Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid in Capital	Accumulated Other Comprehensive Income	Retained Earnings
Beginning balance (in shares) at Dec. 31, 2020		52,656,067
Beginning balance at Dec. 31, 2020	$ 2,201	$ 1	$ 1,346	$ 47	$ 807
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	149				149
Total other comprehensive income	7			7
Shares issued from Employee Stock Purchase Plan (in shares)		62,462
Shares issued from the Employee Stock Purchase Plan	0
Stock-based compensation (in shares)		33,957
Stock-based compensation	4		4
Dividends declared and paid (in shares)		114
Dividends declared and paid	(3)				(3)
Ending balance (in shares) at Mar. 31, 2021		52,752,600
Ending balance at Mar. 31, 2021	2,358	$ 1	1,350	54	953
Beginning balance (in shares) at Dec. 31, 2021		53,197,650
Beginning balance at Dec. 31, 2021	2,718	$ 1	1,355	35	1,327
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	53				53
Total other comprehensive income	(37)			(37)
Stock-based compensation (in shares)		38,245
Stock-based compensation	2		2
Dividends declared and paid (in shares)		172
Dividends declared and paid	(3)				(3)
Ending balance (in shares) at Mar. 31, 2022		53,236,067
Ending balance at Mar. 31, 2022	$ 2,733	$ 1	$ 1,357	$ (2)	$ 1,377