Variable Interest Entities (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Assets
Cash and cash equivalents	$ 4,634	$ 4,657
Property, plant, and equipment, net	28,549	29,314
Liabilities
Current liabilities, including current portion of debt and finance lease obligations	15,143	15,495
Debt and finance lease obligations, less current portion	10,312	9,720
Variable Interest Entity, Primary Beneficiary [Member]
Assets
Cash and cash equivalents	185	374
Other current assets	1,030	1,027
Property, plant, and equipment, net	4,492	4,517
Liabilities
Current liabilities, including current portion of debt and finance lease obligations	388	383
Debt and finance lease obligations, less current portion	635	642
Diamond Green Diesel Holdings LLC (DGD) [Member]
Assets
Cash and cash equivalents	153	353
Other current assets	985	976
Property, plant, and equipment, net	3,785	3,806
Liabilities
Current liabilities, including current portion of debt and finance lease obligations	320	304
Debt and finance lease obligations, less current portion	635	642
Central Mexico Terminals [Member]
Assets
Cash and cash equivalents	0	0
Other current assets	8	9
Property, plant, and equipment, net	643	647
Liabilities
Current liabilities, including current portion of debt and finance lease obligations	65	75
Debt and finance lease obligations, less current portion	0	0
Other VIEs [Member]
Assets
Cash and cash equivalents	32	21
Other current assets	37	42
Property, plant, and equipment, net	64	64
Liabilities
Current liabilities, including current portion of debt and finance lease obligations	3	4
Debt and finance lease obligations, less current portion	$ 0	$ 0