v3.24.1.u1
SEGMENT INFORMATION - Segment Results (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Segment Reporting Information [Line Items]    
Premiums $ 28,261 $ 25,550
Services revenue 1,062 999
Total revenues 29,611 26,742
Investment income 288 193
Benefits 25,124 21,858
Operating costs 3,042 2,979
Depreciation and amortization 209 186
Total operating expenses 28,375 25,023
Income from operations 1,236 1,719
Interest expense 159 113
Other expense (income), net 63 (8)
Income (loss) before income taxes and equity in net losses 1,014 1,614
Equity in net losses (24) (17)
Segment earnings (loss) 990 1,597
Net loss (income) attributable to noncontrolling interests 2 1
Segment earnings (loss) attributable to Humana 992 1,598
Products    
Segment Reporting Information [Line Items]    
Premiums 28,261 25,550
Products | Total Medicare    
Segment Reporting Information [Line Items]    
Premiums 25,258 22,190
Products | Individual Medicare Advantage    
Segment Reporting Information [Line Items]    
Premiums 22,448 19,809
Products | Group Medicare Advantage    
Segment Reporting Information [Line Items]    
Premiums 1,989 1,765
Products | Medicare stand-alone PDP    
Segment Reporting Information [Line Items]    
Premiums 821 616
Products | Commercial fully-insured    
Segment Reporting Information [Line Items]    
Premiums 256 1,018
Products | Specialty benefits    
Segment Reporting Information [Line Items]    
Premiums 239 254
Products | Medicare Supplement    
Segment Reporting Information [Line Items]    
Premiums 197 179
Products | State-based contracts and other    
Segment Reporting Information [Line Items]    
Premiums 2,311 1,909
Services    
Segment Reporting Information [Line Items]    
Services revenue 1,062 999
Services | Home solutions    
Segment Reporting Information [Line Items]    
Services revenue 335 314
Services | Primary care    
Segment Reporting Information [Line Items]    
Services revenue 241 201
Services | Commercial ASO    
Segment Reporting Information [Line Items]    
Services revenue 24 71
Services | Military services and other    
Segment Reporting Information [Line Items]    
Services revenue 251 171
Services | Pharmacy solutions    
Segment Reporting Information [Line Items]    
Services revenue 211 242
Total external revenues    
Segment Reporting Information [Line Items]    
Total revenues 29,323 26,549
Operating segments | Insurance    
Segment Reporting Information [Line Items]    
Total revenues 28,699 25,903
Investment income 162 97
Benefits 25,251 21,993
Operating costs 2,364 2,418
Depreciation and amortization 186 165
Total operating expenses 27,801 24,576
Income from operations 898 1,327
Interest expense 0 0
Other expense (income), net 0 0
Income (loss) before income taxes and equity in net losses 898 1,327
Equity in net losses (2) (3)
Segment earnings (loss) 896 1,324
Net loss (income) attributable to noncontrolling interests 2 1
Segment earnings (loss) attributable to Humana 898 1,325
Operating segments | Insurance | Products    
Segment Reporting Information [Line Items]    
Premiums 28,261 25,550
Operating segments | Insurance | Products | Total Medicare    
Segment Reporting Information [Line Items]    
Premiums 25,258 22,190
Operating segments | Insurance | Products | Individual Medicare Advantage    
Segment Reporting Information [Line Items]    
Premiums 22,448 19,809
Operating segments | Insurance | Products | Group Medicare Advantage    
Segment Reporting Information [Line Items]    
Premiums 1,989 1,765
Operating segments | Insurance | Products | Medicare stand-alone PDP    
Segment Reporting Information [Line Items]    
Premiums 821 616
Operating segments | Insurance | Products | Commercial fully-insured    
Segment Reporting Information [Line Items]    
Premiums 256 1,018
Operating segments | Insurance | Products | Specialty benefits    
Segment Reporting Information [Line Items]    
Premiums 239 254
Operating segments | Insurance | Products | Medicare Supplement    
Segment Reporting Information [Line Items]    
Premiums 197 179
Operating segments | Insurance | Products | State-based contracts and other    
Segment Reporting Information [Line Items]    
Premiums 2,311 1,909
Operating segments | Insurance | Services    
Segment Reporting Information [Line Items]    
Services revenue 275 242
Operating segments | Insurance | Services | Home solutions    
Segment Reporting Information [Line Items]    
Services revenue 0 0
Operating segments | Insurance | Services | Primary care    
Segment Reporting Information [Line Items]    
Services revenue 0 0
Operating segments | Insurance | Services | Commercial ASO    
Segment Reporting Information [Line Items]    
Services revenue 24 71
Operating segments | Insurance | Services | Military services and other    
Segment Reporting Information [Line Items]    
Services revenue 251 171
Operating segments | Insurance | Services | Pharmacy solutions    
Segment Reporting Information [Line Items]    
Services revenue 0 0
Operating segments | Insurance | Total external revenues    
Segment Reporting Information [Line Items]    
Total revenues 28,536 25,792
Operating segments | CenterWell    
Segment Reporting Information [Line Items]    
Total revenues 4,818 4,505
Investment income 0 0
Benefits 0 0
Operating costs 4,483 4,126
Depreciation and amortization 53 49
Total operating expenses 4,536 4,175
Income from operations 282 330
Interest expense 1 0
Other expense (income), net 0 0
Income (loss) before income taxes and equity in net losses 281 330
Equity in net losses (22) (14)
Segment earnings (loss) 259 316
Net loss (income) attributable to noncontrolling interests 0 0
Segment earnings (loss) attributable to Humana 259 316
Operating segments | CenterWell | Products    
Segment Reporting Information [Line Items]    
Premiums 0 0
Operating segments | CenterWell | Products | Total Medicare    
Segment Reporting Information [Line Items]    
Premiums 0 0
Operating segments | CenterWell | Products | Individual Medicare Advantage    
Segment Reporting Information [Line Items]    
Premiums 0 0
Operating segments | CenterWell | Products | Group Medicare Advantage    
Segment Reporting Information [Line Items]    
Premiums 0 0
Operating segments | CenterWell | Products | Medicare stand-alone PDP    
Segment Reporting Information [Line Items]    
Premiums 0 0
Operating segments | CenterWell | Products | Commercial fully-insured    
Segment Reporting Information [Line Items]    
Premiums 0 0
Operating segments | CenterWell | Products | Specialty benefits    
Segment Reporting Information [Line Items]    
Premiums 0 0
Operating segments | CenterWell | Products | Medicare Supplement    
Segment Reporting Information [Line Items]    
Premiums 0 0
Operating segments | CenterWell | Products | State-based contracts and other    
Segment Reporting Information [Line Items]    
Premiums 0 0
Operating segments | CenterWell | Services    
Segment Reporting Information [Line Items]    
Services revenue 787 757
Operating segments | CenterWell | Services | Home solutions    
Segment Reporting Information [Line Items]    
Services revenue 335 314
Operating segments | CenterWell | Services | Primary care    
Segment Reporting Information [Line Items]    
Services revenue 241 201
Operating segments | CenterWell | Services | Commercial ASO    
Segment Reporting Information [Line Items]    
Services revenue 0 0
Operating segments | CenterWell | Services | Military services and other    
Segment Reporting Information [Line Items]    
Services revenue 0 0
Operating segments | CenterWell | Services | Pharmacy solutions    
Segment Reporting Information [Line Items]    
Services revenue 211 242
Operating segments | CenterWell | Total external revenues    
Segment Reporting Information [Line Items]    
Total revenues 787 757
Eliminations/ Corporate    
Segment Reporting Information [Line Items]    
Total revenues (3,906) (3,666)
Investment income 126 96
Benefits (127) (135)
Operating costs (3,805) (3,565)
Depreciation and amortization (30) (28)
Total operating expenses (3,962) (3,728)
Income from operations 56 62
Interest expense 158 113
Other expense (income), net 63 (8)
Income (loss) before income taxes and equity in net losses (165) (43)
Equity in net losses 0 0
Segment earnings (loss) (165) (43)
Net loss (income) attributable to noncontrolling interests 0 0
Segment earnings (loss) attributable to Humana (165) (43)
Eliminations/ Corporate | Insurance    
Segment Reporting Information [Line Items]    
Total revenues 1 14
Eliminations/ Corporate | Insurance | Products    
Segment Reporting Information [Line Items]    
Total revenues 0 0
Eliminations/ Corporate | Insurance | Services    
Segment Reporting Information [Line Items]    
Total revenues 1 14
Eliminations/ Corporate | CenterWell    
Segment Reporting Information [Line Items]    
Total revenues 4,031 3,748
Eliminations/ Corporate | CenterWell | Products    
Segment Reporting Information [Line Items]    
Total revenues 2,617 2,615
Eliminations/ Corporate | CenterWell | Services    
Segment Reporting Information [Line Items]    
Total revenues 1,414 1,133
Intersegment Eliminations    
Segment Reporting Information [Line Items]    
Total revenues (4,032) (3,762)
Intersegment Eliminations | Products    
Segment Reporting Information [Line Items]    
Total revenues (2,617) (2,615)
Intersegment Eliminations | Services    
Segment Reporting Information [Line Items]    
Total revenues $ (1,415) $ (1,147)