Fair Value Measurements (Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2015	May. 31, 2015	Nov. 30, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Contingent Consideration, Liability	$ 27.1	$ 27.7
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	0.5
Foreign Currency Transaction Gain (Loss), before Tax	(1.1)
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	112.6		$ 77.3
Insurance contracts	104.1		104.5
Bonds and other long-term investments	8.5		8.5
Interest rate derivatives	2.5		7.4
Foreign currency derivatives	3.4		4.9
Total	231.1		202.6
Foreign currency derivatives	0.7		1.4
Business Combination, Contingent Consideration, Liability	27.1
Interest rate derivatives	0.6
Total	28.4		1.4
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	112.6		77.3
Insurance contracts	0.0		0.0
Bonds and other long-term investments	8.5		8.5
Interest rate derivatives	0.0		0.0
Foreign currency derivatives	0.0		0.0
Total	121.1		85.8
Foreign currency derivatives	0.0		0.0
Interest rate derivatives	0.0
Total	0.0		0.0
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	0.0		0.0
Insurance contracts	104.1		104.5
Bonds and other long-term investments	0.0		0.0
Interest rate derivatives	2.5		7.4
Foreign currency derivatives	3.4		4.9
Total	110.0		116.8
Foreign currency derivatives	0.7		1.4
Interest rate derivatives	0.6
Total	1.3		1.4
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	0.0		0.0
Insurance contracts	0.0		0.0
Bonds and other long-term investments	0.0		0.0
Interest rate derivatives	0.0		0.0
Foreign currency derivatives	0.0		0.0
Total	0.0		0.0
Foreign currency derivatives	0.0		0.0
Business Combination, Contingent Consideration, Liability	27.1
Interest rate derivatives	0.0
Total	$ 27.1		$ 0.0