Statement of Consolidated Cash Flows (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
CASH FROM OPERATIONS
Net income (loss)	$ 350	$ (150)	$ 569	$ (11)
Adjustments to reconcile net income to cash from operations:
Provision for depreciation, depletion, and amortization	161	152	343	322
Deferred income taxes			48	(6)
Equity earnings, net of dividends			(46)	15
Restructuring and other charges, net (D)	33	37	40	39
Net gain from investing activities – asset sales (Q)			(124)	(176)
Net periodic pension benefit cost (L)			24	67
Stock-based compensation			18	17
Provision for bad debt expense			1	2
Premium paid on early redemption of debt			25
Other			28	5
Changes in assets and liabilities, excluding effects of divestitures and foreign currency translation adjustments:
(Increase) Decrease in receivables			(270)	124
(Increase) Decrease in inventories			(184)	184
Decrease in prepaid expenses and other current assets			58	13
Increase (Decrease) in accounts payable, trade			32	(183)
(Decrease) in accrued expenses			(20)	(120)
Increase in taxes, including income taxes			40	7
Pension contributions (L)			(570)	(59)
(Increase) Decrease in noncurrent assets			(34)	19
(Decrease) in noncurrent liabilities			(58)	(61)
CASH (USED FOR) PROVIDED FROM OPERATIONS			(80)	198
FINANCING ACTIVITIES
Additions to debt (original maturities greater than three months)			495
Payments on debt (original maturities greater than three months)			(776)
Proceeds from the exercise of employee stock options			14
Financial contributions for the divestiture of businesses (D)			(13)	(24)
Contributions from noncontrolling interest				16
Distributions to noncontrolling interest			(137)	(106)
Other			(4)	(1)
CASH USED FOR FINANCING ACTIVITIES			(421)	(115)
INVESTING ACTIVITIES
Capital expenditures			(154)	(168)
Proceeds from the sale of assets			705	199
Additions to investments			(3)	(3)
CASH PROVIDED FROM INVESTING ACTIVITIES			548	28
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS AND RESTRICTED CASH			(2)	(26)
Net change in cash and cash equivalents and restricted cash			45	85
Cash and cash equivalents and restricted cash at beginning of year			1,610	883	$ 883
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	$ 1,655	$ 968	$ 1,655	$ 968	$ 1,610