| Item | Type | Period | Balance | Description | | Indefinite-Lived International Slots and Routes | $ | instant | debit | Carrying amount, (original cost adjusted for any previously recognized amortization and impairment) as of the balance sheet date, of international slots, route authorities, airport operating and gate lease rights and related intangibles. |
| Indefinite-Lived Domestic Slots and Routes | $ | instant | debit | Carrying amount, (original cost adjusted for any previously recognized amortization and impairment) as of the balance sheet date, of domestic slots, route authorities, airport operating and gate lease rights and related intangibles. |
| Indefinite-Lived Slots and Routes, Total | $ | instant | debit | Carrying amount, (original cost adjusted for any previously recognized amortization and impairment) as of the balance sheet date, of slots, route authorities, airport operating and gate lease rights and related intangibles. |