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v3.24.2

Premium Income by Major Line of Business within Each Segment (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Segment Reporting Information |  |  |  |
Premium Income | $ 2,627.2 | $ 2,509.1 | $ 5,237.5 | $ 4,968.4
Operating Segments |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 2,627.2 | 2,509.1 | 5,237.5 | 4,968.4
Operating Segments | Unum US |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 1,730.9 | 1,641.4 | 3,438.3 | 3,251.0
Operating Segments | Unum US | Group Long-term Disability |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 521.5 | 516.1 | 1,038.2 | 1,020.8
Operating Segments | Unum US | Group Short-term Disability |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 276.3 | 256.2 | 539.4 | 496.5
Operating Segments | Unum US | Group Life |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 447.5 | 418.2 | 890.1 | 831.3
Operating Segments | Unum US | Accidental Death & Dismemberment |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 46.4 | 43.6 | 92.2 | 87.1
Operating Segments | Unum US | Voluntary Benefits |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 222.9 | 213.4 | 445.8 | 427.9
Operating Segments | Unum US | Individual Disability |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 142.2 | 125.8 | 284.2 | 250.0
Operating Segments | Unum US | Dental and Vision |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 74.1 | 68.1 | 148.4 | 137.4
Operating Segments | Unum International |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 228.8 | 207.9 | 460.5 | 396.5
Operating Segments | Unum International | Group Long-term Disability |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 102.3 | 104.7 | 205.8 | 196.4
Operating Segments | Unum International | Group Life |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 48.8 | 41.1 | 97.5 | 80.3
Operating Segments | Unum International | Supplemental |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 40.6 | 33.5 | 83.7 | 65.3
Operating Segments | Unum International | Unum Poland |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 37.1 | 28.6 | 73.5 | 54.5
Operating Segments | Colonial Life |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 446.2 | 430.6 | 893.1 | 860.1
Operating Segments | Colonial Life | Accident, Sickness, and Disability |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 241.7 | 235.6 | 484.9 | 471.3
Operating Segments | Colonial Life | Life |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 115.2 | 106.6 | 229.5 | 211.9
Operating Segments | Colonial Life | Cancer and Critical Illness Colonial |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 89.3 | 88.4 | 178.7 | 176.9
Operating Segments | Closed Block |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 221.3 | 229.2 | 445.6 | 460.8
Operating Segments | Closed Block | Long-term Care |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 173.3 | 174.0 | 347.8 | 349.1
Operating Segments | Closed Block | Other Insurance Product Line |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | $ 48.0 | $ 55.2 | $ 97.8 | $ 111.7

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