Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Millions	Total	Class B Common Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance at Dec. 31, 2021	$ 789			$ 1,326	$ 241	$ (56)	$ (722)
Beginning balance, shares at Dec. 31, 2021		12,799,999	144,656,649				(18,844,614)
Net income (loss)	(34)				(34)
Other comprehensive income (loss), net of tax	(4)					(4)
Issuance of common stock related to exercises of options and vesting of RSUs, shares			980,051
Withholding taxes on net share settlements of equity awards	(8)			(8)
Stock-based compensation	24			24
Ending balance at Mar. 31, 2022	767			1,342	207	(60)	$ (722)
Ending balance, shares at Mar. 31, 2022		12,799,999	145,636,700				(18,844,614)
Beginning balance at Dec. 31, 2022	$ 861			1,404	261	(82)	$ (722)
Beginning balance, shares at Dec. 31, 2022	128,046,924	12,799,999	146,891,538				(18,844,614)
Net income (loss)	$ (73)				(73)
Other comprehensive income (loss), net of tax	4					4
Issuance of common stock related to exercises of options and vesting of RSUs, shares			1,199,295
Withholding taxes on net share settlements of equity awards	(9)			(9)
Stock-based compensation	25			25
Ending balance at Mar. 31, 2023	$ 808			$ 1,420	$ 188	$ (78)	$ (722)
Ending balance, shares at Mar. 31, 2023	129,246,219	12,799,999	148,090,833				(18,844,614)