Stock Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2024

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 September 30				Nine months ended September 30
	2024		2023		2024		2023
Restricted stock units	$	8	$	17	$	29	$	57
Stock options	—		—		—		2
Employee stock purchase plan	1		2		3		6
Stock-based compensation expense	9		19		32		65
Tax benefit (expense)	—		(1)		—		(4)
Stock-based compensation expense (net of tax)	$	9	$	18	$	32	$	61

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 15, 2024:

Dividend yield	—	%
Risk-free interest rate	4.44	%
Expected volatility	60.37	%