Retirement Benefits, (As Restated for fiscal 2014 and 2013) - Schedule of Estimated Future Benefit Payments (Details) $ in Millions	Nov. 30, 2015 USD ($)
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future Net Benefit Payments, 2016	$ 123.6
Estimated future Net Benefit Payments, 2017	122.0
Estimated future Net Benefit Payments, 2018	119.9
Estimated future Net Benefit Payments, 2019	117.2
Estimated future Net Benefit Payments, 2020	114.5
Estimated future Net Benefit Payments, Years 2021 - 2025	525.2
Medical and Life Insurance Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future Net Benefit Payments, 2016	6.0
Estimated future Net Benefit Payments, 2017	5.8
Estimated future Net Benefit Payments, 2018	5.5
Estimated future Net Benefit Payments, 2019	5.2
Estimated future Net Benefit Payments, 2020	4.9
Estimated future Net Benefit Payments, Years 2021 - 2025	18.8
Estimated future Gross Benefit Payments, 2016	6.3
Estimated future Gross Benefit Payments, 2017	6.1
Estimated future Gross Benefit Payments, 2018	5.8
Estimated future Gross Benefit Payments, 2019	5.4
Estimated future Gross Benefit Payments, 2020	5.1
Estimated future Gross Benefit Payments, Years 2021 - 2025	19.6
Estimated future Medicare D Subsidy, 2016	0.3
Estimated future Medicare D Subsidy, 2017	0.3
Estimated future Medicare D Subsidy, 2018	0.3
Estimated future Medicare D Subsidy, 2019	0.2
Estimated future Medicare D Subsidy, 2020	0.2
Estimated future Medicare D Subsidy, Years 2021 - 2025	$ 0.8