Goodwill and Other Intangible Assets

Changes in the carrying amount of goodwill, by reportable segment, were as follows:



(in millions)	UnitedHealthcare			OptumHealth		OptumInsight			OptumRx		Consolidated
Balance at January 1, 2010 (a)	$	17,851		$	573	$	1,463		$	840	$	20,727
Acquisitions	—			187		2,022			—		2,209
Impairments	—			—		(172		)	—		(172		)
Adjustments, net	(14		)	—		(5		)	—		(19		)
Balance at December 31, 2010	17,837			760		3,308			840		22,745
Acquisitions	101			1,353		—			—		1,454
Dispositions	(2		)	—		(214		)	—		(216		)
Adjustments, net	(4		)	—		(4		)	—		(8		)
Balance at December 31, 2011	$	17,932		$	2,113	$	3,090		$	840	$	23,975


(a)	Prior period reportable segment financial information has been recast to conform to the 2011 presentation as discussed in Note 2 of Notes to the Consolidated Financial Statements.

In 2010, there was a decline in the economic environment and competitive landscape for the clinical trial support businesses within one of the OptumInsight reporting units. These businesses experienced unexpected declines in new business authorizations from historical levels including continued delays in and lengthening of the selling cycle. During this time the Company began evaluating strategic options with respect to the clinical trial support businesses. In December 2010, as part of the annual goodwill impairment analysis, the Company considered the aforementioned market conditions and operating results as well as indications of interest the Company began to receive on the clinical trial support businesses as the fair value of the reporting unit was evaluated. As a result of that analysis, the Company determined that the implied fair value of the reporting unit was less than its carrying value and an impairment charge of $172 million was recorded. The implied fair value of the reporting unit was determined by a combination of valuation techniques, including discounting future expected cash flows and expected sale proceeds. The Company sold a significant portion of this reporting unit in 2011 resulting in a reduction of goodwill upon disposal.

The gross carrying value, accumulated amortization and net carrying value of other intangible assets were as follows:



	December 31, 2011							December 31, 2010
(in millions)	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Gross Carrying Value		Accumulated Amortization			Net Carrying Value
Customer-related	$	3,766	$	(1,310	)	$	2,456	$	3,623	$	(1,038	)	$	2,585
Trademarks and technology	368		(98		)	270		505		(246		)	259
Other	112		(43		)	69		132		(66		)	66
Total	$	4,246	$	(1,451	)	$	2,795	$	4,260	$	(1,350	)	$	2,910

The acquisition date fair values and weighted-average useful lives assigned to finite-lived intangible assets acquired in business combinations consisted of the following by year of acquisition:



	2011			2010
(in millions, except years)	Fair Value		Weighted-Average Useful Life	Fair Value		Weighted-Average Useful Life
Customer-related	$	187	9 years	$	786	14 years
Trademarks and technology	49		5 years	94		8 years
Other	5		15 years	14		9 years
Total acquired finite-lived intangible assets	$	241	9 years	$	894	13 years

Estimated full year amortization expense relating to intangible assets for each of the next five years is as follows:



(in millions)	Estimated Amortization Expense
2012	$	361
2013	328
2014	316
2015	299
2016	277

Amortization expense relating to intangible assets for 2011, 2010 and 2009 was $361 million, $317 million and $241 million, respectively.