| Document and Entity Information | Oct. 08, 2024 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Oct. 08, 2024 |
| Entity Registrant Name | MCCORMICK & CO INC |
| Entity Incorporation State Country Code | MD |
| Entity File Number | 001-14920 |
| Entity Tax Identification Number | 52-0408290 |
| Entity Address Address Line 1 | 24 Schilling Road |
| Entity Address Address Line 2 | Suite 1 |
| Entity Address City Or Town | Hunt Valley |
| Entity Address State Or Province | MD |
| Entity Address Postal Zip Code | 21031 |
| City Area Code | 410 |
| Local Phone Number | 771-7301 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0000063754 |
| Common Stock [Member] | |
| Document Information [Line Items] | |
| Security 12b Title | Common Stock |
| Trading Symbol | MKC-V |
| Security Exchange Name | NYSE |
| Nonvoting Common Stock [Member] | |
| Document Information [Line Items] | |
| Security 12b Title | Common Stock Non-Voting |
| Trading Symbol | MKC |
| Security Exchange Name | NYSE |
