Intangible Assets, Net (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Intangible Assets, Net [Abstract]
Intangible assets, useful life	15 years
Amortization expense	$ 369.9	$ 363.1	$ 338.4