Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Changes by Reporting Segment in Carrying Amounts of Goodwill, including Effect of Foreign Exchange Rates on Non-U.S.-Dollar-Denominated Balances

Changes by reporting segment in the carrying amount of goodwill for the years ended December 31, 2017 and 2016, including the effect of foreign exchange rates on non-U.S.-dollar-denominated balances, were as follows:

TABLE 73: GOODWILL

(In Millions)	CORPORATE & INSTITUTIONAL SERVICES			WEALTH MANAGEMENT			TOTAL
Balance at December 31, 2015	$	455.1		$	71.3		$	526.4
Goodwill Acquired	11.8			—			11.8
Foreign Exchange Rates	(18.5		)	(0.3		)	(18.8		)
Balance at December 31, 2016	$	448.4		$	71.0		$	519.4
Goodwill Acquired	78.3			—			78.3
Measurement Period Adjustments	(1.3		)	—			(1.3		)
Foreign Exchange Rates	9.1			0.1			9.2
Balance at December 31, 2017	$	534.5		$	71.1		$	605.6

Other Intangible Assets Subject to Amortization

The gross carrying amount and accumulated amortization of other intangible assets subject to amortization as of December 31, 2017 and 2016 were as follows:

TABLE 74: OTHER INTANGIBLE ASSETS

	DECEMBER 31,
(In Millions)	2017		2016
Gross Carrying Amount	$	222.7	$	89.0
Less: Accumulated Amortization	61.3		47.2
Net Book Value	$	161.4	$	41.8