Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ (2,696)	$ 229
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Impairments and other charges	3,220	308
Depreciation, depletion and amortization	599	836
Deferred Income Tax Expense (Benefit)	(353)	(47)
Changes in assets and liabilities:
Receivables	1,079	(394)
Accounts payable	(744)	(14)
Inventories	(39)	(347)
Other operating activities	(243)	(164)
Total cash flows provided by operating activities	823	407
Cash flows from investing activities:
Capital expenditures	(355)	(845)
Proceeds from sales of property, plant and equipment	122	87
Other investing activities	(48)	(53)
Total cash flows used in investing activities	(281)	(811)
Cash flows from financing activities:
Payments on long-term borrowings	(1,653)	(12)
Proceeds from issuance of long-term debt, net	994	0
Dividends to shareholders	(198)	(314)
Stock repurchase program	(100)	(100)
Other financing activities	20	18
Total cash flows used in financing activities	(937)	(408)
Effect of exchange rate changes on cash	(62)	(20)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(457)	(832)
Cash and equivalents at beginning of period	2,268	2,008
Cash and equivalents at end of period	1,811	1,176
Cash payments during the period for:
Interest	258	266
Income taxes	$ 197	$ 208