CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Class B common stock	Common stock	Common stock Class B common stock	Additional paid-in capital	Treasury stock - Common and Class B	Retained earnings (deficit)	Accumulated other comprehensive income (loss)	Non-redeemable non-controlling interest
Beginning balance (in shares) at Dec. 31, 2021			274,660,725	12,799,999
Beginning balance at Dec. 31, 2021	$ 3,552		$ 0	$ 0	$ 14,229	$ (10,262)	$ (1,761)	$ (149)	$ 1,495
Beginning balance (in shares) at Dec. 31, 2021						131,812,764
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	343						352		(9)
Other comprehensive income (loss), net of taxes	(106)							(85)	(21)
Proceeds from exercise of equity instruments and employee stock purchase plans (in shares)			3,603,510
Proceeds from exercise of equity instruments and employee stock purchase plans	131				131
Treasury stock activity related to vesting of equity instruments (in shares)						768,173
Treasury stock activity related to vesting of equity instruments	$ (107)					$ (107)
Common stock repurchases (in shares)	5,200,000					5,202,492
Common stock repurchases	$ (500)					$ (500)
Other changes in ownership of non-controlling interests	4				24				(20)
Stock-based compensation expense	411				411
Ending balance (in shares) at Dec. 31, 2022			278,264,235	12,799,999
Ending balance at Dec. 31, 2022	3,728		$ 0	$ 0	14,795	$ (10,869)	(1,409)	(234)	1,445
Ending balance (in shares) at Dec. 31, 2022						137,783,429
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	688						797		(109)
Other comprehensive income (loss), net of taxes	27							25	2
Proceeds from exercise of equity instruments and employee stock purchase plans (in shares)			3,884,341
Proceeds from exercise of equity instruments and employee stock purchase plans	101				101
Withholding taxes for stock options	(7)				(7)
Treasury stock activity related to vesting of equity instruments (in shares)						973,946
Treasury stock activity related to vesting of equity instruments	$ (106)					$ (106)
Common stock repurchases (in shares)	19,100,000					19,145,610
Common stock repurchases	$ (2,031)					$ (2,031)
Other changes in ownership of non-controlling interests	(70)				16				(86)
Stock-based compensation expense	474				474
Other	$ (18)				19	(17)	(20)
Ending balance (in shares) at Dec. 31, 2023	131,522,000	5,523,000	282,148,576	12,799,999
Ending balance at Dec. 31, 2023	$ 2,786		$ 0	$ 0	15,398	$ (13,023)	(632)	(209)	1,252
Ending balance (in shares) at Dec. 31, 2023	157,903,000	7,300,000				157,902,985
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 1,224						1,234		(10)
Other comprehensive income (loss), net of taxes	(28)							(23)	(5)
Proceeds from exercise of equity instruments and employee stock purchase plans (in shares)			5,360,219
Proceeds from exercise of equity instruments and employee stock purchase plans	116				116
Withholding taxes for stock options	(2)				(2)
Treasury stock activity related to vesting of equity instruments (in shares)						1,539,783
Treasury stock activity related to vesting of equity instruments	$ (206)					$ (206)
Common stock repurchases (in shares)	12,100,000					12,071,915
Common stock repurchases	$ (1,616)					$ (1,616)
Other changes in ownership of non-controlling interests	5								5
Stock-based compensation expense	531				531
Other	$ (11)					(11)
Ending balance (in shares) at Dec. 31, 2024	123,271,000	5,523,000	287,508,795	12,799,999
Ending balance at Dec. 31, 2024	$ 2,799		$ 0	$ 0	$ 16,043	$ (14,856)	$ 602	$ (232)	$ 1,242
Ending balance (in shares) at Dec. 31, 2024	171,515,000	7,300,000				171,514,683