Line of Business Information (Tables)

12 Months Ended

Dec. 31, 2017

The following is a summary of our line of business results for the periods indicated. The amounts in the “Other” columns were not allocated to State Street's business lines. 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 2017.



	Years Ended December 31,
	Investment Servicing									Investment Management									Other									Total
(Dollars in millions)	2017			2016			2015			2017			2016			2015			2017			2016			2015			2017			2016			2015
Servicing fees	$	5,365		$	5,073		$	5,153		$	—		$	—		$	—		$	—		$	—		$	—		$	5,365		$	5,073		$	5,153
Management fees	—			—			—			1,616			1,292			1,174			—			—			—			1,616			1,292			1,174
Trading services	999			1,038			1,091			72			61			55			—			—			—			1,071			1,099			1,146
Securities finance	606			562			496			—			—			—			—			—			—			606			562			496
Processing fees and other	240			119			342			7			(29		)	(33		)	—			—			—			247			90			309
Total fee revenue	7,210			6,792			7,082			1,695			1,324			1,196			—			—			—			8,905			8,116			8,278
Net interest income	2,309			2,081			2,086			(5		)	3			2			—			—			—			2,304			2,084			2,088
Gains (losses) related to investment securities, net	(39		)	7			(6		)	—			—			—			—			—			—			(39		)	7			(6		)
Total revenue	9,480			8,880			9,162			1,690			1,327			1,198			—			—			—			11,170			10,207			10,360
Provision for loan losses	2			10			12			—			—			—			—			—			—			2			10			12
Total expenses	6,717			6,660			6,990			1,286			1,218			962			266			199			98			8,269			8,077			8,050
Income before income tax expense	$	2,761		$	2,210		$	2,160		$	404		$	109		$	236		$	(266	)	$	(199	)	$	(98	)	$	2,899		$	2,120		$	2,298
Pre-tax margin	29		%	25		%	24		%	24		%	8		%	20		%										26		%	21		%	22		%

Average assets (in billions)	$	214.0		$	225.3		$	246.6		$	5.4		$	4.4		$	3.9											$	219.4		$	229.7		$	250.5