Segments (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) segment	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Segment Reporting Information [Line Items]
Total Revenue	$ 3,085	$ 3,239
Number of strategic business units | segment	4
Number of reportable segments | segment	4
Reconciliation To Income From Continuing Operations Before Taxes
Income (loss) from continuing operations before taxes and equity in earnings of affiliates	$ 277	265
Net equity in losses of affiliates	(15)	(4)
Impairment losses	(26)	(9)
Assets
Long-Lived Assets	32,292		$ 30,338
Net income	278	189
Income Tax Expense (Benefit)	(16)	72
Interest income	(105)	(123)
EBITDA	826	741
Depreciation and amortization	312	273
Interest expense	357	330
Adjustment for noncontrolling interests and redeemable stock of subsidiaries	(162)	(170)
Less: Income taxes expense (benefit), interest expense (income) and depreciation and amortization from equity affiliates	33	39
Unrealized derivative and equity securities losses (gains)	(85)	(39)
Interest income recognized under service concession arrangements	17	18
Unrealized foreign currency losses (gains)	(9)	32
Disposition/ acquisition losses	(43)	(3)
Loss on extinguishment of debt	32	1
Total Adjusted EBITDA	635	628
Other noncurrent assets, excluding ROU assets for operating leases	2,606		2,879
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total Revenue	(54)	(52)
Assets
Adjusted EBITDA	0	6
Corporate Other And Other Eliminations [Member]
Segment Reporting Information [Line Items]
Total Revenue	(21)	(25)
Corporate Other And Other Eliminations [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenue	33	27
Assets
Long-Lived Assets	26		9
Corporate Other And Other Eliminations [Member] | Corporate, Non-Segment
Assets
Adjusted EBITDA	8	(1)
Renewables
Segment Reporting Information [Line Items]
Total Revenue	619	495
Renewables | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenue	619	495
Assets
Long-Lived Assets	17,021		15,735
Adjusted EBITDA	102	124
Utilities
Segment Reporting Information [Line Items]
Total Revenue	873	971
Utilities | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenue	873	971
Assets
Long-Lived Assets	7,694		7,166
Adjusted EBITDA	182	162
Energy Infrastructure
Segment Reporting Information [Line Items]
Total Revenue	1,614	1,724
Energy Infrastructure | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenue	1,614	1,724
Assets
Long-Lived Assets	7,536		7,414
Adjusted EBITDA	360	363
New Energy Technologies
Segment Reporting Information [Line Items]
Total Revenue	0	74
New Energy Technologies | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenue	0	74
Assets
Long-Lived Assets	15		$ 14
Adjusted EBITDA	$ (17)	$ (26)