STOCK-BASED AWARD PLANS (Tables)

12 Months Ended

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Share Based Compensation Expense By Award Type [Text Block]

Stock-based compensation expense is as follows (in millions, except for weighted average years):

	Total Stock-Based Compensation Expense						Unrecognized stock-based compensation expense		Weighted-average years to be recognized
	Year Ended December 31,
	2020		2019		2018		As of December 31, 2020
Restricted Stock Units	$	19	$	17	$	14	$	9	1.5
Performance Awards	$	9	$	6	$	5	$	4	1.7
Restricted Stock Awards	$	—	$	2	$	5	$	—	0.2
Stock Options	$	1	$	—	$	—	$	2	1.7
Tax benefit related to compensation expense	$	3	$	5	$	5

Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

Changes in nonvested RSUs as of December 31, 2020 were as follows (in thousands, except per share amounts):

	Number of Shares	Weighted-Average Grant Date Fair Value
Nonvested at the beginning of the year	2,272	$	15.86
Granted	2,075	$	10.75
Vested	(686)	$	15.80
Forfeited	(178)	$	13.58
Nonvested at the end of the year	3,483	$	12.84

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

The Monte Carlo valuation assumptions utilized for the TSR awards were:

	2020			2019			2018
Expected life (1)	2.81 years			2.82 years			2.82 years
Expected stock price volatility (2)	28.06		%	3.28		%	2.63		%
Risk-free interest rate (3)	0.56		%	2.48		%	2.38		%
Stock price (4)	$	10.95		$	16.35		$	14.80

(1)Represents the remaining performance measurement period as of the valuation date.

(2)Based on each entity’s historical stock price volatility over the remaining performance measurement period.

(3)The risk free rate equals the yield, as of the grant date, on zero coupon U.S. Treasury STRIPS that have a term equal to the length of the remaining performance measurement period.

(4)The stock price is the closing price of our common stock on the grant date.

The weighted-average assumptions used in the Black-Scholes option pricing model were as follows:

	2020 Grants
Expected stock price volatility	36.1		%
Risk-free interest rate	0.4		%
Expected life of options (in years)	5
Expected dividend yield	4.2		%
Weighted-average grant date fair value of the options	$	1.54

Share-based Payment Arrangement, Performance Shares, Activity [Table Text Block]

Changes in performance awards as of December 31, 2020 were as follows (in thousands, except per share amounts):

	Number of Shares	Weighted-Average Grant Date Fair Value
Nonvested at the beginning of the year	1,193	$	16.57
Granted	629	$	10.89
Vested	(410)	$	16.30
Forfeited	(22)	$	13.15
Nonvested at the end of the year	1,390	$	14.13

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

Changes in nonvested restricted stock awards as of December 31, 2020 were as follows (in thousands, except per share amounts):

	Number of Shares	Weighted-Average Grant Date Fair Value
Nonvested at the beginning of the year	242	$	16.26
Granted	26	$	8.41
Vested	(235)	$	16.30
Forfeited	(3)	$	15.90
Nonvested at the end of the year	30	$	9.12

Share-based Payment Arrangement, Option, Activity [Table Text Block]

The following table summarizes activity and balance information of the options under the Plan as of December 31, 2020:

	Shares	Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value (1)
	(in thousands, except per share amounts)
Outstanding at the beginning of the year	25	$	20.58
Granted	2,250	$	7.62
Exercised	—	$	—
Expired	—	$	—
Forfeited	—	$	—
Outstanding at the end of the year	2,275	$	7.76	5.8	$	12,398
Options exercisable at year end	25	$	20.58	3.5	$	—