Line of Business Information (Tables)

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Components of Other in Segment Reporting

The following is a summary of our line of business results "Other" column for the periods indicated.

	Years Ended December 31,
	Other
(Dollars in millions)	2021		2020		2019
Other Income	$	(111)	$	—	$	—
Net repositioning charges	(3)		133		110
Net acquisition and restructuring costs	65		50		77
Legal and related expenses	18		(9)		172
Deferred incentive compensation expense acceleration	147		—		—
Other expenses	35		—		—
Total	$	151	$	174	$	359

Summary of Line of Business Results

The following is a summary of our line of business results for the periods indicated. The "Other" columns represent certain costs incurred that are not allocated to our two lines of business, including repositioning charges, acquisition costs and certain legal accruals. In addition, the acceleration of deferred compensation of $147 million in 2021 was not allocated to our two lines of business. Prior reported results reflect reclassifications, for comparative purposes, related to management changes in methodologies associated with allocations of revenue and expenses to lines of business in 2021.

	Years Ended December 31,
	Investment Servicing									Investment Management									Other						Total
(Dollars in millions)	2021			2020			2019			2021			2020			2019			2021		2020		2019		2021			2020			2019
Servicing fees	$	5,549		$	5,167		$	5,074		$	—		$	—		$	—		$	—	$	—	$	—	$	5,549		$	5,167		$	5,074
Management fees	—			—			—			2,053			1,880			1,824			—		—		—		2,053			1,880			1,824
Foreign exchange trading services	1,149			1,299			974			62			64			84			—		—		—		1,211			1,363			1,058
Securities finance	402			342			462			14			14			9			—		—		—		416			356			471
Software and processing fees(1)	779			706			691			4			27			29			—		—		—		783			733			720
Total fee revenue	7,879			7,514			7,201			2,133			1,985			1,946			—		—		—		10,012			9,499			9,147
Net interest income	1,919			2,211			2,590			(14)			(11)			(24)			—		—		—		1,905			2,200			2,566
Total other income	(1)			4			43			—			—			—			111		—		—		110			4			43
Total revenue	9,797			9,729			9,834			2,119			1,974			1,922			111		—		—		12,027			11,703			11,756
Provision for credit losses	(33)			88			10			—			—			—			—		—		—		(33)			88			10
Total expenses	7,182			7,071			7,140			1,445			1,471			1,535			262		174		359		8,889			8,716			9,034
Income before income tax expense	$	2,648		$	2,570		$	2,684		$	674		$	503		$	387		$	(151)	$	(174)	$	(359)	$	3,171		$	2,899		$	2,712
Pre-tax margin	27		%	26		%	27		%	32		%	25		%	20		%							26		%	25		%	23		%
Average assets (in billions)	$	296.5		$	266.4		$	220.3		$	3.2		$	2.9		$	3.0								$	299.7		$	269.3		$	223.3

(1) Investment Management includes other revenue items that are primarily driven by equity market movements.