Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Activities
Net income attributable to The Timken Company	$ 495.5	$ 454.3	$ 274.8
Net (loss) from discontinued operations	0	0	(7.4)
Net income attributable to noncontrolling interest	0.4	2.3	2.1
Adjustments to reconcile income from continuing operations before income taxes to net cash provided by operating activities:
Depreciation and amortization	198.0	192.5	189.7
Impairment charges	6.6	3.3	4.7
Loss on sale of assets	5.8	0.6	6.5
Deferred income tax provision	123.1	124.5	58.8
Stock-based compensation expense	18.0	16.9	16.9
Pension and other postretirement expense	91.5	74.9	93.1
Pension and other postretirement benefit contributions and payments	(412.7)	(456.0)	(337.0)
Changes in operating assets and liabilities:
Accounts receivable	103.0	(111.6)	(104.8)
Inventories	102.5	(125.6)	(150.0)
Accounts payable, trade	(73.2)	14.9	105.4
Other accrued expenses	(54.0)	29.1	68.3
Income taxes	21.7	9.2	97.2
Other, net	(0.3)	(17.6)	(13.0)
Net Cash Provided by Operating Activities - Continuing Operations	625.9	211.7	305.3
Net Cash Provided by Operating Activities - Discontinued Operations	0	0	7.4
Net Cash Provided by Operating Activities	625.9	211.7	312.7
Investing Activities
Capital expenditures	(297.2)	(205.3)	(115.8)
Acquisitions, net of cash acquired of $0.8 million in 2010	(20.7)	(292.1)	(22.6)
Proceeds from disposals of property, plant and equipment	2.0	5.7	1.9
Divestitures, net of cash divested of $0.9 million in 2012	1.2	4.8	0
Investments in short-term marketable securities, net	14.3	(22.7)	(15.0)
Other	2.7	1.6	(1.4)
Net Cash Used by Investing Activities	(297.7)	(508.0)	(152.9)
Financing Activities
Cash dividends paid to shareholders	(89.0)	(76.0)	(51.3)
Purchase of treasury shares	(112.3)	(43.8)	(29.2)
Net proceeds from common share activity	21.9	23.8	50.4
Proceeds from issuance of long-term debt	0	9.5	18.2
Deferred financing costs	0	(3.0)	0
Payments on long-term debt	(26.9)	(8.9)	(13.7)
Short-term debt activity, net	(7.7)	1.0	(3.8)
Decrease (increase) in restricted cash	3.6	(3.6)	0
Other	0	(5.6)	(3.5)
Net Cash Used by Financing Activities	(210.4)	(106.6)	(32.9)
Effect of exchange rate changes on cash	3.8	(9.4)	(5.3)
Increase (Decrease) In Cash and Cash Equivalents	121.6	(412.3)	121.6
Cash and cash equivalents at beginning of year	464.8	877.1	755.5
Cash and Cash Equivalents at End of Year	$ 586.4	$ 464.8	$ 877.1