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OTHER INCOME/(LOSS) | 9 Months Ended
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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 Quarter |  | First Nine Months
| 2024 |  | 2025 |  | 2024 |  | 2025
Net periodic pension and OPEB income/(cost), excluding service cost (Note 11) | $ | (347) |  |  | $ | 19 |  |  | $ | (266) |  |  | $ | 44 |
Investment-related interest income | 367 |  |  | 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 affiliates | 66 |  |  | — |  |  | 90 |  |  | 8 |
Royalty income | 123 |  |  | 121 |  |  | 360 |  |  | 335 |
Other | (77) |  |  | 28 |  |  | (39) |  |  | 108 |
Total | $ | 114 |  |  | $ | 560 |  |  | $ | 1,240 |  |  | $ | 1,633 |

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- Definition The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 720 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/720/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Topic 610 -Publisher FASB -URI https://asc.fasb.org/610/tableOfContent + Details
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