Income Taxes (Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Line Items]
Income tax expense (benefit) at Federal statutory tax rate	$ (34.3)	$ (52.9)	$ (222.6)
Foreign tax rate differential	2.5	13.2	30.6
Nondeductible / nontaxable items	1.5	2.8	96.4
Impact of divestitures and liquidations (net of valuation allowances)	(9.0)	(14.2)	3.9
Change in uncertain tax positions	9.0	(8.8)	(10.0)
Withholding tax and surcharges	3.0	4.3	5.8
Change in valuation allowance	26.8	39.0	98.1
Other (net)	(3.2)	1.8	6.1
Income tax expense (benefit)	(3.7)	(14.8)	8.3
Goodwill impairment charges	9.0	3.9	155.1
SEC and DOJ settlements	$ 82.3	$ 28.0
Venezuela [Member]
Income Tax Disclosure [Line Items]
Goodwill impairment charges			40.5
SEC and DOJ settlements			8.4
Loss due to currency devaluation			78.1
Inflation adjustments			$ 32.9