Supplemental Income Statement Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Other Income and Expenses [Abstract]
Interest expense	$ 123	$ 113
Interest income	(40)	(8)
Pension and postretirement net periodic benefit cost (benefit)	(31)	(67)
Total	$ 52	$ 38