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Schedule 2 - Parent Company Financial Statements - Balance Sheets (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Mar. 10, 2022 | Feb. 15, 2022 | Dec. 31, 2021
--- | --- | --- | --- | --- | --- | ---
ASSETS |  |  |  |  |  |
Fixed Maturities at Fair Value (Amortized Cost: 2024 – $0.5; 2023 - $177.4) | $ 6,409.6 | $ 6,881.9 |  |  |  |
Equity Securities at Fair Value (Cost: 2024 - $12.8; 2023 - $11.6) | 218.5 | 225.8 |  |  |  |
Other Investments | 199.5 | 241.9 |  |  |  |
Cash | 64.4 | 64.1 |  |  |  |
Other Receivables | 185.7 | 200.5 |  |  |  |
Current Income Taxes | 63.4 | 64.5 |  |  |  |
Right-of-Use Assets | 33.9 | 38.4 |  |  |  |
Other Assets | 436.1 | 492.6 |  |  |  |
Total Assets | 12,630.4 | 12,742.7 | $ 13,313.6 |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |
Long-Term Debt | 1,391.6 | 1,389.2 |  |  |  |
Long-term Debt | 1,278.4 | 1,213.4 |  |  |  |
Deferred Income Tax Liabilities | 14.8 | 50.6 |  |  |  |
Present Value of Minimum Lease Payments | 51.6 | 62.3 |  |  |  |
Accrued Expenses and Other Liabilities | 705.2 | 737.7 |  |  |  |
Total Liabilities | 9,846.1 | 10,237.7 |  |  |  |
Shareholders’ Equity: |  |  |  |  |  |
Common Stock | 6.4 | 6.4 |  |  |  |
Additional Paid-in Capital | 1,854.9 | 1,845.3 |  |  |  |
Retained Earnings | 1,231.6 | 1,014.3 |  |  |  |
Accumulated Other Comprehensive Loss | (304.5) | (360.8) |  |  |  |
Total Shareholders’ Equity | 2,788.4 | 2,505.2 |  |  |  | $ (849.7)
Noncontrolling Interest | (4.1) | (0.2) |  |  |  |
Total Shareholders’ Equity | 2,784.3 | 2,505.0 | 2,670.6 |  |  | 3,129.7
Total Liabilities and Shareholders’ Equity | 12,630.4 | 12,742.7 |  |  |  |
Senior Notes, 3.800 Percent Due February 23, 2032 |  |  |  |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |
Long-Term Debt |  |  |  |  | $ 395.1 |
5.875% Fixed-Rate Reset Junior Subordinated Debentures due 2062 |  |  |  |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |
Long-Term Debt |  |  |  | $ 144.7 |  |
Parent Company |  |  |  |  |  |
ASSETS |  |  |  |  |  |
Investments in Subsidiaries | 3,773.8 | 3,594.1 |  |  |  |
Fixed Maturities at Fair Value (Amortized Cost: 2024 – $0.5; 2023 - $177.4) | 0.5 | 174.3 |  |  |  |
Equity Securities at Fair Value (Cost: 2024 - $12.8; 2023 - $11.6) | 10.9 | 9.9 |  |  |  |
Short-term Investments | 453.8 | 180.2 |  |  |  |
Other Investments | 22.2 | 18.8 |  |  |  |
Cash | 2.3 | 1.5 | $ 66.3 |  |  | $ 27.7
Other Receivables | 60.9 | 38.5 |  |  |  |
Current Income Taxes | 54.3 | 33.9 |  |  |  |
Right-of-Use Assets | 7.2 | 7.7 |  |  |  |
Other Assets | 13.1 | 32.5 |  |  |  |
Total Assets | 4,399.0 | 4,091.4 |  |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |
Deferred Income Tax Liabilities | 137.0 | 119.5 |  |  |  |
Liabilities for Benefit Plans | 32.1 | 28.1 |  |  |  |
Present Value of Minimum Lease Payments | 21.3 | 23.3 |  |  |  |
Accrued Expenses and Other Liabilities | 28.6 | 26.3 |  |  |  |
Total Liabilities | 1,610.6 | 1,586.4 |  |  |  |
Shareholders’ Equity: |  |  |  |  |  |
Common Stock | 6.4 | 6.4 |  |  |  |
Additional Paid-in Capital | 1,854.9 | 1,845.3 |  |  |  |
Retained Earnings | 1,231.6 | 1,014.3 |  |  |  |
Accumulated Other Comprehensive Loss | (304.5) | (360.8) |  |  |  |
Total Shareholders’ Equity | 2,788.4 | 2,505.2 |  |  |  |
Noncontrolling Interest | 0.0 | (0.2) |  |  |  |
Total Shareholders’ Equity | 2,788.4 | 2,505.0 |  |  |  |
Total Liabilities and Shareholders’ Equity | 4,399.0 | 4,091.4 |  |  |  |
Parent Company | Senior Notes, 4.35 Percent Due February 15, 2025 |  |  |  |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |
Long-Term Debt | 449.9 | 449.6 |  |  |  |
Parent Company | Senior Notes, 2.400 Percent Due September 30, 2030 |  |  |  |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |
Long-Term Debt | 397.5 | 397.0 |  |  |  |
Parent Company | Senior Notes, 3.800 Percent Due February 23, 2032 |  |  |  |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |
Long-Term Debt | 396.5 | 396.0 |  |  |  |
Parent Company | 5.875% Fixed-Rate Reset Junior Subordinated Debentures due 2062 |  |  |  |  |  |
LIABILITIES AND SHAREHOLDERS’ EQUITY |  |  |  |  |  |
Long-Term Debt | $ 147.7 | $ 146.6 |  |  |  |

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