v3.25.2
INVESTMENTS - Amortized Cost and Fair Value of the Investment in IHAM (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
Amortized Cost $ 27,580.7 [1] $ 26,374.0 [2]
Fair Value 27,886.4 [1] 26,719.9 [2]
Ivy Hill Asset Management, L.P.    
Schedule of Investments [Line Items]    
Amortized Cost 1,856.0 1,701.0
Fair Value 2,081.0 1,915.0
Debt investment    
Schedule of Investments [Line Items]    
Amortized Cost 155.0 0.0
Fair Value 155.0 0.0
Commitment to fund 500.0  
Equity    
Schedule of Investments [Line Items]    
Amortized Cost 1,701.0 1,701.0
Fair Value $ 1,926.0 $ 1,915.0
[1] As of June 30, 2025, the estimated net unrealized gain for federal tax purposes was approximately $0.3 billion based on a tax cost basis of $27.5 billion. As of June 30, 2025, the estimated aggregate gross unrealized gain for federal income tax purposes was approximately $1.8 billion and the estimated aggregate gross unrealized loss for federal income tax purposes was approximately $1.5 billion.
[2] 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.