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Long-term Debt, Short-term Borrowings and Finance Lease Obligations - Short Term Debt Borrowings (Details) - USD ($) | Oct. 21, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Jul. 28, 2022 | May 16, 2022
--- | --- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |  |
Common Stock, Par or Stated Value Per Share |  | $ 0.01 | $ 0.01 |  |
Spirit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Common Stock, Par or Stated Value Per Share |  |  |  | $ 0.0001 | $ 0.0001
Acquisition price (in dollars per share) |  |  |  | $ 33.50 | $ 30.00
Senior Notes | Senior Secured Bridge Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term line of credit |  | $ 0 | $ 0 |  |
Debt instrument, face amount |  |  |  |  | $ 3,500,000,000
Citibank | Line of Credit | Second Amended And Restated Agreement |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term line of credit |  | 0 | 0 |  |
Line of credit facility, maximum borrowing capacity | $ 600,000,000 |  |  |  |
Debt instrument, basis spread on variable rate | 1.00% |  |  |  |
Variable rate | 0.00% |  |  |  |
Citibank | Line of Credit | Second Amended And Restated Agreement | SOFR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, basis spread on variable rate | 2.00% |  |  |  |
Goldman Sachs Bank USA, Bank of America, N.A. and BofA Securities, Inc | Senior Secured Bridge Facility | Spirit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, face amount |  |  |  |  | 3,500,000,000
Goldman Sachs Bank USA, Bank of America, N.A. and BofA Securities, Inc | Bridge Facility | Senior Secured Bridge Facility | Spirit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, face amount |  | 3,000,000,000 |  |  | $ 3,500,000,000
Revolving Credit Facility and Letter of Credit Facility | Morgan Stanley | Line of Credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, current borrowing capacity |  | 200,000,000 |  |  |
Long-term line of credit |  | $ 0 | $ 0 |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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