Special Charges Special Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended			9 Months Ended	12 Months Ended	3 Months Ended
	Nov. 30, 2014	Aug. 31, 2014	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012	Aug. 31, 2014	Nov. 30, 2015	May 31, 2015
Special Charges [Line Items]
Special charges	$ 2.9	$ 2.3	$ 5.2	$ 25.0	$ 0
Total plan expenses [Member]
Special Charges [Line Items]
Special charges liability	10.0		10.0	18.6
Special charges utilized			(10.7)
2013 Special Charges [Member]
Special Charges [Line Items]
Special charges				25.0
2013 Consumer Special Charges [Member]
Special Charges [Line Items]
Special charges				22.2
2013 Industrial Special Charges [Member]
Special Charges [Line Items]
Special charges				2.8
Employee Severance Charges [Member]
Special Charges [Line Items]
Special charges liability	9.3		9.3	15.9
Special charges			1.1	15.9
Special charges utilized			(7.7)
Asset Impairment [Member]
Special Charges [Line Items]
Special charges				6.4
Other exit costs [Member]
Special Charges [Line Items]
Special charges liability	0.7		0.7	2.7
Special charges			1.0	2.7
Special charges utilized			(3.0)
EMEA
Special Charges [Line Items]
Special charges			2.1
EMEA | Employee Severance Charges [Member]
Special Charges [Line Items]
Special charges			1.1
EMEA | Other exit costs [Member]
Special Charges [Line Items]
Special charges			1.0
EMEA | Cash Expenditures [Member]
Special Charges [Line Items]
Special charges			11.0
EMEA | Annual Cost Savings [Member]
Special Charges [Line Items]
Special charges						10.0
UNITED STATES
Special Charges [Line Items]
Special charges	1.1
UNITED STATES | Cash Expenditures [Member]
Special Charges [Line Items]
Special charges			0
UNITED STATES | Annual Cost Savings [Member]
Special Charges [Line Items]
Special charges			1.2
UNITED STATES | Industrial [Member]
Special Charges [Line Items]
Special charges	0.2		1.3
UNITED STATES | Industrial [Member] | Annual Cost Savings [Member]
Special Charges [Line Items]
Special charges			2.3
UNITED STATES | Consumer [Member]
Special Charges [Line Items]
Special charges	0.9
AUSTRALIA
Special Charges [Line Items]
Special charges			0.7
AUSTRALIA | Cash Expenditures [Member]
Special Charges [Line Items]
Special charges			0
AUSTRALIA | Annual Cost Savings [Member]
Special Charges [Line Items]
Special charges			0.8
UNITED STATES AND AUSTRALIA
Special Charges [Line Items]
Special charges			3.1
Scenario, Forecast [Member] | EMEA | Cash Expenditures [Member]
Special Charges [Line Items]
Special charges							10.0
Scenario, Forecast [Member] | UNITED STATES
Special Charges [Line Items]
Special charges							20.0
Scenario, Forecast [Member] | UNITED STATES | Employee Severance [Member]
Special Charges [Line Items]
Special charges								13.0
Scenario, Forecast [Member] | UNITED STATES | Annual Cost Savings [Member]
Special Charges [Line Items]
Special charges							10.0
Scenario, Forecast [Member] | UNITED STATES | 2016 Estimated Annual Cost Savings [Domain]
Special Charges [Line Items]
Special charges							$ 25.0