Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Feb. 28, 2019	Nov. 30, 2018	Feb. 28, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	$ 4,119.8	$ 4,136.4	$ 4,454.2
Long-term debt, fair value	4,068.8	4,039.4	4,452.5
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	3,222.2	3,172.7	3,264.7
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	846.6	866.7	1,187.8
Recurring
Assets [Abstract]
Cash and cash equivalents	102.3	96.6	179.6
Insurance contracts	111.5	118.0	119.6
Bonds and other long-term investments	8.1	2.8	6.5
Interest Rate Derivative Assets, at Fair Value	0.1
Foreign currency derivatives	3.2	4.4	11.0
Assets, Fair Value Disclosure	225.2	221.8	316.7
Liabilities [Abstract]
Foreign currency derivatives	4.8	6.4	4.8
Interest rate derivatives	4.0	6.4	5.7
Cross currency contracts	9.2
Total	18.0	12.8	10.5
Recurring | Level 1
Assets [Abstract]
Cash and cash equivalents	102.3	96.6	179.6
Insurance contracts	0.0	0.0	0.0
Bonds and other long-term investments	8.1	2.8	6.5
Interest Rate Derivative Assets, at Fair Value	0.0
Foreign currency derivatives	0.0	0.0	0.0
Assets, Fair Value Disclosure	110.4	99.4	186.1
Liabilities [Abstract]
Foreign currency derivatives	0.0	0.0	0.0
Interest rate derivatives	0.0	0.0	0.0
Cross currency contracts	0.0
Total	0.0	0.0	0.0
Recurring | Level 2
Assets [Abstract]
Cash and cash equivalents	0.0	0.0	0.0
Insurance contracts	111.5	118.0	119.6
Bonds and other long-term investments	0.0	0.0	0.0
Interest Rate Derivative Assets, at Fair Value	0.1
Foreign currency derivatives	3.2	4.4	11.0
Assets, Fair Value Disclosure	114.8	122.4	130.6
Liabilities [Abstract]
Foreign currency derivatives	4.8	6.4	4.8
Interest rate derivatives	4.0	6.4	5.7
Cross currency contracts	9.2
Total	$ 18.0	$ 12.8	$ 10.5