Consolidated Condensed Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CASH FLOW FROM OPERATING ACTIVITIES
Net income	$ 1,263	$ 4,876
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization of assets	1,721	1,643
Deferred income tax provision (benefit)	17	(2,240)
Gains on sales of assets, net	(4)	(135)
Noncash charges to income and other	156	34
Changes in operating assets and liabilities:
Decrease (increase) in receivables	1,010	(1,238)
(Increase) decrease in inventories	(248)	439
Increase in other current assets	(122)	(158)
Decrease in accounts payable and accrued liabilities	(1,174)	(187)
Increase in current domestic and foreign income taxes	251	205
Net cash provided by operating activities	2,870	3,239
CASH FLOW FROM INVESTING ACTIVITIES
Capital expenditures	(1,461)	(858)
Change in capital accrual	(20)	(39)
Purchases of businesses and assets, net	(151)	(29)
Proceeds from sales of assets, net	54	267
Equity investments and other, net	(20)	(3)
Net cash used by investing activities	(1,598)	(662)
CASH FLOW FROM FINANCING ACTIVITIES
Payments of long-term debt	(22)	(3,259)
Proceeds from issuance of common stock	30	27
Purchases of treasury stock	(732)	(36)
Cash dividends paid on common and preferred stock	(320)	(216)
Financing portion of net cash received for derivative instruments	0	79
Other financing, net	(36)	(24)
Net cash used by financing activities	(1,080)	(3,429)
Increase (decrease) in cash, cash equivalents, restricted cash and restricted cash equivalents	192	(852)
Cash, cash equivalents, restricted cash and restricted cash equivalents — beginning of period	1,026	2,803
Cash, cash equivalents, restricted cash and restricted cash equivalents — end of period	$ 1,218	$ 1,951