Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 152.9	$ (68.0)	$ 173.3
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(32.8)	(73.5)	(41.8)
Pension and postretirement liability adjustment	(0.6)	265.9	(43.1)
Change in fair value of derivative financial instruments	0.1	1.1	(0.4)
Other comprehensive (loss) income, net of tax	(33.3)	193.5	(85.3)
Comprehensive Income, net of tax	119.6	125.5	88.0
Less: comprehensive income attributable to noncontrolling interest	2.0	0.8	2.0
Comprehensive Income Attributable to The Timken Company	$ 117.6	$ 124.7	$ 86.0