SEGMENT INFORMATION

We manage our business with four reportable segments: Retail, Group and Specialty, Healthcare Services and Individual Commercial. In addition, the Other Businesses category includes businesses that are not individually reportable because they do not meet the quantitative thresholds required by generally accepted accounting principles. These segments are based on a combination of the type of health plan customer and adjacent businesses centered on well-being solutions for our health plans and other customers, as described below. These segment groupings are consistent with information used by our Chief Executive Officer to assess performance and allocate resources.

The Retail segment consists of Medicare benefits, marketed to individuals or directly via group accounts. In addition, the Retail segment also includes our contract with CMS to administer the Limited Income Newly Eligible Transition, or LI-NET, prescription drug plan program and contracts with various states to provide Medicaid, dual eligible, and Long-Term Support Services benefits, which we refer to collectively as our state-based contracts. The Group and Specialty segment consists of employer group commercial fully-insured medical and specialty health insurance benefits marketed to individuals and employer groups, including dental, vision, and other supplemental health and voluntary insurance benefits and financial protection products, as well as administrative services only, or ASO products. In addition, our Group and Specialty segment includes military services business, primarily our TRICARE T2017 East Region contract. The Healthcare Services segment includes services offered to our health plan members as well as to third parties, including pharmacy solutions, provider services, and clinical care service, such as home health and other services and capabilities to promote wellness and advance population health. The Individual Commercial segment consisted of our individual commercial fully-insured medical health insurance benefits. We report under the category of Other Businesses those businesses that do not align with the reportable segments described above, primarily our closed-block long-term care insurance policies.

Our Healthcare Services intersegment revenues primarily relate to managing prescription drug coverage for members of our other segments through Humana Pharmacy Solutions^®, or HPS, and includes the operations of Humana Pharmacy, Inc., our mail order pharmacy business. These revenues consist of the prescription price (ingredient cost plus dispensing fee), including the portion to be settled with the member (co-share) or with the government (subsidies), plus any associated administrative fees. Services revenues related to the distribution of prescriptions by third party retail pharmacies in our networks are recognized when the claim is processed and product revenues from dispensing prescriptions from our mail order pharmacies are recorded when the prescription or product is shipped. Our pharmacy operations, which are responsible for designing pharmacy benefits, including defining member co-share responsibilities, determining formulary listings, contracting with retail pharmacies, confirming member eligibility, reviewing drug utilization, and processing claims, act as a principal in the arrangement on behalf of members in our other segments. As principal, our Healthcare Services segment reports revenues on a gross basis, including co-share amounts from members collected by third party retail pharmacies at the point of service.

In addition, our Healthcare Services intersegment revenues include revenues earned by certain owned providers derived from risk-based and non-risk-based managed care agreements with our health plans. Under risk based agreements, the provider receives a monthly capitated fee that varies depending on the demographics and health status of the member, for each member assigned to these owned providers by our health plans. The owned provider assumes the economic risk of funding the assigned members’ healthcare services. Under non risk-based agreements, our health plans retain the economic risk of funding the assigned members' healthcare services. Our Healthcare Services segment reports provider services revenues associated with risk-based agreements on a gross basis, whereby capitation fee revenue is recognized in the period in which the assigned members are entitled to receive healthcare services. Provider services revenues associated with non-risk-based agreements are presented net of associated healthcare costs.

We present our consolidated results of operations from the perspective of the health plans. As a result, the cost of providing benefits to our members, whether provided via a third party provider or internally through a stand-alone subsidiary, is classified as benefits expense and excludes the portion of the cost for which the health plans do not bear responsibility, including member co-share amounts and government subsidies of $3.3 billion and $3.2 billion for the three months ended June 30, 2018 and 2017, respectively. For the six months ended June 30, 2018 and 2017 these amounts were both $6.2 billion. In addition, depreciation and amortization expense associated with certain businesses in our Healthcare Services segment delivering benefits to our members, primarily associated with our provider services and pharmacy operations, are included with benefits expense. The amount of this expense was $30 million and $27 million for the three months ended June 30, 2018 and 2017, respectively. For the six months ended June 30, 2018 and 2017, the amount of this expense was $69 million and $53 million, respectively.

Other than those described previously, the accounting policies of each segment are the same and are described in Note 2 to the consolidated financial statements included in our 2017 Form 10-K. Transactions between reportable segments primarily consist of sales of services rendered by our Healthcare Services segment, primarily pharmacy, provider, and clinical care services, to our Retail, Group and Specialty, and Individual Commercial segment customers. Intersegment sales and expenses are recorded at fair value and eliminated in consolidation. Members served by our segments often use the same provider networks, enabling us in some instances to obtain more favorable contract terms with providers. Our segments also share indirect costs and assets. As a result, the profitability of each segment is interdependent. We allocate most operating expenses to our segments. Assets and certain corporate income and expenses are not allocated to the segments, including the portion of investment income not supporting segment operations, interest expense on corporate debt, and certain other corporate expenses. These items are managed at a corporate level. These corporate amounts are reported separately from our reportable segments and are included with intersegment eliminations in the tables presenting segment results below.

Our segment results were as follows for the three and six months ended June 30, 2018 and 2017:





	Retail		Group and Specialty		Healthcare Services		Individual Commercial			Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Three months ended June 30, 2018
Revenues - external customers
Premiums:
Individual Medicare Advantage	$	8,908	$	—	$	—	$	—		$	—	$	—		$	8,908
Group Medicare Advantage	1,509		—		—		—			—		—			1,509
Medicare stand-alone PDP	914		—		—		—			—		—			914
Total Medicare	11,331		—		—		—			—		—			11,331
Fully-insured	125		1,346		—		10			—		—			1,481
Specialty	—		342		—		—			—		—			342
Medicaid and other	550		—		—		—			9		—			559
Total premiums	12,006		1,688		—		10			9		—			13,713
Services revenue:
Provider	—		—		112		—			—		—			112
ASO and other	3		208		—		—			2		—			213
Pharmacy	—		—		57		—			—		—			57
Total services revenue	3		208		169		—			2		—			382
Total revenues - external customers	12,009		1,896		169		10			11		—			14,095
Intersegment revenues
Services	—		4		4,194		—			—		(4,198		)	—
Products	—		—		1,611		—			—		(1,611		)	—
Total intersegment revenues	—		4		5,805		—			—		(5,809		)	—
Investment income	30		6		17		—			65		46			164
Total revenues	12,039		1,906		5,991		10			76		(5,763		)	14,259
Operating expenses:
Benefits	10,270		1,357		—		(9		)	39		(121		)	11,536
Operating costs	1,210		447		5,749		1			2		(5,648		)	1,761
Depreciation and amortization	66		22		36		—			—		(24		)	100
Total operating expenses	11,546		1,826		5,785		(8		)	41		(5,793		)	13,397
Income from operations	493		80		206		18			35		30			862
Loss on business held-for-sale	—		—		—		—			—		(790		)	(790		)
Interest expense	—		—		—		—			—		53			53
Income (loss) before income taxes	$	493	$	80	$	206	$	18		$	35	$	(813	)	$	19





	Retail		Group and Specialty		Healthcare Services		Individual Commercial		Other Businesses			Eliminations/ Corporate			Consolidated
	(in millions)
Three months ended June 30, 2017
Revenues - external customers
Premiums:
Individual Medicare Advantage	$	8,282	$	—	$	—	$	—	$	—		$	—		$	8,282
Group Medicare Advantage	1,277		—		—		—		—			—			1,277
Medicare stand-alone PDP	925		—		—		—		—			—			925
Total Medicare	10,484		—		—		—		—			—			10,484
Fully-insured	118		1,350		—		247		—			—			1,715
Specialty	—		323		—		—		—			—			323
Medicaid and other	671		—		—		—		10			—			681
Total premiums	11,273		1,673		—		247		10			—			13,203
Services revenue:
Provider	—		—		63		—		—			—			63
ASO and other	2		143		—		—		2			—			147
Pharmacy	—		—		20		—		—			—			20
Total services revenue	2		143		83		—		2			—			230
Total revenues - external customers	11,275		1,816		83		247		12			—			13,433
Intersegment revenues
Services	—		5		4,309		—		—			(4,314		)	—
Products	—		—		1,582		—		—			(1,582		)	—
Total intersegment revenues	—		5		5,891		—		—			(5,896		)	—
Investment income	24		7		8		1		21			40			101
Total revenues	11,299		1,828		5,982		248		33			(5,856		)	13,534
Operating expenses:
Benefits	9,672		1,312		—		86		32			(213		)	10,889
Operating costs	963		394		5,677		40		2			(5,623		)	1,453
Depreciation and amortization	57		21		35		4		—			(25		)	92
Total operating expenses	10,692		1,727		5,712		130		34			(5,861		)	12,434
Income (loss) from operations	607		101		270		118		(1		)	5			1,100
Interest expense	—		—		—		—		—			58			58
Income (loss) before income taxes	$	607	$	101	$	270	$	118	$	(1	)	$	(53	)	$	1,042




	Retail		Group and Specialty		Healthcare Services		Individual Commercial			Other Businesses		Eliminations/ Corporate			Consolidated
	(in millions)
Six months ended June 30, 2018
Revenues - external customers
Premiums:
Individual Medicare Advantage	$	17,878	$	—	$	—	$	—		$	—	$	—		$	17,878
Group Medicare Advantage	3,033		—		—		—			—		—			3,033
Medicare stand-alone PDP	1,810		—		—		—			—		—			1,810
Total Medicare	22,721		—		—		—			—		—			22,721
Fully-insured	250		2,738		—		5			—		—			2,993
Specialty	—		689		—		—			—		—			689
Medicaid and other	1,103		—		—		—			18		—			1,121
Total premiums	24,074		3,427		—		5			18		—			27,524
Services revenue:
Provider	—		—		177		—			—		—			177
ASO and other	5		427		—		—			4		—			436
Pharmacy	—		—		96		—			—		—			96
Total services revenue	5		427		273		—			4		—			709
Total revenues - external customers	24,079		3,854		273		5			22		—			28,233
Intersegment revenues
Services	—		9		8,212		—			—		(8,221		)	—
Products	—		—		3,146		—			—		(3,146		)	—
Total intersegment revenues	—		9		11,358		—			—		(11,367		)	—
Investment income	67		13		23		—			100		102			305
Total revenues	24,146		3,876		11,654		5			122		(11,265		)	28,538
Operating expenses:
Benefits	20,822		2,630		—		(69		)	65		(242		)	23,206
Operating costs	2,432		910		11,190		3			4		(11,029		)	3,510
Depreciation and amortization	132		45		85		—			—		(62		)	200
Total operating expenses	23,386		3,585		11,275		(66		)	69		(11,333		)	26,916
Income from operations	760		291		379		71			53		68			1,622
Loss on business held-for-sale	—		—		—		—			—		(790		)	(790		)
Interest expense	—		—		—		—			—		106			106
Income (loss) before income taxes	$	760	$	291	$	379	$	71		$	53	$	(828	)	$	726



	Retail		Group and Specialty		Healthcare Services		Individual Commercial		Other Businesses			Eliminations/ Corporate			Consolidated
	(in millions)
Six months ended June 30, 2017
Revenues - external customers
Premiums:
Individual Medicare Advantage	$	16,658	$	—	$	—	$	—	$	—		$	—		$	16,658
Group Medicare Advantage	2,595		—		—		—		—			—			2,595
Medicare stand-alone PDP	1,866		—		—		—		—			—			1,866
Total Medicare	21,119		—		—		—		—			—			21,119
Fully-insured	236		2,728		—		530		—			—			3,494
Specialty	—		645		—		—		—			—			645
Medicaid and other	1,324		—		—		—		19			—			1,343
Total premiums	22,679		3,373		—		530		19			—			26,601
Services revenue:
Provider	—		—		133		—		—			—			133
ASO and other	4		304		—		—		4			—			312
Pharmacy	—		—		38		—		—			—			38
Total services revenue	4		304		171		—		4			—			483
Total revenues - external customers	22,683		3,677		171		530		23			—			27,084
Intersegment revenues
Services	—		10		8,619		—		—			(8,629		)	—
Products	—		—		3,134		—		—			(3,134		)	—
Total intersegment revenues	—		10		11,753		—		—			(11,763		)	—
Investment income	49		18		16		2		42			85			212
Total revenues	22,732		3,705		11,940		532		65			(11,678		)	27,296
Operating expenses:
Benefits	19,723		2,598		—		242		61			(409		)	22,215
Operating costs	1,917		793		11,357		102		6			(11,169		)	3,006
Merger termination fee and related costs, net	—		—		—		—		—			(947		)	(947		)
Depreciation and amortization	115		42		69		7		—			(49		)	184
Total operating expenses	21,755		3,433		11,426		351		67			(12,574		)	24,458
Income (loss) from operations	977		272		514		181		(2		)	896			2,838
Interest expense	—		—		—		—		—			107			107
Income (loss) before income taxes	$	977	$	272	$	514	$	181	$	(2	)	$	789		$	2,731