Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 24		$ 19
Trade accounts receivable, net of allowance for doubtful accounts of $7 and $1	483		292
Related party receivables	45		28
Inventories	67		42
Derivative Asset, Current	75		3
Other current assets	9		16
Total current assets	703		400
Property, Plant and Equipment:
Gathering and transmission systems	5,207		1,671
Compression equipment	2,378		1,627
Gas plants and buildings	386		825
Other property, plant and equipment	679		414
Plant Property and Equipment, Natural Resources	454		0
Construction-in-progress	1,156		513
Total property, plant and equipment	10,260		5,050
Less accumulated depreciation and depletion	(1,043)		(632)
Property, plant and equipment, net	9,217		4,418
Other Assets:
Equity Method Investments	2,418		2,097
Other, net of accumulated amortization of debt issuance costs of $28 and $24	103		57
Total other assets	2,521		2,154
Intangible Assets and Goodwill:
Intangible assets, net of accumulated amortization of $212 and $107	3,439		682
Goodwill	1,223		1,128
Total intangible assets and goodwill	4,662		1,810
TOTAL ASSETS	17,103		8,782
Current Liabilities:
Drafts payable	15		26
Trade accounts payable	529		291
Related party payables	64		69
Accrued expenses	43		25
Accrued interest	81		38
Other current liabilities	24		26
Total current liabilities	756		475
Long-term derivative liabilities	16		19
Other long-term liabilities	72		30
Long-term debt, net	6,641		3,310
Series A Preferred Units, redemption amount of $38 and $85	33	[1]	32
Partners’ Capital and Noncontrolling Interest:
Common units (- and 214,287,955 units authorized; - and 210,850,232 units issued and outstanding at December 31, 2014 and 2013)	8,531		3,886
Class F common units	153		146
General partner interest	781		782
Total partners’ capital	9,465		4,814
Noncontrolling interest	120		102
Total partners’ capital and noncontrolling interest	9,585		4,916
TOTAL LIABILITIES AND PARTNERS’ CAPITAL AND NONCONTROLLING INTEREST	$ 17,103		$ 8,782

[1] * This amount will be accreted to $35 million plus any accrued but unpaid distributions and interest by deducting amounts from partners’ capital over the remaining periods until the mandatory redemption date of September 2, 2029. Accretion during 2013 was immaterial.