STOCK COMPENSATION PLANS (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Share-based Payment Arrangement, Cost by Plan

As of December 31, 2022, the Company’s stock-based compensation consisted of restricted stock units, employee stock purchase plan and stock options. The Company recorded stock-based compensation expense for the years ended December 31 as follows:

In millions	2022		2021	2020
Restricted stock units	$	99	123	78
Stock options	17		23	24
Employee stock purchase plan	9		8	6
Stock-based compensation expense	125		154	108
Tax benefit	(14)		(18)	(13)
Total stock-based compensation (net of tax)	$	111	136	95

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity

The following table reports restricted stock unit activity during the year ended December 31, 2022:

Shares in thousands	Number of Units	Weighted Average Grant-Date Fair Value per Unit
Unvested shares as of January 1	7,922	$	32.86
Shares granted	6,284	$	35.08
Shares vested	(4,171)	$	27.97
Shares forfeited	(958)	$	36.53
Unvested shares as of December 31	9,077	$	35.67

The following table represents the composition of restricted stock unit grants in 2022:

Shares in thousands	Number of Units	Weighted Average Grant-Date Fair Value
Service-based units	2,667	$	30.58
Performance-based units	3,617	$	37.76
Total restricted stock units	6,284	$	35.08

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The table below details the assumptions used in determining the fair value of the market-based restricted stock units.

Dividend yield	—	%
Risk-free interest rate	1.73	%
Expected volatility	59.26	%

The table below details the significant assumptions used in determining the fair value of the market-based restricted stock units granted on December 21, 2022:

Dividend yield	—	%
Risk-free interest rate	3.90	%
Expected volatility	64.93	%

Share-based Payment Arrangement, Option, Activity

The following table summarizes the Company’s stock option activity for the year ended December 31, 2022:

Shares in thousands	Shares Under Option	Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in millions)
Outstanding as of January 1	9,079	$	32.96
Granted	—	$	—
Assumed through acquisition	217	$	1.21
Exercised	(255)	$	10.00
Forfeited or expired	(346)	$	33.87
Outstanding as of December 31	8,695	$	32.81	3.29	$	3.48
Fully vested and expected to vest as of December 31	1,863	$	34.08	3.97	$	0.82
Exercisable as of December 31	6,752	$	32.43	3.12	$	2.67