XML 62 R50.htm IDEA: XBRL DOCUMENT
v3.10.0.1

OTHER - Equity Method Investee Impairment (Narrative) (Details) - Advanced Military Maintenance, Repair and Overhaul Center - USD ($) $ / shares in Units, $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 25, 2017 | Jun. 24, 2018
Schedule of Equity Method Investments [Line Items] |  |
Charge included in equity earnings | $ 64 |
Equity method investee impairment, after tax | $ 40 |
Equity method investee impairment (in dollars per share) | $ 0.14 |
Equity Method Investments |  | $ 560

X
- Definition Equity method investment other than temporary impairment earnings per share. + References No definition available. + Details
Name: | lmt_EquityMethodInvestmentOtherThanTemporaryImpairmentEarningsPerShare
Namespace Prefix: | lmt_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity method investment other than temporary impairment net of tax. + References No definition available. + Details
Name: | lmt_EquityMethodInvestmentOtherThanTemporaryImpairmentNetOfTax
Namespace Prefix: | lmt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=114001220&loc=d3e32787-111569 + Details
Name: | us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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 (OTTI) losses recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_EquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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. + Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=lmt_AdvancedMilitaryMaintenanceRepairandOverhaulCenterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |