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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income $ 288 $ 444
Reconciliation of net income to net cash provided by operating activities:    
Depreciation and amortization 127 121
Equity-indexed compensation expense 17 12
Deferred income tax expense 48 56
(Gain)/loss on foreign currency revaluation 8 (3)
Equity earnings in unconsolidated entities (75) (53)
Distributions on earnings from unconsolidated entities 101 52
Other 11 10
Changes in assets and liabilities, net of acquisitions (4) 177
Net cash provided by operating activities 521 816
CASH FLOWS FROM INVESTING ACTIVITIES    
Cash paid in connection with acquisitions, net of cash acquired   (1,254)
Investments in unconsolidated entities (40) (123)
Additions to property, equipment and other (266) (275)
Proceeds from sales of assets 83 161
Other investing activities 2  
Net cash used in investing activities (221) (1,491)
CASH FLOWS FROM FINANCING ACTIVITIES    
Net borrowings/(repayments) under commercial paper program (Note 8) (8) 149
Net borrowings under senior unsecured revolving credit facility (Note 8) 350  
Net repayments under senior secured hedged inventory facility (Note 8) (498) (501)
Repayments of senior notes   (400)
Net proceeds from sales of common units   1,664
Distributions paid to common unitholders (Note 9) (218) (371)
Other financing activities 63 125
Net cash provided by/(used in) financing activities (311) 666
Effect of translation adjustment on cash (3)  
Net decrease in cash and cash equivalents (14) (9)
Cash and cash equivalents, beginning of period 37 47
Cash and cash equivalents, end of period 23 38
Cash paid for:    
Interest, net of amounts capitalized 76 92
Income taxes, net of amounts refunded $ 9 $ 27