| Document and Entity Information | Sep. 10, 2021 |
| Document And Entity Information [Line Items] | |
| Entity Registrant Name | Medtronic plc |
| Amendment Flag | false |
| Entity Central Index Key | 0001613103 |
| Document Type | 8-K |
| Document Period End Date | Sep. 10, 2021 |
| Entity Incorporation State Country Code | L2 |
| Entity File Number | 1-36820 |
| Entity Tax Identification Number | 98-1183488 |
| Entity Address, Address Line One | 20 On Hatch |
| Entity Address, Address Line Two | Lower Hatch Street |
| Entity Address, City or Town | Dublin 2 |
| Entity Address, Country | IE |
| Entity Address, Postal Zip Code | D02 XH02 |
| City Area Code | 353 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 |
| Common Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Ordinary Shares, $0.0001 par value per share |
| Trading Symbol | MDT |
| Security Exchange Name | NYSE |
| Senior Notes 2019 Due 2022 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 0.00% Senior Notes due 2022 |
| Trading Symbol | MDT/22B |
| Security Exchange Name | NYSE |
| Senior Notes 2019 Due 20230.375 Percent [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 0.375% Senior Notes due 2023 |
| Trading Symbol | MDT/23B |
| Security Exchange Name | NYSE |
| Senior Notes 2020 Due 2023 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 0.000% Senior Notes due 2023 |
| Trading Symbol | MDT/23C |
| Security Exchange Name | NYSE |
| Senior Notes 2019 Due 2025 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 0.25% Senior Notes due 2025 |
| Trading Symbol | MDT/25 |
| Security Exchange Name | NYSE |
| Senior Notes 2020 Due 2025 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 0.000% Senior Notes due 2025 |
| Trading Symbol | MDT/25A |
| Security Exchange Name | NYSE |
| Senior Notes 2019 Due 2027 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 1.125% Senior Notes due 2027 |
| Trading Symbol | MDT/27 |
| Security Exchange Name | NYSE |
| Senior Notes 2020 Due 2028 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 0.375% Senior Notes due 2028 |
| Trading Symbol | MDT/28 |
| Security Exchange Name | NYSE |
| Senior Notes 2019 Due 20311.625 Percent [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 1.625% Senior Notes due 2031 |
| Trading Symbol | MDT/31 |
| Security Exchange Name | NYSE |
| Senior Notes 2019 Due 20311.00 Percent [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 1.00% Senior Notes due 2031 |
| Trading Symbol | MDT/31A |
| Security Exchange Name | NYSE |
| Senior Notes 2020 Due 2032 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 0.750% Senior Notes due 2032 |
| Trading Symbol | MDT/32 |
| Security Exchange Name | NYSE |
| Senior Notes 2019 Due 20392.250 Percent [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 2.250% Senior Notes due 2039 |
| Trading Symbol | MDT/39A |
| Security Exchange Name | NYSE |
| Senior Notes 2019 Due 20391.50 Percent [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 1.50% Senior Notes due 2039 |
| Trading Symbol | MDT/39B |
| Security Exchange Name | NYSE |
| Senior Notes 2020 Due 2040 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 1.375% Senior Notes due 2040 |
| Trading Symbol | MDT/40A |
| Security Exchange Name | NYSE |
| Senior Notes 2019 Due 2049 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 1.75% Senior Notes due 2049 |
| Trading Symbol | MDT/49 |
| Security Exchange Name | NYSE |
| Senior Notes 2020 Due 2050 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 1.625% Senior Notes due 2050 |
| Trading Symbol | MDT/50 |
| Security Exchange Name | NYSE |
