Condensed Consolidated Statements of Comprehensive (Loss) Income (unaudited) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024
INTEREST INCOME:
Loans and leases		$ 860	$ 1,193
Securities and money market investments		304	320
Total interest income		1,164	1,513
INTEREST EXPENSE:
Interest-bearing checking and money market accounts		167	232
Savings accounts		111	47
Certificates of deposit		308	291
Borrowed funds		168	319
Total interest expense		754	889
Net interest income		410	624
Provision for credit losses		79	315
Net interest income after provision for credit loan losses		331	309
NON-INTEREST INCOME:
Fee income		22	34
Bank-owned life insurance		10	10
Net return on mortgage servicing rights		0	21
Net gain on loan sales and securitizations		13	20
Net loan administration income		4	16
Bargain purchase gain		0	(121)
Other		31	29
Total non-interest income		80	9
NON-INTEREST EXPENSE:
Compensation and benefits		244	333
FDIC insurance		50	50
Occupancy and equipment		55	52
General and administrative		147	186
Total operating expense		496	621
Intangible asset amortization		28	35
Merger-related and restructuring expenses		8	43
Total non-interest expense		532	699
(Loss) before income taxes		(121)	(381)
Income tax (benefit)		(21)	(54)
Net (loss)		(100)	(327)
Preferred stock dividends		8	8
Net (loss) attributable to common stockholders		$ (108)	$ (335)
Basic (loss) per common share (in usd per share)	[1]	$ (0.26)	$ (1.36)
Diluted (loss) per common share (in usd per share)	[1]	$ (0.26)	$ (1.36)
Net (loss)		$ (100)	$ (327)
Other comprehensive (loss) income, net of tax:
Debt securities available for sale		93	(70)
Pension and post-retirement obligations		1	1
Cash flow hedges		(7)	51
Total other comprehensive (loss) income, net of tax		87	(18)
Total comprehensive (loss), net of tax		$ (13)	$ (345)

[1] On June 27, 2024, the Company announced a 1 for 3 reverse stock split, effective July 11, 2024. This reverse stock split is reflected retroactively in all periods presented. See Note 1 - Organization and Basis of Presentation.