XML 75 R60.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Business Segment Information Prior Period Adjustment (Details) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2015 USD ($)
Accounting Changes and Error Corrections [Abstract] |
Impact Of Correction of Prior Period Error on Equity in Earnings of Unconsolidated Affiliates | $ 15

X
- Definition Impact Of Correction of Prior Period Error on Equity in Earnings of Unconsolidated Affiliates + References No definition available. + Details
Name: | kbr_ImpactOfCorrectionofPriorPeriodErroronEquityinEarningsofUnconsolidatedAffiliates
Namespace Prefix: | kbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingChangesAndErrorCorrectionsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration