Net Interest and Other Financial Costs (Net Interest and Other Financial Costs) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Income and Expenses [Abstract]
Interest income		$ (191)	$ (14)	$ (9)
Interest expense		1,299	1,340	1,462
Interest capitalized		(104)	(73)	(129)
Pension and other postretirement non-service costs	[1]	3	64	11
(Gain) loss on extinguishment of debt		2	133	(9)
Investments - net premium (discount) amortization		(30)	(1)	0
Other financial costs		21	34	39
Net interest and other financial costs		$ 1,000	$ 1,483	$ 1,365

[1] See Note 26.