Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Decrease (increase) in current assets:
Receivables, net	$ 257	$ 2,381
Inventories	(356)	(641)
Prepaid expenses and other	86	(37)
Increase (decrease) in current liabilities:
Accounts payable	(130)	(2,269)
Accrued expenses	(163)	(61)
Taxes other than income taxes payable	(102)	(23)
Income taxes payable	248	116
Changes in current assets and current liabilities	(160)	(534)
Cash flows related to interest and income taxes
Interest paid in excess of amount capitalized, including interest on finance leases	100	82
Income taxes paid, net	103	616
Operating cash flows
Operating Leases	124	102
Finance Leases	29	27
Financing cash flows
Finance Leases	56	49
Changes in lease balances resulting from new and modified leases, operating leases	153	67
Changes in lease balances resulting from new and modified leases, finance leases	186	$ 47
Supplemental Cash Flow Information (Textual)
Increase in noncontrolling interest, conversion of IEnova Revolver debt to equity	457
Variable Interest Entity, Primary Beneficiary [Member] \| IEnova Revolver [Member] \| Line of Credit [Member] \| Central Mexico Terminals [Member]
Supplemental Cash Flow Information (Textual)
Debt conversion, debt amount converted	$ 457

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