NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - Continued Unum Group and Subsidiaries Note 13 - Segment Information - Continued for the periods subsequent to the respective dates of acquisition, did not have a material impact on revenue or results of operations for 2018. Segment information is as follows: Certain prior year amounts were reclassified to conform to current year presentation. Year Ended December 31 2019 2018 2017 (in millions of dollars) Premium Income Unum US Group Disability Group Long-term Disability $ 1,823.1  $ 1,766.2  $ 1,749.6  Group Short-term Disability 768.8  706.3  639.8  Group Life and Accidental Death & Dismemberment Group Life 1,662.0  1,583.7  1,467.5  Accidental Death & Dismemberment 165.7  156.3  147.5  Supplemental and Voluntary Individual Disability 440.7  425.4  420.2  Voluntary Benefits 910.2  895.7  849.4  Dental and Vision 246.1  202.8  169.5  6,016.6  5,736.4  5,443.5  Unum International Unum UK Group Long-term Disability 353.4  358.9  340.3  Group Life 115.7  110.8  103.1  Supplemental 89.5  81.7  69.6  Unum Poland 71.9  17.4  —  630.5  568.8  513.0  Colonial Life Accident, Sickness, and Disability 973.4  929.3  884.2  Life 351.6  328.4  300.4  Cancer and Critical Illness 360.0  346.1  326.8  1,685.0  1,603.8  1,511.4  Closed Block Long-term Care 651.6  648.3  648.7  Individual Disability 374.3  420.8  471.8  All Other 7.6  8.0  8.7  1,033.5  1,077.1  1,129.2  Total Premium Income $ 9,365.6  $ 8,986.1  $ 8,597.1  184