Name:	l_AssetImpairmentChargesNetOfTax
Namespace Prefix:	l_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill, net of tax and noncontrolling interest.

No definition available.

Name:	l_AssetImpairmentChargesNetOfTaxAndNoncontrollingInterest
Namespace Prefix:	l_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use classified as other.

No definition available.

Name:	l_ImpairmentOfLongLivedAssetsHeldForUseOther
Namespace Prefix:	l_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The number of drilling rigs evaluated for impairment.

No definition available.

Name:	l_NumberOfDrillingRigsEvaluatedForImpairment
Namespace Prefix:	l_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The number of drilling rigs impaired.

No definition available.

Name:	l_NumberOfDrillingRigsImpaired
Namespace Prefix:	l_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

The number of hotels impaired.

No definition available.

Name:	l_NumberOfHotelPropertiesImpaired
Namespace Prefix:	l_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

Name:	us-gaap_AssetImpairmentCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- References

No definition available.