CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
CURRENT ASSETS
Cash and cash equivalents	$ 460	$ 404
Trade accounts receivable and other receivables, net	1,817	2,615
Inventory	929	891
Other current assets	249	271
Total current assets	3,455	4,181
PROPERTY AND EQUIPMENT	14,477	14,219
Accumulated depreciation	(1,973)	(1,927)
Property and equipment, net	12,504	12,292
OTHER ASSETS
Goodwill	2,435	2,465
Investments in unconsolidated entities	1,784	1,735
Deferred tax asset	1,850	1,705
Linefill and base gas	960	930
Long-term inventory	149	186
Other long-term assets, net	459	489
Total assets	23,596	23,983
CURRENT LIABILITIES
Accounts payable and accrued liabilities	2,491	2,987
Short-term debt	553	1,287
Other current liabilities	488	482
Total current liabilities	3,532	4,756
LONG-TERM LIABILITIES
Senior notes, net of unamortized discount of $17 and $18, respectively	8,758	8,757
Other long-term debt	564	541
Other long-term liabilities and deferred credits	594	548
Total long-term liabilities	9,916	9,846
COMMITMENTS AND CONTINGENCIES (NOTE 10)
PARTNERS' CAPITAL
Noncontrolling interests	8,344	7,724
Total partners' capital	10,148	9,381
Total liabilities and partners' capital	23,596	23,983
Class A Shares
PARTNERS' CAPITAL
Partners' Capital	1,804	1,657
Class B Shares
PARTNERS' CAPITAL
Partners' Capital