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Operating Information by Segment and Geographic Area - Total Assets (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total assets	$ 7,163	$ 6,827
Reportable Segments | Energy Solutions
Segment Reporting Information [Line Items]
Total assets	1,259	967
Reportable Segments | Urban Solutions
Segment Reporting Information [Line Items]
Total assets	1,191	1,170
Reportable Segments | Mission Solutions
Segment Reporting Information [Line Items]
Total assets	537	485
Reportable Segments | Other
Segment Reporting Information [Line Items]
Total assets	593	583
Corporate
Segment Reporting Information [Line Items]
Total assets	$ 3,583	$ 3,622

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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