XML 89 R76.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Fair Value (Schedule of Carrying Values and Estimated Fair Values of Debt Instruments) (Details) - USD ($) $ in Millions | Jun. 30, 2017 | Feb. 03, 2017 | Jul. 01, 2016 | May 14, 2015 | Dec. 02, 2014 | May 28, 2014 | Nov. 05, 2013 | May 22, 2013 | May 18, 2011
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Debt issuance costs | $ 44 |  | $ 39 |  |  |  |  |  |
Long-term debt, net of debt issuance costs | $ 5,021 |  | $ 4,091 |  |  |  |  |  |
Senior Notes 3.75 Percent due November 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 3.75% |  | 3.75% |  |  |  | 3.75% |  |
Senior Notes 7.00 Percent due November 2021 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  |  | 7.00% |  |  |  |  |  | 7.00%
Senior Notes 4.250 Percent Due March 2022 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 4.25% |  | 4.25% |  |  |  |  |  |
Senior Notes 4.75% Due June 2023 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 4.75% |  | 4.75% |  |  |  |  |  |
Senior Notes 4.75 Percent Due June 2023 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  |  |  |  |  |  |  | 4.75% |
Senior Notes 4.875 Percent Due March 2024 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 4.875% | 4.875% | 4.875% |  |  |  |  |  |
Senior Notes 4.75 Percent Due January 2025 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 4.75% |  | 4.75% |  |  | 4.75% |  |  |
Senior Note 4.875 percent Due June 2027 [Domain] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 4.875% |  | 4.875% | 4.875% |  |  |  |  |
Senior note 5.75 percent due December 2034 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 5.75% |  | 5.75% |  | 5.75% |  |  |  |
Carrying Amount [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | $ 5,065 |  | $ 4,130 |  |  |  |  |  |
Long-term debt, net of debt issuance costs | 5,021 |  | 4,091 |  |  |  |  |  |
Carrying Amount [Member] | Senior Notes 3.75 Percent due November 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 710 |  | 800 |  |  |  |  |  |
Carrying Amount [Member] | Senior Notes 7.00 Percent due November 2021 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 0 |  | 158 |  |  |  |  |  |
Carrying Amount [Member] | Senior Notes 4.250 Percent Due March 2022 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 748 |  | 0 |  |  |  |  |  |
Carrying Amount [Member] | Senior Notes 4.75 Percent Due June 2023 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 951 |  | 990 |  |  |  |  |  |
Carrying Amount [Member] | Senior Notes 4.875 Percent Due March 2024 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 497 |  | 0 |  |  |  |  |  |
Carrying Amount [Member] | Senior Notes 4.75 Percent Due January 2025 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 975 |  | 995 |  |  |  |  |  |
Carrying Amount [Member] | Senior Note 4.875 percent Due June 2027 [Domain] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 695 |  | 698 |  |  |  |  |  |
Carrying Amount [Member] | Senior note 5.75 percent due December 2034 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 489 |  | 489 |  |  |  |  |  |
Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 5,159 |  | 3,491 |  |  |  |  |  |
Long-term debt, net of debt issuance costs | 5,159 |  | 3,491 |  |  |  |  |  |
Estimate of Fair Value Measurement [Member] | Senior Notes 3.75 Percent due November 2018 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 726 |  | 804 |  |  |  |  |  |
Estimate of Fair Value Measurement [Member] | Senior Notes 7.00 Percent due November 2021 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 0 |  | 164 |  |  |  |  |  |
Estimate of Fair Value Measurement [Member] | Senior Notes 4.250 Percent Due March 2022 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 765 |  | 0 |  |  |  |  |  |
Estimate of Fair Value Measurement [Member] | Senior Notes 4.75 Percent Due June 2023 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 987 |  | 857 |  |  |  |  |  |
Estimate of Fair Value Measurement [Member] | Senior Notes 4.875 Percent Due March 2024 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 511 |  | 0 |  |  |  |  |  |
Estimate of Fair Value Measurement [Member] | Senior Notes 4.75 Percent Due January 2025 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 984 |  | 795 |  |  |  |  |  |
Estimate of Fair Value Measurement [Member] | Senior Note 4.875 percent Due June 2027 [Domain] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | 698 |  | 514 |  |  |  |  |  |
Estimate of Fair Value Measurement [Member] | Senior note 5.75 percent due December 2034 [Member] |  |  |  |  |  |  |  |  |
Debt Fair Value Disclosures |  |  |  |  |  |  |  |  |
Current and noncurrent debt including short-term borrowings | $ 488 |  | $ 357 |  |  |  |  |  |

X
- Definition Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_DebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DeferredFinanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=stx_SeniorNotes3.75PercentdueNovember2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=stx_SeniorNotes7.00PercentdueNovember2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=stx_SeniorNotes4.250PercentDueMarch2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=stx_SeniorNotes4.75DueJune2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=stx_SeniorNotes4.75PercentDueJune2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=stx_SeniorNotes4.875PercentDueMarch2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=stx_SeniorNotes4.75PercentDueJanuary2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=stx_SeniorNote4.875percentDueJune2027Domain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=stx_Seniornote5.75percentdueDecember2034Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |