1.0.0.3 true Unaudited Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data false 1 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 false 2 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 2 Current assets: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 3 Allowances 2 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 true true 33000000 33 false false 2 true true 26000000 26 false false No definition available. No authoritative reference available. false 10 L-3 Communications Holdings, Inc. 0 na true na na na No definition available. false true false false false false false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. No authoritative reference available. false 13 Equity: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 14 Common stock, par value 2 us-gaap_CommonStockParOrStatedValuePerShare us-gaap true na instant decimal No definition available. false false false false false false false false false 1 false true 0.01 0.01 false false 2 false true 0.01 0.01 false false No definition available. No authoritative reference available. false 15 Common stock, shares authorized 2 us-gaap_CommonStockSharesAuthorized us-gaap true na instant shares No definition available. false false false false false false false false false 1 false true 300000000 300000000.00 false false 2 false true 300000000 300000000.00 false false No definition available. No authoritative reference available. false 17 Common stock, shares outstanding 2 us-gaap_CommonStockSharesOutstanding us-gaap true na instant shares No definition available. false false false false false false false false false 1 false true 116136178 116136178.00 false false 2 false true 118633746 118633746.00 false false No definition available. No authoritative reference available. false 18 Treasury stock at cost, shares 2 us-gaap_TreasuryStockShares us-gaap true na instant shares No definition available. false false false false false false false false false 1 false true 19633649 19633649.00 false false 2 false true 13995450 13995450.00 false false No definition available. No authoritative reference available. false 19 Wholly Owned Subsidiaries Member 0 na true na na na No definition available. false true false false false false false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. No authoritative reference available. false 22 Equity: 2 us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 23 Common stock, par value 2 us-gaap_CommonStockParOrStatedValuePerShare us-gaap true na instant decimal No definition available. false false false false false false false false false 1 false true 0.01 0.01 false false 2 false true 0.01 0.01 false false No definition available. No authoritative reference available. false 24 Common stock, shares authorized 2 us-gaap_CommonStockSharesAuthorized us-gaap true na instant shares No definition available. false false false false false false false false false 1 false true 100 100.00 false false 2 false true 100 100.00 false false No definition available. No authoritative reference available. false 25 Common stock, shares issued 2 us-gaap_CommonStockSharesIssued us-gaap true na instant shares No definition available. false false false false false false false false false 1 false true 100 100.00 false false 2 false true 100 100.00 false false No definition available. No authoritative reference available. false 26 Common stock, shares outstanding 2 us-gaap_CommonStockSharesOutstanding us-gaap true na instant shares No definition available. false false false false false false false false false 1 false true 100 100.00 false false 2 false true 100 100.00 false false No definition available. No authoritative reference available. false false 2 14 false Millions NoRounding UnKnown false true