2.2.0.7 true Unaudited Financial Information of L-3 Communications and Its Subsidiaries (Details) (USD $) 0623 - Disclosure - Unaudited Financial Information of L-3 Communications and Its Subsidiaries (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 $ 2 Current assets: 2 us-gaap_AssetsCurrentAbstract us-gaap true na duration No definition available. 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 No definition available. false 3 Cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 true true false false 650000000 650 [1] false false false 2 true true false false 1191000000 1191 false false false 3 true true false false 650000000 650 [1] false false false 4 true true false false 1191000000 1191 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 4 Billed receivables, net 2 us-gaap_AccountsReceivableNetCurrent us-gaap true debit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 1265000000 1265 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 1265000000 1265 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 1149000000 1149 false false false xbrli:monetaryItemType monetary Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a(1) -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 false 5 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 verboselabel false 1 false true false false 2567000000 2567 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 2567000000 2567 [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. false 6 Other current assets 2 lll_OtherCurrentAssets lll false debit instant Other current assets. false false false false false false false false false false false totallabel false 1 false true false false 613000000 613 false false false 2 false false false false 0 0 false false false 3 false true false false 613000000 613 false false false 4 false false false false 0 0 false false false 5 false true false false 628000000 628 false false false xbrli:monetaryItemType monetary Other current assets. No authoritative reference available. true 7 Total current assets 2 us-gaap_AssetsCurrent us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 5095000000 5095 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 5095000000 5095 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 5188000000 5188 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 9 -Article 5 false 8 Goodwill 2 us-gaap_Goodwill us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 8690000000 8690 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 8690000000 8690 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 8190000000 8190 false false false xbrli:monetaryItemType monetary Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142 and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 false 9 Other assets 2 lll_OtherAssetNoncurrent lll false debit instant Other Asset. false false false false false false false false false false false verboselabel false 1 false true false false 1597000000 1597 false false false 2 false false false false 0 0 false false false 3 false true false false 1597000000 1597 false false false 4 false false false false 0 0 false false false 5 false true false false 1472000000 1472 false false false xbrli:monetaryItemType monetary Other Asset. No authoritative reference available. false 10 Investment in and amounts due from consolidated subsidiaries 2 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures 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 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable form a party that is affiliated with the reporting entity by means of direct or indirect ownership. No authoritative reference available. true 11 Total assets 2 us-gaap_Assets 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 15382000000 15382 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 15382000000 15382 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 14850000000 14850 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Concepts (CON) -Number 6 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 true 12 Current portion of long-term debt 2 us-gaap_LongTermDebtCurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 693000000 693 [1],[2] false false false 2 false false false false 0 0 false false false 3 false true false false 693000000 693 [1],[2] false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 [2] false false false xbrli:monetaryItemType monetary Total of the portions of the carrying amounts as of the balance sheet date of long-term debt, which may include notes payable, bonds payable, debentures, mortgage loans, and commercial paper, which are scheduled to be repaid within one year or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 false 13 Current liabilities 2 us-gaap_LiabilitiesCurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 3311000000 3311 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 3311000000 3311 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 2519000000 2519 false false false xbrli:monetaryItemType monetary Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 21 -Article 5 false 14 Other current liabilities 2 lll_OtherCurrentLiabilities lll false credit instant Other Current Liabilities. false false false false false false false false false false false verboselabel false 1 false true false false 2618000000 2618 false false false 2 false false false false 0 0 false false false 3 false true false false 2618000000 2618 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Other Current Liabilities. No authoritative reference available. false 15 Other long-term liabilities 2 lll_OtherLongTermLiabilities lll false credit instant Other long-term liabilities. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 1559000000 1559 false false false xbrli:monetaryItemType monetary Other long-term liabilities. No authoritative reference available. false 16 Amounts due to consolidated subsidiaries 2 us-gaap_DueToRelatedPartiesNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 1632000000 1632 false false false 2 false false false false 0 0 false false false 3 false true false false 1632000000 1632 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 57 -Paragraph 2 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 23 -Article 5 false 17 Long-term debt 2 us-gaap_LongTermDebtNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 3439000000 3439 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 3439000000 3439 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 4112000000 4112 false false false xbrli:monetaryItemType monetary Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 true 18 Total liabilities 2 us-gaap_Liabilities us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 8382000000 8382 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 8382000000 8382 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 8190000000 8190 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. No authoritative reference available. true 19 L-3 shareholders' equity 2 us-gaap_StockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 6910000000 6910 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 6910000000 6910 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 6567000000 6567 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 false 20 Noncontrolling interests 2 us-gaap_MinorityInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 90000000 90 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 90000000 90 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 93000000 93 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 27 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 21 Total equity 2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 7000000000 7000 [1] false false false 2 false true false false 6454000000 6454 false false false 3 false true false false 7000000000 7000 [1] false false false 4 false true false false 6454000000 6454 false false false 5 false true false false 6660000000 6660 false false false xbrli:monetaryItemType monetary Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 22 Total liabilities and equity 2 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 15382000000 15382 [1] false false false 2 false false false false 0 0 false false false 3 false true false false 15382000000 15382 [1] false false false 4 false false false false 0 0 false false false 5 false true false false 14850000000 14850 false false false xbrli:monetaryItemType monetary Total of all Liabilities and Stockholders' Equity items. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 32 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 25 -Article 7 true 23 Condensed Combining Statements of Operations: 2 us-gaap_IncomeStatementAbstract us-gaap true na duration No definition available. 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 No definition available. false 24 Net sales 2 us-gaap_Revenues us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 3835000000 3835 false false false 2 false true false false 3842000000 3842 false false false 3 false true false false 11425000000 11425 false false false 4 false true false false 11407000000 11407 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 false 25 Cost of sales 2 us-gaap_CostOfGoodsAndServicesSold us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 3398000000 3398 false false false 2 false true false false 3424000000 3424 false false false 3 false true false false 10136000000 10136 false false false 4 false true false false 10196000000 10196 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 false 26 Operating income 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 437000000 437 false false false 2 false true false false 418000000 418 false false false 3 false true false false 1289000000 1289 false false false 4 false true false false 1211000000 1211 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. false 27 Interest and other income, net 2 us-gaap_NonoperatingGainsLosses us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 3000000 3 false false false 2 false true false false 3000000 3 false false false 3 false true false false 15000000 15 false false false 4 false true false false 12000000 12 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate amount of gains (losses) resulting from nonoperating activities (for example, interest and dividend revenue, property, plant and equipment impairment loss, and so forth.) Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 false 28 Interest expense 2 us-gaap_InterestExpense us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 64000000 64 false false false 2 false true false false 68000000 68 false false false 3 false true false false 200000000 200 false false false 4 false true false false 203000000 203 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 9 -Subsection II Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 false 29 Debt retirement charge 2 lll_DebtRetirementCharge lll false debit duration The aggregate costs related to the retirement of debt, including call premium and the write-off of deferred debt issuance... false false false false false false false false false false false totallabel false 1 false true false false 5000000 5 false false false 2 false false false false 0 0 false false false 3 false true false false 18000000 18 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate costs related to the retirement of debt, including call premium and the write-off of deferred debt issuance costs. No authoritative reference available. true 30 (Loss) income before income taxes 2 lll_IncomeLossFromContinuingOperationsBeforeIncomeTaxes lll false credit duration Income from continuing operations before income taxes. false false false false false false false false false false false verboselabel false 1 false true false false 371000000 371 false false false 2 false true false false 353000000 353 false false false 3 false true false false 1086000000 1086 false false false 4 false true false false 1020000000 1020 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Income from continuing operations before income taxes. No authoritative reference available. false 31 (Benefit) provision for income taxes 2 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 130000000 130 false false false 2 false true false false 100000000 100 false false false 3 false true false false 392000000 392 false false false 4 false true false false 339000000 339 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph a, b false 33 Net income 2 us-gaap_ProfitLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 241000000 241 false false false 2 false true false false 253000000 253 false false false 3 false true false false 694000000 694 false false false 4 false true false false 681000000 681 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 34 Net income attributable to noncontrolling interests 2 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 3000000 3 false false false 2 false true false false 3000000 3 false false false 3 false true false false 7000000 7 false false false 4 false true false false 7000000 7 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of net income (loss) attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 false 35 Net income attributable to L-3 2 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 238000000 238 false false false 2 false true false false 250000000 250 false false false 3 false true false false 687000000 687 false false false 4 false true false false 674000000 674 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. 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Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. 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Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 42 Financing activities: 2 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration No definition available. 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 No definition available. false 43 Proceeds from sale of senior notes 2 us-gaap_ProceedsFromNotesPayable us-gaap true debit duration No definition available. false false false false false false 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 true false false 797000000 797 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash inflow from a borrowing supported by a written promise to pay an obligation. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 50 Cash and cash equivalents, beginning of the period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false true false false periodstartlabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 1016000000 1016 false false false 4 false true false false 867000000 867 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. 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It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. 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No authoritative reference available. false 53 Current assets: 2 us-gaap_AssetsCurrentAbstract us-gaap true na duration No definition available. 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 No definition available. false 54 Cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true 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:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. 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No authoritative reference available. false 57 Other current assets 2 lll_OtherCurrentAssets lll false debit instant Other current assets. false false false false false false false false false false false totallabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Other current assets. No authoritative reference available. true 58 Total current assets 2 us-gaap_AssetsCurrent us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. 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No authoritative reference available. false 61 Investment in and amounts due from consolidated subsidiaries 2 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures 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 7602000000 7602 false false false 2 false false false false 0 0 false false false 3 false true false false 7602000000 7602 false false false 4 false false false false 0 0 false false false 5 false true false false 7240000000 7240 [3] false false false xbrli:monetaryItemType monetary Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable form a party that is affiliated with the reporting entity by means of direct or indirect ownership. No authoritative reference available. true 62 Total assets 2 us-gaap_Assets 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 7603000000 7603 false false false 2 false false false false 0 0 false false false 3 false true false false 7603000000 7603 false false false 4 false false false false 0 0 false false false 5 false true false false 7243000000 7243 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. 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No authoritative reference available. false 66 Other long-term liabilities 2 lll_OtherLongTermLiabilities lll false credit instant Other long-term liabilities. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Other long-term liabilities. No authoritative reference available. false 67 Amounts due to consolidated subsidiaries 2 us-gaap_DueToRelatedPartiesNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 57 -Paragraph 2 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 23 -Article 5 false 68 Long-term debt 2 us-gaap_LongTermDebtNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 676000000 676 false false false xbrli:monetaryItemType monetary Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 true 69 Total liabilities 2 us-gaap_Liabilities us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 693000000 693 false false false 2 false false false false 0 0 false false false 3 false true false false 693000000 693 false false false 4 false false false false 0 0 false false false 5 false true false false 676000000 676 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. No authoritative reference available. true 70 L-3 shareholders' equity 2 us-gaap_StockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 6910000000 6910 false false false 2 false false false false 0 0 false false false 3 false true false false 6910000000 6910 false false false 4 false false false false 0 0 false false false 5 false true false false 6567000000 6567 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 false 71 Noncontrolling interests 2 us-gaap_MinorityInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 27 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 72 Total equity 2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 6910000000 6910 false false false 2 false false false false 0 0 false false false 3 false true false false 6910000000 6910 false false false 4 false false false false 0 0 false false false 5 false true false false 6567000000 6567 false false false xbrli:monetaryItemType monetary Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 73 Total liabilities and equity 2 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 7603000000 7603 false false false 2 false false false false 0 0 false false false 3 false true false false 7603000000 7603 false false false 4 false false false false 0 0 false false false 5 false true false false 7243000000 7243 false false false xbrli:monetaryItemType monetary Total of all Liabilities and Stockholders' Equity items. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 32 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 25 -Article 7 true 74 Condensed Combining Statements of Operations: 2 us-gaap_IncomeStatementAbstract us-gaap true na duration No definition available. 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 No definition available. false 76 Cost of sales 2 us-gaap_CostOfGoodsAndServicesSold us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 20000000 20 [4] false false false 2 false true false false 18000000 18 false false false 3 false true false false 62000000 62 false false false 4 false true false false 53000000 53 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 false 77 Operating income 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel 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 -62000000 -62 false false false 4 false true false false -53000000 -53 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. false 79 Interest expense 2 us-gaap_InterestExpense us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 12000000 12 false false false 2 false true false false 11000000 11 false false false 3 false true false false 34000000 34 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 cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 9 -Subsection II Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 false 81 (Loss) income before income taxes 2 lll_IncomeLossFromContinuingOperationsBeforeIncomeTaxes lll false credit duration Income from continuing operations before income taxes. false false false false false false false false false false false verboselabel false 1 false true false false -32000000 -32 false false false 2 false true false false -29000000 -29 false false false 3 false true false false -96000000 -96 false false false 4 false true false false -86000000 -86 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Income from continuing operations before income taxes. No authoritative reference available. false 82 (Benefit) provision for income taxes 2 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -11000000 -11 false false false 2 false true false false -9000000 -9 false false false 3 false true false false -35000000 -35 false false false 4 false true false false -29000000 -29 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph a, b false 83 Equity in net income of consolidated subsidiaries 2 lll_EquityInNetIncomeOfConsolidatedSubsidiaries lll false credit duration Equity in net income of consolidated subsidiaries. false false false false false false false false false false false totallabel false 1 false true false false 259000000 259 false false false 2 false true false false 270000000 270 false false false 3 false true false false 748000000 748 false false false 4 false true false false 731000000 731 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Equity in net income of consolidated subsidiaries. No authoritative reference available. true 84 Net income 2 us-gaap_ProfitLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 238000000 238 false false false 2 false true false false 250000000 250 false false false 3 false true false false 687000000 687 false false false 4 false true false false 674000000 674 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 86 Net income attributable to L-3 2 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 238000000 238 false false false 2 false true false false 250000000 250 false false false 3 false true false false 687000000 687 false false false 4 false true false false 674000000 674 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. 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Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 88 Net cash from operating activities 2 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 608000000 608 false false false 4 false true false false 520000000 520 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. 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No authoritative reference available. false 92 Net cash used in investing activities 2 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 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 true false false -55000000 -55 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 93 Financing activities: 2 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration No definition available. 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 No definition available. false 96 Common stock repurchased 2 us-gaap_PaymentsForRepurchaseOfCommonStock us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -469000000 -469 false false false 4 false true false false -396000000 -396 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash outflow to reacquire common stock during the period. 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No authoritative reference available. false 98 Net cash from (used in) financing activities 2 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -515000000 -515 false false false 4 false true false false -465000000 -465 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 101 Cash and cash equivalents, beginning of the period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false true false false periodstartlabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true 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:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. 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It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 103 L-3 Communications [Member] 0 na true na na No definition available. false true false false false false false false false false false http://l-3com.com/role/financialinformationofparentcompanyanditssubsidiariesdetails 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 false 12 USD true false false false lll_WhollyOwnedSubsidiariesMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi lll_WhollyOwnedSubsidiariesMember dei_LegalEntityAxis explicitMember 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 $ false 13 USD true false false false lll_WhollyOwnedSubsidiariesMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi lll_WhollyOwnedSubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 14 USD true false false false lll_WhollyOwnedSubsidiariesMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi lll_WhollyOwnedSubsidiariesMember dei_LegalEntityAxis explicitMember 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 $ false 15 USD true false false false lll_WhollyOwnedSubsidiariesMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi lll_WhollyOwnedSubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 16 USD true false false false lll_WhollyOwnedSubsidiariesMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi lll_WhollyOwnedSubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ na No definition available. No authoritative reference available. false 104 Current assets: 2 us-gaap_AssetsCurrentAbstract us-gaap true na duration No definition available. 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 No definition available. false 105 Cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 247000000 247 false false false 2 false true false false 887000000 887 false false false 3 false true false false 247000000 247 false false false 4 false true false false 887000000 887 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 106 Billed receivables, net 2 us-gaap_AccountsReceivableNetCurrent us-gaap true debit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 295000000 295 false false false 2 false false false false 0 0 false false false 3 false true false false 295000000 295 false false false 4 false false false false 0 0 false false false 5 false true false false 321000000 321 false false false xbrli:monetaryItemType monetary Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a(1) -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 false 107 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 verboselabel false 1 false true false false 788000000 788 false false false 2 false false false false 0 0 false false false 3 false true false false 788000000 788 false false false 4 false false false false 0 0 false false false 5 false true false false 616000000 616 false false false xbrli:monetaryItemType monetary Net unbilled contract receivables and net inventoried contract costs. No authoritative reference available. false 108 Other current assets 2 lll_OtherCurrentAssets lll false debit instant Other current assets. false false false false false false false false false false false totallabel false 1 false true false false 238000000 238 false false false 2 false false false false 0 0 false false false 3 false true false false 238000000 238 false false false 4 false false false false 0 0 false false false 5 false true false false 334000000 334 false false false xbrli:monetaryItemType monetary Other current assets. No authoritative reference available. true 109 Total current assets 2 us-gaap_AssetsCurrent us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 1568000000 1568 false false false 2 false false false false 0 0 false false false 3 false true false false 1568000000 1568 false false false 4 false false false false 0 0 false false false 5 false true false false 2068000000 2068 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 9 -Article 5 false 110 Goodwill 2 us-gaap_Goodwill us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 1219000000 1219 false false false 2 false false false false 0 0 false false false 3 false true false false 1219000000 1219 false false false 4 false false false false 0 0 false false false 5 false true false false 1190000000 1190 false false false xbrli:monetaryItemType monetary Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142 and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 false 111 Other assets 2 lll_OtherAssetNoncurrent lll false debit instant Other Asset. false false false false false false false false false false false verboselabel false 1 false true false false 474000000 474 false false false 2 false false false false 0 0 false false false 3 false true false false 474000000 474 false false false 4 false false false false 0 0 false false false 5 false true false false 485000000 485 false false false xbrli:monetaryItemType monetary Other Asset. No authoritative reference available. false 112 Investment in and amounts due from consolidated subsidiaries 2 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures 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 9840000000 9840 false false false 2 false false false false 0 0 false false false 3 false true false false 9840000000 9840 false false false 4 false false false false 0 0 false false false 5 false true false false 8916000000 8916 false false false xbrli:monetaryItemType monetary Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable form a party that is affiliated with the reporting entity by means of direct or indirect ownership. No authoritative reference available. true 113 Total assets 2 us-gaap_Assets 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 13101000000 13101 false false false 2 false false false false 0 0 false false false 3 false true false false 13101000000 13101 false false false 4 false false false false 0 0 false false false 5 false true false false 12659000000 12659 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Concepts (CON) -Number 6 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 true 114 Current portion of long-term debt 2 us-gaap_LongTermDebtCurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 693000000 693 false false false 2 false false false false 0 0 false false false 3 false true false false 693000000 693 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total of the portions of the carrying amounts as of the balance sheet date of long-term debt, which may include notes payable, bonds payable, debentures, mortgage loans, and commercial paper, which are scheduled to be repaid within one year or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 false 115 Current liabilities 2 us-gaap_LiabilitiesCurrent us-gaap true credit instant No definition available. false false false false false false 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 true false false 737000000 737 false false false xbrli:monetaryItemType monetary Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 21 -Article 5 false 116 Other current liabilities 2 lll_OtherCurrentLiabilities lll false credit instant Other Current Liabilities. false false false false false false false false false false false verboselabel false 1 false true false false 763000000 763 false false false 2 false false false false 0 0 false false false 3 false true false false 763000000 763 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Other Current Liabilities. No authoritative reference available. false 117 Other long-term liabilities 2 lll_OtherLongTermLiabilities lll false credit instant Other long-term liabilities. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 1243000000 1243 false false false xbrli:monetaryItemType monetary Other long-term liabilities. No authoritative reference available. false 118 Amounts due to consolidated subsidiaries 2 us-gaap_DueToRelatedPartiesNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 1296000000 1296 false false false 2 false false false false 0 0 false false false 3 false true false false 1296000000 1296 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 57 -Paragraph 2 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 23 -Article 5 false 119 Long-term debt 2 us-gaap_LongTermDebtNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 3439000000 3439 false false false 2 false false false false 0 0 false false false 3 false true false false 3439000000 3439 false false false 4 false false false false 0 0 false false false 5 false true false false 4112000000 4112 false false false xbrli:monetaryItemType monetary Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 true 120 Total liabilities 2 us-gaap_Liabilities us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 6191000000 6191 false false false 2 false false false false 0 0 false false false 3 false true false false 6191000000 6191 false false false 4 false false false false 0 0 false false false 5 false true false false 6092000000 6092 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. No authoritative reference available. true 121 L-3 shareholders' equity 2 us-gaap_StockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 6910000000 6910 false false false 2 false false false false 0 0 false false false 3 false true false false 6910000000 6910 false false false 4 false false false false 0 0 false false false 5 false true false false 6567000000 6567 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 false 122 Noncontrolling interests 2 us-gaap_MinorityInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 27 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 123 Total equity 2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 6910000000 6910 false false false 2 false false false false 0 0 false false false 3 false true false false 6910000000 6910 false false false 4 false false false false 0 0 false false false 5 false true false false 6567000000 6567 false false false xbrli:monetaryItemType monetary Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 124 Total liabilities and equity 2 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 13101000000 13101 false false false 2 false false false false 0 0 false false false 3 false true false false 13101000000 13101 false false false 4 false false false false 0 0 false false false 5 false true false false 12659000000 12659 false false false xbrli:monetaryItemType monetary Total of all Liabilities and Stockholders' Equity items. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 32 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 25 -Article 7 true 125 Condensed Combining Statements of Operations: 2 us-gaap_IncomeStatementAbstract us-gaap true na duration No definition available. 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 No definition available. false 126 Net sales 2 us-gaap_Revenues us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 806000000 806 false false false 2 false true false false 789000000 789 false false false 3 false true false false 2445000000 2445 false false false 4 false true false false 2476000000 2476 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 false 127 Cost of sales 2 us-gaap_CostOfGoodsAndServicesSold us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 700000000 700 false false false 2 false true false false 678000000 678 false false false 3 false true false false 2089000000 2089 false false false 4 false true false false 2163000000 2163 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 false 128 Operating income 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 106000000 106 false false false 2 false true false false 111000000 111 false false false 3 false true false false 356000000 356 false false false 4 false true false false 313000000 313 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. false 129 Interest and other income, net 2 us-gaap_NonoperatingGainsLosses us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 31000000 31 false false false 2 false true false false 31000000 31 false false false 3 false true false false 95000000 95 false false false 4 false true false false 94000000 94 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate amount of gains (losses) resulting from nonoperating activities (for example, interest and dividend revenue, property, plant and equipment impairment loss, and so forth.) Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 false 130 Interest expense 2 us-gaap_InterestExpense us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 64000000 64 false false false 2 false true false false 68000000 68 false false false 3 false true false false 200000000 200 false false false 4 false true false false 202000000 202 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 9 -Subsection II Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 false 131 Debt retirement charge 2 lll_DebtRetirementCharge lll false debit duration The aggregate costs related to the retirement of debt, including call premium and the write-off of deferred debt issuance... false false false false false false false false false false false totallabel false 1 false true false false 5000000 5 false false false 2 false false false false 0 0 false false false 3 false true false false 18000000 18 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate costs related to the retirement of debt, including call premium and the write-off of deferred debt issuance costs. No authoritative reference available. true 132 (Loss) income before income taxes 2 lll_IncomeLossFromContinuingOperationsBeforeIncomeTaxes lll false credit duration Income from continuing operations before income taxes. false false false false false false false false false false false verboselabel false 1 false true false false 68000000 68 false false false 2 false true false false 74000000 74 false false false 3 false true false false 233000000 233 false false false 4 false true false false 205000000 205 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Income from continuing operations before income taxes. No authoritative reference available. false 133 (Benefit) provision for income taxes 2 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 24000000 24 false false false 2 false true false false 27000000 27 false false false 3 false true false false 84000000 84 false false false 4 false true false false 71000000 71 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph a, b false 134 Equity in net income of consolidated subsidiaries 2 lll_EquityInNetIncomeOfConsolidatedSubsidiaries lll false credit duration Equity in net income of consolidated subsidiaries. false false false false false false false false false false false totallabel false 1 false true false false 194000000 194 false false false 2 false true false false 203000000 203 false false false 3 false true false false 538000000 538 false false false 4 false true false false 540000000 540 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Equity in net income of consolidated subsidiaries. No authoritative reference available. true 135 Net income 2 us-gaap_ProfitLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 238000000 238 false false false 2 false true false false 250000000 250 false false false 3 false true false false 687000000 687 false false false 4 false true false false 674000000 674 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 137 Net income attributable to L-3 2 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 238000000 238 false false false 2 false true false false 250000000 250 false false false 3 false true false false 687000000 687 false false false 4 false true false false 674000000 674 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 true 138 Operating activities: 2 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. 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 The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 139 Net cash from operating activities 2 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 119000000 119 false false false 4 false true false false 30000000 30 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. 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It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. 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It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 361 Billed receivables, net 2 us-gaap_AccountsReceivableNetCurrent us-gaap true debit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 743000000 743 false false false 2 false false false false 0 0 false false false 3 false true false false 743000000 743 false false false 4 false false false false 0 0 false false false 5 false true false false 629000000 629 false false false xbrli:monetaryItemType monetary Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a(1) -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 false 362 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 verboselabel false 1 false true false false 1539000000 1539 false false false 2 false false false false 0 0 false false false 3 false true false false 1539000000 1539 false false false 4 false false false false 0 0 false false false 5 false true false false 1538000000 1538 false false false xbrli:monetaryItemType monetary Net unbilled contract receivables and net inventoried contract costs. No authoritative reference available. false 363 Other current assets 2 lll_OtherCurrentAssets lll false debit instant Other current assets. false false false false false false false false false false false totallabel false 1 false true false false 166000000 166 false false false 2 false false false false 0 0 false false false 3 false true false false 166000000 166 false false false 4 false false false false 0 0 false false false 5 false true false false 164000000 164 false false false xbrli:monetaryItemType monetary Other current assets. No authoritative reference available. true 364 Total current assets 2 us-gaap_AssetsCurrent us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 2452000000 2452 false false false 2 false false false false 0 0 false false false 3 false true false false 2452000000 2452 false false false 4 false false false false 0 0 false false false 5 false true false false 2335000000 2335 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 9 -Article 5 false 365 Goodwill 2 us-gaap_Goodwill us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 5833000000 5833 false false false 2 false false false false 0 0 false false false 3 false true false false 5833000000 5833 false false false 4 false false false false 0 0 false false false 5 false true false false 5828000000 5828 false false false xbrli:monetaryItemType monetary Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142 and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 false 366 Other assets 2 lll_OtherAssetNoncurrent lll false debit instant Other Asset. false false false false false false false false false false false verboselabel false 1 false true false false 767000000 767 false false false 2 false false false false 0 0 false false false 3 false true false false 767000000 767 false false false 4 false false false false 0 0 false false false 5 false true false false 810000000 810 false false false xbrli:monetaryItemType monetary Other Asset. No authoritative reference available. false 367 Investment in and amounts due from consolidated subsidiaries 2 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures 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 2301000000 2301 false false false 2 false false false false 0 0 false false false 3 false true false false 2301000000 2301 false false false 4 false false false false 0 0 false false false 5 false true false false 1949000000 1949 false false false xbrli:monetaryItemType monetary Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable form a party that is affiliated with the reporting entity by means of direct or indirect ownership. No authoritative reference available. true 368 Total assets 2 us-gaap_Assets 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 11353000000 11353 false false false 2 false false false false 0 0 false false false 3 false true false false 11353000000 11353 false false false 4 false false false false 0 0 false false false 5 false true false false 10922000000 10922 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Concepts (CON) -Number 6 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 true 369 Current portion of long-term debt 2 us-gaap_LongTermDebtCurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true 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:monetaryItemType monetary Total of the portions of the carrying amounts as of the balance sheet date of long-term debt, which may include notes payable, bonds payable, debentures, mortgage loans, and commercial paper, which are scheduled to be repaid within one year or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 false 370 Current liabilities 2 us-gaap_LiabilitiesCurrent us-gaap true credit instant No definition available. false false false false false false 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 true false false 1343000000 1343 false false false xbrli:monetaryItemType monetary Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. 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No authoritative reference available. false 372 Other long-term liabilities 2 lll_OtherLongTermLiabilities lll false credit instant Other long-term liabilities. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 226000000 226 false false false xbrli:monetaryItemType monetary Other long-term liabilities. No authoritative reference available. false 373 Amounts due to consolidated subsidiaries 2 us-gaap_DueToRelatedPartiesNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 242000000 242 false false false 2 false false false false 0 0 false false false 3 false true false false 242000000 242 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 57 -Paragraph 2 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 23 -Article 5 false 374 Long-term debt 2 us-gaap_LongTermDebtNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 true 375 Total liabilities 2 us-gaap_Liabilities us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 1572000000 1572 false false false 2 false false false false 0 0 false false false 3 false true false false 1572000000 1572 false false false 4 false false false false 0 0 false false false 5 false true false false 1569000000 1569 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. No authoritative reference available. true 376 L-3 shareholders' equity 2 us-gaap_StockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 9781000000 9781 false false false 2 false false false false 0 0 false false false 3 false true false false 9781000000 9781 false false false 4 false false false false 0 0 false false false 5 false true false false 9353000000 9353 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 false 377 Noncontrolling interests 2 us-gaap_MinorityInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 27 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 378 Total equity 2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 9781000000 9781 false false false 2 false false false false 0 0 false false false 3 false true false false 9781000000 9781 false false false 4 false false false false 0 0 false false false 5 false true false false 9353000000 9353 false false false xbrli:monetaryItemType monetary Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 379 Total liabilities and equity 2 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 11353000000 11353 false false false 2 false false false false 0 0 false false false 3 false true false false 11353000000 11353 false false false 4 false false false false 0 0 false false false 5 false true false false 10922000000 10922 false false false xbrli:monetaryItemType monetary Total of all Liabilities and Stockholders' Equity items. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 32 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 25 -Article 7 true 380 Condensed Combining Statements of Operations: 2 us-gaap_IncomeStatementAbstract us-gaap true na duration No definition available. 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 No definition available. false 381 Net sales 2 us-gaap_Revenues us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 2530000000 2530 false false false 2 false true false false 2627000000 2627 false false false 3 false true false false 7542000000 7542 false false false 4 false true false false 7659000000 7659 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 false 382 Cost of sales 2 us-gaap_CostOfGoodsAndServicesSold us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 2283000000 2283 false false false 2 false true false false 2377000000 2377 false false false 3 false true false false 6830000000 6830 false false false 4 false true false false 6913000000 6913 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 false 383 Operating income 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 247000000 247 false false false 2 false true false false 250000000 250 false false false 3 false true false false 712000000 712 false false false 4 false true false false 746000000 746 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. false 384 Interest and other income, net 2 us-gaap_NonoperatingGainsLosses us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -1000000 -1 false false false 2 false false false false 0 0 false false false 3 false true false false 4000000 4 false false false 4 false true false false 1000000 1 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate amount of gains (losses) resulting from nonoperating activities (for example, interest and dividend revenue, property, plant and equipment impairment loss, and so forth.) 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No authoritative reference available. false 388 (Benefit) provision for income taxes 2 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 77000000 77 false false false 2 false true false false 53000000 53 false false false 3 false true false false 229000000 229 false false false 4 false true false false 214000000 214 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 392 Net income attributable to L-3 2 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 142000000 142 false false false 2 false true false false 170000000 170 false false false 3 false true false false 405000000 405 false false false 4 false true false false 451000000 451 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 true 393 Operating activities: 2 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. 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 The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 394 Net cash from operating activities 2 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 692000000 692 false false false 4 false true false false 753000000 753 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 395 Investing activities: 2 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration No definition available. 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 No definition available. false 397 Other investing activities 2 lll_OtherInvestingActivities lll false credit duration Other investing activities. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -63000000 -63 false false false 4 false true false false -85000000 -85 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Other investing activities. No authoritative reference available. false 398 Net cash used in investing activities 2 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -63000000 -63 false false false 4 false true false false -85000000 -85 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 399 Financing activities: 2 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration No definition available. 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 No definition available. false 403 Other financing activities 2 lll_OtherFinancingActivities lll false credit duration Other financing activities. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -629000000 -629 false false false 4 false true false false -658000000 -658 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Other financing activities. No authoritative reference available. false 404 Net cash from (used in) financing activities 2 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -629000000 -629 false false false 4 false true false false -658000000 -658 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 406 Net (decrease) increase in cash 2 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false true false false 10000000 10 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net change between the beginning and ending balance of cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 407 Cash and cash equivalents, beginning of the period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false true false false periodstartlabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 4000000 4 false false false 4 false true false false 2000000 2 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 408 Cash and cash equivalents, end of the period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false false true false periodendlabel false 1 false true false false 4000000 4 false false false 2 false true false false 12000000 12 false false false 3 false true false false 4000000 4 false false false 4 false true false false 12000000 12 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 409 Non-Guarantor Subsidiaries [Member] 0 na true na na No definition available. false true false false false false false false false false false http://l-3com.com/role/financialinformationofparentcompanyanditssubsidiariesdetails 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 false 38 USD true false false false us-gaap_NonGuarantorSubsidiariesMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_NonGuarantorSubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 39 USD true false false false us-gaap_NonGuarantorSubsidiariesMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_NonGuarantorSubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 40 USD true false false false us-gaap_NonGuarantorSubsidiariesMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_NonGuarantorSubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 41 USD true false false false us-gaap_NonGuarantorSubsidiariesMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_NonGuarantorSubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 42 USD true false false false us-gaap_NonGuarantorSubsidiariesMember dei_LegalEntityAxis xbrldi http://xbrl.org/2006/xbrldi us-gaap_NonGuarantorSubsidiariesMember dei_LegalEntityAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ na No definition available. No authoritative reference available. false 410 Current assets: 2 us-gaap_AssetsCurrentAbstract us-gaap true na duration No definition available. 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 No definition available. false 411 Cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 468000000 468 false false false 2 false true false false 337000000 337 false false false 3 false true false false 468000000 468 false false false 4 false true false false 337000000 337 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 412 Billed receivables, net 2 us-gaap_AccountsReceivableNetCurrent us-gaap true debit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 227000000 227 false false false 2 false false false false 0 0 false false false 3 false true false false 227000000 227 false false false 4 false false false false 0 0 false false false 5 false true false false 199000000 199 false false false xbrli:monetaryItemType monetary Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a(1) -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 false 413 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 verboselabel false 1 false true false false 240000000 240 false false false 2 false false false false 0 0 false false false 3 false true false false 240000000 240 false false false 4 false false false false 0 0 false false false 5 false true false false 241000000 241 false false false xbrli:monetaryItemType monetary Net unbilled contract receivables and net inventoried contract costs. No authoritative reference available. false 414 Other current assets 2 lll_OtherCurrentAssets lll false debit instant Other current assets. false false false false false false false false false false false totallabel false 1 false true false false 209000000 209 false false false 2 false false false false 0 0 false false false 3 false true false false 209000000 209 false false false 4 false false false false 0 0 false false false 5 false true false false 130000000 130 false false false xbrli:monetaryItemType monetary Other current assets. No authoritative reference available. true 415 Total current assets 2 us-gaap_AssetsCurrent us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 1144000000 1144 false false false 2 false false false false 0 0 false false false 3 false true false false 1144000000 1144 false false false 4 false false false false 0 0 false false false 5 false true false false 934000000 934 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 9 -Article 5 false 416 Goodwill 2 us-gaap_Goodwill us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 1638000000 1638 false false false 2 false false false false 0 0 false false false 3 false true false false 1638000000 1638 false false false 4 false false false false 0 0 false false false 5 false true false false 1172000000 1172 false false false xbrli:monetaryItemType monetary Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142 and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 false 417 Other assets 2 lll_OtherAssetNoncurrent lll false debit instant Other Asset. false false false false false false false false false false false verboselabel false 1 false true false false 356000000 356 false false false 2 false false false false 0 0 false false false 3 false true false false 356000000 356 false false false 4 false false false false 0 0 false false false 5 false true false false 177000000 177 false false false xbrli:monetaryItemType monetary Other Asset. No authoritative reference available. false 418 Investment in and amounts due from consolidated subsidiaries 2 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures 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 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable form a party that is affiliated with the reporting entity by means of direct or indirect ownership. No authoritative reference available. true 419 Total assets 2 us-gaap_Assets 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 3138000000 3138 false false false 2 false false false false 0 0 false false false 3 false true false false 3138000000 3138 false false false 4 false false false false 0 0 false false false 5 false true false false 2283000000 2283 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Concepts (CON) -Number 6 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 true 420 Current portion of long-term debt 2 us-gaap_LongTermDebtCurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true 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:monetaryItemType monetary Total of the portions of the carrying amounts as of the balance sheet date of long-term debt, which may include notes payable, bonds payable, debentures, mortgage loans, and commercial paper, which are scheduled to be repaid within one year or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 false 421 Current liabilities 2 us-gaap_LiabilitiesCurrent us-gaap true credit instant No definition available. false false false false false false 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 true false false 588000000 588 false false false xbrli:monetaryItemType monetary Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 21 -Article 5 false 422 Other current liabilities 2 lll_OtherCurrentLiabilities lll false credit instant Other Current Liabilities. false false false false false false false false false false false verboselabel false 1 false true false false 594000000 594 false false false 2 false false false false 0 0 false false false 3 false true false false 594000000 594 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Other Current Liabilities. No authoritative reference available. false 423 Other long-term liabilities 2 lll_OtherLongTermLiabilities lll false credit instant Other long-term liabilities. false false false false false false false false false false false verboselabel false 1 false true false false 425000000 425 false false false 2 false false false false 0 0 false false false 3 false true false false 425000000 425 false false false 4 false false false false 0 0 false false false 5 false true false false 90000000 90 false false false xbrli:monetaryItemType monetary Other long-term liabilities. No authoritative reference available. false 424 Amounts due to consolidated subsidiaries 2 us-gaap_DueToRelatedPartiesNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 94000000 94 false false false 2 false false false false 0 0 false false false 3 false true false false 94000000 94 false false false 4 false false false false 0 0 false false false 5 false true false false 260000000 260 false false false xbrli:monetaryItemType monetary Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 57 -Paragraph 2 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 23 -Article 5 false 425 Long-term debt 2 us-gaap_LongTermDebtNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 true 426 Total liabilities 2 us-gaap_Liabilities us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 1113000000 1113 false false false 2 false false false false 0 0 false false false 3 false true false false 1113000000 1113 false false false 4 false false false false 0 0 false false false 5 false true false false 938000000 938 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. No authoritative reference available. true 427 L-3 shareholders' equity 2 us-gaap_StockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false 2025000000 2025 false false false 2 false false false false 0 0 false false false 3 false true false false 2025000000 2025 false false false 4 false false false false 0 0 false false false 5 false true false false 1345000000 1345 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 false 428 Noncontrolling interests 2 us-gaap_MinorityInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 27 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 429 Total equity 2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 2025000000 2025 false false false 2 false false false false 0 0 false false false 3 false true false false 2025000000 2025 false false false 4 false false false false 0 0 false false false 5 false true false false 1345000000 1345 false false false xbrli:monetaryItemType monetary Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 32 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 25 -Article 7 true 431 Condensed Combining Statements of Operations: 2 us-gaap_IncomeStatementAbstract us-gaap true na duration No definition available. 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 No definition available. false 432 Net sales 2 us-gaap_Revenues us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 567000000 567 false false false 2 false true false false 459000000 459 false false false 3 false true false false 1646000000 1646 false false false 4 false true false false 1369000000 1369 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 false 433 Cost of sales 2 us-gaap_CostOfGoodsAndServicesSold us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 483000000 483 false false false 2 false true false false 402000000 402 false false false 3 false true false false 1425000000 1425 false false false 4 false true false false 1217000000 1217 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 false 434 Operating income 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 84000000 84 false false false 2 false true false false 57000000 57 false false false 3 false true false false 221000000 221 false false false 4 false true false false 152000000 152 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. false 435 Interest and other income, net 2 us-gaap_NonoperatingGainsLosses us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 1000000 1 false false false 2 false false false false 0 0 false false false 3 false true false false 2000000 2 false false false 4 false true false false 2000000 2 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate amount of gains (losses) resulting from nonoperating activities (for example, interest and dividend revenue, property, plant and equipment impairment loss, and so forth.) 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No authoritative reference available. false 439 (Benefit) provision for income taxes 2 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 29000000 29 false false false 2 false true false false 20000000 20 false false false 3 false true false false 79000000 79 false false false 4 false true false false 54000000 54 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 443 Net income attributable to L-3 2 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 55000000 55 false false false 2 false true false false 36000000 36 false false false 3 false true false false 140000000 140 false false false 4 false true false false 96000000 96 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. 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Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 445 Net cash from operating activities 2 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 196000000 196 false false false 4 false true false false 157000000 157 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. 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No authoritative reference available. false 449 Net cash used in investing activities 2 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -4000000 -4 false false false 4 false true false false -9000000 -9 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 450 Financing activities: 2 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration No definition available. 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 No definition available. false 454 Other financing activities 2 lll_OtherFinancingActivities lll false credit duration Other financing activities. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -79000000 -79 false false false 4 false true false false -60000000 -60 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Other financing activities. No authoritative reference available. false 455 Net cash from (used in) financing activities 2 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -79000000 -79 false false false 4 false true false false -60000000 -60 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 456 Effect of foreign currency exchange rate changes on cash 2 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -9000000 -9 false false false 4 false true false false 21000000 21 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The effect of exchange rate changes on cash balances held in foreign currencies. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 458 Cash and cash equivalents, beginning of the period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false true false false periodstartlabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 364000000 364 false false false 4 false true false false 228000000 228 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. 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It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. 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No authoritative reference available. false 461 Current assets: 2 us-gaap_AssetsCurrentAbstract us-gaap true na duration No definition available. 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 No definition available. false 462 Cash and cash equivalents 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. 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 -45000000 -45 false false false 3 false true false false -69000000 -69 false false false 4 false true false false -45000000 -45 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. 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No authoritative reference available. false 465 Other current assets 2 lll_OtherCurrentAssets lll false debit instant Other current assets. false false false false false false false false false false false totallabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Other current assets. No authoritative reference available. true 466 Total current assets 2 us-gaap_AssetsCurrent us-gaap true debit instant No definition available. 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 false false false 0 0 false false false 3 false true false false -69000000 -69 false false false 4 false false false false 0 0 false false false 5 false true false false -149000000 -149 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 9 -Article 5 false 467 Goodwill 2 us-gaap_Goodwill us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142 and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 false 468 Other assets 2 lll_OtherAssetNoncurrent lll false debit instant Other Asset. false false false false false false false false false false false verboselabel false 1 false true false false -1000000 -1 false false false 2 false false false false 0 0 false false false 3 false true false false -1000000 -1 false false false 4 false false false false 0 0 false false false 5 false true false false -3000000 -3 false false false xbrli:monetaryItemType monetary Other Asset. No authoritative reference available. false 469 Investment in and amounts due from consolidated subsidiaries 2 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures 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 -19743000000 -19743 false false false 2 false false false false 0 0 false false false 3 false true false false -19743000000 -19743 false false false 4 false false false false 0 0 false false false 5 false true false false -18105000000 -18105 false false false xbrli:monetaryItemType monetary Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable form a party that is affiliated with the reporting entity by means of direct or indirect ownership. No authoritative reference available. true 470 Total assets 2 us-gaap_Assets 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 -19813000000 -19813 false false false 2 false false false false 0 0 false false false 3 false true false false -19813000000 -19813 false false false 4 false false false false 0 0 false false false 5 false true false false -18257000000 -18257 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Concepts (CON) -Number 6 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 true 471 Current portion of long-term debt 2 us-gaap_LongTermDebtCurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -693000000 -693 false false false 2 false false false false 0 0 false false false 3 false true false false -693000000 -693 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Total of the portions of the carrying amounts as of the balance sheet date of long-term debt, which may include notes payable, bonds payable, debentures, mortgage loans, and commercial paper, which are scheduled to be repaid within one year or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Article 5 false 472 Current liabilities 2 us-gaap_LiabilitiesCurrent us-gaap true credit instant No definition available. false false false false false false 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 true false false -149000000 -149 false false false xbrli:monetaryItemType monetary Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 21 -Article 5 false 473 Other current liabilities 2 lll_OtherCurrentLiabilities lll false credit instant Other Current Liabilities. 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 false false false 0 0 false false false 3 false true false false -69000000 -69 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Other Current Liabilities. No authoritative reference available. false 474 Other long-term liabilities 2 lll_OtherLongTermLiabilities lll false credit instant Other long-term liabilities. false false false false false false false false false false false verboselabel false 1 false true false false -425000000 -425 false false false 2 false false false false 0 0 false false false 3 false true false false -425000000 -425 false false false 4 false false false false 0 0 false false false 5 false true false false 0 0 false false false xbrli:monetaryItemType monetary Other long-term liabilities. No authoritative reference available. false 475 Amounts due to consolidated subsidiaries 2 us-gaap_DueToRelatedPartiesNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false -260000000 -260 false false false xbrli:monetaryItemType monetary Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 57 -Paragraph 2 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 23 -Article 5 false 476 Long-term debt 2 us-gaap_LongTermDebtNoncurrent us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 0 0 false false false 4 false false false false 0 0 false false false 5 false true false false -676000000 -676 false false false xbrli:monetaryItemType monetary Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 true 477 Total liabilities 2 us-gaap_Liabilities us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false -1187000000 -1187 false false false 2 false false false false 0 0 false false false 3 false true false false -1187000000 -1187 false false false 4 false false false false 0 0 false false false 5 false true false false -1085000000 -1085 false false false xbrli:monetaryItemType monetary Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. No authoritative reference available. true 478 L-3 shareholders' equity 2 us-gaap_StockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false terselabel false 1 false true false false -18716000000 -18716 false false false 2 false false false false 0 0 false false false 3 false true false false -18716000000 -18716 false false false 4 false false false false 0 0 false false false 5 false true false false -17265000000 -17265 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section E Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 false 479 Noncontrolling interests 2 us-gaap_MinorityInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false 90000000 90 false false false 2 false false false false 0 0 false false false 3 false true false false 90000000 90 false false false 4 false false false false 0 0 false false false 5 false true false false 93000000 93 false false false xbrli:monetaryItemType monetary Total of all Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 27 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 20 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 480 Total equity 2 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false -18626000000 -18626 false false false 2 false false false false 0 0 false false false 3 false true false false -18626000000 -18626 false false false 4 false false false false 0 0 false false false 5 false true false false -17172000000 -17172 false false false xbrli:monetaryItemType monetary Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 25 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 26 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A3 -Appendix A true 481 Total liabilities and equity 2 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant No definition available. false false false false false false false false false false false totallabel false 1 false true false false -19813000000 -19813 false false false 2 false false false false 0 0 false false false 3 false true false false -19813000000 -19813 false false false 4 false false false false 0 0 false false false 5 false true false false -18257000000 -18257 false false false xbrli:monetaryItemType monetary Total of all Liabilities and Stockholders' Equity items. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 32 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 25 -Article 7 true 482 Condensed Combining Statements of Operations: 2 us-gaap_IncomeStatementAbstract us-gaap true na duration No definition available. 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 No definition available. false 483 Net sales 2 us-gaap_Revenues us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -68000000 -68 false false false 2 false true false false -33000000 -33 false false false 3 false true false false -208000000 -208 false false false 4 false true false false -97000000 -97 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 false 484 Cost of sales 2 us-gaap_CostOfGoodsAndServicesSold us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -88000000 -88 false false false 2 false true false false -51000000 -51 false false false 3 false true false false -270000000 -270 false false false 4 false true false false -150000000 -150 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 false 485 Operating income 2 us-gaap_OperatingIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel 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 62000000 62 false false false 4 false true false false 53000000 53 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net result for the period of deducting operating expenses from operating revenues. No authoritative reference available. false 486 Interest and other income, net 2 us-gaap_NonoperatingGainsLosses us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -28000000 -28 false false false 2 false true false false -28000000 -28 false false false 3 false true false false -86000000 -86 false false false 4 false true false false -85000000 -85 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The aggregate amount of gains (losses) resulting from nonoperating activities (for example, interest and dividend revenue, property, plant and equipment impairment loss, and so forth.) Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 false 487 Interest expense 2 us-gaap_InterestExpense us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -40000000 -40 false false false 2 false true false false -39000000 -39 false false false 3 false true false false -120000000 -120 false false false 4 false true false false -118000000 -118 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 9 -Subsection II Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 false 489 (Loss) income before income taxes 2 lll_IncomeLossFromContinuingOperationsBeforeIncomeTaxes lll false credit duration Income from continuing operations before income taxes. false false false false false false false false false false false verboselabel false 1 false true false false 32000000 32 false false false 2 false true false false 29000000 29 false false false 3 false true false false 96000000 96 false false false 4 false true false false 86000000 86 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Income from continuing operations before income taxes. No authoritative reference available. false 490 (Benefit) provision for income taxes 2 us-gaap_IncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 11000000 11 false false false 2 false true false false 9000000 9 false false false 3 false true false false 35000000 35 false false false 4 false true false false 29000000 29 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph a, b false 491 Equity in net income of consolidated subsidiaries 2 lll_EquityInNetIncomeOfConsolidatedSubsidiaries lll false credit duration Equity in net income of consolidated subsidiaries. false false false false false false false false false false false totallabel false 1 false true false false -453000000 -453 false false false 2 false true false false -473000000 -473 false false false 3 false true false false -1286000000 -1286 false false false 4 false true false false -1271000000 -1271 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Equity in net income of consolidated subsidiaries. No authoritative reference available. true 492 Net income 2 us-gaap_ProfitLoss us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false -432000000 -432 false false false 2 false true false false -453000000 -453 false false false 3 false true false false -1225000000 -1225 false false false 4 false true false false -1214000000 -1214 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 493 Net income attributable to noncontrolling interests 2 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 3000000 3 false false false 2 false true false false 3000000 3 false false false 3 false true false false 7000000 7 false false false 4 false true false false 7000000 7 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of net income (loss) attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 false 494 Net income attributable to L-3 2 us-gaap_NetIncomeLoss us-gaap true credit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false -435000000 -435 false false false 2 false true false false -456000000 -456 false false false 3 false true false false -1232000000 -1232 false false false 4 false true false false -1221000000 -1221 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 true 495 Operating activities: 2 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. 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 The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 496 Net cash from operating activities 2 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -631000000 -631 false false false 4 false true false false -482000000 -482 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 497 Investing activities: 2 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration No definition available. 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 No definition available. false 499 Other investing activities 2 lll_OtherInvestingActivities lll false credit duration Other investing activities. false false false false false false false false false false true negated false 1 false false false false 0 0 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 true false false 55000000 55 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Other investing activities. No authoritative reference available. false 500 Net cash used in investing activities 2 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 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 true false false 55000000 55 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 501 Financing activities: 2 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration No definition available. 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 No definition available. false 505 Other financing activities 2 lll_OtherFinancingActivities lll false credit duration Other financing activities. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 618000000 618 false false false 4 false true false false 465000000 465 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Other financing activities. No authoritative reference available. false 506 Net cash from (used in) financing activities 2 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 618000000 618 false false false 4 false true false false 465000000 465 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 508 Net (decrease) increase in cash 2 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false 80000000 80 false false false 4 false true false false 38000000 38 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary The net change between the beginning and ending balance of cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 false 509 Cash and cash equivalents, beginning of the period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false true false false periodstartlabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -149000000 -149 false false false 4 false true false false -83000000 -83 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 510 Cash and cash equivalents, end of the period 2 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false false true false periodendlabel false 1 true true false false -69000000 -69 false false false 2 true true false false -45000000 -45 false false false 3 true true false false -69000000 -69 false false false 4 true true false false -45000000 -45 false false false 5 false false false false 0 0 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 1 Unaudited 2 The current portion of long-term debt at September 24, 2010 includes the carrying value of L-3 Holdings' $700 million CODES, as the holders of the CODES may require us to repurchase them in whole or in part at a cash price equal to 100% of the principal amount (plus accrued and unpaid interest, including contingent interest and additional interest, if any) through the exercise of a "put" option on February 1, 2011. 3 The net decrease in goodwill from foreign currency translation adjustments is primarily due to the strengthening of the U.S. dollar against the Euro in the year-to-date period ended September 24, 2010. 4 Incurred costs include IRAD and B and P costs of $87 million for the quarter ended September 24, 2010, $76 million for the quarter ended September 25, 2009, $260 million for the year-to-date period ended September 24, 2010 and $231 million for the year-to-date period ended September 25, 2009. 5 285 false Millions UnKnown UnKnown false true