Equity (Change in Common Units) (Details) - shares shares in Millions	1 Months Ended		12 Months Ended
	Aug. 31, 2014	Feb. 28, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Number of Common Units, beginning of period			355.5	333.8
Common Units issued in connection with public offerings			0.0	0.0	13.8
Partners' Capital Account, Units, Acquisitions			172.2	15.8	49.5
Common Units Redeemed for Class H Units			0.0	0.0	(50.2)
Common Units issued in connection with the Distribution Reinvestment Plan			7.7	2.8	2.3
Common Units issued in connection with the equity distribution program			21.1	21.4	16.9
Stock Repurchased During Period, Shares			0.0	0.0	(0.4)
Issuance of Common Units under equity incentive plans			0.9	0.4	0.4
Number of Common Units, end of period			505.6	355.5	333.8
Susser Merger [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	15.8
Lake Charles LNG Transaction [Member]
Partners' Capital Account, Units, Redeemed		(18.7)	(51.8)	(18.7)	0.0