Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ (2,715)	$ 525
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Impairments and other charges	3,353	308
Depreciation, depletion and amortization	829	1,253
Deferred Income Tax Expense (Benefit)	(380)	(77)
Changes in assets and liabilities:
Receivables	1,294	7
Accounts payable	(933)	(283)
Inventories	115	(380)
Other operating activities	174	(2)
Total cash flows provided by operating activities	1,243	1,278
Cash flows from investing activities:
Capital expenditures	(510)	(1,190)
Proceeds from sales of property, plant and equipment	199	143
Other investing activities	(33)	(83)
Total cash flows used in investing activities	(344)	(1,130)
Cash flows from financing activities:
Payments on long-term borrowings	(1,653)	(11)
Proceeds from issuance of long-term debt, net	994	0
Dividends to shareholders	(238)	(472)
Stock repurchase program	(100)	(100)
Other financing activities	25	33
Total cash flows used in financing activities	(972)	(550)
Effect of exchange rate changes on cash	(80)	(35)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(153)	(437)
Cash and equivalents at beginning of period	2,268	2,008
Cash and equivalents at end of period	2,115	1,571
Cash payments during the period for:
Interest	396	394
Income taxes	$ 256	288
Maximum Percentage Gross Trade Receivables From One Customer	10.00%
Increase (Decrease) in Employee Related Liabilities	$ (494)	$ (73)