Note 7 Accounts Receivable Sale Program (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 29, 2018	Sep. 30, 2017
Transfer of Financial Assets Accounted for as Sales [Line Items]
Percentage of Face Value of Receivable Sold	100.00%
Accounts Receivable Sold During The Period	$ 917	$ 491
RPA [Member]
Transfer of Financial Assets Accounted for as Sales [Line Items]
Maximum Accounts Receivable Sale Capacity	540
Accounts Receivable Sold and Outstanding	$ 189

Accounts Receivable Sold During The Period

No definition available.

Name:	sanm_AccountsReceivableSoldDuringThePeriod
Namespace Prefix:	sanm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum amount of accounts receivable that can be sold at any point in time under the program.

+ References

No definition available.

+ Details

Name:	sanm_MaximumAccountsReceivableSaleCapacity
Namespace Prefix:	sanm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The price of receivables sold expressed as a percentage of the face value of the receivables

+ References

No definition available.

+ Details

Name:	sanm_PercentageofFaceValueofReceivableSold
Namespace Prefix:	sanm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction, at the date of derecognition.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109247956&loc=SL51823488-111719

+ Details

Name:	us-gaap_TransferOfFinancialAssetsAccountedForAsSalesAmountDerecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

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

- Details

Name:	sanm_SaleofAccountsReceivableAxis=sanm_RPAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: