Employee Benefit Plans Employee Benefit Plans (Schedule of Amounts Recognized in Other Comprehensive Loss - Pension) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Estimated net loss for defined benefit plans that will be amortized	$ (3.2)	$ 12.8	$ (29.5)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	(141.5)	(139.5)
Prior service credit	0.1	$ 0.1
After-tax amount of unrecognized net actuarial loss	126.6
Estimated net loss for defined benefit plans that will be amortized	$ 4.9