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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income $ 408 $ 672
Reconciliation of net income to net cash provided by operating activities:    
Depreciation and amortization 217 196
Equity-indexed compensation expense 36 68
Inventory valuation adjustments 24 37
Deferred income tax (benefit)/expense (12) 18
Gain on sales of linefill and base gas   (8)
Gain on foreign currency revaluation (26) (5)
Settlement of terminated interest rate hedging instruments (29) (7)
Equity earnings in unconsolidated entities (89) (44)
Distributions from unconsolidated entities 102 51
Other (11) 5
Changes in assets and liabilities, net of acquisitions 40 (20)
Net cash provided by operating activities 660 963
CASH FLOWS FROM INVESTING ACTIVITIES    
Cash paid in connection with acquisitions, net of cash acquired (64) (2)
Additions to property, equipment and other (1,031) (918)
Investment in unconsolidated entities (119) (67)
Cash received for sales of linefill and base gas   23
Cash paid for purchases of linefill and base gas (125) (140)
Proceeds from sales of assets 2 3
Other investing activities (6)  
Net cash used in investing activities (1,343) (1,101)
CASH FLOWS FROM FINANCING ACTIVITIES    
Net borrowings/(repayments) under commercial paper program (Note 6) 151 (344)
Proceeds from the issuance of senior notes (Note 6)   698
Repayments of senior notes (Note 6) (149)  
Net proceeds from the issuance of common units (Note 7) 1,099 444
Contributions from general partner 23 9
Distributions paid to common unitholders (Note 7) (526) (450)
Distributions paid to general partner (Note 7) (284) (222)
Distributions paid to noncontrolling interests (1) (1)
Other financing activities (4) (10)
Net cash provided by financing activities 309 124
Effect of translation adjustment on cash (1)  
Net decrease in cash and cash equivalents (375) (14)
Cash and cash equivalents, beginning of period 403 41
Cash and cash equivalents, end of period 28 27
Cash paid for:    
Interest, net of amounts capitalized 190 161
Income taxes, net of amounts refunded $ 30 $ 104