Financial Arrangements and Financial Instruments - Additional Information (Details)	3 Months Ended		6 Months Ended
	May 31, 2020 USD ($)	May 31, 2019 USD ($)	May 31, 2020 USD ($)	May 31, 2019 USD ($)	May 31, 2020 GBP (£)	May 31, 2020 USD ($)	May 31, 2020 EUR (€)	Nov. 30, 2019 USD ($)
Debt Instrument [Line Items]
Investment Foreign Currency, Contract, Foreign Currency Amount						$ 371,400,000		$ 489,200,000
Total derivative assets, Fair Value		$ 26,100,000		$ 26,100,000		68,300,000		$ 27,400,000
Maximum time frame for foreign exchange contracts, months			18 months
Amount of accumulated other comprehensive income expected to be reclassified to earnings in next 12 months						2,800,000
Special charges	$ 2,900,000	7,100,000	$ 3,900,000	9,200,000
Long-term debt borrowings			495,000,000.0	0
Short-term Contract with Customer [Member]
Debt Instrument [Line Items]
Investment Foreign Currency, Contract, Foreign Currency Amount						73,800,000
Fair Value Hedging | Foreign exchange contracts
Debt Instrument [Line Items]
Derivative, Notional Amount						295,900,000
Net Investment Hedging | Cross currency contracts
Debt Instrument [Line Items]
Derivative, Notional Amount						250,000,000
Total derivative assets, Fair Value						250,000,000
Derivative, Collateral, Obligation to Return Cash | £					£ 194,100,000
Net Investment Hedging | Cross currency contract II
Debt Instrument [Line Items]
Derivative, Notional Amount | £					194,100,000
Total derivative assets, Fair Value | £					£ 194,100,000
Derivative, Collateral, Obligation to Return Cash | €							€ 221,800,000
Other Income | Fair Value Hedging | Foreign exchange contracts
Debt Instrument [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	5,700,000	1,000,000.0	3,500,000	2,700,000
Other Income | Fair Value Hedging | Loans Payable
Debt Instrument [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	$ (6,200,000)	(1,400,000)	(4,200,000)	(3,200,000)
Interest Rate Swap | Treasury Lock [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount						350,000,000
Term Loan Due Two Thousand Twenty Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Annual Principal Payment		37,500,000		37,500,000		$ 37,500,000
Three Point Two Five Zero Notes Due On Two Thousand Twenty Five [Member]
Debt Instrument [Line Items]
Stated Note interest rate					3.25%	3.25%	3.25%
Three Point Two Five Zero Notes Due On Two Thousand Twenty Five [Member] | Interest Rate Swap | Treasury Lock [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount						$ 100,000,000
Derivative, Fixed Interest Rate					3.25%	3.25%	3.25%
Derivative, Basis Spread on Variable Rate					1.22%	1.22%	1.22%
Three Point Two Five Zero Notes Due On Two Thousand Twenty Five [Member] | Interest Rate Swap 3.25% | Treasury Lock [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount						$ 100,000,000
Notes Payable						$ 250,000,000
Three Point Four Zero Notes Due Two Thousand Twenty Seven [Member]
Debt Instrument [Line Items]
Stated Note interest rate					3.40%	3.40%	3.40%
Three Point Four Zero Notes Due Two Thousand Twenty Seven [Member] | Interest Rate Swap | Treasury Lock [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount						$ 250,000,000
Notes Payable						750,000,000
Three Point Four Zero Notes Due Two Thousand Twenty Seven [Member] | Interest Rate Swap 3.40% | Treasury Lock [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount						$ 250,000,000
Derivative, Fixed Interest Rate					3.40%	3.40%	3.40%
Derivative, Basis Spread on Variable Rate					0.685%	0.685%	0.685%
Term Loan Due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Annual Principal Payment		$ 50,000,000.0		$ 50,000,000.0
2.5% Notes due April 2030 [Member]
Debt Instrument [Line Items]
Notes Payable						$ 500,000,000
Long-term debt borrowings			$ 495,000,000.0
United States LIBOR | Net Investment Hedging | Cross currency contracts
Debt Instrument [Line Items]
Derivative, Variable Interest Rate					0.685%	0.685%	0.685%
Great Britain LIBOR | Net Investment Hedging | Cross currency contracts
Debt Instrument [Line Items]
Derivative, Variable Interest Rate					0.74%	0.74%	0.74%
Great Britain LIBOR | Net Investment Hedging | Cross currency contract II
Debt Instrument [Line Items]
Derivative, Variable Interest Rate					0.74%	0.74%	0.74%
EURIBOR | Net Investment Hedging | Cross currency contract II
Debt Instrument [Line Items]
Derivative, Variable Interest Rate					0.808%	0.808%	0.808%