v3.26.1
Cover
 6 Months Ended
Jun. 30, 2026
shares
Cover [Abstract]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Jun. 30, 2026
Document Transition Report false
Entity File Number 001-5424
Entity Registrant Name DELTA AIR LINES, INC.
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 58-0218548
Entity Address, Address Line One 1030 Delta Boulevard
Entity Address, City or Town Atlanta
Entity Address, State or Province GA
Entity Address, Postal Zip Code 30354-1989
City Area Code 404
Local Phone Number 715-2191
Title of 12(b) Security Common Stock, par value $0.0001 per share
Trading Symbol DAL
Security Exchange Name NYSE
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Large Accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock, Shares Outstanding 657,623,030
Entity Central Index Key 0000027904
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q2
Amendment Flag false