| | 2021-09-30 | 2022-09-30 | 2023-09-30 | 2024-09-30 | 2025-09-30 |
| Beginning Cash Position | | 2392000000.0 | 1159000000.0 | 1481000000.0 | 1856000000.0 |
| Capital Expenditure | | -973000000.0 | -874000000.0 | -725000000.0 | -760000000.0 |
| Capital Expenditure Reported | | -973000000.0 | -874000000.0 | -725000000.0 | -760000000.0 |
| Cash Dividends Paid | | -1082000000.0 | -1114000000.0 | -1100000000.0 | -1196000000.0 |
| Cash Flow From Continuing Financing Activities | | -736000000.0 | -1957000000.0 | 2086000000.0 | -3617000000.0 |
| Cash Flow From Continuing Investing Activities | | -3220000000.0 | -716000000.0 | -5514000000.0 | -818000000.0 |
| Cash Flow From Continuing Operating Activities | | 2470000000.0 | 2990000000.0 | 3843000000.0 | 3431000000.0 |
| Cash From Discontinued Financing Activities | 0.0 | 145000000.0 | 0.0 | 0.0 | |
| Cash From Discontinued Investing Activities | -37000000.0 | -11000000.0 | 0.0 | 0.0 | |
| Cash From Discontinued Operating Activities | | 163000000.0 | -1000000.0 | -46000000.0 | 0.0 |
| Change In Account Payable | | -473000000.0 | -517000000.0 | 625000000.0 | -185000000.0 |
| Change In Inventory | | -631000000.0 | -15000000.0 | 98000000.0 | -410000000.0 |
| Change In Payable | | -473000000.0 | -517000000.0 | 625000000.0 | -185000000.0 |
| Change In Payables And Accrued Expense | | -473000000.0 | -517000000.0 | 625000000.0 | -185000000.0 |
| Change In Prepaid Assets | | -436000000.0 | 192000000.0 | 23000000.0 | -276000000.0 |
| Change In Receivables | | 32000000.0 | -290000000.0 | -453000000.0 | 71000000.0 |
| Change In Working Capital | | -1508000000.0 | -630000000.0 | 293000000.0 | -800000000.0 |
| Changes In Account Receivables | | 32000000.0 | -290000000.0 | -453000000.0 | 71000000.0 |
| Changes In Cash | | -1188000000.0 | 317000000.0 | 371000000.0 | -1005000000.0 |
| Common Stock Dividend Paid | | -1082000000.0 | -1114000000.0 | -1100000000.0 | -1196000000.0 |
| Common Stock Issuance | 0.0 | 0.0 | | | |
| Common Stock Payments | -1750000000.0 | -500000000.0 | | | -1000000000.0 |
| Deferred Income Tax | | -120000000.0 | -622000000.0 | -211000000.0 | -474000000.0 |
| Deferred Tax | | -120000000.0 | -622000000.0 | -211000000.0 | -474000000.0 |
| Depreciation Amortization Depletion | | 2229000000.0 | 2288000000.0 | 2286000000.0 | 2462000000.0 |
| Depreciation And Amortization | | 2229000000.0 | 2288000000.0 | 2286000000.0 | 2462000000.0 |
| Effect Of Exchange Rate Changes | | -45000000.0 | 5000000.0 | 4000000.0 | 0.0 |
| End Cash Position | | 1159000000.0 | 1481000000.0 | 1856000000.0 | 851000000.0 |
| Excess Tax Benefit From Stock Based Compensation | 15000000.0 | 32000000.0 | 19000000.0 | | |
| Financing Cash Flow | | -591000000.0 | -1957000000.0 | 2086000000.0 | -3617000000.0 |
| Free Cash Flow | | 1660000000.0 | 2115000000.0 | 3072000000.0 | 2671000000.0 |
| Gain Loss On Sale Of Business | | 0.0 | -268000000.0 | 0.0 | 0.0 |
| Investing Cash Flow | | -3231000000.0 | -716000000.0 | -5514000000.0 | -818000000.0 |
| Issuance Of Capital Stock | 0.0 | 0.0 | | | |
| Issuance Of Debt | | 497000000.0 | 1662000000.0 | 4517000000.0 | 0.0 |
| Long Term Debt Issuance | | 497000000.0 | 1662000000.0 | 4517000000.0 | 0.0 |
| Long Term Debt Payments | | -805000000.0 | -2155000000.0 | -1142000000.0 | -1789000000.0 |
| Net Business Purchase And Sale | | -2070000000.0 | 540000000.0 | -3924000000.0 | 0.0 |
| Net Common Stock Issuance | | -500000000.0 | 0.0 | -500000000.0 | -1000000000.0 |
| Net Income From Continuing Operations | | 1635000000.0 | 1530000000.0 | 1705000000.0 | 1678000000.0 |
| Net Investment Purchase And Sale | | 0.0 | 0.0 | -421000000.0 | 422000000.0 |
| Net Issuance Payments Of Debt | | -78000000.0 | -723000000.0 | 3775000000.0 | -1334000000.0 |
| Net Long Term Debt Issuance | | -308000000.0 | -493000000.0 | 3375000000.0 | -1789000000.0 |
| Net Other Financing Charges | | 924000000.0 | -120000000.0 | -89000000.0 | -87000000.0 |
| Net Other Investing Changes | | -177000000.0 | -382000000.0 | -444000000.0 | -480000000.0 |
| Net Short Term Debt Issuance | | 230000000.0 | -230000000.0 | 400000000.0 | 455000000.0 |
| Operating Cash Flow | | 2633000000.0 | 2989000000.0 | 3797000000.0 | 3431000000.0 |
| Operating Gains Losses | | -55000000.0 | -156000000.0 | -70000000.0 | 23000000.0 |
| Other Non Cash Items | | 56000000.0 | 321000000.0 | -407000000.0 | 284000000.0 |
| Pension And Employee Benefit Expense | | -55000000.0 | 112000000.0 | -70000000.0 | 23000000.0 |
| Purchase Of Business | | -2070000000.0 | 0.0 | -3924000000.0 | 0.0 |
| Purchase Of Investment | | 0.0 | 0.0 | -421000000.0 | |
| Repayment Of Debt | | -805000000.0 | -2155000000.0 | -1142000000.0 | -1789000000.0 |
| Repurchase Of Capital Stock | -1750000000.0 | -500000000.0 | | | -1000000000.0 |
| Sale Of Business | | 0.0 | 540000000.0 | 0.0 | 0.0 |
| Stock Based Compensation | | 233000000.0 | 259000000.0 | 247000000.0 | 258000000.0 |