Stock-Based Compensation

6 Months Ended

Jun. 30, 2022

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-Based Compensation    We had stock-based compensation expense of $2 million and $4 million for the three and six months ended June 30, 2022, respectively, and $4 million and $7 million for the three and six months ended June 30, 2021, respectively.

Restricted Stock and Restricted Stock Units

    The following table summarizes restricted stock and restricted stock units activity:

	Three Months Ended June 30, 2022			Six Months Ended June 30, 2022
	Shares	Weighted — Average Grant-Date Fair Value per Share		Shares		Weighted — Average Grant-Date Fair Value per Share
Restricted Stock and Restricted Stock Units
Non-vested balance at beginning of period	671,390	$	36.47	600,573		$	36.61
Granted	293,152	37.03		427,218		36.90
Vested	(133,442)	35.75		(177,198)		36.91
Canceled and forfeited	(29,723)	33.81		(49,216)		33.55
Non-vested balance at end of period	801,377	$	36.89	$	801,377	$	36.89