Fair Value Measurements (Tables)

6 Months Ended

May 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
			May 31, 2013
	Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	72.1	$	72.1	$	—	$	—
Insurance contracts	80.5		—		80.5		—
Bonds & other long-term investments	13.4		13.4		—		—
Interest rate derivatives	18.4		—		18.4		—
Foreign currency derivatives	1.9		—		1.9		—
Total	$	186.3	$	85.5	$	100.8	$	—
Liabilities
Foreign currency derivatives	$	0.6	$	—	$	0.6	$	—

			Fair value measurements using fair value hierarchy As of
			May 31, 2012
	Fair Value		Level 1		Level 2		Level 3
Assets
Cash and cash equivalents	$	61.4	$	61.4	$	—	$	—
Insurance contracts	63.3		—		63.3		—
Bonds & other long-term investments	12.3		12.3		—		—
Interest rate derivatives	17.9		—		17.9		—
Foreign currency derivatives	1.7		—		1.7		—
Total	$	156.6	$	73.7	$	82.9	$	—
Liabilities
Foreign currency derivatives	$	2.7	$	—	$	2.7	—

			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	$	—