Segments (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) segment	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting Information [Line Items]
Total Revenue	$ 3,078	$ 2,700	$ 5,930	$ 5,335
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	(160)	(130)	$ 104	(121)
Net equity in earnings (losses) of affiliates	5	(10)	(28)	(40)
Less: Income (loss) from continuing operations before taxes, attributable to noncontrolling interests	53	(140)	119	23
Pretax contribution	(208)	0	(43)	(184)
Unrealized derivative losses (gains)	35	(8)	(6)	(77)
Unrealized foreign currency transaction losses (gains)	(39)	12	(20)	6
Disposition/acquisition losses (gains)	(23)	229	(32)	244
Impairment losses	(479)	(628)	(480)	(1,103)
Extinguishment of debt losses (gains)	(6)	(18)	(16)	(24)
Gain (Loss) on Contract Termination	0	(110)	0	(220)
Adjusted Pretax Contribution	304	303	511	550
Assets
Total Assets	36,070		36,070		$ 32,963
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total Revenue	(39)	(40)	(71)	(67)
Reconciliation To Income From Continuing Operations Before Taxes
Adjusted Pretax Contribution	35	15	30	25
US and Utilities [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenue	1,197	972	2,314	1,921
Reconciliation To Income From Continuing Operations Before Taxes
Adjusted Pretax Contribution	70	128	127	172
Assets
Total Assets	18,541		18,541		16,512
MCAC [Member]
Segment Reporting Information [Line Items]
Total Revenue	686	490	1,252	1,025
MCAC [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenue	686	490	1,252	1,025
Reconciliation To Income From Continuing Operations Before Taxes
Adjusted Pretax Contribution	87	71	124	132
Assets
Total Assets	4,968		4,968		4,545
EURASIA [Member]
Segment Reporting Information [Line Items]
Total Revenue	318	277	686	547
EURASIA [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenue	318	277	686	547
Reconciliation To Income From Continuing Operations Before Taxes
Adjusted Pretax Contribution	42	48	107	99
Assets
Total Assets	2,904		2,904		3,466
Corporate Other And Other Eliminations [Member]
Segment Reporting Information [Line Items]
Total Revenue	(3)	(3)	(12)	(6)
Corporate Other And Other Eliminations [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenue	36	37	59	61
Reconciliation To Income From Continuing Operations Before Taxes
Adjusted Pretax Contribution	(75)	(55)	(150)	(62)
Assets
Total Assets	819		819		712
South American SBU
Segment Reporting Information [Line Items]
Total Revenue	880	964	1,690	1,848
South American SBU | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenue	880	964	1,690	1,848
Reconciliation To Income From Continuing Operations Before Taxes
Adjusted Pretax Contribution	145	$ 96	273	$ 184
Assets
Total Assets	$ 8,838		$ 8,838		$ 7,728