Borrowings - June 2026 Notes (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022	Aug. 17, 2021
Debt Instrument [Line Items]
Aggregate Principal Committed	$ 34,855,746,000	$ 36,037,871,000
June 2026 Notes | Unsecured debt
Debt Instrument [Line Items]
Aggregate Principal Committed	$ 400,000,000	$ 400,000,000	$ 400,000,000
Interest rate			3.27%
June 2026 Notes | Unsecured debt | Below Investment Grade Event
Debt Instrument [Line Items]
Interest rate			4.27%