Percentage Of Employees Represented By Unions Under Collective Bargaining Agreements

No definition available.

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Namespace Prefix:	dal_
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- Definition

Unrecorded Unconditional Purchase Obligation with Purchase Options

+ References

No definition available.

+ Details

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Namespace Prefix:	dal_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of persons employed by the Entity

+ References

No definition available.

+ Details

Name:	dei_EntityNumberOfEmployees
Namespace Prefix:	dei_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=73718637&loc=d3e25336-109308

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimum number of units that must be purchased, in connection with an unconditional purchase obligation that has not been recognized for financial reporting purposes.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

- Details

Name:	us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis=us-gaap_CapitalAdditionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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- Details

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Data Type:	na
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- Details

Name:	us-gaap_AircraftTypeAxis=dal_A321200Member
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Data Type:	na
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Commitments and Contingencies - Narrative (Details) $ in Millions	Dec. 31, 2016 USD ($) employee aircraft	Jun. 30, 2016 aircraft
Unrecorded Unconditional Purchase Obligation
Entity number of employees \| employee	84,000
Percentage of employees represented by unions under collective bargaining agreements	19.00%
Refinery employees
Unrecorded Unconditional Purchase Obligation
Entity number of employees \| employee	199
Future aircraft purchase commitments
Unrecorded Unconditional Purchase Obligation
Future aircraft purchase obligations \| $	$ 12,460
Aircraft purchase commitments, minimum quantity required	245
Future aircraft purchase commitments \| CS100
Unrecorded Unconditional Purchase Obligation
Aircraft purchase commitments, minimum quantity required	75
Future aircraft purchase commitments \| CS100 \| Bombardier
Unrecorded Unconditional Purchase Obligation
Aircraft purchase commitments, minimum quantity required		75
Aircraft purchase commitments with purchase options		50
Future aircraft purchase commitments \| A321-200
Unrecorded Unconditional Purchase Obligation
Aircraft purchase commitments, minimum quantity required	67
Future aircraft purchase commitments \| A321-200 \| Airbus
Unrecorded Unconditional Purchase Obligation
Aircraft purchase commitments, minimum quantity required		37