Consolidated Statements of Changes in Equity and Redeemable Non-Controlling Interest - USD ($) $ in Millions	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)	Non- Controlling Interest in Consolidated Subsidiaries
Common stock, shares beginning (in shares) at Sep. 30, 2022		634,000,000
Treasury stock, shares beginning (in shares) at Dec. 31, 2021			(70,000,000)
Beginning balance at Dec. 31, 2021	$ 22,748	$ 6	$ (5,520)	$ 14,069	$ 14,350	$ (196)	$ 39
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive loss	(207)					(207)
Exercise of common stock options	$ 22			22
Repurchases of common stock (in shares)	(5,000,000)		(4,000,000)
Repurchases of common stock	$ (632)		$ (632)
Payments relating to treasury shares (in shares)			(1,000,000)
Payments relating to treasury shares	(72)		$ (72)
Stock-based compensation	129			129
Issuance under the employee stock purchase plan (in shares)		1,000,000
Issuance under the employee stock purchase plan	49			49
Issuance of restricted stock (in shares)		2,000,000
Distributions of profits	(35)						(35)
Dividends paid to stockholders	(640)				(640)
Net income/(loss) attributable to non-controlling interest	37				37		(37)
Net income (loss)	1,058				1,058
Common stock, shares ending (in shares) at Dec. 31, 2021		631,000,000
Treasury stock, shares ending (in shares) at Sep. 30, 2022			(75,000,000)
Ending balance at Sep. 30, 2022	22,420	$ 6	$ (6,224)	14,269	14,731	(403)	41
Common stock, shares beginning (in shares) at Sep. 30, 2022		634,000,000
Treasury stock, shares beginning (in shares) at Jun. 30, 2022			(75,000,000)
Beginning balance at Jun. 30, 2022	22,861	$ 6	$ (6,223)	14,201	15,135	(305)	47
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive loss	(98)					(98)
Exercise of common stock options	$ 2			2
Repurchases of common stock (in shares)	0
Payments relating to treasury shares	$ (1)		$ (1)
Stock-based compensation	41			41
Issuance under the employee stock purchase plan (in shares)		1,000,000
Issuance under the employee stock purchase plan	25			25
Distributions of profits	(22)						(22)
Dividends paid to stockholders	(213)				(213)
Net income/(loss) attributable to non-controlling interest	16				16		(16)
Net income (loss)	(175)				(175)
Common stock, shares ending (in shares) at Jun. 30, 2022		633,000,000
Treasury stock, shares ending (in shares) at Sep. 30, 2022			(75,000,000)
Ending balance at Sep. 30, 2022	$ 22,420	$ 6	$ (6,224)	14,269	14,731	(403)	41
Common stock, shares beginning (in shares) at Sep. 30, 2023	572,000,000	648,000,000
Treasury stock, shares beginning (in shares) at Dec. 31, 2022	(75,000,000)		(75,000,000)
Beginning balance at Dec. 31, 2022	$ 22,761	$ 6	$ (6,225)	14,313	14,943	(331)	55
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive loss	0					0
Stock consideration issued for acquisition (in shares)		11,000,000
Stock consideration issued for acquisition	1,256			1,256
Exercise of common stock options	$ 27			27
Repurchases of common stock (in shares)	0
Payments relating to treasury shares (in shares)			(1,000,000)
Payments relating to treasury shares	$ (53)		$ (53)
Stock-based compensation	198			198
Issuance under the employee stock purchase plan (in shares)		1,000,000
Issuance under the employee stock purchase plan	43			43
Contribution from equity partners	9						9
Issuance of restricted stock (in shares)		2,000,000
Distributions of profits	(64)						(64)
Dividends paid to stockholders	(713)				(713)
Net income/(loss) attributable to non-controlling interest	53				53		(53)
Net income (loss)	$ 2,048				2,048
Common stock, shares ending (in shares) at Dec. 31, 2022	559,000,000	634,000,000
Treasury stock, shares ending (in shares) at Sep. 30, 2023	(76,000,000)		(76,000,000)
Ending balance at Sep. 30, 2023	$ 25,512	$ 6	$ (6,278)	15,837	16,225	(331)	53
Common stock, shares beginning (in shares) at Sep. 30, 2023	572,000,000	648,000,000
Treasury stock, shares beginning (in shares) at Jun. 30, 2023			(76,000,000)
Beginning balance at Jun. 30, 2023	$ 23,889	$ 6	$ (6,276)	14,449	15,925	(284)	69
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive loss	(47)					(47)
Stock consideration issued for acquisition (in shares)		11,000,000
Stock consideration issued for acquisition	1,256			1,256
Exercise of common stock options	$ 3			3
Repurchases of common stock (in shares)	0
Payments relating to treasury shares	$ (2)		$ (2)
Stock-based compensation	104			104
Issuance under the employee stock purchase plan (in shares)		1,000,000
Issuance under the employee stock purchase plan	25			25
Distributions of profits	(34)						(34)
Dividends paid to stockholders	(241)				(241)
Net income/(loss) attributable to non-controlling interest	18				18		(18)
Net income (loss)	$ 559				559
Common stock, shares ending (in shares) at Jun. 30, 2023		636,000,000
Treasury stock, shares ending (in shares) at Sep. 30, 2023	(76,000,000)		(76,000,000)
Ending balance at Sep. 30, 2023	$ 25,512	$ 6	$ (6,278)	$ 15,837	$ 16,225	$ (331)	$ 53