Derivatives and Risk Management Activities - Offsetting Asset and Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Derivative Assets
Effect of Collateral Netting (Liability)	$ 117
Effect of Collateral Netting (Asset)		$ (13)
Commodity Derivatives
Derivative Assets
Effect of Collateral Netting (Liability)	117
Effect of Collateral Netting (Asset)		(13)
Derivative Liabilities
Gross Position - Assets	66	158
Gross Position - Liabilities	(154)	(158)
Net Carrying Value Presented on the Balance Sheet, Total	29	(13)
Other current assets | Commodity Derivatives
Derivative Assets
Gross Position - Assets	59	153
Gross Position - Liabilities	(83)	(79)
Effect of Collateral Netting (Liability)	117
Effect of Collateral Netting (Asset)		(13)
Net Carrying Value Presented on the Balance Sheet	93	61
Other long-term assets, net | Commodity Derivatives
Derivative Assets
Gross Position - Assets	1	3
Net Carrying Value Presented on the Balance Sheet	1	3
Other current liabilities | Commodity Derivatives
Derivative Liabilities
Gross Position - Assets	3	1
Gross Position - Liabilities	(45)	(64)
Net Carrying Value Presented on the Balance Sheet	(42)	(63)
Other long-term liabilities and deferred credits | Commodity Derivatives
Derivative Liabilities
Gross Position - Assets	3	1
Gross Position - Liabilities	(26)	(15)
Net Carrying Value Presented on the Balance Sheet	$ (23)	$ (14)