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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Cash flows from operating activities: |  |  |
Net income | $ 411 | $ 217 | $ 9
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 213 | 214 | 193
Deferred income taxes | 59 | (217) | (84)
Loss on asset disposals | 6 | 3 | 1
Share-based compensation | 16 | 19 | 9
Other items | 3 | 7 | 6
Changes in assets and liabilities: |  |  |
Accounts receivable | 56 | (27) | (48)
Inventories | (9) | (40) | (9)
Prepaid expenses and other current assets | (29) | 34 | (3)
Due to (from) parent | 2 | (16) | 22
Accounts payable | (23) | 87 | (10)
Deferred revenue | 11 | 1 | (20)
Other current liabilities | (104) | (113) | 203
Other long-term assets and liabilities | 8 | (1) | (2)
Net cash provided by operating activities | 620 | 168 | 267
Cash flows from investing activities: |  |  |
Capital expenditures | (102) | (120) | (133)
Acquisition of CVR Nitrogen, net of cash acquired | 0 | 0 | (64)
Investment in affiliates, net of return of investment | 0 | (76) | (5)
Other investing activities | 2 | 0 | 1
Net cash provided by (used in) investing activities | (100) | (196) | (201)
Cash flows from financing activities: |  |  |
Proceeds on issuance of 2023 Notes, net of original issue discount | 0 | 0 | 629
Principal and premium payments on 2021 Notes | 0 | 0 | (322)
Payments of revolving debt | 0 | 0 | (49)
Principal payments on CRNF credit facility | 0 | 0 | (125)
Dividends to CVR Energy’s stockholders | (238) | (174) | (174)
Other financing activities | (3) | (3) | (12)
Net cash provided by (used in) financing activities | (334) | (226) | (95)
Net increase (decrease) in cash and cash equivalents | 186 | (254) | (29)
Cash and cash equivalents, beginning of period | 482 | 736 | 765
Cash and cash equivalents, end of period | 668 | 482 | 736
CVR Refining |  |  |
Cash flows from investing activities: |  |  |
Investment in affiliates, net of return of investment |  | (77) |
Cash flows from financing activities: |  |  |
Distributions to noncontrolling interest holders | (93) | (47) | 0
CVR Partners |  |  |
Cash flows from financing activities: |  |  |
Distributions to noncontrolling interest holders | $ 0 | $ (2) | $ (42)

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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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