Components of Accumulated Other Comprehensive Loss, Net - EEGH - Reclassifications from AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Loss, Net [Line Items]
Interest expense	$ 2,216	$ 2,118	$ 2,021
Other, net	(7)	(17)	88
Income (loss) before income tax expense (benefit) and equity income (loss)	1,413	5,294	7,471
Income tax (benefit) expense	(1,916)	(1,132)	308
Net income	3,144	6,189	7,014
EEGH
Accumulated Other Comprehensive Loss, Net [Line Items]
Interest expense	147	151	339
Other, net	(1)	1	42
Income (loss) before income tax expense (benefit) and equity income (loss)	913	725	207
Income tax (benefit) expense	167	117	(24)
Net income	849	652	273
EEGH | Cash flow hedge | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Loss, Net [Line Items]
Income (loss) before income tax expense (benefit) and equity income (loss)	4	27	132
Income tax (benefit) expense	(1)	(7)	(34)
Net income	3	20	98
EEGH | Cash flow hedge | Interest rate contracts | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Loss, Net [Line Items]
Interest expense	3	6	157
EEGH | Cash flow hedge | Foreign currency exchange rate derivatives | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Loss, Net [Line Items]
Other, net	$ 1	$ 21	(25)
EEGH | Unrecognized Amounts on Retirement Benefits | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Loss, Net [Line Items]
Other, net			6
Income (loss) before income tax expense (benefit) and equity income (loss)			6
Income tax (benefit) expense			(2)
Net income			$ 4