Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Share-based Compensation, Restricted Stock Units Award Activity

The following table summarizes information about RSUs:

	2021			2020
	Shares	Weighted average fair value		Shares	Weighted average fair value
Outstanding - beginning of the year	6,560,372	$	6.27	4,480,847	$	9.51
Granted	2,100,126	8.36		4,123,544	3.92
Vested	(2,504,189)	6.72		(1,486,371)	9.65
Forfeited	(418,016)	6.61		(557,648)	5.06
Outstanding - end of the year	5,738,293	$	6.95	6,560,372	$	6.27

Schedule of Share-based Compensation, Performance Stock Units Award Activity

The following table summarizes share information about PSUs:

	2021			2020
	Shares	Weighted average fair value		Shares	Weighted average fair value
Outstanding - beginning of the year	1,730,002	$	9.31	2,778,362	$	10.09
Vested	(287,109)	9.33		(303,460)	4.00
Forfeited	(433,802)	9.33		(744,900)	11.57
Outstanding - end of the year	1,009,091	$	6.60	1,730,002	$	9.31

Schedule of Share-based Compensation, Stock Options, Activity

The following table summarizes information about stock option activity:

	2021			2020
	Shares	Per share weighted average exercise prices		Shares	Per share weighted average exercise prices
Options outstanding - beginning of the year	12,814,365	$	11.81	12,822,684	$	14.08
Granted	737,842	8.48		2,801,982	3.98
Exercised	(777,429)	6.11		(33,501)	6.82
Canceled	(604,101)	11.71		(1,653,126)	10.09
Expired	(1,050,608)	25.85		(1,123,674)	22.09
Options outstanding - end of the year	11,120,069	$	10.65	12,814,365	$	11.81
Options exercisable - end of the year	8,853,859	$	11.94	7,027,974	$	16.76

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

The following table provides additional information about stock options outstanding and exercisable at December 31, 2021:

	Options Outstanding				Options Exercisable
Range of per share exercise prices	Shares	Per share weighted-average exercise price		Weighted-average remaining contractual life	Shares	Per share weighted-average exercise price		Weighted-average remaining contractual life
$3.98 - $8.76	5,460,787	$	5.65	7.7 years	3,194,577	$	5.69	7.2 years
$12.64 - $16.88	4,857,128	$	14.40	4.5 years	4,857,128	$	14.40	4.5 years
$17.20 - $23.94	802,154	$	21.93	1.2 years	802,154	$	21.93	1.2 years
	11,120,069	$	10.64	5.8 years	8,853,859	$	11.94	5.2 years

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

The following table lists the weighted average of assumptions used to calculate the fair value of stock options granted:

	Years Ended December 31,
	2021		2020		2019
Expected dividend yield	2.4	%	5.0	%	3.0	%
Expected stock price volatility	70.0	%	43.0	%	41.5	%
Risk-free interest rate	1.1	%	1.5	%	2.5	%
Expected life	7 years		7 years		5 years
Weighted-average fair value per option granted	$4.53		$1.01		$1.98
Fair value of options granted	$3,342		$2,830		$1,722