Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Tax Credit Carryforward [Line Items]
Increase in current federal income tax expense	$ 48.9
Current, Federal	127.7	$ 78.8	$ 91.3
Net increase in deferred federal tax benefit	38.9
Non-U.S. subsidiaries tax loss carryforwards	137.1
Tax loss carryforwards expiring through 2017	3.4
Tax loss carryforwards expiring from 2018 through 2019	11.0
Tax Loss Carryforwards expiring from 2020 Through 2027	39.2
Tax loss carryforwards indefinitely	83.5
Non-U.S. subsidiaries capital loss carryforwards		4.7
Tax credit carryforwards	14.8
Net increase in the valuation allowance	4.1
Unremitted earnings	1,640.0
Unrecognized tax benefits	58.3	56.5	55.7	$ 58.0
Statute expirations	10.0	8.1	0.7
Interest and penalty (income) / expense	1.2	(0.1)	0.5
Interest and penalties accrued	5.7	4.5
Tax benefits that would impact effective tax rate	46.1
Deferred, Federal	29.6	(9.3)	$ (2.8)
2021 Expiration [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 0.3
Tax credit carryforwards expiration year	Nov. 30, 2021
2022 Expiration [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 13.5
Tax credit carryforwards expiration year	Nov. 30, 2022
2026 Expiration [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforwards		$ 1.0
Tax credit carryforwards expiration year	Nov. 30, 2026