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v3.24.0.1

Nature of Operations and Significant Accounting Policies - Balances and changes in LFPB for Benefits and Protection and Corporate (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Present value of expected future policy benefit payments |  |  |  |
Future policy benefits | $ 36,514.6 | $ 34,064.4 |  | $ 43,489.8
Benefits and Protection |  |  |  |
Present value of expected future policy benefit payments |  |  |  |
Future policy benefits | 2,984.3 | 2,607.8 |  | 3,661.2
Benefits and Protection | Specialty Benefits | Individual disability |  |  |  |
Present value of expected net premiums |  |  |  |
Balance at beginning of period, Present value of expected net premiums |  | 3,149.9 | $ 3,148.3 |
Effect of changes in discount rate assumptions at beginning of period | 395.2 | (198.9) | 340.7 |
Balance at beginning of period at original discount rate | 2,737.0 | 2,951.0 | 2,807.6 |
Effect of changes in cash flow assumptions | (37.6) | (413.1) |  |
Effect of actual variances from expected experience | 244.3 | 235.9 | 122.0 |
Adjusted beginning of period balance at original discount rate | 2,943.7 | 2,773.8 | (2,929.6) |
Interest accrual | 95.6 | 95.2 | 95.4 |
Net premiums collected | (273.4) | (276.5) | (280.4) |
Issuances | 100.1 | 144.5 | 206.4 |
Balance at end of period at original discount rate | 2,866.0 | 2,737.0 | 2,951.0 |
Effect of changes in discount rate assumptions at end of period | (313.7) | (395.2) | 198.9 |
Balance at end of period, Present value of expected net premiums |  |  | 3,149.9 |
Present value of expected future policy benefit payments |  |  |  |
Balance at beginning of period, Present value of expected future policy benefit payments | 4,040.6 | 5,648.3 | 5,649.2 |
Effect of changes in discount rate assumptions at beginning of period | 1,021.4 | (501.0) | (834.1) |
Balance at beginning of period at original discount rate | 5,062.0 | 5,147.3 | 4,815.1 |
Effect of changes in cash flow assumptions | (51.5) | (476.3) |  |
Effect of actual variances from expected experience | 260.8 | 240.0 | 118.8 |
Adjusted beginning of period balance at original discount rate | 5,271.3 | 4,911.0 | 4,933.9 |
Interest accrual | 190.1 | 185.4 | 181.0 |
Benefit payments | (210.0) | (183.7) | (179.7) |
Issuances | 102.8 | 149.3 | 212.1 |
Balance at end of period at original discount rate | 5,354.2 | 5,062.0 | 5,147.3 |
Effect of changes in discount rate assumptions at end of period | (903.5) | (1,021.4) | 501.0 |
Balance at end of period, Present value of expected future policy benefit payments | 4,450.7 | 4,040.6 | 5,648.3 |
Future policy benefits | 1,898.4 | 1,698.8 | 2,498.4 | 2,500.9
Reinsurance Impact | (421.6) | (386.8) | (549.9) |
Future policy benefits after reinsurance | 1,476.8 | 1,312.0 | 1,948.5 |
Benefits and Protection | Life Insurance | Term life |  |  |  |
Present value of expected net premiums |  |  |  |
Balance at beginning of period, Present value of expected net premiums |  | 4,193.7 | 3,799.0 |
Effect of changes in discount rate assumptions at beginning of period | 196.0 | (690.1) | 861.1 |
Balance at beginning of period at original discount rate | 3,619.2 | 3,503.6 | 2,937.9 |
Effect of changes in cash flow assumptions | 143.5 |  |  |
Effect of actual variances from expected experience | 103.3 | 128.6 | 211.4 |
Adjusted beginning of period balance at original discount rate | 3,866.0 | 3,632.2 | (3,149.3) |
Interest accrual | 171.9 | 162.9 | 151.1 |
Net premiums collected | (359.8) | (346.6) | (315.0) |
Issuances | 215.7 | 170.7 | 518.2 |
Balance at end of period at original discount rate | 3,893.8 | 3,619.2 | 3,503.6 |
Effect of changes in discount rate assumptions at end of period | (100.1) | (196.0) | 690.1 |
Balance at end of period, Present value of expected net premiums |  |  | 4,193.7 |
Present value of expected future policy benefit payments |  |  |  |
Balance at beginning of period, Present value of expected future policy benefit payments | 4,332.2 | 5,311.3 | 4,959.3 |
Effect of changes in discount rate assumptions at beginning of period | 251.6 | (913.9) | (1,179.9) |
Balance at beginning of period at original discount rate | 4,583.8 | 4,397.4 | 3,779.4 |
Effect of changes in cash flow assumptions | 181.8 |  |  |
Effect of actual variances from expected experience | 116.8 | 139.0 | 216.0 |
Adjusted beginning of period balance at original discount rate | 4,882.4 | 4,536.4 | 3,995.4 |
Interest accrual | 220.1 | 206.8 | 194.3 |
Benefit payments | (330.4) | (340.6) | (335.7) |
Issuances | 232.0 | 181.2 | 543.4 |
Balance at end of period at original discount rate | 5,004.1 | 4,583.8 | 4,397.4 |
Effect of changes in discount rate assumptions at end of period | (124.5) | (251.6) | 913.9 |
Balance at end of period, Present value of expected future policy benefit payments | 4,879.6 | 4,332.2 | 5,311.3 |
Future policy benefits | 1,085.9 | 909.0 | 1,117.6 | 1,160.3
Reinsurance Impact | 45.2 | 25.6 | (0.1) |
Future policy benefits after reinsurance | 1,131.1 | 934.6 | 1,117.5 |
Corporate | Long-term care insurance |  |  |  |
Present value of expected net premiums |  |  |  |
Balance at beginning of period, Present value of expected net premiums |  | 62.8 | 66.7 |
Effect of changes in discount rate assumptions at beginning of period | (3.6) | (14.0) | 17.6 |
Balance at beginning of period at original discount rate | 61.0 | 48.8 | 49.1 |
Effect of changes in cash flow assumptions | (13.3) | 10.0 | 2.8 |
Effect of actual variances from expected experience | (5.7) | 4.1 | (0.8) |
Adjusted beginning of period balance at original discount rate | 42.0 | 62.9 | (51.1) |
Interest accrual | 2.9 | 3.3 | 2.9 |
Net premiums collected | (5.1) | (5.2) | (5.2) |
Balance at end of period at original discount rate | 39.8 | 61.0 | 48.8 |
Effect of changes in discount rate assumptions at end of period | 3.0 | 3.6 | 14.0 |
Balance at end of period, Present value of expected net premiums |  |  | 62.8 |
Present value of expected future policy benefit payments |  |  |  |
Balance at beginning of period, Present value of expected future policy benefit payments | 248.1 | 297.5 | 324.3 |
Effect of changes in discount rate assumptions at beginning of period | (18.9) | (89.5) | (111.1) |
Balance at beginning of period at original discount rate | 229.2 | 208.0 | 213.2 |
Effect of changes in cash flow assumptions | (40.5) | 17.2 | 0.5 |
Effect of actual variances from expected experience | 2.5 | 3.7 | (4.6) |
Adjusted beginning of period balance at original discount rate | 191.2 | 228.9 | 209.1 |
Interest accrual | 12.5 | 13.1 | 12.4 |
Benefit payments | (14.2) | (12.8) | (13.5) |
Balance at end of period at original discount rate | 189.5 | 229.2 | 208.0 |
Effect of changes in discount rate assumptions at end of period | 20.0 | 18.9 | 89.5 |
Balance at end of period, Present value of expected future policy benefit payments | 209.5 | 248.1 | 297.5 |
Future policy benefits | 166.7 | 183.5 | 234.7 | $ 257.6
Reinsurance Impact | $ (166.7) | $ (183.5) | $ (234.7) |

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