Financial Arrangements and Financial Instruments - Additional Information (Details)	3 Months Ended		9 Months Ended
	Aug. 31, 2020 USD ($)	Aug. 31, 2019 USD ($)	Aug. 31, 2020 USD ($)	Aug. 31, 2019 USD ($)	Aug. 31, 2020 GBP (£)	Aug. 31, 2020 EUR (€)	Nov. 30, 2019 USD ($)
Debt Instrument [Line Items]
Investment Foreign Currency, Contract, Foreign Currency Amount	$ 363,400,000		$ 363,400,000				$ 489,200,000
Total derivative assets, Fair Value	63,700,000	$ 44,400,000	$ 63,700,000	$ 44,400,000			$ 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	1,300,000		$ 1,300,000
Special charges	100,000	7,700,000	4,000,000.0	16,900,000
Long-term debt borrowings			506,400,000	0
Short-term Contract with Customer [Member]
Debt Instrument [Line Items]
Investment Foreign Currency, Contract, Foreign Currency Amount	107,000,000.0		107,000,000.0
Fair Value Hedging | Foreign exchange contracts
Debt Instrument [Line Items]
Derivative, Notional Amount	291,000,000.0		291,000,000.0
Net Investment Hedging | Cross currency contracts
Debt Instrument [Line Items]
Derivative, Notional Amount	250,000,000		250,000,000
Total derivative assets, Fair Value	250,000,000		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	(7,600,000)	(5,300,000)	(4,100,000)	(2,600,000)
Other Income | Fair Value Hedging | Loans Payable
Debt Instrument [Line Items]
Foreign Currency Transaction Gain (Loss), Realized	7,300,000	5,200,000	3,100,000	2,000,000.0
Interest Rate Swap | Treasury Lock [Member]
Debt Instrument [Line Items]
Derivative, Notional Amount	350,000,000		350,000,000
Term Loan Due Two Thousand Twenty Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal			56,300,000	56,300,000
Debt Instrument, Annual Principal Payment	$ 250.0	106,300,000	$ 250.0	106,300,000
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%	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		$ 100,000,000
Derivative, Fixed Interest Rate	3.25%		3.25%		3.25%	3.25%
Derivative, Basis Spread on Variable Rate	1.22%		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		$ 100,000,000
Notes Payable	$ 250,000,000		$ 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%	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		$ 250,000,000
Notes Payable	750,000,000		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		$ 250,000,000
Derivative, Fixed Interest Rate	3.40%		3.40%		3.40%	3.40%
Derivative, Basis Spread on Variable Rate	0.685%		0.685%		0.685%	0.685%
Term Loan Due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Annual Principal Payment		$ 100,000,000.0		$ 100,000,000.0
2.5% Notes due April 2030 [Member]
Debt Instrument [Line Items]
Notes Payable	$ 500,000,000.0		$ 500,000,000.0
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%	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%	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%	0.74%
EURIBOR | Net Investment Hedging | Cross currency contract II
Debt Instrument [Line Items]
Derivative, Variable Interest Rate	0.808%		0.808%		0.808%	0.808%