STOCK INCENTIVE PLANS

12 Months Ended

Dec. 31, 2021

The Company maintains stock incentive plans under which the Company may grant a variety of incentive awards to team members and executives, which include restricted stock units (RSUs), performance shares and deferred stock units. As of December 31, 2021, there were 2.1 million shares available for grant under the plans. When awards are exercised or settled, shares of the Company’s treasury stock are issued.

Pretax stock-based compensation expense included in SG&A was $42 million, $46 million, and $40 million in 2021, 2020 and 2019, respectively, and was primarily comprised of RSUs. Related income tax benefits recognized in earnings were $21 million, $16 million, and $12 million in 2021, 2020 and 2019, respectively.

Restricted Stock Units

The Company awards RSUs to certain team members and executives. RSUs vest generally over periods from one to seven years from issuance. RSU expense for the years ended December 31, 2021, 2020 and 2019 was approximately $30 million, $32 million and $27 million, respectively.

The following table summarizes RSU activity (in millions, except for share and per share amounts):


	2021				2020				2019
	Shares		Weighted Average Price Per Share		Shares		Weighted Average Price Per Share		Shares		Weighted Average Price Per Share
Beginning nonvested units	317,414		$	259.67	326,124		$	259.88	343,814		$	245.38
Issued	105,866		$	406.17	140,815		$	252.11	96,823		$	299.25
Canceled	(36,134)		$	274.74	(26,254)		$	257.56	(36,224)		$	253.22
Vested	(184,825)		$	276.34	(123,271)		$	252.05	(78,289)		$	247.96
Ending nonvested units	202,321		$	318.40	317,414		$	259.67	326,124		$	259.88
Fair value of shares vested	$	51			$	31			$	19

At December 31, 2021, there was $46 million of total unrecognized compensation expense related to nonvested RSUs that the Company expects to recognize over a weighted average period of 2.1 years.