Segments and Geographic Information Segment and Geographic Information (Assets, Depreciation and Amortization and Capital Expenditures ) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total Assets	$ 44,799	$ 38,363	$ 32,963
Depreciation and Amortization	1,128	1,053	1,056
Capital Expenditures	7,733	4,584	2,140
Interest Income	551	389	298
Interest Expense	1,319	1,117	911
Long-Lived Assets	30,338	23,395	20,183
Assets, Current	6,649	7,643	5,356
Restricted Cash, Noncurrent	194	177	237
Goodwill	348	362	1,177
Other intangible assets, net of accumulated amortization of $498 and $434, respectively	2,243	1,841	1,450
Other noncurrent assets, excluding ROU assets for operating leases	2,879	3,674	1,911
Deferred Tax Assets, Tax Deferred Expense	396	319	409
Net equity in losses of affiliates	(32)	(71)	(24)
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	811	0	1,160
Operating Segments [Member] | Renewables
Segment Reporting Information [Line Items]
Total Assets	15,735	9,533	6,353
Depreciation and Amortization	338	260	222
Capital Expenditures	5,759	2,972	721
Interest Income	181	131	55
Interest Expense	326	236	200
Goodwill	318	320
Net equity in losses of affiliates	41	28	63
Operating Segments [Member] | Utilities
Segment Reporting Information [Line Items]
Total Assets	7,166	6,311	6,027
Depreciation and Amortization	400	376	361
Capital Expenditures	1,374	859	544
Interest Income	12	8	5
Interest Expense	243	234	218
Goodwill	0	0
Net equity in losses of affiliates	5	6	3
Operating Segments [Member] | Energy Infrastructure
Segment Reporting Information [Line Items]
Total Assets	7,414	7,532	7,778
Depreciation and Amortization	381	404	458
Capital Expenditures	585	742	847
Interest Income	337	246	236
Interest Expense	534	488	422
Goodwill	27	39
Net equity in losses of affiliates	6	9	(4)
Operating Segments [Member] | New Energy Technologies
Segment Reporting Information [Line Items]
Total Assets	14	2	4
Depreciation and Amortization	1	2	1
Capital Expenditures	5	0	0
Interest Income	2	0	0
Interest Expense	0	0	0
Goodwill	3	3
Net equity in losses of affiliates	(84)	(114)	(86)
Corporate, Non-Segment [Member] | Corporate and Other
Segment Reporting Information [Line Items]
Total Assets	9	17	21
Depreciation and Amortization	8	11	14
Capital Expenditures	10	11	28
Interest Income	19	4	2
Interest Expense	216	159	71
Net equity in losses of affiliates	$ 0	$ 0	$ 0