Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2011

Goodwill and Other Intangible Assets

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

	Risk Solutions			HR Solutions			Total
Balance as of December 31, 2010	$	5,549		$	3,098		$	8,647
Goodwill related to current year acquisitions	59			—			59
Goodwill related to disposals	(2		)	—			(2		)
Goodwill related to prior year acquisitions	—			18			18
Transfers	83			(83		)	—
Foreign currency revaluation and other	270			(17		)	253
Balance as of June 30, 2011	$	5,959		$	3,016		$	8,975

Schedule of other intangible assets by asset class

	June 30, 2011						December 31, 2010
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Intangible assets with indefinite lives:
Trademarks	$	1,024	$	—	$	1,024	$	1,024	$	—	$	1,024
Intangible assets with finite lives:
Trademarks	6		1		5		3		—		3
Customer Related and Contract Based	2,655		490		2,165		2,605		344		2,261
Marketing, Technology and Other	621		331		290		606		283		323
	$	4,306	$	822	$	3,484	$	4,238	$	627	$	3,611

Schedule of estimated future amortization expense on intangible assets

The estimated future amortization for intangible assets as of June 30, 2011 is as follows (in millions):

Remainder of 2011	$	232
2012	418
2013	387
2014	336
2015	289
Thereafter	798
	$	2,460