Operating Information by Segment and Geographic Area - Other Segment Profit (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Operating profit (loss)	$ 96	$ (32)
Reportable segments | Continuing Operations
Segment Reporting Information [Line Items]
Operating profit (loss)	115	60
Reportable segments | Other | Continuing Operations
Segment Reporting Information [Line Items]
Operating profit (loss)	(12)	(16)
Reportable segments | Other | Continuing Operations | NuScale
Segment Reporting Information [Line Items]
Operating profit (loss)	(21)	(16)
Reportable segments | Other | Continuing Operations | Stork
Segment Reporting Information [Line Items]
Operating profit (loss)	6	3
Reportable segments | Other | Continuing Operations | AMECO
Segment Reporting Information [Line Items]
Operating profit (loss)	$ 3	$ (3)