Financial Instruments - Fair Value of Derivative Instruments on Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Aug. 31, 2013	Nov. 30, 2012	Aug. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total derivative assets, Fair Value	$ 12.9	$ 17.6	$ 17.3
Total derivative liabilities, Fair Value	1.0	2.0	1.6
Interest rate contract [Member] | Other current assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts, Fair Value	11.5	16.7	16.6
Derivative Asset, Notional Amount	100.0	100.0	100.0
Interest rate contract [Member] | Other accrued liabilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Derivative Liabilities, at Fair Value		0.1
Derivative Liability, Notional Amount		50.0
Foreign Exchange Contract [Member] | Other current assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset, Notional Amount	57.5	123.1	81.5
Foreign exchange contracts, Fair Value	1.4	0.9	0.7
Foreign Exchange Contract [Member] | Other accrued liabilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign exchange contracts, Fair Value	1.0	1.9	1.6
Derivative Liability, Notional Amount	$ 66.0	$ 65.7	$ 100.0