XML 164 R84.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors (Schedule of Unapproved Change Orders and Claims) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Unapproved Change Orders [Roll Forward] |  |
Amounts included in project estimates-at-completion at January 1, | $ 973 | $ 924
Increase, net of foreign currency effect | 12 | 53
Approved change orders, net of foreign currency effect | (7) | (4)
Amounts included in project estimates-at-completion at December 31, | 978 | 973
Amounts recognized over time based on progress at December 31, | $ 974 | $ 945

X
- Definition Approved Change Orders, Net Of Foreign Currency Effect + References No definition available. + Details
Name: | kbr_ApprovedChangeOrdersNetOfForeignCurrencyEffect
Namespace Prefix: | kbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Unapproved Change Orders And Claims Recorded In Revenues + References No definition available. + Details
Name: | kbr_UnapprovedChangeOrdersAndClaimsRecordedInRevenues
Namespace Prefix: | kbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition unapproved Change Orders [Roll Forward] + References No definition available. + Details
Name: | kbr_UnapprovedChangeOrdersRollForward
Namespace Prefix: | kbr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unapproved Change orders, Increase (Decrease), Including Foreign Currency Effect + References No definition available. + Details
Name: | kbr_UnapprovedChangeordersIncreaseDecreaseIncludingForeignCurrencyEffect
Namespace Prefix: | kbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cost incurred on construction contract for unapproved change order, claim, or similar item subject to uncertainty. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 910 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6471471&loc=d3e48698-109348 + Details
Name: | us-gaap_UnapprovedChangeOrdersAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant