Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	$ 4,420	$ 4,373
International routes and slots [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	2,287	2,240
Delta tradename [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	850	850
SkyTeam related assets [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	661	661
Domestic slots [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	$ 622	$ 622