Supplemental Cash Flow Information (Reconciliation Of Additions To Property, Plant And Equipment To Total Capital Expenditures) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Supplemental Cash Flow Information [Abstract]
Additions to property, plant and equipment per the consolidated statements of cash flows		$ 2,533	$ 1,890	$ 2,420
Increase (decrease) in capital accruals		34	184	(37)
Total capital expenditures	[1]	$ 2,567	$ 2,074	$ 2,383

[1] Includes changes in capital expenditure accruals. See Note 21 for a reconciliation of total capital expenditures to additions to property, plant and equipment as reported in the consolidated statements of cash flows