v3.25.1
Fair Value of Financial Instruments - Schedule of Unobservable Inputs (Details)
$ in Millions
Mar. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 14,121.5 [1] $ 13,490.4 [2]
Asset Based Finance    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 2,170.1 [1] 2,101.7 [2]
Level 3—Significant unobservable inputs    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 12,443.0 12,035.0
Level 3—Significant unobservable inputs | Senior Notes | Discounted Cash Flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 6,929.0 $ 7,115.0
Level 3—Significant unobservable inputs | Senior Notes | Discounted Cash Flow | Minimum | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.065 0.058
Level 3—Significant unobservable inputs | Senior Notes | Discounted Cash Flow | Maximum | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.250 0.238
Level 3—Significant unobservable inputs | Senior Notes | Discounted Cash Flow | Weighted Average | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.106 0.106
Level 3—Significant unobservable inputs | Senior Notes | Waterfall    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 1,407.0 $ 1,376.0
Level 3—Significant unobservable inputs | Senior Notes | Waterfall | Minimum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.7 0.7
Level 3—Significant unobservable inputs | Senior Notes | Waterfall | Maximum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 11.5 11.3
Level 3—Significant unobservable inputs | Senior Notes | Waterfall | Weighted Average | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 8.7 8.6
Level 3—Significant unobservable inputs | Senior Notes | Other    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 103.0 $ 14.0
Level 3—Significant unobservable inputs | Senior Notes | Cost    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 495.0 14.0
Level 3—Significant unobservable inputs | Subordinated Debt | Discounted Cash Flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 195.0 $ 188.0
Level 3—Significant unobservable inputs | Subordinated Debt | Discounted Cash Flow | Minimum | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.113 0.113
Level 3—Significant unobservable inputs | Subordinated Debt | Discounted Cash Flow | Maximum | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.152 0.154
Level 3—Significant unobservable inputs | Subordinated Debt | Discounted Cash Flow | Weighted Average | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.125 0.127
Level 3—Significant unobservable inputs | Subordinated Debt | Waterfall    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 47.0 $ 33.0
Level 3—Significant unobservable inputs | Subordinated Debt | Waterfall | Minimum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 5.0 7.0
Level 3—Significant unobservable inputs | Subordinated Debt | Waterfall | Maximum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 9.3 7.0
Level 3—Significant unobservable inputs | Subordinated Debt | Waterfall | Weighted Average | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 6.8 7.0
Level 3—Significant unobservable inputs | Subordinated Debt | Other    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value   $ 12.0
Level 3—Significant unobservable inputs | Asset Based Finance | Discounted Cash Flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 1,617.0 $ 1,513.0
Level 3—Significant unobservable inputs | Asset Based Finance | Discounted Cash Flow | Minimum | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.047 0.048
Level 3—Significant unobservable inputs | Asset Based Finance | Discounted Cash Flow | Maximum | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.416 0.417
Level 3—Significant unobservable inputs | Asset Based Finance | Discounted Cash Flow | Weighted Average | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.116 0.128
Level 3—Significant unobservable inputs | Asset Based Finance | Waterfall    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 453.0 $ 516.0
Level 3—Significant unobservable inputs | Asset Based Finance | Waterfall | Minimum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.9 1.0
Level 3—Significant unobservable inputs | Asset Based Finance | Waterfall | Maximum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 1.3 1.4
Level 3—Significant unobservable inputs | Asset Based Finance | Waterfall | Weighted Average | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 1.2 1.2
Level 3—Significant unobservable inputs | Asset Based Finance | Other    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 40.0 $ 30.0
Level 3—Significant unobservable inputs | Asset Based Finance | Cost    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 59.0 41.0
Level 3—Significant unobservable inputs | Asset Based Finance | Indicative Dealer Quotes    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 1.0 $ 2.0
Level 3—Significant unobservable inputs | Asset Based Finance | Indicative Dealer Quotes | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.163 0.230
Level 3—Significant unobservable inputs | Asset Based Finance | Indicative Dealer Quotes | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.163 0.230
Level 3—Significant unobservable inputs | Asset Based Finance | Indicative Dealer Quotes | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.163 0.230
Level 3—Significant unobservable inputs | Equity/Other | Discounted Cash Flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 495.0 $ 538.0
Level 3—Significant unobservable inputs | Equity/Other | Discounted Cash Flow | Minimum | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.040 0.043
Level 3—Significant unobservable inputs | Equity/Other | Discounted Cash Flow | Maximum | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.210 0.248
Level 3—Significant unobservable inputs | Equity/Other | Discounted Cash Flow | Weighted Average | Discount Rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.135 0.143
Level 3—Significant unobservable inputs | Equity/Other | Waterfall    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 535.0 $ 625.0
Level 3—Significant unobservable inputs | Equity/Other | Waterfall | Minimum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.7 0.7
Level 3—Significant unobservable inputs | Equity/Other | Waterfall | Maximum | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 15.3 16.0
Level 3—Significant unobservable inputs | Equity/Other | Waterfall | Weighted Average | EBITDA Multiple    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 8.5 8.3
Level 3—Significant unobservable inputs | Equity/Other | Other    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 52.0 $ 18.0
Level 3—Significant unobservable inputs | Equity/Other | Option Pricing Model    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 15.0  
Level 3—Significant unobservable inputs | Equity/Other | Option Pricing Model | Minimum | Equity Illiquidity Discount    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.300  
Level 3—Significant unobservable inputs | Equity/Other | Option Pricing Model | Maximum | Equity Illiquidity Discount    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.300  
Level 3—Significant unobservable inputs | Equity/Other | Option Pricing Model | Weighted Average | Equity Illiquidity Discount    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Measurement input 0.300  
[1] See Note 8 for additional information regarding the fair value of the Company’s financial instruments.
[2] See Note 8 for additional information regarding the fair value of the Company’s financial instruments.