Employee Benefit And Retirement Plans - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended		12 Months Ended
	Aug. 31, 2018	Aug. 31, 2017	Nov. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment	$ 17.5	$ 77.7
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax	18.0	76.7
Payment for Pension Benefits	12.0	10.9	$ 18.7
Pension and other postretirement costs	156.1	148.3	$ 152.3
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment	$ 17.5	7.8
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment		27.1
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax		$ 27.1