Consolidated Statements of Changes in Equity - USD ($) shares in Millions, $ in Millions	Common Stock	Treasury Stock	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests	Redeemable Non-Controlling Interest [Member]	Total
Balance at beginning of period at Dec. 31, 2020	$ 0.6	$ (111.1)	$ 2,068.1	$ 3,705.4	$ (278.1)	$ 67.0		$ 5,451.9
Balance (in shares) at Dec. 31, 2020	600.7
Balance (in shares) at Dec. 31, 2020		(2.0)
Redeemable noncontrolling interest, balance at beginning of period at Dec. 31, 2020							$ 0.0
Increase (Decrease) In Equity
Net income, excluding portion attributable to redeemable noncontrolling interest				1,590.8		10.7		1,601.5
Net income, redeemable non-controlling interest							0.0
Net income								1,601.5
Other comprehensive income (loss)					(8.4)	1.6		(6.8)
Redeemable noncontrolling interest, other comprehensive income loss net of tax							0.0
Acquisitions resulting in noncontrolling interest						1.8	19.0	1.8
Purchase of noncontrolling interest			4.1			(15.3)		(11.2)
Distributions to shareholders of noncontrolling interests						(7.7)		(7.7)
Purchase of treasury stock		$ (661.7)						(661.7)
Purchase of treasury stock (in shares)		(9.3)
Retirement of treasury stock	$ 0.0	$ 608.9		(608.9)				0.0
Retirement of treasury stock (in shares)	(8.6)	8.6
Stock options exercised	$ 0.0	$ 63.9	253.8	(28.7)				289.0
Stock options exercised (in shares)	8.6	1.1
Dividends declared				(379.7)				(379.7)
Stock-based compensation expense			83.0					83.0
Balance at end of period at Dec. 31, 2021	$ 0.6	$ (100.0)	2,409.0	4,278.9	(286.5)	58.1		6,360.1
Balance (in shares) at Dec. 31, 2021	600.7
Balance (in shares) at Dec. 31, 2021		(1.6)
Redeemable noncontrolling interest, balance at end of period at Dec. 31, 2021							19.0
Increase (Decrease) In Equity
Net income, excluding portion attributable to redeemable noncontrolling interest				1,902.3		12.9		1,915.2
Net income, redeemable non-controlling interest							1.6
Net income								1,916.8
Other comprehensive income (loss)					(248.5)	(5.0)		(253.5)
Redeemable noncontrolling interest, other comprehensive income loss net of tax							0.0
Purchase of noncontrolling interest			(1.8)			(2.8)		(4.6)
Distributions to shareholders of noncontrolling interests						(5.3)		(5.3)
Purchase of treasury stock		$ (730.5)						(730.5)
Purchase of treasury stock (in shares)		(9.9)
Retirement of treasury stock	$ 0.0	$ 689.7		(689.7)				0.0
Retirement of treasury stock (in shares)	(9.3)	9.3
Stock options exercised	$ 0.0	$ 61.0	153.7	(29.5)				185.2
Stock options exercised (in shares)	4.6	1.0
Dividends declared				(482.6)				(482.6)
Stock-based compensation expense			89.5					89.5
Balance at end of period at Dec. 31, 2022	$ 0.6	$ (79.8)	2,650.4	4,979.4	(535.0)	57.9		$ 7,073.5
Balance (in shares) at Dec. 31, 2022	596.0							596.0
Balance (in shares) at Dec. 31, 2022		(1.2)						(1.2)
Redeemable noncontrolling interest, balance at end of period at Dec. 31, 2022							20.6	$ 20.6
Increase (Decrease) In Equity
Net income, excluding portion attributable to redeemable noncontrolling interest				1,928.0		15.6		1,943.6
Net income, redeemable non-controlling interest							1.9
Net income								1,945.5
Other comprehensive income (loss)					1.4	(1.2)		0.2
Redeemable noncontrolling interest, other comprehensive income loss net of tax							0.0
Acquisitions resulting in noncontrolling interest						1.0	8.2	1.0
Distributions to shareholders of noncontrolling interests						(24.0)		(24.0)
Purchase of treasury stock		$ (585.1)						(585.1)
Purchase of treasury stock (in shares)		(7.2)
Retirement of treasury stock	$ 0.0	$ 435.8		(435.8)				0.0
Retirement of treasury stock (in shares)	(5.5)	5.5
Stock options exercised	$ 0.0	$ 86.3	351.8	(43.1)				395.0
Stock options exercised (in shares)	10.1	1.2
Dividends declared				(507.4)				(507.4)
Stock-based compensation expense			99.0					99.0
Balance at end of period at Dec. 31, 2023	$ 0.6	$ (142.8)	$ 3,101.2	$ 5,921.1	$ (533.6)	$ 49.3		$ 8,395.8
Balance (in shares) at Dec. 31, 2023	600.6							600.6
Balance (in shares) at Dec. 31, 2023		(1.7)						(1.7)
Redeemable noncontrolling interest, balance at end of period at Dec. 31, 2023							$ 30.7	$ 30.7