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- Definition

Amount of fees and commissions from banking, advisory, brokerage, and securities underwriting activities. Activities include, but are not limited to, underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, sale and servicing of mutual funds, and other related consulting fees.

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- Definition

Rate based on performance for management and service fees under arrangement to manage operations, including, but not limited to, investment.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions		6 Months Ended
	Jun. 29, 2026	Jun. 30, 2026	Jun. 30, 2025
Structuring Fees
Related Party Transaction [Line Items]
Structuring fee revenue		$ 5	$ 15
FS/KKR Advisor, LLC
Related Party Transaction [Line Items]
Incentive fee waived, percent of the subordinated incentive fee that would otherwise be paid by the company	50.00%
FS/KKR Advisor, LLC \| Investment Advisory Agreement - Incentive Rate, Realized Capital Gains
Related Party Transaction [Line Items]
Incentive fee (as percent)		20.00%
FS/KKR Advisor, LLC \| Investment Advisory Agreement - Incentive Rate, Quarterly In Arrears Catch-up Threshold
Related Party Transaction [Line Items]
Incentive fee (as percent)		17.50%
FS/KKR Advisor, LLC \| Investment Advisory Agreement - Incentive Rate, Quarterly Catch-up Threshold
Related Party Transaction [Line Items]
Incentive fee (as percent)		1.75%
FS/KKR Advisor, LLC \| Investment Advisory Agreement - Incentive Rate, Annualized Hurdle Rate
Related Party Transaction [Line Items]
Incentive fee (as percent)		7.00%
FS/KKR Advisor, LLC \| Investment Advisory Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up Threshold
Related Party Transaction [Line Items]
Incentive fee (as percent)		2.12%
FS/KKR Advisor, LLC \| Investment Advisory Agreement - Incentive Rate, Annualized Catch-Up Threshold
Related Party Transaction [Line Items]
Incentive fee (as percent)		8.48%