XML 56 R120.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Income Taxes Income Taxes (Summary of Valuation Allowance) (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Valuation Allowance [Line Items] |  |
Net Gross Deferred Asset (Liability) | $ 420 |
Valuation Allowance | (200) | $ (207)
Deferred Tax Assets, Net | 220 | $ 195
United States |  |
Valuation Allowance [Line Items] |  |
Net Gross Deferred Asset (Liability) | 370 |
Valuation Allowance | (156) |
Deferred Tax Assets, Net | 214 |
United Kingdom |  |
Valuation Allowance [Line Items] |  |
Net Gross Deferred Asset (Liability) | (6) |
Valuation Allowance | 0 |
Deferred Tax Liability, Net | (6) |
Australia |  |
Valuation Allowance [Line Items] |  |
Net Gross Deferred Asset (Liability) | 12 |
Valuation Allowance | 0 |
Deferred Tax Assets, Net | 12 |
Canada |  |
Valuation Allowance [Line Items] |  |
Net Gross Deferred Asset (Liability) | 23 |
Valuation Allowance | (22) |
Deferred Tax Assets, Net | 1 |
Other countries |  |
Valuation Allowance [Line Items] |  |
Net Gross Deferred Asset (Liability) | 21 |
Valuation Allowance | (22) |
Deferred Tax Liability, Net | $ (1) |

X
- Definition Gross Assets net of Gross Liabilities before valuation allowance + References No definition available. + Details
Name: | kbr_GrossAssetsLiabilitiesNet
Namespace Prefix: | kbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsLiabilitiesNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=116821951&loc=d3e31931-109318 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_ValuationAllowanceLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_GB
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_AU
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=kbr_OtherCountriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |