Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Stated Capital	Other Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive (Loss)	Treasury Shares	Non- controlling Interest
Beginning balance at Dec. 31, 2021	$ 2,377.7	$ 40.7	$ 786.9	$ 1,616.4	$ (23.0)	$ (126.1)	$ 82.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	417.0			407.4			9.6
Foreign currency translation adjustments	(162.7)				(155.4)		(7.3)
Pension and other postretirement liability adjustments	(5.8)				(5.8)
Change in fair value of derivative financial instruments, net of reclassifications	2.3				2.3
Dividends declared to noncontrolling interest	(0.5)						(0.5)
Dividends	(91.7)			(91.7)
Stock-based compensation expense	30.4		30.4
Purchase of treasury shares	(211.6)					(211.6)
Shares surrendered for stock option activity	0.0		3.8			(3.8)
Stock option exercise activity	8.5		8.5
Payments related to tax withholding for stock-based compensation	(10.7)					(10.7)
Ending balance at Dec. 31, 2022	2,352.9	40.7	829.6	1,932.1	(181.9)	(352.2)	84.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	408.0			394.1			13.9
Foreign currency translation adjustments	33.5				35.3		(1.8)
Pension and other postretirement liability adjustments	(6.1)				(6.1)
Change in fair value of derivative financial instruments, net of reclassifications	(0.8)				(0.8)
Dividends declared to noncontrolling interest	(0.6)						(0.6)
Dividends	(94.0)			(94.0)
Sale of shares of Timken India Limited	229.0		194.5		8.1		26.4
Other ownership changes	(4.0)				(1.5)		(2.5)
Stock-based compensation expense	30.6		30.6
Purchase of treasury shares	(250.9)					(250.9)
Stock option exercise activity	21.8		21.8
Payments related to tax withholding for stock-based compensation	(17.0)					(17.0)
Ending balance at Dec. 31, 2023	2,702.4	40.7	1,076.5	2,232.2	(146.9)	(620.1)	120.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	375.3			352.7			22.6
Foreign currency translation adjustments	(161.2)				(156.4)		(4.8)
Pension and other postretirement liability adjustments	(6.0)				(6.0)
Change in fair value of derivative financial instruments, net of reclassifications	2.0				2.0
Dividends declared to noncontrolling interest	(1.1)						(1.1)
Dividends	(96.1)			(96.1)
Sale of shares of Timken India Limited	186.8		161.3		5.6		19.9
Other ownership changes	1.0						1.0
Stock-based compensation expense	25.9		25.9
Purchase of treasury shares	(40.5)					(40.5)
Stock option exercise activity	5.6		5.6
Payments related to tax withholding for stock-based compensation	(10.0)					(10.0)
Ending balance at Dec. 31, 2024	$ 2,984.1	$ 40.7	$ 1,269.3	$ 2,488.8	$ (301.7)	$ (670.6)	$ 157.6