Note 8 Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 02, 2021	Oct. 03, 2020	Sep. 28, 2019
Leases [Abstract]
Operating Leases, Rent Expense, Net	$ 21	$ 21	$ 26

Rental expense for the reporting period incurred under operating leases, net of sublease income.

No definition available.

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