Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Indefinite-Lived Intangible Assets

	Carrying Value at December 31,
(in millions)	2015		2014
International routes and slots	$	2,563	$	2,287
Delta tradename	850		850
SkyTeam-related assets	661		661
Domestic slots	622		622
Total	$	4,696	$	4,420

Definite-Lived Intangible Assets

	December 31, 2015					December 31, 2014
(in millions)	Gross Carrying Value		Accumulated Amortization			Gross Carrying Value		Accumulated Amortization
Marketing agreements	$	730	$	(658	)	$	730	$	(648	)
Contracts	193		(100		)	193		(92		)
Other	53		(53		)	53		(53		)
Total	$	976	$	(811	)	$	976	$	(793	)