Document and Entity Information |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Document Information [Line Items] | |
| Document Type | 11-K |
| Document Period End Date | Dec. 31, 2025 |
| Entity Registrant Name | MAGNA INTERNATIONAL INC. |
| Entity Central Index Key | 0000749098 |
| Amendment Flag | false |
| The Magna Group of Companies Retirement Savings Plans | |
| Document Information [Line Items] | |
| Document Type | 11-K |
| Document Period End Date | Dec. 31, 2025 |
| Amendment Flag | false |