Condensed Consolidated Statement of Equity Statement - USD ($) shares in Millions, $ in Millions	Total	Preferred stock	Common stock	Additional paid-in capital	Accumulated Other Comprehensive Income	Retained earnings	Treasury stock	Parent	Noncontrolling interest
Beginning balance, shares at Dec. 31, 2022		0.0	167.9
Beginning balance at Dec. 31, 2022	$ 13,388.4	$ 0.0	$ 0.1	$ 73.3	$ (164.9)	$ 16,466.5	$ (2,977.1)	$ 13,397.9	$ (9.5)
Beginning balance, treasury stock, shares at Dec. 31, 2022							(23.8)
Net income	912.6					911.4		911.4	1.2
Other comprehensive income (loss), net of tax	5.6				5.6			5.6
Capital contribution from noncontrolling interest	4.2								4.2
Issuance of common stock under stock option and stock purchase plans, shares			0.2
Issuance of common stock under stock option and stock purchase plans	38.7			38.7				38.7
Issuance of common stock under stock award plan, shares			0.6
Issuance of common stock under stock award plan	(86.7)			(86.7)				(86.7)
Compensation related to share-based payments	217.8			217.8				217.8
Other	(0.9)			(0.9)				(0.9)
Ending balance at Sep. 30, 2023	14,479.7	$ 0.0	$ 0.1	242.2	(159.3)	17,377.9	$ (2,977.1)	14,483.8	(4.1)
Ending balance, shares at Sep. 30, 2023		0.0	168.7
Ending balance, treasury stock, shares at Sep. 30, 2023							(23.8)
Beginning balance, shares at Jun. 30, 2023		0.0	168.6
Beginning balance at Jun. 30, 2023	14,460.5	$ 0.0	$ 0.1	170.7	(172.8)	17,446.0	$ (2,977.1)	14,466.9	(6.4)
Beginning balance, treasury stock, shares at Jun. 30, 2023							(23.8)
Net income	(68.3)					(68.1)		(68.1)	(0.2)
Other comprehensive income (loss), net of tax	13.5				13.5			13.5
Capital contribution from noncontrolling interest	2.5								2.5
Issuance of common stock under stock option and stock purchase plans, shares			0.1
Issuance of common stock under stock option and stock purchase plans	9.3			9.3				9.3
Issuance of common stock under stock award plan, shares			0.0
Issuance of common stock under stock award plan	(2.7)			(2.7)				(2.7)
Compensation related to share-based payments	64.8			64.8				64.8
Other	0.1			0.1				0.1
Ending balance at Sep. 30, 2023	14,479.7	$ 0.0	$ 0.1	242.2	(159.3)	17,377.9	$ (2,977.1)	$ 14,483.8	$ (4.1)
Ending balance, shares at Sep. 30, 2023		0.0	168.7
Ending balance, treasury stock, shares at Sep. 30, 2023							(23.8)
Beginning balance, shares at Dec. 31, 2023		0.0	168.7
Beginning balance at Dec. 31, 2023	14,799.4	$ 0.0	$ 0.1	302.5	(153.7)	17,627.6	$ (2,977.1)
Beginning balance, treasury stock, shares at Dec. 31, 2023							(23.8)
Net income	1,365.5					1,365.5
Other comprehensive income (loss), net of tax	8.0				8.0
Issuance of common stock under stock option and stock purchase plans, shares			0.2
Issuance of common stock under stock option and stock purchase plans	31.2			31.2
Issuance of common stock under stock award plan, shares			0.6
Issuance of common stock under stock award plan	(66.0)			(66.0)
Compensation related to share-based payments	224.0			224.0
Other	(3.2)			(3.2)
Ending balance at Sep. 30, 2024	16,358.9	$ 0.0	$ 0.1	488.5	(145.7)	18,993.1	$ (2,977.1)
Ending balance, shares at Sep. 30, 2024		0.0	169.5
Ending balance, treasury stock, shares at Sep. 30, 2024							(23.8)
Beginning balance, shares at Jun. 30, 2024		0.0	169.5
Beginning balance at Jun. 30, 2024	15,889.1	$ 0.0	$ 0.1	407.5	(146.0)	18,604.6	$ (2,977.1)
Beginning balance, treasury stock, shares at Jun. 30, 2024							(23.8)
Net income	388.5					388.5
Other comprehensive income (loss), net of tax	0.3				0.3
Issuance of common stock under stock option and stock purchase plans, shares			0.0
Issuance of common stock under stock option and stock purchase plans	7.6			7.6
Issuance of common stock under stock award plan, shares			0.0
Issuance of common stock under stock award plan	(1.6)			(1.6)
Compensation related to share-based payments	75.0			75.0
Other	0.0			0.0
Ending balance at Sep. 30, 2024	$ 16,358.9	$ 0.0	$ 0.1	$ 488.5	$ (145.7)	$ 18,993.1	$ (2,977.1)
Ending balance, shares at Sep. 30, 2024		0.0	169.5
Ending balance, treasury stock, shares at Sep. 30, 2024							(23.8)