Other Intangible Assets, Net

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

OTHER INTANGIBLE ASSETS, NET

13. OTHER INTANGIBLE ASSETS, NET

Other intangible assets are classified into the following categories:

• Client Relationships

• Management Contracts

• Other, including:

• non-compete agreements

• trade names

• contract based, technology and other

The major classes of amortizable intangible assets are as follows:

	December 31, 2014							December 31, 2013
	Gross carrying amount		Accumulated amortization			Net carrying amount		Gross carrying amount		Accumulated amortization			Net carrying amount
	(millions)
Client relationships	$	689	$	(316	)	$	373	$	671	$	(326	)	$	345
Management contracts	71		(1		)	70		—		—			—
Other	11		(4		)	7		14		(6		)	8
Total amortizable intangible assets	$	771	$	(321	)	$	450	$	685	$	(332	)	$	353

The aggregate amortization of intangible assets for the year ended December 31, 2014 was $54 million (2013: $55 million; 2012: $59 million). The estimated aggregate amortization of intangible assets for each of the next five years ended December 31 is as follows:

	(millions)
2015	$	57
2016	51
2017	46
2018	41
2019	37
Thereafter	218
Total	$	450