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v3.21.1

Guarantees Guarantees (Narrative) (Details) | 3 Months Ended
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Apr. 02, 2021 USD ($)
Schedule of Fiscal Years [Line Items] |
Indemnifications obligations to Officers and Directors | $ 0
Intellectual property indemnification obligations | $ 0
Minimum |
Schedule of Fiscal Years [Line Items] |
Product warranty period term | 1 year
Maximum |
Schedule of Fiscal Years [Line Items] |
Product warranty period term | 5 years

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- Definition Indemnifications obligations to Officers and Directors + References No definition available. + Details
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Period Type: | instant

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

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Namespace Prefix: | stx_
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Balance Type: | na
Period Type: | duration

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- Definition [Line Items] for Schedule of Fiscal Years [Table] + References No definition available. + Details
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Balance Type: | na
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |