Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in the net carrying amount of goodwill by operating segment

The changes in the net carrying amount of goodwill by reportable segment for the six months ended June 30, 2014 are as follows (in millions):

	Risk Solutions			HR Solutions		Total
Balance as of December 31, 2013	$	6,020		$	2,977	$	8,997
Goodwill related to current year acquisitions	48			4		52
Goodwill related to prior year acquisitions	(2		)	—		(2		)
Transfer	(2		)	2		—
Foreign currency translation	43			9		52
Balance as of June 30, 2014	$	6,107		$	2,992	$	9,099

Schedule of other intangible assets by asset class

Other intangible assets by asset class are as follows (in millions):

	June 30, 2014						December 31, 2013
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Intangible assets with indefinite lives:
Tradenames	$	1,019	$	—	$	1,019	$	1,019	$	—	$	1,019
Intangible assets with finite lives:
Customer related and contract based	2,788		1,469		1,319		2,720		1,310		1,410
Marketing, technology and other	593		463		130		584		435		149
	$	4,400	$	1,932	$	2,468	$	4,323	$	1,745	$	2,578

Schedule of estimated future amortization expense on intangible assets

The estimated future amortization for finite lived intangible assets as of June 30, 2014 is as follows (in millions):

	Risk Solutions		HR Solutions		Total
Remainder of 2014	$	54	$	124	$	178
2015	94		213		307
2016	77		178		255
2017	64		141		205
2018	53		94		147
Thereafter	104		253		357
	$	446	$	1,003	$	1,449