Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities
Net increase (decrease) in net assets resulting from operations	$ 585	$ 696	$ 92
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:
Purchases of investments	(4,731)	(1,817)	(4,642)
Paid-in-kind interest	(203)	(144)	(120)
Proceeds from sales and repayments of investments	5,974	2,570	4,741
Net realized (gain) loss on investments	486	343	(149)
Net change in unrealized (appreciation) depreciation on investments	(217)	(166)	981
Net change in unrealized (appreciation) depreciation on foreign currency forward contracts	7	15	(16)
Accretion of discount	(61)	(58)	(87)
Amortization of deferred financing costs and discount	19	16	14
Unrealized (gain)/loss on borrowings in foreign currency	(36)	17	(30)
(Increase) decrease in receivable for investments sold and repaid	60	(34)	355
(Increase) decrease in income receivable	14	(63)	(74)
(Increase) decrease in prepaid expenses and other assets	(8)	1	(4)
Increase (decrease) in payable for investments purchased	2	(14)	12
Increase (decrease) in management fees payable	(3)	(3)	(1)
Increase (decrease) in subordinated income incentive fees payable	(6)	14	8
Increase (decrease) in administrative services expense payable	(2)	(1)	1
Increase (decrease) in interest payable	10	8	20
Increase (decrease) in other accrued expenses and liabilities	11	4	6
Net cash provided by (used in) operating activities	1,901	1,384	1,107
Cash flows from financing activities
Repurchases of common stock	0	(32)	(56)
Stockholder distributions	(1,008)	(823)	(738)
Borrowings under financing arrangements	4,957	2,169	3,243
Repayments of financing arrangements	(5,759)	(2,697)	(3,661)
Deferred financing costs paid	(26)	(21)	(21)
Net cash provided by (used in) financing activities	(1,836)	(1,404)	(1,233)
Total increase (decrease) in cash	65	(20)	(126)
Cash and foreign currency at beginning of year	231	251	377
Cash and foreign currency at end of year	296	231	251
Supplemental disclosure
Federal income taxes paid during the year	3	1	0
Interest paid during the year	$ 437	$ 443	$ 331