CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
INVESTMENT INCOME:
PIK interest income	$ 138.0	$ 164.0	$ 150.0
Total investment income	2,096.0	1,820.0	1,511.0
EXPENSES:
Interest and credit facility fees	455.0	372.0	317.0
Base management fees	305.0	253.0	217.0
Income based fees	252.0	225.0	184.0
Capital gains incentive fees	(101.0)	161.0	(58.0)
Administrative fees	11.0	15.0	13.0
Other general and administrative	27.0	24.0	25.0
Total expenses	949.0	1,050.0	698.0
NET INVESTMENT INCOME BEFORE INCOME TAXES	1,147.0	770.0	813.0
Income tax expense, including excise tax	55.0	29.0	19.0
NET INVESTMENT INCOME	1,092.0	741.0	794.0
REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS, FOREIGN CURRENCY AND OTHER TRANSACTIONS:
Foreign currency and other transactions	57.0	25.0	(18.0)
Net realized gains (losses)	81.0	283.0	(166.0)
Net unrealized losses (gains) on investments, foreign currency and other transactions	(12.0)	(16.0)	0.0
Net unrealized gains (losses)	(525.0)	586.0	(144.0)
Net realized and unrealized gains (losses) on investments, foreign currency and other transactions	(444.0)	869.0	(310.0)
Realized loss on extinguishment of debt	(48.0)	(43.0)	0.0
NET INCREASE IN STOCKHOLDERS’ EQUITY RESULTING FROM OPERATIONS	$ 600.0	$ 1,567.0	$ 484.0
NET INCOME PER COMMON SHARE (see Note 10)
Basic (in usd per share)	$ 1.21	$ 3.51	$ 1.14
Diluted (in usd per share)	$ 1.19	$ 3.51	$ 1.14
WEIGHTED AVERAGE SHARES OF COMMON STOCK OUTSTANDING (see Note 10)
Basic (in shares)	498	446	424
Diluted (in shares)	518	446	424
Non-controlled/non-affiliate
INVESTMENT INCOME:
Interest income (excluding payment-in-kind (“PIK”) interest income)	$ 1,141.0	$ 911.0	$ 844.0
PIK interest income	121.0	133.0	116.0
Capital structuring service fees	133.0	285.0	128.0
Dividend income	194.0	122.0	74.0
Other income	43.0	40.0	50.0
Total investment income	1,632.0	1,491.0	1,212.0
REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS, FOREIGN CURRENCY AND OTHER TRANSACTIONS:
Net realized gains (losses):	56.0	129.0	(159.0)
Net unrealized gains (losses):	(585.0)	556.0	(284.0)
Non-controlled affiliate
INVESTMENT INCOME:
Interest income (excluding payment-in-kind (“PIK”) interest income)	8.0	7.0	9.0
PIK interest income	5.0	4.0	3.0
Capital structuring service fees	0.1	0.3	1.0
Dividend income	2.0	0.0	0.0
Other income	0.3	1.0	0.0
Total investment income	15.0	12.0	13.0
REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS, FOREIGN CURRENCY AND OTHER TRANSACTIONS:
Net realized gains (losses):	6.1	67.5	16.0
Net unrealized gains (losses):	71.0	(16.0)	(2.0)
Controlled affiliate
INVESTMENT INCOME:
Interest income (excluding payment-in-kind (“PIK”) interest income)	183.0	164.0	156.0
PIK interest income	12.0	28.0	31.0
Capital structuring service fees	20.0	21.0	20.0
Dividend income	228.2	100.5	75.0
Other income	6.0	4.0	4.0
Total investment income	449.0	317.0	286.0
REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS, FOREIGN CURRENCY AND OTHER TRANSACTIONS:
Net realized gains (losses):	(37.5)	61.3	(5.0)
Net unrealized gains (losses):	$ 1.0	$ 62.0	$ 142.0