The following table is a rollforward of the liability related to the restructuring charges:
| | | | | | | | | | | | | In millions of dollars | Personnel costs | Other | Total | | Beginning balance at January 1, 2023 | $ | — | | $ | — | | $ | — | | | Restructuring charges | $ | 687 | | $ | 94 | | $ | 781 | | Change in estimate(1) | — | | — | | — | | | Net restructuring charges | $ | 687 | | $ | 94 | | $ | 781 | | | Payments and utilization | — | | (69) | | (69) | | | Foreign exchange | — | | — | | — | | | Balance at December 31, 2023 | $ | 687 | | $ | 25 | | $ | 712 | | | Restructuring charges | $ | 354 | | $ | 54 | | $ | 408 | | Change in estimate(1)(2) | (146) | | (3) | | (149) | | | Net restructuring charges | $ | 208 | | $ | 51 | | $ | 259 | | | Payments and utilization | $ | (860) | | $ | (76) | | $ | (936) | | | Foreign exchange | 7 | | — | | 7 | | | Balance at December 31, 2024 | $ | 42 | | $ | — | | $ | 42 | | | Restructuring charges | $ | 1 | | $ | — | | $ | 1 | | Change in estimate(1) | (4) | | — | | (4) | | | Net restructuring charges | $ | (3) | | $ | — | | $ | (3) | | | Payments and utilization | $ | (13) | | $ | — | | $ | (13) | | | Foreign exchange | (6) | | — | | (6) | | | Balance at March 31, 2025 | $ | 20 | | $ | — | | $ | 20 | | | Restructuring charges | $ | — | | $ | — | | $ | — | | Change in estimate(1) | (2) | | — | | (2) | | | Net restructuring charges | $ | (2) | | $ | — | | $ | (2) | | | Payments and utilization | $ | (8) | | $ | — | | $ | (8) | | | Foreign exchange | 1 | | — | | 1 | | | Balance at June 30, 2025 | $ | 11 | | $ | — | | $ | 11 | | | | | | | | | | | | | | | | | | | | | | | | | |
(1) Revisions primarily relate to higher-than-anticipated redeployments of displaced employees to other positions within the Company, job function releveling and employee attrition. (2) Revisions primarily relate to lower-than-anticipated costs associated with contract terminations.
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