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Stock Compensation Plans (Tables)
 3 Months Ended
Mar. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-based Compensation Expense Stock-based compensation expense for the following periods were:
In millionsThree months ended March 31
20252024
Restricted stock units$8 $10 
Employee stock purchase plan1 1 
Stock-based compensation expense9 11 
Tax expense (benefit)
2 (1)
Stock-based compensation expense (net of tax)$11 $10 
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 rate3.86 %
Expected volatility48.34 %