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v3.23.2

Selected Operating Statement Data by 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
Net Investment Income | 531.1 | 559.0 | 1,039.9 | 1,086.2
Other Income | 71.1 | 68.7 | 139.0 | 134.5
Operating Segments |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 2,509.1 | 2,416.0 | 4,968.4 | 4,817.4
Net Investment Income | 531.1 | 559.0 | 1,039.9 | 1,086.2
Other Income | 71.1 | 68.7 | 139.0 | 134.5
Adjusted Operating Revenue | 3,111.3 | 3,043.7 | 6,147.3 | 6,038.1
Adjusted Operating Income (Loss) | 518.4 | 466.6 | 987.9 | 801.9
Operating Segments | Unum US |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 1,641.4 | 1,571.0 | 3,251.0 | 3,114.0
Net Investment Income | 158.0 | 167.8 | 315.3 | 338.8
Other Income | 54.5 | 50.7 | 108.1 | 97.8
Adjusted Operating Revenue | 1,853.9 | 1,789.5 | 3,674.4 | 3,550.6
Adjusted Operating Income (Loss) | 343.1 | 291.9 | 655.6 | 460.2
Operating Segments | Unum International |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 207.9 | 179.4 | 396.5 | 367.2
Net Investment Income | 45.8 | 50.8 | 76.7 | 85.3
Other Income | 0.1 | 0.3 | 0.5 | 0.5
Adjusted Operating Revenue | 253.8 | 230.5 | 473.7 | 453.0
Adjusted Operating Income (Loss) | 43.5 | 28.1 | 81.9 | 54.0
Operating Segments | Colonial Life |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 430.6 | 427.6 | 860.1 | 858.3
Net Investment Income | 38.0 | 38.7 | 75.3 | 76.8
Other Income | 0.4 | 0.2 | 0.6 | 0.5
Adjusted Operating Revenue | 469.0 | 466.5 | 936.0 | 935.6
Adjusted Operating Income (Loss) | 115.5 | 96.6 | 209.4 | 199.5
Operating Segments | Closed Block |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 229.2 | 238.0 | 460.8 | 477.9
Net Investment Income | 263.9 | 291.5 | 521.1 | 566.3
Other Income | 13.8 | 16.5 | 27.3 | 32.5
Adjusted Operating Revenue | 506.9 | 546.0 | 1,009.2 | 1,076.7
Adjusted Operating Income (Loss) | 51.2 | 86.9 | 109.4 | 165.5
Operating Segments | Corporate |  |  |  |
Segment Reporting Information |  |  |  |
Premium Income | 0.0 | 0.0 | 0.0 | 0.0
Net Investment Income | 25.4 | 10.2 | 51.5 | 19.0
Other Income | 2.3 | 1.0 | 2.5 | 3.2
Adjusted Operating Revenue | 27.7 | 11.2 | 54.0 | 22.2
Adjusted Operating Income (Loss) | $ (34.9) | $ (36.9) | $ (68.4) | $ (77.3)

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