Commitments and Contingencies - Roll forward of Asbestos Liability and Related Assets (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Changes in estimate during the period:
Noncurrent portion	$ 1,255.0	$ 1,529.1
Asbestos Related Matters [Member]
Asbestos Related Contingencies [Line Items]
Net Balance, Beginning	713.7	641.8
Changes in estimate during the period:
Continuing operations	56.8	100.3
Discontinued operations	(0.5)	6.4
Settlement Agreement	(11.4)
Net cash activity	(20.1)	(22.0)
Balance, Ending	739.5	713.7
Noncurrent portion
Asbestos Related Matters [Member] \| Asset [Member]
Asbestos Related Contingencies [Line Items]
Balance, Beginning	954.2	1,034.7
Changes in estimate during the period:
Continuing operations	(50.2)	23.2
Discontinued operations	11.0	(52.0)
Settlement Agreement	233.8
Net cash activity	(73.3)	(51.7)
Balance, Ending	607.9	954.2
Current portion	82.6	132.9
Noncurrent portion	525.3	821.3
Asbestos Related Matters [Member] \| Liability [Member]
Asbestos Related Contingencies [Line Items]
Balance, Beginning	1,667.9	1,676.5
Changes in estimate during the period:
Continuing operations	6.6	123.5
Discontinued operations	(11.5)	58.4
Settlement Agreement	(245.2)
Net cash activity	(93.4)	(73.7)
Balance, Ending	1,347.4	1,667.9
Current portion	92.4	138.8
Noncurrent portion	$ 1,255.0	$ 1,529.1

Asbestos Asset Gross Current and Non-current Beginning Balance

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Asbestos Asset Gross Current and Non-current Ending Balance

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- Definition

Asbestos Liability and Related Assets Net Current and Noncurrent

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Asbestos liability and related assets non current net.

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Asbestos Liability Gross Current and Non-current Beginning Balance

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Asbestos Liability Gross Current and Non-current Ending Balance

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- Definition

Changes in accruals during period continuing operations.

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Changes in accruals during period discontinued operations.

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- Definition

The payments made in the period which reduced asbestos loss contingency reserves, net of associated insurance reimbursements.

+ References

No definition available.

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Loss Contingency Settlement Agreement Amount

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The portion of the carrying amount as of the balance sheet date of the combined total of loss contingency liabilities which is expected to be resolved after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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The amount of receivables pertaining to a loss contingency added in the period.

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The portion of the carrying amount as of the balance sheet date of a recorded receivable related to a loss contingency accrual that is expected to be collected within one year or the normal operating cycle, if longer. For example, an insurance recovery receivable to the extent that the insurance recovery is probable and does not exceed the amount of the loss previously recognized in the financial statements.

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