{
 "company": "mckesson",
 "snapshot": "FY2027Q1_27d85e0a",
 "documents": {
  "10-K:0000927653-21-000039": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0000927653-21-000039",
   "report_date": "2021-03-31",
   "filed": "2021-05-12",
   "fiscal_period": "FY2021 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765321000039/mck-20210331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765321000039/"
  },
  "10-K:0000927653-22-000051": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0000927653-22-000051",
   "report_date": "2022-03-31",
   "filed": "2022-05-09",
   "fiscal_period": "FY2022 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765322000051/mck-20220331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765322000051/"
  },
  "10-K:0000927653-23-000038": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0000927653-23-000038",
   "report_date": "2023-03-31",
   "filed": "2023-05-09",
   "fiscal_period": "FY2023 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765323000038/mck-20230331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765323000038/"
  },
  "10-K:0000927653-24-000035": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0000927653-24-000035",
   "report_date": "2024-03-31",
   "filed": "2024-05-08",
   "fiscal_period": "FY2024 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765324000035/mck-20240331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765324000035/"
  },
  "10-K:0000927653-25-000036": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0000927653-25-000036",
   "report_date": "2025-03-31",
   "filed": "2025-05-09",
   "fiscal_period": "FY2025 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765325000036/mck-20250331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765325000036/"
  },
  "10-K:0000927653-26-000069": {
   "kind": "filing",
   "form": "10-K",
   "accession": "0000927653-26-000069",
   "report_date": "2026-03-31",
   "filed": "2026-05-08",
   "fiscal_period": "FY2026 FY",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765326000069/mck-20260331.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765326000069/"
  },
  "10-Q:0000927653-20-000061": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-20-000061",
   "report_date": "2020-06-30",
   "filed": "2020-08-03",
   "fiscal_period": "FY2021 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765320000061/mck-20200630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765320000061/"
  },
  "10-Q:0000927653-20-000093": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-20-000093",
   "report_date": "2020-09-30",
   "filed": "2020-11-03",
   "fiscal_period": "FY2021 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765320000093/mck-20200930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765320000093/"
  },
  "10-Q:0000927653-21-000013": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-21-000013",
   "report_date": "2020-12-31",
   "filed": "2021-02-02",
   "fiscal_period": "FY2021 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765321000013/mck-20201231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765321000013/"
  },
  "10-Q:0000927653-21-000065": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-21-000065",
   "report_date": "2021-06-30",
   "filed": "2021-08-05",
   "fiscal_period": "FY2022 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765321000065/mck-20210630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765321000065/"
  },
  "10-Q:0000927653-21-000098": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-21-000098",
   "report_date": "2021-09-30",
   "filed": "2021-11-02",
   "fiscal_period": "FY2022 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765321000098/mck-20210930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765321000098/"
  },
  "10-Q:0000927653-22-000017": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-22-000017",
   "report_date": "2021-12-31",
   "filed": "2022-02-03",
   "fiscal_period": "FY2022 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765322000017/mck-20211231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765322000017/"
  },
  "10-Q:0000927653-22-000077": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-22-000077",
   "report_date": "2022-06-30",
   "filed": "2022-08-04",
   "fiscal_period": "FY2023 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765322000077/mck-20220630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765322000077/"
  },
  "10-Q:0000927653-22-000097": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-22-000097",
   "report_date": "2022-09-30",
   "filed": "2022-11-02",
   "fiscal_period": "FY2023 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765322000097/mck-20220930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765322000097/"
  },
  "10-Q:0000927653-23-000017": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-23-000017",
   "report_date": "2022-12-31",
   "filed": "2023-02-02",
   "fiscal_period": "FY2023 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765323000017/mck-20221231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765323000017/"
  },
  "10-Q:0000927653-23-000062": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-23-000062",
   "report_date": "2023-06-30",
   "filed": "2023-08-02",
   "fiscal_period": "FY2024 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765323000062/mck-20230630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765323000062/"
  },
  "10-Q:0000927653-23-000083": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-23-000083",
   "report_date": "2023-09-30",
   "filed": "2023-11-02",
   "fiscal_period": "FY2024 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765323000083/mck-20230930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765323000083/"
  },
  "10-Q:0000927653-24-000021": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-24-000021",
   "report_date": "2023-12-31",
   "filed": "2024-02-08",
   "fiscal_period": "FY2024 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765324000021/mck-20231231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765324000021/"
  },
  "10-Q:0000927653-24-000098": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-24-000098",
   "report_date": "2024-06-30",
   "filed": "2024-08-07",
   "fiscal_period": "FY2025 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765324000098/mck-20240630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765324000098/"
  },
  "10-Q:0000927653-24-000125": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-24-000125",
   "report_date": "2024-09-30",
   "filed": "2024-11-07",
   "fiscal_period": "FY2025 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765324000125/mck-20240930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765324000125/"
  },
  "10-Q:0000927653-25-000014": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-25-000014",
   "report_date": "2024-12-31",
   "filed": "2025-02-06",
   "fiscal_period": "FY2025 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765325000014/mck-20241231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765325000014/"
  },
  "10-Q:0000927653-25-000107": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-25-000107",
   "report_date": "2025-06-30",
   "filed": "2025-08-06",
   "fiscal_period": "FY2026 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765325000107/mck-20250630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765325000107/"
  },
  "10-Q:0000927653-25-000140": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-25-000140",
   "report_date": "2025-09-30",
   "filed": "2025-11-06",
   "fiscal_period": "FY2026 Q2",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765325000140/mck-20250930.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765325000140/"
  },
  "10-Q:0000927653-26-000017": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-26-000017",
   "report_date": "2025-12-31",
   "filed": "2026-02-04",
   "fiscal_period": "FY2026 Q3",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765326000017/mck-20251231.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765326000017/"
  },
  "10-Q:0000927653-26-000234": {
   "kind": "filing",
   "form": "10-Q",
   "accession": "0000927653-26-000234",
   "report_date": "2026-06-30",
   "filed": "2026-08-05",
   "fiscal_period": "FY2027 Q1",
   "url": "https://www.sec.gov/Archives/edgar/data/927653/000092765326000234/mck-20260630.htm",
   "index_url": "https://www.sec.gov/Archives/edgar/data/927653/000092765326000234/"
  }
 }
}
