1.0.0.3 false Consolidated Condensed Balance Sheets (USD $) In Millions false 1 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 false 2 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 5 Assets: 3 us-gaap_AssetsAbstract 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 6 Cash and cash equivalents 4 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 true true 1558000000 1558 false false 2 true true 1191000000 1191 false false No definition available. No authoritative reference available. false 7 Accounts receivables, less allowances of $3 and $2 4 us-gaap_AccountsReceivableNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 15000000 15 false false 2 false true 7000000 7 false false No definition available. No authoritative reference available. false 8 Other receivables 4 us-gaap_OtherReceivables us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 35000000 35 false false 2 false true 55000000 55 false false No definition available. No authoritative reference available. false 9 Inventories 4 us-gaap_InventoryNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 326000000 326 false false 2 false true 255000000 255 false false No definition available. No authoritative reference available. false 10 Deferred income taxes 4 us-gaap_DeferredTaxAssetsNetCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 454000000 454 false false 2 false true 454000000 454 false false No definition available. No authoritative reference available. false 11 Other current assets 4 us-gaap_OtherAssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 75000000 75 false false 2 false true 0 0 false false No definition available. No authoritative reference available. true 12 Total current assets 4 us-gaap_AssetsCurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 2463000000 2463 false false 2 false true 1962000000 1962 false false No definition available. No authoritative reference available. false 13 Plant and equipment 4 us-gaap_PropertyPlantAndEquipmentNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 221000000 221 false false 2 false true 218000000 218 false false No definition available. No authoritative reference available. false 14 Prepaid pension assets 4 us-gaap_DefinedBenefitPlanNoncurrentAssetsForPlanBenefits us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 37000000 37 false false 2 false true 36000000 36 false false No definition available. No authoritative reference available. false 15 Deferred income taxes 4 us-gaap_DeferredTaxAssetsNetNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 67000000 67 false false 2 false true 71000000 71 false false No definition available. No authoritative reference available. false 16 Other assets 4 us-gaap_OtherAssetsNoncurrent us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 46000000 46 false false 2 false true 34000000 34 false false No definition available. No authoritative reference available. true 17 Total assets 4 us-gaap_Assets us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 2834000000 2834 false false 2 false true 2321000000 2321 false false No definition available. No authoritative reference available. true 18 Liabilities and Shareholders' Equity: 3 us-gaap_LiabilitiesAndStockholdersEquityAbstract 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 19 Accounts and drafts payable 4 us-gaap_AccountsPayable us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 23000000 23 false false 2 false true 30000000 30 false false No definition available. No authoritative reference available. false 20 Accrued liabilities 4 us-gaap_AccruedLiabilities us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 386000000 386 false false 2 false true 255000000 255 false false No definition available. No authoritative reference available. false 21 Settlement costs 4 lo_SettlementCosts lo false credit instant monetary Settlement costs false false false false false false false false false 1 false true 604000000 604 false false 2 false true 974000000 974 false false Settlement costs No authoritative reference available. false 22 Income taxes 4 us-gaap_AccruedIncomeTaxesPayable us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 5000000 5 false false 2 false true 14000000 14 false false No definition available. No authoritative reference available. true 23 Total current liabilities 4 us-gaap_LiabilitiesCurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1018000000 1018 false false 2 false true 1273000000 1273 false false No definition available. No authoritative reference available. false 24 Long-term debt 4 us-gaap_LongTermDebtNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 750000000 750 false false 2 false true 0 0 false false No definition available. No authoritative reference available. false 25 Postretirement pension, medical and life insurance benefits 4 us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansNoncurrentLiabilities us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 309000000 309 false false 2 false true 317000000 317 false false No definition available. No authoritative reference available. false 26 Other liabilities 4 us-gaap_OtherLiabilitiesNoncurrent us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 98000000 98 false false 2 false true 100000000 100 false false No definition available. No authoritative reference available. true 27 Total liabilities 4 us-gaap_Liabilities us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 2175000000 2175 false false 2 false true 1690000000 1690 false false No definition available. No authoritative reference available. true 29 Shareholders' Equity: 4 us-gaap_StockholdersEquityAbstract 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 30 Preferred stock, $0.01 par value, authorized 10 million shares 5 us-gaap_PreferredStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 0 0 false false No definition available. No authoritative reference available. false 31 Common stock: 5 lo_CommonStockAbstract lo false na duration string Common stock. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false Common stock. false 32 Authorized - 600 million shares; par value - $0.01 per share Issued - 174 million and 174 million shares Outstanding - 166 million and 174 million shares 6 us-gaap_CommonStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 2000000 2 false false 2 false true 2000000 2 false false No definition available. No authoritative reference available. false 33 Additional paid-in capital 5 us-gaap_AdditionalPaidInCapitalCommonStock us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 229000000 229 false false 2 false true 222000000 222 false false No definition available. No authoritative reference available. false 34 Earnings retained in the business 5 us-gaap_RetainedEarningsAccumulatedDeficit us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1126000000 1126 false false 2 false true 965000000 965 false false No definition available. No authoritative reference available. false 35 Accumulated other comprehensive loss 5 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -152000000 -152 false false 2 false true -158000000 -158 false false No definition available. No authoritative reference available. true 36 Shareholders' equity before treasury shares 5 lo_ShareholdersEquityBeforeTreasuryShares lo false credit instant monetary Shareholders' equity before treasury shares false false false false false false false false false 1 false true 1205000000 1205 false false 2 false true 1031000000 1031 false false Shareholders' equity before treasury shares No authoritative reference available. false 37 Treasury shares at cost, 8 million and 6 million shares 5 us-gaap_TreasuryStockValue us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true -546000000 -546 false false 2 false true -400000000 -400 false false No definition available. No authoritative reference available. true 38 Total shareholders' equity 5 us-gaap_StockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 659000000 659 false false 2 false true 631000000 631 false false No definition available. No authoritative reference available. true 39 Total liabilities and shareholders' equity 4 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 true true 2834000000 2834 false false 2 true true 2321000000 2321 false false No definition available. No authoritative reference available. true false 2 34 false Millions UnKnown UnKnown false true