Segments and Geographic Information Segment and Geographic Information ( Revenue by Segment) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 3,060	$ 3,627	$ 3,078	$ 2,852	$ 2,770	$ 3,036	$ 2,700	$ 2,635	$ 12,617	$ 11,141	$ 9,660
US and Utilities SBU
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									5,013	4,335	3,918
South America
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									3,539	3,541	3,159
MCAC [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									2,868	2,157	1,766
EURASIA [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									1,217	1,123	828
Corporate and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									(20)	(15)	(11)
Corporate, Non-Segment [Member] | Corporate and Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									119	116	231
Intersegment Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									(139)	(131)	(242)
Operating Segments [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									12,617	11,141	9,660
Operating Segments [Member] | US and Utilities SBU
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									5,013	4,335	3,918
Operating Segments [Member] | South America
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									3,539	3,541	3,159
Operating Segments [Member] | MCAC [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									2,868	2,157	1,766
Operating Segments [Member] | EURASIA [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues									$ 1,217	$ 1,123	$ 828