Other Income/(Loss) (Tables)

6 Months Ended

Jun. 30, 2021

Other Income and Expenses [Abstract]

Schedule of Other Nonoperating Income (Expense) [Table Text Block]

The amounts included in Other income/(loss), net for the periods ended June 30 were as follows (in millions):

	Second Quarter				First Half
	2020		2021		2020		2021
Net periodic pension and OPEB income/(cost), excluding service cost	$	544	$	768	$	995	$	1,380
Investment-related interest income	122		64		284		136
Interest income/(expense) on income taxes	12		—		(11)		(3)
Realized and unrealized gains/(losses) on cash equivalents, marketable securities, and other investments (Note 10)	47		7		15		906
Gains/(Losses) on changes in investments in affiliates (Note 17)	3,465		166		3,480		332
Royalty income	94		128		183		299
Other	34		26		52		(19)
Total	$	4,318	$	1,159	$	4,998	$	3,031