Employee Benefit Plans Employee Benefit Plans (Reconciliation of Level 3 Measurements - Pension) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2016	Nov. 30, 2015
Defined Benefit Plan, Reconciliation of Unobservable Inputs [Roll Forward]
Fair value of plan assets at beginning of year	$ 141.0
Redemptions	(0.2)	$ 0.0
Fair Value of Plan Assets at End of Year	136.3	141.0
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Reconciliation of Unobservable Inputs [Roll Forward]
Fair value of plan assets at beginning of year	1.5
Fair Value of Plan Assets at End of Year	0.3	1.5
Pension Plan [Member]
Defined Benefit Plan, Reconciliation of Unobservable Inputs [Roll Forward]
Fair value of plan assets at beginning of year	197.1	221.8
Fair Value of Plan Assets at End of Year	197.1	197.1
Pension Plan [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Reconciliation of Unobservable Inputs [Roll Forward]
Fair value of plan assets at beginning of year	1.5	4.5
Redemptions	(1.0)	(2.9)
Unrealized net gains or losses included in funded status	(0.2)	(0.1)
Fair Value of Plan Assets at End of Year	$ 0.3	$ 1.5