Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 3,085	$ 3,239
Regulated Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	847	944
Other non-606 revenue	6	8
Revenue	853	952
Non-regulated revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,975	2,115
Other non-606 revenue	257	172
Revenue	2,232	2,287
Corporate Other And Other Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	(21)	(25)
Corporate Other And Other Eliminations [Member] | Regulated Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0
Other non-606 revenue	0	0
Revenue	0	0
Corporate Other And Other Eliminations [Member] | Non-regulated revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	(21)	(25)
Other non-606 revenue	0	0
Revenue	(21)	(25)
Renewables
Disaggregation of Revenue [Line Items]
Revenue	619	495
Renewables | Regulated Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0
Other non-606 revenue	0	0
Revenue	0	0
Renewables | Non-regulated revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	570	477
Other non-606 revenue	49	18
Revenue	619	495
Utilities
Disaggregation of Revenue [Line Items]
Revenue	873	971
Utilities | Regulated Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	847	944
Other non-606 revenue	6	8
Revenue	853	952
Utilities | Non-regulated revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	19	17
Other non-606 revenue	1	2
Revenue	20	19
Energy Infrastructure
Disaggregation of Revenue [Line Items]
Revenue	1,614	1,724
Energy Infrastructure | Regulated Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0
Other non-606 revenue	0	0
Revenue	0	0
Energy Infrastructure | Non-regulated revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,407	1,572
Other non-606 revenue	207	152
Revenue	1,614	1,724
New Energy Technologies
Disaggregation of Revenue [Line Items]
Revenue	0	74
New Energy Technologies | Regulated Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	0
Other non-606 revenue	0	0
Revenue	0	0
New Energy Technologies | Non-regulated revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	0	74
Other non-606 revenue	0	0
Revenue	$ 0	$ 74