Stockholders' Deficit - Schedule of Stockholders' Deficit (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021
Equity, beginning balance	$ (1,312)	$ (1,290)	$ (1,595)	$ (1,538)
Redeemable Noncontrolling Interests, beginning balance		480
Comprehensive income (loss)	(324)	6	14	(59)
Distributions to noncontrolling interests	(5)	(17)	(14)	(9)
Purchases of subsidiary shares from noncontrolling interests		(1)
Other reclassifications of noncontrolling interests			(1)
Noncontrolling interest in acquired entity	2
Adjustment to redemption value of redeemable noncontrolling interests	(20)	(7)	(25)	7
Cancellation of restricted stock for tax withholdings on vested shares		(8)		(4)
Share-based compensation	3	5	5	8
Equity, ending balance	(1,656)	(1,312)	(1,616)	(1,595)
Redeemable Noncontrolling Interests, ending balance	498
Redeemable Noncontrolling Interests (Non- Equity)
Redeemable Noncontrolling Interests, beginning balance	493	480	481	484
Comprehensive income (loss)	21
Comprehensive income (loss) attributable to redeemable noncontrolling interest		16	24	21
Distributions to noncontrolling interests	(39)
Distributions to redeemable noncontrolling interests		(12)	(31)	(12)
Dispositions of less-than-wholly owned business				(7)
Purchases of subsidiary shares from noncontrolling interests		1	(2)
Contributions from noncontrolling interests		1
Other reclassifications of redeemable noncontrolling interests			1
Noncontrolling interest in acquired entity	3			2
Adjustment to redemption value of redeemable noncontrolling interests	20	7	25	(7)
Redeemable Noncontrolling Interests, ending balance	498	493	498	481
Common Stock
Equity, beginning balance	1	1	1	1
Equity, ending balance	1	1	1	1
Additional Paid-in Capital
Equity, beginning balance	2,107	2,118	2,105	2,094
Purchases of subsidiary shares from noncontrolling interests		(1)
Other reclassifications of noncontrolling interests			(1)
Adjustment to redemption value of redeemable noncontrolling interests	(20)	(7)	(25)	7
Cancellation of restricted stock for tax withholdings on vested shares		(8)		(4)
Share-based compensation	3	5	5	8
Equity, ending balance	2,090	2,107	2,084	2,105
Accumulated Other Comprehensive (Income) Loss
Equity, beginning balance	(22)	(14)	(16)	(13)
Comprehensive income (loss)	(6)	(8)	1	(3)
Equity, ending balance	(27)	(22)	(15)	(16)
Accumulated Deficit
Equity, beginning balance	(3,478)	(3,477)	(3,771)	(3,707)
Comprehensive income (loss)	(326)	(1)	6	(64)
Equity, ending balance	(3,804)	(3,478)	(3,765)	(3,771)
Noncontrolling Interest
Equity, beginning balance	80	82	86	87
Comprehensive income (loss)	7	15	7	8
Distributions to noncontrolling interests	(5)	(17)	(14)	(9)
Noncontrolling interest in acquired entity	2
Equity, ending balance	$ 84	$ 80	$ 79	$ 86