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Description of Business and Summary of Significant Accounting Policies (Property, Plant and Equipment, net) (Details) | 12 Months Ended
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Aug. 31, 2018
Buildings | Maximum |
Property, Plant and Equipment [Line Items] |
Estimated Useful Life | 35 years
Machinery and equipment | Maximum |
Property, Plant and Equipment [Line Items] |
Estimated Useful Life | 10 years
Machinery and equipment | Minimum |
Property, Plant and Equipment [Line Items] |
Estimated Useful Life | 2 years
Furniture, fixtures and office equipment |
Property, Plant and Equipment [Line Items] |
Estimated Useful Life | 5 years
Computer hardware and software | Maximum |
Property, Plant and Equipment [Line Items] |
Estimated Useful Life | 7 years
Computer hardware and software | Minimum |
Property, Plant and Equipment [Line Items] |
Estimated Useful Life | 3 years
Transportation equipment |
Property, Plant and Equipment [Line Items] |
Estimated Useful Life | 3 years

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

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=jbl_ComputerHardwareAndSoftwareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_TransportationEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |