Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 66.7	$ 72.3	$ 256.9	$ 244.7
Other comprehensive income, net of tax:
Foreign currency translation adjustments	(63.0)	(24.3)	(62.1)	(62.5)
Pension and postretirement liability adjustment (net of the income tax benefit of $1.5 million)	76.7	0.0	76.6	0.0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	1.9	(0.4)	0.5	4.0
Other comprehensive income	15.6	(24.7)	15.0	(58.5)
Comprehensive Income	82.3	47.6	271.9	186.2
Less: comprehensive (loss) income attributable to noncontrolling interest	0.7	(5.1)	8.1	(6.8)
Comprehensive Income attributable to The Timken Company	$ 81.6	$ 52.7	$ 263.8	$ 193.0

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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