Consolidated Balance Sheet (Unaudited) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 68	$ 96
Trade accounts and other receivables (net of allowance of $5 at September 30, 2016 and $3 at December 31, 2015)	837	1,026
Inventories	120	127
Other current assets and deferred charges	381	190
Total current assets	1,406	1,439
Investments	7,084	7,336
Property, plant, and equipment, at cost	37,786	37,833
Accumulated depreciation and amortization	(9,947)	(9,233)
Property, plant, and equipment – net	27,839	28,600
Intangible assets – net of accumulated amortization	9,751	10,016
Regulatory assets, deferred charges, and other	458	479
Total assets	46,538	47,870
Accounts payable:
Trade	592	648
Affiliate	62	141
Accrued interest	187	231
Asset retirement obligations	51	57
Other accrued liabilities	565	469
Commercial paper	2	499
Long-term debt due within one year	785	176
Total current liabilities	2,244	2,221
Long-term debt	18,918	19,001
Asset retirement obligations	792	857
Deferred income tax liabilities	17	119
Regulatory liabilities, deferred income, and other	1,314	1,066
Contingent liabilities (Note 11)
Partners’ equity:
Common units (595,916,630 and 588,546,022 units outstanding at September 30, 2016 and December 31, 2015, respectively)	18,354	19,730
Class B units (16,314,835 and 14,784,015 units outstanding at September 30, 2016 and December 31, 2015, respectively)	767	771
General partner	2,383	2,552
Accumulated other comprehensive income (loss)	(1)	(172)
Total partners’ equity	21,503	22,881
Noncontrolling interests in consolidated subsidiaries	1,750	1,725
Total equity	23,253	24,606
Total liabilities and equity	$ 46,538	$ 47,870