Line of Business Information (Tables)

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Summary of Line of Business Results

The following table is a summary of our line of business results for the periods indicated. The "Other" columns represent costs incurred that are not allocated to a specific line of business, certain employee costs, including certain severance and restructuring costs, acquisition costs and certain provisions for legal contingencies.

	Three Months Ended March 31,
	Investment Servicing						Investment Management						Other				Total
(Dollars in millions)	2022			2021			2022			2021			2022		2021		2022			2021
Servicing fees	$	1,368		$	1,369		$	—		$	—		$	—	$	—	$	1,368		$	1,369
Management fees	—			—			520			493			—		—		520			493
Foreign exchange trading services	342			333			17			13			—		—		359			346
Securities finance	93			95			3			4			—		—		96			99
Software and processing fees	201			160			—			—			—		—		201			160
Other fee revenue	46			14			(17)			2			—		—		29			16
Total fee revenue	2,050			1,971			523			512			—		—		2,573			2,483
Net interest income	509			473			—			(6)			—		—		509			467
Total other income	(1)			—			—			—			—		—		(1)			—
Total revenue	2,558			2,444			523			506			—		—		3,081			2,950
Provision for credit losses	—			(9)			—			—			—		—		—			(9)
Total expenses	1,925			1,879			389			397			13		56		2,327			2,332
Income before income tax expense	$	633		$	574		$	134		$	109		$	(13)	$	(56)	$	754		$	627
Pre-tax margin	25		%	23		%	26		%	21		%					24		%	21		%