeds from sales of premises and equipment	4	2
Purchases of premises and equipment	(26)	(21)
Proceeds from BOLI	6	8
Net (increase) decrease in loans and leases	1,601	(1,649)
Net increase in interest-bearing deposits with banks	(5,100)	(2,653)
Other investing activities, net	8	4
Net cash used in investing activities	(3,946)	(5,226)
Common stock:
Stock options exercised	25	4
Cash dividends paid	(167)	(92)
Repurchase of shares	(126)	(4)
Cancellation of common shares	0	(2)
Preferred stock issuance	145	145
Cash dividends paid - preferred stock - noncontrolling interest	(6)	(6)
Cash dividends paid - preferred stock	(16)	(3)
Net increase in deposits	3,304	5,330
Net increase (decrease) in short-term borrowings	48	(1,126)
Proceeds from issuance of term borrowings	0	1,242
Increases (decreases) in restricted and secured term borrowings	1	(6)
Net cash provided by financing activities	3,208	5,482
Net increase (decrease) in cash and cash equivalents	277	(247)
Cash and cash equivalents at beginning of period	1,648	1,267
Cash and cash equivalents at end of period	1,925	1,020
Supplemental Disclosures
Total interest paid	98	125
Total taxes paid	173	6
Total taxes refunded	4	1
Transfer from loans to OREO	2	2
Transfer from loans HFS to trading securities	871	604
Transfer from loans to loans HFS	$ (31)	$ 0