Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income		$ 2,649	$ 7,931
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense		2,076	2,011
Gain on early retirement of debt, net		0	(11)
Deferred income tax expense (benefit)		(78)	32
Changes in current assets and current liabilities		795	(1,695)
Changes in deferred charges and credits and other operating activities, net		171	(278)
Net cash provided by operating activities		5,613	7,990
Cash flows from investing activities:
Purchases of available-for-sale (AFS) debt securities		(17)	(237)
Proceeds from sales and maturities of AFS debt securities		79	220
Other investing activities, net		11	11
Net cash used in investing activities		(1,437)	(1,382)
Cash flows from financing activities:
Premiums paid on early retirement of debt		0	(5)
Purchases of common stock for treasury		(2,616)	(4,180)
Common stock dividend payments		(1,045)	(1,106)
Contributions from noncontrolling interests		90	75
Distributions to noncontrolling interests		(113)	(164)
Other financing activities, net		(1)	3
Net cash used in financing activities		(4,265)	(5,645)
Effect of foreign exchange rate changes on cash		19	6
Net increase (decrease) in cash, cash equivalents, and restricted cash		(70)	969
Cash and cash equivalents at beginning of period		5,424	4,862
Cash, cash equivalents, and restricted cash at end of period	[1]	5,354	5,831
Excluding Variable Interest Entities (VIEs) [Member]
Cash flows from investing activities:
Capital expenditures		(399)	(468)
Deferred turnaround and catalyst cost expenditures		(844)	(665)
Cash flows from financing activities:
Proceeds from debt borrowings		5,200	1,750
Repayments of debt and finance lease obligations		(5,521)	(2,071)
Diamond Green Diesel Holdings LLC (DGD) [Member]
Cash flows from investing activities:
Capital expenditures		(198)	(183)
Deferred turnaround and catalyst cost expenditures		(62)	(56)
Cash flows from financing activities:
Proceeds from debt borrowings		250	500
Repayments of debt and finance lease obligations		(519)	(474)
Other VIEs [Member]
Cash flows from investing activities:
Capital expenditures		(7)	(4)
Cash flows from financing activities:
Proceeds from borrowings of other VIEs		23	86
Repayments of debt and finance lease obligations		$ (13)	$ (59)

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