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Derivative Assets And Liabilities Table - Outstanding Commodity-Related Derivatives (Details)
Jun. 30, 2024
Megawatt
MMbtu
Dec. 31, 2023
MMbtu
Megawatt
Natural Gas [Member] | Mark-To-Market Derivatives [Member] | Basis Swaps IFERC/NYMEX [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount [1]   (46,975)
Natural Gas [Member] | Mark-To-Market Derivatives [Member] | Basis Swaps IFERC/NYMEX [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount [1] (19,000)  
Natural Gas [Member] | Mark-To-Market Derivatives [Member] | Swing Swaps IFERC [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount (1,033) (97,728)
Natural Gas [Member] | Mark-To-Market Derivatives [Member] | Fixed Swaps/Futures [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount (9,845) (5,247)
Natural Gas [Member] | Mark-To-Market Derivatives [Member] | Options - Puts [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount (50)  
Natural Gas [Member] | Mark-To-Market Derivatives [Member] | Call Option [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount (200) (250)
Natural Gas [Member] | Mark-To-Market Derivatives [Member] | Forward Physical Contracts [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount (6,080) (1,751)
Natural Gas [Member] | Mark-To-Market Derivatives [Member] | Put Option [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount   (1,900)
Natural Gas [Member] | Fair Value Hedging [Member] | Basis Swaps IFERC/NYMEX [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount (52,183) (39,013)
Natural Gas [Member] | Fair Value Hedging [Member] | Fixed Swaps/Futures [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount (52,183) (39,013)
Natural Gas [Member] | Fair Value Hedging [Member] | Hedged Item - Inventory (MMBtu) [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount (52,183) (39,013)
Power [Member] | Mark-To-Market Derivatives [Member] | Options - Puts [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount | Megawatt (14,400)  
Power [Member] | Mark-To-Market Derivatives [Member] | Call Option [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount | Megawatt (500,000) 0
Power [Member] | Mark-To-Market Derivatives [Member] | Forwards Swaps [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount | Megawatt (189,825) (155,600)
Power [Member] | Mark-To-Market Derivatives [Member] | Future [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount | Megawatt (318,920) (464,897)
Power [Member] | Mark-To-Market Derivatives [Member] | Put Option [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount | Megawatt   (136,000)
Crude Oil [Member] | Mark-To-Market Derivatives [Member] | Call Option [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount   (20)
Crude Oil [Member] | Mark-To-Market Derivatives [Member] | Call Option [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount 0  
Crude Oil [Member] | Mark-To-Market Derivatives [Member] | Put Option [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount   (15)
Crude Oil [Member] | Mark-To-Market Derivatives [Member] | Put Option [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount 0  
Crude Oil [Member] | Mark-To-Market Derivatives [Member] | Forward Swaps [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount   (2,674)
Crude Oil [Member] | Mark-To-Market Derivatives [Member] | Forward Swaps [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount (2,359)  
NGL/Refined product | Mark-To-Market Derivatives [Member] | Call Option [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount (2) (43)
NGL/Refined product | Mark-To-Market Derivatives [Member] | Future [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount (3,341) (4,548)
NGL/Refined product | Mark-To-Market Derivatives [Member] | Put Option [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount (4)  
NGL/Refined product | Mark-To-Market Derivatives [Member] | Put Option [Member] | Long [Member]    
Derivative, Nonmonetary Notional Amount   (121)
NGL/Refined product | Mark-To-Market Derivatives [Member] | Forward Swaps [Member] | Short [Member]    
Derivative, Nonmonetary Notional Amount (8,151) (13,870)
[1] Includes aggregate amounts for open positions related to Houston Ship Channel, Waha Hub, NGPL TexOk, West Louisiana Zone and Henry Hub locations.