Notes Payable, Long-Term Debt and Capital Lease Obligations (Additional Information) (Details 3) $ in Millions	12 Months Ended
Aug. 31, 2017 USD ($)
Debt Instrument [Line Items]
Term loan facility maximum borrowing capacity	$ 500.0
Interest rate above federal funds rate	0.50%
Interest rate above one month LIBOR rate	1.00%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility initiation amount	$ 1,500.0
Unused borrowing capacity under revolving credit facilities, net of letters of credit	$ 1,900.0
Term loan facility [Member]
Debt Instrument [Line Items]
Interest rate on debt instruments	2.60%
8.250% Senior Notes
Debt Instrument [Line Items]
Senior Notes, stated interest rate	8.25%
5.625% Senior Notes
Debt Instrument [Line Items]
Senior Notes, stated interest rate	5.625%
4.700% Senior Notes
Debt Instrument [Line Items]
Senior Notes, stated interest rate	4.70%
4.900% Senior Notes
Debt Instrument [Line Items]
Senior Notes, stated interest rate	4.90%
Senior Notes, face amount	$ 300.0
Minimum \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate above base rate	0.00%
Interest rate above Eurocurrency rate	1.00%
Interest rate on debt instruments	2.40%
Minimum \| Term loan facility [Member]
Debt Instrument [Line Items]
Interest rate above base rate	0.125%
Interest rate above Eurocurrency rate	1.125%
Minimum \| Additional Borrowings Under Loans [Member]
Debt Instrument [Line Items]
Interest rate on debt instruments	0.00%
Minimum \| Foreign Line of Credit
Debt Instrument [Line Items]
Interest rate on debt instruments	1.20%
Maximum \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility maximum borrowing capacity	$ 2,000.0
Interest rate above base rate	0.65%
Interest rate above Eurocurrency rate	1.65%
Interest rate on debt instruments	4.40%
Maximum \| Term loan facility [Member]
Debt Instrument [Line Items]
Interest rate above base rate	1.00%
Interest rate above Eurocurrency rate	2.00%
Maximum \| Additional Borrowings Under Loans [Member]
Debt Instrument [Line Items]
Interest rate on debt instruments	10.00%
Maximum \| Foreign Line of Credit
Debt Instrument [Line Items]
Interest rate on debt instruments	3.50%

Incremental interest charged on the credit facility above the Eurocurrency borrowing rate.

No definition available.

Name:	jbl_InterestRateAboveEurocurrencyRate
Namespace Prefix:	jbl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage above the federal funds borrowing rate associated with the base rate.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Percentage above one-month London Interbank Offered Rate or "LIBOR" associated with the base rate.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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Period Type:	instant

- Definition

Amount of current borrowing capacity under the term loan facility, but without considering any amounts currently outstanding under the facility.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Period Type:	instant

- 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

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Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
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- Details

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