Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 3,239	$ 2,852
Regulated Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	944	828
Other non-606 revenue	8	7
Revenue	952	835
Non-regulated revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	2,115	1,915
Other non-606 revenue	172	102
Revenue	2,287	2,017
Corporate Other And Other Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	(25)	(34)
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	(25)	(34)
Other non-606 revenue	0	0
Revenue	(25)	(34)
Renewables
Disaggregation of Revenue [Line Items]
Revenue	495	420
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	477	425
Other non-606 revenue	18	(5)
Revenue	495	420
Utilities
Disaggregation of Revenue [Line Items]
Revenue	971	859
Utilities | Regulated Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	944	828
Other non-606 revenue	8	7
Revenue	952	835
Utilities | Non-regulated revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	17	23
Other non-606 revenue	2	1
Revenue	19	24
Energy Infrastructure
Disaggregation of Revenue [Line Items]
Revenue	1,724	1,607
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	1,572	1,501
Other non-606 revenue	152	106
Revenue	1,724	1,607
New Energy Technologies
Disaggregation of Revenue [Line Items]
Revenue	74	0
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	74	0
Other non-606 revenue	0	0
Revenue	$ 74	$ 0