Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Indefinite-Lived Intangible Assets [Table Text Block]

	Carrying Amount at December 31,
(in millions)	2013		2012
International routes and slots	$	2,287	$	2,240
Delta tradename	850		850
SkyTeam related assets	661		661
Domestic slots	622		622
Total	$	4,420	$	4,373

Definite-Lived Intangible Assets [Table Text Block]

	December 31, 2013					December 31, 2012
(in millions)	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Marketing agreements	$	730	$	(602	)	$	730	$	(545	)
Contracts	193		(83		)	193		(72		)
Other	53		(53		)	53		(53		)
Total	$	976	$	(738	)	$	976	$	(670	)

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

The following table summarizes the estimated aggregate amortization expense for each of the five succeeding fiscal years:

Years Ending December 31, (in millions)
2014	$	67
2015	67
2016	9
2017	9
2018	8