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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income $ 633 $ 304
Reconciliation of net income to net cash provided by operating activities:    
Depreciation and amortization 250 319
Equity-indexed compensation expense 22 26
Inventory valuation adjustments 35 3
Deferred income tax (benefit)/expense 65 (27)
Gain on foreign currency revaluation (11) (2)
Settlement of terminated interest rate hedging instruments (29) (50)
Change in fair value of Preferred Distribution Rate Reset Option (Note 10) 2 (25)
Equity earnings in unconsolidated entities (121) (87)
Distributions on earnings from unconsolidated entities 136 101
Other 14 6
Changes in assets and liabilities, net of acquisitions 465 (181)
Net cash provided by operating activities 1,461 387
CASH FLOWS FROM INVESTING ACTIVITIES    
Cash paid in connection with acquisitions, net of cash acquired (1,281) (85)
Investments in unconsolidated entities (250) (120)
Additions to property, equipment and other (549) (699)
Proceeds from sales of assets 389 391
Return of investment from unconsolidated entities 21 0
Other investing activities 16 (9)
Net cash used in investing activities (1,654) (522)
CASH FLOWS FROM FINANCING ACTIVITIES    
Net borrowings/(repayments) under commercial paper program (Note 8) 25 (844)
Net borrowings/(repayments) under senior secured hedged inventory facility (Note 8) (450) 252
Repayments of senior notes (Note 8) (400)  
Net proceeds from the sale of Series A preferred units   1,569
Net proceeds from the sale of common units (Note 9) 1,664  
Contributions from general partner   33
Distributions paid to common unitholders (Note 9) (770) (557)
Distributions paid to general partner   (309)
Other financing activities 123 (6)
Net cash provided by financing activities 192 138
Effect of translation adjustment on cash 1 4
Net increase in cash and cash equivalents 0 7
Cash and cash equivalents, beginning of period 47 27
Cash and cash equivalents, end of period 47 34
Cash paid for:    
Interest, net of amounts capitalized 252 225
Income taxes, net of amounts refunded $ 34 $ 51