XML 45 R28.htm IDEA: XBRL DOCUMENT
v3.21.1

PENDING ACQUISITION OF AEROJET ROCKETDYNE (Details) - Aerojet Rocketdyne Holdings, Inc. - USD ($) $ / shares in Units, $ in Billions | Dec. 20, 2020 | Mar. 24, 2021
--- | --- | ---
Business Acquisition [Line Items] |  |
Reduced price (in dollars per share) | $ 51.00 |
Pre-closing special dividend paid to stockholders (in dollars per share) |  | $ 5.00
Post-dividend value | $ 4.6 |
Total transaction value | $ 4.4 |

X
- Definition Business Acquisition, Post Dividend Value + References No definition available. + Details
Name: | lmt_BusinessAcquisitionPostDividendValue
Namespace Prefix: | lmt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Business Acquisition, Pre-Closing Special Dividends Payment + References No definition available. + Details
Name: | lmt_BusinessAcquisitionPreClosingSpecialDividendsPayment
Namespace Prefix: | lmt_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Business Acquisition, Price Per Share, After Payment Of Pre-Closing Special Dividends + References No definition available. + Details
Name: | lmt_BusinessAcquisitionPricePerShareAfterPaymentOfPreClosingSpecialDividends
Namespace Prefix: | lmt_
Data Type: | num:perShareItemType
Balance Type: | na
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_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=lmt_AerojetRocketdyneHoldingsIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |