v2.4.0.6

Basis of Presentation and Summary of Significant Accounting Policies (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 30, 2012 week | Apr. 01, 2011 week | Mar. 30, 2012 week | Apr. 01, 2011 week | Jun. 29, 2012 week
Organization and Basis of Presentation and Consolidation |  |  |  |  |
Number of weeks in fiscal year, low end of range |  |  | 52 |  |
Number of weeks in fiscal year, high end of range |  |  | 53 |  |
Number of weeks in quarter | 13 | 13 | 39 | 39 |
Number of weeks in fiscal year |  |  |  |  | 52

X
- Definition Disclosure of the number of weeks of financial results included in the entity's fiscal year. + References No definition available. + Details
Name: | stx_NumberOfWeeksInFiscalYear
Namespace Prefix: | stx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the high end of the range of the number of weeks in certain of the entity's fiscal years. + References No definition available. + Details
Name: | stx_NumberOfWeeksInFiscalYearHighEndOfRange
Namespace Prefix: | stx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the low end of the range of the number of weeks in certain of the entity's fiscal years. + References No definition available. + Details
Name: | stx_NumberOfWeeksInFiscalYearLowEndOfRange
Namespace Prefix: | stx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number of weeks of financial results included in the entity's quarter. + References No definition available. + Details
Name: | stx_NumberOfWeeksInQuarter
Namespace Prefix: | stx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | stx_OrganizationAndBasisOfPresentationAndConsolidationAbstract
Namespace Prefix: | stx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration