Retirement Benefits, (As Restated for fiscal 2014 and 2013) - Schedule of Changes in Fair Value of Level 3 Investments (Details) - USD ($) $ in Millions	12 Months Ended
Nov. 30, 2015	Nov. 30, 2014
Change in fair value of plan assets:
Fair value - beginning of year	$ 1,163.1
Fair value - end of year	964.1	$ 1,163.1
Significant Unobservable Inputs (Level 3) [Member]
Change in fair value of plan assets:
Fair value - beginning of year	25.6	16.4
Unrealized Gains (Losses) on Plan Assets	0.0	9.6
Realized Gains (Losses) on Plan Assets	0.3	0.0
Purchases, Issuances, and Settlements	(25.5)	(0.4)
Transfers out of Level 3	0.8
Fair value - end of year	1.2	25.6
Significant Unobservable Inputs (Level 3) [Member] \| Real Estate Investments [Member]
Change in fair value of plan assets:
Fair value - beginning of year	25.3	15.7
Unrealized Gains (Losses) on Plan Assets	0.2	10.0
Realized Gains (Losses) on Plan Assets	0.0	0.0
Purchases, Issuances, and Settlements	(24.8)	(0.4)
Transfers out of Level 3	0.0
Fair value - end of year	0.7	25.3
Significant Unobservable Inputs (Level 3) [Member] \| Equity Securities [Member] \| Domestic Equity Securities [Member]
Change in fair value of plan assets:
Fair value - beginning of year	0.0	0.3
Unrealized Gains (Losses) on Plan Assets	(0.3)	(0.3)
Realized Gains (Losses) on Plan Assets	0.0	0.0
Purchases, Issuances, and Settlements	0.0	0.0
Transfers out of Level 3	0.8
Fair value - end of year	0.5	0.0
Significant Unobservable Inputs (Level 3) [Member] \| Fixed Income [Member] \| Corporate Debt Securities [Member]
Change in fair value of plan assets:
Fair value - beginning of year	0.3	0.4
Unrealized Gains (Losses) on Plan Assets	0.1	(0.1)
Realized Gains (Losses) on Plan Assets	0.3	0.0
Purchases, Issuances, and Settlements	(0.7)	0.0
Transfers out of Level 3	0.0
Fair value - end of year	$ 0.0	$ 0.3

Defined Benefit Plan Fair Value Of Plan Assets Based On Unobservable Inputs Unrealized Gains Losses

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- Definition

Realized Gains And Losses On Change In Fair Value Of Plan Assets

+ References

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 30
-Section 35
-Paragraph 50
-URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

Amount of increase (decrease) in plan assets from purchases, sales and settlement of plan obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(02)(B)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)(iv)(02)(B)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920

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- Definition

Transfers in and out of Level 3. For example, transfers due to changes in the observability of significant inputs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(02)(C)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920

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