Corporate Information And Statement Of Ifrs Compliance [Abstract]
| Concept |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
|---|---|---|---|---|---|
| Corporate information and statement of IFRS compliance [abstract] | |||||
| Name of reporting entity or other means of identification |
Johnson Matthey plc
|
— | — | — | — |
| Domicile of entity |
England
|
— | — | — | — |
| Legal form of entity |
public company limited by shares
|
— | — | — | — |
| Description of nature of entity's operations and principal activities |
|
— | — | — | — |
| Statement of IFRS compliance [text block] |
|
— | — | — | — |
| Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [text block] | — | — | — | — | — |
| Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [abstract] | |||||
| Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items] | |||||
| Current inventories | — |
1,211,000,000
GBP
|
1,702,000,000
GBP
|
— | — |
| Disclosure of material accounting policy information [text block] |
|
— | — | — | — |
| Disclosure of objectives, policies and processes for managing capital [text block] |
Capital
|
— | — | — | — |
| Dividends recognised as distributions to owners per share | — | — | — |
0.5500
|
0.5500
|
| Dividends proposed or declared before financial statements authorised for issue but not recognised as distribution to owners |
0.2200
GBP
|
— | — |
0.2200
GBP
|
— |