Fair Value Measurements (Tables)

9 Months Ended

Aug. 31, 2013

Fair Value Disclosures [Abstract]

Assets and liabilities measured at fair value on recurring basis

Our population of financial assets and liabilities subject to fair value measurements on a recurring basis are as follows (in millions):

			Fair value measurements using fair value hierarchy As of
			August 31, 2013
	Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	146.8	$	146.8	$	—	$	—
Insurance contracts	84.3		—		84.3		—
Bonds & other long-term investments	13.0		13.0		—		—
Interest rate derivatives	11.5		—		11.5		—
Foreign currency derivatives	1.4		—		1.4		—
Total	$	257.0	$	159.8	$	97.2	$	—
Liabilities
Foreign currency derivatives	$	1.0	$	—	$	1.0	$	—

			Fair value measurements using fair value hierarchy As of
			August 31, 2012
	Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	72.2	$	72.2	$	—	$	—
Insurance contracts	71.1		—		71.1		—
Bonds & other long-term investments	12.9		12.9		—		—
Interest rate derivatives	16.6		—		16.6		—
Foreign currency derivatives	0.7		—		0.7		—
Total	$	173.5	$	85.1	$	88.4	$	—
Liabilities
Foreign currency derivatives	$	1.6	$	—	$	1.6	—

			Fair value measurements using fair value hierarchy As of
			November 30, 2012
	Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	79.0	$	79.0	$	—	$	—
Insurance contracts	72.5		—		72.5		—
Bonds & other long-term investments	13.6		13.6		—		—
Interest rate derivatives	16.7		—		16.7		—
Foreign currency derivatives	0.9		—		0.9		—
Total	$	182.7	$	92.6	$	90.1	$	—
Liabilities
Foreign currency derivatives	$	1.9	$	—	$	1.9	$	—
Interest rate derivatives	0.1		—		0.1		—
Total	$	2.0	$	—	$	2.0	$	—