Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Cash Flows [Abstract]
Net earnings (loss)	$ (1,151)	$ (1,534)	$ 1,947
Adjustments to reconcile net earnings (loss) to net cash provided by (used in) operating activities
Asset impairment losses	1,513	1,639	15
Depreciation, amortization and accretion	786	823	739
Pension and postretirement net periodic benefit cost	8	6	13
Pension and postretirement contributions	(54)	(54)	(49)
Actuarial (gain) loss on pension and postretirement plans	(45)	37	66
Pension curtailments and settlements, net	(3)	(9)	1
Deferred income taxes, net	(278)	213	(972)
(Gain) loss on disposition of businesses and assets, net	5	13	(501)
Stock-based compensation	24	32	40
Undistributed earnings in unconsolidated affiliates	13	(33)	55
Other, net	81	19	9
Operating cash provided by (used in) discontinued operations	12	(5)	(2)
Changes in operating assets and liabilities
Trade receivables - third party and affiliates, net	213	92	105
Inventories	154	11	398
Other assets	167	1	285
Trade payables - third party and affiliates	26	(234)	20
Other liabilities	(325)	(51)	(270)
Net cash provided by (used in) operating activities	1,146	966	1,899
Investing Activities
Capital expenditures on property, plant and equipment	(343)	(435)	(568)
Acquisitions, net of cash acquired	0	0	52
Proceeds from sale of businesses and assets, net	21	0	480
Settlement of cross-currency swap agreement	0	17	0
Other, net	(27)	(52)	(98)
Net cash provided by (used in) investing activities	(349)	(470)	(134)
Financing Activities
Net change in short-term borrowings with maturities of 3 months or less	8	15	(278)
Proceeds from short-term borrowings	606	160	452
Repayments of short-term borrowings	(637)	(418)	(603)
Proceeds from long-term debt	4,352	328	3,001
Repayments of long-term debt	(4,652)	(1,033)	(3,660)
Common stock dividends	(13)	(307)	(305)
Distributions/dividends to noncontrolling interests	(30)	(33)	(11)
Other, net	(147)	(25)	(52)
Net cash provided by (used in) financing activities	(513)	(1,313)	(1,456)
Exchange rate effects on cash and cash equivalents	17	(26)	(12)
Net increase (decrease) in cash and cash equivalents	301	(843)	297
Cash and cash equivalents as of beginning of period	962	1,805	1,508
Cash and cash equivalents as of end of period	$ 1,263	$ 962	$ 1,805