Consolidated Statement Of Equity (USD $) In Millions	Total	General Partner	Common Unitholders	Class D Units [Member]	Accumulated Other Comprehensive Income	Non- controlling Interest
Balance, December 31, 2013 at Dec. 31, 2013	$ 16,279	$ (3)	$ 1,066	$ 6	$ 9	$ 15,201
Distributions to partners	(195)	0	(194)	(1)	0	0
Distributions to noncontrolling interest	(397)	0	0	0	0	(397)
Subsidiary units issued for cash	175	0	17	0	0	158
Subsidiary units issued in certain acquisitions	4,015	0	104	0	0	3,911
Subsidiary units redeemed in Trunkline LNG Transaction	0	2	480	0	0	(482)
Non-cash compensation expense, net of units tendered by employees for tax withholdings	17	0	0	4	0	13
Other, net	(7)	0	(3)	0	0	(4)
Units repurchased under buyback program	(366)	0	(366)	0	0	0
Other comprehensive loss, net of tax	(11)	0	0	0	(3)	(8)
Net income	448	0	167	1	0	280
Balance, March 31, 2014 at Mar. 31, 2014	$ 19,958	$ (1)	$ 1,271	$ 10	$ 6	$ 18,672