Long-lived Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Long-lived Assets [Abstract]
Noncash vendor financing arrangement, cash increase, excluding value added tax	$ 370.9	$ 508.9
Value added tax, vendor financing arrangement	$ 63.6	$ 84.8