Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net sales	$ 2,669.8	$ 2,872.3	$ 3,076.2
Cost of products sold	1,975.0	2,078.4	2,178.2
Gross Profit	694.8	793.9	898.0
Selling, general and administrative expenses	450.0	494.3	542.5
Impairment and restructuring charges	21.7	14.7	113.4
Gain (Loss) on Disposition of Business	0.0	(28.7)	0.0
Pension Settlement Charges	28.1	465.0	33.7
Operating Income (Loss)	195.0	(151.4)	208.4
Interest expense	(33.5)	(33.4)	(28.7)
Interest income	1.9	2.7	4.4
Continued Dumping And Subsidy Offset Act Receipt Net Of Expenses	59.6	0.0	0.0
Gains (Losses) on Sales of Other Real Estate	0.0	0.0	22.6
Other Nonoperating Income (Expense)	(0.9)	(7.5)	(2.7)
Income (Loss) From Continuing Operations Before Income Taxes	222.1	(189.6)	204.0
Provision (benefit) for income taxes	69.2	(121.6)	54.7
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	152.9	(68.0)	149.3
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0.0	0.0	24.0
Net Income (Loss)	152.9	(68.0)	173.3
Less: Net income attributable to noncontrolling interest	0.3	2.8	2.5
Net Income (Loss) Attributable to The Timken Company	152.6	(70.8)	170.8
Income (Loss) from Continuing Operations Attributable to Parent	$ 152.6	$ (70.8)	$ 146.8
Net Income (Loss) per Common Share Attributable to The Timken Company Common Shareholders
Income (Loss) from Continuing Operations, Per Basic Share	$ 1.94	$ (0.84)	$ 1.62
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0	0	0.27
Basic earnings per share (in dollars per share)	1.94	(0.84)	1.89
Income (Loss) from Continuing Operations, Per Diluted Share	1.92	(0.84)	1.61
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	0	0	0.26
Diluted earnings per share (in dollars per share)	1.92	(0.84)	1.87
Dividends per share (in dollars per share)	$ 1.04	$ 1.03	$ 1.00