| Cover Document | Nov. 17, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 17, 2020 |
| Entity File Number | 0-23354 |
| Entity Registrant Name | FLEX LTD. |
| Entity Central Index Key | 0000866374 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Incorporation, State or Country Code | U0 |
| Entity Address, Address Line One | 2 Changi South Lane |
| Entity Address, City or Town | Singapore |
| Entity Address, Country | SG |
| Entity Address, Postal Zip Code | 486123 |
| City Area Code | 65 |
| Local Phone Number | 6876-9899 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Ordinary Shares, No Par Value |
| Trading Symbol | FLEX |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
