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Defined Benefit Plans - Additional Information (Detail) $ in Millions | 1 Months Ended
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Mar. 31, 2017 USD ($)
Accounting Standards Update 2017-07 [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Reclassifications from operating income to other income | $ 3.9

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- Definition Reclassifications from operating income to other Income. + References No definition available. + Details
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Namespace Prefix: | fbhs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=fbhs_AccountingStandardsUpdate201707Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |