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Employee Benefit And Retirement Plans (Narrative) (Details) - USD ($) shares in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Nov. 30, 2020 | Nov. 30, 2019 | Nov. 30, 2018 | Feb. 28, 2019
Employee Benefit And Retirement Plans [Line Items] |  |  |  |
Unrecognized actuarial losses and unrecognized prior service credit, before tax | $ 383.4 |  |  |
Unrecognized actuarial losses and unrecognized prior service credit, net of tax | 296.3 | $ 234.0 |  |
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax |  |  |  | $ 18.0
Expected actuarial losses, net of prior service credit, before tax | 13.5 |  |  |
Expected actuarial losses, net of prior service credit, net of tax | 9.7 |  |  |
Amortization of net actuarial loss | 13.2 |  |  |
Amortization of prior service costs credits | 0.3 |  |  |
Fair value of plan assets at beginning of year | 0.0 | 0.0 | $ 0.0 |
Dividends paid | $ 330.1 | $ 302.2 | 273.4 |
Assumed annual increase in cost of health care benefits | 6.80% | 6.50% |  |
Ultimate health care cost trend rate | 4.50% | 4.50% |  |
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment |  |  | 17.5 |
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 | $ 30.8 | $ 28.2 | 15.5 |
Dividends paid | 3.8 | 3.9 |  |
Supplemental Employee Retirement Plan [Member] |  |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |  |
Benefit obligation | 110.5 | 105.4 |  |
Non-current pension asset | 86.4 | 85.5 |  |
Other Postretirement Benefits [Member] |  |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |  |
Benefit obligation | $ 70.7 | $ 67.2 | 62.9 |
Age after which employees retire | 55 years |  |  |
Minimum number of years in service | 5 years |  |  |
Assumed discount rate | 2.30% | 3.10% |  |
Employer contributions | $ 4.3 | $ 3.9 |  |
U.S. Equity Securities [Member] |  |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |  |
Fair value of McCormick stock held in plan assets | $ 50.6 | $ 64.4 |  |
Number of shares of McCormick stock held in plan assets | 0.6 | 0.8 |  |
Percentage of pension plan assets in equity securities | 7.40% | 9.60% |  |
Defined Benefit Plan, Equity Securities, US [Member] |  |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |  |
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held | $ 0.9 | $ 0.9 |  |
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 | $ 267.3 |  |  |
Number of shares of McCormick stock held in plan assets | 2.9 |  |  |
United States |  |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |  |
Unrecognized actuarial losses and unrecognized prior service credit, net of tax | $ 235.5 | 183.9 |  |
Benefit obligation | 958.0 | 884.8 | 752.6 |
Fair value of plan assets at beginning of year | 688.2 | 671.9 | 640.4 |
Accrued liability related to the plan | 269.8 | 212.9 |  |
Non-current pension asset | 0.0 | 0.0 |  |
Funded status | (269.8) | (212.9) |  |
Accumulated benefit obligation | $ 945.1 | $ 874.8 |  |
Percentage of pension plan assets in equity securities | 100.00% | 100.00% |  |
Employer contributions | $ 10.4 | $ 8.2 |  |
Defined Benefit Plan, Expected Return (Loss) on Plan Assets | 40.6 | 42.5 | 43.4 |
Foreign Plan [Member] |  |  |  |
Employee Benefit And Retirement Plans [Line Items] |  |  |  |
Unrecognized actuarial losses and unrecognized prior service credit, net of tax | 63.7 | 60.1 |  |
Benefit obligation | 371.7 | 345.6 | 292.9 |
Fair value of plan assets at beginning of year | 368.7 | 340.9 | 306.5 |
Accrued liability related to the plan | 22.6 | 20.3 |  |
Non-current pension asset | 19.6 | 15.6 |  |
Funded status | (3.0) | (4.7) |  |
Accumulated benefit obligation | $ 367.9 | $ 342.2 |  |
Percentage of pension plan assets in equity securities | 100.00% | 100.00% |  |
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment |  |  | 17.5 |
Employer contributions | $ 1.5 | $ 3.2 |  |
Defined Benefit Plan, Expected Return (Loss) on Plan Assets | $ 15.3 | $ 16.4 | $ 16.6 |

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- Definition Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109237824&loc=d3e1703-114919 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 + Details
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- Definition Number of shares of employer stock in which defined benefit plan asset is invested. Includes, but is not limited to, stock issued or managed by related party of employer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (n) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Ultimate trend rate for health care cost for defined benefit postretirement plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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