STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Schedule of pre-tax compensation expense and the related income tax benefit for these stock-based incentives

Pre-tax compensation expense (income) included in income from continuing operations for these stock-based incentives was as follows, in millions:


	2020		2019		2018
Long-term stock awards	$	14	$	20	$	20
Stock options	7		4		3
Restricted stock units	13		—		—
Performance restricted stock units	5		3		4
Phantom stock awards and stock appreciation rights	4		4		(2)
Total	$	43	$	31	$	25

Schedule of the Company's long-term stock award activity

Our long-term stock award activity was as follows, shares in millions:


	2020		2019		2018
Unvested stock award shares at January 1	2		2		3
Weighted average grant date fair value	$	34	$	30	$	24
Stock award shares granted	—		1		1
Weighted average grant date fair value	$	—	$	36	$	41
Stock award shares vested	1		1		2
Weighted average grant date fair value	$	32	$	25	$	21
Stock award shares forfeited	—		—		—
Weighted average grant date fair value	$	35	$	35	$	31
Unvested stock award shares at December 31	1		2		2
Weighted average grant date fair value	$	36	$	34	$	30

Information related to phantom stock awards was as follows, in millions:


	At December 31,
	2020		2019
Accrued compensation cost liability	$	6	$	5
Unrecognized compensation cost	$	4	$	3
Equivalent common shares	—		—

Schedule of the Company's stock option activity

Our stock option activity was as follows, shares in millions:


	2020			2019			2018
Option shares outstanding, January 1	3			4			5
Weighted average exercise price	$	27		$	21		$	16
Option shares granted	1			1			—
Weighted average exercise price	$	48		$	36		$	42
Option shares exercised	2			2			1
Aggregate intrinsic value on date of exercise (A)	$	29	million	$	33	million	$	55	million
Weighted average exercise price	$	17		$	13		$	11
Option shares forfeited	—			—			—
Weighted average exercise price	$	40		$	34		$	31



Option shares outstanding, December 31	2			3			4
Weighted average exercise price	$	33		$	27		$	21
Weighted average remaining option term (in years)	6			6			5
Option shares vested and expected to vest, December 31	2			3			4
Weighted average exercise price	$	33		$	27		$	21
Aggregate intrinsic value (A)	$	51	million	$	63	million	$	36	million
Weighted average remaining option term (in years)	6			6			5
Option shares exercisable (vested), December 31	1			2			3
Weighted average exercise price	$	28		$	21		$	16
Aggregate intrinsic value (A)	$	35	million	$	47	million	$	34	million
Weighted average remaining option term (in years)	5			4			4

______________________________

(A)Aggregate intrinsic value is calculated using our stock price at each respective date, less the exercise price (grant date price) multiplied by the number of shares.

Schedule of weighted average grant date fair value of option shares granted and the assumptions used to estimate those values using a Black-Scholes option pricing model

The weighted average grant date fair value of option shares granted and the assumptions used to estimate those values using a Black-Scholes option pricing model were as follows:


	2020			2019			2018
Weighted average grant date fair value	$	10.67		$	8.81		$	12.34
Risk-free interest rate	1.53		%	2.57		%	2.72		%
Dividend yield	1.14		%	1.35		%	1.02		%
Volatility factor	24.00		%	25.00		%	29.00		%
Expected option life	6 years			6 years			6 years

Summary of stock option shares outstanding and exercisable

The following table summarizes information for stock option shares outstanding and exercisable at December 31, 2020, shares in millions:


	Option Shares Outstanding				Option Shares Exercisable
	Range of Prices	Number of Shares	Weighted Average Remaining Option Term	Weighted Average Exercise Price	Number of Shares	Weighted Average Exercise Price
$	10 - 18	—	2 years	$18	—	$18
$	19 - 34	1	5 years	$26	1	$25
$	35 - 48	1	8 years	$41	—	$39
$	10 - 48	2	6 years	$33	1	$28