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Operating Information by Segment and Geographic Area - Total Assets (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total assets	$ 6,700	$ 6,973
Reportable Segments | Energy Solutions
Segment Reporting Information [Line Items]
Total assets	1,085	1,053
Reportable Segments | Urban Solutions
Segment Reporting Information [Line Items]
Total assets	1,350	1,211
Reportable Segments | Mission Solutions
Segment Reporting Information [Line Items]
Total assets	573	577
Reportable Segments | Other
Segment Reporting Information [Line Items]
Total assets	267	509
Corporate
Segment Reporting Information [Line Items]
Total assets	$ 3,425	$ 3,623

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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