Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income Statement [Abstract]
Net sales	$ 1,089.9	$ 1,421.0
Cost of products sold	815.4	1,009.4
Gross Profit	274.5	411.6
Selling, general and administrative expenses	153.6	164.7
Impairment and restructuring charges	1.2	0.2
Operating Income	119.7	246.7
Interest expense	(6.4)	(8.6)
Interest income	0.5	0.7
Other (expense), net	0	(1.3)
Income Before Income Taxes	113.8	237.5
Provision for income taxes	38.8	81.5
Net Income	75.0	156.0
Less: Net (loss) income attributable to noncontrolling interest	(0.1)	0.3
Net Income Attributable to The Timken Company	$ 75.1	$ 155.7
Net Income per Common Share Attributable to The Timken Company Common Shareholders
Basic earnings per share	$ 0.78	$ 1.59
Diluted earnings per share	$ 0.77	$ 1.58
Dividends per share	$ 0.23	$ 0.23