2.2.0.7 true Share Repurchase Program (Details) (USD $) 0612 - Disclosure - Share Repurchase Program (Details) true false In Millions, except Per Share data false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 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 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ false 2 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 3 false false false 4 false false false 5 false false false 6 false false false 7 false false false 8 false false false 9 false false false 10 false false false 11 true false false false lo_ShareRepurchaseProgramPartOneMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartOneMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 false 12 USD true false false false lo_ShareRepurchaseProgramPartOneMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartOneMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 13 true false false false lo_ShareRepurchaseProgramPartTwoMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartTwoMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 false 14 USD true false false false lo_ShareRepurchaseProgramPartTwoMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartTwoMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 15 true false false false lo_ShareRepurchaseProgramPartThreeMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartThreeMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 false 16 USD true false false false lo_ShareRepurchaseProgramPartThreeMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartThreeMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 17 true false false false lo_ShareRepurchaseProgramPartFourMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartFourMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 false 18 USD true false false false lo_ShareRepurchaseProgramPartFourMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartFourMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ false 19 USD true false false false lo_ShareRepurchaseProgramPartFiveMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartFiveMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 20 true false false false lo_ShareRepurchaseProgramPartFiveMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartFiveMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 false 21 USD true false false false lo_ShareRepurchaseProgramPartFiveMember us-gaap_EquityClassOfTreasuryStockAxis xbrldi http://xbrl.org/2006/xbrldi lo_ShareRepurchaseProgramPartFiveMember us-gaap_EquityClassOfTreasuryStockAxis explicitMember USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ 5 Share Repurchase Program [Abstract] 3 us-gaap_TreasuryStockNoteDisclosureAbstract us-gaap true na duration No definition available. false false false false false true false false false false false 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 6 false false false false 0 0 false false false 7 false false false false 0 0 false false false 8 false false false false 0 0 false false false 9 false false false false 0 0 false false false 10 false false false false 0 0 false false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false 20 false false false false 0 0 true false false 21 false false false false 0 0 true false false xbrli:stringItemType string No definition available. false 6 Authorization Date 4 lo_AuthorizationDate lo false na instant Authorization Date. 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 August 2010 August 2010 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 February 2010 February 2010 false false false 5 false false false false 0 0 false false false 6 false false false false 0 0 false false false 7 false false false false 0 0 July 2009 July 2009 false false false 8 false false false false 0 0 May 2009 May 2009 false false false 9 false false false false 0 0 false false false 10 false false false false 0 0 July 2008 July 2008 false false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false 20 false false false false 0 0 true false false 21 false false false false 0 0 true false false xbrli:stringItemType string Authorization Date. No authoritative reference available. false 7 Amount Authorized 4 lo_AuthorizedAmountForShareRepurchaseProgram lo false na instant Authorized Amount For Share Repurchase Program false false false false false false false false false false false terselabel false 1 true true false false 2650000000 2650 false false false 2 true true false false 1000000000 1000 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 6 false false false false 0 0 false false false 7 false false false false 0 0 false false false 8 false false false false 0 0 false false false 9 false false false false 0 0 false false false 10 false false false false 0 0 false false false 11 false false false false 0 0 true false false 12 true true false false 400000000 400 true false false 13 false false false false 0 0 true false false 14 true true false false 250000000 250 true false false 15 false false false false 0 0 true false false 16 true true false false 750000000 750 true false false 17 false false false false 0 0 true false false 18 true true false false 250000000 250 true false false 19 false false false false 0 0 true false false 20 false false false false 0 0 true false false 21 true true false false 1000000000 1000 true false false xbrli:monetaryItemType monetary Authorized Amount For Share Repurchase Program No authoritative reference available. false 8 Completed 4 lo_ShareRepurchaseProgramCompleted lo false na instant Share repurchase program completed. 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 May 2010 May 2010 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 January 2010 January 2010 false false false 6 false false false false 0 0 July 2009 July 2009 false false false 7 false false false false 0 0 false false false 8 false false false false 0 0 false false false 9 false false false false 0 0 October 2008 October 2008 false false false 10 false false false false 0 0 false false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false 20 false false false false 0 0 true false false 21 false false false false 0 0 true false false xbrli:stringItemType string Share repurchase program completed. No authoritative reference available. false 9 Number of Shares Repurchased 4 us-gaap_TreasuryStockSharesAcquired us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 23700000 23.7 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 6 false false false false 0 0 false false false 7 false false false false 0 0 false false false 8 false false false false 0 0 false false false 9 false false false false 0 0 false false false 10 false false false false 0 0 false false false 11 false true false false 5900000 5.9 true false false 12 false false false false 0 0 true false false 13 false true false false 3700000 3.7 true false false 14 false false false false 0 0 true false false 15 false true false false 9700000 9.7 true false false 16 false false false false 0 0 true false false 17 false true false false 3300000 3.3 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false 20 false true false false 1100000 1.1 true false false 21 false false false false 0 0 true false false xbrli:sharesItemType shares Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 false 10 Share Repurchase Program (Textuals) 3 lo_ShareRepurchaseProgramTextualsAbstract lo false na duration Share Repurchase Program Textuals Abstract. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false 4 false false false false 0 0 false false false 5 false false false false 0 0 false false false 6 false false false false 0 0 false false false 7 false false false false 0 0 false false false 8 false false false false 0 0 false false false 9 false false false false 0 0 false false false 10 false false false false 0 0 false false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 false false false false 0 0 true false false 20 false false false false 0 0 true false false 21 false false false false 0 0 true false false xbrli:stringItemType string Share Repurchase Program Textuals Abstract. false 11 Authorized amount for repurchase of outstanding common stock 4 lo_AuthorizedAmountForShareRepurchaseProgram lo false na instant Authorized Amount For Share Repurchase Program false false false false false false false false false false false verboselabel false 1 false true false false 2650000000 2650 false false false 2 false true false false 1000000000 1000 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 6 false false false false 0 0 false false false 7 false false false false 0 0 false false false 8 false false false false 0 0 false false false 9 false false false false 0 0 false false false 10 false false false false 0 0 false false false 11 false false false false 0 0 true false false 12 false true false false 400000000 400 true false false 13 false false false false 0 0 true false false 14 false true false false 250000000 250 true false false 15 false false false false 0 0 true false false 16 false true false false 750000000 750 true false false 17 false false false false 0 0 true false false 18 false true false false 250000000 250 true false false 19 false false false false 0 0 true false false 20 false false false false 0 0 true false false 21 false true false false 1000000000 1000 true false false xbrli:monetaryItemType monetary Authorized Amount For Share Repurchase Program No authoritative reference available. false 12 Average per share price of repurchase of common stock 4 us-gaap_TreasuryStockAcquiredAverageCostPerShare us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel true 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 6 false false false false 0 0 false false false 7 false false false false 0 0 false false false 8 false false false false 0 0 false false false 9 false false false false 0 0 false false false 10 false false false false 0 0 false false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 true true false false 81.1 81.1 true false false 20 false false false false 0 0 true false false 21 false false false false 0 0 true false false us-types:perShareItemType decimal Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 1 -Section B -Paragraph 7 -Subparagraph b false 13 Payments for Repurchase of Common Stock 4 us-gaap_PaymentsForRepurchaseOfCommonStock us-gaap true credit duration No definition available. false false false false false false false false false false false verboselabel false 1 true true false false 431000000 431 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 6 false false false false 0 0 false false false 7 false false false false 0 0 false false false 8 false false false false 0 0 false false false 9 false false false false 0 0 false false false 10 false false false false 0 0 false false false 11 false false false false 0 0 true false false 12 false false false false 0 0 true false false 13 false false false false 0 0 true false false 14 false false false false 0 0 true false false 15 false false false false 0 0 true false false 16 false false false false 0 0 true false false 17 false false false false 0 0 true false false 18 false false false false 0 0 true false false 19 true true false false 91000000 91 true false false 20 false false false false 0 0 true false false 21 false false false false 0 0 true false false xbrli:monetaryItemType monetary The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 21 9 false Millions HundredThousands NoRounding false true