Consolidated Statements of Cash Flows - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2026	Sep. 30, 2025
Cash flows from operating activities:
Net income		$ 12,384	$ 1,077
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense		2,261	2,341
Asset impairment loss		0	1,131
Deferred income tax benefit		(575)	(288)
Changes in operating assets and liabilities:
Current assets and current liabilities (see Note 11)		(123)	157
Deferred charges and other assets		(103)	(120)
Long-term liabilities		(109)	(114)
Other operating activities, net		167	(415)
Net cash provided by operating activities		13,902	3,769
Cash flows from investing activities:
Investments in nonconsolidated joint ventures		0	(1)
Other investing activities, net		50	50
Net cash used in investing activities		(1,180)	(1,426)
Cash flows from financing activities:
Purchases of common stock for treasury		(6,198)	(1,534)
Payment of excise tax on purchases of common stock for treasury		(25)	(28)
Common stock dividend payments		(1,059)	(1,061)
Contributions from noncontrolling interests		192	245
Distributions to noncontrolling interests		(452)	(131)
Other financing activities, net		(10)	(7)
Net cash used in financing activities		(7,434)	(2,430)
Effect of foreign exchange rate changes on cash		(132)	199
Net increase in cash, cash equivalents, and restricted cash		5,156	112
Cash, cash equivalents, and restricted cash at beginning of period	[1]	4,865	4,829
Cash, cash equivalents, and restricted cash at end of period	[1]	10,021	4,941
Excluding Variable Interest Entities (VIEs) [Member]
Cash flows from investing activities:
Capital expenditures		(654)	(504)
Deferred turnaround and catalyst cost expenditures		(529)	(808)
Cash flows from financing activities:
Proceeds from debt issuances and borrowings		2,700	5,599
Repayments of debt and finance lease obligations		(2,541)	(5,566)
Diamond Green Diesel Holdings LLC (DGD) [Member]
Cash flows from investing activities:
Capital expenditures		(4)	(67)
Deferred turnaround and catalyst cost expenditures		(40)	(91)
Cash flows from financing activities:
Proceeds from debt issuances and borrowings		550	400
Repayments of debt and finance lease obligations		(570)	(320)
Other VIEs [Member]
Cash flows from investing activities:
Capital expenditures		(3)	(5)
Cash flows from financing activities:
Repayments of debt and finance lease obligations		$ (21)	$ (27)

[1] Restricted cash is included in prepaid expenses and other in our consolidated balance sheets.