Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3,789.9	$ 3,580.8	$ 3,003.8
Cost of Goods and Services Sold	2,648.1	2,540.7	2,191.7
Gross Profit	1,141.8	1,040.1	812.1
Selling, general and administrative expenses	618.6	580.7	508.3
Impairment and restructuring charges	6.8	4.9	4.3
Operating Income	516.4	454.5	299.5
Interest expense	(72.1)	(51.7)	(37.1)
Interest income	4.9	2.1	2.9
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component	10.2	(6.2)	(15.0)
Other Nonoperating Income (Expense)	13.0	9.4	9.6
Income Before Income Taxes	472.4	408.1	259.9
Provision for income taxes	97.7	102.6	57.6
Net Income	374.7	305.5	202.3
Less: Net income (loss) attributable to noncontrolling interest	12.6	2.7	(1.1)
Net Income Attributable to The Timken Company	$ 362.1	$ 302.8	$ 203.4
Net Income per Common Share Attributable to The Timken Company Common Shareholders
Earnings Per Share, Basic	$ 4.78	$ 3.93	$ 2.62
Earnings Per Share, Diluted	4.71	3.86	$ 2.58
Dividends per share (in dollars per share)	$ 1.12	$ 1.11