| Document and Entity Information | Dec. 05, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Dec. 05, 2022 |
| Entity Registrant Name | Linde plc |
| Entity Incorporation State Country Code | L2 |
| Entity File Number | 001-38730 |
| Entity Tax Identification Number | 98-1448883 |
| Entity Address Address Line 1 | 10 Riverview Dr. |
| Entity Address City Or Town | Danbury |
| Entity Address State Or Province | CT |
| Entity Address Country | US |
| Entity Address Postal Zip Code | 06810 |
| City Area Code | 44 |
| Local Phone Number | 1483 242200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Ordinary shares (€0.001 nominal value per share) |
| Trading Symbol | LIN |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001707925 |
| Amendment Flag | false |
