{
 "ticker": "DAL",
 "name": "Delta AIR Lines, Inc.",
 "legal_name": "DELTA AIR LINES, INC.",
 "cik": "0000027904",
 "exchange": "NYSE",
 "sic": "4512",
 "industry": "Air Transportation, Scheduled",
 "state": "DE",
 "fiscal_year_end": "1231",
 "is_financial": false,
 "is_utility": false,
 "snapshot_date": "2026-10-26",
 "price": {
  "value": 76.78,
  "as_of": "2026-10-23",
  "source": "Alpaca Market Data (consolidated SIP daily bar)",
  "url": "https://docs.alpaca.markets/docs/historical-stock-data-1"
 },
 "market_cap": {
  "value": 50514512536.4,
  "as_of": "2026-10-23",
  "unit": "USD",
  "meaning": "price on the price date x latest reported point-in-time shares (see inputs.share_count_as_of)",
  "warning": null,
  "unavailable_reason": null,
  "inputs": {
   "traded_price": {
    "value": 76.78,
    "as_of": "2026-10-23",
    "unit": "USD per traded unit (share or ADS)",
    "source": "Alpaca Market Data (consolidated SIP daily bar)",
    "url": "https://docs.alpaca.markets/docs/historical-stock-data-1"
   },
   "sec_shares_outstanding": {
    "value": 657912380.0,
    "unit": "underlying shares",
    "concept": "SEC cover page 10-Q 0000027904-26-000038 (657,912,380 shares (single class on cover)); filing document https://www.sec.gov/Archives/edgar/data/27904/000002790426000038/dal-20260930.htm",
    "period_end": "2026-09-30",
    "accession": "0000027904-26-000038",
    "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000038/R1.htm"
   },
   "depositary_ratio": {
    "value": 1.0,
    "unit": "underlying shares per traded unit",
    "status": "domestic",
    "source": "10-K filer; SEC shares are the traded units",
    "evidence_url": null,
    "evidence_form": null,
    "evidence_filed": null,
    "body_snippet": null
   },
   "formula": "market_value = traded_price (price date) / depositary_ratio x latest point-in-time SEC shares outstanding (share-count date shown; from the filing cover page, summed across share classes only where the issuer filing verifies the classes are economically equivalent (rule + evidence URL in the source text), else withheld; priced at the primary listed class, so where other classes trade at a different price the value is an approximation; restated only for issuer-verified splits after the count date); weighted-average share counts are never used",
   "split_adjustment": null,
   "share_count_as_of": "2026-09-30",
   "share_count_age_days_at_price_date": 23,
   "warning": null,
   "computed": "76.78 (price 2026-10-23) / 1 x 657,912,380 (shares at 2026-09-30) = 50,514,512,536"
  }
 },
 "share_basis": {
  "ratio": 1.0,
  "status": "domestic",
  "source": "10-K filer; SEC shares are the traded units",
  "evidence": null,
  "meaning": "SEC share counts and per-share figures are per underlying share; ratio = underlying shares per traded unit (1 for domestic common stock; N for an ADS representing N shares)."
 },
 "scores": {
  "graham": {
   "score": 60.0,
   "status": "ok",
   "complete": true,
   "missing_tests": [],
   "passes_all": false,
   "data_as_of": "2025-12-31",
   "data_as_of_meaning": "oldest current-period input the score depends on",
   "stale_inputs": [
    "Revenue"
   ],
   "history_from": "2013",
   "history_through": "2025",
   "price_as_of": "2026-10-23",
   "price_stale": false,
   "verification": {
    "verified": 14,
    "mismatch": 0,
    "unverified": 21,
    "not_cross_checked": 2
   },
   "coverage": null,
   "computed_on": "2026-10-26",
   "rules_url": "https://theclaudetrader.com/p/graham",
   "components": [
    {
     "test": "1",
     "name": "Adequate size",
     "value": 63.36,
     "unit": "revenue $B",
     "threshold": ">= 1",
     "points": 5.0,
     "max": 5
    },
    {
     "test": "2a",
     "name": "Current ratio",
     "value": 0.4,
     "threshold": ">= 2.0",
     "points": 0.0,
     "max": 15
    },
    {
     "test": "2b",
     "name": "Long-term debt vs working capital",
     "value": null,
     "unit": "LTD / WC",
     "threshold": "<= 1.0",
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     "max": 15,
     "note": "working capital not positive"
    },
    {
     "test": "3",
     "name": "Positive earnings each of 10 years",
     "value": "9 of 10",
     "threshold": "10 of 10",
     "points": 13.5,
     "max": 15
    },
    {
     "test": "4",
     "name": "Dividends every year for 20 years",
     "value": "11 of 20",
     "threshold": "20 of 20",
     "points": 8.25,
     "max": 15,
     "missing_years": [
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      2008,
      2009,
      2010,
      2011,
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     ],
     "cross_check": {
      "verified_years": [
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      ],
      "mismatch_years": [],
      "unverified_years": [
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       2008,
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      ]
     },
     "note": null
    },
    {
     "test": "5",
     "name": "EPS growth, 3-yr avg now vs 10 yrs ago",
     "value": "3.99 -> 6.72 (+69%)",
     "threshold": ">= +33%",
     "points": 10.0,
     "max": 10
    },
    {
     "test": "6",
     "name": "P/E on 3-year average EPS",
     "value": 11.4,
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     "points": 15.0,
     "max": 15,
     "note": null
    },
    {
     "test": "7",
     "name": "P/B <= 1.5, or P/E x P/B <= 22.5",
     "value": "P/B 2.24, product 25.6",
     "threshold": "<= 1.5 or <= 22.5",
     "points": 8.2,
     "max": 10
    }
   ],
   "inputs": [
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     "name": "Price (close, per traded unit)",
     "value": 76.78,
     "kind": "price",
     "source": "Alpaca Market Data (consolidated SIP daily bar)",
     "url": "https://docs.alpaca.markets/docs/historical-stock-data-1",
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    },
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     "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/",
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     "stale": true
    },
    {
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     "kind": "current",
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    {
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    {
     "name": "equity",
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    {
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     "kind": "history",
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    {
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    {
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     "name": "EPS diluted FY2015",
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     "name": "EPS diluted FY2016",
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     "source": "SEC XBRL EarningsPerShareDiluted",
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     "accession": "0000027904-26-000013",
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    {
     "name": "Shares outstanding",
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   "value_reported": 7.17,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2024,
   "period_end": "2024-12-31",
   "sec_frame": "CY2024",
   "value": 5.33,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/",
   "accession": "0000027904-26-000013",
   "value_reported": 5.33,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2025,
   "period_end": "2025-12-31",
   "sec_frame": "CY2025",
   "value": 7.66,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/",
   "accession": "0000027904-26-000013",
   "value_reported": 7.66,
   "split_factor": 1.0,
   "split_basis": null
  }
 ],
 "revenue_by_fy": [
  {
   "fy": 2013,
   "period_end": "2013-12-31",
   "sec_frame": "CY2013",
   "value": 37773000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790416000018/",
   "accession": "0000027904-16-000018"
  },
  {
   "fy": 2014,
   "period_end": "2014-12-31",
   "sec_frame": "CY2014",
   "value": 40362000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790417000004/",
   "accession": "0000027904-17-000004"
  },
  {
   "fy": 2015,
   "period_end": "2015-12-31",
   "sec_frame": "CY2015",
   "value": 40704000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790418000006/",
   "accession": "0000027904-18-000006"
  },
  {
   "fy": 2016,
   "period_end": "2016-12-31",
   "sec_frame": "CY2016",
   "value": 39639000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790418000006/",
   "accession": "0000027904-18-000006"
  },
  {
   "fy": 2017,
   "period_end": "2017-12-31",
   "sec_frame": "CY2017",
   "value": 41244000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790418000006/",
   "accession": "0000027904-18-000006"
  },
  {
   "fy": 2018,
   "period_end": "2018-12-31",
   "sec_frame": "CY2018",
   "value": 44438000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790421000003/",
   "accession": "0000027904-21-000003"
  },
  {
   "fy": 2019,
   "period_end": "2019-12-31",
   "sec_frame": "CY2019",
   "value": 47007000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790422000003/",
   "accession": "0000027904-22-000003"
  },
  {
   "fy": 2020,
   "period_end": "2020-12-31",
   "sec_frame": "CY2020",
   "value": 17095000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790423000003/",
   "accession": "0000027904-23-000003"
  },
  {
   "fy": 2021,
   "period_end": "2021-12-31",
   "sec_frame": "CY2021",
   "value": 29899000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790424000003/",
   "accession": "0000027904-24-000003"
  },
  {
   "fy": 2022,
   "period_end": "2022-12-31",
   "sec_frame": "CY2022",
   "value": 50582000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790425000004/",
   "accession": "0000027904-25-000004"
  },
  {
   "fy": 2023,
   "period_end": "2023-12-31",
   "sec_frame": "CY2023",
   "value": 58048000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/",
   "accession": "0000027904-26-000013"
  },
  {
   "fy": 2024,
   "period_end": "2024-12-31",
   "sec_frame": "CY2024",
   "value": 61643000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/",
   "accession": "0000027904-26-000013"
  },
  {
   "fy": 2025,
   "period_end": "2025-12-31",
   "sec_frame": "CY2025",
   "value": 63364000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/",
   "accession": "0000027904-26-000013"
  }
 ],
 "dividend_years": [
  2013,
  2014,
  2015,
  2016,
  2017,
  2018,
  2019,
  2020,
  2023,
  2024,
  2025,
  2026
 ],
 "insider_transactions_recent": [
  {
   "txn_date": "2026-08-05",
   "insider_name": "Sear Steven M",
   "role": "officer",
   "code": "S",
   "shares": 40460.0,
   "price": 93.55,
   "value": 3785033.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826006058/"
  },
  {
   "txn_date": "2026-08-05",
   "insider_name": "HUERTA MICHAEL P",
   "role": "director",
   "code": "S",
   "shares": 3100.0,
   "price": 94.12,
   "value": 291772.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826006060/"
  },
  {
   "txn_date": "2026-08-04",
   "insider_name": "Bastian Edward H",
   "role": "CEO",
   "code": "S",
   "shares": 206510.0,
   "price": 92.8,
   "value": 19164128.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826006000/"
  },
  {
   "txn_date": "2026-08-04",
   "insider_name": "BELLEMARE ALAIN",
   "role": "officer",
   "code": "S",
   "shares": 35000.0,
   "price": 92.72,
   "value": 3245200.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826006001/"
  },
  {
   "txn_date": "2026-08-04",
   "insider_name": "Carter Peter W",
   "role": "Pres",
   "code": "S",
   "shares": 39900.0,
   "price": 92.98,
   "value": 3709902.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826006002/"
  },
  {
   "txn_date": "2026-08-03",
   "insider_name": "DEWALT DAVID G",
   "role": "director",
   "code": "S",
   "shares": 31756.0,
   "price": 90.85,
   "value": 2885032.5999999996,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826005999/"
  },
  {
   "txn_date": "2026-05-27",
   "insider_name": "BELLEMARE ALAIN",
   "role": "officer",
   "code": "S",
   "shares": 25000.0,
   "price": 81.44,
   "value": 2036000.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826004349/"
  },
  {
   "txn_date": "2026-05-27",
   "insider_name": "Ausband Allison C",
   "role": "officer",
   "code": "S",
   "shares": 5000.0,
   "price": 80.9,
   "value": 404500.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826004350/"
  },
  {
   "txn_date": "2026-05-26",
   "insider_name": "Ausband Allison C",
   "role": "officer",
   "code": "S",
   "shares": 5000.0,
   "price": 79.0,
   "value": 395000.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826004350/"
  },
  {
   "txn_date": "2026-05-22",
   "insider_name": "Ausband Allison C",
   "role": "officer",
   "code": "S",
   "shares": 9710.0,
   "price": 76.0,
   "value": 737960.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826004302/"
  },
  {
   "txn_date": "2026-05-21",
   "insider_name": "Ausband Allison C",
   "role": "officer",
   "code": "S",
   "shares": 5000.0,
   "price": 73.5,
   "value": 367500.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826004302/"
  },
  {
   "txn_date": "2026-05-07",
   "insider_name": "BELLEMARE ALAIN",
   "role": "officer",
   "code": "S",
   "shares": 20621.0,
   "price": 72.75,
   "value": 1500177.75,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826003609/"
  },
  {
   "txn_date": "2026-04-14",
   "insider_name": "Laughter John E",
   "role": "officer",
   "code": "S",
   "shares": 15000.0,
   "price": 71.61,
   "value": 1074150.0,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826002994/"
  },
  {
   "txn_date": "2026-04-10",
   "insider_name": "Laughter John E",
   "role": "officer",
   "code": "S",
   "shares": 69304.0,
   "price": 68.15,
   "value": 4723067.600000001,
   "is_10b5_1": 0,
   "source_url": "https://www.sec.gov/Archives/edgar/data/27904/000168316826002861/"
  }
 ],
 "links": {
  "sec_filings": "https://www.sec.gov/edgar/browse/?CIK=0000027904",
  "sec_xbrl_companyfacts": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000027904.json",
  "sec_form4": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000027904&type=4",
  "sec_8k": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000027904&type=8-K",
  "yahoo": "https://finance.yahoo.com/quote/DAL",
  "stooq": "https://stooq.com/q/d/?s=dal.us",
  "external_views_link_only": {
   "morningstar": "https://www.morningstar.com/search?query=DAL",
   "finviz": "https://finviz.com/quote.ashx?t=DAL",
   "stockanalysis": "https://stockanalysis.com/stocks/dal/",
   "seeking_alpha": "https://seekingalpha.com/symbol/DAL",
   "openinsider": "http://openinsider.com/search?q=DAL",
   "google_news": "https://news.google.com/rss/search?q=DAL+stock"
  }
 },
 "machine_readable": {
  "json": "https://theclaudetrader.com/s/DAL.json",
  "markdown": "https://theclaudetrader.com/s/DAL.md",
  "research_packet": "https://theclaudetrader.com/r/DAL.json",
  "index": "https://theclaudetrader.com/llms.txt"
 },
 "dossier": null,
 "cite_as": "The Claude Trader snapshot 2026-10-26, https://theclaudetrader.com/s/DAL; data from SEC EDGAR XBRL and market prices (Alpaca Market Data, Yahoo Finance) to 2026-10-23.",
 "disclaimer": "Scores are deterministic rule outputs from public filings. fair_value_model is a labelled model estimate from the same filings (method at /fair-value), not an opinion or recommendation.",
 "fair_value_model": {
  "fair_value": 95.82,
  "fv_low": 76.8,
  "fv_high": 157.91,
  "fv_gap_pct": 24.8,
  "fv_verdict": "green",
  "fv_methods": 3,
  "fv_as_of": "2026-10-23",
  "fv_calculated_on": "2026-10-26",
  "fv_inputs_through": "2026-10-09",
  "fv_skipped": null,
  "unit": "per traded unit (share or ADS), same currency as the price",
  "methods": {
   "dcf": {
    "value": 95.81740379171265,
    "growth_used": 0.1,
    "fcf_avg": 2623000000.0,
    "inputs": {
     "fcf": {
      "value": 2623000000.0,
      "years": [
       2023,
       2024,
       2025
      ],
      "by_year": [
       1141000000.0,
       2885000000.0,
       3843000000.0
      ],
      "cfo": [
       {
        "value": 6464000000.0,
        "tag": "SEC XBRL NetCashProvidedByUsedInOperatingActivities",
        "period_end": "2023-12-31",
        "accession": "0000027904-26-000013",
        "filed": null,
        "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/"
       },
       {
        "value": 8025000000.0,
        "tag": "SEC XBRL NetCashProvidedByUsedInOperatingActivities",
        "period_end": "2024-12-31",
        "accession": "0000027904-26-000013",
        "filed": null,
        "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/"
       },
       {
        "value": 8342000000.0,
        "tag": "SEC XBRL NetCashProvidedByUsedInOperatingActivities",
        "period_end": "2025-12-31",
        "accession": "0000027904-26-000013",
        "filed": null,
        "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/"
       }
      ],
      "capex": [
       {
        "value": 5323000000.0,
        "tag": "SEC XBRL PaymentsToAcquireProductiveAssets (10-K via companyfacts; capex fallback)",
        "period_end": "2023-12-31",
        "accession": "0000027904-26-000013",
        "filed": "2026-02-11",
        "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/"
       },
       {
        "value": 5140000000.0,
        "tag": "SEC XBRL PaymentsToAcquireProductiveAssets (10-K via companyfacts; capex fallback)",
        "period_end": "2024-12-31",
        "accession": "0000027904-26-000013",
        "filed": "2026-02-11",
        "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/"
       },
       {
        "value": 4499000000.0,
        "tag": "SEC XBRL PaymentsToAcquireProductiveAssets (10-K via companyfacts; capex fallback)",
        "period_end": "2025-12-31",
        "accession": "0000027904-26-000013",
        "filed": "2026-02-11",
        "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/"
       }
      ]
     },
     "revenue_cagr_5y": {
      "value": 0.29955509431200555,
      "from": {
       "value": 17095000000.0,
       "tag": "SEC XBRL RevenueFromContractWithCustomerExcludingAssessedTax",
       "period_end": "2020-12-31",
       "accession": "0000027904-23-000003",
       "filed": null,
       "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790423000003/"
      },
      "to": {
       "value": 63364000000.0,
       "tag": "SEC XBRL RevenueFromContractWithCustomerExcludingAssessedTax",
       "period_end": "2025-12-31",
       "accession": "0000027904-26-000013",
       "filed": null,
       "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/"
      }
     },
     "shares": {
      "value": 657912380.0,
      "tag": "SEC cover page 10-Q 0000027904-26-000038 (657,912,380 shares (single class on cover)); filing document https://www.sec.gov/Archives/edgar/data/27904/000002790426000038/dal-20260930.htm",
      "period_end": "2026-09-30",
      "accession": "0000027904-26-000038",
      "filed": "2026-10-09",
      "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000038/R1.htm"
     }
    }
   },
   "earnings": {
    "value": 157.90735655823457,
    "pe_used": 20.614537409691195,
    "pe_raw": 20.614537409691195,
    "pe_basis": "SIC 45 peer median excluding itself (4 peers)",
    "inputs": {
     "eps": {
      "fy": 2025,
      "value": 7.66,
      "tag": "SEC XBRL EarningsPerShareDiluted",
      "period_end": "2025-12-31",
      "accession": "0000027904-26-000013",
      "filed": null,
      "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/",
      "value_reported": 7.66,
      "split_factor": 1.0
     }
    }
   },
   "graham": {
    "value": 76.79594700277856,
    "inputs": {
     "eps": {
      "fy": 2025,
      "value": 7.66,
      "tag": "SEC XBRL EarningsPerShareDiluted",
      "period_end": "2025-12-31",
      "accession": "0000027904-26-000013",
      "filed": null,
      "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000013/",
      "value_reported": 7.66,
      "split_factor": 1.0
     },
     "bvps": {
      "value": 34.21884233277385,
      "equity": {
       "value": 22513000000.0,
       "tag": "SEC XBRL StockholdersEquity",
       "period_end": "2026-09-30",
       "accession": "0000027904-26-000038",
       "filed": null,
       "url": "https://www.sec.gov/Archives/edgar/data/27904/000002790426000038/"
      },
      "shares": 657912380.0
     }
    }
   }
  },
  "method_note": "Median of up to three methods from SEC filings: owner-earnings DCF (3-yr avg FCF, 10-yr two-stage, growth = min(5-yr revenue CAGR, 10%) fading to 2.5%, 9% discount), trailing EPS x SIC-peer median P/E (8-35), Graham number. Model estimate, not advice.",
  "discount_rate": 0.09,
  "terminal_growth": 0.025,
  "verdict_rule": "green: fair value more than 10% above price; red: more than 10% below; amber: within 10%",
  "page": "https://theclaudetrader.com/fair-value"
 }
}