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Supplemental Cash Flow Information (Tables)
 12 Months Ended
Dec. 31, 2023
Supplemental Cash Flow Information [Abstract]  
Schedule of cash flows, supplemental disclosures
In order to determine net cash provided by operating activities, net income is adjusted by, among other things, changes in current assets and current liabilities as follows (in millions):
Year Ended December 31,
202320222021
Increase in current assets:
Receivables, net$(387)$(1,619)$(4,382)
Inventories(684)(672)(253)
Prepaid expenses and other(34)(180)(22)
Increase (decrease) in current liabilities:
Accounts payable(169)521 6,301 
Accrued expenses(50)(5)253 
Taxes other than income taxes payable(226)98 104 
Income taxes payable(776)231 224 
Changes in current assets and current liabilities$(2,326)$(1,626)$2,225 
Cash flows related to interest and income taxes were as follows (in millions):
Year Ended December 31,
202320222021
Interest paid in excess of amount capitalized,
including interest on finance leases
$562 $570 $598 
Income taxes paid (refunded), net (see Note 15)
3,494 3,288 (842)
Supplemental cash flow information related to our operating and finance leases was as follows (in millions):
Year Ended December 31,
202320222021
Operating
Leases		Finance
Leases		Operating
Leases		Finance
Leases		Operating
Leases		Finance
Leases
Cash paid for amounts included
in the measurement of
lease liabilities:
Operating cash flows$428 $107 $395 $83 $397 $72 
Investing cash flows— — — — 1 — 
Financing cash flows— 250 — 180 — 135 
Changes in lease balances
resulting from new and
modified leases (a)
396 157 178 660 451 378 
________________________
(a)Noncash activity for the year ended December 31, 2022 primarily included approximately $500 million for a finance lease ROU asset and related liability recognized in connection with the completion of the DGD Port Arthur Plant described in Note 5.