Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ 1,468	$ (2,942)	$ (1,129)
Adjustments to reconcile net income (loss) to cash flows from operating activities:
Impairments and other charges	12	3,799	2,506
Cash impact of impairments and other charges - severance payments	(47)	(350)	(144)
Depreciation, depletion and amortization	904	1,058	1,625
Deferred income tax provision (benefit), continuing operations	(486)	(444)	(396)
Changes in assets and liabilities:
Receivables	(500)	1,394	636
Accounts payable	795	(934)	(595)
Inventories	(10)	340	(202)
Other operating activities	(225)	(40)	144
Total cash flows provided by operating activities	1,911	1,881	2,445
Cash flows from investing activities:
Capital expenditures	(799)	(728)	(1,530)
Proceeds from sales of property, plant and equipment	257	286	190
Other investing activities	(79)	(44)	(105)
Total cash flows used in investing activities	(534)	(486)	(1,445)
Cash flows from financing activities:
Dividends to shareholders	(161)	(278)	(630)
Proceeds from issuance of common stock	79	87	118
Stock repurchase program	0	(100)	(100)
Payments on long-term borrowings	(700)	(1,654)	(13)
Other financing activities	(56)	(56)	(70)
Total cash flows used in financing activities	(838)	(1,007)	(695)
Effect of exchange rate changes on cash	(58)	(93)	(45)
Cash and equivalents at beginning of year	2,563	2,268	2,008
Cash and equivalents at end of year	3,044	2,563	2,268
Cash payments (receipts) during the period for:
Interest	517	509	534
Income taxes	214	300	363
Proceeds from Issuance of Long-term Debt	0	994	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	481	295	260
Structured Real Estate Transaction
Cash flows from investing activities:
Proceeds from Sale of Real Estate Held-for-investment	$ 87	$ 0	$ 0