Line of Business Information (Tables)

3 Months Ended

Mar. 31, 2017

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" column represents 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 March 31,
	Investment Servicing						Investment Management						Other						Total
(Dollars in millions)	2017			2016			2017			2016			2017			2016			2017			2016
Servicing fees	$	1,296		$	1,242		$	—		$	—		$	—		$	—		$	1,296		$	1,242
Management fees	—			—			382			270			—			—			382			270
Trading services	257			258			18			14			—			—			275			272
Securities finance	133			134			—			—			—			—			133			134
Processing fees and other	106			49			6			3			—			—			112			52
Total fee revenue	1,792			1,683			406			287			—			—			2,198			1,970
Net interest income	509			511			1			1			—			—			510			512
Gains (losses) related to investment securities, net	(40		)	2			—			—			—			—			(40		)	2
Total revenue	2,261			2,196			407			288			—			—			2,668			2,484
Provision for loan losses	(2		)	4			—			—			—			—			(2		)	4
Total expenses	1,728			1,687			329			256			29			107			2,086			2,050
Income before income tax expense	$	535		$	505		$	78		$	32		$	(29	)	$	(107	)	$	584		$	430
Pre-tax margin	24		%	23		%	19		%	11		%							22		%	17		%