Partners' Capital and Distributions (Details 2)	3 Months Ended
	Mar. 31, 2015
Class B Shares
Partners Capital and Distribution
Balance, beginning of period (in shares)	399,096,499
Shares exchanged in connection with Exchange Right exercises	(15,819,735)
Balance, end of period (in shares)	383,276,764
Class A Shares
Partners Capital and Distribution
Balance, beginning of period (in shares)	206,933,274
Shares issued in connection with Exchange Right exercises	15,819,735
Shares issued in connection with LTIP award vestings	20,800
Balance, end of period (in shares)	222,773,809
Class A Shares | AAP units
Partners Capital and Distribution
AAP unit exchange ratio to Class A shares	1