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Operating Information by Segment and Geographic Area - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	12 Months Ended
	Apr. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Proceeds from sale of NuScale interest		$ 107	$ 0	$ 0
Capital contributions by NCI		21	$ 202	110
Disposal Group, Not Discontinued Operations
Segment Reporting Information [Line Items]
Proceeds from sale of NuScale interest	$ 107
Temporary APIC		$ 107
Japan NuScale Innovation | NuScale | Disposal Group, Not Discontinued Operations
Segment Reporting Information [Line Items]
Entity's interest in partnership or joint venture (percent)	5.00%
Fluor Corporation | NuScale | Disposal Group, Not Discontinued Operations
Segment Reporting Information [Line Items]
Entity's interest in partnership or joint venture (percent)		56.00%
Energy Solutions
Segment Reporting Information [Line Items]
Recognition of reserves for expected credit losses				$ 60
Energy Solutions | Single customer | Consolidated revenue | Customer concentration
Segment Reporting Information [Line Items]
Concentration risk (as a percentage)		14.00%	13.00%	11.00%
Urban Solutions | Highway Project
Segment Reporting Information [Line Items]
Effect of forecast revision on estimated project cost		$ 86
Effect of forecast revision on estimated project cost (in dollars per share)		$ 0.50
Urban Solutions | International Bridge Project
Segment Reporting Information [Line Items]
Effect of forecast revision on estimated project cost		$ 54	$ 138
Effect of forecast revision on estimated project cost (in dollars per share)		$ 0.23	$ 0.72
Urban Solutions | Automated People Move Project
Segment Reporting Information [Line Items]
Effect of forecast revision on estimated project cost		$ 35
Effect of forecast revision on estimated project cost (in dollars per share)		$ 0.20
Government Segment | Consolidated revenue | Customer concentration
Segment Reporting Information [Line Items]
Concentration risk (as a percentage)		16.00%	21.00%	18.00%
Other | JGC Holdings Corporation, GS Energy And IHI Corporation | Reportable segments | NuScale
Segment Reporting Information [Line Items]
Capital contributions by NCI			$ 193	$ 9

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