INVESTMENTS - IHAM Selected Balance Sheet Information (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Assets
Fair Value	$ 21,779.8	$ 20,009.5
Cash and cash equivalents	303.0	372.0
Other assets	81.0	99.0
Total assets	22,398.0	20,843.0
Liabilities
Total liabilities	12,843.0	11,975.0
Equity
Total liabilities and stockholders’ equity	22,398.0	20,843.0
Amortized Cost	22,043.0	19,810.0
Unrealized depreciation	(200.0)	100.0
Ivy Hill Asset Management, L.P.
Assets
Fair Value	8,998.0	5,549.0
Cash and cash equivalents	504.0	424.0
Other assets	98.0	83.0
Total assets	9,600.0	6,056.0
Liabilities
Debt	7,276.0	4,781.0
Subordinated note from ARCC	500.0	16.0
Subordinated notes	281.0	283.0
Other liabilities	131.0	91.0
Total liabilities	8,188.0	5,171.0
Equity
Contributed capital	1,547.0	765.0
Accumulated earnings	61.0	78.0
Net unrealized losses on investments and foreign currency transactions	(33.0)	0.0
Non-controlling interests in Consolidated IHAM Vehicles	(163.0)	42.0
Total equity	1,412.0	885.0
Total liabilities and stockholders’ equity	9,600.0	6,056.0
Amortized Cost	2,370.0	966.0
Ivy Hill Asset Management, L.P. | Intersegment Eliminations
Assets
Fair Value	(2,315.0)	(927.0)
Cash and cash equivalents	0.0	0.0
Other assets	(51.0)	(8.0)
Total assets	(2,366.0)	(935.0)
Liabilities
Debt	0.0	0.0
Subordinated note from ARCC	0.0	0.0
Subordinated notes	(1,093.0)	(700.0)
Other liabilities	(15.0)	(9.0)
Total liabilities	(1,108.0)	(709.0)
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	(1,258.0)	(226.0)
Total equity	(1,258.0)	(226.0)
Total liabilities and stockholders’ equity	(2,366.0)	(935.0)
Ivy Hill Asset Management, L.P. | Ivy Hill Asset Management, L.P. | Operating Segments
Assets
Fair Value	2,340.0	966.0
Cash and cash equivalents	5.0	8.0
Other assets	55.0	12.0
Total assets	2,400.0	986.0
Liabilities
Debt	308.0	125.0
Subordinated note from ARCC	500.0	16.0
Subordinated notes	0.0	0.0
Other liabilities	17.0	2.0
Total liabilities	825.0	143.0
Equity
Contributed capital	1,547.0	765.0
Accumulated earnings	61.0	78.0
Net unrealized losses on investments and foreign currency transactions	(33.0)	0.0
Non-controlling interests in Consolidated IHAM Vehicles	0.0	0.0
Total equity	1,575.0	843.0
Total liabilities and stockholders’ equity	2,400.0	986.0
Amortized Cost	9,306.0	5,588.0
Ivy Hill Asset Management, L.P. | Consolidated IHAM Vehicles | Operating Segments
Assets
Fair Value	8,973.0	5,510.0
Cash and cash equivalents	499.0	416.0
Other assets	94.0	79.0
Total assets	9,566.0	6,005.0
Liabilities
Debt	6,968.0	4,656.0
Subordinated note from ARCC	0.0	0.0
Subordinated notes	1,374.0	983.0
Other liabilities	129.0	98.0
Total liabilities	8,471.0	5,737.0
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	1,095.0	268.0
Total equity	1,095.0	268.0
Total liabilities and stockholders’ equity	9,566.0	6,005.0
Unrealized depreciation	$ 309.0	$ 30.0