{
 "company": "delta",
 "ticker": "DAL",
 "cusip": "247361702",
 "security": "Common stock",
 "as_of_13f_period": "2026-06-30",
 "generated": "2026-10-31",
 "source": "SEC Form 13F data sets (13F-HR, share positions only; options excluded), https://www.sec.gov/data-research/sec-markets-data/form-13f-data-sets; shares outstanding from 10-Q/10-K cover pages.",
 "excluded_positions": [
  {
   "co": "delta",
   "period": "2026-06-30",
   "manager": "Sixth Street Partners Management Company, L.P.",
   "shares": 4010551
  },
  {
   "co": "delta",
   "period": "2024-03-31",
   "manager": "PAYDEN & RYGEL INVESTMENT GROUP",
   "shares": 309000
  },
  {
   "co": "delta",
   "period": "2023-09-30",
   "manager": "PAYDEN & RYGEL INVESTMENT GROUP",
   "shares": 175400
  }
 ],
 "method": "Institutional % = shares reported on 13F-HR filings for the quarter (latest original or restated filing per manager, plus new-holdings amendments) divided by shares outstanding on the next cover page. 13F totals can double-count where parent and subsidiary managers both report, and exclude non-13F holders. Totals can exceed 100% of shares outstanding, mainly because shares lent to short sellers are reported both by the lending institution and by the buyer.",
 "quarters": [
  {
   "period": "2024-09-30",
   "filers": 1084,
   "inst_shares": 514701139,
   "shares_out": 645281221,
   "shares_out_date": "2024-09-30",
   "shares_out_basis": "Common shares outstanding",
   "inst_pct": 79.8
  },
  {
   "period": "2024-12-31",
   "filers": 1221,
   "inst_shares": 529570901,
   "shares_out": 645962006,
   "shares_out_date": "2025-01-31",
   "shares_out_basis": "Common shares outstanding",
   "inst_pct": 82.0
  },
  {
   "period": "2025-03-31",
   "filers": 1131,
   "inst_shares": 533140405,
   "shares_out": 652955169,
   "shares_out_date": "2025-03-31",
   "shares_out_basis": "Common shares outstanding",
   "inst_pct": 81.7
  },
  {
   "period": "2025-06-30",
   "filers": 1190,
   "inst_shares": 537359932,
   "shares_out": 652948402,
   "shares_out_date": "2025-06-30",
   "shares_out_basis": "Common shares outstanding",
   "inst_pct": 82.3
  },
  {
   "period": "2025-09-30",
   "filers": 1226,
   "inst_shares": 543808822,
   "shares_out": 652962768,
   "shares_out_date": "2025-09-30",
   "shares_out_basis": "Common shares outstanding",
   "inst_pct": 83.3
  },
  {
   "period": "2025-12-31",
   "filers": 1334,
   "inst_shares": 558869182,
   "shares_out": 653130708,
   "shares_out_date": "2026-01-31",
   "shares_out_basis": "Common shares outstanding",
   "inst_pct": 85.6
  },
  {
   "period": "2026-03-31",
   "filers": 1338,
   "inst_shares": 580892595,
   "shares_out": 656994112,
   "shares_out_date": "2026-03-31",
   "shares_out_basis": "Common shares outstanding",
   "inst_pct": 88.4
  },
  {
   "period": "2026-06-30",
   "filers": 1509,
   "inst_shares": 580916813,
   "shares_out": 657623030,
   "shares_out_date": "2026-06-30",
   "shares_out_basis": "Common shares outstanding",
   "inst_pct": 88.3
  }
 ],
 "top_holders": [
  {
   "manager": "Vanguard (all 13F filers)",
   "filer_cik": "fam:VANGUARD",
   "shares": 73195360,
   "pct": 11.13,
   "change_shares": -1676702
  },
  {
   "manager": "Berkshire Hathaway Inc",
   "filer_cik": "0001067983",
   "shares": 57320000,
   "pct": 8.72,
   "change_shares": 17510544
  },
  {
   "manager": "BlackRock, Inc.",
   "filer_cik": "0002012383",
   "shares": 45106139,
   "pct": 6.86,
   "change_shares": 981365
  },
  {
   "manager": "FMR LLC",
   "filer_cik": "0000315066",
   "shares": 33187319,
   "pct": 5.05,
   "change_shares": 5683286
  },
  {
   "manager": "Sanders Capital, LLC",
   "filer_cik": "0001508097",
   "shares": 29129629,
   "pct": 4.43,
   "change_shares": -337526
  },
  {
   "manager": "State Street Corp.",
   "filer_cik": "0000093751",
   "shares": 24129558,
   "pct": 3.67,
   "change_shares": 669444
  },
  {
   "manager": "Capital International Investors",
   "filer_cik": "0001562230",
   "shares": 20689945,
   "pct": 3.15,
   "change_shares": 119654
  },
  {
   "manager": "Geode Capital Management, LLC",
   "filer_cik": "0001214717",
   "shares": 18511900,
   "pct": 2.81,
   "change_shares": 541325
  },
  {
   "manager": "Primecap Management Co/ca/",
   "filer_cik": "0000763212",
   "shares": 17521167,
   "pct": 2.66,
   "change_shares": -27400
  },
  {
   "manager": "Harris Associates L P",
   "filer_cik": "0000813917",
   "shares": 17329926,
   "pct": 2.64,
   "change_shares": -673028
  }
 ],
 "top_holders_trend": {
  "periods": [
   "2024-09-30",
   "2024-12-31",
   "2025-03-31",
   "2025-06-30",
   "2025-09-30",
   "2025-12-31",
   "2026-03-31",
   "2026-06-30"
  ],
  "holders": [
   {
    "manager": "Vanguard (all 13F filers)",
    "filer_cik": "fam:VANGUARD",
    "pct": [
     11.16,
     11.22,
     11.18,
     11.43,
     11.4,
     11.43,
     11.4,
     11.13
    ]
   },
   {
    "manager": "Berkshire Hathaway Inc",
    "filer_cik": "0001067983",
    "pct": [
     0.0,
     0.0,
     0.0,
     0.0,
     0.0,
     0.0,
     6.06,
     8.72
    ]
   },
   {
    "manager": "BlackRock, Inc.",
    "filer_cik": "0002012383",
    "pct": [
     6.59,
     6.73,
     7.15,
     7.06,
     6.9,
     6.85,
     6.72,
     6.86
    ]
   },
   {
    "manager": "FMR LLC",
    "filer_cik": "0000315066",
    "pct": [
     1.19,
     1.54,
     1.11,
     1.53,
     3.0,
     4.2,
     4.19,
     5.05
    ]
   },
   {
    "manager": "Sanders Capital, LLC",
    "filer_cik": "0001508097",
    "pct": [
     4.31,
     4.61,
     4.7,
     4.65,
     4.52,
     4.53,
     4.49,
     4.43
    ]
   }
  ]
 },
 "grouping": "Vanguard’s separate 13F filers (The Vanguard Group; from 2026, Vanguard Capital Management and Vanguard Portfolio Management) are combined; other managers are shown per 13F filer.",
 "insiders": {
  "class": "Common stock",
  "rows": [
   {
    "proxy_filed": "2024-04-26",
    "group": "Directors and executive officers (24)",
    "shares": 6164287,
    "pct_reported": "<1%",
    "url": "https://www.sec.gov/Archives/edgar/data/27904/000130817924000615/ldal2024_def14a.htm",
    "doc": "Proxy statement (DEF 14A)",
    "pct_value": 0.96,
    "pct_basis": "computed: proxy share count ÷ common shares outstanding as of 2024-03-31"
   },
   {
    "proxy_filed": "2025-04-25",
    "group": "Directors and executive officers (23)",
    "shares": 5758547,
    "pct_reported": "<1%",
    "url": "https://www.sec.gov/Archives/edgar/data/27904/000130817925000514/dal013395-def14a.htm",
    "doc": "Proxy statement (DEF 14A)",
    "pct_value": 0.88,
    "pct_basis": "computed: proxy share count ÷ common shares outstanding as of 2025-03-31"
   },
   {
    "proxy_filed": "2026-04-24",
    "group": "Directors and executive officers (22)",
    "shares": 5253482,
    "pct_reported": "<1%",
    "url": "https://www.sec.gov/Archives/edgar/data/27904/000130817926000345/dal014970-def14a.htm",
    "doc": "Proxy statement (DEF 14A)",
    "pct_value": 0.8,
    "pct_basis": "computed: proxy share count ÷ common shares outstanding as of 2026-03-31"
   }
  ]
 }
}