Segment information (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Information about Company's Segments

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

	For the Years Ended December 31,
	Commercial Bank									Retail Bank							Institutional Services and Wealth Management
(Dollars in millions)	2023			2022			2021			2023		2022		2021			2023		2022			2021
Net interest income (a)	$	2,409		$	2,302		$	1,558		$	4,352	$	3,008	$	1,929		$	700	$	403		$	156
Noninterest income		658			588			509			762		703		831			1,005		1,007			766
		3,067			2,890			2,067			5,114		3,711		2,760			1,705		1,410			922
Provision for credit losses		297			66			169			173		101		69			—		(1	)		—
Amortization of core deposit    and other intangible assets		—			—			1			—		—		—			—		—			—
Depreciation and other    amortization		39			39			39			249		198		152			8		8			9
Other noninterest expense		1,307			1,085			748			2,208		2,009		1,508			859		859			768
Income (loss) before taxes		1,424			1,700			1,110			2,484		1,403		1,031			838		544			145
Income tax expense (benefit)		385			458			297			646		364		266			218		142			38
Net income (loss)	$	1,039		$	1,242		$	813		$	1,838	$	1,039	$	765		$	620	$	402		$	107
Average total assets	$	80,243		$	69,960		$	53,578		$	51,213	$	49,059	$	43,736		$	3,675	$	3,598		$	3,260
Capital expenditures	$	2		$	2		$	3		$	104	$	122	$	55		$	6	$	2		$	12
	All Other									Total
(Dollars in millions)	2023			2022			2021			2023		2022		2021
Net interest income (a)	$	(346	)	$	109		$	182		$	7,115	$	5,822	$	3,825
Noninterest income		103			59			61			2,528		2,357		2,167
		(243	)		168			243			9,643		8,179		5,992
Provision for credit losses		175			351			(313	)		645		517		(75	)
Amortization of core deposit    and other intangible assets		62			56			9			62		56		10
Depreciation and other    amortization		139			134			114			435		379		314
Other noninterest expense		508			662			264			4,882		4,615		3,288
Income (loss) before taxes		(1,127	)		(1,035	)		169			3,619		2,612		2,455
Income tax expense (benefit)		(371	)		(344	)		(5	)		878		620		596
Net income (loss)	$	(756	)	$	(691	)	$	174		$	2,741	$	1,992	$	1,859
Average total assets	$	70,266		$	67,635		$	52,095		$	205,397	$	190,252	$	152,669
Capital expenditures	$	144		$	88		$	79		$	256	$	214	$	149

(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 $54 million in 2023, $39 million in 2022 and $15 million in 2021 and is eliminated in “All Other” net interest income and income tax expense (benefit).

Intersegment Activity Eliminated in Arriving at Consolidated Totals was Included in "All Other" Category

The amount of intersegment activity eliminated in arriving at consolidated totals was included in the “All Other” category as follows:

	Year Ended December 31,
(Dollars in millions)	2023			2022			2021
Revenues	$	(17	)	$	(14	)	$	(12	)
Expenses		(3	)		(2	)		(2	)
Income taxes		(4	)		(3	)		(3	)
Net income		(10	)		(9	)		(7	)