Financing Arrangements (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended			12 Months Ended								12 Months Ended						12 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011	Nov. 30, 2013 Letter Of Credit [Member]	Nov. 30, 2012 Letter Of Credit [Member]	Nov. 30, 2013 3.90% Notes Due 2021 [Member]	Nov. 30, 2013 3.50% Notes Due 2023 [Member]	Nov. 30, 2013 Notes Payable, Other Payables [Member] August 2013 [Member]	Nov. 30, 2013 Notes Payable, Other Payables [Member] 3.90% Notes Due 2021 [Member]		Nov. 30, 2012 Notes Payable, Other Payables [Member] 3.90% Notes Due 2021 [Member]		Nov. 30, 2013 Notes Payable, Other Payables [Member] 3.50% Notes Due 2023 [Member]		Nov. 30, 2012 Notes Payable, Other Payables [Member] 3.50% Notes Due 2023 [Member]		Nov. 30, 2012 Notes Payable, Other Payables [Member] 5.25% Notes Due 2013 [Member]		Nov. 30, 2013 Notes Payable, Other Payables [Member] 5.25% Notes Due 2013 [Member]		Sep. 30, 2013 Notes Payable, Other Payables [Member] 5.25% Notes Due 2013 [Member]		Nov. 30, 2013 Line of Credit [Member]	Nov. 30, 2012 Line of Credit [Member]	Nov. 30, 2013 Line of Credit [Member] Current Credit Facility [Member]	Nov. 30, 2013 Commercial Paper Program [Member]
Debt Instrument [Line Items]
Notes outstanding							$ 250.0	$ 250.0	$ 250.0	[1]	$ 250.0	[1]	$ 250.0	[1]	$ 0	[1]	$ 250.0	[2]	$ 0	[2]	$ 250.0	[2]
Stated Note interest rate							3.50%		3.90%		3.90%		3.50%				5.25%				5.25%
Net proceeds from issuance of notes	246.2	0.8	252.0			246.2
Notes subject to interest rate hedge						175.0
Duration of agreement																									5 years
Credit facility																							399.7		600.0	200.3
Debt instrument maturity year									2021		2021		2023				2013								June 2016
Basis spread on variable rate																									0.875%
Total unused capacity				19.4																			114.1
Committed credit facilities, fee																							0.5	0.5
Rental expense under operating leases	37.6	32.7	31.9
Guarantees outstanding	0.6
Outstanding letters of credit				$ 61.9	$ 59.2
Debt, Weighted Average Interest Rate								3.30%

[1] (4)Interest rate swaps, settled upon the issuance of these notes in 2011, effectively fixed the interest rate on the $250 million notes at a weighted-average fixed rate of 4.01%.

[2] (1)Interest rate swaps, settled upon the issuance of these notes in 2008, effectively fixed the interest rate on the $250 million notes at a weighted-average fixed rate of 5.54%.