XML 17 R42.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Fair Value Instruments - Carrying and Estimated Fair Value of Debt (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2006 | Mar. 31, 2015
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5.75% Notes due 2016 |  |
Debt Instrument [Line Items] |  |
Stated interest rate | 5.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2016Member |
5.75% Notes due 2016 | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | $ 311 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2016Member / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Stated interest rate |  | 5.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2016Member / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
5.25% Convertible Senior Notes due 2016 | Convertible Debt |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 113 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_ConvertibleDebtDue2016Member / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember
Stated interest rate |  | 5.25%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_ConvertibleDebtDue2016Member / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember
5.125% Notes due 2017 | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 314 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2017Member / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Stated interest rate |  | 5.125%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2017Member / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
French Credit Agreements due 2018 - 1.06% | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 36 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_CreditAgreementsDue2018Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Stated interest rate |  | 1.06%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_CreditAgreementsDue2018Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Fixed-rate 737 Aircraft Notes payable through 2018 - 7.02% | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 22 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_NotesPayableAircraftFixedRateThrough2018Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Stated interest rate |  | 7.02%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_NotesPayableAircraftFixedRateThrough2018Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
2.75% Notes Due 2019 | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 305 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2019MemberMember / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Stated interest rate |  | 2.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2019MemberMember / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Term Loan Agreement due 2019 - 6.315% | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 169 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_TermLoanAgreementDue05062019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Stated interest rate |  | 6.315%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_TermLoanAgreementDue05062019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Term Loan Agreement due 2019 - 6.84% | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 67 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_TermLoanAgreementDue07012019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Stated interest rate |  | 6.84%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_TermLoanAgreementDue07012019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Term Loan Agreement due 2020 - 5.223% | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 362 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_TermLoanAgreementDue2020Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Stated interest rate |  | 5.223%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_TermLoanAgreementDue2020Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Floating-rate 737 Aircraft Notes payable through 2020 | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 288 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_NotesPayableAircraftFloatingRateThrough2020Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Pass Through Certificates due 2022 - 6.24% | Enhanced Equipment Trust Certificate |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 347 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_TotalPassThroughCertificatesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_EnhancedEquipmentTrustCertificateMember
Stated interest rate |  | 6.24%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_TotalPassThroughCertificatesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_EnhancedEquipmentTrustCertificateMember
7.375% Debentures due 2027 | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Carrying amount of debt |  | 134 us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2027Member / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Stated interest rate |  | 7.375%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2027Member / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Level 2 | 5.75% Notes due 2016 | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Notes Payable, Fair Value |  | 334 us-gaap_NotesPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2016Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Level 2 | 5.25% Convertible Senior Notes due 2016 | Convertible Debt |  |
Debt Instrument [Line Items] |  |
Notes Payable, Fair Value |  | 330 us-gaap_NotesPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_ConvertibleDebtDue2016Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember
Level 2 | 5.125% Notes due 2017 | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Notes Payable, Fair Value |  | 336 us-gaap_NotesPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2017Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Level 2 | 2.75% Notes Due 2019 | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Notes Payable, Fair Value |  | 313 us-gaap_NotesPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2019MemberMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Level 2 | Pass Through Certificates due 2022 - 6.24% | Enhanced Equipment Trust Certificate |  |
Debt Instrument [Line Items] |  |
Notes Payable, Fair Value |  | 400 us-gaap_NotesPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_TotalPassThroughCertificatesMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_LongtermDebtTypeAxis = us-gaap_EnhancedEquipmentTrustCertificateMember
Level 2 | 7.375% Debentures due 2027 | Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Loans Payable, Fair Value |  | 162 us-gaap_LoansPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_UnsecuredSeniorNotesDue2027Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel2Member / us-gaap_LongtermDebtTypeAxis = us-gaap_UnsecuredDebtMember
Level 3 | French Credit Agreements due 2018 - 1.06% | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Notes Payable, Fair Value |  | 36 us-gaap_NotesPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_CreditAgreementsDue2018Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Level 3 | Fixed-rate 737 Aircraft Notes payable through 2018 - 7.02% | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Notes Payable, Fair Value |  | 22 us-gaap_NotesPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_NotesPayableAircraftFixedRateThrough2018Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Level 3 | Term Loan Agreement due 2019 - 6.315% | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Loans Payable, Fair Value |  | 169 us-gaap_LoansPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_TermLoanAgreementDue05062019Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Level 3 | Term Loan Agreement due 2019 - 6.84% | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Loans Payable, Fair Value |  | 73 us-gaap_LoansPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_TermLoanAgreementDue07012019Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Level 3 | Term Loan Agreement due 2020 - 5.223% | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Loans Payable, Fair Value |  | 356 us-gaap_LoansPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_TermLoanAgreementDue2020Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember
Level 3 | Floating-rate 737 Aircraft Notes payable through 2020 | Notes Payable to Banks |  |
Debt Instrument [Line Items] |  |
Notes Payable, Fair Value |  | $ 282 us-gaap_NotesPayableFairValueDisclosure / us-gaap_DebtInstrumentAxis = luv_NotesPayableAircraftFloatingRateThrough2020Member / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableToBanksMember

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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References 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 FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Fair value portion of contractual obligation to pay money on demand or on fixed or determinable dates. + References No definition available. + Details
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- Definition Fair value portion of notes payable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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