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 income (loss)	$ (2,444)	$ 1,201	$ 660
Depreciation and amortization	2,834	2,894	2,611
Provision (Credit) for deferred income tax	(341)	135	(1,222)
Earnings of nonconsolidated affiliates less than (in excess of) dividends received	439	348	387
Net periodic pension benefit cost	(95)	(210)	548
Pension contributions	(209)	(121)	(142)
Net gain on sales of assets, businesses and investments	(220)	(65)	(70)
Restructuring, goodwill impairment and asset related charges - net	1,856	103	528
Other net loss	440	239	796
Accounts and notes receivable	73	(224)	1,161
Inventories	(52)	(529)	844
Accounts payable	(999)	278	(734)
Other assets and liabilities, net	(220)	(1,146)	(203)
Cash provided by operating activities - continuing operations	1,062	2,903	5,164
Cash provided by (used for) operating activities - discontinued operations	(30)	11	32
Cash provided by (used for) operating activities	1,032	2,914	5,196
Capital expenditures	(2,479)	(2,940)	(2,356)
Proceeds from incentives related to capital expenditures	145	0	0
Cash flow hedging related to capital expenditures	(40)	0	0
Investment in gas field developments	(157)	(203)	(215)
Purchases of previously leased assets	0	0	(7)
Proceeds from sales of property and businesses, net of cash divested	139	234	95
Acquisitions of property and businesses, net of cash acquired	0	(125)	(114)
Investments in and loans to nonconsolidated affiliates	(32)	(28)	(5)
Distributions and loan repayments from nonconsolidated affiliates	0	0	2
Proceeds from Sale of Equity Method Investments	125	0	63
Purchases of investments	(881)	(1,809)	(2,288)
Proceeds from sales and maturities of investments	1,022	2,536	1,958
Other investing activities, net	32	(33)	(61)
Cash provided by (used for) investing activities	(2,126)	(2,368)	(2,928)
Changes in short-term notes payable	(5)	(61)	(249)
Proceeds from Short-term Debt, Maturing in More than Three Months	64	143	0
Repayments of Short-term Debt, Maturing in More than Three Months	(63)	(17)	0
Proceeds from issuance of long-term debt	2,778	1,467	104
Payments on long-term debt	(1,461)	(267)	(446)
Proceeds from (Repayments of) Accounts Receivable Securitization	(9)	(9)	18
Purchases of treasury stock	0	(494)	(625)
Proceeds from issuance of parent company stock	85	166	188
Transaction financing, debt issuance and other costs	(137)	(14)	(2)
Employee taxes paid for share-based payment arrangements	(18)	(39)	(42)
Distributions to noncontrolling interests	(173)	(77)	(89)
Proceeds from Noncontrolling Interests	2,943	0	0
Dividends paid to stockholders	(1,490)	(1,966)	(1,972)
Other financing activities, net	(6)	0	0
Cash used for financing activities	2,508	(1,168)	(3,115)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	275	(163)	(45)
Increase (decrease) in cash, cash equivalents and restricted cash	1,689	(785)	(892)
Cash, cash equivalents and restricted cash at beginning of year	2,263	3,048	3,940
Cash, cash equivalents and restricted cash at end of year	3,952	2,263	3,048
Less: Restricted cash and cash equivalents, included in Other current assets	136	74	61
Cash and cash equivalents at end of year	$ 3,816	$ 2,189	$ 2,987