Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 38.1	$ 65.8
Other comprehensive income, net of tax:
Foreign currency translation adjustments	20.4	15.3
Pension and postretirement liability adjustment (net of the income tax benefit of $1.5 million)	0.1	0.4
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(0.8)	(2.3)
Other comprehensive income	19.7	13.4
Comprehensive Income	57.8	79.2
Less: comprehensive (loss) income attributable to noncontrolling interest	2.5	1.1
Comprehensive Income attributable to The Timken Company	$ 55.3	$ 78.1