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CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
CASH FLOW FROM OPERATING ACTIVITIES |  |
Net income | $ 631 | $ 708
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation, depletion and amortization of assets | 973 | 921
Deferred income tax provision | 10 | 94
Other noncash charges (benefits) to income | 225 | (23)
Asset impairments and related items | 0 | 30
Gain on sale of assets, net | (7) | (33)
Changes in operating assets and liabilities, net | (884) | (688)
Net cash provided by operating activities | 948 | 1,009
CASH FLOW FROM INVESTING ACTIVITIES |  |
Capital expenditures | (1,259) | (1,032)
Change in capital accrual | (51) | (45)
Payments for purchases of assets and businesses | (69) | (177)
Sales of assets, net | 16 | 275
Equity investments and other, net | (52) | 8
Net cash used by investing activities | (1,415) | (971)
CASH FLOW FROM FINANCING ACTIVITIES |  |
Proceeds from long-term debt, net | 0 | 978
Payments of long-term debt | 0 | (500)
Proceeds from issuance of common stock | 16 | 10
Purchase of treasury stock | (237) | 0
Cash dividends paid | (591) | (592)
Other financing, net | (2) | 0
Net cash used by financing activities | (814) | (104)
Decrease in cash and cash equivalents | (1,281) | (66)
Cash and cash equivalents — beginning of period | 3,033 | 1,672
Cash and cash equivalents — end of period | $ 1,752 | $ 1,606

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