Fair Value Measurements (Tables)

12 Months Ended

Nov. 30, 2014

Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]

Assets And Liabilities Measured At Fair Value On Recurring Basis

Our population of assets and liabilities subject to fair value measurements on a recurring basis at November 30, 2014 and 2013 are as follows:

			Fair value measurements using fair value hierarchy as of  November 30, 2014
(millions)	Fair value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	77.3	$	77.3	—		—
Insurance contracts	104.5		—		$	104.5	—
Bonds and other long-term investments	8.5		8.5		—		—
Interest rate derivatives	7.4		—		7.4		—
Foreign currency derivatives	4.9		—		4.9		—
Total	$	202.6	$	85.8	$	116.8	—
Liabilities
Foreign currency derivatives	$	1.4	—		$	1.4	—
Total	$	1.4	—		$	1.4	—

			Fair value measurements using fair value hierarchy as of November 30, 2013
(millions)	Fair value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	63.0	$	63.0	—		—
Insurance contracts	90.1		—		$	90.1	—
Bonds and other long-term investments	13.3		13.3		—		—
Interest rate derivatives	12.2		—		12.2		—
Foreign currency derivatives	1.1		—		1.1		—
Total	$	179.7	$	76.3	$	103.4	—
Liabilities
Foreign currency derivatives	$	1.6	—		$	1.6	—
Total	$	1.6	—		$	1.6	—