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Supplemental Cash Flow Information (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Decrease (increase) in current assets:    
Receivables, net $ 1,225 $ (4,163)
Inventories (73) (1,056)
Prepaid expenses and other (55) (108)
Increase (decrease) in current liabilities:    
Accounts payable (1,909) 4,240
Accrued expenses (128) (126)
Taxes other than income taxes payable (136) 133
Income taxes payable (652) 952
Changes in current assets and current liabilities (1,728) (128)
Cash Flows Related to Interest and Income Taxes    
Interest paid in excess of amount capitalized, including interest on finance leases 273 291
Income taxes paid, net 2,410 916
Operating cash flows    
Operating Leases 206 196
Finance Leases 54 39
Financing cash flows    
Finance Leases 107 86
Changes in lease balances resulting from new and modified leases, Operating Leases 237 92
Changes in lease balances resulting from new and modified leases, Finance Leases $ 48 $ 164