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Business Segment Information (Narrative) (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 segment process_technology area | Jan. 01, 2021 segment | Dec. 31, 2020 segment
Segment Reporting Information [Line Items] |  |  |
Core business segments, number | 2 | 2 | 3
Non-core business segments, number | 1 |  |
Sustainable Technology Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of process technologies | process_technology | 70 |  |
Number of primary areas | area | 4 |  |

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- Definition Business Segment, Number of Core Business Segments + References No definition available. + Details
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- Definition Business Segment, Number of Non-core Business Segment + References No definition available. + Details
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Namespace Prefix: | kbr_
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Balance Type: | na
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- Definition Number Of Primary Areas + References No definition available. + Details
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- Definition Number Of Process Technologies + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |