Financing Arrangements (Components Of Outstanding Debt) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Aug. 17, 2017
Schedule of Short Term and Long Term Debt [Line Items]
Commercial paper	$ 509.9	$ 219.4
Other	50.1	38.2
Short-term borrowings, total	$ 560.0	$ 257.6
Weighted-average interest rate of short-term borrowings at year-end	2.90%	2.30%
Other	$ 180.5	$ 19.6
Unamortized discounts and fair value adjustments	(35.4)	(36.4)
Long-term debt	4,136.4	4,769.5
Less current portion	(83.5)	(325.6)
Long-term debt, excluding current maturities	4,052.9	4,443.9
Notes Payable, Other Payables [Member] | 5.75% Notes Due 2017 [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 0.0	$ 250.0
Stated Note interest rate	5.75%	5.75%
Notes Payable, Other Payables [Member] | 3.90% Notes Due 2021 [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 250.0	$ 250.0
Stated Note interest rate	3.90%
Notes Payable, Other Payables [Member] | Two Point Seven Zero Notes Due Two Thousand Twenty Two [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 750.0	750.0
Stated Note interest rate	2.70%
Notes Payable, Other Payables [Member] | 3.50% Notes Due 2023 [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 250.0	250.0
Stated Note interest rate	3.50%
Notes Payable, Other Payables [Member] | Three Point One Five Notes Due On Two Thousand Twenty Four [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 700.0	700.0
Stated Note interest rate	3.15%
Notes Payable, Other Payables [Member] | 3.25% Notes Due 2025 [Member]
Schedule of Short Term and Long Term Debt [Line Items]
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	3.84%
Notes Payable, Other Payables [Member] | Three Point Four Zero Notes Due Two Thousand Twenty Seven [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 750.0	750.0
Weighted average fixed rate	3.44%
Stated Note interest rate	3.40%
Notes Payable, Other Payables [Member] | Four Point Two Zero Notes Due Two Thousand Forty Seven [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 300.0	300.0
Stated Note interest rate	4.20%
Notes Payable, Other Payables [Member] | 7.63%-8.12% Notes Due 2024 [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 55.0	55.0
Notes Payable, Other Payables [Member] | Notes Issued In July 2011 [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 250.0
Weighted average fixed rate	4.01%
Notes Payable, Other Payables [Member] | August 2013 [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 250.0
Weighted average fixed rate	3.30%
Notes Payable, Other Payables [Member] | Interest Rate Swap [Member] | 5.20% Notes Due 2015 [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Notes outstanding	$ 100.0
Bridge Loan [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Quarterly installment payments, percentage	2.50%
Bridge Loan [Member] | Term Loan Due Two Thousand Twenty [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Long-term debt	$ 130.0	500.0
Bridge Loan [Member] | Term Loan Due Two Thousand Twenty Two [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Long-term debt	$ 556.3	$ 731.3	$ 750.0
Stated Note interest rate			2.70%
Minimum [Member] | Notes Payable, Other Payables [Member] | 7.63%-8.12% Notes Due 2024 [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Stated Note interest rate	7.63%
Maximum [Member] | Notes Payable, Other Payables [Member] | 7.63%-8.12% Notes Due 2024 [Member]
Schedule of Short Term and Long Term Debt [Line Items]
Stated Note interest rate	8.12%