Financing Arrangements (Components Of Outstanding Debt) (Details) - USD ($) $ in Millions	Nov. 30, 2021	Nov. 30, 2020	Apr. 30, 2020
Schedule of Short Term and Long Term Debt [Line Items]
Commercial paper	$ 530.8	$ 845.8
Other	8.3	40.9
Short-term borrowings, total	$ 539.1	$ 886.7
Weighted-average interest rate of short-term borrowings at year-end	0.20%	0.30%
Other	$ 199.2	$ 195.8
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net	(10.6)	16.9
Long-term debt	4,743.6	4,017.7
Less current portion	(770.3)	(263.9)
Long-term debt, excluding current maturities	3,973.3	3,753.8
Stated Note interest rate			2.50%
Debt Instrument, Unamortized Discount	31.8	24.4
Interest Rate Derivatives, at Fair Value, Net	21.2	41.3
Notes Payable, Other Payables \| 3.90% notes due 7/8/2021
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	0.0	250.0
Notes outstanding	$ 0.0	250.0
Stated Note interest rate	3.90%
Notes Payable, Other Payables \| 2.70% notes due 8/15/2022
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 750.0	750.0
Notes outstanding	$ 750.0	750.0
Stated Note interest rate	2.70%
Notes Payable, Other Payables \| 3.50% notes due 8/19/2023(1)
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 250.0	250.0
Notes outstanding	$ 250.0	250.0
Stated Note interest rate	3.50%
Notes Payable, Other Payables \| 3.15% notes due 8/15/2024
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 700.0	700.0
Notes outstanding	$ 700.0	700.0
Stated Note interest rate	3.15%
Notes Payable, Other Payables \| 3.25% notes due 11/15/2025(2)
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 250.0	250.0
Notes outstanding	$ 250.0	250.0
Weighted average fixed rate	3.45%
Stated Note interest rate	3.25%
Debt Instrument Basis Spread Increase On Variable Rate	1.22%
Debt Instrument, effective interest rate	1.38%
Notes Payable, Other Payables \| 0.90% Notes due Feb 2026
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 500.0	0.0
Notes outstanding	500.0	0.0
Notes Payable, Other Payables \| 3.40% notes due 8/15/2027(3)
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	750.0	750.0
Notes outstanding	$ 750.0	750.0
Weighted average fixed rate	3.44%
Stated Note interest rate	3.40%
Debt Instrument Basis Spread Increase On Variable Rate	0.685%
Debt Instrument, effective interest rate	0.84%
Notes Payable, Other Payables \| 2.50% notes due 4/15/2030
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 500.0	500.0
Notes outstanding	500.0	500.0
Notes Payable, Other Payables \| 1.85% Notes due Feb 2031
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	500.0	0.0
Notes outstanding	500.0	0.0
Notes Payable, Other Payables \| 4.20% notes due 8/15/2047
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	300.0	300.0
Notes outstanding	$ 300.0	300.0
Stated Note interest rate	4.20%
Notes Payable, Other Payables \| 7.63%–8.12% notes due 2024
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 55.0	55.0
Notes outstanding	55.0	$ 55.0
Notes Payable, Other Payables \| August 2013
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	250.0
Notes outstanding	$ 250.0
Weighted average fixed rate	3.30%
Notes Payable, Other Payables \| Interest Rate Swap [Member] \| 3.40% notes due 8/15/2027(3)
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 250.0
Notes outstanding	250.0
Notes Payable, Other Payables \| Interest Rate Swap [Member] \| 5.20% Notes Due 2015
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	100.0
Notes outstanding	$ 100.0
Minimum [Member] \| Notes Payable, Other Payables \| 7.63%–8.12% notes due 2024
Schedule of Short Term and Long Term Debt [Line Items]
Stated Note interest rate	7.63%
Maximum [Member] \| Notes Payable, Other Payables \| 7.63%–8.12% notes due 2024
Schedule of Short Term and Long Term Debt [Line Items]
Stated Note interest rate	8.12%

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