Stock Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2023

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
	2023		2022		2023		2022
Restricted stock units	$	28	$	22	$	90	$	76
Stock options	—		4		2		14
Employee stock purchase plan	2		2		6		7
Stock-based compensation expense	30		28		98		97
Tax benefit	(2)		(5)		(6)		(13)
Stock-based compensation expense (net of tax)	$	28	$	23	$	92	$	84

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 February 13, 2023:

Dividend yield	—	%
Risk-free interest rate	4.15	%
Expected volatility	55.90	%