XML 163 R126.htm IDEA: XBRL DOCUMENT v3.25.0.1
Fair Value - Schedule of Quantitative Information (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2024
USD ($)
MMBTU
$ / MMBTU
Dec. 31, 2023
MMBTU
Fair Value, Recurring [Member] | Level 3 [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments $ 53  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Fair Value, Recurring [Member] | Natural Gas Exchange [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Derivative Liability $ (3)  
Internally Derived Weighted Average Cost Of Gas [Member] | Sales [Member] | Minimum [Member] | Natural Gas Exchange [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Transaction/Delivery Volumes | MMBTU 280,000  
Derivative, Forward Price | $ / MMBTU 2.28  
Internally Derived Weighted Average Cost Of Gas [Member] | Sales [Member] | Maximum [Member] | Natural Gas Exchange [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Transaction/Delivery Volumes | MMBTU   600,000
Derivative, Forward Price | $ / MMBTU 4.57  
Internally Derived Weighted Average Cost Of Gas [Member] | Sales [Member] | Weighted Average [Member] | Natural Gas Exchange [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Derivative, Forward Price | $ / MMBTU 3.18  
Market Approach [Member] | Minimum [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, comparable enterprise values $ 130  
Equity investments, time to liquidity event 1 year 6 months  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Market Approach [Member] | Maximum [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, comparable enterprise values $ 389  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Market Approach [Member] | Weighted Average [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, comparable enterprise values $ 246  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Discounted Cash Flows [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, terminal date 2029  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Discounted Cash Flows [Member] | Discount Rate [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, measurement input 25  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Discounted Cash Flows [Member] | Market Exit Reduction [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, measurement input 50  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Discounted Cash Flows [Member] | Revenue Market Multiples [Member] | Minimum [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, measurement input 0.49  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Discounted Cash Flows [Member] | Revenue Market Multiples [Member] | Maximum [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, measurement input 6.02  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Discounted Cash Flows [Member] | Revenue Market Multiples [Member] | Weighted Average [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, measurement input 2.11  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Discounted Cash Flows [Member] | Annual Revenues [Member] | Minimum [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, annual revenues $ 23  
Investment, Type [Extensible Enumeration] Equity Funds [Member]  
Discounted Cash Flows [Member] | Annual Revenues [Member] | Maximum [Member] | Fair Value, Recurring [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Equity investments, annual revenues $ 153  
Investment, Type [Extensible Enumeration] Equity Funds [Member]