| Component: (Network and Table) | |
|---|---|
| Network | 2418404 - Disclosure - Product and Geographic Information (Schedule of Long-Lived Assets By Geographic Location) (Details) (http://www.sjm.com/role/ProductAndGeographicInformationScheduleOfLongLivedAssetsByGeographicLocationDetails) |
| Table | Schedule of Revenues from External Customers and Long-Lived Assets [Table] |
| Reporting Entity [Axis] | 0000203077 (http://www.sec.gov/CIK) |
| Revenues from External Customers and Long-Lived Assets [Line Items] | Period [Axis] | ||||||||
|---|---|---|---|---|---|---|---|---|---|
2016-01-02 | 2015-01-03 | 2013-12-28 | |||||||
| Geographical [Axis] | Geographical [Axis] | Geographical [Axis] | |||||||
| UNITED STATES | Other Countries [Member] | Geographical [Domain] | UNITED STATES | Other Countries [Member] | Geographical [Domain] | UNITED STATES | Other Countries [Member] | Geographical [Domain] | |
Long-Lived Assets | |||||||||