Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Effect of Fourth Quarter Events [Line Items]
Net sales	$ 1,082.0	$ 1,136.4	$ 1,153.7	$ 1,124.6	$ 1,007.3	$ 1,037.3	$ 1,062.9	$ 1,025.4	$ 4,496.7	$ 4,132.9	$ 3,513.2
Gross profit	296.1	322.8	341.8	327.4	233.1	267.9	302.3	299.2	1,288.1	1,102.5	1,009.9
Selling, general and administrative expenses	167.3	159.8	155.9	154.1	146.3	140.7	149.0	144.5	637.1	580.5	533.8
Impairment and restructuring charges	1.8	31.3	10.0	1.0	0.7	2.9	1.3	4.0	44.1	8.9	21.2
Net Income	99.1	90.4	105.6	121.9	66.7	91.6	107.2	116.0	417.0	381.5	292.4
Net income attributable to noncontrolling interests	1.9	3.4	0.6	3.7	3.8	3.5	2.4	2.7	9.6	12.4	7.9
Net Income Attributable to The Timken Company	$ 97.2	$ 87.0	$ 105.0	$ 118.2	$ 62.9	$ 88.1	$ 104.8	$ 113.3	$ 407.4	$ 369.1	$ 284.5
Net income per share - Basic (in dollars per share)	$ 1.34	$ 1.19	$ 1.43	$ 1.58	$ 0.83	$ 1.16	$ 1.38	$ 1.49	$ 5.54	$ 4.86	$ 3.78
Net income per share - Diluted (in dollars per share)	1.32	1.18	1.42	1.56	0.82	1.14	1.36	1.47	5.48	4.79	$ 3.72
Dividends per share (in dollars per share)	$ 0.31	$ 0.31	$ 0.31	$ 0.30	$ 0.30	$ 0.30	$ 0.30	$ 0.29	$ 1.23	$ 1.19
Pension and Other Postretirement Benefits Cost (Reversal of Cost)									$ (0.6)	$ (6.6)	$ 17.4
Actuarial gain (loss)	$ 12.3		$ (11.6)		$ 8.0	$ (3.9)	$ (3.5)
Valuation allowance changes					$ 7.8
Held-for-sale | ADS
Effect of Fourth Quarter Events [Line Items]
Impairment charge on reclassified assets		$ 29.3							$ 29.3