XML 53 R41.htm IDEA: XBRL DOCUMENT v3.25.2

Business Segment Information (Narrative) (Details)	6 Months Ended
	Jul. 04, 2025 segment vertical process_technology
Segment Reporting Information [Line Items]
Core business segments, number	2
Non-core business segments, number	1
Sustainable Technology Solutions
Segment Reporting Information [Line Items]
Number of process technologies (over) | process_technology	85
Number of primary areas | vertical	4

X

- Definition

Business Segment, Number of Core Business Segments

+ References

No definition available.

+ Details

Name:	kbr_BusinessSegmentNumberOfCoreBusinessSegments
Namespace Prefix:	kbr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Business Segment, Number of Non-core Business Segments

+ References

No definition available.

+ Details

Name:	kbr_BusinessSegmentNumberOfNonCoreBusinessSegments
Namespace Prefix:	kbr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of Primary Areas

+ References

No definition available.

+ Details

Name:	kbr_NumberOfPrimaryAreas
Namespace Prefix:	kbr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of Process Technologies

+ References

No definition available.

+ Details

Name:	kbr_NumberOfProcessTechnologies
Namespace Prefix:	kbr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- 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

Name:	us-gaap_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=kbr_SustainableTechnologySolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: