XML 88 R69.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Financing Arrangements , Long-term Debt (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Apr. 28, 2017 USD ($) | Mar. 31, 2017 USD ($) tranche | Apr. 29, 2016 USD ($)
Debt Instrument [Line Items] |  |  |
Debt premium, net | $ 135,000,000 |  | $ 214,000,000
Deferred financing costs | (128,000,000) |  | (138,000,000)
Long-term debt | $ 25,921,000,000 |  | 30,109,000,000
Three-year term loan |  |  |
Debt Instrument [Line Items] |  |  |
Debt term | 3 years |  |
Long-term debt | $ 0 |  | $ 3,000,000,000
Effective Interest Rate | 0.00% |  | 1.12%
Senior notes | 6.000 percent ten-year 2008 CIFSA senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 6.00% |  |
Debt term | 10 years |  |
Long-term debt | $ 0 |  | $ 1,150,000,000
Effective Interest Rate | 1.41% |  | 1.41%
Senior notes | 1.375 percent five-year 2013 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 1.375% |  |
Debt term | 5 years |  |
Long-term debt | $ 0 |  | $ 1,000,000,000
Effective Interest Rate | 1.41% |  | 1.41%
Senior notes | 1.500 percent three-year 2015 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 1.50% |  |
Debt term | 3 years |  |
Long-term debt | $ 0 |  | $ 1,000,000,000
Effective Interest Rate | 1.59% |  | 1.59%
Senior notes | 5.600 percent ten-year 2009 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 5.60% |  |
Debt term | 10 years |  |
Long-term debt | $ 400,000,000 |  | $ 400,000,000
Effective Interest Rate | 5.61% |  | 5.61%
Senior notes | 1.700 percent two-year 2017 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 1.70% | 1.70% |
Debt term | 2 years |  |
Long-term debt | $ 1,000,000,000 |  | $ 0
Effective Interest Rate | 1.74% |  | 0.00%
Face value |  | $ 1,000,000,000 |
Senior notes | 4.450 percent ten-year 2010 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.45% |  |
Debt term | 10 years |  |
Long-term debt | $ 766,000,000 |  | $ 766,000,000
Effective Interest Rate | 4.47% |  | 4.47%
Senior notes | 2.500 percent five-year 2015 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 2.50% |  |
Debt term | 5 years |  |
Long-term debt | $ 2,500,000,000 |  | $ 2,500,000,000
Effective Interest Rate | 2.52% |  | 2.52%
Senior notes | Floating rate five-year 2015 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt term | 5 years |  |
Long-term debt | $ 500,000,000 |  | $ 500,000,000
Effective Interest Rate | 1.98% |  | 1.04%
Senior notes | 4.200 percent ten-year 2010 CIFSA senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.20% |  |
Debt term | 10 years |  |
Long-term debt | $ 600,000,000 |  | $ 600,000,000
Effective Interest Rate | 2.22% |  | 2.22%
Senior notes | 4.125 percent ten-year 2011 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.125% |  | 4.125%
Debt term | 10 years |  |
Long-term debt | $ 500,000,000 |  | $ 500,000,000
Effective Interest Rate | 4.19% |  | 4.19%
Face value | $ 500,000,000 |  | $ 500,000,000
Senior notes | 3.125 percent ten-year 2012 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.125% |  | 3.125%
Debt term | 10 years |  |
Long-term debt | $ 675,000,000 |  | $ 675,000,000
Effective Interest Rate | 3.16% |  | 3.16%
Face value | $ 675,000,000 |  | $ 675,000,000
Senior notes | 3.150 percent seven-year 2015 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.15% |  |
Debt term | 7 years |  |
Long-term debt | $ 2,500,000,000 |  | $ 2,500,000,000
Effective Interest Rate | 3.18% |  | 3.18%
Senior notes | 3.200 percent ten-year 2012 CIFSA senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.20% |  |
Debt term | 10 years |  |
Long-term debt | $ 650,000,000 |  | $ 650,000,000
Effective Interest Rate | 2.66% |  | 2.66%
Senior notes | 2.750 percent ten-year 2013 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 2.75% |  |
Debt term | 10 years |  |
Long-term debt | $ 530,000,000 |  | $ 530,000,000
Effective Interest Rate | 2.78% |  | 2.78%
Senior notes | 2.950 percent ten-year 2013 CIFSA senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 2.95% |  |
Debt term | 10 years |  |
Long-term debt | $ 310,000,000 |  | $ 310,000,000
Effective Interest Rate | 2.67% |  | 2.67%
Senior notes | 3.625 percent ten-year 2014 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.625% |  |
Debt term | 10 years |  |
Long-term debt | $ 850,000,000 |  | $ 850,000,000
Effective Interest Rate | 3.65% |  | 3.65%
Senior notes | 3.500 percent ten-year 2015 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.50% |  |
Debt term | 10 years |  |
Long-term debt | $ 4,000,000,000 |  | $ 4,000,000,000
Effective Interest Rate | 3.61% |  | 3.61%
Senior notes | 3.350 percent ten-year 2017 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 3.35% | 3.35% |
Debt term | 10 years |  |
Long-term debt | $ 850,000,000 |  | $ 0
Effective Interest Rate | 3.35% |  | 0.00%
Face value |  | $ 850,000,000 |
Senior notes | 4.375 percent twenty-year 2015 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.375% |  |
Debt term | 20 years |  |
Long-term debt | $ 2,382,000,000 |  | $ 2,382,000,000
Effective Interest Rate | 4.44% |  | 4.44%
Senior notes | 6.550 percent thirty-year 2007 CIFSA senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 6.55% |  |
Debt term | 30 years |  |
Long-term debt | $ 374,000,000 |  | $ 374,000,000
Effective Interest Rate | 3.75% |  | 3.75%
Senior notes | 6.500 percent thirty-year 2009 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 6.50% |  |
Debt term | 30 years |  |
Long-term debt | $ 300,000,000 |  | $ 300,000,000
Effective Interest Rate | 6.52% |  | 6.52%
Senior notes | 5.550 percent thirty-year 2010 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 5.55% |  |
Debt term | 30 years |  |
Long-term debt | $ 500,000,000 |  | $ 500,000,000
Effective Interest Rate | 5.56% |  | 5.56%
Senior notes | 4.500 percent thirty-year 2012 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.50% |  |
Debt term | 30 years |  |
Long-term debt | $ 400,000,000 |  | $ 400,000,000
Effective Interest Rate | 4.51% |  | 4.51%
Senior notes | 4.000 percent thirty-year 2013 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.00% |  |
Debt term | 30 years |  |
Long-term debt | $ 325,000,000 |  | $ 325,000,000
Effective Interest Rate | 4.12% |  | 4.12%
Senior notes | 4.625 percent thirty-year 2014 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.625% |  |
Debt term | 30 years |  |
Long-term debt | $ 650,000,000 |  | $ 650,000,000
Effective Interest Rate | 4.67% |  | 4.67%
Senior notes | 4.625 percent thirty-year 2015 senior notes |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate | 4.625% | 4.625% |
Debt term | 30 years |  |
Long-term debt | $ 4,150,000,000 |  | $ 4,000,000,000
Effective Interest Rate | 4.62% |  | 4.64%
Face value |  | $ 4,000,000,000 |
Senior notes | 2017 Senior Notes |  |  |
Debt Instrument [Line Items] |  |  |
Number of tranches | tranche |  | 2 |
Face value |  | $ 1,850,000,000 |
Senior notes | Senior Notes 2017 Due 2045 |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate |  | 4.625% |
Face value |  | $ 150,000,000 |
Interest rate swaps |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 40,000,000 |  | $ 89,000,000
Capital lease obligations |  |  |
Debt Instrument [Line Items] |  |  |
Capital lease obligations | $ 23,000,000 |  | $ 26,000,000
Effective Interest Rate | 4.81% |  | 4.66%
Bank borrowings |  |  |
Debt Instrument [Line Items] |  |  |
Long-term debt | $ 139,000,000 |  | $ 56,000,000
Effective Interest Rate | 1.28% |  | 6.46%

X
- Definition Debt Instrument, Number of Tranches + References No definition available. + Details
Name: | mdt_DebtInstrumentNumberofTranches
Namespace Prefix: | mdt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 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(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: 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(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_CapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
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 Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of debt premium to be amortized after one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentUnamortizedPremiumNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: 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(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: 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(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: 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_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_DebtInstrumentAxis=mdt_ThreeYearTermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotesCIFSATenYear20086.000PercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2013Due2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2015Due2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2009Due2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2017Due2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2010Due2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2015Due2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2015Due2020FloatingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotesCIFSA2010Due2015NumberTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2011Due2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2012Due2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2015Due2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotesCIFSA2012Due2022NumberTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2013Due2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotesCIFSA2013Due2023NumberTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2014Due2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2015Due2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2017Due2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2015Due2035Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotesCIFSADue2037Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2009Due2039Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2010Due2040Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2012Due2042Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2013Due2043Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2014Due2044Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2015Due2045Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2017Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mdt_SeniorNotes2017Due2045Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_CapitalLeaseObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableToBanksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |