Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non Controlling Interest
Beginning balance (in shares) at Dec. 31, 2021		60.4
Beginning balance at Dec. 31, 2021	$ 1,226.3	$ 0.6	$ 1,143.8	$ 157.3	$ (77.4)	$ 2.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock compensation (in shares)		0.4
Employee stock compensation	44.7		44.7
Deferred compensation	(0.8)		(2.6)	1.8
Proceeds from stock issuances under employee plans (in shares)		0.4
Proceeds from stock issuances under employee plans	30.7		30.7
Cash dividends declared	(113.5)			(113.5)
Repurchase and retirement of common shares (in shares)		(3.2)
Repurchase and retirement of common shares	(378.5)		(61.1)	(317.4)
Net income	252.1			251.6		0.5
Other comprehensive loss	(41.6)				(41.6)
Ending balance (in shares) at Sep. 30, 2022		58.0
Ending balance at Sep. 30, 2022	1,019.4	$ 0.6	1,155.5	(20.2)	(119.0)	2.5
Beginning balance (in shares) at Jun. 30, 2022		59.5
Beginning balance at Jun. 30, 2022	1,073.6	$ 0.6	1,161.4	3.1	(93.7)	2.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock compensation	15.9		15.9
Deferred compensation	(0.6)		(1.1)	0.5
Proceeds from stock issuances under employee plans (in shares)		0.2
Proceeds from stock issuances under employee plans	12.9		12.9
Cash dividends declared	(37.5)			(37.5)
Repurchase and retirement of common shares (in shares)		(1.7)
Repurchase and retirement of common shares	(206.2)		(33.6)	(172.6)
Net income	186.6			186.3		0.3
Other comprehensive loss	(25.3)				(25.3)
Ending balance (in shares) at Sep. 30, 2022		58.0
Ending balance at Sep. 30, 2022	1,019.4	$ 0.6	1,155.5	(20.2)	(119.0)	2.5
Beginning balance (in shares) at Dec. 31, 2022		57.0
Beginning balance at Dec. 31, 2022	1,101.5	$ 0.6	1,152.1	33.8	(87.5)	2.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock compensation (in shares)		0.4
Employee stock compensation	44.8		44.8
Deferred compensation	1.4		1.7	(0.3)
Proceeds from stock issuances under employee plans (in shares)		0.5
Proceeds from stock issuances under employee plans	50.9		50.9
Cash dividends declared	(110.6)			(110.6)
Repurchase and retirement of common shares (in shares)		(1.4)
Repurchase and retirement of common shares	(159.4)		(27.8)	(131.6)
Net income	399.4			399.4
Other comprehensive loss	7.2				7.2
Ending balance (in shares) at Sep. 30, 2023		56.5
Ending balance at Sep. 30, 2023	1,335.2	$ 0.6	1,221.7	190.7	(80.3)	2.5
Beginning balance (in shares) at Jun. 30, 2023		56.6
Beginning balance at Jun. 30, 2023	1,249.2	$ 0.6	1,186.9	122.1	(63.1)	2.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Employee stock compensation (in shares)		0.1
Employee stock compensation	15.2		15.2
Deferred compensation	4.4		2.2	2.2
Proceeds from stock issuances under employee plans (in shares)		0.3
Proceeds from stock issuances under employee plans	27.1		27.1
Cash dividends declared	(36.7)			(36.7)
Repurchase and retirement of common shares (in shares)		(0.5)
Repurchase and retirement of common shares	(58.3)		(9.7)	(48.6)
Net income	151.5			151.7		(0.2)
Other comprehensive loss	(17.2)				(17.2)
Ending balance (in shares) at Sep. 30, 2023		56.5
Ending balance at Sep. 30, 2023	$ 1,335.2	$ 0.6	$ 1,221.7	$ 190.7	$ (80.3)	$ 2.5