Fair Value (Details 1) (USD $) In Millions	6 Months Ended
Jun. 30, 2011
Long-lived assets adjusted to fair value
Inventories at carrying value	$ 4.7
Inventories at fair value adjustment	(3.2)
Inventories, fair value	1.5
Equity Method Investments at carrying value	6.9
Equity Method Investment at fair value adjustment	(2.8)
Equity investments, fair value	4.1
Assets held for sale at carrying value	11.6
Assets held for sale fair value adjustment	(6.0)
Assets held for sale fair value	5.6
Long lived fixed assets held and used at carrying value	0.4
Long lived fixed assets held and used at fair value adjustment	(0.4)
Long lived fixed assets held and used at fair value	0
Total Assets Prior to Adjustment to Fair Value	12.0
Fair value adjustment for total assets written down during the period	(6.4)
Fair value of total assets adjusted during the period	$ 5.6

The carrying value of assets held for sale net of all fair value adjustments as of the balance sheet date.

Name:	tkr_AssetsHeldForSaleFairValue
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The charge against earnings resulting from the aggregrate write down of assets held for sale for the reporting period.

+ Details

Name:	tkr_AssetsHeldForSaleFairValueAdjustment
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The carrying value of total assets prior to fair value adjustment.

+ Details

Name:	tkr_AssetsPriorToAdjustmentToFairValue
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Balance Type:	debit
Period Type:	instant

- Definition

The aggregrate amount of write-downs for impairments recognized during the period for total assets (including those held for disposal by means other than sale).

+ Details

Name:	tkr_FairValueAdjustmentForAssets
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the total carrying value of total assets net of fair value adjustment as of the reporting date.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Certain changes made in the current period to the value and amount of inventory reported.

+ Details

Name:	tkr_ImpairmentOfInventoryNet
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying amount (lower of cost or market) as of the balance sheet date of certain non-strategic aftermarket product line inventories less write-downs.

+ Details

Name:	tkr_InventoryCurrentFairValueDisclosure
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of certain non-strategic aftermarket product lines.

+ Details

Name:	tkr_InventoryNetCarryingValue
Namespace Prefix:	tkr
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Long-lived assets adjusted to fair value.

+ Details

Name:	tkr_LongLivedAssetsAdjustedToFairValueAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying value of long lived fixed assets held and used at the balance sheet date.

+ Details

Name:	tkr_LongLivedFixedAssetsHeldAndUsedAtCarryingValue
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The carrying value of long lived assets held for sale net of all fair value adjustments as of the balance sheet date.

+ Details

Name:	tkr_LongLivedFixedAssetsHeldAndUsedAtFairValue
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The loss recognized for any initial write-down from carrying value to fair value less cost to sell for a classified as held for sale.

+ Details

Name:	tkr_LongLivedFixedAssetsHeldAndUsedAtFairValueAdjustment
Namespace Prefix:	tkr
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the sum of the carrying value of all the Assets Held-for-Sale at the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 47
-Subparagraph a

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 19
-Subparagraph h

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment losses recognized.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investments accounted for under the equity method of accounting as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 6
-Subparagraph b

+ Details

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