CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 659	$ 996
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	326	293
Equity-indexed compensation expense	27	90
Inventory valuation adjustments	25	37
Deferred income tax expense/(benefit)	(6)	28
Gain on sales of linefill and base gas		(8)
(Gain)/loss on foreign currency revaluation	(20)	10
Settlement of terminated interest rate hedging instruments	(48)	(7)
Equity earnings in unconsolidated entities	(134)	(73)
Distributions from unconsolidated entities	159	74
Other	(12)	10
Changes in assets and liabilities, net of acquisitions	246	(172)
Net cash provided by operating activities	1,222	1,278
CASH FLOWS FROM INVESTING ACTIVITIES
Cash paid in connection with acquisitions, net of cash acquired	(104)	(10)
Additions to property, equipment and other	(1,617)	(1,424)
Investment in unconsolidated entities	(213)	(98)
Cash received for sales of linefill and base gas		24
Cash paid for purchases of linefill and base gas	(131)	(159)
Proceeds from sales of assets	4	2
Other investing activities	(8)	1
Net cash used in investing activities	(2,069)	(1,664)
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings/(repayments) under commercial paper program (Note 6)	151	(683)
Proceeds from the issuance of senior notes (Note 6)	998	1,447
Repayments of senior notes (Note 6)	(549)
Net proceeds from the issuance of common units (Note 7)	1,099	655
Contributions from general partner	23	14
Distributions paid to common unitholders (Note 7)	(802)	(688)
Distributions paid to general partner (Note 7)	(436)	(344)
Distributions paid to noncontrolling interests	(2)	(2)
Costs incurred in connection with financing arrangements	(11)	(15)
Other financing activities	(2)	(4)
Net cash provided by financing activities	469	380
Effect of translation adjustment on cash	(3)	(1)
Net decrease in cash and cash equivalents	(381)	(7)
Cash and cash equivalents, beginning of period	403	41
Cash and cash equivalents, end of period	22	34
Cash paid for:
Interest, net of amounts capitalized	287	237
Income taxes, net of amounts refunded	$ 43	$ 135