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FAIR VALUE OF FINANCIAL INSTRUMENTS - Significant Unobservable Inputs (Details) $ in Millions | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
--- | --- | ---
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | $ 26,719.9 | [1] | $ 22,873.7 | [2]
Level 3 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 26,091.0 |  | 22,084.0 |
Level 3 | Yield analysis | First lien senior secured loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 14,722.0 |  | 9,584.0 |
Level 3 | Yield analysis | Second lien senior secured loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 1,724.0 |  | 3,536.0 |
Level 3 | Yield analysis | Senior subordinated loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 1,343.0 |  | 1,073.0 |
Level 3 | Yield analysis | Preferred equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 2,649.0 |  | 2,456.0 |
Level 3 | Discounted cash flow analysis | Subordinated certificates of the SDLP |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 1,192.0 |  | 1,288.0 |
Level 3 | Discounted cash flow analysis | Ivy Hill Asset Management, L.P. |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 1,915.0 |  | 1,987.0 |
Level 3 | EV market multiple analysis | Other equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | $ 2,546.0 |  | $ 2,160.0 |
Level 3 | Market yield | Yield analysis | Minimum | First lien senior secured loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.038 |  | 0.064 |
Level 3 | Market yield | Yield analysis | Minimum | Second lien senior secured loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.096 |  | 0.100 |
Level 3 | Market yield | Yield analysis | Minimum | Senior subordinated loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.084 |  | 0.080 |
Level 3 | Market yield | Yield analysis | Minimum | Preferred equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.070 |  | 0.070 |
Level 3 | Market yield | Yield analysis | Maximum | First lien senior secured loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.229 |  | 0.350 |
Level 3 | Market yield | Yield analysis | Maximum | Second lien senior secured loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.232 |  | 0.373 |
Level 3 | Market yield | Yield analysis | Maximum | Senior subordinated loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.219 |  | 0.192 |
Level 3 | Market yield | Yield analysis | Maximum | Preferred equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.190 |  | 0.200 |
Level 3 | Market yield | Yield analysis | Weighted Average | First lien senior secured loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.104 |  | 0.127 |
Level 3 | Market yield | Yield analysis | Weighted Average | Second lien senior secured loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.142 |  | 0.148 |
Level 3 | Market yield | Yield analysis | Weighted Average | Senior subordinated loans |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.128 |  | 0.146 |
Level 3 | Market yield | Yield analysis | Weighted Average | Preferred equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.133 |  | 0.145 |
Level 3 | Discount rate | Discounted cash flow analysis | Minimum | Subordinated certificates of the SDLP |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.100 |  | 0.123 |
Level 3 | Discount rate | Discounted cash flow analysis | Minimum | Ivy Hill Asset Management, L.P. |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.099 |  | 0.116 |
Level 3 | Discount rate | Discounted cash flow analysis | Maximum | Subordinated certificates of the SDLP |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.130 |  | 0.146 |
Level 3 | Discount rate | Discounted cash flow analysis | Maximum | Ivy Hill Asset Management, L.P. |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.190 |  | 0.326 |
Level 3 | Discount rate | Discounted cash flow analysis | Weighted Average | Subordinated certificates of the SDLP |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.120 |  | 0.133 |
Level 3 | Discount rate | Discounted cash flow analysis | Weighted Average | Ivy Hill Asset Management, L.P. |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 0.114 |  | 0.142 |
Level 3 | EBITDA multiple | EV market multiple analysis | Minimum | Preferred equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 2.6 |  | 4.3 |
Level 3 | EBITDA multiple | EV market multiple analysis | Minimum | Other equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 5.6 |  | 5.3 |
Level 3 | EBITDA multiple | EV market multiple analysis | Maximum | Preferred equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 25.1 |  | 32.5 |
Level 3 | EBITDA multiple | EV market multiple analysis | Maximum | Other equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 49.7 |  | 33.8 |
Level 3 | EBITDA multiple | EV market multiple analysis | Weighted Average | Preferred equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 15.4 |  | 15.2 |
Level 3 | EBITDA multiple | EV market multiple analysis | Weighted Average | Other equity |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Unobservable Input | 18.1 |  | 14.8 |
[1] | As of December 31, 2024, the estimated net unrealized gain for federal tax purposes was $0.2 billion based on a tax cost basis of $26.5 billion. As of December 31, 2024, the estimated aggregate gross unrealized gain for federal income tax purposes was $1.7 billion and the estimated aggregate gross unrealized loss for federal income tax purposes was $1.5 billion.
[2] | As of December 31, 2023, the estimated net unrealized loss for federal tax purposes was $0.4 billion based on a tax cost basis of $22.5 billion. As of December 31, 2023, the estimated aggregate gross unrealized loss for federal income tax purposes was $1.7 billion and the estimated aggregate gross unrealized gain for federal income tax purposes was $1.3 billion.

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