CONSOLIDATED STATEMENTS OF EQUITY (DEFICIT) AND REDEEMABLE NONCONTROLLING INTERESTS - USD ($) $ in Millions	Total	Class A Common Stock	Class B Common Stock	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss	Noncontrolling Interests
BALANCE at Dec. 31, 2020	$ 190
Increase (Decrease) in Temporary Equity
Distributions to noncontrolling interests, net	(6)
Net income (loss)	4
BALANCE at Mar. 31, 2021	188
BALANCE (in shares) at Dec. 31, 2020				49,252,671	24,727,682
BALANCE at Dec. 31, 2020	(1,185)			$ 1	$ 0	$ 721	$ (1,986)	$ (10)	$ 89
Increase (Decrease) in Stockholders' Equity
Dividends declared and paid on Class A and Class B Common Stock	(15)						(15)
Class B Common Stock converted into Class A Common Stock (in shares)				510,000	(510,000)
Class A Common Stock issued pursuant to employee benefit plans (in shares)				1,355,679
Class A Common Stock issued pursuant to employee benefit plans	14					14
Distributions to noncontrolling interests, net	(30)								(30)
Other comprehensive income	8							8
Net income (loss)	22						(12)		34
BALANCE (in shares) at Mar. 31, 2021				51,118,350	24,217,682
BALANCE at Mar. 31, 2021	(1,186)			$ 1	$ 0	735	(2,013)	(2)	93
BALANCE at Dec. 31, 2021	197
Increase (Decrease) in Temporary Equity
Distributions to noncontrolling interests, net	(1)
Deconsolidation of subsidiary	(16)
Net income (loss)	4
BALANCE at Mar. 31, 2022	184
BALANCE (in shares) at Dec. 31, 2021		49,314,303	23,775,056	49,314,303	23,775,056
BALANCE at Dec. 31, 2021	(1,706)			$ 1	$ 0	691	(2,460)	(2)	64
Increase (Decrease) in Stockholders' Equity
Dividends declared and paid on Class A and Class B Common Stock	$ (18)						(18)
Repurchases of Class A Common Stock (in shares)	(2,472,485)
Repurchases of Class A Common Stock	$ (68)					(68)
Class A Common Stock issued pursuant to employee benefit plans (in shares)				1,092,997
Class A Common Stock issued pursuant to employee benefit plans	34					34
Distributions to noncontrolling interests, net	(3)								(3)
Other comprehensive income	3							3
Deconsolidation of subsidiary	(151)							(3)	(148)
Net income (loss)	2,612						2,587		25
BALANCE (in shares) at Mar. 31, 2022		47,934,815	23,775,056	47,934,815	23,775,056
BALANCE at Mar. 31, 2022	$ 703			$ 1	$ 0	$ 657	$ 109	$ (2)	$ (62)