Financial Instruments (Narrative) (Details)	12 Months Ended		48 Months Ended
	Nov. 30, 2021 USD ($)	Nov. 30, 2020 USD ($)	Nov. 30, 2021 USD ($)	Nov. 30, 2021 GBP (£)	Nov. 30, 2021 EUR (€)	Apr. 30, 2020	Nov. 30, 2019 USD ($)
Derivative [Line Items]
Maximum time frame for short-term foreign exchange contracts	18 months
Stated Note interest rate						2.50%
Other comprehensive income (loss) expected to be reclassified in income in next 12 months	$ (200,000)		$ (200,000)
Derivative Asset, Fair Value, Gross Asset	$ 35,800,000	$ 44,500,000	35,800,000
Customer Concentration Risk | Revenue Benchmark
Derivative [Line Items]
Concentration Risk Threshold percentage	10.00%
Foreign Exchange Contracts [Member]
Derivative [Line Items]
Investment Owned, Foreign Currency Contract, Current Value	$ 583,600,000	383,800,000	583,600,000
Foreign Exchange Contracts [Member] | Other Current Assets [Member]
Derivative [Line Items]
Derivative Asset, Notional Amount	380,800,000	27,500,000	$ 380,800,000
Interest Rate Swap [Member]
Derivative [Line Items]
Interest on interest rate swap contracts							3.25%
Derivative Instrument Basis Spread Increase On Variable Rate			1.22%
Derivative, Notional Amount							$ 100,000,000
Interest Rate Contracts [Member] | Other Current Assets [Member]
Derivative [Line Items]
Derivative Asset, Notional Amount	350,000,000	$ 350,000,000.0	$ 350,000,000
Short-term Contract with Customer
Derivative [Line Items]
Investment Foreign Currency, Contracts, Foreign Currency Amount	$ 209,700,000		$ 209,700,000
Maximum [Member]
Derivative [Line Items]
Maturity period for remaining foreign currency contracts (in months)		18 months
Minimum [Member]
Derivative [Line Items]
Maturity period for remaining foreign currency contracts (in months)		1 month
3.25% notes due 11/15/2025(2)
Derivative [Line Items]
Medium-term notes due							$ 250,000,000
3.40% notes due 8/15/2027(3)
Derivative [Line Items]
Stated Note interest rate	3.40%		3.40%	3.40%	3.40%
3.40% notes due 8/15/2027(3) | Interest Rate Swap II [Member] | Treasury Lock [Member]
Derivative [Line Items]
Interest on interest rate swap contracts	3.40%		3.40%	3.40%	3.40%
Derivative, Basis Spread on Variable Rate	0.685%		0.685%	0.685%	0.685%
Derivative, Notional Amount	$ 250,000,000		$ 250,000,000
3.40% notes due 8/15/2027(3) | Interest Rate Swap [Member] | Treasury Lock [Member]
Derivative [Line Items]
Notes payable	750,000,000		750,000,000
Derivative, Notional Amount	250,000,000		250,000,000
Fair Value Hedges [Member] | Foreign Exchange Contracts [Member]
Derivative [Line Items]
Investment Owned, Foreign Currency Contract, Current Value	449,300,000	$ 212,300,000	449,300,000
Net Investment Hedging [Member] | Cross Currency Interest Rate Contract I [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	250,000,000		250,000,000
Derivative, Collateral, Obligation to Return Cash | £				£ 194,100,000
Derivative, Notional Amount	$ 250,000,000		$ 250,000,000
Net Investment Hedging [Member] | Cross Currency Interest Rate Contract II [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset | £				194,100,000
Derivative, Collateral, Obligation to Return Cash | €					€ 221,800,000
Derivative, Notional Amount | £				£ 194,100,000
United States LIBOR [Member] | Net Investment Hedging [Member] | Cross Currency Interest Rate Contract I [Member]
Derivative [Line Items]
Derivative, Variable Interest Rate	0.685%		0.685%	0.685%	0.685%
Great Britain LIBOR [Member] | Net Investment Hedging [Member] | Cross Currency Interest Rate Contract I [Member]
Derivative [Line Items]
Derivative, Variable Interest Rate	0.74%		0.74%	0.74%	0.74%
Great Britain LIBOR [Member] | Net Investment Hedging [Member] | Cross Currency Interest Rate Contract II [Member]
Derivative [Line Items]
Derivative, Variable Interest Rate	0.74%		0.74%	0.74%	0.74%
EURIBOR [Member] | Net Investment Hedging [Member] | Cross Currency Interest Rate Contract II [Member]
Derivative [Line Items]
Derivative, Variable Interest Rate	0.808%		0.808%	0.808%	0.808%