Net Interest and Other Financial Costs (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Other Income and Expenses [Abstract]
Interest income		$ (102)	$ (141)	$ (308)	$ (381)
Interest expense		352	331	1,034	994
Interest capitalized		(15)	(11)	(40)	(47)
Pension and other postretirement non-service costs	[1]	(8)	(20)	(30)	(68)
Loss on extinguishment of debt		0	0	0	9
Investments - net premium (discount) amortization		(20)	(41)	(90)	(100)
Other financial costs		14	0	28	7
Net interest and other financial costs		$ 221	$ 118	$ 594	$ 414

[1] See Note 22.