Line of Business Information (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

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 costs incurred that are not allocated to a specific line of business, including certain severance and restructuring costs, acquisition costs and certain provisions for legal contingencies.

	Three Months Ended September 30,
	Investment Servicing						Investment Management						Other						Total
(Dollars in millions)	2018			2017			2018			2017			2018			2017			2018			2017
Servicing fees	$	1,333		$	1,351		$	—		$	—		$	—		$	—		$	1,333		$	1,351
Management fees	—			—			474			419			—			—			474			419
Trading services	255			239			33			20			—			—			288			259
Securities finance	128			147			—			—			—			—			128			147
Processing fees and other	49			65			8			1			—			—			57			66
Total fee revenue	1,765			1,802			515			440			—			—			2,280			2,242
Net interest income	680			606			(8		)	(3		)	—			—			672			603
Gains (losses) related to investment securities, net	(1		)	1			—			—			—			—			(1		)	1
Total revenue	2,444			2,409			507			437			—			—			2,951			2,846
Provision for loan losses	5			3			—			—			—			—			5			3
Total expenses	1,693			1,673			386			314			—			34			2,079			2,021
Income before income tax expense	$	746		$	733		$	121		$	123		$	—		$	(34	)	$	867		$	822
Pre-tax margin	31		%	30		%	24		%	28		%							29		%	29		%
	Nine Months Ended September 30,
	Investment Servicing						Investment Management						Other						Total
(Dollars in millions)	2018			2017			2018			2017			2018			2017			2018			2017
Servicing fees	$	4,135		$	3,986		$	—		$	—		$	—		$	—		$	4,135		$	3,986
Management fees	—			—			1,411			1,198			—			—			1,411			1,198
Trading services	810			768			97			55			—			—			907			823
Securities finance	423			459			—			—			—			—			423			459
Processing fees and other	131			203			9			6			—			—			140			209
Total fee revenue	5,499			5,416			1,517			1,259			—			—			7,016			6,675
Net interest income	1,991			1,691			(17		)	(3		)	—			—			1,974			1,688
Gains (losses) related to investment securities, net	6			(39		)	—			—			—			—			6			(39		)
Total revenue	7,496			7,068			1,500			1,256			—			—			8,996			8,324
Provision for loan losses	7			4			—			—			—			—			7			4
Total expenses	5,244			5,050			1,173			954			77			134			6,494			6,138
Income before income tax expense	$	2,245		$	2,014		$	327		$	302		$	(77	)	$	(134	)	$	2,495		$	2,182
Pre-tax margin	30		%	28		%	22		%	24		%							28		%	26		%