Segments and Geographic Information Segment and Geographic Information ( Revenue by Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 12,668	$ 12,617	$ 11,141
Corporate, Non-Segment [Member] | Corporate and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	138	116	108
Intersegment Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	(216)	(216)	(182)
Operating Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	12,668	12,617	11,141
Operating Segments [Member] | Renewables
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	2,339	1,893	1,562
Operating Segments [Member] | Utilities
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	3,495	3,617	2,944
Operating Segments [Member] | Energy Infrastructure
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	6,836	7,204	6,702
Operating Segments [Member] | New Energy Technologies
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 76	$ 3	$ 7