XML 32 R20.htm IDEA: XBRL DOCUMENT
v3.20.2

Summary of Significant Accounting Policies (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2020
Accounting Policies [Abstract] |
Schedule of marketable securities | The aggregate carrying values of our short-term and long-term investment securities consisted of the following at June 30, 2020 and December 31, 2019 (in millions):
| June 30, 2020 |  | December 31, 2019
Available-for-sale securities |  |  |
Time deposits | $ | 294 |  |  | $ | 325 |
Commercial paper | 20 |  |  | 20 |
Debt securities | 8 |  |  | 6 |
Total available-for-sale securities | 322 |  |  | 351 |
Held-to-maturity securities |  |  |
Corporate bonds | 21 |  |  | 21 |
Total held-to-maturity securities | 21 |  |  | 21 |
Total investment securities | $ | 343 |  |  | $ | 372 |

X
- Definition Tabular disclosure of investment securities. + References No definition available. + Details
Name: | jblu_ScheduleOfMarketableSecuritiesTableTextBlock
Namespace Prefix: | jblu_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration