| Document And Entity Information | Dec. 06, 2019 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Apr. 26, 2020 |
| Entity Registrant Name | Medtronic plc |
| Entity Incorporation, State or Country Code | L2 |
| Entity File Number | 1-36820 |
| Entity Tax Identification Number | 98-1183488 |
| Entity Address, Address Line One | 20 On Hatch, Lower Hatch Street |
| Entity Address, City or Town | Dublin 2 |
| Entity Address, Country | IE |
| Entity Address, Postal Zip Code | D02 XH02 |
| Country Region | 353 |
| City Area Code | 1 |
| Local Phone Number | 438-1700 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001613103 |
| Ordinary shares, par value $0.0001 per share | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Ordinary shares, par value $0.0001 per share |
| Trading Symbol | MDT |
| Security Exchange Name | NYSE |
| Floating Rate Notes due 2021 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Floating Rate Notes due 2021 |
| Trading Symbol | MDT/21 |
| Security Exchange Name | NYSE |
| 0.000% Senior Notes due 2021 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 0.000% Senior Notes due 2021 |
| Trading Symbol | MDT/21A |
| Security Exchange Name | NYSE |
| 0.000% Senior Notes due 2022 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 0.000% Senior Notes due 2022 |
| Trading Symbol | MDT/22B |
| Security Exchange Name | NYSE |
| 0.375% Senior Notes due 2023 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 0.375% Senior Notes due 2023 |
| Trading Symbol | MDT/23B |
| Security Exchange Name | NYSE |
| 0.25% Senior Notes due 2025 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 0.25% Senior Notes due 2025 |
| Trading Symbol | MDT/25 |
| Security Exchange Name | NYSE |
| 1.125% Senior Notes due 2027 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 1.125% Senior Notes due 2027 |
| Trading Symbol | MDT/27 |
| Security Exchange Name | NYSE |
| 1.625% Senior Notes due 2031 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 1.625% Senior Notes due 2031 |
| Trading Symbol | MDT/31 |
| Security Exchange Name | NYSE |
| 1.00% Senior Notes due 2031 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 1.00% Senior Notes due 2031 |
| Trading Symbol | MDT/31A |
| Security Exchange Name | NYSE |
| 2.250% Senior Notes due 2039 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 2.250% Senior Notes due 2039 |
| Trading Symbol | MDT/39A |
| Security Exchange Name | NYSE |
| 1.50% Senior Notes due 2039 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 1.50% Senior Notes due 2039 |
| Trading Symbol | MDT/39B |
| Security Exchange Name | NYSE |
| 1.75% Senior Notes due 2049 | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | 1.75% Senior Notes due 2049 |
| Trading Symbol | MDT/49 |
| Security Exchange Name | NYSE |
