v3.26.1
Fair Value of Financial Instruments - Schedule of Roll Forward Level III (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Accretion of discount (amortization of premium) $ 11 $ 23
Investments    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 11,005 12,035
Accretion of discount (amortization of premium) 11 23
Purchases 1,509 3,201
Paid-in-kind interest 80 116
Sales and repayments (2,242) (3,090)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 9,760 11,990
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date (480) (309)
Investments | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (253) (153)
Investments | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (350) (142)
Senior Secured Loans—First Lien    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 7,512 7,780
Accretion of discount (amortization of premium) 8 16
Purchases 961 2,367
Paid-in-kind interest 42 64
Sales and repayments (1,531) (1,985)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 6,701 8,039
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date (307) (200)
Senior Secured Loans—First Lien | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (111) (62)
Senior Secured Loans—First Lien | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (180) (141)
Senior Secured Loans—Second Lien    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 538 693
Accretion of discount (amortization of premium) 2 2
Purchases 0 0
Paid-in-kind interest 0 1
Sales and repayments (5) (1)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 440 674
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date (94) (21)
Senior Secured Loans—Second Lien | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (1) 0
Senior Secured Loans—Second Lien | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (94) (21)
Other Senior Secured Debt    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 52 46
Accretion of discount (amortization of premium) 0 0
Purchases 7 19
Paid-in-kind interest 2 1
Sales and repayments 0 (36)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 41 26
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date 11 0
Other Senior Secured Debt | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (31) (7)
Other Senior Secured Debt | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) 11 3
Subordinated Debt    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 126 233
Accretion of discount (amortization of premium) 1 1
Purchases 44 72
Paid-in-kind interest 0 5
Sales and repayments (59) (76)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 100 225
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date (11) (8)
Subordinated Debt | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) 0 (9)
Subordinated Debt | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (12) (1)
Asset Based Finance    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 1,694 2,102
Accretion of discount (amortization of premium) 0 1
Purchases 368 550
Paid-in-kind interest 10 9
Sales and repayments (603) (691)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 1,436 1,996
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date (52) 12
Asset Based Finance | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) 20 14
Asset Based Finance | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (53) 11
Equity/Other    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 1,083 1,181
Accretion of discount (amortization of premium) 0 3
Purchases 129 193
Paid-in-kind interest 26 36
Sales and repayments (44) (301)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 1,042 1,030
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date (27) (92)
Equity/Other | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (130) (89)
Equity/Other | Location, Statement of Income, Balance [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) $ (22) $ 7