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Stock Compensation Plans (Tables) | 6 Months Ended
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Jun. 30, 2025
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock-based Compensation Expense | Stock-based compensation expense for the following periods were:
In millions | Three months ended June 30 |  | Six months ended June 30
2025 |  | 2024 |  | 2025 |  | 2024
Restricted stock units | $ | 8 |  |  | $ | 11 |  |  | $ | 16 |  |  | $ | 21 |
Employee stock purchase plan | 1 |  |  | 1 |  |  | 2 |  | 2 |
Stock-based compensation expense | 9 |  |  | 12 |  |  | 18 |  | 23
Tax expense (benefit) | (1) |  |  | 1 |  |  | 1 |  |  | — |
Stock-based compensation expense (net of tax) | $ | 8 |  |  | $ | 13 |  |  | $ | 19 |  |  | $ | 23 |
Schedule of Valuation Assumptions Used to Estimate Fair Value of Stock Options | The table below details the significant assumptions used in determining the fair value of the market-based restricted stock units granted on March 3, 2025:
Dividend yield | — | %
Risk-free interest rate | 3.86 | %
Expected volatility | 48.34 | %

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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