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Schedule 2 - Parent Company Financial Statements - Statements of Comprehensive Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Condensed Statement of Income Captions [Line Items] |  |  |
Net Income (Loss) | $ 312.5 | $ (272.3) | $ (286.6)
Reclassification Adjustment for Postretirement Benefit Costs Arising During the Year: |  |  |
Change in Discount Rate on Future Life Policyholder Benefits | 278.0 | (101.7) | 1,380.7
Other Comprehensive Income (Loss) Before Income Taxes | 71.3 | 195.6 | (143.7)
Reclassification Adjustment for Postretirement Benefit Costs Arising During the Year: |  |  |
Change in Discount Rate on Future Life Policyholder Benefits | 58.3 | (21.2) | 289.9
Other Comprehensive Income Tax Expense (Benefit) | 15.0 | 41.5 | (30.4)
Other Comprehensive Income (Loss), Net of Taxes | 56.3 | 154.1 | (113.3)
Total Comprehensive Income (Loss) | 368.8 | (118.2) | (399.9)
Less: Total Comprehensive Loss attributable to Noncontrolling Interest | (5.3) | (0.2) | 0.0
Comprehensive Income (Loss) attributable to Kemper Corporation | 374.1 | (118.0) | (399.9)
Subsidiaries |  |  |
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: |  |  |
Unrecognized Postretirement Benefit Costs Arising During the Year | 0.5 | 0.1 | 1.1
Reclassification Adjustment for Postretirement Benefit Costs Arising During the Year: |  |  |
Amortization of Accumulated Unrecognized Pension Loss | (0.3) | (0.3) | 0.0
Unrecognized Gain (Loss) on Cash Flow Hedges Arising During the Year: | (6.3) | 0.0 | 0.0
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: |  |  |
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: | 1.8 | 1.0 | (2.7)
Unrecognized Postretirement Benefit Costs Arising During the Year: | 0.1 | 0.0 | 0.2
Reclassification Adjustment for Postretirement Benefit Costs Arising During the Year: |  |  |
Subsidiaries | 0.0 | (0.2) | 0.0
Unrecognized Gain (Loss) on Cash Flow Hedges Arising During the Year: | (0.9) | 0.0 | 0.0
Subsidiaries | No Credit Losses |  |  |
Changes in Net Unrealized Gains (Losses) on Investment Securities: |  |  |
Unrealized Holding Gains (Losses) Arising During the Period Before Reclassification Adjustment | (210.5) | 235.0 | (1,535.7)
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: |  |  |
Reclassification Adjustment for Amounts Included in Net Income | 8.8 | 4.5 | (12.8)
Changes in Net Unrealized (Losses) Gains on Investment Securities: |  |  |
Changes in Net Unrealized (Losses) Gains on Investment Securities: | (44.2) | 49.5 | (322.7)
Subsidiaries | Credit Losses |  |  |
Changes in Net Unrealized Gains (Losses) on Investment Securities: |  |  |
Unrealized Holding Gains (Losses) Arising During the Period Before Reclassification Adjustment | (0.6) | (0.5) | 1.9
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: |  |  |
Reclassification Adjustment for Amounts Included in Net Income | (0.7) | 0.0 | 0.0
Changes in Net Unrealized (Losses) Gains on Investment Securities: |  |  |
Changes in Net Unrealized (Losses) Gains on Investment Securities: | (0.3) | (0.2) | 0.4
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: |  |  |
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: | (0.3) | 0.0 | 0.0
Parent Company |  |  |
Condensed Statement of Income Captions [Line Items] |  |  |
Net Income (Loss) | 317.8 | (272.3) | (286.6)
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: |  |  |
Unrecognized Postretirement Benefit Costs Arising During the Year | 1.3 | (7.4) | 18.2
Reclassification Adjustment for Postretirement Benefit Costs Arising During the Year: |  |  |
Amortization of Accumulated Unrecognized Pension Loss | (2.8) | 66.8 | (0.4)
Reclassification Adjustment for Gain (Loss) on Cash Flow Hedges Arising During the Year: | (0.9) | 0.2 | (5.9)
Other Comprehensive Income (Loss) Before Income Taxes | 71.3 | 195.6 | (143.7)
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: |  |  |
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: | 0.5 | (0.1) | 0.0
Unrecognized Postretirement Benefit Costs Arising During the Year: | 0.3 | (1.3) | 3.9
Reclassification Adjustment for Postretirement Benefit Costs Arising During the Year: |  |  |
Subsidiaries | (0.6) | 14.0 | (0.1)
Parent | 0.2 | 0.1 | 1.2
Other Comprehensive Income Tax Expense (Benefit) | 15.0 | 41.5 | (30.4)
Other Comprehensive Income (Loss), Net of Taxes | 56.3 | 154.1 | (113.3)
Total Comprehensive Income (Loss) | 374.1 | (118.2) | (399.9)
Less: Total Comprehensive Loss attributable to Noncontrolling Interest | 0.0 | (0.2) | 0.0
Comprehensive Income (Loss) attributable to Kemper Corporation | 374.1 | (118.0) | (399.9)
Parent Company | No Credit Losses |  |  |
Changes in Net Unrealized Gains (Losses) on Investment Securities: |  |  |
Unrealized Holding Gains (Losses) Arising During the Period Before Reclassification Adjustment | 0.6 | (0.6) | (2.6)
Reclassification Adjustment for Securities Having No Credit Losses Included in Net Loss: |  |  |
Reclassification Adjustment for Amounts Included in Net Income | 2.4 | (0.1) | 0.0
Changes in Net Unrealized (Losses) Gains on Investment Securities: |  |  |
Changes in Net Unrealized (Losses) Gains on Investment Securities: | $ 0.1 | $ (0.1) | $ (0.5)

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