CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Common Stock in Treasury at Cost
Balance at Dec. 31, 2020	$ 2,932.6	$ 0.7	$ 791.4	$ 2,793.5	$ (165.5)	$ (487.5)
Net income	403.2			403.2
Employee pension and postretirement benefits, net of tax	60.5				60.5
Currency translation adjustments	(28.0)				(28.0)
Gain on derivative instruments, net of tax	2.0				2.0
Cash dividends	(67.9)			(67.9)
Repurchases of Common Stock	(107.8)					(107.8)
Exercise of stock options	38.2		1.1			37.1
Stock-based compensation expense	20.6		20.6
Payment of stock-based restricted and performance shares			(8.1)			8.1
Shares tendered for taxes on stock-based compensation	(6.3)					(6.3)
Other	0.7		(0.4)	0.5		0.6
Balance at Sep. 30, 2021	3,247.8	0.7	804.6	3,129.3	(131.0)	(555.8)
Balance at Jun. 30, 2021	3,228.7	0.7	803.5	3,062.1	(174.8)	(462.8)
Net income	89.7			89.7
Employee pension and postretirement benefits, net of tax	58.2				58.2
Currency translation adjustments	(15.7)				(15.7)
Gain on derivative instruments, net of tax	1.3				1.3
Cash dividends	(22.5)			(22.5)
Repurchases of Common Stock	(94.8)					(94.8)
Exercise of stock options	0.7		0.1			0.6
Stock-based compensation expense	6.9		6.9
Payment of stock-based restricted and performance shares			(5.9)			5.9
Shares tendered for taxes on stock-based compensation	(4.7)					(4.7)
Balance at Sep. 30, 2021	3,247.8	0.7	804.6	3,129.3	(131.0)	(555.8)
Balance at Dec. 31, 2021	3,076.4	0.7	792.4	3,110.6	(128.6)	(698.7)
Net income	84.1			84.1
Employee pension and postretirement benefits, net of tax	1.2				1.2
Currency translation adjustments	(76.6)				(76.6)
Gain on derivative instruments, net of tax	11.0				11.0
Cash dividends	(73.1)			(73.1)
Repurchases of Common Stock	(155.0)					(155.0)
Exercise of stock options	2.8		(0.3)			3.1
Stock-based compensation expense	22.3		22.3
Payment of stock-based restricted and performance shares			(2.8)			2.8
Shares tendered for taxes on stock-based compensation	(1.7)					(1.7)
Other	(0.1)		(0.9)	(0.1)		0.9
Balance at Sep. 30, 2022	2,891.3	0.7	810.7	3,121.5	(193.0)	(848.6)
Balance at Jun. 30, 2022	2,877.0	0.7	802.5	3,086.4	(163.0)	(849.6)
Net income	59.3			59.3
Employee pension and postretirement benefits, net of tax	0.4				0.4
Currency translation adjustments	(36.2)				(36.2)
Gain on derivative instruments, net of tax	5.8				5.8
Cash dividends	(24.2)			(24.2)
Exercise of stock options	0.5		(0.1)			0.6
Stock-based compensation expense	8.8		8.8
Other	(0.1)		(0.5)			0.4
Balance at Sep. 30, 2022	$ 2,891.3	$ 0.7	$ 810.7	$ 3,121.5	$ (193.0)	$ (848.6)