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	(15)
Other	(171)
Net income (loss)	14
Balance, end of period at Jun. 30, 2023	239
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		543
Repurchases of common stock under repurchase program and employee plans		(907)	(3,352)				(1)
Issuances of common stock under employee plans		158
Contributions from (distributions to) noncontrolling interests, net						56
Other		(87)				(2)
Dividends declared			(2,439)
Net income	8,082		8,082
Other comprehensive income (loss)	1,139				1,179	(39)
Net income (loss)	(126)					(139)
Balance, end of period at Jun. 30, 2023	$ 84,679	39,118	53,900	(7,517)	(1,432)	559	50
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in dollars per share)	$ 0.58
Balance, beginning of period at Mar. 31, 2023	$ 422
Redeemable Noncontrolling Interests
Contributions from (distributions to) noncontrolling interests, net	(8)
Other	(171)
Net income (loss)	(3)
Balance, end of period at Jun. 30, 2023	239
Balance, beginning of period at Mar. 31, 2023		39,262	52,524	(7,517)	(1,898)	612	50
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation		250
Repurchases of common stock under repurchase program and employee plans		(386)	(1,664)
Issuances of common stock under employee plans		82
Contributions from (distributions to) noncontrolling interests, net						41
Other		(89)				(2)
Dividends declared			(1,208)
Net income	4,248		4,248
Other comprehensive income (loss)	429				466	(36)
Net income (loss)	(59)					(55)
Balance, end of period at Jun. 30, 2023	$ 84,679	39,118	53,900	(7,517)	(1,432)	559	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	(8)
Net income (loss)	3
Balance, end of period at Jun. 30, 2024	236
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		610
Repurchases of common stock under repurchase program and employee plans		(1,074)	(3,906)				(1)
Issuances of common stock under employee plans		132
Contributions from (distributions to) noncontrolling interests, net						147
Other		1
Dividends declared			(2,465)
Net income	7,785		7,785
Other comprehensive income (loss)	(582)				(569)	(13)
Net income (loss)	(169)					(172)
Balance, end of period at Jun. 30, 2024	$ 83,704	38,203	54,308	(7,517)	(1,822)	485	47
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in dollars per share)	$ 0.62
Balance, beginning of period at Mar. 31, 2024	$ 243
Redeemable Noncontrolling Interests
Contributions from (distributions to) noncontrolling interests, net	2
Net income (loss)	(9)
Balance, end of period at Jun. 30, 2024	236
Balance, beginning of period at Mar. 31, 2024		38,274	53,425	(7,517)	(1,680)	500	48
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation		287
Repurchases of common stock under repurchase program and employee plans		(428)	(1,825)				(1)
Issuances of common stock under employee plans		70
Contributions from (distributions to) noncontrolling interests, net						66
Dividends declared			(1,222)
Net income	3,929		3,929
Other comprehensive income (loss)	(142)				(142)
Net income (loss)	(89)					(81)
Balance, end of period at Jun. 30, 2024	$ 83,704	$ 38,203	$ 54,308	$ (7,517)	$ (1,822)	$ 485	$ 47
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends declared per common share (in dollars per share)	$ 0.31