INVESTMENTS - IHAM Selected Balance Sheet Information (Details) - USD ($) $ in Millions	Dec. 31, 2024		Dec. 31, 2023
Assets
Fair Value	$ 26,719.9	[1]	$ 22,873.7	[2]
Cash and cash equivalents	635.0		535.0
Other assets	158.0		101.0
Total assets	28,254.0		23,800.0
Liabilities
Total liabilities	14,899.0		12,599.0
Equity
Accumulated earnings	852.0		462.0
Total liabilities and stockholders’ equity	28,254.0		23,800.0
Amortized Cost	26,374.0	[1]	22,667.6	[2]
Unrealized losses	1,500.0		1,700.0
Unrealized depreciation	200.0		400.0
Ivy Hill Asset Management, L.P.
Assets
Fair Value	8,173.0		9,401.0
Cash and cash equivalents	1,021.0		716.0
Other assets	127.0		102.0
Total assets	9,321.0		10,219.0
Liabilities
Debt	6,956.0		7,921.0
Subordinated note from ARCC			62.0
Subordinated notes	309.0		288.0
Other liabilities	314.0		190.0
Total liabilities	7,579.0		8,461.0
Equity
Contributed capital	1,701.0		1,701.0
Accumulated earnings	186.0		126.0
Net unrealized losses on investments and foreign currency transactions	(79.0)		(15.0)
Non-controlling interests in Consolidated IHAM Vehicles	(66.0)		(54.0)
Total equity	1,742.0		1,758.0
Total liabilities and stockholders’ equity	9,321.0		10,219.0
Amortized Cost	2,237.0		2,288.0
Ivy Hill Asset Management, L.P. | Eliminations
Assets
Fair Value	(2,086.0)		(2,265.0)
Cash and cash equivalents	0.0		0.0
Other assets	(55.0)		(68.0)
Total assets	(2,141.0)		(2,333.0)
Liabilities
Debt	0.0		0.0
Subordinated note from ARCC			0.0
Subordinated notes	(717.0)		(992.0)
Other liabilities	(13.0)		(16.0)
Total liabilities	(730.0)		(1,008.0)
Equity
Contributed capital	0.0		0.0
Accumulated earnings	0.0		0.0
Net unrealized losses on investments and foreign currency transactions	0.0		0.0
Non-controlling interests in Consolidated IHAM Vehicles	(1,411.0)		(1,325.0)
Total equity	(1,411.0)		(1,325.0)
Total liabilities and stockholders’ equity	(2,141.0)		(2,333.0)
Ivy Hill Asset Management, L.P. | Ivy Hill Asset Management, L.P. | Operating Segments
Assets
Fair Value	2,161.0		2,274.0
Cash and cash equivalents	9.0		9.0
Other assets	60.0		70.0
Total assets	2,230.0		2,353.0
Liabilities
Debt	406.0		462.0
Subordinated note from ARCC			62.0
Subordinated notes	0.0		0.0
Other liabilities	16.0		17.0
Total liabilities	422.0		541.0
Equity
Contributed capital	1,701.0		1,701.0
Accumulated earnings	186.0		126.0
Net unrealized losses on investments and foreign currency transactions	(79.0)		(15.0)
Non-controlling interests in Consolidated IHAM Vehicles	0.0		0.0
Total equity	1,808.0		1,812.0
Total liabilities and stockholders’ equity	2,230.0		2,353.0
Amortized Cost	8,343.0		9,619.0
Ivy Hill Asset Management, L.P. | Consolidated IHAM Vehicles | Operating Segments
Assets
Fair Value	8,098.0		9,392.0
Cash and cash equivalents	1,012.0		707.0
Other assets	122.0		100.0
Total assets	9,232.0		10,199.0
Liabilities
Debt	6,550.0		7,459.0
Subordinated note from ARCC			0.0
Subordinated notes	1,026.0		1,280.0
Other liabilities	311.0		189.0
Total liabilities	7,887.0		8,928.0
Equity
Contributed capital	0.0		0.0
Accumulated earnings	0.0		0.0
Net unrealized losses on investments and foreign currency transactions	0.0		0.0
Non-controlling interests in Consolidated IHAM Vehicles	1,345.0		1,271.0
Total equity	1,345.0		1,271.0
Total liabilities and stockholders’ equity	9,232.0		10,199.0
Unrealized depreciation	171.0		221.0
Ivy Hill Asset Management, L.P. | Consolidated IHAM Vehicles | Eliminations
Equity
Unrealized losses	$ 70.0		$ 13.0

[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.