| Document and Entity Information | Mar. 01, 2023 |
| Entity Addresses [Line Items] | |
| Document Type | 8-K12B |
| Document Period End Date | Mar. 01, 2023 |
| Entity Registrant Name | Linde plc |
| Entity Incorporation, State or Country Code | L2 |
| Entity File Number | 001-38730 |
| Entity Tax Identification Number | 98-1448883 |
| Entity Address, Address Line One | Forge |
| Entity Address, Address Line Two | 43 Church Street West |
| Entity Address, City or Town | Woking, Surrey |
| Entity Address, Country | GB |
| Entity Address, Postal Zip Code | GU21 6HT |
| Country Region | 44 |
| City Area Code | 1483 |
| Local Phone Number | 242200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Ordinary shares (€0.001 nominal value per share) |
| Trading Symbol | LIN |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Current Fiscal Year End Date | --12-31 |
| Amendment Flag | false |
| Entity Central Index Key | 0001707925 |
| Other Address [Member] | |
| Entity Addresses [Line Items] | |
| Entity Address, Address Line One | 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 |
