Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Millions	Total	Additional Paid-In Capital	Retained Earnings	Treasury Stock at Cost	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests	Class A Common Stock Common Stock
Balance, beginning of period at Dec. 31, 2022	$ 411
Redeemable Noncontrolling Interests
Contributions from (distributions to) noncontrolling interests, net	(7)
Net income	17
Balance, end of period at Mar. 31, 2023	422
Balance, beginning of period at Dec. 31, 2022		$ 39,412	$ 51,609	$ (7,517)	$ (2,611)	$ 684	$ 51
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation		293
Repurchases of common stock under repurchase program and employee plans		(521)	(1,688)				0
Issuances of common stock under employee plans		76
Other		2
Dividends declared			(1,231)
Net income	3,834		3,834
Other comprehensive income (loss)	711				713	(3)
Contributions from (distributions to) noncontrolling interests, net						15
Net income (loss)	(67)					(84)
Balance, end of period at Mar. 31, 2023	$ 83,033	39,262	52,524	(7,517)	(1,898)	612	50
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in dollars per share)	$ 0.29
Balance, beginning of period at Dec. 31, 2023	$ 241
Redeemable Noncontrolling Interests
Contributions from (distributions to) noncontrolling interests, net	(10)
Net income	12
Balance, end of period at Mar. 31, 2024	243
Balance, beginning of period at Dec. 31, 2023	83,226	38,533	52,892	(7,517)	(1,253)	523	48
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation		323
Repurchases of common stock under repurchase program and employee plans		(645)	(2,082)				0
Issuances of common stock under employee plans		62
Other		1
Dividends declared			(1,243)
Net income	3,857		3,857
Other comprehensive income (loss)	(440)				(427)	(13)
Contributions from (distributions to) noncontrolling interests, net						81
Net income (loss)	(79)					(91)
Balance, end of period at Mar. 31, 2024	$ 83,049	$ 38,274	$ 53,425	$ (7,517)	$ (1,680)	$ 500	$ 48
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in dollars per share)	$ 0.31