Summary of Significant Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation JetBlue Airways Corporation (“JetBlue”) provides air transportation services across the United States, the Caribbean, Latin America, Canada, the United Kingdom and France. Our condensed consolidated financial statements include the accounts of JetBlue and our subsidiaries which are collectively referred to as “we” or the “Company”. All majority-owned subsidiaries are consolidated on a line-by-line basis, with all intercompany transactions and balances being eliminated. These condensed consolidated financial statements and related notes should be read in conjunction with our 2022 audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2022 (“2022 Form 10-K”). These condensed consolidated financial statements are unaudited and have been prepared by us in accordance with the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”). In our opinion, they reflect all adjustments, including normal recurring items, that are necessary to present fairly the results for interim periods. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) have been condensed or omitted as permitted by such rules and regulations; however, we believe that the disclosures included herein are adequate to make the information presented not misleading.
Cash equivalents	Cash equivalents Our cash equivalents include money market securities and time deposits, which are readily convertible into cash, have maturities of three months or less when purchased, and are considered to be highly liquid and easily tradable. The money market securities are valued using inputs observable in active markets for identical securities and are therefore classified as Level 1 within our fair value hierarchy.
Investment in Debt Securities	Available-for-sale investment securities Our available-for-sale investment securities include investments such as time deposits, commercial paper and convertible debt securities. The fair values of time deposits and commercial paper are based on observable inputs in non-active markets, which are therefore classified as Level 2 in the hierarchy. The fair values of convertible debt securities are based on unobservable inputs and are classified as Level 3 in the hierarchy. Equity investment securities Our equity investment securities include investments in common stocks of publicly traded companies. The fair values of these instruments are classified as Level 1 in the hierarchy as they are based on unadjusted quoted prices in active markets for identical assets. We did not have any material equity investment securities as of June 30, 2023. Our wholly-owned subsidiary, JetBlue Technology Ventures, LLC (“JBV”), has equity investments in emerging companies that do not have readily determinable fair values. In accordance with Topic 321, Investments - Equity Securities of the FASB Codification, we account for these investments using a measurement alternative which allows entities to measure these investments at cost, less any impairment, adjusted for changes from observable price changes in orderly transactions for identifiable or similar investments of the same issuer. Aircraft fuel derivatives Our aircraft fuel derivatives include call spread options which are not traded on public exchanges. Their fair values are determined using a market approach based on inputs that are readily available from public markets for commodities and energy trading activities; therefore, they are classified as Level 2 inputs. The data inputs are combined into qualitative models and processes to generate forward curves and volatility related to the specific terms of the underlying hedge contracts. Held-to-maturity investment securities Our held-to-maturity investment securities consist of corporate bonds, which are stated at amortized cost. If the corporate bonds were measured at fair value, they would be classified as Level 2 in the fair value hierarchy, based on quoted prices in active markets for similar securities. We do not intend to sell these investment securities. Those securities that will mature in twelve months or less are included in short-term investments on our consolidated balance sheets. Those securities with remaining maturities greater than twelve months are included in long-term investments on our consolidated balance sheets. Investments in Debt Securities Investments in debt securities consist of available-for-sale investment securities and held-to-maturity investment securities. When sold, we use a specific identification method to determine the cost of the securities. Refer to Note 7 for an explanation of the fair value hierarchy structure. Available-for-sale investment securities. We did not record any material gains or losses on these securities during the three and six months ended June 30, 2023 and 2022. Held-to-maturity investment securities. We did not record any material gains or losses on held-to-maturity investment securities during the three and six months ended June 30, 2023 and 2022.
Equity Method Investments	Equity Method InvestmentsInvestments in which we can exercise significant influence are accounted for using the equity method in accordance with Topic 323, Investments - Equity Method and Joint Ventures of the FASB Codification.
Other Investments	Other Investments Our equity investment securities include investments in common stocks of publicly traded companies which are stated at fair value. We had an immaterial carrying amount of equity investment securities as of June 30, 2023 and a carrying amount of $8 million as of December 31, 2022 recorded within investment securities in the current asset section of our consolidated balance sheet. We recognized a net realized gain of $4 million and $6 million on our equity investment securities primarily related to the sale of one of our equity investments in other income on our consolidated statement of operations during the three and six months ended June 30, 2023, respectively. We recognized an unrealized loss of $6 million and $8 million in other income on our consolidated statement of operations during the three and six months ended June 30, 2022, respectively. JBV has equity investments in emerging companies which do not have readily determinable fair values. In accordance with Topic 321, Investments - Equity Securities of the FASB Codification, we account for these investments using a measurement alternative that allows entities to measure these investments at cost, less any impairment, adjusted for changes from observable price changes in orderly transactions for identifiable or similar investments of the same issuer. The carrying amount of these investments, which is included within other assets on our consolidated balance sheet,

Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2023

JetBlue Airways Corporation (“JetBlue”) provides air transportation services across the United States, the Caribbean, Latin America, Canada, the United Kingdom and France. Our condensed consolidated financial statements include the accounts of JetBlue and our subsidiaries which are collectively referred to as “we” or the “Company”. All majority-owned subsidiaries are consolidated on a line-by-line basis, with all intercompany transactions and balances being eliminated. These condensed consolidated financial statements and related notes should be read in conjunction with our 2022 audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2022 (“2022 Form 10-K”).

These condensed consolidated financial statements are unaudited and have been prepared by us in accordance with the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”). In our opinion, they reflect all adjustments, including normal recurring items, that are necessary to present fairly the results for interim periods. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) have been condensed or omitted as permitted by such rules and regulations; however, we believe that the disclosures included herein are adequate to make the information presented not misleading.

Cash equivalents

Our cash equivalents include money market securities and time deposits, which are readily convertible into cash, have maturities of three months or less when purchased, and are considered to be highly liquid and easily tradable. The money market securities are valued using inputs observable in active markets for identical securities and are therefore classified as Level 1 within our fair value hierarchy.

Investment in Debt Securities

Available-for-sale investment securities

Our available-for-sale investment securities include investments such as time deposits, commercial paper and convertible debt securities. The fair values of time deposits and commercial paper are based on observable inputs in non-active markets, which are therefore classified as Level 2 in the hierarchy. The fair values of convertible debt securities are based on unobservable inputs and are classified as Level 3 in the hierarchy.

Equity investment securities

Our equity investment securities include investments in common stocks of publicly traded companies. The fair values of these instruments are classified as Level 1 in the hierarchy as they are based on unadjusted quoted prices in active markets for identical assets. We did not have any material equity investment securities as of June 30, 2023.

Our wholly-owned subsidiary, JetBlue Technology Ventures, LLC (“JBV”), has equity investments in emerging companies that do not have readily determinable fair values. In accordance with Topic 321, Investments - Equity Securities of the FASB Codification, we account for these investments using a measurement alternative which allows entities to measure these investments at cost, less any impairment, adjusted for changes from observable price changes in orderly transactions for identifiable or similar investments of the same issuer.

Aircraft fuel derivatives

Our aircraft fuel derivatives include call spread options which are not traded on public exchanges. Their fair values are determined using a market approach based on inputs that are readily available from public markets for commodities and energy trading activities; therefore, they are classified as Level 2 inputs. The data inputs are combined into qualitative models and processes to generate forward curves and volatility related to the specific terms of the underlying hedge contracts.

Held-to-maturity investment securities

Our held-to-maturity investment securities consist of corporate bonds, which are stated at amortized cost. If the corporate bonds were measured at fair value, they would be classified as Level 2 in the fair value hierarchy, based on quoted prices in active markets for similar securities.

We do not intend to sell these investment securities. Those securities that will mature in twelve months or less are included in short-term investments on our consolidated balance sheets. Those securities with remaining maturities greater than twelve months are included in long-term investments on our consolidated balance sheets.

Investments in Debt Securities

Investments in debt securities consist of available-for-sale investment securities and held-to-maturity investment securities. When sold, we use a specific identification method to determine the cost of the securities. Refer to Note 7 for an explanation of the fair value hierarchy structure.

Available-for-sale investment securities. We did not record any material gains or losses on these securities during the three and six months ended June 30, 2023 and 2022.

Held-to-maturity investment securities. We did not record any material gains or losses on held-to-maturity investment securities during the three and six months ended June 30, 2023 and 2022.

Equity Method Investments

Equity Method InvestmentsInvestments in which we can exercise significant influence are accounted for using the equity method in accordance with Topic 323, Investments - Equity Method and Joint Ventures of the FASB Codification.

Other Investments

Our equity investment securities include investments in common stocks of publicly traded companies which are stated at fair value. We had an immaterial carrying amount of equity investment securities as of June 30, 2023 and a carrying amount of $8 million as of December 31, 2022 recorded within investment securities in the current asset section of our consolidated balance sheet. We recognized a net realized gain of $4 million and $6 million on our equity investment securities primarily related to the sale of one of our equity investments in other income on our consolidated statement of operations during the three and six months ended June 30, 2023, respectively. We recognized an unrealized loss of $6 million and $8 million in other income on our consolidated statement of operations during the three and six months ended June 30, 2022, respectively.

JBV has equity investments in emerging companies which do not have readily determinable fair values. In accordance with Topic 321, Investments - Equity Securities of the FASB Codification, we account for these investments using a measurement alternative that allows entities to measure these investments at cost, less any impairment, adjusted for changes from observable price changes in orderly transactions for identifiable or similar investments of the same issuer. The carrying amount of these investments, which is included within other assets on our consolidated balance sheet,