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Share Repurchase Transactions and Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 30, 2025
Equity [Abstract] |
Components of Accumulated Other Comprehensive Loss | The components of accumulated other comprehensive loss are as follows (dollars in millions):
| Unrealized Gains (Losses) on Available-for-Sale Securities |  |  | Foreign Currency Translation Adjustments |  |  | Defined Benefit Plans |  |  | Total |
Balances at December 31, 2024 | $ | (21 | ) |  | $ | (353 | ) |  | $ | (13 | ) |  | $ | (387 | )
Unrealized gains on available-for-sale securities, net of $3 of income taxes |  | 9 |  |  |  |  |  |  |  |  |  | 9 |
Foreign currency translation adjustments, net of $10 of income taxes |  |  |  |  | 61 |  |  |  |  |  |  | 61 |
Balances at September 30, 2025 | $ | (12 | ) |  | $ | (292 | ) |  | $ | (13 | ) |  | $ | (317 | )

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