Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 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	54			4		58
Goodwill related to disposals	(2		)	—		(2		)
Goodwill related to prior year acquisitions	—			67		67
Transfers	(83		)	83		—
Foreign currency revaluation and other	11			54		65
Balance as of September 30, 2011	$	5,529		$	3,306	$	8,835

Schedule of other intangible assets by asset class

	September 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	4		1		3		3		—		3
Customer Related and Contract Based	2,608		543		2,065		2,605		344		2,261
Marketing, Technology and Other	607		338		269		606		283		323
	$	4,243	$	882	$	3,361	$	4,238	$	627	$	3,611

Schedule of estimated future amortization expense on intangible assets

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

Remainder of 2011	$	88
2012	413
2013	383
2014	333
2015	287
Thereafter	833
	$	2,337