Fair Value Measurements (Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Millions, unless otherwise specified	Nov. 30, 2014	Nov. 30, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	$ 77.3	$ 63.0
Insurance contracts	104.5	90.1
Bonds and other long-term investments	8.5	13.3
Interest rate derivatives	7.4	12.2
Foreign currency derivatives	4.9	1.1
Total	202.6	179.7
Foreign currency derivatives	1.4	1.6
Total	1.4	1.6
Level 1 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	77.3	63.0
Insurance contracts	0	0
Bonds and other long-term investments	8.5	13.3
Interest rate derivatives	0	0
Foreign currency derivatives	0	0
Total	85.8	76.3
Foreign currency derivatives	0	0
Total	0	0
Level 2 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	0	0
Insurance contracts	104.5	90.1
Bonds and other long-term investments	0	0
Interest rate derivatives	7.4	12.2
Foreign currency derivatives	4.9	1.1
Total	116.8	103.4
Foreign currency derivatives	1.4	1.6
Total	1.4	1.6
Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash and cash equivalents	0	0
Insurance contracts	0	0
Bonds and other long-term investments	0	0
Interest rate derivatives	0	0
Foreign currency derivatives	0	0
Total	0	0
Foreign currency derivatives	0	0
Total	$ 0	$ 0