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Employee Benefit And Retirement Plans (Narrative) (Details) - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Nov. 30, 2022 | Nov. 30, 2021 | Nov. 30, 2020
Employee Benefit And Retirement Plans [Line Items] |  |  |
Unrecognized actuarial losses and unrecognized prior service credit, before tax | $ 98.8 |  |
Unrecognized actuarial losses and unrecognized prior service credit, net of tax | 78.5 | $ 193.6 |
Fair value of plan assets at beginning of year | 0.0 | 0.0 | $ 0.0
Non-current pension asset | 123.5 | 61.6 |
Dividends paid | $ 396.7 | $ 363.3 | 330.1
Assumed annual increase in cost of health care benefits | 7.50% | 6.30% |
Ultimate health care cost trend rate | 4.50% | 4.50% |
Long-term Debt, Fair Value | $ 3,600.9 | $ 4,921.5 |
Dividends | 402.3 | 371.5 | 338.5
Payments of Ordinary Dividends | 0.8 | 0.7 |
Fair Value, Inputs, Level 2 [Member] |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Long-term Debt, Fair Value | $ 176.1 | 199.2 |
Defined Contribution Retirement Plans [Member] |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Percentage of participant contribution considered for first condition of plan | 100.00% |  |
Percentage of participant salary under first condition of plan | 3.00% |  |
Percentage of participant contribution considered for second condition of plan | 66.70% |  |
Percentage of participant salary under second condition of plan | 3.00% |  |
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage | 3.00% |  |
Defined Contribution Plan, Cost | $ 30.5 | 29.8 | 30.8
Dividends paid | 3.9 |  |
Supplemental Employee Retirement Plan [Member] |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Benefit obligation | 80.1 | 104.2 |
Non-current pension asset | 74.1 | 90.3 |
Other Postretirement Benefits [Member] |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Benefit obligation | $ 52.9 | $ 65.9 | 70.7
Age after which employees retire | 55 years |  |
Minimum number of years in service | 5 years |  |
Assumed discount rate | 5.00% | 2.70% |
Employer contributions | $ 4.0 | $ 4.1 |
U.S. Equity Securities [Member] |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Fair value of McCormick stock held in plan assets | $ 46.2 | $ 47.7 |
Number of shares of McCormick stock held in plan assets | 0.6 | 0.6 |
Percentage of pension plan assets in equity securities | 7.00% | 6.30% |
Defined Benefit Plan, Equity Securities [Member] | Defined Contribution Retirement Plans [Member] |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Fair value of McCormick stock held in plan assets | $ 215.4 |  |
Number of shares of McCormick stock held in plan assets | 2.6 |  |
United States |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Unrecognized actuarial losses and unrecognized prior service credit, net of tax | $ 73.2 | $ 167.8 |
Benefit obligation | 687.5 | 921.5 | 958.0
Fair value of plan assets at beginning of year | 657.7 | 754.0 | 688.2
Accrued liability related to the plan | 85.2 | 167.5 |
Non-current pension asset | 55.4 | 0.0 |
Funded status | (29.8) | (167.5) |
Accumulated benefit obligation | $ 683.2 | $ 912.3 |
Percentage of pension plan assets in equity securities | 100.00% | 100.00% |
Employer contributions | $ 10.4 | $ 13.4 |
Defined Benefit Plan, Expected Return (Loss) on Plan Assets | 42.8 | 41.1 | 40.6
United States | Fair Value, Inputs, Level 2 [Member] |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Fair value of plan assets at beginning of year | 189.2 | 213.9 |
United States | U.S. Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Fair value of plan assets at beginning of year | 115.1 | 143.2 |
Foreign Plan [Member] |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Unrecognized actuarial losses and unrecognized prior service credit, net of tax | 20.7 | 32.2 |
Benefit obligation | 220.1 | 354.7 | 371.7
Fair value of plan assets at beginning of year | 275.1 | 398.4 | 368.7
Accrued liability related to the plan | 13.1 | 18.0 |
Non-current pension asset | 68.1 | 61.6 |
Funded status | 55.0 | 43.7 |
Accumulated benefit obligation | $ 217.9 | $ 351.3 |
Percentage of pension plan assets in equity securities | 100.00% | 100.00% |
Employer contributions | $ 1.0 | $ 1.6 |
Defined Benefit Plan, Expected Return (Loss) on Plan Assets | 12.3 | 14.0 | $ 15.3
Foreign Plan [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |
Fair value of plan assets at beginning of year | $ 273.9 | $ 396.8 |

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