XML 44 R31.htm IDEA: XBRL DOCUMENT v3.25.2

REVENUE RECOGNITION - Loyalty Program Liability (Details) - Loyalty program - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Loyalty program activity
Current and noncurrent deferred revenue, beginning	$ 8,826	$ 8,420
Miles earned	3,605	3,303
Miles redeemed for air travel	(3,140)	(2,798)
Miles redeemed for non-air travel and other	(169)	(173)
Current and noncurrent deferred revenue, ending	$ 9,122	$ 8,752

X

- Definition

Loyalty Program Liability Activity

+ References

No definition available.

+ Details

Name:	dal_LoyaltyProgramLiabilityActivityRollForward
Namespace Prefix:	dal_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Loyalty Program Liability, Mileage Credits Earned

+ References

No definition available.

+ Details

Name:	dal_LoyaltyProgramLiabilityMileageCreditsEarned
Namespace Prefix:	dal_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Loyalty Program Liability, Non-Travel Mileage Credits Redeemed

+ References

No definition available.

+ Details

Name:	dal_LoyaltyProgramLiabilityNonTravelMileageCreditsRedeemed
Namespace Prefix:	dal_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Loyalty Program Liability, Travel Mileage Credits Redeemed

+ References

No definition available.

+ Details

Name:	dal_LoyaltyProgramLiabilityTravelMileageCreditsRedeemed
Namespace Prefix:	dal_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-2

+ Details

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

X

- Details

Name:	srt_ProductOrServiceAxis=dal_ProductAndServiceOtherLoyaltyProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: