Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, beginning of period		$ (118.0)	$ (117.9)	$ (122.4)	$ (125.3)
Other comprehensive income (loss) before reclassifications		(5.5)	(5.7)	(1.7)	0.6
Amounts reclassified to earnings (a)	[1]	0.9	1.1	1.5	2.2
Accumulated Other Comprehensive Income (Loss), Net of Tax, end of period		(122.6)	(122.5)	(122.6)	(122.5)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, beginning of period		(28.8)	(16.8)	(32.6)	(23.1)
Other comprehensive income (loss) before reclassifications		(5.5)	(5.7)	(1.7)	0.6
Amounts reclassified to earnings (a)	[1]	0.0	0.0	0.0	0.0
Accumulated Other Comprehensive Income (Loss), Net of Tax, end of period		(34.3)	(22.5)	(34.3)	(22.5)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax, beginning of period		(89.2)	(101.1)	(89.8)	(102.2)
Other comprehensive income (loss) before reclassifications		0.0	0.0	0.0	0.0
Amounts reclassified to earnings (a)	[1]	0.9	1.1	1.5	2.2
Accumulated Other Comprehensive Income (Loss), Net of Tax, end of period		$ (88.3)	$ (100.0)	$ (88.3)	$ (100.0)

[1] Amounts reclassified from accumulated other comprehensive income (loss) related to defined benefit plans were included in net periodic benefit expense.