Segment information (Tables)

12 Months Ended

Dec. 31, 2024

Segment Reporting [Abstract]

Information about Company's Segments

Information about the Company’s segments is presented in the accompanying table.

	Year Ended December 31,
	Commercial Bank						Retail Bank						Institutional Services and Wealth Management
(Dollars in millions)	2024		2023		2022		2024		2023		2022		2024		2023		2022
Net interest income (a)	$	2,212	$	2,409	$	2,302	$	4,288	$	4,352	$	3,008	$	748	$	700	$	403
Noninterest income	672		658		588		810		762		703		809		1,005		1,007
Total revenue	2,884		3,067		2,890		5,098		5,114		3,711		1,557		1,705		1,410
Provision for credit losses	266		297		66		288		173		101		6		—		(1)
Salaries and employee benefits	610		577		483		778		779		694		413		405		376
Depreciation and amortization	39		39		39		252		249		198		9		8		8
Other direct expenses	285		275		213		421		465		386		102		156		211
Indirect expense (b)	490		455		389		1,048		964		929		307		298		272
Income (loss) before taxes	1,194		1,424		1,700		2,311		2,484		1,403		720		838		544
Income tax expense (benefit)	323		385		458		595		646		364		185		218		142
Net income (loss)	$	871	$	1,039	$	1,242	$	1,716	$	1,838	$	1,039	$	535	$	620	$	402
Average total assets	$	80,864	$	80,243	$	69,960	$	53,043	$	51,213	$	49,059	$	3,800	$	3,675	$	3,598

	All Other						Total (c)
(Dollars in millions)	2024		2023		2022		2024		2023		2022
Net interest income (a)	$	(396)	$	(346)	$	109	$	6,852	$	7,115	$	5,822
Noninterest income	136		103		59		2,427		2,528		2,357
Total revenue	(260)		(243)		168		9,279		9,643		8,179
Provision for credit losses	50		175		351		610		645		517
Salaries and employee benefits	1,361		1,236		1,234		3,162		2,997		2,787
Depreciation and amortization	208		201		190		508		497		435
Other direct expenses	881		989		1,018		1,689		1,885		1,828
Indirect expense (b)	(1,845)		(1,717)		(1,590)		—		—		—
Income (loss) before taxes	(915)		(1,127)		(1,035)		3,310		3,619		2,612
Income tax expense (benefit)	(381)		(371)		(344)		722		878		620
Net income (loss)	$	(534)	$	(756)	$	(691)	$	2,588	$	2,741	$	1,992
Average total assets	$	73,513	$	70,266	$	67,635	$	211,220	$	205,397	$	190,252

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(a)Net interest income is the difference between actual taxable-equivalent interest earned on assets and interest paid on liabilities by a segment and a funding charge (credit) based on the Company’s internal funds transfer pricing methodology. Segments are charged a cost to fund any assets (e.g. loans) and are paid a funding credit for any funds provided (e.g. deposits). The taxable-equivalent adjustment aggregated $50 million in 2024, $54 million in 2023 and $39 million in 2022 and is eliminated in "All Other" net interest income and income tax expense (benefit).

(b)Indirect expense represents centrally-allocated costs associated with data processing, risk management and other support services provided by the "All Other" category to the Commercial Bank, Retail Bank and Institutional Services and Wealth Management segments.

(c)Intersegment revenues and expenses were not material for the years ended December 31, 2024, 2023 and 2022.