Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2013

Changes in Carrying Amount of Goodwill By Reportable Segments

Changes in the carrying amount of goodwill for our reportable segments for the six months ended June 30, 2013 were as follows:

	Retail		Employer Group		Healthcare Services			Other Businesses		Total
	(in millions)
Balance at January 1, 2013	$	857	$	205	$	2,486		$	92	$	3,640
Acquisitions		0		0		13			0		13
Dispositions		0		0		(15	)		0		(15	)
Balance at June 30, 2013	$	857	$	205	$	2,484		$	92	$	3,638

Details of Intangible Assets Included in Other Long-Term Assets

The following table presents details of our other intangible assets included in other long-term assets in the accompanying condensed consolidated balance sheets at June 30, 2013 and December 31, 2012:

	Weighted		June 30, 2013						December 31, 2012
	Average				Accumulated						Accumulated
	Life		Cost		Amortization		Net		Cost		Amortization		Net
			(in millions)
Other intangible assets:
Customer contracts/relationships		9.5 yrs	$	725	$	267	$	458	$	733	$	237	$	496
Trade names and technology		13.6 yrs		189		30		159		190		21		169
Provider contracts		15.0 yrs		51		21		30		51		19		32
Noncompetes and other		6.5 yrs		51		23		28		51		17		34
Total other intangible assets		10.4 yrs	$	1,016	$	341	$	675	$	1,025	$	294	$	731

Schedule of Estimated Amortization Expense

The following table presents our estimate of amortization expense for 2013 and each of the five next succeeding fiscal years:

	(in millions)
For the years ending December 31,:
2013	$	111
2014		104
2015		92
2016		86
2017		78
2018		71