Per Unit Data (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Per Unit Data
Net Income attributable to Unitholders - Basic	$ 490,344	$ 294,900	$ 1,466,453	$ 1,169,875
Net Income attributable to Unitholders - Diluted	$ 490,344	$ 294,900	$ 1,466,453	$ 1,169,875
Weighted Average Number of Shares Outstanding - Basic and Diluted	361,234,111	363,645,178	362,584,302	363,421,835
Effect of dilutive securities:
Securities with dilutive effect	$ 0	$ 0	$ 0	$ 0