Balance Sheet Accounts and Supplemental Disclosures, (As Restated for fiscal 2014 and 2013) - Schedule of Estimated Amounts to be Amortized from Other Comprehensive Loss to Net Periodic Benefit Expense (Details) $ in Millions	12 Months Ended
	Nov. 30, 2015 USD ($)
Pension Benefits [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Actuarial losses (gains), net	$ 64.7
Prior service costs (credits), net	0.1
Total	64.8
Medical and Life Insurance Benefits [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Actuarial losses (gains), net	(3.6)
Prior service costs (credits), net	(1.1)
Total	$ (4.7)