2.2.0.7 false Contracts in Process (Details) (USD $) 0605 - Disclosure - Contracts in Process (Details) true false In Millions false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 $ false 2 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 3 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 4 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 5 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 3 Components of contracts in process 1 lll_ComponentsOfContractsInProcessAbstract lll false na duration Components Of Contracts In Process. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:stringItemType string Components Of Contracts In Process. false 4 Unbilled contract receivables, gross 2 lll_UnbilledContractReceivablesGross lll false debit instant Gross unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain... false false false false false false false false false false false verboselabel false 1 true true false false 2622000000 2622 false false false 2 false false false false 0 0 false false false 3 true true false false 2622000000 2622 false false false 4 false false false false 0 0 false false false 5 true true false false 2373000000 2373 false false false xbrli:monetaryItemType monetary Gross unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be gross amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet. No authoritative reference available. false 5 Less: unliquidated progress payments 2 lll_UnliquidatedProgressPaymentsForUnbilledContractReceivables lll false credit instant unliquidated progress payments for Unbilled contract receivables. false false false false false false false false false false true negatedtotal false 1 false true false false -878000000 -878 false false false 2 false false false false 0 0 false false false 3 false true false false -878000000 -878 false false false 4 false false false false 0 0 false false false 5 false true false false -700000000 -700 false false false xbrli:monetaryItemType monetary unliquidated progress payments for Unbilled contract receivables. No authoritative reference available. true 6 Unbilled contract receivables, net 2 us-gaap_UnbilledContractsReceivable us-gaap true debit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 1744000000 1744 false false false 2 false false false false 0 0 false false false 3 false true false false 1744000000 1744 false false false 4 false false false false 0 0 false false false 5 false true false false 1673000000 1673 false false false xbrli:monetaryItemType monetary Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph c(3) -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 11 -Section A -Paragraph 4, 21 true 7 Inventoried contract costs, gross 2 lll_InventoriedContractCostsGross lll false debit instant Inventoried contract costs, gross. false false false false false false false false false false false verboselabel false 1 false true false false 894000000 894 false false false 2 false false false false 0 0 false false false 3 false true false false 894000000 894 false false false 4 false false false false 0 0 false false false 5 false true false false 837000000 837 false false false xbrli:monetaryItemType monetary Inventoried contract costs, gross. No authoritative reference available. false 8 Less: unliquidated progress payments 2 lll_UnliquidatedProgressPaymentsForInventoriedContractCosts lll false credit instant unliquidated progress payments for Inventoried contract costs. false false false false false false false false false false true negatedtotal false 1 false true false false -93000000 -93 false false false 2 false false false false 0 0 false false false 3 false true false false -93000000 -93 false false false 4 false false false false 0 0 false false false 5 false true false false -115000000 -115 false false false xbrli:monetaryItemType monetary unliquidated progress payments for Inventoried contract costs. No authoritative reference available. true 9 Inventoried contract costs, net 2 us-gaap_InventoryForLongTermContractsOrPrograms us-gaap true debit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 801000000 801 false false false 2 false false false false 0 0 false false false 3 false true false false 801000000 801 false false false 4 false false false false 0 0 false false false 5 false true false false 722000000 722 false false false xbrli:monetaryItemType monetary Carrying amount as of the balance sheet date of inventories associated with long-term contracts or programs. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Subparagraph a, d -Article 5 true 10 Total contracts in process 2 lll_ContractsInProcess lll false debit instant Net unbilled contract receivables and net inventoried contract costs. false false false false false false false false false false false totallabel false 1 false true false false 2545000000 2545 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 2545000000 2545 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 2395000000 2395 false false false xbrli:monetaryItemType monetary Net unbilled contract receivables and net inventoried contract costs. No authoritative reference available. true 11 General & Administrative, Independent Research & Development and Bid and Proposal Costs 1 lll_GeneralAndAdministrativeIndependentResearchAndDevelopmentAndBidAndProposalCostsIncludedInInventoriedContractCostsAbstract lll false na duration General & Administrative, Independent Research & Development and Bid and Proposal Costs Abstract. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:stringItemType string General & Administrative, Independent Research & Development and Bid and Proposal Costs Abstract. false 12 Amounts included in inventoried contract costs at beginning of the period 2 lll_GeneralAndAdministrativeIndependentResearchAndDevelopmentAndBidAndProposalCostsIncludedInInventoriedContractCostsAtBeginningOfPeriod lll false debit instant General & Administrative, Independent Research & Development and Bid & Proposal Costs Included in Inventoried Contract costs... false false false false false false false false true false false periodstartlabel false 1 false true false false 84000000 84 false false false 2 false true false false 79000000 79 false false false 3 false true false false 77000000 77 false false false 4 false true false false 74000000 74 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary General & Administrative, Independent Research & Development and Bid & Proposal Costs Included in Inventoried Contract costs at beginning of period. No authoritative reference available. false 13 Add: Contract costs incurred 2 lll_ContractCostsIncurred lll false debit duration Contract costs incurred. false false false false false false false false false false false verboselabel false 1 false true false false 342000000 342 [2] false false false 2 false true false false 333000000 333 [2] false false false 3 false true false false 655000000 655 [2] false false false 4 false true false false 641000000 641 [2] false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Contract costs incurred. No authoritative reference available. false 14 Less: Amounts charged to cost of sales 2 lll_AmountsChargedToCostOfSales lll false debit duration Amounts charged to cost of sales. false false false false false false false false false false false totallabel false 1 false true false false -333000000 -333 false false false 2 false true false false -333000000 -333 false false false 3 false true false false -639000000 -639 false false false 4 false true false false -636000000 -636 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Amounts charged to cost of sales. No authoritative reference available. true 15 Amounts included in inventoried contract costs at end of the period 2 lll_GeneralAndAdministrativeIndependentResearchAndDevelopmentAndBidAndProposalCostsIncludedInInventoriedContractCostsAtEndOfPeriodCostsIncludedInInventoriedContractCostsAtEndOfPeriod lll false debit instant General & Administrative, Independent Research & Development and Bid & Proposal Costs Included in Inventoried Contract costs... false false false false false false false false false true false periodendlabel false 1 false true false false 93000000 93 false false false 2 false true false false 79000000 79 false false false 3 false true false false 93000000 93 false false false 4 false true false false 79000000 79 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary General & Administrative, Independent Research & Development and Bid & Proposal Costs Included in Inventoried Contract costs at end of period. No authoritative reference available. false 16 Selling, general and administrative expenses and research and development expenses 1 lll_SellingGeneralAndAdministrativeExpensesAndResearchAndDevelopmentExpensesAbstract lll false na duration Selling, General and Administrative Expenses and Research and Development Expenses. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:stringItemType string Selling, General and Administrative Expenses and Research and Development Expenses. false 17 Selling, general and administrative expenses 2 lll_SellingGeneralAndAdministrativeExpenses lll false debit duration The aggregate total costs of selling the company's commerical businesses products and services, as well as all other general... false false false false false false false false false false false verboselabel false 1 false true false false 69000000 69 false false false 2 false true false false 60000000 60 false false false 3 false true false false 132000000 132 false false false 4 false true false false 126000000 126 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate total costs of selling the company's commerical businesses products and services, as well as all other general and administrative expenses not included in inventoried contract costs. Direct selling expenses (for example, credit and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. No authoritative reference available. false 18 Research and development expenses 2 lll_ResearchAndDevelopmentExpenses lll false debit duration The aggregate costs for the company's commercial businesses, not included included in inventoried contract costs, incurred... false false false false false false false false false false false totallabel false 1 false true false false 20000000 20 false false false 2 false true false false 18000000 18 false false false 3 false true false false 32000000 32 false false false 4 false true false false 33000000 33 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate costs for the company's commercial businesses, not included included in inventoried contract costs, incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. No authoritative reference available. true 19 Total 2 lll_SellingGeneralAndAdministrativeExpensesAndResearchAndDevelopmentExpenses lll false debit duration Selling, General and Administrative Expenses and Research and Development Expenses for the company's commercial businesses. false false false false false false false false false false false totallabel false 1 false true false false 89000000 89 false false false 2 false true false false 78000000 78 false false false 3 false true false false 164000000 164 false false false 4 false true false false 159000000 159 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Selling, General and Administrative Expenses and Research and Development Expenses for the company's commercial businesses. No authoritative reference available. true 20 Contracts in Process (Textuals) [Abstract] 1 lll_ContractsInProcessTextualsAbstract lll false na duration Contracts in Process. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:stringItemType string Contracts in Process. false 21 Independent research and development and bid and proposal costs included in inventoried contract costs 2 lll_IndependentResearchAndDevelopmentAndBidAndProposalCostsIncludedInInventoriedContractCosts lll false debit duration Independent research and development and bid and proposal costs included in inventoried contract costs. false false false false false false false false false false false verboselabel false 1 true true false false 92000000 92 false false false 2 true true false false 79000000 79 false false false 3 true true false false 173000000 173 false false false 4 true true false false 155000000 155 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Independent research and development and bid and proposal costs included in inventoried contract costs. No authoritative reference available. false 1 Unaudited 2 Incurred costs include IRAD and B and P costs of $92 million for the quarter ended June 25, 2010, $79 million for the quarter ended June 26, 2009, $173 million for the first half ended June 25, 2010 and $155 million for the first half ended June 26, 2009. 5 19 false Millions UnKnown UnKnown false true