v3.26.1
Note 11 - Investments in Unconsolidated Entities - Summary of Equity Value, Period of Time until Potential Liquidity Events and Probabilities (Details) - PWERM [member]
$ in Millions
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Financial forecast of cash inflows (outflows) from initial public offering [member]    
Disclosure of unconsolidated structured entities [line items]    
Measurement input 0.85 0.80
Financial forecast of cash inflows (outflows) from initial public offering [member] | Bottom of range [member]    
Disclosure of unconsolidated structured entities [line items]    
Equity value $ 3,000 $ 3,000
Time horizon 1 1
Financial forecast of cash inflows (outflows) from initial public offering [member] | Top of range [member]    
Disclosure of unconsolidated structured entities [line items]    
Equity value $ 6,000 $ 6,000
Time horizon 1.5 2
Financial forecast of cash inflows (outflows) from sales transactions, measurement input [member]    
Disclosure of unconsolidated structured entities [line items]    
Measurement input 0.10 0.10
Financial forecast of cash inflows (outflows) from sales transactions, measurement input [member] | Bottom of range [member]    
Disclosure of unconsolidated structured entities [line items]    
Equity value $ 3,000 $ 3,000
Time horizon 0.75 1
Financial forecast of cash inflows (outflows) from sales transactions, measurement input [member] | Top of range [member]    
Disclosure of unconsolidated structured entities [line items]    
Equity value $ 5,500 $ 5,500
Time horizon 1.25 2
Financial forecast of cash inflows (outflows) from dissolution, measurement input [member]    
Disclosure of unconsolidated structured entities [line items]    
Equity value $ 223 $ 236
Time horizon 2 3
Measurement input 0.025 0.05
Financial forecast of cash inflows (outflows) from Redemption, measurement input [member]    
Disclosure of unconsolidated structured entities [line items]    
Equity value $ 1,000 $ 1,000
Time horizon 2 3
Measurement input 0.025 0.05