Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 20	$ 688
Receivables, net of allowance for doubtful accounts
Trade	110	129
Affiliate	98	101
Other	10	0
Prepayments and other current assets	16	20
Total Current Assets	254	938
Property, Plant and Equipment, Net	4,011	3,444
Acquired Intangibles, Net	1,048	947
Equity Method Investments	327	337
Goodwill	127	117
Other Noncurrent Assets, Net	72	77
Total Assets	5,839	5,860
Accounts payable
Trade	83	69
Affiliate	36	56
Accrued interest and financing costs	61	42
Other current liabilities	34	45
Total Current Liabilities	214	212
Debt, Net of Unamortized Issuance Costs	3,778	4,053
Other Noncurrent Liabilities	60	53
Total Liabilities	4,052	4,318
Equity
Common unitholders; 108,002,273 units issued and outstanding (102,981,495 in 2016)	1,848	1,608
General partner; 2,202,880 units issued and outstanding (2,100,900 in 2016)	(61)	(66)
Total Equity	1,787	1,542
Total Liabilities and Equity	$ 5,839	$ 5,860