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v3.23.2

Premium Income by Major Line of Business within Each Segment (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Segment Reporting Information |  |  |  |
Premium Income | $ 2,509.1 | $ 2,416.0 | $ 4,968.4 | $ 4,817.4
Operating Segments |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 2,509.1 | 2,416.0 | 4,968.4 | 4,817.4
Operating Segments | Unum US |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 1,641.4 | 1,571.0 | 3,251.0 | 3,114.0
Operating Segments | Unum US | Group Long-term Disability |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 516.1 | 474.4 | 1,020.8 | 938.3
Operating Segments | Unum US | Group Short-term Disability |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 256.2 | 232.1 | 496.5 | 453.7
Operating Segments | Unum US | Group Life |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 418.2 | 419.6 | 831.3 | 832.2
Operating Segments | Unum US | Accidental Death & Dismemberment |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 43.6 | 43.8 | 87.1 | 85.9
Operating Segments | Unum US | Voluntary Benefits |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 213.4 | 214.4 | 427.9 | 433.0
Operating Segments | Unum US | Individual Disability |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 125.8 | 117.8 | 250.0 | 231.4
Operating Segments | Unum US | Dental and Vision |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 68.1 | 68.9 | 137.4 | 139.5
Operating Segments | Unum International |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 207.9 | 179.4 | 396.5 | 367.2
Operating Segments | Unum International | Group Long-term Disability |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 104.7 | 94.3 | 196.4 | 197.7
Operating Segments | Unum International | Group Life |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 41.1 | 33.3 | 80.3 | 65.5
Operating Segments | Unum International | Supplemental |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 33.5 | 29.4 | 65.3 | 58.4
Operating Segments | Unum International | Unum Poland |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 28.6 | 22.4 | 54.5 | 45.6
Operating Segments | Colonial Life |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 430.6 | 427.6 | 860.1 | 858.3
Operating Segments | Colonial Life | Accident, Sickness, and Disability |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 235.6 | 238.2 | 471.3 | 477.9
Operating Segments | Colonial Life | Life |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 106.6 | 101.3 | 211.9 | 203.0
Operating Segments | Colonial Life | Cancer and Critical Illness Colonial |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 88.4 | 88.1 | 176.9 | 177.4
Operating Segments | Closed Block |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 229.2 | 238.0 | 460.8 | 477.9
Operating Segments | Closed Block | Long-term Care |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 174.0 | 173.7 | 349.1 | 348.5
Operating Segments | Closed Block | Other Insurance Product Line |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | $ 55.2 | $ 64.3 | $ 111.7 | $ 129.4

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