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OTHER INCOME/(LOSS)
9 Months Ended
Sep. 30, 2025
Other Income and Expenses [Abstract]  
OTHER INCOME/(LOSS) OTHER INCOME/(LOSS)
The amounts included in Other income/(loss), net for the periods ended September 30 were as follows (in millions):
Third QuarterFirst Nine Months
 2024202520242025
Net periodic pension and OPEB income/(cost), excluding service cost (Note 11)
$(347)$19 $(266)$44 
Investment-related interest income367 379 1,144 1,098 
Interest income/(expense) on income taxes
(1)(7)(24)(23)
Realized and unrealized gains/(losses) on cash equivalents, marketable securities, and other investments(17)20 (25)63 
Gains/(Losses) on changes in investments in affiliates66 — 90 
Royalty income123 121 360 335 
Other(77)28 (39)108 
Total$114 $560 $1,240 $1,633