Equity and Distributions (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended	1 Months Ended	12 Months Ended					12 Months Ended
	Dec. 31, 2011	Jun. 30, 2013 Enterprise EF78 LLC [Member]	Dec. 31, 2013 Common units [Member]	Dec. 31, 2012 Common units [Member]	Dec. 31, 2011 Common units [Member]	Dec. 31, 2013 Class B units [Member]	Dec. 31, 2012 Class B units [Member]	Dec. 31, 2013 Treasury Units [Member]	Dec. 31, 2011 Duncan Merger [Member]	Dec. 31, 2011 Duncan Merger [Member] Common units [Member]	Dec. 31, 2009 TEPPCO Merger [Member] Class B units [Member]
Mergers [Line Items]
Units outstanding (in units)			935,685,008	898,813,337		0	4,520,431			24,036,950
Common unit exchange ratio in connection with merger										1.01	1.24
Common units issued in connection with merger (in units)										24,277,310	4,520,431
Equity transferred pursuant to Duncan Merger	$ 0								$ 401.7
Conversion and reclassification of Class B units to common units (in units)			4,520,431			4,520,431
Treasury Units [Abstract]
Maximum common units authorized for repurchase under a buy-back program (in units)								2,000,000
Maximum remaining common units authorized for repurchase under a buy-back program (in units)								618,400
Total of common units repurchased under a buy-back program (in units)								1,381,600
Conversion of restricted units and similar awards to common units (in units)								1,885,348
Acquisition of treasury units in connection with vesting of equity-based awards (in units)			630,927	408,241	255,276			630,927
Total cost of treasury units								36.9
Noncontrolling Interest [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent		75.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		25.00%
Initial contribution from joint venture partner		$ 90.2