Retirement Benefits, (As Restated for fiscal 2014 and 2013) - Schedule of Fair Value of Pension Plan Assets and Liabilities by Asset Category and by Level (Details) - USD ($) $ in Millions	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	$ 405.8	$ 420.2
Fair value of pension plan assets, Receivables	3.8	12.9
Fair value of pension plan assets, Payables	(2.0)	(11.4)
Fair value of pension plan assets, Total	964.1	1,163.1
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	101.5	166.4
Private Equity Holdings [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	62.8	106.8
Alternative Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	97.7	267.7
Common Collective Trusts [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	245.3	45.7
Equity Securities [Member] | Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	361.4	418.5
Equity Securities [Member] | International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	34.3	43.3
Derivatives [Member] | Purchased Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.5
Derivatives [Member] | Written Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.2	(0.6)
Derivatives [Member] | Short Sales [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	(62.8)	(96.6)
Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	556.5	741.4
Fixed Income [Member] | Short Sales [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	(3.2)	(15.4)
Fixed Income [Member] | Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	27.5	86.0
Fixed Income [Member] | Asset-Backed Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	96.9	114.0
Fixed Income [Member] | Real Estate Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.7	25.3
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	101.5	166.4
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Securities [Member] | Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	352.9	412.0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Securities [Member] | International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	34.3	43.3
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Derivatives [Member] | Purchased Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.5
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Derivatives [Member] | Written Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.2	(0.6)
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Derivatives [Member] | Short Sales [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	(62.8)	(96.6)
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	423.6	515.6
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fixed Income [Member] | Short Sales [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	(2.5)	(10.4)
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fixed Income [Member] | Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	1.0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fixed Income [Member] | Asset-Backed Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fixed Income [Member] | Real Estate Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) [Member] | Equity Securities [Member] | Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	8.0	6.5
Significant Other Observable Inputs (Level 2) [Member] | Equity Securities [Member] | International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) [Member] | Derivatives [Member] | Purchased Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0
Significant Other Observable Inputs (Level 2) [Member] | Derivatives [Member] | Written Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) [Member] | Derivatives [Member] | Short Sales [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Other Observable Inputs (Level 2) [Member] | Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	131.7	200.2
Significant Other Observable Inputs (Level 2) [Member] | Fixed Income [Member] | Short Sales [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	(0.7)	(5.0)
Significant Other Observable Inputs (Level 2) [Member] | Fixed Income [Member] | Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	27.5	84.7
Significant Other Observable Inputs (Level 2) [Member] | Fixed Income [Member] | Asset-Backed Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	96.9	114.0
Significant Other Observable Inputs (Level 2) [Member] | Fixed Income [Member] | Real Estate Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets, Total	1.2	25.6	$ 16.4
Significant Unobservable Inputs (Level 3) [Member] | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] | Real Estate Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets, Total	0.7	25.3	15.7
Significant Unobservable Inputs (Level 3) [Member] | Equity Securities [Member] | Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.5	0.0
Fair value of pension plan assets, Total	0.5	0.0	0.3
Significant Unobservable Inputs (Level 3) [Member] | Equity Securities [Member] | International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] | Derivatives [Member] | Purchased Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets		0.0
Significant Unobservable Inputs (Level 3) [Member] | Derivatives [Member] | Written Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] | Derivatives [Member] | Short Sales [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] | Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	1.2	25.6
Significant Unobservable Inputs (Level 3) [Member] | Fixed Income [Member] | Short Sales [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] | Fixed Income [Member] | Corporate Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.3
Fair value of pension plan assets, Total	0.0	0.3	$ 0.4
Significant Unobservable Inputs (Level 3) [Member] | Fixed Income [Member] | Asset-Backed Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0.0	0.0
Significant Unobservable Inputs (Level 3) [Member] | Fixed Income [Member] | Real Estate Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	$ 0.7	$ 25.3