Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net sales	$ 1,025.4	$ 923.4
Cost of products sold	726.2	644.5
Gross Profit	299.2	278.9
Selling, general and administrative expenses	144.5	153.6
Impairment and restructuring charges	4.0	3.6
Operating Income	150.7	121.7
Interest expense	(14.9)	(17.1)
Interest income	0.5	1.5
Non-service pension and other postretirement income	4.0	3.4
Other income, net	1.0	4.1
Income Before Income Taxes	141.3	113.6
Provision for income taxes	25.3	29.6
Net Income	116.0	84.0
Less: Net income attributable to noncontrolling interest	2.7	3.3
Net Income Attributable to The Timken Company	$ 113.3	$ 80.7
Net Income per Common Share Attributable to The Timken Company Common Shareholders
Basic earnings per share (in dollars per share)	$ 1.49	$ 1.07
Diluted earnings per share (in dollars per share)	$ 1.47	$ 1.06