XML 41 R30.htm IDEA: XBRL DOCUMENT
v3.23.3

REVENUE RECOGNITION - Loyalty Program Liability (Details) - Loyalty program - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Loyalty program activity |  |
Current and noncurrent deferred revenue, beginning | $ 7,882 | $ 7,559
Miles earned | 3,164 | 2,496
Miles redeemed for air travel | (2,547) | (2,073)
Miles redeemed for non-air travel and other | (126) | (122)
Current and noncurrent deferred revenue, ending | $ 8,373 | $ 7,860

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 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479837/606-10-45-1 Reference 2: 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 3: 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: |