Short-Term Borrowings (Detail)				3 Months Ended		6 Months Ended
	Feb. 19, 2016 USD ($)	Dec. 14, 2015 USD ($)	Oct. 29, 2015 USD ($)	May 31, 2017 USD ($)	May 31, 2016 USD ($)	May 31, 2017 USD ($)	May 31, 2016 USD ($)	Nov. 30, 2016 USD ($)	May 31, 2016 EUR (€)
Short-term Debt [Line Items]
Short-term borrowings				$ 439,140,000		$ 439,140,000		$ 525,842,000
Interest rate on short-term borrowings outstanding				2.21%		2.21%
Average daily short-term borrowings				$ 537,300,000	$ 362,000,000	$ 493,200,000	$ 334,300,000
Long-term debt				6,304,032,000		6,304,032,000		5,483,355,000
Floating rate puttable notes [Member]
Short-term Debt [Line Items]
Short-term borrowings				102,339,000		102,339,000		96,455,000
Equity-linked Notes [Member]
Short-term Debt [Line Items]
Short-term borrowings				28,044,000		28,044,000		0
Debt principal amount				30,600,000.0		30,600,000.0
Bank loans [Member]
Short-term Debt [Line Items]
Short-term borrowings				308,757,000		308,757,000		372,301,000
Bank loans [Member] | Floating rate puttable notes [Member]
Short-term Debt [Line Items]
Debt principal amount | €									€ 41,000,000.0
Secured revolving loan facilities [Member] | Loan Facility [Member]
Short-term Debt [Line Items]
Short-term borrowings				0		0		$ 57,086,000
Line of Credit [Member] | First Secured Revolving Loan Facility [Member]
Short-term Debt [Line Items]
Credit facility maximum borrowing capacity			$ 50,000,000
Line of Credit [Member] | First Secured Revolving Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Short-term Debt [Line Items]
Basis spread on variable rate			3.75%
Line of Credit [Member] | Second Secured Revolving Loan Facility [Member]
Short-term Debt [Line Items]
Credit facility maximum borrowing capacity		$ 50,000,000
Line of Credit [Member] | Second Secured Revolving Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Short-term Debt [Line Items]
Basis spread on variable rate		4.25%
Line of Credit [Member] | Demand Loan Facility [Member]
Short-term Debt [Line Items]
Credit facility maximum borrowing capacity	$ 25,000,000.0
Line of Credit [Member] | Demand Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Short-term Debt [Line Items]
Basis spread on variable rate	1.50%
Line of Credit [Member] | Intraday Credit Facility [Member]
Short-term Debt [Line Items]
Credit facility maximum borrowing capacity				$ 250,000,000.0		$ 250,000,000.0
Line of Credit [Member] | Intraday Credit Facility [Member] | Federal funds effective rate [Member]
Short-term Debt [Line Items]
Basis spread on variable rate						0.50%