Segment Information (Tables)

12 Months Ended

Dec. 31, 2010

Segment Information [Abstract]

Schedule Of Segment Reporting Information, By Segment

	Retail		Employer Group		Health and Well-Being Services		Other Businesses			Eliminations/ Corporate			Consolidated
	(in thousands)
2010
Revenues - external customers
Premiums:
Medicare Advantage	$	16,265,839	$	3,020,282	$	0	$	0		$	0		$	19,286,121
Medicare stand-alone PDP		1,960,063		4,598		0		355,399			0			2,320,060
Total Medicare		18,225,902		3,024,880		0		355,399			0			21,606,181
Fully-insured		745,329		5,168,713		0		0			0			5,914,042
Specialty		81,481		885,310		0		0			0			966,791
Military services		0		0		0		3,462,544			0			3,462,544
Medicaid and other		0		0		0		762,765			0			762,765
Total premiums		19,052,712		9,078,903		0		4,580,708			0			32,712,323
Services revenue:
Provider		0		0		34,104		0			0			34,104
ASO and other		11,105		394,950		0		115,021			0			521,076
Total services revenue		11,105		394,950		34,104		115,021			0			555,180
Total revenues - external customers		19,063,817		9,473,853		34,104		4,695,729			0			33,267,503
Intersegment revenues
Services		0		13,137		7,493,941		0			(7,507,078	)		0
Products		0		0		1,291,572		0			(1,291,572	)		0
Total intersegment revenues		0		13,137		8,785,513		0			(8,798,650	)		0
Investment income		80,525		42,205		0		42,581			164,021			329,332
Total revenues		19,144,342		9,529,195		8,819,617		4,738,310			(8,634,629	)		33,596,835
Operating expenses:
Benefits		15,625,243		7,485,497		0		4,252,333			(246,004	)		27,117,069
Operating costs		2,113,011		1,662,166		8,575,077		475,463			(8,445,398	)		4,380,319
Depreciation and amortization		117,219		93,478		25,622		11,865			(3,359	)		244,825
Total operating expenses		17,855,473		9,241,141		8,600,699		4,739,661			(8,694,761	)		31,742,213
Income from operations		1,288,869		288,054		218,918		(1,351	)		60,132			1,854,622
Interest expense		0		0		0		0			105,060			105,060
Income (loss) before income taxes	$	1,288,869	$	288,054	$	218,918	$	(1,351	)	$	(44,928	)	$	1,749,562

	Retail		Employer Group			Health and Well-Being Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in thousands)
2009
Revenues - external customers
Premiums:
Medicare Advantage	$	15,333,225	$	1,080,076		$	0	$	0	$	0		$	16,413,301
Medicare stand-alone PDP		2,322,432		4,986			0		0		0			2,327,418
Total Medicare		17,655,657		1,085,062			0		0		0			18,740,719
Fully-insured		638,044		5,547,114			0		0		0			6,185,158
Specialty		54,837		834,413			0		0		0			889,250
Military services		0		0			0		3,426,739		0			3,426,739
Medicaid and other		0		0			0		684,885		0			684,885
Total premiums		18,348,538		7,466,589			0		4,111,624		0			29,926,751
Services revenue:
Provider		0		0			16,412		0		0			16,412
ASO and other		10,049		369,684			0		123,362		0			503,095
Total services revenue		10,049		369,684			16,412		123,362		0			519,507
Total revenues - external customers		18,358,587		7,836,273			16,412		4,234,986		0			30,446,258
Intersegment revenues
Services		0		13,814			8,002,820		0		(8,016,634	)		0
Products		0		0			949,095		0		(949,095	)		0
Total intersegment revenues		0		13,814			8,951,915		0		(8,965,729	)		0
Investment income		88,013		47,573			0		23,361		137,370			296,317
Total revenues		18,446,600		7,897,660			8,968,327		4,258,347		(8,828,359	)		30,742,575
Operating expenses:
Benefits		14,987,915		6,289,033			0		3,704,460		(197,832	)		24,783,576
Operating costs		1,984,817		1,533,069			8,767,686		431,051		(8,702,639	)		4,013,984
Depreciation and amortization		115,102		88,861			18,111		25,001		(9,663	)		237,412
Total operating expenses		17,087,834		7,910,963			8,785,797		4,160,512		(8,910,134	)		29,034,972
Income from operations		1,358,766		(13,303	)		182,530		97,835		81,775			1,707,603
Interest expense		0		0			0		0		105,843			105,843
Income (loss) before income taxes	$	1,358,766	$	(13,303	)	$	182,530	$	97,835	$	(24,068	)	$	1,601,760

	Retail		Employer Group		Health and Well-Being Services		Other Businesses		Eliminations/ Corporate			Consolidated
	(in thousands)
2008
Revenues - external customers
Premiums:
Medicare Advantage	$	12,987,639	$	790,360	$	0	$	0	$	0		$	13,777,999
Medicare stand-alone PDP		3,375,636		4,764		0		0		0			3,380,400
Total Medicare		16,363,275		795,124		0		0		0			17,158,399
Fully-insured		519,077		5,650,326		0		0		0			6,169,403
Specialty		66,338		819,249		0		0		0			885,587
Military services		0		0		0		3,218,270		0			3,218,270
Medicaid and other		0		0		0		633,185		0			633,185
Total premiums		16,948,690		7,264,699		0		3,851,455		0			28,064,844
Services revenue:
Provider		0		0		14,845		0		0			14,845
ASO and other		10,965		352,769		0		89,660		0			453,394
Total services revenue		10,965		352,769		14,845		89,660		0			468,239
Total revenues - external customers		16,959,655		7,617,468		14,845		3,941,115		0			28,533,083
Intersegment revenues
Services		0		12,706		10,505,782		0		(10,518,488	)		0
Products		0		0		836,828		0		(836,828	)		0
Total intersegment revenues		0		12,706		11,342,610		0		(11,355,316	)		0
Investment income		60,399		36,515		0		7,316		115,985			220,215
Total revenues		17,020,054		7,666,689		11,357,455		3,948,431		(11,239,331	)		28,753,298
Operating expenses:
Benefits		14,398,572		6,057,804		0		3,438,619		(164,889	)		23,730,106
Operating costs		1,848,651		1,433,365		11,187,070		420,459		(11,149,890	)		3,739,655
Depreciation and amortization		101,663		78,872		14,343		23,773		(8,251	)		210,400
Total operating expenses		16,348,886		7,570,041		11,201,413		3,882,851		(11,323,030	)		27,680,161
Income from operations		671,168		96,648		156,042		65,580		83,699			1,073,137
Interest expense		0		0		0		0		80,289			80,289
Income before income taxes	$	671,168	$	96,648	$	156,042	$	65,580	$	3,410		$	992,848