Net Interest and Other Financial Costs (Net Interest and Other Financial Costs) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other Income and Expenses [Abstract]
Interest income		$ (530)	$ (191)	$ (14)
Interest expense		1,325	1,299	1,340
Interest capitalized		(60)	(104)	(73)
Pension and other postretirement non-service costs	[1]	(89)	3	64
Loss on extinguishment of debt		9	2	133
Investments - net premium (discount) amortization		(142)	(30)	(1)
Other financial costs		12	21	34
Net interest and other financial costs		$ 525	$ 1,000	$ 1,483

[1] See Note 25.