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v3.25.3

FAIR VALUE MEASUREMENTS - RECURRING BASIS (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Other invested assets: |  |
Company-owned life insurance | $ 220.3 | $ 212.6
Cash and cash equivalents: |  |
Held by variable interest entities | 23.3 | 341.0
Total assets | 38,296.2 | 37,849.3
Liabilities, Fair Value Disclosure [Abstract] |  |
Total liabilities | 35,685.2 | 35,334.1
Key Employee |  |
Other invested assets: |  |
Company-owned life insurance | 193.3 | 189.5
Fair Value, Measurements, Recurring | Total estimated fair value |  |
Assets: |  |
Mortgage loans | 2,943.1 | 2,376.0
Policy loans | 141.2 | 135.3
Other invested assets: |  |
Company-owned life insurance | 413.6 | 402.1
Cash and cash equivalents: |  |
Unrestricted | 1,218.3 | 1,656.7
Held by variable interest entities | 23.3 | 341.0
Total assets | 4,739.5 | 4,911.1
Liabilities, Fair Value Disclosure [Abstract] |  |
Policyholder account balances (b) | 16,691.9 | 16,122.6
Investment borrowings | 2,443.3 | 2,189.8
Borrowings related to variable interest entities | 277.4 | 499.0
Notes payable – direct corporate obligations | 1,374.0 | 1,837.9
Total liabilities | 20,786.6 | 20,649.3
Fair Value, Measurements, Recurring | Total carrying amount |  |
Assets: |  |
Mortgage loans | 3,042.7 | 2,506.3
Policy loans | 141.2 | 135.3
Other invested assets: |  |
Company-owned life insurance | 413.6 | 402.1
Cash and cash equivalents: |  |
Unrestricted | 1,218.3 | 1,656.7
Held by variable interest entities | 23.3 | 341.0
Total assets | 4,839.1 | 5,041.4
Liabilities, Fair Value Disclosure [Abstract] |  |
Policyholder account balances (b) | 16,691.9 | 16,122.6
Investment borrowings | 2,441.7 | 2,188.8
Borrowings related to variable interest entities | 274.3 | 497.6
Notes payable – direct corporate obligations | 1,335.2 | 1,833.5
Total liabilities | 20,743.1 | 20,642.5
Fair Value, Measurements, Recurring | Quoted prices in active markets for identical assets or liabilities (Level 1) |  |
Assets: |  |
Mortgage loans | 0.0 | 0.0
Policy loans | 0.0 | 0.0
Other invested assets: |  |
Company-owned life insurance | 0.0 | 0.0
Cash and cash equivalents: |  |
Unrestricted | 1,218.3 | 1,656.7
Held by variable interest entities | 23.3 | 341.0
Total assets | 1,241.6 | 1,997.7
Liabilities, Fair Value Disclosure [Abstract] |  |
Policyholder account balances (b) | 0.0 | 0.0
Investment borrowings | 0.0 | 0.0
Borrowings related to variable interest entities | 0.0 | 0.0
Notes payable – direct corporate obligations | 0.0 | 0.0
Total liabilities | 0.0 | 0.0
Fair Value, Measurements, Recurring | Significant other observable inputs (Level 2) |  |
Assets: |  |
Mortgage loans | 0.0 | 0.0
Policy loans | 0.0 | 0.0
Other invested assets: |  |
Company-owned life insurance | 413.6 | 402.1
Cash and cash equivalents: |  |
Unrestricted | 0.0 | 0.0
Held by variable interest entities | 0.0 | 0.0
Total assets | 413.6 | 402.1
Liabilities, Fair Value Disclosure [Abstract] |  |
Policyholder account balances (b) | 0.0 | 0.0
Investment borrowings | 2,443.3 | 2,189.8
Borrowings related to variable interest entities | 277.4 | 499.0
Notes payable – direct corporate obligations | 1,374.0 | 1,837.9
Total liabilities | 4,094.7 | 4,526.7
Fair Value, Measurements, Recurring | Significant unobservable inputs (Level 3) |  |
Assets: |  |
Mortgage loans | 2,943.1 | 2,376.0
Policy loans | 141.2 | 135.3
Other invested assets: |  |
Company-owned life insurance | 0.0 | 0.0
Cash and cash equivalents: |  |
Unrestricted | 0.0 | 0.0
Held by variable interest entities | 0.0 | 0.0
Total assets | 3,084.3 | 2,511.3
Liabilities, Fair Value Disclosure [Abstract] |  |
Policyholder account balances (b) | 16,691.9 | 16,122.6
Investment borrowings | 0.0 | 0.0
Borrowings related to variable interest entities | 0.0 | 0.0
Notes payable – direct corporate obligations | 0.0 | 0.0
Total liabilities | $ 16,691.9 | $ 16,122.6

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