Asset Retirement Obligations - EEGH - Change in Asset Retirement Obligations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning Balance	$ 1,428	$ 1,328
Retirements	(38)	(64)
Accretion	58	54
Ending Balance	1,550	1,428
Total ARO liability	1,550	1,428
EEGH
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning Balance	30	48
Retirements	(3)	(19)
Accretion	1	1
Ending Balance	28	30
Other current liabilities	3	5
Other long-term liabilities	25	25
Total ARO liability	$ 28	$ 30