{
 "company": "occidental-petroleum",
 "snapshot": "FY2026Q2_15b9795d",
 "documents": {
  "10-K/A:0000797468-23-000031": {
   "kind": "filing",
   "form": "10-K/A",
   "accession": "0000797468-23-000031",
   "report_date": "2022-12-31",
   "filed": "2023-05-09",
   "fiscal_period": "FY2022 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746823000031/oxy-20221231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746823000031/"
  },
  "10-K:0000797468-21-000009": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0000797468-21-000009",
   "report_date": "2020-12-31",
   "filed": "2021-02-26",
   "fiscal_period": "FY2020 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746821000009/oxy-20201231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746821000009/"
  },
  "10-K:0000797468-22-000008": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0000797468-22-000008",
   "report_date": "2021-12-31",
   "filed": "2022-02-24",
   "fiscal_period": "FY2021 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746822000008/oxy-20211231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746822000008/"
  },
  "10-K:0000797468-24-000034": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0000797468-24-000034",
   "report_date": "2023-12-31",
   "filed": "2024-02-14",
   "fiscal_period": "FY2023 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746824000034/oxy-20231231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746824000034/"
  },
  "10-K:0000797468-25-000029": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0000797468-25-000029",
   "report_date": "2024-12-31",
   "filed": "2025-02-18",
   "fiscal_period": "FY2024 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746825000029/oxy-20241231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746825000029/"
  },
  "10-K:0001628280-26-009059": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0001628280-26-009059",
   "report_date": "2025-12-31",
   "filed": "2026-02-18",
   "fiscal_period": "FY2025 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000162828026009059/oxy-20251231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000162828026009059/"
  },
  "10-Q:0000797468-20-000010": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-20-000010",
   "report_date": "2020-03-31",
   "filed": "2020-05-06",
   "fiscal_period": "FY2020 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746820000010/oxy-20200331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746820000010/"
  },
  "10-Q:0000797468-20-000027": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-20-000027",
   "report_date": "2020-06-30",
   "filed": "2020-08-10",
   "fiscal_period": "FY2020 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746820000027/oxy-20200630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746820000027/"
  },
  "10-Q:0000797468-20-000033": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-20-000033",
   "report_date": "2020-09-30",
   "filed": "2020-11-09",
   "fiscal_period": "FY2020 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746820000033/oxy-20200930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746820000033/"
  },
  "10-Q:0000797468-21-000017": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-21-000017",
   "report_date": "2021-03-31",
   "filed": "2021-05-10",
   "fiscal_period": "FY2021 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746821000017/oxy-20210331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746821000017/"
  },
  "10-Q:0000797468-21-000028": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-21-000028",
   "report_date": "2021-06-30",
   "filed": "2021-08-03",
   "fiscal_period": "FY2021 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746821000028/oxy-20210630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746821000028/"
  },
  "10-Q:0000797468-21-000036": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-21-000036",
   "report_date": "2021-09-30",
   "filed": "2021-11-04",
   "fiscal_period": "FY2021 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746821000036/oxy-20210930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746821000036/"
  },
  "10-Q:0000797468-22-000018": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-22-000018",
   "report_date": "2022-03-31",
   "filed": "2022-05-10",
   "fiscal_period": "FY2022 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746822000018/oxy-20220331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746822000018/"
  },
  "10-Q:0000797468-22-000030": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-22-000030",
   "report_date": "2022-06-30",
   "filed": "2022-08-02",
   "fiscal_period": "FY2022 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746822000030/oxy-20220630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746822000030/"
  },
  "10-Q:0000797468-22-000036": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-22-000036",
   "report_date": "2022-09-30",
   "filed": "2022-11-08",
   "fiscal_period": "FY2022 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746822000036/oxy-20220930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746822000036/"
  },
  "10-Q:0000797468-23-000032": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-23-000032",
   "report_date": "2023-03-31",
   "filed": "2023-05-09",
   "fiscal_period": "FY2023 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746823000032/oxy-20230331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746823000032/"
  },
  "10-Q:0000797468-23-000075": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-23-000075",
   "report_date": "2023-06-30",
   "filed": "2023-08-02",
   "fiscal_period": "FY2023 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746823000075/oxy-20230630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746823000075/"
  },
  "10-Q:0000797468-23-000092": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-23-000092",
   "report_date": "2023-09-30",
   "filed": "2023-11-07",
   "fiscal_period": "FY2023 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746823000092/oxy-20230930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746823000092/"
  },
  "10-Q:0000797468-24-000095": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-24-000095",
   "report_date": "2024-03-31",
   "filed": "2024-05-07",
   "fiscal_period": "FY2024 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746824000095/oxy-20240331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746824000095/"
  },
  "10-Q:0000797468-24-000136": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-24-000136",
   "report_date": "2024-06-30",
   "filed": "2024-08-07",
   "fiscal_period": "FY2024 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746824000136/oxy-20240630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746824000136/"
  },
  "10-Q:0000797468-24-000164": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-24-000164",
   "report_date": "2024-09-30",
   "filed": "2024-11-12",
   "fiscal_period": "FY2024 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746824000164/oxy-20240930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746824000164/"
  },
  "10-Q:0000797468-25-000076": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-25-000076",
   "report_date": "2025-03-31",
   "filed": "2025-05-07",
   "fiscal_period": "FY2025 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746825000076/oxy-20250331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746825000076/"
  },
  "10-Q:0000797468-25-000111": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000797468-25-000111",
   "report_date": "2025-06-30",
   "filed": "2025-08-06",
   "fiscal_period": "FY2025 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746825000111/oxy-20250630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746825000111/"
  },
  "10-Q:0001628280-25-051071": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0001628280-25-051071",
   "report_date": "2025-09-30",
   "filed": "2025-11-10",
   "fiscal_period": "FY2025 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000162828025051071/oxy-20250930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000162828025051071/"
  },
  "10-Q:0001628280-26-030584": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0001628280-26-030584",
   "report_date": "2026-03-31",
   "filed": "2026-05-05",
   "fiscal_period": "FY2026 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000162828026030584/oxy-20260331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000162828026030584/"
  },
  "10-Q:0001628280-26-053388": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0001628280-26-053388",
   "report_date": "2026-06-30",
   "filed": "2026-08-05",
   "fiscal_period": "FY2026 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000162828026053388/oxy-20260630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000162828026053388/"
  },
  "8-K:0000797468-24-000130": {
   "kind": "filing",
   "form": "8-K",
   "accession": "0000797468-24-000130",
   "report_date": "2024-08-01",
   "filed": "2024-08-01",
   "fiscal_period": null,
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000079746824000130/oxy-20240801.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000079746824000130/"
  },
  "8-K:0001628280-26-000153": {
   "kind": "filing",
   "form": "8-K",
   "accession": "0001628280-26-000153",
   "report_date": "2026-01-02",
   "filed": "2026-01-02",
   "fiscal_period": null,
   "url": "https://www.sec.gov/Archives/edgar/data/797468/000162828026000153/oxy-20260102.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/797468/000162828026000153/"
  }
 }
}
