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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2018 | Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES |  |
Net income | $ 388 | $ 633
Reconciliation of net income to net cash provided by operating activities: |  |
Depreciation and amortization | 175 | 250
Equity-indexed compensation expense | 36 | 22
Inventory valuation adjustments |  | 35
Deferred income tax expense | 25 | 65
Settlement of terminated interest rate hedging instruments | 14 | (29)
Equity earnings in unconsolidated entities | (171) | (121)
Distributions on earnings from unconsolidated entities | 206 | 136
Other | 13 | 5
Changes in assets and liabilities, net of acquisitions | 329 | 465
Net cash provided by operating activities | 1,015 | 1,461
CASH FLOWS FROM INVESTING ACTIVITIES |  |
Cash paid in connection with acquisitions, net of cash acquired |  | (1,281)
Investments in unconsolidated entities | (216) | (250)
Additions to property, equipment and other | (724) | (549)
Proceeds from sales of assets | 426 | 389
Return of investment from unconsolidated entities | 9 | 21
Other investing activities | (1) | 16
Net cash used in investing activities | (506) | (1,654)
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Net borrowings under commercial paper program (Note 9) | 135 | 25
Net borrowings under senior unsecured revolving credit facility (Note 9) | 126 |
Net repayments under senior secured hedged inventory facility (Note 9) | (333) | (450)
Repayments of senior notes |  | (400)
Net proceeds from sales of common units |  | 1,664
Other financing activities | 60 | 123
Net cash provided by/(used in) financing activities | (509) | 192
Effect of translation adjustment on cash | (3) | 1
Net decrease in cash and cash equivalents | (3) |
Cash and cash equivalents, beginning of period | 37 | 47
Cash and cash equivalents, end of period | 34 | 47
Cash paid for: |  |
Interest, net of amounts capitalized | 203 | 252
Income taxes, net of amounts refunded | 11 | 34
Series A Preferred Units |  |
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Distributions paid to unitholders (Note 10) | (37) |
Series B Preferred Units |  |
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Distributions paid to unitholders (Note 10) | (25) |
Common Units |  |
CASH FLOWS FROM FINANCING ACTIVITIES |  |
Distributions paid to unitholders (Note 10) | $ (435) | $ (770)

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