SEGMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2022

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, By Segment

	Insurance		CenterWell		Eliminations/ Corporate		Consolidated
	(in millions)
2022
External revenues
Premiums:
Individual Medicare Advantage	$	65,591	$	—	$	—	$	65,591
Group Medicare Advantage	7,297		—		—		7,297
Medicare stand-alone PDP	2,269		—		—		2,269
Total Medicare	75,157		—		—		75,157
Fully-insured	4,476		—		—		4,476
Specialty	1,703		—		—		1,703
Medicaid and other	6,376		—		—		6,376
Total premiums	87,712		—		—		87,712
Services revenue:
Home solutions	—		2,333		—		2,333
Provider	—		568		—		568
ASO and other	850		—		—		850
Pharmacy	—		1,025		—		1,025
Total services revenue	850		3,926		—		4,776
Total external revenues	88,562		3,926		—		92,488
Intersegment revenues
Services	56		3,532		(3,588)		—
Products	—		9,841		(9,841)		—
Intersegment revenues	56		13,373		(13,429)		—
Investment income	223		8		151		382
Total revenues	88,841		17,307		(13,278)		92,870
Operating expenses:
Benefits	75,934		—		(244)		75,690
Operating costs	9,251		15,835		(12,415)		12,671
Depreciation and amortization	634		181		(106)		709
Total operating expenses	85,819		16,016		(12,765)		89,070
Income (loss) from operations	3,022		1,291		(513)		3,800
Gain on sale of KAH Hospice	—		(237)		—		(237)
Interest expense	—		—		401		401
Other income, net	—		—		68		68
Income before income taxes and equity in net earnings (losses)	3,022		1,528		(982)		3,568
Equity in net earnings (losses)	18		(22)		—		(4)
Segment earnings	$	3,040	$	1,506	$	(982)	$	3,564
Net (income) loss attributable to noncontrolling interests	5		(1)		—		4
Segment earnings (loss) attributable to Humana	$	3,045	$	1,505	$	(982)	$	3,568

	Insurance		CenterWell		Eliminations/ Corporate		Consolidated
	(in millions)
2021
External revenues
Premiums:
Individual Medicare Advantage	$	58,654	$	—	$	—	$	58,654
Group Medicare Advantage	6,955		—		—		6,955
Medicare stand-alone PDP	2,371		—		—		2,371
Total Medicare	67,980		—		—		67,980
Fully-insured	5,002		—		—		5,002
Specialty	1,731		—		—		1,731
Medicaid and other	5,109		—		—		5,109
Total premiums	79,822		—		—		79,822
Services revenue:
Home solutions	—		1,166		—		1,166
Provider	—		413		—		413
ASO and other	853		—		—		853
Pharmacy	—		623		—		623
Total services revenue	853		2,202		—		3,055
Total external revenues	80,675		2,202		—		82,877
Intersegment revenues
Services	41		2,828		(2,869)		—
Products	—		9,024		(9,024)		—
Intersegment revenues	41		11,852		(11,893)		—
Investment income (loss)	214		4		(31)		187
Total revenues	80,930		14,058		(11,924)		83,064
Operating expenses:
Benefits	69,639		—		(440)		69,199
Operating costs	8,340		12,968		(11,187)		10,121
Depreciation and amortization	539		152		(95)		596
Total operating expenses	78,518		13,120		(11,722)		79,916
Income (loss) from operations	2,412		938		(202)		3,148
Interest expense	—		—		326		326
Other income, net	—		—		(532)		(532)
Income before income taxes and equity in net earnings	2,412		938		4		3,354
Equity in net earnings	—		65		—		65
Segment earnings	$	2,412	$	1,003	$	4	$	3,419
Net (income) loss attributable to noncontrolling interests	—		(1)		—		(1)
Segment earnings attributable to Humana	$	2,412	$	1,002	$	4	$	3,418

	Insurance		CenterWell		Eliminations/ Corporate		Consolidated
	(in millions)
2020
External revenues
Premiums:
Individual Medicare Advantage	$	51,697	$	—	$	—	$	51,697
Group Medicare Advantage	7,774		—		—		7,774
Medicare stand-alone PDP	2,742		—		—		2,742
Total Medicare	62,213		—		—		62,213
Fully-insured	5,449		—		602		6,051
Specialty	1,699		—		—		1,699
Medicaid and other	4,223		—		—		4,223
Total premiums	73,584		—		602		74,186
Services revenue:
Home solutions	—		107		—		107
Provider	—		328		—		328
ASO and other	813		—		—		813
Pharmacy	—		567		—		567
Total services revenue	813		1,002		—		1,815
Total external revenues	74,397		1,002		602		76,001
Intersegment revenues
Services	29		2,547		(2,576)		—
Products	—		7,928		(7,928)		—
Intersegment revenues	29		10,475		(10,504)		—
Investment income	171		13		970		1,154
Total revenues	74,597		11,490		(8,932)		77,155
Operating expenses:
Benefits	61,909		—		(281)		61,628
Operating costs	9,129		10,706		(9,783)		10,052
Depreciation and amortization	439		160		(110)		489
Total operating expenses	71,477		10,866		(10,174)		72,169
Income from operations	3,120		624		1,242		4,986
Interest expense	—		—		283		283
Other expense, net	—		—		103		103
Income before income taxes and equity in net earnings	3,120		624		856		4,600
Equity in net earnings	—		74		—		74
Segment earnings	$	3,120	$	698	$	856	$	4,674