Goodwill And Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2011

Goodwill And Other Intangible Assets [Abstract]

Changes In Carrying Amount Of Goodwill By Reportable Segments

	Retail		Employer Group		Health  & Well-Being Services		Other Businesses		Total
	(in millions)
Balance at December 31, 2009	$	565	$	53	$	1,318	$	57	$	1,993
Acquisitions		0		0		538		0		538
Subsequent payments/adjustments		28		9		0		0		37
Balance at December 31, 2010		593		62		1,856		57		2,568
Acquisitions		161		0		8		0		169
Subsequent payments/adjustments		0		0		3		0		3
Balance at December 31, 2011	$	754	$	62	$	1,867	$	57	$	2,740

Details Of Intangible Assets Included In Other Long-Term Assets

	Weighted Average Life		2011						2010
			Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
	(in millions)
Other intangible assets:
Customer contracts/relationships		10.6 yrs	$	429	$	182	$	247	$	414	$	146	$	268
Trade names and technology		15.1 yrs		135		6		129		87		2		85
Provider contracts		15.9 yrs		44		15		29		43		12		31
Noncompetes and other		6.9 yrs		40		10		30		19		4		15
Total other intangible assets		11.7 yrs	$	648	$	213	$	435	$	563	$	164	$	399

Schedule Of Estimated Amortization Expense

	(in millions)
For the years ending December 31,:
2012	$	64
2013		60
2014		56
2015		49
2016		43