Employee Benefit And Retirement Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Employee Benefit And Retirement Plans [Line Items]
Loss on voluntary pension settlement	$ 0	$ 15.3	$ 0
Unrecognized actuarial losses and unrecognized prior service credit, before tax	330.0
Unrecognized actuarial losses and unrecognized prior service credit, net of tax	224.0	167.7
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	327.9
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	2.1
Expected actuarial losses, net of prior service credit, before tax	23.4
Expected actuarial losses, net of prior service credit, net of tax	15.7
Amortization of net actuarial loss	23.1
Amortization of prior service costs	0.3
Dividends paid	192.4	179.9	164.7
Assumed annual increase in cost of health care benefits	7.00%	7.00%
Ultimate health care cost trend rate	5.00%	5.00%
Ultimate health care cost trend rate, year	2022	2021
United States Pension Plans [Member]
Employee Benefit And Retirement Plans [Line Items]
Loss on voluntary pension settlement	0	15.3	0
Defined Benefit Plan, Settlements, Plan Assets	0	63.3
Unrecognized actuarial losses and unrecognized prior service credit, net of tax	144.0	95.5
Amortization of net actuarial loss	11.8	29.5	18.1
Amortization of prior service costs	0	0	0.1
Benefit obligation	728.4	607.7	735.2
Accrued liability related to the plan	152.1	81.2
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent		25.8
Accumulated benefit obligation	636.7	532.8
Percentage of pension plan assets in equity securities	100.00%	100.00%
International Pension Plans [Member]
Employee Benefit And Retirement Plans [Line Items]
Loss on voluntary pension settlement	0	0	0
Unrecognized actuarial losses and unrecognized prior service credit, net of tax	82.5	74.1
Amortization of net actuarial loss	4.6	5.6	3.5
Amortization of prior service costs	0.3	0.4	0.4
Benefit obligation	341.6	304.9	300.8
Accrued liability related to the plan	36.6	25.0
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	0.3
Accumulated benefit obligation	310.9	276.5
Percentage of pension plan assets in equity securities	100.00%	100.00%
Supplemental Employee Retirement Plan [Member]
Employee Benefit And Retirement Plans [Line Items]
Benefit obligation	91.3	81.2
Accrued liability related to the plan	86.7	76.8
Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent	79.6	74.4
Fair value of McCormick stock held in plan assets	164.9
Number of shares of McCormick stock held in plan assets	2.3
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	50.00%
Percentage of participant salary under second condition of plan	2.00%
401(k) plan expense	7.7	7.7	7.4
Dividends paid	3.5
Other Postretirement Benefits [Member]
Employee Benefit And Retirement Plans [Line Items]
Amortization of net actuarial loss	0	1.4	0
Amortization of prior service costs	0	(1.2)	(4.0)
Benefit obligation	96.3	94.9	112.8
Age after which employees retire	55 years
Minimum number of years in service	5 years
Assumed discount rate	4.00%	4.70%
U.S. Equity Securities [Member]
Employee Benefit And Retirement Plans [Line Items]
Fair value of McCormick stock held in plan assets	33.0	31.6
Number of shares of McCormick stock held in plan assets	0.5	0.5
Percentage of pension plan assets in equity securities	5.70%	5.70%
Dividends paid	$ 0.7	$ 0.6