v3.25.1
Fair Value of Financial Instruments - Schedule of Roll Forward Level III (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period $ 12,035 $ 13,073
Accretion of discount (amortization of premium) 9 15
Purchases 1,720 1,841
Paid-in-kind interest 64 25
Sales and repayments (1,352) (2,232)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 12,443 12,666
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 (55) 12
Net realized gain (loss)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (18) (244)
Net change in unrealized appreciation (depreciation)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (15) 188
Senior Secured Loans—First Lien    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 7,780 8,429
Accretion of discount (amortization of premium) 7 11
Purchases 1,267 1,323
Paid-in-kind interest 36 10
Sales and repayments (873) (1,739)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 8,205 8,026
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 (10) 44
Senior Secured Loans—First Lien | Net realized gain (loss)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (13) (105)
Senior Secured Loans—First Lien | Net change in unrealized appreciation (depreciation)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) 1 97
Senior Secured Loans—Second Lien    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 693 1,090
Accretion of discount (amortization of premium) 1 3
Purchases 0 51
Paid-in-kind interest 1 0
Sales and repayments 0 (127)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 683 1,004
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) (2)
Senior Secured Loans—Second Lien | Net realized gain (loss)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) 0 (102)
Senior Secured Loans—Second Lien | Net change in unrealized appreciation (depreciation)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (12) 89
Other Senior Secured Debt    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 46 21
Accretion of discount (amortization of premium) 0 0
Purchases 19 56
Paid-in-kind interest 0 0
Sales and repayments (20) 0
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 46 75
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 0 (1)
Other Senior Secured Debt | Net realized gain (loss)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) 1 (3)
Other Senior Secured Debt | Net change in unrealized appreciation (depreciation)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) 0 1
Subordinated Debt    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 233 322
Accretion of discount (amortization of premium) 0 0
Purchases 7 10
Paid-in-kind interest 4 10
Sales and repayments (8) 0
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 242 334
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 9 (8)
Subordinated Debt | Net realized gain (loss)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (10) 0
Subordinated Debt | Net change in unrealized appreciation (depreciation)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) 16 (8)
Asset Based Finance    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 2,102 2,077
Accretion of discount (amortization of premium) 1 1
Purchases 380 345
Paid-in-kind interest 6 2
Sales and repayments (334) (361)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 2,170 2,079
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 1 22
Asset Based Finance | Net realized gain (loss)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) 14 (4)
Asset Based Finance | Net change in unrealized appreciation (depreciation)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) 1 19
Equity/Other    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Fair value at beginning of period 1,181 1,134
Accretion of discount (amortization of premium) 0 0
Purchases 47 56
Paid-in-kind interest 17 3
Sales and repayments (117) (5)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Fair value at end of period 1,097 1,148
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 (44) (43)
Equity/Other | Net realized gain (loss)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) (10) (30)
Equity/Other | Net change in unrealized appreciation (depreciation)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Net realized gain (loss) $ (21) $ (10)