No definition available.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

Amount, after effects of reinsurance, of payments to settle insured claims and pay costs incurred in the claims settlement process attributable to asbestos and environmental claims.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65670824&loc=d3e14764-158437

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The number of claims settled and dismissed during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

+ Details

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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

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+ Details

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- Definition

Number of pending claims pertaining to a loss contingency.

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+ Details

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Commitments and Contingencies (Details) $ in Millions	3 Months Ended	12 Months Ended
Commitments and Contingencies (Details) $ in Millions	Mar. 31, 2018 USD ($) claim	Dec. 31, 2017 USD ($) claim	Dec. 31, 2016 USD ($)	Mar. 31, 2017 claim
Commitments and Contingencies Disclosure [Abstract]
Outstanding letters of credit and surety bonds \| $	$ 97
Loss Contingencies [Line Items]
Costs for (recoveries from) settlement and defense of asbestos claims, net of insurance recoveries and taxes \| $		$ 57	$ 48
Asbestos Claims [Member]
Loss Contingencies [Line Items]
Number of pending asbestos claims	31,600	31,660		33,600
Number of new asbestos claims	870
Number of asbestos claims closed or moved to inactive docket	930