Income Taxes (Table 3) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Deferred tax assets	$ 3,024.7	$ 2,342.9
Deferred tax liabilities	(1,307.8)	(1,785.7)
Net deferred tax asset	$ 1,716.9	$ 557.2