Revenue Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 12,668	$ 12,617	$ 11,141
Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenues	12,668	12,617	11,141
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenues	(216)	(216)	(182)
Regulated Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	3,391	3,507	2,831
Other non-606 revenue	32	31	37
Revenues	3,423	3,538	2,868
Non-regulated revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	8,445	8,638	7,586
Other non-606 revenue	800	441	687
Revenues	9,245	9,079	8,273
Renewables | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,339	1,893	1,562
Renewables | Regulated Revenue [Member] | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0	0
Other non-606 revenue	0	0	0
Revenues	0	0	0
Renewables | Non-regulated revenue [Member] | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	2,198	1,791	1,438
Other non-606 revenue	141	102	124
Revenues	2,339	1,893	1,562
Utilities | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,495	3,617	2,944
Utilities | Regulated Revenue [Member] | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	3,391	3,507	2,831
Other non-606 revenue	32	31	37
Revenues	3,423	3,538	2,868
Utilities | Non-regulated revenue [Member] | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	68	75	73
Other non-606 revenue	4	4	3
Revenues	72	79	76
Energy Infrastructure | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenues	6,836	7,204	6,702
Energy Infrastructure | Regulated Revenue [Member] | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0	0
Other non-606 revenue	0	0	0
Revenues	0	0	0
Energy Infrastructure | Non-regulated revenue [Member] | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	6,181	6,871	6,143
Other non-606 revenue	655	333	559
Revenues	6,836	7,204	6,702
New Energy Technologies | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenues	76	3	7
New Energy Technologies | Regulated Revenue [Member] | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0	0
Other non-606 revenue	0	0	0
Revenues	0	0	0
New Energy Technologies | Non-regulated revenue [Member] | Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	75	1	6
Other non-606 revenue	1	2	1
Revenues	76	3	7
Corporate and Other | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenues	(78)	(100)	(74)
Corporate and Other | Regulated Revenue [Member] | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0	0
Other non-606 revenue	0	0	0
Revenues	0	0	0
Corporate and Other | Non-regulated revenue [Member] | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	(77)	(100)	(74)
Other non-606 revenue	(1)	0	0
Revenues	$ (78)	$ (100)	$ (74)